JP4101742B2 - Shutter device - Google Patents

Description

  The present invention relates to a take-up shutter device that winds and houses a shutter curtain on a take-up shaft, and can be used, for example, as a shutter device for disaster prevention for forming a disaster prevention zone with the shutter curtain.

  Fire prevention shutter devices for fire prevention and smoke prevention, etc., in the event of an emergency such as a fire, etc., the space is partitioned by the closing operation of the shutter curtain having fire resistance, etc., thereby forming a disaster prevention zone, and the generated flame It blocks out smoke and smoke.

  However, if a person cannot evacuate from a space where flames or smoke is generated to a safe space before the shutter curtain closing operation is completed, the person will be left behind. It will end up.

  Therefore, in consideration of the case where a person is left behind in a space where a flame or smoke is generated, at least one piece used as an emergency entrance or the like is made to communicate between spaces partitioned by a shutter curtain. There is a shutter device for disaster prevention in which the communication part is formed in the curtain body of the shutter curtain.

  However, if only the communication part is formed in the curtain body, the generated flame or smoke may pass through the communication part and flow into a safe space. A shutter device for disaster prevention has been proposed in which two covering members are provided on the curtain body so as to open and close the portion (see, for example, Patent Document 1).

  In this shutter device for disaster prevention, the two cover members cover the communication part so that it can be opened and closed freely on one surface and the other surface of the curtain body, so that the peripheral edge of the communication part becomes thicker than the other parts. Therefore, the winding diameter of the portion where the two covering members are provided out of the winding diameter of the shutter curtain when the shutter curtain is wound around the winding shaft and stored becomes large.

Therefore, in this shutter device for disaster prevention, in order to adjust the winding diameter of the shutter curtain when the shutter curtain is wound around the winding shaft and stored in the other part of the curtain body where the communication portion is not formed. Is provided so that the winding diameter of the shutter curtain on the winding shaft is substantially uniform in the axial direction of the winding shaft.
JP 2001-82054 A (paragraph numbers 0038 to 0068, FIG. 1)

  However, in this shutter device for disaster prevention, a roll diameter adjusting member is required in addition to the two covering members as a component of the curtain body of the shutter curtain. The number of parts increases.

  An object of the present invention is to provide a shutter device that makes it possible to make the winding diameter of the shutter curtain on the winding shaft substantially uniform in the axial direction of the winding shaft without using a special member such as a winding diameter adjusting member. There is a place to do.

  The shutter device according to the present invention has a shutter curtain which partitions a space by a closing operation and is wound around and accommodated by a take-up shaft. The shutter curtain is formed on the curtain body and the curtain body. It is configured to include at least one communication portion that allows communication between spaces partitioned by the curtain, and two covering members that open and close the communication portion on one side and the other side of the curtain body. In the shutter device, each of the two covering members has a covering portion that covers a part of the communicating portion and a protruding portion that protrudes from the communicating portion, and one of the communicating portions for both of the two covering members. The shape of the communication residual portion which is a portion excluding the portion covered by the cover portion of the cover member and the shape of the protruding portion of the other cover member are the axial direction of the winding shaft When it is parallel or substantially parallel and is symmetric or substantially symmetric with respect to a straight line passing through the upper end portion of the communicating portion, and the communicating portion is covered by two covering members, one covering member and the other covering member are: In the communication part, the parts face each other.

  According to this shutter device, each of the two cover members has a cover portion that covers a part of the communication portion and a protruding portion that protrudes from the communication portion, and both of the two cover members are included in the communication portion. The shape of the communication residual portion, which is a portion excluding the portion covered by the covering portion of one covering member, and the shape of the protruding portion of the other covering member are parallel or substantially parallel to the axial direction of the winding shaft. Since it is symmetrical or substantially symmetric with respect to the straight line passing through the upper end of the communicating portion, when the shutter curtain is wound around the winding shaft, both of the two covering members overlap with the curtain body. The protruding part of one cover member and the shape of the protruding part are parallel or substantially parallel to the axial direction of the take-up shaft and are symmetrical or substantially symmetrical with respect to a straight line passing through the upper end of the communicating part. And one cover member And communicating remainder covered is, so that the overlapping shaft diameter direction of the winding shaft. That is, when the shutter curtain is wound around the winding shaft, a maximum of approximately three curtain bodies overlap in the axial direction of the winding shaft.

  For this reason, according to the present invention, of the shutter curtain winding diameter when the shutter curtain is wound and stored on the winding shaft, two covering members are provided, and the winding diameter of the portion is the same as that of the conventional shutter device. Thus, the diameter of the shutter curtain on the winding shaft can be made substantially uniform in the axial direction of the winding shaft without using a special member such as a winding diameter adjusting member. It becomes like this.

  Further, according to this shutter device, when the communication portion is covered by the two covering members, the one covering member and the other covering member are partly facing each other at the communication portion. Compared with the case where the cover member and the other cover member do not face each other at the communication portion, the sealing performance of the communication portion can be improved.

  In the present invention, the communication portion formed in the curtain body may have various shapes such as a square, a rectangle, a triangle, a trapezoid, a home base shape, an inverted home base shape, a circle, an ellipse, and a semicircle, and is optional. However, it is generally a square shape having an upper side and a lower side, such as a square or a rectangle.

  Further, in the present invention, each of the two covering members covering the communication portion includes a shape of a communication residual portion which is a portion excluding a portion covered by the cover portion of one cover member of the communication portion, and the other As long as the shape of the protruding portion of the cover member is parallel or substantially parallel to the axial direction of the winding shaft and has a shape that is symmetric or substantially symmetric with respect to a straight line passing through the upper end of the communicating portion Is optional.

  In the above invention, as an example of a measure for making the winding diameter of the shutter curtain in the winding shaft substantially uniform in the axial direction of the winding shaft, the communication portion has a shape having an upper side and a lower side, and the communication portion The upper side and the lower side are parallel or substantially parallel to the axial direction of the winding shaft, and the shape of the two covering members is a straight line connecting the midpoint of the upper side of the communicating portion and the midpoint of the lower side of the communicating portion. When the communication portion is covered with two covering members, the hypotenuses of the two covering members intersect at the midpoint of the upper side of the communication portion or near the upper portion of the midpoint. What is supposed to be.

  According to this, the communication part has a shape having an upper side and a lower side, and the upper side and the lower side of the communication part are parallel or substantially parallel to the axial direction of the winding shaft, and the shape of the two covering members is the communication part. Since it is a right triangle that is symmetrical or substantially symmetric with respect to a straight line that connects the midpoint of the upper side and the midpoint of the lower part of the communication part, one of the communication parts covers both of the two cover members. The shape of the communication remaining portion, which is a portion excluding the portion covered by the cover portion of the member, and the shape of the protruding portion of the other cover member are parallel or substantially parallel to the axial direction of the take-up shaft, and the communication portion In this case, the shape of the communication residual portion and the protruding portion of the covering member is a right triangle.

  For this reason, when the shutter curtain is wound around the winding shaft, both of the two covering members having a right triangle shape that is symmetrical or substantially symmetrical to each other have a right triangle shape that overlaps the curtain body. The protruding portion of the cover member and the shape of the protruding portion are parallel or substantially parallel to the axial direction of the take-up shaft and are symmetrical or substantially symmetrical with respect to a straight line passing through the upper end of the communicating portion. The communication residual portion covered with one of the covering members having a right triangle shape overlaps in the axial direction of the take-up shaft. Therefore, when the shutter curtain is wound around the take-up shaft and stored. Of the winding diameter of the shutter curtain, the winding diameter of the portion where the two covering members are provided is smaller than that of the conventional shutter device.

  Further, according to this, when the communicating portion is covered by two covering members, the oblique sides of the two covering members intersect at the midpoint of the upper side of the communicating portion or near the upper portion of the midpoint. It will be covered with two covering members. At this time, there is no portion where the two covering members and the curtain body overlap, or only a small area near the midpoint of the upper side of the communicating portion. For this reason, the influence which it has on the winding diameter of the part in which the two cover members are provided among the winding diameters of the shutter curtain at the time of winding up and accommodating the shutter curtain on a winding shaft becomes smaller.

  In the present invention described above, the length of the lower side of each of the two covering members may be the same as or substantially the same as the length of the lower side of the communicating portion, and is shorter than the length of the lower side of the communicating portion. It may be optional.

  When the length of the lower side of each of the two covering members is the same as or substantially the same as the length of the lower side of the communicating portion, the sealing property of the communicating portion when the communicating portion is covered by the two covering members is Since it becomes higher, it is more preferable that the length of the lower side of each of the two covering members is the same as or substantially the same as the length of the lower side of the communicating portion.

  In the present invention, as another example of a measure for enabling the winding diameter of the shutter curtain on the winding shaft to be substantially uniform in the axial direction of the winding shaft, the communication portion has a shape having an upper side and a lower side, and the communication portion The upper side and the lower side are parallel or substantially parallel to the axial direction of the winding shaft, and the shape of the two covering members is a straight line connecting the midpoint of the upper side of the communicating portion and the midpoint of the lower side of the communicating portion. The trapezoid is symmetrical or substantially symmetrical with respect to each other, and the length of the lower side of each of the two covering members is shorter than the length of the lower side of the communicating portion, and the length of the upper side of one of the covering members is the lower side of the communicating portion. The length is the same as or substantially the same as the length excluding the length of the lower side of the other covering member, and when the communicating portion is covered by two covering members, the oblique sides of the two covering members are The middle point of the upper side or the one near the upper part of the middle point .

  According to this, the communication part has a shape having an upper side and a lower side, and the upper side and the lower side of the communication part are parallel or substantially parallel to the axial direction of the winding shaft, and the shape of the two covering members is the communication part. The trapezoid is symmetric or substantially symmetric with respect to a straight line connecting the midpoint of the upper side and the midpoint of the lower side of the communication part. The length of the lower side of each of the two covering members is the lower side of the communication part. The length of the upper side of one cover member is shorter than the length, and is the same as or substantially the same as the length of the lower side of the communicating portion minus the length of the lower side of the other cover member. For both of the covering members, the shape of the communication remaining portion, which is the portion of the communicating portion excluding the portion covered by the covering portion of one covering member, and the shape of the protruding portion of the other covering member are: Symmetrical or substantially parallel to a straight line that is parallel or substantially parallel to the axial direction of the handle and passes through the upper end of the communicating portion It referred and becomes the shape of the protruding portion of the member covers the communicating remainder of this case, both the trapezoid.

  For this reason, when the shutter curtain is wound around the winding shaft, one of the two covering members having trapezoidal shapes that are symmetrical or substantially symmetrical to each other has one trapezoidal shape that overlaps the curtain body. The protruding part of the member and the shape of the protruding part are parallel or substantially parallel to the axial direction of the take-up shaft and are symmetrical or substantially symmetrical with respect to a straight line passing through the upper end of the communicating part, and are trapezoidal. The communication remaining portion covered by one of the covering members having the shape of the above overlaps in the axial diameter direction of the winding shaft, so that the shutter curtain winding diameter in the winding shaft is the axis of the winding shaft. Similar to an example of a measure for making the direction substantially uniform depending on the direction, two covering members are provided out of the winding diameter of the shutter curtain when the shutter curtain is wound around the winding shaft and stored. Winding diameter of the portion are becomes smaller ones compared to that of conventional shutter device.

