Fittings
The smoke exhaust window fitting addresses the issue of oil leakage during fires by incorporating a heated foam material to block the oil flow path, ensuring that oil is contained and does not escape outdoors, even if the foam material foams slightly after oil leakage begins.
Patent Information
- Application Number
- JP2021134754
- Authority / Receiving Office
- JP · JP
- Patent Type
- Patents
- Current Assignee / Owner
- Filing Date
- 2021-08-20
- Publication Date
- 2025-04-02
- Estimated Expiration
- 2041-08-20
AI Technical Summary
Existing smoke exhaust window fittings face issues where oil leaking from an oil damper during a fire may not be properly received due to the timing of heated foam material foaming, potentially causing oil to flow out into the outdoors.
The fitting includes a frame body, a shoji screen, a hinge section, an oil damper, and a heated foam material on the lower frame. The oil flow path between the lower frames allows oil to flow and is blocked by the heated foam material when it foams during a fire, preventing oil from escaping outdoors.
This configuration effectively blocks the oil flow path during a fire, ensuring that oil leaked from the oil damper is contained and preventing it from flowing out into the outdoors, even if the heated foam material foams slightly after oil leakage begins.
Smart Images
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Abstract
Description
[Technical field]
[0001] The present invention relates to fittings such as smoke exhaust windows. [Background technology]
[0002] There is known a fitting that has a hinge between the bottom frame of the frame body and the bottom stile of the shoji screen, and that rotates around the hinge to open and close the shoji screen. For example, the fitting described in Patent Document 1 constitutes an outward-tilting smoke exhaust window that rotates around the hinge to open the shoji screen to the outdoors. In addition, this type of fitting may have an oil damper between the vertical frame of the frame body and the vertical stile of the shoji screen to assist or cushion the opening and closing of the shoji screen. For example, Patent Document 2 discloses a fitting that uses a heated foam material to catch oil leaking from the oil damper in the event of a fire. [Prior art documents] [Patent documents]
[0003] [Patent Document 1] Publication No. 7-2943 [Patent Document 2] JP 2014-74316 A Summary of the Invention [Problem to be solved by the invention]
[0004] However, in the building fixture in Patent Document 2, a heated foaming material is placed near the oil damper, and depending on the timing of the foaming of the heated foaming material, the oil leaking from the oil damper may not be caught, and the oil may leak outside. [Means for solving the problem]
[0005] The present invention was created in consideration of the above-mentioned actual situation and with the aim of solving these problems. The invention of claim 1 is a fitting comprising a frame body, a shoji screen placed on the frame body, a hinge section provided between the bottom frame of the frame body and the bottom stile of the shoji screen, and an oil damper provided between the vertical frame of the frame body and the vertical stile of the shoji screen, the hinge section serving as a pivot point for opening and closing the shoji screen, wherein an oil flow path is formed between the bottom frame and the bottom stile into which oil leaking from the oil damper flows and which leads to the outdoors, and the bottom stile is provided with a heated foaming material that foams due to heat from a fire and blocks the oil flow path. Furthermore, the invention of claim 2 is the building fixture described in claim 1, further comprising a protruding piece arranged indoors of the hinge portion and outdoors of the oil damper, protruding from the bottom frame toward the bottom sill, or protruding from the bottom sill toward the bottom frame, wherein the hinge portion and the protruding piece are arranged in parallel along the longitudinal direction of the bottom frame or the bottom sill, and are provided with a missing portion that is missing in the longitudinal direction. In addition, the invention of claim 3 is a fitting as described in claim 2, characterized in that the missing portion of the protruding piece is provided on the central side in the longitudinal direction, and the missing portions of the hinge portion are provided on both ends in the longitudinal direction. In addition, the invention of claim 4 is a fitting as described in claim 3, characterized in that when the heated foaming material foams due to heat caused by a fire, it seals the space surrounded