JP6574348B2 - Screen device - Google Patents

Description

  In the present invention, when a screen is stretched from a screen frame, or when the stretched screen is removed for maintenance or the like, the operation can be facilitated and the stretched screen can be easily held in a tension state. The present invention relates to the screen device.

  In recent years, in order to prevent accidents caused by falling screen doors installed in high-rise condominiums, etc., the screen doors of such condominiums are fixed to the building opening frame, or the screen doors themselves are installed inside the sash interior The countermeasures are becoming normal. Under such circumstances, it cannot be said that the above-mentioned accident can be sufficiently prevented from causing a general user to replace or clean the net in the screen door, even for an operator with specialized skills. There is a question about safety.

  In addition, the conventional re-laying of the net to the screen door frame is performed by removing the screen door frame from the sash of the building and then fixing the known string-like rubber or resin push edge to the net of the screen door frame. When the net is pushed into the groove together with the net, a tensile force in a direction perpendicular to the net fixing groove acts on the net, so that the net is pulled in the direction of the net fixing groove by the tensile force, and the tensile force is excessive. In this case, the net slips to eliminate the excessive force, so that a relatively uniform tensile force acts on the net as a whole, and a tight and clean finish can be obtained.

  However, when the screen door frame is fixed to a sash or the like as described above, it is of course difficult for ordinary users to replace the net in the procedure as described above, and it is difficult Even an operator having such a technique cannot always stretch a net in a tension state similar to the conventional one because the screen door frame is fixed to a sash or the like. Therefore, the screen door frame itself has a mechanism for making the net attached to the screen door frame detachable and at the same time making the net attached to the screen door frame a beautiful finish. It is an effective countermeasure to attach to

  From this point of view, a screen device in which an insect screen or the like is detachably attached to a screen door frame for maintenance or replacement such as cleaning in a building opening has already been disclosed in Patent Document 1 and the like. In the screen device disclosed in Patent Document 1, the screen is attached by providing slits along the longitudinal direction of the vertical frame at opposite portions of the pair of left and right vertical frames located on the indoor side of the window sash. Engagement pieces provided along the ends are engaged with each other so as to slide up and down along the inside of the slit. Then, detachable holding members are attached to the upper and lower ends of the screen so that they can be detachably held on the upper and lower frames of the building opening, and can be guided vertically along the sliding groove of the vertical frame. .

  Such a configuration is advantageous in that the held screen can be easily pulled out from the window sash. However, when the side edge of the screen is returned to the slit of the original vertical frame, It is not always possible to achieve a beautiful finish with a tight screen. If priority is given to a beautiful finish, the distance between the slits of the pair of vertical frames and the distance between the engagement pieces provided at the left and right side edges of the screen are set in advance so that the screen is in an appropriate tension state. It is difficult to perform such high-precision processing, but even if such processing is performed, in that case, the screen is placed between the slits of the opposing vertical frames. It becomes very difficult to attach or remove the screen, which causes a problem in workability of attaching and detaching the screen.

  On the other hand, Patent Document 2 discloses an insect screen door that can always stretch a net in a tension state. The screen door is composed of a groove-shaped outer casing member whose inner frame side is open, and an inner casing member disposed in the groove. The locking member is provided with a slit that locks in the retaining state, and an elastic member is interposed between the protruding portion of the inner flange member and the inward wall of the outer flange member, and the net is applied by the urging force of the elastic member. Is held in tension.

  However, as described above, the configuration including the elastic member that holds such a net in a tension state is applied to a screen device in which a screen that is held by a sash or the like should be easily inserted / removed, as described above. As a result, the net can be easily attached to and detached from the screen door frame fixedly attached to the sash or the like, and at the same time, In order to achieve a beautiful finish with the attached nets taut, it is essential to attach a mechanism suitable for them to the screen door frame itself.

JP 2012-172504 A Utility Model Registration No. 2547706

  The first technical problem of the present invention is to make the operation easy when the screen is stretched from the quadrangular frame or when the stretched screen is removed for maintenance or the like. A second technical problem is to provide a screen device that can easily hold the screen in tension after the screen is stretched.