  Further, according to this, when the communicating portion is covered by two covering members, the oblique sides of the two covering members intersect at the midpoint of the upper side of the communicating portion or near the upper portion of the midpoint. It will be covered with two covering members. At this time, there is no portion where the two covering members and the curtain body overlap, or only a small area near the midpoint of the upper side of the communicating portion. For this reason, the shutter curtain is wound around the take-up shaft and stored in the same manner as one example of a measure for enabling the winding diameter of the shutter curtain on the take-up shaft to be substantially uniform in the axial direction of the take-up shaft. Of the winding diameter of the shutter curtain at that time, the influence on the winding diameter of the portion where the two covering members are provided is less.

  In the present invention, since the two covering members cover the communication portion so as to be openable and closable, the opening / closing center portion of each of the two covering members is attached to the curtain body. It may be freely attached to and detached from the main body, may not be removable from the curtain main body, and is optional.

  Here, the attachment means for attaching and detaching each opening / closing center part to the curtain main body may be attachment by magnet, attachment by hook, attachment by fastener, rail-shaped female occlusion It may be attached by a so-called hook-and-loop fastener by engagement with a male bite, or may be attached by a so-called Velcro-type fastener by engaging a hook-shaped male engagement element and a pile-shaped female engagement element, Attachment by fastening using bolts, nuts, screws or the like, or a combination of these may be used, and is optional.

  In addition, the attachment means for making each opening / closing center part detachable from the curtain body may be attachment by sewing, attachment by adhesion, attachment by welding, or attachment by a combination of these. Well, optional.

  When each open / close center part is detachably bonded from the curtain body, the sealing of the communication part when the two cover members cover the communication part becomes high. Occurrence of a situation where the covering member falls off the curtain body can be prevented.

  In the present invention, each of the two covering members is attached to the curtain body, but each covering member may be attached to and detached from the curtain body, and cannot be removed from the curtain body. It may be optional.

  When each of the two covering members is attached to and detached from the curtain body, it is damaged when at least one of the two covering members is damaged or soiled. Since only the covering member in which the stain or the like has occurred can be removed from the curtain body, the operation of replacing the covering member in which the damage or the stain has occurred with a replacement covering member becomes easy. For this reason, the effort and cost concerning the maintenance of a curtain main body can be reduced.

  As described above, in the present invention, when the communication portion is covered by the two covering members, one cover member and the other cover member partially face each other in the communication portion. At least some of the portions where the two covering members face each other may be merely facing each other, and may be freely engaged / disengaged by the engaging / disengaging means. It is.

  When at least some of the portions where the two covering members face each other are detachable from each other by the engaging / disengaging means, the communicating portion is covered by the two covering members The communication section has a higher sealing performance.

  In addition, when a human tries to pass through the communicating portion, the human easily releases the state in which at least some of the portions where the two covering members face each other are engaged by the engaging / disengaging means. Thereafter, a human can pass through the communicating portion by opening the communicating portion by turning the ends of the two covering members.

  The engagement / disengagement means here may be a magnet, a hook, a fastener, or a so-called engagement between a rail-shaped female bite and a male bite. A hook-and-loop male engagement element and a pile-shaped female engagement element may be used, so-called Velcro-type fasteners may be used, and fasteners such as rivets, bolts, nuts, and screws may be attached. It may be due to the used fastening or the like, or may be a combination thereof, and is arbitrary.

  In addition, the place where the engagement / disengagement means is provided in the portion where the two covering members face each other is arbitrary, but in order to further improve the sealing performance of the communication portion, the engagement / disengagement means includes the two covering members. More preferably, it is provided at the periphery of the portions facing each other.

  In the present invention described above, the curtain body is composed of a main member in which an opening is formed and an auxiliary member that covers a part of the opening of the main member. You may make it become a part except the part covered with the auxiliary member among the opening parts of a member. In this case, the auxiliary member may be attached to and detached from the main member, or may not be removable from the main member, and is optional.

  Here, the attachment means for attaching and detaching the auxiliary member to the main member may be attached by a magnet or by a hook, similar to the relationship between each of the two covering members and the curtain body. It may be attached, it may be attached by a fastener, or it may be attached by a so-called hook-and-loop fastener by engagement between a rail-shaped female bite and a male bite, and a hook-shaped male engagement element and a pile-shaped female engagement element It may be attached by so-called velcro fasteners by engagement, or may be attached by fastening using fasteners such as rivets, bolts / nuts, screws, etc., or a combination of these may be used. It is.

  Further, the attachment means for making the auxiliary member non-removable from the main member may be attachment by sewing or attachment by adhesion, similar to the relationship between each of the two covering members and the curtain body, Attachment by welding may be sufficient, and attachment by what combined these may be sufficient, and it is arbitrary.

  When the auxiliary member can be attached to and detached from the main member, the auxiliary member alone is damaged or damaged as in the relationship between the two covering members and the curtain body. In this case, since only the auxiliary member that has been damaged, soiled, etc. can be removed from the main member, the operation of replacing the auxiliary member that has been damaged, soiled, etc. with an auxiliary member for replacement becomes easy. For this reason, the effort and cost concerning the maintenance of a curtain main body can be reduced.

  Further, as described above, when a human tries to pass through the communication portion, the human can pass through the communication portion by opening the communication portion by turning the ends of the two covering members. However, when the auxiliary member is attached to and detached from the main member, the open communication portion can be further expanded by turning the end of the auxiliary member further. This allows many people to pass through this communication section at once.

  Note that the number of auxiliary members that cover the opening of the main member may be only one or may be plural.

  The portion where the auxiliary member covers the opening of the main member may be the upper portion of the opening, the lower portion of the opening, the right portion of the opening, or the left portion of the opening. The portion may be a combination and is optional.

  The present invention can be applied to a shutter device for any application as long as the communicating portion is provided in the curtain body of the shutter curtain. As an example, there is a disaster prevention shutter device for forming a disaster prevention section when a space is partitioned by a shutter curtain closing operation. Another example is an entrance / exit shutter device for opening and closing the entrance / exit of a building with a shutter curtain. Here, the shutter device for disaster prevention includes an elevator shutter device in which the shutter curtain closes between the elevator and the elevator hall.

  In the present invention, the shutter curtain may be formed of a screen type formed of a thin member, or may be formed of a member such as a metal material other than the screen type such as a slat or a panel. It may also be formed by combining these.

  In the case where the present invention is applied to a shutter device for disaster prevention, the shutter curtain is required to be formed of a material having fire resistance, heat shielding property, smoke shielding property, waterproof property, etc. As long as it has properties, etc., it may be a screen type formed of a thin member such as a cloth or a synthetic resin, or formed of a member such as a metal material other than the screen type such as a slat or a panel. It may be a thing, and what was formed combining these may be used.

  In addition, when the present invention is applied to an entrance / exit shutter device, the shutter curtain is not necessarily required to be formed with fire resistance or the like, and the shutter curtain is thin such as cloth or synthetic resin. It may be a screen type formed of members, may be formed of a member such as a metal material other than the screen type such as a slat or a panel, or may be formed by combining these.

  In the present invention, the number of communication portions provided in the curtain body may be only one or a plurality, and may be arbitrary. However, a plurality of communication portions are formed at equal intervals in the curtain body, and the plurality of communication portions are formed. When each part is covered with two covering members, the winding diameter of the shutter curtain on the winding shaft can be made substantially uniform in the axial direction of the winding shaft.

  In addition, by forming a plurality of communication portions in the curtain body, when a situation occurs where a person tries to pass through the communication portion, many people can pass through the plurality of communication portions at a time.

  In the present invention, the communication portion formed on the curtain body may be provided such that the lower end portion is along the distal end portion of the curtain body in the closing direction of the shutter curtain, and the lower end portion is the distal end portion of the curtain body in the closing direction of the shutter curtain. May be provided so as to be separated from each other.

  In the present invention, when the communication portion is covered with two covering members so that the oblique sides of the two covering members just intersect at the midpoint of the upper side of the communication portion, the two covering members, the curtain body, The overlapping part is the smallest.

  In the present invention, the communication part is mainly used for emergency exits and exits used in emergency evacuation such as when a fire breaks out. Entry / exit ports used to pass through, or just a sight window that does not presuppose the entry / exit of people or objects (for example, in the case of a shutter device for disaster prevention, smoke to check the situation beyond the shutter curtain) To confirm the occurrence status of fire and the progress of fire through the shutter curtain). In addition, when a communication part is used as an entrance / exit, not only the case where entry / exit and passage from both directions are possible but also the case where entry / exit only in one direction can be performed are included.

  In the present invention, the moving direction of the shutter curtain may be a vertical direction, a horizontal direction, an oblique direction that forms an angle with respect to the vertical direction, or a direction in which these are combined.

  According to the present invention, the winding diameter of the shutter curtain on the winding shaft can be made substantially uniform in the axial direction of the winding shaft without using a special member such as a winding diameter adjusting member.

  EMBODIMENT OF THE INVENTION Below, the form for implementing this invention is demonstrated based on drawing. The shutter device according to the embodiment described below is a shutter device 1 for disaster prevention installed to form a disaster prevention zone in the indoor space 11. First, the overall structure of the disaster prevention shutter device 1 will be described with reference to FIG.

  The disaster prevention shutter device 1 partitions the indoor space 11 by the closing operation of the shutter curtain 21. A horizontal winding shaft 2 is rotatably supported by a pair of left and right brackets 3 at an upper portion of the indoor space 11, for example, in a ceiling back space partitioned by an indoor space and a ceiling member. The left and right end portions of the shutter curtain 21 to which the upper end portion, that is, the end portion on the winding shaft 2 side is coupled, are secured to the inside of the left and right guide rails 4 provided in the building housing 8 such as columns and walls. It is slidably inserted while being prevented from falling off. The shutter curtain 21 includes a curtain body 22 and a seat plate 41 provided at the lower end of the curtain body.

  A screen-type shutter curtain 21 in which all or most of the curtain body 22 is formed of a thin material having fire resistance and smoke resistance by a glass cloth or a silica cloth coated and / or impregnated with a fireproof paint or the like. It is wound around the winding shaft 2 in normal times. The take-up shaft 2 and the left and right brackets 3 are incorporated in the shutter case 7.

  In order to partition the indoor space 11, the shutter curtain 21 is unwound by forward rotation of the winding shaft 2, and the closing operation of the shutter curtain 21 is performed while being guided by the guide rail 4.

  An opening / closing machine 5 having a motor and a brake is attached to one bracket 3 of the pair of left and right brackets 3, and the opening / closing machine 5 is connected to a power transmission means 6 including a winding shaft 2, a chain, a sprocket, and the like. Are connected. When a manual lever (not shown) is operated due to the occurrence of a fire or the like, or a sensor (not shown) detects smoke or heat and this detection signal is sent to the control device of the switch 5, the brake of the switch 5 is released. Accordingly, the shutter curtain 21 performs a closing operation of lowering while rotating the winding shaft 2 by its own weight including the weight of the seat plate 41, and the seat plate 41 comes into contact with the floor 10 which is the counterpart member, thereby releasing the shutter curtain 21. As a result, the fire curtain is formed in the indoor space 11 by the shutter curtain 21.