by the bottom frame, the bottom sill, the hinge portion and the protruding piece. Furthermore, the invention of claim 5 is a fitting according to claim 3 or 4, wherein the heated foaming material includes a first heated foaming material arranged in a flow path connecting from the missing portion of the protruding piece to one missing portion of the hinge portion, and a second heated foaming material arranged in a flow path connecting from the missing portion of the protruding piece to the other missing portion of the hinge portion, and the first heated foaming material and the second heated foaming material overlap with the missing portion of the protruding piece in the longitudinal direction. Effect of the Invention
[0006] According to the invention of claim 1, an oil flow path into which oil leaking from the oil damper in the event of a fire flows is formed between the lower frame and the lower sill, and the oil flow path is blocked by a heated foaming material provided on the lower sill. Therefore, even if the timing of the foaming of the heated foaming material is delayed relative to the timing of the oil leaking from the oil damper, the oil can be received by the heated foaming material and prevented from leaking outside. According to the invention of claim 2, an oil flow path can be formed by the hinge portion and the protruding piece. Such an oil flow path can also function as a drainage path for rainwater. According to the invention of claim 3, the oil flow path can be lengthened to delay the time it takes for the oil to flow outside. According to the invention of claim 4, the space (oil flow path) can be efficiently blocked by the heat foaming material. According to the invention of claim 5, the oil flow path can be efficiently blocked by the two heat-foaming materials disposed in the vicinity of the missing portion of the projecting piece. [Brief description of the drawings]
[0007] [Figure 1] FIG. 1 is a front view of a fitting according to a first embodiment of the present invention, as viewed from the outdoor side. [Diagram 2] 2 is a cross-sectional view taken along line AA in FIG. 1. [Diagram 3] FIG. 2 is a cross-sectional view of FIG. [Figure 4] This is a cross-sectional plan view of the main parts of the fixture, showing the upper surface configuration of the lower frame. [Diagram 5] 4, (b) is a DD cross-sectional view of FIG. 4, and (c) is an EE cross-sectional view of FIG. 4 (when foamed by heating). [Figure 6] FIG. 6 is a side cross-sectional view of a main part of a fitting according to a second embodiment of the present invention. [Figure 7] FIG. 11 is a side cross-sectional view of a main part of a fitting according to a third embodiment of the present invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
[0008] Hereinafter, an embodiment of the present invention will be described with reference to the drawings. In Fig. 1 to Fig. 3, 1 is a fitting, and the fitting 1 comprises an outward tilting smoke exhaust window 1a (hereinafter simply referred to as the smoke exhaust window 1a) and a fixed window 1b formed integrally below the smoke exhaust window 1a. The fixed 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 comprises a frame body 2 placed in an opening in the building's main body, a shoji screen 3 placed on the frame body 2, a hinge section 4 provided between the bottom frame 22 of the frame body 2 and the bottom stile 32 of the shoji screen 3, and an oil damper 5 provided between the vertical frame 23 of the frame body 2 and the vertical stile 33 of the shoji screen 3, and is configured so that the shoji screen 3 can be opened and closed with the hinge section 4 as a pivot point.
[0010] The frame body 2 is configured to have a rectangular shape when viewed from the front by connecting an upper frame 21, a lower frame 22, and left and right vertical frames 23, which are made of, for example, an extruded shape or a bent material.
[0011] The shoji screen 3 comprises a frame body 34 which is rectangular when viewed from the front and is formed by connecting an upper frame 31, a lower frame 32, and left and right vertical frames 33, each of which is made of, for example, an extruded profile or a bent material, glass 35 which is arranged on the inner periphery of the frame body 34, a setting block 36 which is attached to the lower frame 32 and supports the weight of the glass 35, a lower frame pressing edge 37 which is attached to the lower frame 32 and presses down on the bottom edge of the glass 35 from the outside, and a vertical frame pressing edge 38 which is attached to the vertical frame 33 and presses down on the left and right vertical edges of the glass 35 from the outside.
