Construction tool

Abstract

To provide a fitting capable of enhancing the supporting strength of a shoji (paper sliding door) and the fireproof performance of the fitting.SOLUTION: A fitting 1 includes: a frame 2; a shoji 3 (paper sliding door) arrange in the frame 2; and a hinge 4 provided between a lower frame 22 of the frame 2 and a lower door frame 32 of the shoji 3. The fitting allows the shoji 3 to open and close with the hinge 4 serving as a fulcrum. The fitting further comprises a self-weight support piece 6 which is arranged on the indoor side of the hinge 4 and protrudes from the lower frame 22 toward the lower door frame 32. The shoji 3 in the closed state supports its own weight at least on two portions of the hinge 4 and the weight support piece 6.SELECTED DRAWING: Figure 2

Description

Technical Field

[0001] The present invention relates to fittings such as a smoke exhaust window.

Background Art

[0002] There is known a fitting provided with a hinge portion between a lower frame of a frame body and a lower frame of a shoji screen, and the shoji screen is opened and closed using the hinge portion as a rotation fulcrum. For example, the fitting described in Patent Document 1 constitutes an outwardly swinging smoke exhaust window that opens the shoji screen to the outdoor side using the hinge portion as a rotation fulcrum.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] However, in this type of fitting, since the self-weight of the shoji screen in the closed state acts intensively on the hinge portion, there is room for improvement in terms of support strength and fire resistance performance.

Means for Solving the Problems

[0005] The present invention was created for the purpose of solving these problems in view of the above circumstances. The invention according to claim 1 includes a frame body, a shoji screen disposed on the frame body, and a hinge portion provided between a lower frame of the frame body and a lower frame of the shoji screen, and is a fitting that opens and closes the shoji screen using the hinge portion as a rotation fulcrum. The fitting includes a self-weight support piece that is disposed on the indoor side of the hinge portion and protrudes from the lower frame toward the lower frame or from the lower frame toward the lower frame. The shoji screen in the closed state is supported by its self-weight at at least two points, namely, the hinge portion and the self-weight support piece. The hinge part and the self-weight support piece are arranged in parallel along the longitudinal direction of the lower frame or the lower sill, and have a missing part that is missing in the longitudinal direction A fitting characterized by the above. The invention according to claim 2 further includes an oil damper provided between the vertical frame of the frame body and the vertical frame of the shoji screen. When the shoji screen is in the closed state, the oil damper is located on the indoor side of the self-weight support piece. The missing part of the self-weight support piece is provided on the central side in the longitudinal direction, and the missing part of the hinge part is provided on both end sides in the longitudinal direction. The invention is the fitting according to claim 1 described above. The invention according to claim 3 is characterized in that a heat-expandable material is provided on the lower frame, which expands due to heat from a fire and blocks the space surrounded by the lower frame, the lower frame, the hinge part, and the self-weight support piece. The invention is the fitting according to claim 2 described above. The invention according to claim 4 is characterized in that the hinge part includes a lower frame side hinge piece formed on the lower frame, a lower frame side hinge piece formed on the lower frame and rotatably engaged with the lower frame side hinge piece, and a hinge holding member attached to the lower frame for maintaining the engaged state between the lower frame side hinge piece and the lower frame side hinge piece. The self-weight support piece is formed on the hinge holding member. The invention is the fitting according to any one of claims 1~3 described above.

Advantages of the Invention

[0006] According to the invention of claim 1, the concentrated load on the hinge part can be alleviated, so the support strength of the shoji screen in normal times can be increased. Also, even during thermal deformation, the self-weight of the shoji screen can be dispersed and supported at at least two points, so the fire resistance performance can also be improved. Moreover While supporting the self-weight of the shoji screen at two points, rainwater on the lower frame can be discharged to the outdoor side. Also, according to the invention of claim 2 the oil flow path of the oil leaking from the oil damper can be lengthened to delay the outflow time of the oil to the outdoor. Also, according to the invention of claim 3 during a fire, the space (the oil flow path connected to the outdoor side) surrounded by the lower frame, the lower frame, the hinge part, and the self-weight support piece can be blocked by the heat-expandable material to prevent the oil leaking from the oil damper from flowing out outdoors. Also, according to the invention of claim 4According to the invention, the hinge pressing member can be also used as a self-weight support piece.

Brief Description of the Drawings

[0007]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Figure 7

Modes for Carrying Out the Invention

[0008] Hereinafter, embodiments of the present invention will be described with reference to the drawings. In FIGS. 1 to 3, 1 is a fitting, and the fitting 1 includes an outwardly falling smoke exhaust window 1a (hereinafter simply referred to as the smoke exhaust window 1a) and a FIX window 1b integrally formed below the smoke exhaust window 1a. Note that the FIX window 1b may be omitted or may be formed above the smoke exhaust window 1a. Hereinafter, the smoke exhaust window 1a, which is the main part of the present invention, will be described.