  When a switch (not shown) is operated, the motor of the switch 5 is driven, whereby the shutter curtain 21 is wound around the winding shaft 2 by the rotation of the winding shaft 2, and the shutter curtain 21 opens.

  In order to prevent smoke generated by a fire from flowing into the opposite space partitioned by the shutter curtain 21, the inside of the guide rail 4 into which the left and right ends of the shutter curtain 21 are inserted, and the shutter curtain 21 enter and exit. A smoke shielding member (not shown) is incorporated in each of the lintel portions of the shutter case 7.

  In addition, the covering member which covers the communicating part formed in the curtain main body 22 to be described later is a glass cloth in which all or most of the covering member is coated and / or impregnated with a fireproof paint or the like, similar to the curtain main body 22. Alternatively, it is a screen type formed of a thin member having fire resistance and smoke resistance by silica cloth.

  1 and 2 show a first embodiment of the present invention, and FIG. 1 has a shutter curtain 21 that partitions an indoor space 11 by a closing operation and is wound around and accommodated on a winding shaft 2. The shutter curtain 21 includes a curtain main body 22 and a communication portion 23 that is formed in the central portion or the substantially central portion of the curtain main body 22 and communicates between the indoor spaces 11 partitioned by the shutter curtain 21. The covering member 24 that covers the communication portion 23 on the front surface of FIG. 1 in the curtain body 22 and the covering member 25 that covers the communication portion 23 on the back surface of FIG. 1 in the curtain body 22. 1 shows an overall front view of the shutter device 1 for use.

  As illustrated in FIG. 1, the covering member 24 includes a covering portion 24 </ b> A that covers a part of the communication portion 23, and a protruding portion 24 </ b> B that protrudes from the communication portion 23. Similarly, the covering member 25 includes a covering portion 25 </ b> A that covers a part of the communication portion 23 and a protruding portion 25 </ b> B that protrudes from the communication portion 23.

  The shape of the communication portion 23 has an upper side 27 and a lower side 26 that are parallel or substantially parallel to the axial direction of the winding shaft 2, and a left side 28 and a right side 29 that are perpendicular or substantially perpendicular to the axial direction of the winding shaft 2. It is a rectangle having.

  The shape of the two covering members 24 and 25 is a right triangle that is symmetric or substantially symmetric with respect to a straight line 47 that connects the midpoint 27M of the upper side 27 of the communication portion 23 and the midpoint 26M of the lower side 26 of the communication portion 23. When the communication portion 23 is covered by the two covering members 24 and 25, the oblique side 31 of the one covering member 24 and the oblique side 33 of the other covering member 25 are the midpoint 27M of the upper side 27 of the communicating portion 23. At the intersection 34 in the vicinity of the upper part.

  Of the communication portion 23, the shape of the communication residual portion 23 </ b> X that is a portion excluding the portion covered by the cover portion 24 </ b> A of the cover member 24 and the shape of the protruding portion 25 </ b> B of the cover member 25 are the axis of the winding shaft 2. It is symmetric or substantially symmetric with respect to the upper side 27 of the communication portion 23 that is parallel or substantially parallel to the direction and is a straight line passing through the upper end portion of the communication portion 23. Similarly, the shape of the communication residual portion 23Y that is a portion of the communication portion 23 excluding the portion covered by the cover portion 25A of the cover member 25 and the shape of the protruding portion 24B of the cover member 24 are the windings. It is symmetric or substantially symmetric with respect to the upper side 27 of the communication portion 23, which is parallel to or substantially parallel to the axial direction of the spindle 2 and passes through the upper end portion of the communication portion 23.

  The communication part 23 is covered with two covering members 24, 25, and one part of the one covering member 24 and the other covering member 25 face each other in the communication part 23. Are formed with an overlapping portion 43 having a substantially isosceles triangle shape in which part of the covering member 24 and the covering member 25 face each other.

  The covering member 24 and the curtain main body 22 are sewn in a non-removable manner by a sewing portion 35 provided along the height 30 of the three sides of the covering member 24. The communication part 23 is opened and closed freely with the wearing part 35 as the opening / closing center part.

  Similarly, the covering member 25 and the curtain main body 22 are sewn in a non-removable manner by a sewing portion 36 provided along the height 32 of the three sides of the covering member 25. Reference numeral 25 is a cover for opening and closing the communication portion 23 with the sewing portion 36 as an opening / closing center portion.

  As shown in FIG. 1, in a state where the communication portion 23 is covered by the two covering members 24, 25, the portion where the curtain body 22 and the protruding portion 24 </ b> B of the covering member 24 face each other is the curtain body 22 and Two thin members forming the covering member 24 are overlapped, while the protruding portion 24B of the covering member 24 is symmetrical or substantially symmetric with respect to the upper side 27 of the communicating portion 23 that is a straight line passing through the upper end portion of the communicating portion 23. The communication remaining portion 23 </ b> Y that is symmetric is not covered by the other covering member 25, but is covered by only one thin member that forms the covering member 24.

  Similarly, in the state where the communication portion 23 is covered by the two covering members 24 and 25, the portions where the curtain body 22 and the protruding portion 25 </ b> B of the covering member 25 face each other are the curtain body 22 and the covering member 25. On the other hand, the cover member 25 is symmetrical or substantially symmetric with respect to the upper side 27 of the communication portion 23, which is a straight line passing through the upper end portion of the communication portion 23. The communication remaining portion 23 </ b> X is not covered with the other covering member 24, but is covered with only one thin member forming the covering member 25.

  Further, in the sewing part 35 in which the opening / closing center part of the covering member 24 is sewn to the curtain body 22 so as not to be detached, and in the vicinity thereof, two thin members forming the curtain body 22 and the covering member 24 overlap each other. Similarly, the opening / closing center portion of the cover member 25 is sewn to the curtain body 22 so as not to be removable, and the vicinity thereof is a thin member that forms the curtain body 22 and the cover member 25. Is in a state where two sheets overlap.

  As shown in FIG. 1, in the communication portion 23, the upper side of the communication portion 23, which is a straight line passing through the upper end portion of the communication portion 23, is the overlapping portion 43 in which a part of the covering member 24 and the covering member 25 face each other. A portion 46 having a substantially inverted isosceles triangle shape in the curtain body 22 that is symmetric or substantially symmetric with respect to 27 does not overlap any of the two covering members 24 and 25.

  Therefore, as shown in FIG. 1, when the communication portion 23 is covered with the two covering members 24 and 25, the curtain body 22 and the three thin members forming the two covering members 24 and 25 overlap. Is a substantially triangular portion in the vicinity of the upper portion of the middle point 27M of the upper side 27 of the communication portion 23 in the curtain body 22.

  As described above, the communication portion 23 is covered with the two cover members 24 and 25, and one cover member 24 and the other cover member 25 are partly facing each other in the communication portion 23. In the communication portion 23, an overlapping portion 43 having a substantially isosceles triangle shape in which a part of the covering member 24 and the covering member 25 face each other is formed.

  Of the overlapping portion 43, a portion along the upper half or substantially upper half of the oblique side 45 on the right side of the overlapping portion 43 is provided with a Velcro fastener 38 as an engaging / disengaging means. The portions along the upper half or the substantially upper half of 45 can be engaged and disengaged by the Velcro fastener 38.

  Similarly, in the overlapping portion 43, a portion along the upper half or substantially upper half of the left oblique side 44 of the overlapping portion 43 is provided with a Velcro fastener 40 that is an engagement / disengagement means. The portions along the upper half or substantially upper half of the left hypotenuse 45 are freely detachable by the Velcro fastener 40.

  Of the portion where the protruding portion 24B of the covering member 24 and the curtain body 22 face each other, the portion along the upper quadrant or substantially upper quadrant of the oblique side 31 of the covering member 24 is a so-called engagement / disengagement means. A Velcro fastener 37 is provided, and the curtain main body 22 and a portion along the upper quadrant or substantially upper quadrant of the oblique side 31 of the covering member 24 in the protruding portion 24B can be freely engaged and disengaged by the Velcro fastener 37. It has become.

  Similarly, a portion of the cover member 25 where the protruding portion 25B and the curtain main body 22 face each other has a Velcro fastener on a portion along the upper quadrant or substantially upper quadrant of the oblique side 33 of the cover member 25. 39 is provided, and the curtain main body 22 and the portion along the upper quadrant or substantially upper quadrant of the oblique side 33 of the covering member 25 in the protruding portion 25B can be engaged and disengaged by the Velcro fastener 39. .

  As described above, the Velcro fastener 37 is formed in the upper quadrant or substantially upper quadrant of the hypotenuse 31 of the covering member 24 in the portion where the protruding portion 24B of the covering member 24 and the curtain body 22 face each other. On the other hand, the Velcro fastener 40 is provided on the left half of the hypotenuse 44 on the left side of the overlapping portion 43 where the cover member 24 and the cover member 25 in the communication portion 23 face each other. Since it is provided along the upper half, the Velcro fastener 37 and the Velcro fastener 40 overlap in the axial direction of the winding shaft 2 when the shutter curtain 21 is wound around the winding shaft 2. There is no.

  Similarly, the Velcro fastener 39 is a portion along the upper quadrant or substantially upper quadrant of the oblique side 33 of the cover member 25 in the portion where the protruding portion 25B of the cover member 25 and the curtain body 22 face each other. The velcro fastener 38 is provided along the upper half or substantially the upper half of the oblique side 45 on the right side of the overlapping portion 43 where a part of the covering member 24 and the covering member 25 in the communication portion 23 face each other. Since the shutter curtain 21 is wound around the winding shaft 2, the Velcro fastener 39 and the Velcro fastener 38 do not overlap in the axial direction of the winding shaft 2.

  When the shutter curtain 21 is in a fully closed state, for example, when a person in the space on the near side in FIG. 1 tries to pass through the communication portion 23 from the near side in FIG. 1 to the far side in FIG. A human may turn up the lower end portion of the covering member 24. Thereby, since the engagement state of the Velcro fasteners 38 and 40 holding the engagement state between the cover portion 24A of the cover member 24 and the cover portion 25A of the cover member 25 is released, after this, A seat plate is formed by pushing the cover portion 25A of the cover member 25 covering the communication portion 23 on the back side of FIG. 1 in the curtain body 22 in the back direction of FIG. 1 or turning up the lower end portion of the cover portion 25A. 41, the communication part 23 can be passed through.

  FIG. 2 is a diagram illustrating a state before the communication portion 23 of the curtain body 22 is covered with the two covering members 24 and 25. Hereinafter, the location where the aforementioned Velcro fasteners 37, 38, 39, and 40, which are engaging and disengaging means, and the structure of the Velcro fasteners 37, 38, 39, and 40 will be described.

  As described above, when the communication portion 23 is covered by the two covering members 24 and 25, the one covering member 24 and the other covering member 25 face each other in the communication portion 23, and the communication portion 23, an overlapping portion 43 having a substantially isosceles triangle shape in which part of the covering member 24 and the covering member 25 face each other is formed.

  In the portion along the upper half or the substantially upper half of the oblique side 45 on the right side of the overlap portion 43 in the overlap portion 43, one engagement element of the Velcro fastener 38 is provided on the front surface of FIG. A pile-shaped female engagement element is continuously provided, and a hook-shaped male engagement element, which is the other engagement element of the Velcro-type fastener 38, is connected to the surface of the cover member 24 on the back side of the sheet of FIG. The portions along the upper half or the substantially upper half of the right side of the overlapping portion 43 can be freely engaged and disengaged by the engagement and release of these two engagement elements.