In order to solve the above-described problems, according to the present invention, a quadrangular screen frame including a pair of opposed frame members and a quadrangular screen detachably attached to the screen frame, Concave grooves are respectively formed in the facing portions of the pair of frame members, and inner rails each having a slit along the longitudinal direction of the frame member are accommodated in the concave grooves. The inside can be displaced in a direction in which the interval between the pair of inner rails increases or decreases, and a pair of opposed end portions of the screen are inserted into the inner rail through the slits, and the pair of end portions are Engagement pieces for engaging the inner rail are provided inside the slit, and the other pair of opposite ends of the screen are locked to the screen frame. And an operating bar that can be detached from the screen frame, the screen is slid along the slit by the operating bar in a state where the operating bar is detached from the screen frame. Along with the operation bar, the inner rail can be attached to or detached from the screen frame from one end side or the other end side of the inner rail. At least one of the pair of frame members is the pair of frame members. A tensioning mechanism that adjusts the tension state of the screen by adjusting the spacing between the inner rails of the inner rail, and the tensioning mechanism includes an adjustment member that is in a fixed relationship with the inner rail, and the adjustment member that has the spacing between the facing members. An operating element that displaces in an increasing / decreasing direction, and the opposing distance of the adjusting member and the inner rail is increased by the operating element. When the inner rail is displaced in the direction, the inner rail is engaged with the engaging piece of the screen, and the screen is in a tension state, and the operation member displaces the adjusting member and the inner rail in a direction in which the facing distance decreases. When this is done, the engagement of the engagement piece with respect to the inner rail is released, so that the screen is in a relaxed state, and at the same time, the screen is slidable with respect to the inner rail. screen apparatus is provided which is characterized in that it is.

In a preferred embodiment of the screen device according to the present invention , the support member is accommodated in the recessed grooves of the pair of frame members so as to be displaceable in a direction in which the facing distance between the pair of inner rails increases or decreases, The inner rail is fixedly held on the support member, and the adjustment member is attached.

In another preferred embodiment of the screen device according to the present invention, the adjustment member is constituted by a female screw piece having a screw hole, and the operating element is rotatable on a frame member of the screen frame, but in the axial direction. The screw is held so that it cannot be moved, and is constituted by a screw thread screwed into the screw hole of the female screw piece.

In another preferred embodiment of the screen device according to the present invention, the adjustment member has a tensioning guide surface and a relaxation guide surface that are inclined with respect to the longitudinal direction of the inner rail. The operating element is held by the frame material of the screen frame so as to be slidable in the longitudinal direction of the frame material, the tension pressing surface that contacts the tensioning guide surface, and the relaxation guide A relaxing pressing surface in contact with the surface, and when the operating element is slid in one direction, the tension pressing surface presses the tension guide surface of the adjusting member, thereby adjusting the adjustment. When the inner rail is displaced in the direction in which the facing distance between the pair of inner rails is increased through the member and the operation element is slid in the reverse direction, the relaxing pressing surface is used for relaxing the adjusting member. To press the guide surface of Ri, the inner rail via the adjustment member is configured to be displaced in a direction opposing distance of the pair of inner rails is reduced.

  According to the screen device of the present invention described in detail above, when a screen is stretched from a quadrangular frame, or when the stretched screen is removed for maintenance or the like, the operation is facilitated. In addition, it is possible to provide a screen device that can easily hold the screen in a tensioned state after tensioning.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 shows a relaxed state of a screen in a first embodiment of a screen device according to the present invention, where FIG. is there. The tension | tensile_strength state of the screen in the Example is shown, (a) is the partial front view which shows only the right half by a cross section, (b) is a partial top view of only the right half. It is a longitudinal cross-sectional view of the same Example. It is an external appearance perspective view of the same Example. It is a perspective view of the state which pulled out a part of screen in Drawing 4. It is a principal part disassembled perspective view which decomposes | disassembles and shows the structure of the adjustment member of the tension | tensile_strength grade of the screen in the Example, and its operation element. (A) is operation | movement explanatory drawing which shows the relaxation state of the said adjustment member, (b) shows the tension | tensile_strength. It is a principal part disassembled perspective view which decomposes | disassembles and shows the structure of the adjustment member of the tension | tensile_strength grade of the screen in 2nd Example of this invention, and its operation element. (A) is operation | movement explanatory drawing which shows the relaxation state of the adjustment member of FIG. 8, (b) is the principal part cross-sectional view. (A) is operation | movement explanatory drawing which shows the tension | tensile_strength state of the adjustment member of FIG. 8, (b) is the principal part cross-sectional view.

  1 to 7 show a first embodiment of a screen device according to the present invention. This screen device basically has a screen 4 stretched on a quadrangular frame 1 or when the stretched screen 4 is removed from the screen frame 1 for maintenance or the like. In addition to facilitating operation, the screen 4 can be easily held in tension after being stretched. Especially in high-rise condominiums and the like, a screen door is used to prevent falling accidents. For example, when the screen door frame is fixed to the sash or the like, it is effective to easily and safely replace or clean the net by removing only the net while the screen door frame is fixed to the sash or the like.

