JP4726762B2 - Sliding door fire door - Google Patents

Description

  The present invention relates to a sliding door type fire door that has an indoor opening in an open state during normal times and a closed state in an emergency such as a fire.

  Fire doors include shutter type, hinged door type, and sliding door type. Since the hinged door type fire door moves so as to draw an arc in the event of a fire, if there is an obstacle in front of the hinged door, it will obstruct the closing operation. For example, in a parking lot provided in a building, it is necessary to park or pass a vehicle effectively within a limited area. Therefore, if the fire door to be installed is a hinged door type, it is necessary to set the moving range of the hinged door to a parking prohibited area or a non-passable area. Therefore, when installing a fire door in a parking lot, a shutter type or a sliding door type is desirable. .

  As conventional sliding door type fire prevention doors, those described in Patent Documents 1 and 2 are known. In the fire door mounting structure described in Patent Document 1, in the closed state of the fire door that constitutes the sliding door, a heat sensitive foam material is provided in the sliding door, and in the event of a fire, a heat sensitive foam material that is sensitive to a high fire temperature is provided. It expands and expands to fill the gap. The emergency closing device for an automatic sliding door described in Patent Document 2 includes a self-closing mechanism that moves the sliding door in the closing direction in an emergency, and a control mechanism that operates by a signal from a smoke detector or the like to control the self-closing mechanism. Is.

JP 2002-38836 A JP 2006-89958 A

  The sliding door type fire door is not only installed in a parking lot, but also in other cases, an automatic closing device that is closed by a signal from a smoke detector, as described in Patent Document 2, Since it is installed above the sliding door that opens and closes, the opening height when the sliding door is in the open state is lowered by the height of the automatic closing device. Therefore, when installed in a parking lot, the height of the vehicle passing through the opening is limited by the automatic closing device, and thus there arises a disadvantage that a large vehicle cannot be parked.

  Although it is conceivable to increase the height of the ceiling and the height of the sliding door in order to secure a wide opening, the height of the entire building is increased. If the conventional sliding door type fire door is installed only on the ground floor, for example, it may have little effect, but when installing the conventional sliding door type fire door on each of the multiple floors, it is high for each floor It is necessary to secure the ceiling. Therefore, since the height of the whole building becomes high, the construction period becomes long, the cost rises, and the influence becomes great.

  The same can be said for shutter-type fire doors. In other words, in the shutter-type fire door, the diameter of the roll portion around which the shutter is wound becomes thicker as the height of the opening is increased in order to secure a wide opening, so that the ceiling needs to be further increased. Accordingly, when a shutter-type fire door is provided for each floor, the height of the entire building is similarly increased.

  Therefore, in a sliding door type fire door, if the height of the automatic closing device can be kept low, the floor can be used effectively and the height of the entire building can be kept low.

  Therefore, an object of the present invention is to provide a sliding door type fire door that can effectively utilize a floor and can keep the height of the entire building low.

  The sliding door type fire door of the present invention is a sliding door type fire door that is closed by moving an indoor opening along a guide rail provided at the top of the opening by an automatic closing device in an emergency. The door main body is a panel door provided with a hard bone and a door panel material provided on one surface side of the strong bone.

  The sliding door type fire prevention door of the present invention is a sliding door with a door body having a skeleton and a door panel material provided on one side of the skeleton, so that both the front side and the back side are provided. The weight can be reduced compared to a double-sided flash door provided with a door panel material. By reducing the weight of the door body, smaller power can be used for closing the door body, the suspension member, and the like than when the double-sided flash door is closed. Therefore, the sliding door type fire prevention door of the present invention can keep the height of the automatic closing device low, so that a wide opening can be secured without increasing the height of the ceiling.