  Similarly, in the portion along the upper half or the substantially upper half of the oblique side 44 on the left side of the overlapping portion 43 in the overlapping portion 43, the surface of the covering member 25 on the near side in FIG. A pile-shaped female engagement element, which is one engagement element, is continuously provided, and a hook-shaped male element, which is the other engagement element of the Velcro-type fastener 40, is provided on the back surface of the cover member 24 in FIG. Engagement elements are provided in series, and by engaging and disengaging these two engagement elements, the portions along the upper half or substantially upper half of the left side of the overlapping portion 43 are disengaged. Be free.

  Further, in the portion where the protruding portion 24B of the covering member 24 and the curtain main body 22 face each other, in the portion along the upper quadrant or the substantially upper quadrant of the oblique side 31 of the covering member 24, the curtain main body 22 shown in FIG. A pile-shaped female engagement element which is one engagement element of the Velcro fastener 37 is continuously provided on the front surface, and the back surface of FIG. A hook-shaped male engagement element, which is the other engagement element, is continuously provided. By engagement and release of the two engagement elements, the curtain body 22 and the covering member 24 at the protruding portion 24B are covered. The portion along the upper quadrant or the substantially upper quadrant of the hypotenuse 31 can be freely engaged and disengaged.

  Similarly, in a portion along the upper quadrant or substantially upper quadrant of the oblique side 33 of the covering member 25 in the portion where the protruding portion 25B of the covering member 25 and the curtain main body 22 face each other, in the curtain main body 22 A pile-shaped female engagement element, which is one engagement element of the Velcro fastener 39, is continuously provided on the back surface of FIG. 2, and the front surface of FIG. A hook-shaped male engagement element, which is the other engagement element of the fastener 39, is provided in series. The engagement between the two engagement elements and the release of the engagement result in covering the curtain body 22 and the protruding portion 25B. The part along the upper quadrant or substantially the upper quadrant of the hypotenuse 33 of the member 25 is detachable.

  In the above embodiment, the shape of the communication residual portion 23X that is a portion of the communication portion 23 excluding the portion covered by the cover portion 24A of the one cover member 24 and the protruding portion 25B of the other cover member 25 are included. The shape of is parallel or substantially parallel to the axial direction of the winding shaft 2 and is symmetric or substantially symmetric with respect to the upper side 27 that is a straight line passing through the upper end portion of the communication portion 23. Of the communication portion 23, the shape of the communication residual portion 23Y which is a portion excluding the portion covered by the cover portion 25A of the one cover member 25 and the shape of the protruding portion 24B of the other cover member 24 are taken up. It is symmetric or substantially symmetric with respect to the upper side 27 which is a straight line that is parallel or substantially parallel to the axial direction of the shaft 2 and passes through the upper end portion of the communication portion 23.

  For this reason, when the shutter curtain 21 is wound around the winding shaft 2, the protruding portion 24B of the covering member 24 and the shape of the protruding portion 24B are symmetrical or substantially symmetrical with respect to the upper side 27 of the communicating portion 23. The communication residual portion 23Y covered by the covering member 24 overlaps in the axial direction of the winding shaft 2, and similarly, the protruding portion 25B of the covering member 25 and the protruding portion The shape of the portion 25 </ b> B is a shape that is symmetrical or substantially symmetric with respect to the upper side 27 of the communication portion 23, and the communication residual portion 23 </ b> X covered with the covering member 25 is arranged in the axial direction of the winding shaft 2. Will overlap. That is, when the shutter curtain 21 is wound around the winding shaft 2, a maximum of approximately three curtain bodies 22 overlap in the axial diameter direction of the winding shaft 2.

  In the conventional shutter curtain device described in Patent Document 1 described above, the two cover members cover the entire communication portion on one surface and the other surface of the curtain body, and the two communication portions are the two communication portions. When covered with the covering member, the two covering members overlap each other at all the communication portions, and the two covering members sewn on the curtain body are the two covering members. And one curtain body overlap each other, so when the shutter curtain is wound around the winding shaft, a maximum of approximately five curtain bodies overlap in the axial direction of the winding shaft. .

  Therefore, according to the present embodiment, of the winding diameter of the shutter curtain 21 when the shutter curtain 21 is wound around the winding shaft 2 and stored, the two covering members 24 and 25 are provided, and the winding diameter of the portion is Therefore, the winding diameter of the shutter curtain 21 on the winding shaft 2 can be reduced without using a special member such as a winding diameter adjusting member. The axial direction can be made substantially uniform.

  In addition, according to the present embodiment, the sewing portions 35 and 36 that are the opening and closing center portions of the two covering members 24 and 25 are tightly coupled, that is, sewn to the curtain body 22 so as not to be detached. When the communication part 23 is covered with the two covering members 24 and 25, the sealing part 23 has a high sealing property, and each of the two covering members 24 and 25 is detached from the curtain body 22. The occurrence of a situation can be prevented.

  Furthermore, according to the present embodiment, when the communication portion 23 is covered by the two covering members 24 and 25, one covering member 24 and the other covering member 25 face each other at the communication portion 23. Therefore, compared with the case where one cover member 24 and the other cover member 25 do not face each other in the communication portion 23, the sealing performance of the communication portion 23 can be improved. Further, when the communication portion 23 is covered by the two covering members 24 and 25, in the communication portion 23, a part of the overlapping portion 43 where the portions of the covering member 24 and the covering member 25 face each other is a Velcro fastener. Since the engaged state is established by the movements 38 and 40, the sealing performance of the communication portion 23 is further enhanced.

  In the present embodiment, when the shutter curtain 21 is wound around the winding shaft 2, the Velcro fastener 37 and the Velcro fastener 40 do not overlap in the axial direction of the winding shaft 2, and The Velcro fastener 39 and the Velcro fastener 38 do not overlap in the axial direction of the winding shaft 2.

  Therefore, according to the present embodiment, even if the four velcro fasteners 37, 38, 39, 40 are provided on the curtain body 22 and the two covering members 24, 25, the winding of the shutter curtain 21 on the winding shaft 2 is possible. The diameter can be made substantially uniform in the axial direction of the winding shaft 2.

  In the present embodiment, the oblique side 31 of the covering member 24 and the oblique side 33 of the covering member 25 intersect each other in the vicinity of the upper portion of the middle point 27M of the upper side 27 of the communication portion 23, but with the oblique side 31 of the covering member 24. By arranging the two covering members 24 and 25 on the curtain body 22 so that the oblique sides 33 of the covering member 25 just intersect at the midpoint 27M of the upper side 27 of the communicating portion 23, the communicating portion 23 becomes 2 When covered with the individual covering members 24, 25, the overlapping portion of the curtain body 22, the covering member 24, and the covering member 25 can be eliminated, and the winding diameter of the shutter curtain 21 can be reduced. The axial direction of the spindle 2 can be made substantially uniform.

  3 and 4 show a second embodiment of the present invention, and FIG. 3 partitions the indoor space 11 by a closed chain operation and winds around the winding shaft 2 as in the first embodiment described above. The shutter curtain 21 is taken and stored, and this shutter curtain 21 is one piece that connects the curtain main body 22 and the indoor space 11 formed in the curtain main body 22 and partitioned by the shutter curtain 21. 3, a cover member 24 that covers the communication portion 23 on the front surface of FIG. 3 in the curtain body 22, and a cover member 25 that covers the communication portion 23 on the back surface of FIG. 3 in the curtain body 22. The whole front view of the shutter device 1 for disaster prevention comprised by this is shown.

In the present embodiment, the shape, size, and position of the two covering members 24 and 25 covering the communication portion 23, such as the shape, size, and position of the communication portion 23 formed in the curtain body 22. These are the same as in the first embodiment described above. Therefore, only the points in which this embodiment is different from the first embodiment described above will be described below.

  This embodiment is different from the first embodiment described above in that the opening / closing center portion of each of the two covering members 24 and 25 is not sewn to the curtain body 22 so as not to be detached.

  Among the portions where the covering member 24 and the curtain body 22 face each other, a portion along the height 30 of the three sides of the covering member 24 is provided with a velcro fastener 35 'that can be freely engaged and disengaged. The curtain main body 22 and the portion along the height 30 of the covering member 24 can be engaged and disengaged by the Velcro fastener 35 '. The cover member 24 covers the communication portion 23 so that it can be opened and closed with the location where the Velcro fastener 35 ′ is provided as an opening / closing center portion.

  In the same manner, among the portions where the covering member 25 and the curtain main body 22 face each other, the portions along the height 32 of the three sides of the covering member 25 are detachable Velcro fasteners 36 '. The curtain body 22 and the portion along the height 32 of the covering member 25 are detachable by a Velcro fastener 36 '. The cover member 25 covers the communication portion 23 so that it can be opened and closed with the location where the Velcro fastener 36 ′ is provided as the open / close center portion.

  FIG. 4 is a diagram illustrating a state before the communication portion 23 of the curtain body 22 is covered with the two covering members 24 and 25, as in FIG. 2 described above.

  As described above, in the portion along the height 30 of the covering member 24 among the portions where the covering member 24 and the curtain body 22 face each other, the surface on the near side in FIG. A pile-shaped female engagement element, which is one engagement element of the fastener 35 ′, is continuously provided, and a hook, which is the other engagement element of the Velcro fastener 35 ′, is provided on the back surface of FIG. A male engagement element in the form of a ring is connected, and the engagement between the two engagement elements and the disengagement of the two engagement elements cause the curtain body 22 and the portion along the height 30 of the covering member 24 to be disengaged. It is free.

  Similarly, in the portion along the height 32 of the covering member 25 among the portions where the covering member 25 and the curtain body 22 face each other, the surface on the back side of the curtain body 22 in FIG. A pile-shaped female engagement element that is one of the engagement elements 36 'is continuously provided, and a hook that is the other engagement element of the Velcro fastener 36' is provided on the front surface of FIG. A male engagement element in the form of a ring is provided continuously, and the engagement between the two engagement elements and the disengagement of the two engagement elements cause the curtain body 22 and the portion along the height 32 of the covering member 25 to be disengaged. It is free.

  In the present embodiment described above, unlike the first embodiment described above, the open / close center portion of each of the two covering members 24 and 25 is separated from the curtain by Velcro fasteners 35 'and 36' which are engaging / disengaging means. It can be attached to and detached from the main body 22.

  Therefore, according to the present embodiment, when at least one of the two covering members 24, 25 is damaged, soiled, or the like, only the covering member that has been damaged, soiled, or the like is used as the curtain body 22. Therefore, it is easy to replace the cover member that has been damaged or soiled with a replacement cover member. For this reason, the effort and cost concerning the maintenance of the curtain main body 22 can be reduced.

  FIG. 5 is a third embodiment of the present invention, which partitions the indoor space 11 by a closing operation and has a shutter curtain 21 that is wound and stored on the winding shaft 2. The curtain main body 22, three communication portions 123 A, 123 B, and 123 C that are formed in the curtain main body 22 and communicate with each other between the indoor spaces 11 partitioned by the shutter curtain 21, and the front side of FIG. 5 in the curtain main body 22 The three cover members 124A, 124B, and 124C that cover the three communication portions 123A, 123B, and 123C on the surface, and the three communication portions 123A, 123B, and 123C on the back surface of FIG. What shows the whole front view of the shutter device 1 for disaster prevention comprised including three cover members 125A, 125B, 125C A.