  The configuration of the screen device will be described in detail. The screen frame 1 has a rectangular shape with a pair of upper and lower frame members 2 and 2 and a pair of left and right frame members 3 and 3 for stretching a screen 4 such as an insect screen. In the frame, grooves 6 are respectively formed in the facing portions inside the pair of left and right frame members 3, 3, and slits along the longitudinal direction of the frame members 3, 3 are formed in the groove 6. The inner rail 8 provided with 9 is accommodated in the concave groove 6 via a support member 10 that is guided to move in the protruding and retracting direction. In addition, you may comprise the said inner rail 8 as what was fixed to the supporting member 10 or integrated with it. Further, the screen 4 stretched between the pair of frame members 3 and 3 has a large number of engaging pieces 12 which are slidably engaged along the inner side of the slit 9 along the left and right ends thereof. And the engagement piece 12 is engaged with the inside of the slit 9 of the inner rail 8 so that the screen 4 is held between the left and right frame members 3 and 3. As the engaging piece 12, a half of a fastener can be used.

  On the other hand, as clearly shown in FIGS. 3 and 5, operation bars 15 that are detachably held by the screen frame 1 are attached to a pair of upper and lower opposing sides of the screen 4. These operating bars 15 are formed in a rectangular tube-shaped screen connecting portion 16 fitted into a recess 18 provided at the inner end of the surface of the upper and lower frame members 2, 2 of the screen frame 1, and recessed from the outer surface of the connecting portion 16. And an operation portion 17 extending to the outside of the place 18. The screen connecting portion 16 is provided with slits 16a on the surface in contact with the end portion of the screen 4, and a large number of engaging portion pieces 4a attached to the upper and lower ends of the screen 4 are engaged with the inside of the screen 4 so that the screen 4 The operating portion 17 extends to the outside of the recess 18 to facilitate the attaching / detaching operation of the operating bar 15 to the recess 18, and at the same time, elastically deforms itself on the outer surface. The provided protrusion 17a can be engaged with the engagement groove 18a in the recess 18 so that the operation bar 15 can be detachably fitted into the recess 18.

  The screen 4 is assembled to the screen frame 1 from the one end side of the pair of inner rails 8 inside the slits 9 of the inner rails 8 inserted into the left and right frame members 3, 3 of the screen frame 1. A pair of operations provided on the upper and lower opposing sides of the screen 4 in a state where the screen 4 is stretched over the entire length of the inner rail 8 and the screen 4 is not slackened in the vertical direction. This is done by inserting and locking the bar 15 into the recess 18 on the surface of the screen frame 1.

  As described in detail below, in the stage where the screen 4 is stretched between the slits 9 of the inner rail 8, the sliding of the engaging piece 12 with respect to the inner rail 8 needs to be smooth, For this reason, the pair of inner rails 8 in the left and right frame members 3, 3 of the screen frame 1 is provided with the openings of the concave grooves 6 on the inner side of the frame members 3, 3 so as to maintain an interval that does not apply tension to the screen 4. It must be located on the part side (see FIG. 1).

  Further, in order to smoothly remove the screen 4 with the operation bars 15 attached to both ends from between the left and right frame members 3, 3, the length of the operation bars 15 is set inside the inner rail 8 in the screen frame 1. It may be shorter than the inner method between the pair of opposing frame members 3 and 3 accommodated in the housing. As can be seen from FIG. 5, one operating bar 15 is taken out from the recess 18 and connected thereto. When the screen 4 is pulled out, the other operation bar 15 associated with the screen 4 moves between the left and right frame members 3 and 3 without escaping from the recess 18 in the frame member 2 of the screen frame 1. become. When the screen 4 is introduced into the screen frame 1 along the slit 9, the screen 4 may be moved in the direction opposite to the above.

  As is apparent from the above description with reference to FIGS. 3 to 5, the operation bars 15 attached to the upper and lower ends of the screen 4 have the same cross-sectional shape, and are symmetrical with respect to the top and bottom of the screen 4. Therefore, the shape of the recess 18 in the upper and lower frame members 2 of the screen frame 1 is also provided symmetrically, and as a result, the screen frame 1 on which the screen 4 is stretched is installed. Except for the rolling wheel 19a attached to the lower frame member 2 and the guide member 19b attached to the upper frame member 2 in order to adapt to the form of the sash or the like of the opening of the building, it can be formed symmetrically vertically. it can. The symmetrical shape allows the screen to be pulled out in either the upper or lower direction of the screen frame 1 by selecting the upper and lower operation bars 15 and facilitates the operation of removing the screen for stretching or maintenance. In particular, when the screen 4 is removed, the direction in which the screen 4 is led out from the screen frame 1 can be freely selected according to the installation position of the screen frame, the surrounding environment, and the like. Is very effective for ensuring the safety of work.