[0009] The smoke exhaust window 1a includes a frame body 2 disposed at an opening of a building body, a shoji 3 disposed on the frame body 2, a hinge portion 4 provided between a lower frame 22 of the frame body 2 and a lower frame 32 of the shoji 3, and an oil damper 5 provided between a vertical frame 23 of the frame body 2 and a vertical frame 33 of the shoji 3. The shoji 3 is configured to be openable and closable with the hinge portion 4 as a rotation fulcrum.

[0010] The frame body 2 is formed by connecting, for example, an upper frame 21, a lower frame 22, and left and right vertical frames 23 made of extruded profiles, bent objects, etc., and is configured in a rectangular shape when viewed from the front.

[0011] The shoji 3 includes, for example, a frame body 34 having a rectangular shape when viewed from the front, which is formed by connecting an upper frame 31, a lower frame 32, and left and right vertical frames 33 made of extruded profiles, bent objects, etc., a glass 35 disposed on the inner peripheral side of the frame body 34, a setting block 36 provided on the lower frame 32 to support the self-weight of the glass 35, a lower frame pressing edge 37 provided on the lower frame 32 to press the lower side of the glass 35 from the outdoor side, and vertical frame pressing edges 38 provided on the vertical frames 33 to press the left and right vertical sides of the glass 35 from the outdoor side.

[0012] The hinge portion 4 includes a lower frame side hinge piece 41 formed on the lower frame 22, a lower frame side hinge piece 42 formed on the lower frame 32 and rotatably engaged with the lower frame side hinge piece 41, and a hinge pressing member 43 attached to the upper surface portion of the lower frame 22 to maintain the engaged state between the lower frame side hinge piece 41 and the lower frame side hinge piece 42. The lower frame side hinge piece 42 is engaged with the lower frame side hinge piece 41 from the indoor side, and the hinge pressing member 43 abuts on the lower frame side hinge piece 42 from the indoor side to prevent the lower frame side hinge piece 42 from coming off the lower frame side hinge piece 41.

[0013] The oil damper 5 is disposed in a space S1 formed between the vertical frame 23 and the vertical frame 33, with one end side connected to the vertical frame 23 and the other end side connected to the vertical frame 33. The oil damper 5 expands and contracts according to the opening and closing operation of the shoji 3, and assists or buffers the opening and closing operation of the shoji 3 with the pressure of the oil filled inside. The oil damper 5 can also function as a stopper member for maintaining the shoji 3 in an open state.

[0014] Next, the characteristic configuration of the fitting 1 of the present embodiment will be described with reference to FIGS. 2 to 5.

[0015] As shown in FIGS. 2, 4, and 5, the fitting 1 is arranged in parallel on the indoor side of the hinge portion 4 and includes a self-weight support piece 6 that protrudes from the upper surface portion of the lower frame 22 toward the lower surface portion of the lower sill 32. The self-weight support piece 6 of the present embodiment is an extruded profile having an L-shaped cross-section in side view, and includes a fixing piece 62 fixed to the lower frame 22 via a screw 61, and a protruding piece 63 that protrudes upward from the outdoor-side end of the fixing piece 62 and can contact the lower surface portion of the lower sill 32 when the shoji 3 is in the closed state. Note that the self-weight support piece 6 is not limited to an extruded profile and may be formed of a square pipe, a bent member, or the like.

[0016] According to such a fitting 1, since the self-weight of the closed shoji 3 is supported at at least two points, namely, the hinge portion 4 and the self-weight support piece 6, the concentrated load on the hinge portion 4 can be alleviated, and the support strength of the shoji 3 in normal times can be increased. Further, even during thermal deformation, the self-weight of the shoji 3 can be dispersedly supported at at least two points, so that the fire resistance performance can also be improved.

[0017] In this type of fitting 1, rainwater or the like that has entered the inner peripheral side of the frame body 2 is discharged to the outdoor side via the upper surface portion of the lower frame 22, and rainwater or the like that has entered the inner peripheral side of the shoji 3 flows into the upper surface portion of the lower frame 22 through the drain holes 32a formed in the lower sill 32 and is discharged from here to the outdoor side. In the fitting 1 of the present embodiment, when the hinge portion 4 and the self-weight support piece 6 are arranged in parallel along the longitudinal direction of the lower frame 22, the hinge portion 4 and the self-weight support piece 6 are each provided with a missing portion 4a, 6a that is missing in the longitudinal direction. In this way, while supporting the self-weight of the shoji 3 at two points, rainwater or the like on the lower frame 22 can be discharged to the outdoor side through the missing portions 4a, 6a.