  As shown in FIG. 5, this embodiment is different from the first embodiment described above in that three communication portions 123A having the same shape and size as the communication portion 23 in the first embodiment described above, 123B and 123C are formed in the curtain main body 22 at equal intervals.

  The two covering members that respectively cover these three communicating portions 123A, 123B, and 123C have the same shape, size, and structure as the covering members 24 and 25 in the first embodiment described above. The positions where the three communicating portions 123A, 123B, 123C are covered by the two covering members are also the same as in the case of the first embodiment described above.

  In the first embodiment described above, only one communication portion 23 is formed at the central portion or the substantially central portion of the curtain body 22. However, in the above embodiment, the first embodiment described above is used. Similarly to the embodiment, one communication portion 123B is formed at the central portion or substantially the central portion of the curtain body 22, and further, the communication portion 123B is spaced apart from the communication portion 123B on both the left and right sides. Two communication parts 123A and 123C are formed respectively.

  For this reason, according to this embodiment, compared with 1st embodiment mentioned above, the axis | shaft of the winding shaft 2 of the winding diameter of the shutter curtain 21 when the shutter curtain 21 is wound up and accommodated in the winding shaft 2 is accommodated. Since the balance of the direction is further improved, the winding diameter of the shutter curtain 21 on the winding shaft 2 can be made substantially uniform in the axial direction of the winding shaft 2 without using a special member such as a winding diameter adjusting member. become.

  In addition, according to the present embodiment, since the three communication portions 123A, 123B, and 123C are formed in the curtain body 22, the shutter curtain 21 is fully closed in an emergency such as the occurrence of a fire. 2, two covering members that respectively cover these three communicating portions 123A, 123B, and 123C, even if there are many people evacuating from one space partitioned by the shutter curtain 21 to the other space. By turning up the lower end portions of the two at the same time, many people can pass through these three communicating portions 123A, 123B, 123C at the same time.

  6 and 7 show a fourth embodiment of the present invention. In the disaster-prevention shutter device 1 of the first to third embodiments described above, the curtain body has an opening. It is comprised from the main body member and the auxiliary member which covers a part of opening part of this main body member, and a communicating part becomes a part except the part covered with the auxiliary member among the opening parts of the main body member. The auxiliary member is an embodiment in which the auxiliary member can be attached to and detached from the main member.

  FIG. 6 partitions the indoor space 11 by a closing operation and has a shutter curtain 21 that is wound around and stored in the winding shaft 2. The shutter curtain 21 includes a curtain body 22 and a center of the curtain body 22. The communication portion 223 is covered with one communication portion 223 that is formed in a central portion or a substantially central portion and communicates between the indoor spaces 11 partitioned by the shutter curtain 21 and the front surface of FIG. Similarly to this, the shutter device 1 for disaster prevention is configured to include the covering member 224 and the covering member 225 that covers the communication portion 223 with the front surface of FIG. 6 in the curtain body 22. The main member 22A in which the opening 223 'is formed, and a part of the opening 223' of the main member 22A is the surface on the near side of the main member 22A in FIG. And the communication member 223 is a part of the opening 223 ′ of the main member 22A excluding the portion covered by the auxiliary member 22B. Is.

  Hereinafter, the structure of the curtain body 22 of the shutter curtain 21 of the shutter device 1 for disaster prevention according to the present embodiment will be described with reference to FIG.

  In the present embodiment, the portion where the auxiliary member 22B of the curtain body 22 faces the main member 22A of the curtain body 22 is detachable by Velcro fasteners 255, 235, 236 as engagement / disengagement means. At least a part of the portions where the two covering members 224 and 225 face each other can be engaged and disengaged by Velcro fasteners 238 and 240 which are engaging and disengaging means. At least some of the portions where the individual covering members 224 and 225 face each other are detachable from each other by Velcro fasteners 235, 236, 237, and 239 that are engaging and disengaging means.

  Further, in the present embodiment, as in the second embodiment described above, the opening / closing center portion of each of the two covering members 224 and 225 is attached to the curtain body 22 by Velcro fasteners 235 and 236 serving as engagement / disengagement means. On the other hand, it can be attached and removed.

  That is, among the portions where the covering member 224 and the curtain body 22 face each other, a portion along the height 230 of the three sides of the covering member 224 is provided with a velcro fastener 235 that can be engaged and disengaged. The portion of the curtain body 22 and the covering member 224 along the height 230 can be freely engaged and disengaged by the Velcro fastener 235. The cover member 224 covers the communication portion 23 so that it can be opened and closed with the location where the Velcro fastener 235 is provided as the open / close center portion.

  Similarly, among the portions where the covering member 225 and the curtain body 22 face each other, a portion along the height 232 of the three sides of the covering member 225 has a velcro fastener 236 that can be engaged and disengaged. The portion of the curtain body 22 and the portion along the height 232 of the covering member 225 is detachable by a Velcro fastener 236. The cover member 225 covers the communication portion 223 so that it can be opened and closed with the location where the Velcro fastener 236 is provided as the open / close center portion.

  The location where the Velcro fastener is provided and the structure of the Velcro fastener will be described later.

  The curtain body 22 has a main member 22A in which an opening 223 ′ having a horizontally long rectangular shape is formed, and the upper half or substantially upper half of the opening 223 ′ of the main member 22A is shown in FIG. 6 of the main member 22A. It is comprised from the auxiliary member 22B which has the shape of the oblong rectangle covered with the surface of this side, and the communication part 223 remove | excluded the part covered with auxiliary member 22B among opening part 223 'of main body member 22A. It has become a part.

  In this embodiment, the opening 223 'of the main member 22A of the curtain body 22 is covered with the auxiliary member 22B, so that the curtain body 22 has a structure similar to the curtain body 22 in the second embodiment described above.

  Next, the structure of the curtain main body 22 in a state where the opening 223 ′ of the main member 22A of the curtain main body 22 is covered with the auxiliary member 22B and the communication portion 223 is formed in the curtain main body 22 will be described.

  As shown in FIG. 6, the shape of the communication portion 223 has an upper side 227 and a lower side 226 that are parallel or substantially parallel to the axial direction of the winding shaft 2, and is perpendicular or substantially perpendicular to the axial direction of the winding shaft 2. This is a horizontally long rectangle having a left side 228 and a right side 229.

  The cover member 224 includes a cover part 224A that covers a part of the communication part 223, and a protruding part 224B that protrudes from the communication part 223. Similarly, the cover member 225 includes a cover part 225A that covers a part of the communication part 223, and a protruding part 225B that protrudes from the communication part 223.

  The shape of the two covering members 224 and 225 is a right triangle that is symmetric or substantially symmetric with respect to a straight line 262 that connects the midpoint 227M of the upper side 227 of the communication portion 223 and the midpoint 226M of the lower side 226 of the communication portion 223. The oblique sides 231 of one covering member 224 and the oblique sides 233 of the other covering member 225 intersect at an intersection 234 near the upper portion of the midpoint 227M of the upper side 227 of the communication portion 223.

  Of the communication portion 223, the shape of the communication residual portion 223X, which is a portion excluding the portion covered by the cover portion 224A of the cover member 224, and the shape of the protruding portion 225B of the cover member 225 are the axis of the winding shaft 2 It is symmetric or substantially symmetric with respect to the upper side 227 of the communication part 223 that is parallel or substantially parallel to the direction and is a straight line passing through the upper end of the communication part 223.

  Similarly, the shape of the communication residual portion 223Y, which is a portion of the communication portion 223 excluding the portion covered by the cover portion 225A of the cover member 225, and the shape of the protruding portion 224B of the cover member 224 are communicated with each other. It is symmetric or substantially symmetric with respect to the upper side 227 of the portion 223.

  As shown in FIG. 6, one covering member 224 and the other covering member 225 are partly facing each other in the communicating part 223, and part of both are facing each other in the communicating part 223. The overlapping portion 259 is formed. In the overlapping portion 259, two thin members forming the two covering members 224 and 225 are overlapped.

  The portion where the curtain main body 22 and the protruding portion 224B of the covering member 224 face each other is in a state where two thin members forming the curtain main body 22 and the covering member 224 are overlapped, while the protruding portion 224B of the covering member 224 is the same. The communication residual portion 223Y that is symmetric, symmetric, or substantially symmetric with respect to the upper side 227 of the communication portion 223 is not covered by the other cover member 225, and is covered by only one thin member that forms the cover member 224. It is in a broken state.

  Similarly, the portion where the curtain body 22 and the protruding portion 225B of the covering member 225 face each other is in a state where two thin members forming the curtain body 22 and the covering member 225 are overlapped, while the covering member 225 The communication remaining portion 223X that is symmetric or substantially symmetric with respect to the upper side 227 of the communication portion 223 from the protruding portion 225B is not covered by the other cover member 224, and is one thin member that forms the cover member 225 It is in the state covered only by.

  In the communication portion 223, the covering member 224 and the overlapping portion 259 in which a part of the covering member 225 face each other are substantially opposite to each other in the curtain body 22 that is symmetric or substantially symmetric with respect to the upper side 227 of the communication portion 223. The portion 22C having the shape of an isosceles triangle does not overlap the two covering members 224 and 225.

  Therefore, as shown in FIG. 6, when the communication portion 223 is covered with the two covering members 224 and 225, the curtain body 22 and the three thin members forming the two covering members 224 and 225 overlap. Is a substantially triangular portion in the vicinity of the upper portion of the middle point 227M of the upper side 227 of the communication portion 223 in the curtain body 22.

  FIG. 7 is a view showing a state before the opening 223 ′ of the main member 22A is covered with the auxiliary member 22B and a state before the communication portion 223 of the curtain body 22 is covered with the two covering members 224 and 225. First, the location where the Velcro fastener is provided and the structure of the Velcro fastener will be described in detail with reference to FIG. 7 and, if necessary, with reference to FIG.

  As shown in FIG. 7, on the front side surface of FIG. 7 of the main member 22A, a portion along the three sides of the upper side 252, the left side 253, and the right side 254 of the opening 223 ′ has a Velcro fastener as an engaging / disengaging means. The pile-shaped female type engaging element which is one engaging element of 255,235,236 is connected.

  On the other hand, in the surface on the back side of FIG. 7 in the auxiliary member 22B, a portion where the main member 22A and the auxiliary member 22B face each other, that is, a portion along the upper side 256, the left side 257, and the right side 258 of the auxiliary member 22B A hook-shaped male engagement element that is the other engagement element of the fasteners 255, 236, and 237 is continuously provided.

  In addition, in the surface of the auxiliary member 22B on the near side in FIG. 7, among the portions where the auxiliary member 22B and the covering member 224 face each other, the upper half of the oblique side 231 of the covering member 224 or the portion along the substantially upper quadrant. Is provided with a pile-shaped female engagement element, which is one engagement element of the Velcro fastener 237, and similarly to the auxiliary member 22B on the front surface of FIG. 7 in the auxiliary member 22B. Among the portions facing each other with the portion 225, a pile-shaped female engagement element that is one of the engagement elements of the Velcro fastener 239 is provided on a portion along the upper quadrant or substantially upper quadrant of the oblique side 233 of the covering member 225. Are connected.