  The door body is preferably formed by connecting two or more panel doors. When a fire door is installed, it is transported to a building installed by a vehicle or the like, but if it enters the building, it is carried by an operator. However, when the opening for closing the door body is large, the size of the door body inevitably increases and the weight increases, which makes transportation difficult. In addition, when the door panel material is formed of a steel plate having high fire resistance, even a small door body has a considerable weight. If the place to install is not the ground floor but the upper floor, it may be transported using stairs, which makes it more difficult to transport. By forming the door body by connecting two or more panel doors, the operator can carry it in a state where it is divided up to the place of installation and connect it at the place of installation to make one door body. it can. By doing so, in the state where the door body is divided, the weight can be reduced as compared with the case where the door body is transported in the state of one door body, so that the door body can be transported easily. Moreover, since the divided individual panel door is provided with the door panel material only on one side, the burden on the operator can be further reduced.

  It is desirable that the door panel material is connected so as to partially overlap the strength of another panel door to be coupled. When the door main body is formed by connecting two or more panel doors, the adjacent door panel materials may not be a uniform plane and may be slightly bent due to the connection state or weight. By connecting the door panel material to the power bones of the other panel doors to be connected so that they partially overlap, the adjacent door panel materials will be connected on the same power frame, so the connected door panel materials are bent. It can prevent becoming a state. Therefore, the sliding door type fireproof door of the present invention can improve the flatness of the door body in which a plurality of panel doors are connected.

  The sliding door type fire prevention door of the present invention can reduce the weight of the door body by making the door body a panel door, so that a small size condensed automatic closing device installed at the opening above the door body to be opened and closed Can be used. Therefore, the present invention makes it possible to secure a wide opening by suppressing the height of the automatic closing device, so that it becomes cheerful and provides a total economic merit as a whole building, and considers the environment. It can be a sliding door type fire door.

  A sliding door type fire door according to an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a front view of a sliding door type fire door according to an embodiment of the present invention. FIG. 2 is a plan view of the fire door shown in FIG. 3 is an enlarged view taken along the line AA in FIG. FIG. 4 is an enlarged view of a main part in FIG. FIG. 5 is a view taken along line BB in FIG.

  A fire door 10 shown in FIGS. 1 and 2 is installed in an indoor parking lot provided indoors such as a condominium or a tenant building. The fire door 10 closes the opening S of the wall surface W that partitions the indoor parking lot. A sliding door (both sliding doors) provided with a door body 11. The fire door 10 is positioned so that the left and right door bodies 11 that are sliding doors overlap the wall surface W in a normal state, and the opening S is opened to allow the vehicle to pass. In an emergency such as a fire, a smoke detector or the like is used. The automatic closing device interlocked with the fire alarm moves the door body 11 along the wall surface W to close the opening S, thereby preventing the passage of flame and smoke.

  The door main body 11 arranged on the right side when viewed from the front is provided with a sliding door type sliding door 12 through which an evacuee can pass when in a closed state. On the fire door 10, an automatic closing device 100 (see FIG. 5) is disposed and stored in the storage unit 13.

  The door body 11 is a panel door having a width of 2850 mm and a height of 2370 mm. The door body 11 includes a first door portion 111, a second door portion 112, and a third door portion 113, each of which is formed of a panel door, and is formed so as to divide the horizontal direction into three. . That is, the first door portion 111, the second door portion 112, and the third door portion 113 are each formed with a width of about 950 mm. The door body 11 is formed so that the left and right sides are symmetrical in the order of the first door portion 111, the second door portion 112, and the third door portion 113 from the center of the opening S. The sliding door 12 is provided in the second door portion 112 on the right side when viewed from the front. Further, as shown in FIG. 4, the first door portion 111 is provided with a door stop rubber 111 a.

  As shown in FIGS. 3 to 5, the first door portion 111, the second door portion 112, and the third door portion 113 are the heel 21 and the door panel material provided on the surface side of the heel 21. 22. The 1st door part 111, the 2nd door part 112, and the 3rd door part 113 provide the door panel material 22 only in the surface side of the skeleton 21 which forms an external shape, respectively, and each becomes a single-sided flash door structure. ing.