  Next, the screen 4 is stretched between the slits 9 in the left and right frame members 3, 3 in the screen frame 1, and a pair of the screen 4 provided above and below the screen 4 in a state where there is no vertical slack. A tensioning mechanism for making the screen 4 stretched in the screen frame 1 tightly finished after the operating bar 15 is fitted and locked in the recess 18 on the surface of the screen frame 1 will be described. .

  Details of the tension mechanism in the first embodiment of the screen device according to the present invention described above are shown in FIG. 1, FIG. 2, FIG. 6 and FIG. This tension mechanism basically has an adjustment member 20 that adjusts the degree of tension of the screen 4 by moving the inner rail 8 accommodated in the concave groove 6 of the frame member 3 in the concave and convex direction in the concave groove 6. And an operator 25 for operating them is provided so as to be easily operated from the outer surface of the frame member 3.

  The tensioning mechanism of the first embodiment will be described more specifically. The adjusting member 20 provided on the pair of frame members 3 and 3 is disposed in the concave groove 6 of the frame member 3 as shown in FIGS. An operating element 25 for operating the adjusting member 20 is formed in the screw hole 22 of the female screw piece 21 by fixing the female screw piece 21 to the support member 10 holding the inner rail 8 with a mounting screw 23. The screw 26 is screwed. The screw 26 can be rotated by a tool 29 such as a screwdriver with respect to the frame material 3 of the screen frame 1, but the movement is held impossible by the attachment of a cover 27 or the like that restricts movement in the axial direction. is there.

  Accordingly, when the screw 26 is rotated by the driver 29 in the direction indicated by the arrow A in FIG. 7A, the female screw piece 21 moves in the direction of the arrow a. As a result, the inner rail 8 moves in the direction of the arrow a. When the screw 26 is rotated by a screwdriver 29 in the direction indicated by the arrow B in FIG. 5B, the female screw piece 21 moves in the direction of the arrow b. As a result, the inner rail 8 moves in the direction of the arrow b and takes a position where the screen 4 is tensioned.

  According to the tension mechanism having such a configuration, when the screen 4 is detached from the screen frame 1 or attached to the screen frame 1, the screen 4 is adjusted to a position where the screen 4 is relaxed by the operation shown in FIG. Then, after attaching the screen 4 to the screen frame 1, while confirming the degree of tension of the screen 4, the operation shown in FIG. 7B may be adjusted to a position where the screen is moderately tensioned. Since the screw 26 as the operation element 25 is provided so as to be operable from the outer surface of the frame member 3, the operation is very easy and the safety of the operation can be easily secured.

  In the example shown in the figure, the female thread portion 21 is attached to the support member 10 that supports the inner rail 8 in the concave groove 6 of the frame member 3, but the inner rail 8 and the support member 10 are integrated. As long as the operation element 25 is not deformed such as being bent by the operation of the operation element 25, the female screw part 21 can be integrated with the integrated inner rail 8. In the illustrated embodiment, the tension mechanism is provided on the left and right frame members 3 of the screen frame 1. However, in order to increase the safety of the operation, it is provided on only one of the left and right frame members 3. it can.

  8 to 10 show the tension mechanism according to the second embodiment of the present invention. In this embodiment, the adjustment member 20 provided on the pair of frame members 3 and 3 supports the inner rail 8 in the groove 6 of the frame member 3 as clearly shown in the exploded perspective view of the main part in FIG. The operation member 25 that is constituted by a driven member 31 integrated with the member 10 and that operates the adjustment member 20 is slidably held only in the longitudinal direction with respect to the frame member 3 of the screen frame 1. The slider 35 is configured to change the depth of the holding position of the inner rail 8 in the concave groove 6 of the frame member 3 by the movement.

  More specifically, the driven member 31 that forms the adjustment member 20 straddles the support member 10 in a notch portion 10a formed by notching a part of the side portion of the support member 10, By providing inclined grooves 34 that change the depth in the concave groove 6 gradually in the longitudinal direction of the frame member 3 on both side walls that are suspended from both sides, a relaxing surface having guide surfaces 32a on both sides of the inclined groove 34 is provided. A tension guide wall 33 having a guide wall 32 and a guide surface 33a is formed.