  Further, on the front surface of FIG. 7 in the auxiliary member 22B, a pile-shaped female engagement element that is one engagement element of the Velcro fastener 235 is connected to the portion along the left side 257 of the auxiliary member 22B. Similarly, on the front side of FIG. 7 in the auxiliary member 22B, a portion along the right side 258 of the auxiliary member 22B is a pile-shaped female engagement element which is one engagement element of the Velcro fastener 236. Are connected.

  On the other hand, in the surface on the back side of FIG. 7 in the covering member 224, the portion along the upper quadrant or the substantially upper quadrant of the hypotenuse 231 of the covering member 224 out of the portions where the auxiliary member 22B and the covering member 224 face each other. A hook-shaped male engagement element, which is the other engagement element of the Velcro fastener 237, is connected to the auxiliary member 22B and the covering member 225 on the back surface of the covering member 225 in FIG. Of the cover member 225 along the upper quadrant or substantially upper quadrant of the cover member 225 is connected to a hook-shaped male engagement element that is the other engagement element of the Velcro fastener 239. It is installed.

  Further, on the surface of the cover member 224 on the back side in FIG. 7, a hook-shaped male engagement element, which is the other engagement element of the Velcro fastener 235, is connected to a portion along the height 230 of the cover member 224. Similarly, a hook-shaped male engagement element which is the other engagement element of the Velcro-type fastener 236 is provided at a portion along the height 232 of the covering member 225 on the back surface of the covering member 225 in FIG. Are connected.

  Among the portions where the auxiliary member 22B and the cover member 224 face each other on the front side surface of the auxiliary member 22B in FIG. 7, a portion along the left side 257 of the auxiliary member 22B is provided with one engagement element of the Velcro fastener 235. In the same manner as this, among the portions of the auxiliary member 22B where the auxiliary member 22B and the cover member 225 face each other, The portion along the right side 258 of the auxiliary member 22B is provided with a pile-shaped female engagement element which is one engagement element of the Velcro fastener 236.

  In the surface of the cover member 224 on the back side in FIG. 7, among the portions where the auxiliary member 22 </ b> B and the cover member 224 face each other, a portion along the upper quadrant or substantially upper quadrant of the oblique side 231 of the cover member 224 A hook-shaped male engagement element, which is the other engagement element of the type fastener 237, is continuously provided. Similarly, the auxiliary member 22B and the covering member 225 are provided on the back surface of the covering member 225 in FIG. Among the portions facing each other, a hook-shaped male engagement element, which is the other engagement element of the Velcro fastener 239, is continuously provided in a portion along the upper quadrant or substantially the upper quadrant of the oblique side 233 of the cover member 225. ing.

  As shown in FIG. 6 described above, when the communication portion 223 is covered by the two cover members 224 and 225, the cover member 224 and the cover member 225 are partially facing each other in the communication portion 223. The communicating portion 223 is formed with an overlapping portion 259 having a substantially isosceles triangular shape in which a part of the covering member 224 and the covering member 225 face each other.

  As shown in FIG. 7, in the surface on the near side of FIG. 7 in the covering member 225, a portion of the overlapping portion 259 along the upper half or substantially upper half of the hypotenuse 260 on the left side of the overlapping portion 259 shown in FIG. In addition, a pile-shaped female engagement element, which is one engagement element of the Velcro fastener 240, is continuously provided, and a portion along the substantially upper half of the oblique side 261 on the right side of the overlapping portion 259 shown in FIG. A pile-shaped female engagement element which is one engagement element of the type fastener 238 is provided continuously.

  On the other hand, in the surface on the back side of FIG. 7 in the covering member 224, the portion of the overlapping portion 259 along the upper half or substantially the upper half of the left side of the overlapping portion 259 shown in FIG. A hook-shaped male engagement element, which is the other engagement element, is provided continuously. A portion along the substantially upper half of the oblique side 261 on the right side of the overlapping portion 259 shown in FIG. A hook-shaped male engagement element which is an engagement element is continuously provided.

  Next, a method and order of assembling the shutter curtain 21 in the present embodiment will be described with reference to FIG. First, the auxiliary member 22B for covering the upper half or substantially upper half of the opening 223 ′ formed in the main member 22A of the curtain body 22 is attached to the main member 22A from the front side of FIG. 7 in the main member 22A. Thereby, the portions along the upper side 256, the left side 257, and the right side 258 of the auxiliary member 22B are engaged with each other by the Velcro fasteners 255, 235, and 236 with respect to the curtain body 22.

  Next, in order to cover the right side portion of the communication portion 223 formed in the curtain body 22 by covering the upper half or the substantially upper half of the opening 223 ′ with the auxiliary member 22B, the two covering members 224 and 225 are covered. The cover member 225 is attached to the auxiliary member 22 </ b> B and the curtain body 22 from the front side of FIG. 7 in the curtain body 22. As a result, the portion along the upper quadrant or substantially upper quadrant of the hypotenuse 233 and the portion along the upper half or substantially upper half of the height 232 of the cover member 225 are velcro fasteners 239 and 236 with respect to the auxiliary member 22B. Is engaged. Further, the portion along the substantially lower half of the height 232 in the covering member 225 is engaged with the curtain body 22 by the Velcro fastener 236.

  Finally, in order to cover the left side portion of the communication portion 223 formed on the curtain body 22 by covering the upper half or substantially upper half of the opening 223 ′ with the auxiliary member 22B, the two covering members 224 and 225 are covered. The cover member 224 is attached to the auxiliary member 22B and the curtain body 22 from the near side of the curtain body 22 in FIG. As a result, the portion along the upper quadrant or substantially upper quadrant of the oblique side 231 and the portion along the upper half or substantially upper half of the height 230 of the cover member 224 are made by the Velcro fasteners 237 and 235 with respect to the auxiliary member 22B. The engaged state is established. Further, the portion along the substantially lower half of the height 230 in the covering member 224 is engaged with the curtain body 22 by the Velcro fastener 235.

  Furthermore, at this time, in the communication portion 223, the overlapping portion 259 shown in FIG. 6 is formed, which is a portion where the two covering members 224 and 225 face each other, but the two covering members 224 and 225 are In the portion along the upper half or substantially upper half of the left side 260 of the overlapping portion 259 shown in FIG. 6 and the portion along the upper half or substantially upper half of the right side 261 of the overlapping portion 259 shown in FIG. They are engaged with each other.

  When disassembling the shutter curtain 21 once assembled, the disassembling order is reverse to the above-described assembling order. That is, first, the covering member 224 is removed from the main member 22A, the covering member 225, and the auxiliary member 22B, then the covering member 225 is removed from the main member 22A and the auxiliary member 22B, and finally the auxiliary member 22B is removed from the main member 22A. It becomes the order of removing from.

  In the present embodiment, as in the second embodiment described above, the two cover members 224 and 225 are attached to and detached from the curtain body 22 by the Velcro fasteners 235 and 236 serving as engagement / disengagement means. However, in addition to this, the auxiliary member 22B is also attached to and detached from the curtain main body 22 by Velcro fasteners 235, 236, and 255 which are engaging and disengaging means, so that only the auxiliary member 22B is attached. In the event of damage, contamination, etc., only the auxiliary member 22B that has been damaged or soiled can be removed from the curtain body 22, so that the auxiliary member 22B that has been damaged, soiled, or the like can be used as a replacement aid. The operation | work which replaces with a member becomes easy. For this reason, the effort and cost concerning the maintenance of the curtain main body 22 can be reduced more.

  Furthermore, according to the present embodiment, in the event of an emergency such as a fire, when a person who is evacuating tries to pass through the communication part 223, the two covering members 224 and 225 covering the communication part 223 After turning up the end portion, the end portion of the auxiliary member 22B is further turned up, whereby a communication portion larger than the communication portion 223 is formed in the shutter curtain 21, so that many humans can be at once. It is possible to pass through the communication part, and it is also possible for a tall person or a tall object to easily pass through the communication part.

  In the above-described embodiment, the shape of the communication residual portion 223X that is a portion of the communication portion 223 excluding the portion covered with the cover portion 224A of the one cover member 224 and the protrusion of the other cover member 225 are provided. The shape of the portion 225B is symmetric or substantially symmetric with respect to the upper side 227 that is a straight line that is parallel or substantially parallel to the axial direction of the winding shaft 2 and passes through the upper end portion of the communication portion 223. In addition, the shape of the communication residual portion 223Y that is a portion of the communication portion 223 excluding the portion covered by the cover portion 225A of the one cover member 225 and the shape of the protruding portion 224B of the other cover member 224 are: It is symmetric or substantially symmetric with respect to the upper side 227 that is parallel to or substantially parallel to the axial direction of the winding shaft 2 and passes through the upper end of the communicating portion 223.

  For this reason, when the shutter curtain 21 is wound around the winding shaft 2, the protruding portion 224B of the covering member 224 and the shape of the protruding portion 224B are symmetrical or substantially symmetrical with respect to the upper side 227 of the communicating portion 223. The communication residual portion 23Y covered by the covering member 24 overlaps in the axial direction of the winding shaft 2, and similarly, the protruding portion 225B of the covering member 225 and the protruding portion The shape of the portion 225B is a shape that is symmetric or substantially symmetric with respect to the upper side 227 of the communication portion 223, and the communication residual portion 223X that is covered by the covering member 225 extends in the axial direction of the winding shaft 2 Will overlap. That is, when the shutter curtain 21 is wound around the winding shaft 2, a maximum of approximately three curtain bodies 22 overlap in the axial diameter direction of the winding shaft 2.

  Therefore, according to this embodiment, as in the first to third embodiments described above, two of the winding diameters of the shutter curtain 21 when the shutter curtain 21 is wound around the winding shaft 2 and stored. The winding diameter of the portion where the cover members 224 and 225 are provided is smaller than that of the conventional shutter device, so that a special member such as a winding diameter adjusting member is not used. The winding diameter of the shutter curtain 21 on the winding shaft 2 can be made substantially uniform in the axial direction of the winding shaft 2.

  Further, according to the present embodiment, when the communication portion 223 is covered by the two covering members 224 and 225, in the communication portion 223, a part of the covering member 224 and the covering member 225 face each other. Since the portion is engaged by the Velcro fasteners 238 and 240, the sealing performance of the communication portion 223 is not lowered as compared with the first to third embodiments described above.

  In the present embodiment, when the shutter curtain 21 is wound around the winding shaft 2, the Velcro fastener 237 and the Velcro fastener 240 do not overlap in the axial diameter direction of the winding shaft 2, and The Velcro fastener 239 and the Velcro fastener 238 do not overlap in the axial direction of the winding shaft 2.

  Therefore, according to the present embodiment, even if the four velcro fasteners 237, 238, 239, 240 are provided on the curtain body 22 and the two covering members 224, 225, the winding of the shutter curtain 21 on the winding shaft 2 is possible. The diameter can be made substantially uniform in the axial direction of the winding shaft 2.

  In the present embodiment, the oblique side 231 of the covering member 224 and the oblique side 233 of the covering member 225 intersect each other in the vicinity of the upper portion of the midpoint 227M of the upper side 227 of the communicating portion 223. By disposing the two covering members 224 and 225 on the curtain body 22 so that the oblique sides 233 of the covering member 225 just intersect at the midpoint 227M of the upper side 227 of the communicating portion 223, the communicating portion 223 becomes 2 When covered with the individual covering members 224 and 225, the overlapping portion of the curtain body 22, the covering member 224, and the covering member 225 can be eliminated, and the winding diameter of the shutter curtain 21 can be reduced. The axial direction of the take-off shaft 2 can be made substantially uniform.