  The strength frame 21 is formed by welding vertical frame members 21a, 21a, an upper frame member 21b, and a lower frame member 21c in a substantially rectangular shape, and is formed of a steel plate.

  As shown in FIG. 4, the vertical frame members 21 a and 21 a are formed in a U-shaped cross section at a portion other than the butted portion Z of the first door portion 111. Further, the vertical frame member 21a of the abutting portion Z of the first door portion 111 is formed in a complementary uneven shape to prevent passage of flame and smoke when the door body 11 is closed. Further, as shown in FIG. 3, the vertical frame members 21 a and 21 a outside the third door portion 113 are formed in the recesses 24 a provided on the support posts 24 provided on both sides of the opening S when the closed state is established. A vertical outer frame member 21ax having an L-shaped cross section that serves as a stopper of the door body 11 by being locked is provided.

  As shown in FIG. 5, the upper frame member 21b is formed in a U-shaped cross section. An upper outer frame member 21bx having an L-shaped cross section for guiding the movement of the upper end of the door body 11 is fixed to the upper surface of the upper frame member 21b with screws 21by. This screw 21by also fixes the door panel material 22 to the upper frame material 21b.

  The lower frame member 21c regulates the range in which the lower end of the door main body 11 swings like a pendulum when the door main body 11 moves when the door main body 11 moves with the frame member 21cx whose opening is directed downward. And a frame member 21cy having a S-shaped cross section in which a linear concave portion formed so as to cover the guide roller 23 provided on the floor surface is formed. The U-shaped frame material 21cx and the S-shaped frame material 21cy are fixed by screws 21cz. Moreover, this screw 21cz also fixes the door panel material 22 to the lower frame material 21c.

  As shown in FIG. 4, the first door portion 111, the second door portion 112, and the third door portion 113 are fixed to each other by fixing the adjacent vertical frame members 21a with bolts 11x and nuts 11y. A single door body 11 is provided.

  The door panel material 22 may be a steel plate that has been subjected to hot dip galvanizing treatment or a steel plate that has been subjected to hot dip zinc / aluminum / magnesium alloy plating treatment. In the case where the door panel material 22 is made of a hot-dip zinc / aluminum / magnesium alloy plated steel plate, for example, ZAM (Zinc Aluminum Magnesium: registered trademark) manufactured by Nisshin Steel Co., Ltd. can be used. The steel sheet that has been subjected to hot dip galvanized, aluminum, magnesium alloy plating treatment is less likely to rust because it has 10 to 20 times higher corrosion resistance than the hot dip galvanized steel sheet. Therefore, when a hot-dip galvanized steel sheet is used for the door panel material 22, rusting will occur if it is not repainted within a range of 1 to 3 years, depending on the environment, even if rust-proof coating is applied. May occur. However, by using a hot-dip zinc / aluminum / magnesium alloy-plated steel sheet for the door panel material 22, it is not necessary to repaint for 3 to 5 years depending on the environment. Therefore, the cost required for maintenance can be suppressed.

  As shown in FIG. 4, the door panel material 22 of the first door portion 111 is bent so that the butted portion Z covers the vertical frame material 21a, and the second door portion 112 side is an end portion on the surface side of the vertical frame material 21a. It is formed so as to expose. The door panel material 22 and the vertical frame material 21a of the first door portion 111 are fixed by welding X1.

  The door panel material 22 of the second door portion 112 is connected so as to partially overlap the exposed portion of the vertical frame material 21 a of the first door portion 111. That is, the door panel member 22 of the second door 112 is connected to the vertical frame member 21a of the first door 111 to which the second door 112 is connected, so that the first door 111 and the second door 112 are connected. Are firmly connected. Further, the door panel material 22 of the second door portion 112 is formed such that the third door portion 113 side exposes the end portion on the surface side of the vertical frame member 21a.