[0012] The hinge portion 4 comprises 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 of the lower frame 22 and maintaining the engaged state of the lower frame side hinge piece 41 and the lower frame side hinge piece 42. The lower frame side hinge piece 42 engages with the lower frame side hinge piece 41 from the indoor side, and the hinge pressing member 43 abuts against the lower frame side hinge piece 42 from the indoor side, thereby preventing 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 the space S1 formed between the vertical frame 23 and the vertical frame 33, with one end connected to the vertical frame 23 and the other end connected to the vertical frame 33. The oil damper 5 expands and contracts in response to the opening and closing movement of the shoji screen 3, and assists or cushions the opening and closing movement of the shoji screen 3 with the pressure of the oil filled inside. The oil damper 5 can also function as a stopper member that keeps the shoji screen 3 open.
[0014] Next, the characteristic configuration of the fitting 1 of this embodiment will be described with reference to Figs.
[0015] As shown in Figures 2, 4 and 5, the fitting 1 is arranged in parallel on the indoor side of the hinge portion 4 and is equipped with a weight-supporting piece 6 (protruding piece) that protrudes from the upper surface of the bottom frame 22 towards the lower surface of the bottom frame 32. The weight-supporting piece 6 in this embodiment is an extruded member that is L-shaped in side cross section, and integrally comprises a fixed piece 62 that is fixed to the bottom frame 22 via a screw 61, and a protruding piece 63 that protrudes upward from the outdoor end of the fixed piece 62 and can abut against the lower surface of the bottom frame 32 when the shoji screen 3 is in a closed state. The weight-supporting piece 6 is not limited to an extruded member, and may be made of a square pipe, a bent member, or the like.
[0016] With this type of fitting 1, the weight of the shoji screen 3 in the closed state is supported at least at two points, the hinge part 4 and the weight-supporting piece 6, which reduces concentrated load on the hinge part 4 and increases the support strength of the shoji screen 3 in normal times. In addition, even during thermal deformation, the weight of the shoji screen 3 can be supported in a distributed manner at least at two points, improving fire resistance.
[0017] In this type of fitting 1, rainwater and the like that enters the inner periphery of the frame 2 is discharged to the outdoors via the upper surface of the bottom frame 22, and rainwater and the like that enters the inner periphery of the shoji screen 3 flows into the upper surface of the bottom frame 22 via drainage holes 32a formed in the bottom frame 32, and is discharged from here to the outdoors. In the fitting 1 of this embodiment, when the hinge portion 4 and the weight support piece 6 are arranged in parallel along the longitudinal direction of the bottom frame 22, the hinge portion 4 and the weight support piece 6 are each provided with missing portions 4a, 6a that are missing in the longitudinal direction. In this way, the weight of the shoji screen 3 is supported at two points, while rainwater and the like on the bottom frame 22 can be discharged to the outdoors via the missing portions 4a, 6a.
[0018] Incidentally, in the event of a fire, the oil damper 5 may heat up and cause the oil inside to leak. Since the oil leaking from the oil damper 5 may ignite, from the viewpoint of preventing the fire from spreading outdoors, it is preferable to prevent the oil leaking from the oil damper 5 from flowing outdoors.
[0019] As shown in Figures 3 and 4, when the sliding screen 3 is in the closed state, the oil damper 5 is located inside the room relative to the weight support piece 6, and when oil leaking from the oil damper flows onto the bottom frame 22, there is a possibility that it will flow out to the outside through the oil flow path R that passes through the missing part 6a of the weight support piece 6 and the missing part 4a of the hinge part 4. Therefore, in the fitting 1 of this embodiment, the missing part 6a of the weight support piece 6 is provided on the center side in the longitudinal direction of the bottom frame 22, and the missing parts 4a of the hinge part 4 are provided on both ends in the longitudinal direction of the bottom frame 22. In this way, the oil flow path R for the oil leaking from the oil damper 5 can be lengthened, and the time it takes for the oil to flow out to the outside can be delayed.
[0020] 2, 4 and 5, a heated foaming material 7 is provided on the underside of the bottom frame 32, which foams due to heat from a fire and blocks the space S2 (oil flow path R) surrounded by the bottom frame 22, the bottom frame 32, the hinge portion 4 and the weight support piece 6. Such a fitting 1 allows the drainage of rainwater and the like during normal times, but blocks the space S2 with the heated foaming material 7 in the event of a fire (see (c) of FIG. 5), preventing oil leaking from the oil damper 5 from leaking outside.