  FIG. 8 is a fifth embodiment of the present invention, and shows an embodiment in which the shapes of the two covering members that cover the communicating portion in the first embodiment described above are different. Hereinafter, the structure of the shutter curtain of the present embodiment will be described in the same manner as in the case of the first embodiment described above.

  FIG. 8 has a shutter curtain 21 which partitions the indoor space 11 by a closing operation and is wound and stored on the winding shaft 2. The shutter curtain 21 includes a curtain body 22 and a center of the curtain body 22. The communication portion 323 is covered with one communication portion 323 that is formed in a central portion or a substantially central portion and communicates between the indoor spaces 11 partitioned by the shutter curtain 21 and the front surface of FIG. FIG. 9 is an overall front view of a disaster prevention shutter device 1 that includes a covering member 324 and a covering member 325 that covers the communication portion 323 on the back surface of FIG. 8 in the curtain body 22.

  The cover member 324 includes a cover part 324A that covers a part of the communication part 323, and a protruding part 324B that protrudes from the communication part 323. Similarly, the cover member 325 includes a cover portion 325A that covers a part of the communication portion 323, and a protruding portion 325B that protrudes from the communication portion 323.

  As shown in FIG. 8, the shape of the communication portion 323 has an upper side 327 and a lower side 326 that are parallel or substantially parallel to the axial direction of the winding shaft 2, as in the first embodiment described above. It is a rectangle having a left side 328 and a right side 329 that are perpendicular or substantially perpendicular to the axial direction of the spindle 2.

  On the other hand, of the two covering members 324 and 325, the shape of the one covering member 324 is such that the upper side 349 and the lower side 348 are parallel or substantially parallel to the axial direction of the winding shaft 2, and the axial direction of the winding shaft 2. The other cover member 325 has a shape parallel to or substantially parallel to the axial direction of the take-up shaft 2. The trapezoid is formed of an upper side 351, a lower side 350, a height 332 that is perpendicular or substantially perpendicular to the axial direction of the winding shaft 2, and a hypotenuse 333.

  These two covering members 324 and 325 are symmetric with respect to a straight line 347 connecting the midpoint 327M of the upper side 327 of the communication portion 323 and the midpoint 326M of the lower side 326 of the communication portion 323.

  The lengths of the lower sides 348, 350 of the two covering members 324, 325 are both shorter than the lower side 326 of the communication portion 323, and the length thereof is approximately three-fourths of the length of the lower side 326 of the communication portion 323. It has become.

  The length of the upper side 349 of one cover member 324 is substantially the same as the length of the lower side 326 of the communication part 323 except the lower side 350 of the other cover member 325, that is, approximately one quarter of the lower side 326 of the communication part 323. It has become. Similarly, the length of the upper side 351 of the other covering member 325 is substantially the same as the length excluding the lower side 348 of the one covering member 324 from the lower side 326 of the communication portion 323, that is, the length of the lower side 326 of the communication portion 323. It is about a quarter.

  Of the communication portion 323, the shape of the communication residual portion 323 </ b> X that is a portion excluding the portion covered with the cover portion 324 </ b> A of the cover member 324 and the shape of the protruding portion 325 </ b> B of the cover member 325 are the axis of the winding shaft 2. It is symmetric or substantially symmetric with respect to the upper side 327 of the communication part 323 which is parallel or substantially parallel to the direction and is a straight line passing through the upper end of the communication part 323. Similarly, the shape of the communication residual portion 323Y which is a portion of the communication portion 323 excluding the portion covered by the cover portion 325A of the cover member 325 and the shape of the protruding portion 324B of the cover member 324 are: It is symmetric or substantially symmetric with respect to the upper side 327 of the communication part 323 which is parallel or substantially parallel to the axial direction of the shaft 2 and passes through the upper end of the communication part 323.

  The communication part 323 is covered with two cover members 324 and 325, and one part of the cover member 324 and the other cover member 325 face each other in the communication part 323, and the communication part 323. Are formed with an overlapping portion 343 having a substantially isosceles triangular shape in which a part of the covering member 324 and the covering member 325 face each other.

  As shown in FIG. 8, when the communication portion 323 is covered by the two covering members 324 and 325, the oblique sides 331 and 333 of the two covering members 324 and 325 are the midpoint of the upper side 327 of the communication portion. Crosses exactly at 327M or slightly above.

  The covering member 324 and the curtain body 22 are sewn in a non-removable manner by a sewing portion 335 provided along the height 330 of the covering member 324. The covering member 324 opens and closes the sewing portion 335. The communication part 323 is opened and closed as a central part.

  Similarly, the covering member 325 and the curtain main body 22 are sewn in a non-removable manner by a sewing portion 336 provided along the height 332 of the covering member 325, and the covering member 325 is sewn. The communication part 323 is opened and closed so as to be openable and closable with the wearing part 336 as an opening / closing center part.

  As shown in FIG. 8, in the state where the communication portion 323 is covered by the two covering members 324 and 325, the portion where the curtain body 22 and the protruding portion 324 </ b> B of the covering member 324 face each other is the curtain body 22 and The two thin members forming the covering member 324 are overlapped with each other, while the protruding portion 324B of the covering member 324 is symmetrical or substantially symmetric with respect to the upper side 327 of the communicating portion 323 that is a straight line passing through the upper end portion of the communicating portion 323. The communication remaining portion 323 </ b> Y that is symmetric is not covered by the other covering member 325, but is covered by only one thin member that forms the covering member 324.

  Similarly, in the state where the communication portion 323 is covered by the two covering members 324 and 325, the portions where the curtain body 22 and the protruding portion 325B of the covering member 325 face each other are the curtain body 22 and the covering member 325. On the other hand, the cover member 325 is symmetric or substantially symmetric with respect to the upper side 327 of the communication portion 323 which is a straight line passing through the upper end portion of the communication portion 323. The remaining communication portion 323X is not covered by the other covering member 324, but is covered by only one thin member forming the covering member 325.

  In addition, the central portion of the cover member 324 that is opened and closed is sewn to the curtain body 22 so as not to be detached, and the vicinity thereof includes a state in which two thin members forming the curtain body 22 and the cover member 324 overlap each other. Similarly, the opening / closing center portion of the cover member 325 is sewn to the curtain body 22 so that it cannot be removed, and the vicinity thereof is a thin member that forms the curtain body 22 and the cover member 325. Is in a state where two sheets overlap.

  As shown in FIG. 8, in the communication portion 323, the covering member 324 and the overlapping portion 343 where parts of the covering member 325 face each other are the upper side of the communication portion 323 which is a straight line passing through the upper end portion of the communication portion 323. A portion 346 having a substantially inverted isosceles triangle shape in the curtain body 22 that is symmetric or substantially symmetric with respect to 327 does not overlap any of the two covering members 324 and 325.

  As described above, the communication portion 323 is covered with the two cover members 324 and 325, and one cover member 324 and the other cover member 325 partially face each other in the communication portion 323. In the communication portion 323, an overlapping portion 343 having a substantially isosceles triangle shape in which a part of the covering member 324 and the covering member 325 face each other is formed.

  In the overlapping portion 343, a portion along the upper half or substantially upper half of the oblique side 345 on the right side of the overlapping portion 343 is provided with a Velcro fastener 338 that is an engagement / disengagement means, and the oblique side on the right side of the overlapping portion 343. The portions along the upper half or the substantially upper half of 345 can be freely engaged and disengaged by the Velcro fastener 338.

  Similarly, a Velcro fastener 340 that is an engagement / disengagement means is provided in a portion along the upper half or substantially upper half of the left side of the overlap portion 343 in the overlap portion 343, and the overlap portion 343 is provided. The portions along the upper half or substantially the upper half of the left oblique side 345 are freely detachable by the Velcro fastener 340.

  Of the portion where the protruding portion 324B of the covering member 324 and the curtain body 22 face each other, the portion along the upper quadrant or substantially upper quadrant of the oblique side 331 of the covering member 324 is a so-called engagement / disengagement means. A Velcro fastener 337 is provided, and the curtain body 22 and a portion along the upper quadrant or substantially upper quadrant of the oblique side 331 of the covering member 324 in the protruding portion 324B can be freely engaged and disengaged by the Velcro fastener 337. It has become.

  Similarly, a portion of the covering member 325 where the protruding portion 325B and the curtain body 22 face each other has a Velcro fastener on a portion along the upper quadrant or substantially upper quadrant of the oblique side 333 of the covering member 325. 339 is provided, and the curtain main body 22 and the portion along the upper quadrant or substantially upper quadrant of the oblique side 333 of the covering member 325 in the protruding portion 325B can be freely engaged and disengaged by the Velcro fastener 339. .

  As described above, the Velcro-type fastener 337 has an upper quadrant or a substantially upper quadrant of the hypotenuse 331 of the cover member 324 in the portion where the protruding portion 324B of the cover member 324 and the curtain body 22 face each other. On the other hand, the Velcro fastener 340 is provided in the upper half of the left side of the overlapping portion 343 where the cover member 324 and the cover member 325 in the communication portion 323 face each other, or substantially the same. Since it is provided along the upper half, the Velcro fastener 337 and the Velcro fastener 340 overlap in the axial direction of the take-up shaft 2 when the shutter curtain 21 is wound around the take-up shaft 2. There is no.

  Similarly, the Velcro fastener 339 is a portion along the upper quadrant or substantially upper quadrant of the hypotenuse 333 of the cover member 325 in the portion where the protruding portion 325B of the cover member 325 and the curtain body 22 face each other. The velcro fastener 338 is provided along the upper half or the substantially upper half of the oblique side 345 on the right side of the overlapping portion 343 where a part of the cover member 324 and the cover member 325 of the communication portion 323 face each other. Since it is provided in the portion, when the shutter curtain 21 is wound around the winding shaft 2, the Velcro fastener 339 and the Velcro fastener 338 do not overlap in the axial direction of the winding shaft 2.

  When the shutter curtain 21 is in a fully closed state, for example, when a person in the space on the near side in FIG. 8 tries to pass through the communication portion 323 from the near side in FIG. 8 to the far side in FIG. A human may turn up the lower end portion of the covering member 324. As a result, the engagement state of the Velcro fasteners 338 and 340 holding the engagement state between the cover portion 324A of the cover member 324 and the cover portion 325A of the cover member 325 is released. The cover plate 325A of the covering member 325 that covers the communication portion 323 on the back side of the curtain body 22 in FIG. 8 is pushed in the direction of the back side of FIG. 8 or the lower end portion of the covering portion 325A is turned up to lift the seat plate 41, the communication part 323 can be passed through.

  In the above embodiment, the shape of the communication residual portion 323X that is a portion of the communication portion 323 excluding the portion covered by the cover portion 324A of the one cover member 324 and the protruding portion 325B of the other cover member 325 are provided. Is symmetric or substantially symmetric with respect to the upper side 327 which is parallel to or substantially parallel to the axial direction of the winding shaft 2 and passes through the upper end portion of the communicating portion 323. Of the communication portion 323, the shape of the communication residual portion 323Y, which is a portion excluding the portion covered by the cover portion 325A of one cover member 325, and the shape of the protruding portion 324B of the other cover member 324 are taken up. It is symmetric or substantially symmetric with respect to the upper side 327 that is a straight line that is parallel or substantially parallel to the axial direction of the shaft 2 and passes through the upper end portion of the communication portion 323.