  The door panel material 22 of the second door part 112 is screwed at 400 mm intervals along the vertical direction by the vertical frame material 21a and the screw 21ay of the first door part 111, and welded X2 to the vertical frame material 21a of the second door part 112. It is fixed by.

  Similarly to the second door portion 112, the door panel member 22 of the third door portion 113 is connected so as to partially overlap the exposed portion of the vertical frame member 21 a of the second door portion 112. That is, the door panel material 22 of the third door portion 113 is connected to the vertical frame member 21a of the second door portion 112 to which the third door portion 113 is coupled. As shown in FIG. 3, the door panel member 22 of the third door 113 is bent into an L shape so as to be flush with the vertical outer frame member 21ax.

  In addition, the door main body 11 which concerns on this Embodiment shown in FIGS. 1-5 is a 1st door part 111-the 3rd door part 113 along a vertical direction between the lower frame material 21c and the upper frame material 21b. However, it is not shown in the figure.

  As shown in FIG. 5, the storage portion 13 in which the automatic closing device 100 is stored is a box-shaped body having a substantially rectangular cross section, is formed with a height of 210 mm, and is above the range in which the door body 11 moves. Is arranged. Both ends of the storage portion 13 are supported by support columns 14 fixed to the wall surface W by anchor bolts 14a (see FIG. 3).

Front portions of the front surface and the bottom surface of the storage portion 13 serve as a lid 13a for maintaining the automatic closing device 100 and are detachably formed.
The automatic closing device 100 includes a guide rail 101 that slides a door wheel 11 a provided in the door body 11 in the left-right direction along the longitudinal direction of the storage portion 13, and a drive that moves the door body 11 along the guide rail 101. And a motor 102. The drive motor 102 is connected to a fire alarm such as a smoke detector (not shown), and starts driving in response to a signal from the fire alarm.

  The automatic closing device 100 can be reduced in weight because the door body 11 is a panel door, and the weight of the door body 11 can be reduced to 145 kg on the left side and 180 kg on the right side. The weights of the left and right door bodies 11 are different, and the right door body 11 is heavier because of the weight of the sliding door 12.

  For example, when the door body is a double-sided flush door having the same size as the door body 11 according to the present embodiment, the door body weight is 230 kg on the left side and 255 kg on the right side, which is considerably compared with the case where it is a panel door. Become heavier.

  Thus, since the door body 11 is a panel door, a small-sized automatic closing device 100 can be used. Therefore, the height H of the storage portion 13 is set to be about 100 mm lower than that of a double-sided flash door. Can do. Therefore, since the height of the opening S can be ensured to be 100 mm large, the floor can be used effectively and the height of the entire building can be kept low. Moreover, since a small thing can be used as the automatic closing device 100, it is possible to suppress the cost of the automatic closing device 100. Therefore, the fire door 10 according to the present embodiment can obtain an economic effect. Further, even if the door body 11 is a panel door in which the door panel material 22 is provided only on one side (front surface) side of the skeleton 21, the back surface side of the door body 11 is positioned so as to overlap the wall surface W in normal times. Parking lot users cannot distinguish between panel doors and double-sided flush doors. Therefore, even if the door body 11 is a panel door, it does not affect the beauty.

  When installing the fire door 10 according to the present embodiment, first, the support column 14 and the storage unit 13 are installed in the opening S portion of the indoor parking lot where the fire door 10 is installed, and the automatic closing device 100 is installed. Install. Next, the door main body 11 is carried in and installed. When the door main body 11 is carried in, the first door part 111, the second door part 112, and the third door part 113 are carried in a state of being divided individually. . Further, the sliding door 12 of the second door portion 112 on the right side is also carried in a detached state. By doing so, the weight of the door main body 11 can be made into about 1/3. In addition, the entire door body 11 is not simply divided, but the first door 111, the second door 112, and the third door 113 are each formed with a panel door structure. Lighter than split double-sided flash doors. Therefore, a single worker can carry in the loading work of each door body 11. Moreover, even if the parking lot to be installed is not the ground floor but the upper floor, it is easy to carry in by stairs. Further, depending on the building to be installed, it can be carried in by an elevator.