[0021] 4, the heated foaming material 7 includes a first heated foaming material 7a arranged in a flow path portion connecting the missing portion 6a of the weight support piece 6 to one missing portion 4a of the hinge portion 4, and a second heated foaming material 7b arranged in a flow path portion connecting the missing portion 6a of the weight support piece 6 to the other missing portion 4a of the hinge portion 4. The first heated foaming material 7a and the second heated foaming material 7b are arranged so as to overlap the missing portion 6a of the weight support piece 6 in the longitudinal direction of the lower frame 22. In this way, the two heated foaming materials 7a and 7b arranged near the missing portion 6a of the weight support piece 6 can efficiently block the oil flow path R.
[0022] In this 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 number of screw fixing points between the lower frame 22 and the vertical frame 23 is increased. Specifically, a screw hole shaped member 24 having a screw hole 24a is inserted into the hollow portion 22a of the lower frame 22 that does not have a screw hole 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 of the screw hole shaped member 24. With such a screw hole shaped member 24, not only can the screw holes 24a be easily added, but the left and right vertical frames 23 can be fixed to both ends of the screw hole shaped member 24 inserted over the entire length of the lower frame 22, thereby increasing the connection strength between the lower frame 22 and the vertical frame 23. 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 rotation around the center line of the screw hole in the hollow portion 22a can be restricted.
[0023] According to the present embodiment configured as described above, the fitting 1 comprises a frame body 2, a shoji screen 3 placed on the frame body 2, a hinge section 4 provided between the bottom frame 22 of the frame body 2 and the bottom stile 32 of the shoji screen 3, and an oil damper 5 provided between the vertical frame 23 of the frame body 2 and the vertical stile 33 of the shoji screen 3, and opens and closes the shoji screen 3 using the hinge section 4 as a pivot point. Between the bottom frame 22 and the bottom stile 32, an oil flow path R is formed into which oil leaking from the oil damper 5 flows and which leads to the outdoors, and the bottom stile 32 is provided with a heated foaming material 7 that foams due to heat from a fire and blocks the oil flow path R. Therefore, not only can rainwater and the like be drained through the oil flow path R during normal times, but in the event of a fire, the oil flow path R can be blocked by the heated foaming material provided on the bottom stile, preventing oil leaking from the oil damper 5 from flowing out to the outdoors.
[0024] Furthermore, since the heated foaming material 7 is provided on the lower frame 23, it can be positioned away from the oil damper 5 compared to when it is provided in the vicinity of the oil damper 5 (the vertical frame 23 or the vertical frame 23).As a result, even if the foaming timing of the heated foaming material 7 is delayed relative to the timing of oil leaking from the oil damper 5, the oil can be received by the heated foaming material 7 and prevented from leaking outside.
[0025] In addition, the hinge portion 4 and the weight support piece 6 are arranged indoors rather than indoors and outdoors rather than outdoors than the oil damper 5, and further include a weight support piece 6 protruding from the lower frame 22 toward the lower frame 32, and the hinge portion 4 and the weight support piece 6 are arranged in parallel along the longitudinal direction of the lower frame 22, and include missing portions 4a, 6a that are missing in the longitudinal direction of the lower frame 22.Therefore, the hinge portion 4 and the weight support piece 6 can form an oil flow path R, and the oil flow path R can function as a drainage path for rainwater.
[0026] Furthermore, the missing portion 6a of the weight support piece 6 is provided at the center in the longitudinal direction of the lower frame 22, and the missing portion 4a of the hinge portion 4 is provided at both ends in the longitudinal direction of the lower frame 22, thereby lengthening the oil flow path R and delaying the time it takes for the oil to flow out to the outdoors.
[0027] In addition, when the heated foaming material 7 foams due to the heat caused by a fire, it blocks the space S2 surrounded by the lower frame 22, the lower frame 32, the hinge portion 4 and the weight support piece 6, so that the heated foaming material 7 can efficiently block the space S2 (oil flow path R).