  On the other hand, as can be seen from FIG. 10A, the slider 35 forming the operation element 25 is configured such that the sliding surface 35a slides on the guide surface 3a provided in the frame member 3. The frame member 3 is provided with a contact piece 36 that is slidably held only in the longitudinal direction of the frame member 3 and is inclined so as to enter and exit the inclined groove 34 on the side wall of the driven member 31. The contact piece 36 has a relaxing pressing surface 37 on the side facing the guide surface 32a of the driven member 31 and a tension pressing surface 38 facing the opposite guide surface 33a. As described later, the position of the inner rail 8 in the groove 6 is changed by the contact. The guide surface 32a of the driven member 31 and the pressing surface 37 of the slider 35 are each provided with minute stepped irregularities, and the contact portion piece 36 has a buffer against the guide surface 32a on the pressing surface 37 side. A kerf 39 for general contact is provided.

As shown in FIG. 9, in the tension mechanism of the second embodiment having the above-described configuration, when the slider 35 is slid to the arrow C side, the pressing surface 37 of the contact piece 36 is the guide surface of the driven member 31. Since the inner rail 8 is pressed to the arrow c side by pressing 32a, the screen 4 stretched between the inner rails 8 is relaxed, while the slider 35 is slid to the arrow D side as shown in FIG. When moved, the pressing surface 38 of the contact piece 36 presses the guide surface 33a of the driven member 31 and presses the inner rail 8 to the arrow d side, so that the screen 4 that has been relaxed between the inner rails 8 is tensioned. Will do.
In the second embodiment, the tension mechanism can be provided only on one of the left and right frame members 3 of the screen frame 1.

DESCRIPTION OF SYMBOLS 1 Screen frame 2,3 Frame material 4 Screen 6 Groove | groove 8 Inner rail 9 Slit 12 Engagement piece 15 Operation bar | burr 20 Adjustment member 25 Control element

Claims (4)

A rectangular screen frame including a pair of opposing frame members, and a rectangular screen removably attached to the screen frame;
Concave grooves are formed in the facing portions of the pair of frame members in the screen frame, and inner rails each having a slit along the longitudinal direction of the frame member are accommodated in the concave grooves, The inside of the concave groove can be displaced in a direction in which the facing distance between the pair of inner rails increases or decreases,
A pair of opposed end portions of the screen are inserted into the inner rail through the slit, and engaging pieces are provided on the pair of end portions to engage with the inner rail inside the slit, respectively. The other pair of opposite ends of the screen are provided with operation bars that can be locked and detached from the screen frame, and the operation bars are detached from the screen frame. The screen is slid along the slit by the crosspiece, and the screen is attached to or removed from the screen frame from the one end side or the other end side of the inner rail together with the operation crosspiece. It is possible,
At least one frame member of the pair of frame members has a tension mechanism that adjusts a tension state of the screen by adjusting a facing distance between the pair of inner rails,
The tension mechanism includes an adjustment member that is fixed to the inner rail, and an operation element that displaces the adjustment member in a direction in which the facing interval increases or decreases, and the adjustment member and the inner rail are moved by the operation element. When the facing interval is increased, the inner rail is locked to the engaging piece of the screen, and the screen is in a tensioned state. With the operation element, the adjusting member and the inner rail are separated from each other. When displaced in a decreasing direction, the locking of the engaging piece to the inner rail is released, so that the screen is in a relaxed state, and at the same time, the screen is slidable with respect to the inner rail. Configured to be,
A screen device. A support member is accommodated in the concave grooves of the pair of frame members so that the support member can be displaced in a direction in which the facing distance between the pair of inner rails increases or decreases, and the inner rail is fixedly held by the support member. The screen device according to claim 1, wherein the adjustment member is attached . The adjustment member is constituted by a female screw piece having a screw hole,
The operation element is configured by a screw rod that is rotatably supported by the frame material of the screen frame but cannot be moved in the axial direction, and is screwed into the screw hole of the female screw piece.
The screen device according to claim 1, wherein the screen device is a screen device. The adjusting member has a tensioning guide surface and a relaxing guide surface inclined with respect to the longitudinal direction of the inner rail,
The operating element is held by the frame material of the screen frame so as to be slidable in the longitudinal direction of the frame material, and the tension pressing surface that comes into contact with the tension guide surface, and the relaxing A pressing surface for relaxation that contacts the guide surface,
When the operating element is slid in one direction, the tensioning pressing surface presses the tensioning guide surface of the adjusting member, so that the inner rail is connected to the pair of inner rails via the adjusting member. When the operating element is slid in the reverse direction, the loosening pressing surface presses the loosening guide surface of the adjusting member, thereby causing the adjusting member to pass through the adjusting member. The inner rail is configured to be displaced in a direction in which the facing distance between the pair of inner rails decreases.
The screen device according to claim 1, wherein the screen device is a screen device.

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