  An operator who carries in the first door portion 111, the second door portion 112, and the third door portion 113 in a divided state connects the respective vertical frame members 21a with bolts 11x and nuts 11y. Further, the door panel material 22 is fixed to the vertical frame material 21a with screws 21ay.

  The 1st door part 111, the 2nd door part 112, and the 3rd door part 113 are the one door main body 11 only by connecting the vertical frame material 21a which faced each other with the volt | bolt 11x and the nut 11y. can do. However, just connecting the vertical frame members 21a that are butted together with the bolts 11x and the nuts 11y, the adjacent door panel members 22 do not have a uniform plane due to the connection state and the weight, and viewed in plan. There is a possibility that it may be bent into a “f” shape.

  In the door main body 11 according to the present embodiment, the door panel material 22 of the second door portion 112 and the third door portion 113 partially overlaps the adjacent vertical frame material 21a (stress 21). The door panel materials 22 adjacent to each other are connected on the same vertical frame material 21a. Therefore, since it can prevent that the 1st door part 111, the 2nd door part 112, and the 3rd door part 113 will be in the bent state, the improvement of the flatness of the door main body 11 can be aimed at. it can.

As mentioned above, although embodiment of this invention has been described, this invention is not limited to the said embodiment. For example, in the present embodiment, three (first door portion 111 to third door portion 113) are connected to form one door body 11, but two or four or more are possible. Moreover, the fire door 10 according to the present embodiment can be used not only for installation in a parking lot but also for closing a passage in a building, a staircase, or partitioning a room. .
In the present embodiment, the door body 11 is formed by connecting three panel doors to form one panel door. For example, as shown in FIG. 6A, each panel door is in a divided state in the closed state. When the front panel door 31a is closed, the panel doors 31b and 31c are successively pulled out along the respective guide rails (not shown) when the front panel door 31a is closed. It is good also as the sliding door-type fire door 31 which closes S. FIG. Further, as shown in FIG. 6B, the panel doors 32a to 32d may be a sliding door type fire door 32 that is alternately bent to the left and right in the traveling direction and connected like a bellows.

  INDUSTRIAL APPLICABILITY The present invention is suitable for a sliding door type fire door that is open during normal times and closed in the event of a fire. Is optimal.

It is a front view of the sliding door type fire prevention door which concerns on embodiment of this invention. It is a top view of the fire door shown in FIG. It is an AA line principal part enlarged arrow view in FIG. It is a principal part enlarged view in FIG. It is a BB line arrow directional view in FIG. (A) And (B) is a schematic sectional drawing which shows the sliding door-type fire prevention door which concerns on other embodiment.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Fire door 11 Door main body 111 1st door part 111a Door contact rubber 112 2nd door part 113 3rd door part 11a Door car 11x bolt 11y Nut 12 Submerged door 13 Storage part 13a Cover 14 Support pillar 14a Anchor bolt 21 Strength frame 21a Vertical frame Material 21ax Vertical outer frame material 21ay Screw 21b Upper frame material 21bx Upper outer frame material 21by Screw 21c Lower frame material 21cx U-shaped frame material 21cy S-shaped frame material 21cz Screw 22 Door panel material 23 Guide roller 24 Column 31 Fire door 31a-31c Panel door 32 Fire door 32a-32d Panel door 100 Automatic closing device 101 Guide rail 102 Drive motor H Height S Opening W Wall surface Z Butting part

Claims (1)

A sliding door type fire door that closes an indoor opening by moving along a guide rail provided at the top of the opening by an automatic closing device in an emergency,
The door body which is a sliding door is a panel door provided with a skeleton and a door panel material provided on one side of the skeleton ,
The door body is formed by connecting two or more panel doors,
The said door panel material is connected so that one part may overlap with the strength of the other panel door to connect, The sliding door type fireproof door characterized by the above-mentioned.

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