  For this reason, when the shutter curtain 21 is wound around the winding shaft 2, the protruding portion 324B of the covering member 324 and the shape of the protruding portion 324B are symmetrical or substantially symmetric with respect to the upper side 327 of the communicating portion 323. The communication residual portion 323Y covered by the covering member 324 overlaps with the axial direction of the winding shaft 2, and similarly, the protruding portion 325B of the covering member 325 and the protruding portion The shape of the portion 325B is a shape that is symmetric or substantially symmetric with respect to the upper side 327 of the communication portion 323, and the communication residual portion 323X that is covered by the covering member 325 is in the axial direction of the winding shaft 2 Will overlap. That is, when the shutter curtain 21 is wound around the winding shaft 2, a maximum of approximately three curtain bodies 22 overlap in the axial diameter direction of the winding shaft 2.

  In the conventional shutter curtain device described in Patent Document 1 described above, the two cover members cover the entire communication portion on one surface and the other surface of the curtain body, and the two communication portions are the two communication portions. When covered with the covering member, the two covering members overlap each other at all the communication portions, and the two covering members sewn on the curtain body are the two covering members. And one curtain body overlap each other, so when the shutter curtain is wound around the winding shaft, a maximum of approximately five curtain bodies overlap in the axial direction of the winding shaft. .

  Therefore, according to the present embodiment, of the winding diameter of the shutter curtain 21 when the shutter curtain 21 is wound around the winding shaft 2 and stored, the two covering members 324 and 325 are provided, and the winding diameter of the portion is Similarly to the first embodiment described above, the winding shaft 2 is smaller than that of the conventional shutter device, so that the winding shaft 2 can be obtained without using a special member such as a winding diameter adjusting member. The diameter of the shutter curtain 21 can be made substantially uniform in the axial direction of the winding shaft 2.

  Furthermore, as described above, in the present embodiment, when the communication portion 323 is covered by the two covering members 324 and 325, the oblique sides 331 and 333 of the two covering members 324 and 325 are the upper sides 327 of the communication portions. Unlike the first embodiment described above, when the communication portion 323 is covered by the two covering members 324 and 325, the curtains are crossed just at the middle point 327M or slightly above this point. There is no portion where the main body 22, the covering member 324, and the covering member 325 overlap each other, and the winding diameter of the shutter curtain 21 can be made substantially uniform in the axial direction of the winding shaft 2.

  Further, according to the present embodiment, the sewing portions 335 and 336 that are the opening and closing center portions of the two covering members 324 and 325 are tightly coupled to the curtain body 22 so as not to be detached, that is, sewn. When the communication portion 323 is covered with the two covering members 324 and 325, the sealing performance of the communication portion 323 is high, and each of the two covering members 324 and 325 is detached from the curtain body 22. The occurrence of a situation can be prevented.

  Furthermore, according to the present embodiment, when the communication portion 323 is covered by the two covering members 324 and 325, one covering member 324 and the other covering member 325 face each other at the communication portion 323. Therefore, compared with the case where one cover member 324 and the other cover member 325 do not face each other in the communication portion 323, the sealing performance of the communication portion 323 can be improved.

  In the present embodiment, the lengths of the lower sides 348 and 350 of the two covering members 324 and 325 are both shorter than the lower side 326 of the communication portion 323, and the length thereof is the length of the lower side 326 of the communication portion 323. However, when the communication portion 323 is covered by the two covering members 324 and 325, in the communication portion 323, a part of the covering member 324 and the covering member 325 face each other. Since a part of the part 343 is brought into an engaged state by the Velcro fasteners 338 and 340, the sealing performance of the communication part 323 is not lowered even when compared with the first embodiment described above.

  In the present embodiment, when the shutter curtain 21 is wound around the winding shaft 2, the Velcro fastener 337 and the Velcro fastener 340 do not overlap in the axial direction of the winding shaft 2, and The Velcro fastener 339 and the Velcro fastener 338 do not overlap in the axial direction of the winding shaft 2.

  Therefore, according to the present embodiment, even if the four Velcro fasteners 337, 338, 339, and 340 are provided on the curtain main body 22 and the two covering members 324 and 325, the winding of the shutter curtain 21 on the winding shaft 2 is possible. The diameter can be made substantially uniform in the axial direction of the winding shaft 2.

  In the present embodiment, the lengths of the lower sides 348 and 350 of the two covering members 324 and 325 are set to approximately three-fourths of the length of the lower side 326 of the communication portion 323, which is an example. The length of the lower side of the cover member may be a value that allows the communication portion 323 to be covered by the two cover members. Therefore, the length of the lower sides of the two covering members may be, for example, approximately two thirds of the length of the lower side 326 of the communication portion 323 or may be approximately four fifths. In short, the lower side 326 of the communication portion 323. Any value can be used as long as it is longer than one half of the length.

  However, from the viewpoint of improving the closing and sealing properties of the communication part 323, the area where the two covering members overlap in the communication part 323 is larger, that is, the lower side of the two covering members is longer. Is preferred.

  In the present embodiment, the open / close center portions of the two covering members 324 and 325 having a trapezoidal shape are sewn to the curtain body 22 so as not to be detached. However, as in the second embodiment described above. Each of the two cover members 324 and 325 may be attached to and detached from the curtain body 22.

  Further, in the above-described fourth embodiment, the shape of each of the two auxiliary members that can be attached to and detached from the main member and covers the communicating portion is the same as the two covering members in this embodiment. It is good also as a trapezoid.

It is a whole front view of the shutter device for disaster prevention concerning a first embodiment of the present invention. In FIG. 1, it is a figure which shows the state before covering the communication part of a curtain main body with two covering members. It is the whole front view of the shutter device for disaster prevention which concerns on 2nd embodiment of this invention. In FIG. 3, it is a figure which shows the state before covering the communication part of a curtain main body with two covering members. It is a whole front view of the shutter device for disaster prevention which concerns on 3rd embodiment of this invention. It is the whole front view of the shutter device for disaster prevention which concerns on 4th embodiment of this invention. In FIG. 6, it is a figure which shows the state before covering the opening part of a main body member with an auxiliary member, and the state before covering the communication part of a curtain main body with two cover members. It is the whole front view of the shutter device for disaster prevention which concerns on 5th embodiment of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Shutter device for disaster prevention 2 Winding shaft 21 Shutter curtain 22 Curtain main body 22A Main body member 22B Auxiliary member 23,123A, 123B, 123C, 223,323 Communication part 223 'Opening part 24,25,124A, 124B, 124C, 125A, 125B, 125C, 224, 225, 324, 325 Cover members 24A, 25A, 224A, 225A, 324A, 325A Cover member cover portions 24B, 25B, 224B, 225B, 324B, 325B Cover member protruding portions 23X, 23Y, 223X , 223Y, 323X, 323Y The communication remaining portions 26, 226, 326 of the communication portion The lower sides 26M, 226M, 326M of the communication portion The middle points 27, 227, 327 of the communication portion The upper sides 27M, 227M, 327M of the communication portion Middle points 31, 33, 31, 233, 331, 333 Covering member hypotenuse 348, 350 Covering member lower side 349, 351 Covering member trapezoidal shape upper side 34, 234 Intersection point where two cover members oblique sides intersect 35, 36, 335, 336 Sewing parts 35 ', 36', 37, 38, 39, 40, 235, 236, 237, 238, 239, 240, 255, 337 for coupling the covering member to the curtain body 338, 339, 340 Velcro-type fasteners 43, 259, 343 as engagement / disengagement means Overlap portions 47, 262, 347 where two cover members face each other in the communicating portion and the midpoint of the upper side of the communicating portion and the communicating portion A straight line connecting the midpoint of the lower side of

Claims (9)

The shutter curtain partitions the space by a closing operation, and has a shutter curtain that is wound and stored on a winding shaft. The shutter curtain is formed on the curtain body and the spaces partitioned by the shutter curtain. In the shutter device configured to include at least one communication portion that communicates with each other, and two cover members that cover the communication portion so as to be openable and closable on one surface and the other surface of the curtain body, Each of the two cover members has a cover portion that covers a part of the communication portion and a protruding portion that protrudes from the communication portion, and one of the communication portions is one of the two cover members. The shape of the communication residual portion which is a portion excluding the portion covered by the covering portion of the covering member, and the shape of the protruding portion of the other covering member , When the communication portion is covered by the two covering members, being symmetric or substantially symmetric with respect to a straight line that is parallel or substantially parallel to the axial direction of the winding shaft and passes through the upper end of the communication portion. The one covering member and the other covering member are partly facing each other in the communication portion. 2. The shutter device according to claim 1, wherein the communication part has a shape having an upper side and a lower side, and the upper side and the lower side of the communication part are parallel or substantially parallel to an axial direction of the winding shaft, The shape of the individual covering members is a right triangle that is symmetrical or substantially symmetric with respect to a straight line that connects the midpoint of the upper side of the communication portion and the midpoint of the lower side of the communication portion. When covered by the two covering members, the oblique sides of the two covering members intersect each other at the midpoint of the upper side of the communicating portion or near the upper portion of the midpoint. Shutter device. 3. The shutter device according to claim 1, wherein a length of a lower side of each of the two covering members is the same as or substantially the same as a length of the lower side of the communication portion. apparatus. 2. The shutter device according to claim 1, wherein the communication part has a shape having an upper side and a lower side, and the upper side and the lower side of the communication part are parallel or substantially parallel to an axial direction of the winding shaft, The shape of each cover member is a trapezoid that is symmetric or substantially symmetric with respect to a straight line connecting the midpoint of the upper side of the communication portion and the midpoint of the lower side of the communication portion. The length of the lower side of each of the members is shorter than the length of the lower side of the communicating portion, and the length of the upper side of one of the covering members is changed from the length of the lower side of the communicating portion to the length of the other covering member. The length is the same as or substantially the same as the length excluding the length of the lower side, and when the communicating part is covered by the two covering members, the oblique sides of the two covering members are located on the upper side of the communicating part. It will intersect at the midpoint or near the top of the midpoint Shutter device according to claim Rukoto. 5. The shutter device according to claim 1, wherein an opening / closing center portion of each of the two covering members is tightly coupled to the curtain body in a non-removable manner. 6. 5. The shutter device according to claim 1, wherein each of the two covering members is attachable to and detachable from the curtain body. The shutter device according to any one of claims 1 to 6, wherein at least some of the portions where the two covering members face each other are detachable from each other by an engagement / disengagement means. Characteristic shutter device. The shutter device according to any one of claims 1, 2, 3, 4, 6, and 7, wherein the curtain body includes a main member in which an opening is formed and one of the openings of the main member. An auxiliary member that covers a portion, and the communication portion is a portion of the opening of the main member excluding a portion covered by the auxiliary member, and the auxiliary member is A shutter device characterized in that it can be attached to and detached from a main member. 9. The shutter device according to claim 1, wherein the shutter curtain is for forming a disaster prevention zone when the space is partitioned by a closing operation.

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