[0018] By the way, during a fire, the oil damper 5 may be heated and the oil inside may leak out. Since the oil leaked from the oil damper 5 may catch fire, from the viewpoint of suppressing the spread of fire outdoors, it is preferable to prevent the oil leaked from the oil damper 5 from flowing out to the outdoor side.

[0019] As shown in FIGS. 3 and 4, when the shoji 3 is in the closed state, the oil damper 5 is located on the indoor side of the self-weight support piece 6. When the oil leaking from the oil damper flows onto the lower frame 22, it may flow out to the outdoor side through the oil flow path R passing through the missing portion 6a of the self-weight support piece 6 and the missing portion 4a of the hinge portion 4. Therefore, in the fitting 1 of the present embodiment, the missing portion 6a of the self-weight support piece 6 is provided on the central side in the longitudinal direction of the lower frame 22, and the missing portion 4a of the hinge portion 4 is provided on both end sides in the longitudinal direction of the lower frame 22. By doing so, the oil flow path R of the oil leaking from the oil damper 5 can be lengthened to delay the outflow time of the oil to the outdoors.

[0020] Further, as shown in FIGS. 2, 4, and 5, on the lower surface portion of the lower sill 32, there is provided a heat-expandable material 7 that foams due to heat from a fire and blocks the space S2 (oil flow path R) surrounded by the lower frame 22, the lower sill 32, the hinge portion 4, and the self-weight support piece 6. According to such a fitting 1, during normal times, while allowing drainage of rainwater and the like, during a fire, the space S2 is blocked by the heat-expandable material 7 (see (c) of FIG. 5), and it is possible to prevent the oil leaking from the oil damper 5 from flowing out outdoors.

[0021] Also, as shown in FIG. 4, the heat-expandable material 7 includes a first heat-expandable material 7a disposed in a flow path portion connecting from the missing portion 6a of the self-weight support piece 6 to one missing portion 4a of the hinge portion 4, and a second heat-expandable material 7b disposed in a flow path portion connecting from the missing portion 6a of the self-weight support piece 6 to the other missing portion 4a of the hinge portion 4. The first heat-expandable material 7a and the second heat-expandable material 7b are disposed so as to overlap the missing portion 6a of the self-weight support piece 6 in the longitudinal direction of the lower frame 22. By doing so, the two heat-expandable materials 7a and 7b disposed in the vicinity of the missing portion 6a of the self-weight support piece 6 can efficiently block the oil flow path R.

[0022] Also, in the present embodiment, as shown in FIGS. 2 and 5, in order to increase the connection strength between the lower frame 22 and the vertical frame 23, screw holes 24a are added to the lower frame 22, and the screw - fixing positions between the lower frame 22 and the vertical frame 23 are increased. Specifically, for the hollow portion 22a of the lower frame 22 that does not have screw holes, a screw - hole - shaped member 24 having screw holes 24a is inserted over the entire length of the lower frame 22, and screws (not shown) that penetrate the left and right vertical frames 23 are screwed into both ends thereof. According to such a screw - hole - shaped member 24, not only can the screw holes 24a be easily added, but also by fixing the left and right vertical frames 23 to both ends of the screw - hole - shaped member 24 inserted over the entire length of the lower frame 22, the connection strength between the lower frame 22 and the vertical frame 23 can be increased. Note that the cross - sectional shape of the screw - hole - shaped member 24 can be arbitrarily changed as long as it can be inserted into the hollow portion 22a and can restrict rotation around the screw - hole center line in the hollow portion 22a.

[0023] According to the present embodiment configured as described above, a fitting 1 includes a frame body 2, a shoji 3 disposed in the frame body 2, and a hinge portion 4 provided between the lower frame 22 of the frame body 2 and the lower frame 32 of the shoji 3, and the shoji 3 is opened and closed using the hinge portion 4 as a rotation fulcrum. The fitting 1 is provided with a self - weight support piece 6 that is disposed on the indoor side of the hinge portion 4 and protrudes from the lower frame 22 toward the lower frame 32. Since the closed - state shoji 3 is supported by its own weight at at least two points, namely the hinge portion 4 and the self - weight support piece 6, the concentrated load on the hinge portion 4 can be alleviated, and the support strength of the shoji 3 during normal times can be increased. Also, since the self - weight of the shoji 3 can be dispersedly supported at at least two points even during thermal deformation, the fire - resistant performance can also be improved.