[0028] In addition, the heated foaming material 7 includes a first heated foaming material 7a arranged in a flow path connecting from the missing portion 6a of the weight support piece 6 to one missing portion 4a of the hinge portion 4, and a second heated foaming material 7b arranged in a flow path connecting from the missing portion 6a of the weight support piece 6 to the other missing portion 4a of the hinge portion 4.The first heated foaming material 7a and the second heated foaming material 7b overlap with the missing portion 6a of the weight support piece 6 in the longitudinal direction of the lower frame 22, so that the oil flow path R can be efficiently blocked by the two heated foaming materials 7a, 7b arranged near the missing portion 6a of the weight support piece 6.
[0029] Next, fittings 1B and 1C according to a second and third embodiment of the present invention will be described with reference to Figures 6 and 7. However, for configurations common to the above-mentioned embodiment, the same reference numerals as those in the above-mentioned embodiment may be used to refer to the description of the above-mentioned embodiment.
[0030] 6, the fitting 1B of the second embodiment differs from the above embodiment in that the weight support piece 6B is formed on the hinge pressing member 43B. According to the second embodiment, the hinge pressing member 43B doubles as the weight support piece 6B, which reduces the number of parts and the cost.
[0031] 7, the fitting 1C of the third embodiment differs from the above-mentioned embodiments in that the weight support piece 6C is integrally formed to protrude from the lower frame 32 toward the lower frame 22. According to the third embodiment, the weight support piece 6C is integrated with the lower frame 32, which reduces the number of parts and the cost. [Explanation of symbols]
[0032] 1, 1B, 1C Doors and windows 1a Smoke exhaust window 1b FIX window 2 frame 21 Upper Frame 22 Bottom frame 23 Vertical Frame 24 Screw hole shape material 24a Bishole 3 Shoji Screen 31 Upper stile 32 Lower stile 32a Drain hole 33 Vertical frame 34 Frame 35 Glass 36 Setting Block 37 Lower stile rim 38 Vertical frame edge 4 Hinge part 4a Missing part 41 Lower frame hinge piece 42 Lower frame side hinge piece 43, 43B Hinge retainer 5 Oil damper 6, 6B, 6C Weight support piece 61 Screw 6a Missing part 62 Fixed piece 63 Projecting piece 7 Heat foaming material 7a First heated foaming material 7b Second heating foaming material R Oil flow path S1 space S2 space
Claims
1. A frame body, A shoji screen disposed on the frame body; A hinge portion provided between the lower frame of the frame body and the lower frame of the shoji screen; An oil damper is provided between the vertical frame of the frame body and the vertical frame of the shoji screen, A fitting that opens and closes the shoji screen using the hinge portion as a pivot point, Between the lower frame and the lower stile, an oil flow path is formed through which oil leaking from the oil damper flows and which is connected to the outdoors, This fitting is characterized in that the bottom frame is provided with a heat-foaming material that foams when exposed to heat from a fire and blocks the oil flow path.
2. The hinge portion is disposed on the indoor side and the oil damper is disposed on the outdoor side, and the protruding piece protrudes from the lower frame toward the lower frame, or protrudes from the lower frame toward the lower frame. The fixture described in claim 1, characterized in that the hinge portion and the protruding piece are arranged in parallel along the longitudinal direction of the bottom frame or bottom stile, and have a missing portion that is missing in the longitudinal direction.
3. The missing portion of the protruding piece is provided on the center side in the longitudinal direction, The fixture according to claim 2, characterized in that the missing portion of the hinge portion is provided on both ends in the longitudinal direction.
4. The fixture according to claim 3, characterized in that, when the heated foaming material foams due to heat caused by a fire, it seals the space surrounded by the bottom frame, the bottom stile, the hinge portion and the protruding piece.
5. The heat-foaming material includes a first heat-foaming material disposed in a flow path portion connecting from the missing portion of the protruding piece to one missing portion of the hinge portion, and a second heat-foaming material disposed in a flow path portion connecting from the missing portion of the protruding piece to the other missing portion of the hinge portion, The fixture according to claim 3 or 4, characterized in that the first heat-foaming material and the second heat-foaming material overlap with the missing portion of the protruding piece in the longitudinal direction.
Citation Information
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