[0024] Also, the hinge portion 4 and the self - weight support piece 6 are arranged in parallel along the longitudinal direction of the lower frame 22 and are provided with missing portions 4a, 6a that are missing in the longitudinal direction. Therefore, while supporting the self - weight of the shoji 3 at two points, rainwater etc. on the lower frame 22 can be discharged to the outdoor side.

[0025] Furthermore, it further includes an oil damper 5 provided between the vertical frame 23 of the frame body 2 and the vertical frame 33 of the shoji 3. When the shoji 3 is in the closed state, the oil damper 5 is located on the indoor side of the self-weight support piece 6. The missing portion 6a of the self-weight support piece 6 is provided on the central side in the longitudinal direction of the lower frame 22, and the missing portion 4a of the hinge portion 4 is provided on both end sides in the longitudinal direction of the lower frame 22. Therefore, the oil flow path R of the oil leaking from the oil damper 5 can be lengthened to delay the outflow time of the oil to the outside.

[0026] In addition, the lower frame 32 is provided with a heat-expandable material 7 that foams due to heat from a fire and closes the space S2 surrounded by the lower frame 22, the lower frame 32, the hinge portion 4, and the self-weight support piece 6. Therefore, it is possible to prevent the oil leaking from the oil damper 5 during a fire from flowing out to the outside.

[0027] Next, the fittings 1B and 1C according to the second and third embodiments of the present invention will be described with reference to FIGS. 6 and 7. However, for the configurations common to the above embodiments, the same reference numerals as those in the above embodiments may be used, and the description of the above embodiments may be incorporated by reference.

[0028] In addition, as shown in FIG. 6, the fitting 1B of the second embodiment is different from the above embodiment in that the self-weight support piece 6B is formed on the hinge pressing member 43B. According to such a second embodiment, the hinge pressing member 43B is also used as the self-weight support piece 6B, and the number of parts and costs can be reduced.

[0029] In addition, as shown in FIG. 7, the fitting 1C of the third embodiment is different from the above embodiment in that the self-weight support piece 6C is integrally formed to protrude from the lower frame 32 toward the lower frame 22. According to such a third embodiment, the self-weight support piece 6C is integrated with the lower frame 32, and the number of parts and costs can be reduced.

Description of Reference Numerals

[0030] 1, 1B, 1C Fittings 1a Smoke exhaust window 1b FIX window 2 Frame body 21 Upper frame 22 Lower frame 23 Vertical frame 24 Screw hole profile 24a Screw hole 3 Shoji 31 Upper frame 32 Lower frame 32a Drain hole 33 Vertical frame 34 Frame body 35 Glass 36 Setting block 37 Lower frame pressing edge 38 Vertical frame pressing edge 4 Hinge part 4a Missing part 41 Lower frame side hinge piece 42 Lower frame side hinge piece 43, 43B Hinge pressing member 5 Oil damper 6, 6B, 6C Self-weight support piece 61 Screw 6a Missing part 62 Fixed piece 63 Protruding piece 7 Heat-expandable material 7a First heat-expandable material 7b Second heat-expandable material R Oil flow path S1 Space S2 Space

Claims

1. a frame body, a shoji screen disposed on the frame body, and a hinge portion provided between a lower frame of the frame body and a lower frame of the shoji screen, and a fitting for opening and closing the shoji screen with the hinge portion as a rotation fulcrum, comprising a self-weight support piece disposed on the indoor side of the hinge portion and protruding from the lower frame toward the lower frame or protruding from the lower frame toward the lower frame, the shoji screen in the closed state is supported by its own weight at at least two points, namely the hinge portion and the self-weight support piece, the hinge portion and the self-weight support piece are arranged in parallel along the longitudinal direction of the lower frame or the lower frame, and have a missing portion missing in the longitudinal direction, and the fitting is characterized in that.

2. further comprising an oil damper provided between a vertical frame of the frame body and a vertical frame of the shoji screen, the oil damper is located on the indoor side of the self-weight support piece when the shoji screen is in the closed state, the missing portion of the self-weight support piece is provided on the central side in the longitudinal direction, the fitting according to claim 1, wherein the missing portion of the hinge portion is provided on both end sides in the longitudinal direction.

3. the lower frame is provided with a heat-expandable material that foams due to heat from a fire and closes the space surrounded by the lower frame, the lower frame, the hinge portion, and the self-weight support piece, and the fitting according to claim 2 is characterized in that.

4. the hinge portion a lower frame side hinge piece formed on the lower frame, a lower frame side hinge piece formed on the lower frame and rotatably engaged with the lower frame side hinge piece, and a hinge pressing member attached to the lower frame and maintaining the engaged state of the lower frame side hinge piece and the lower frame side hinge piece, and the fitting according to any one of claims 1 to 3, wherein the self-weight support piece is formed on the hinge pressing member.

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