JP7655818B2 - Fittings - Google Patents

Description

The present invention relates to building materials such as smoke exhaust windows.

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 heated foam material to catch oil leaking from the oil damper in the event of a fire.

Publication No. 7-2943 JP 2014-74316 A

However, in the fittings of Patent Document 2, the heated foaming material is provided near the oil damper, so depending on the timing of when the heated foaming material foams, it may not be able to catch the oil leaking from the oil damper, and the oil may leak outside.

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, and is characterized in that 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 a fitting as 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 stile, or protruding from the bottom stile 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 stile, 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 center side in the longitudinal direction, and the missing portion of the hinge portion is provided on both end sides 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 the heat of 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 as described in 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.

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 third aspect of the present invention, the oil flow path can be lengthened to delay the time it takes for the oil to flow outside.
According to the fourth aspect of the present invention, the space (oil flow path) can be efficiently blocked by the heated foaming material.
According to the fifth aspect of the present invention, the oil flow path can be efficiently blocked by the two heated foaming materials disposed in the vicinity of the missing portion of the protruding piece.

FIG. 2 is a front view of the fitting according to the first embodiment of the present invention as viewed from the outdoor side. 2 is a cross-sectional view taken along line AA of FIG. 1. This is a cross-sectional view taken along line B-B of FIG. This is a cross-sectional plan view of the main parts of the fixture, showing the upper surface configuration of the lower frame. 4, (b) is a sectional view taken along line DD in FIG. 4, and (c) is a sectional view taken along line EE in FIG. 4 (when foamed by heating). A side cross-sectional view of the main parts of a fitting according to a second embodiment of the present invention. A side cross-sectional view of the main parts of a fitting according to a third embodiment of the present invention.

The following describes an embodiment of the present invention with reference to the drawings. In Figs. 1 to 3, 1 is a fitting, which comprises an outward-tilting smoke exhaust window 1a (hereinafter simply referred to as the smoke exhaust window 1a) and a fixed window 1b that is integrally formed below the smoke exhaust window 1a. The fixed window 1b may be omitted or may be formed above the smoke exhaust window 1a. The following describes the smoke exhaust window 1a, which is the main part of the present invention.

The smoke exhaust window 1a comprises a frame 2 placed in an opening in the building's framework, a screen 3 placed on the frame 2, a hinge section 4 provided between the bottom frame 22 of the frame 2 and the bottom stile 32 of the screen 3, and an oil damper 5 provided between the vertical frame 23 of the frame 2 and the vertical stile 33 of the screen 3, and is configured so that the screen 3 can be opened and closed with the hinge section 4 as a pivot point.

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, extruded shapes or bent parts.

The shoji screen 3 comprises a frame body 34 that 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 made of, for example, an extruded or bent material, a glass 35 that is arranged on the inner circumference of the frame body 34, a setting block 36 that is attached to the lower frame 32 and supports the weight of the glass 35, a lower frame pressing edge 37 that 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 that is attached to the vertical frame 33 and presses down on the left and right vertical edges of the glass 35 from the outside.

The hinge section 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 engagement state between 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.

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 of the shoji screen 3, and assists or cushions the opening and closing 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.

Next, the characteristic configuration of the fitting 1 of this embodiment will be explained with reference to Figures 2 to 5.

As shown in Figures 2, 4, and 5, the fitting 1 is arranged in parallel on the indoor side of the hinge section 4 and has a weight support piece 6 (protruding piece) that protrudes from the upper surface of the bottom frame 22 toward the underside of the bottom stile 32. The weight support piece 6 in this embodiment is an extruded member that is L-shaped in side cross section, and has 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 underside of the bottom stile 32 when the shoji screen 3 is closed. The weight support piece 6 is not limited to an extruded member, and may be made of a square pipe, a bent part, or the like.

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 section 4 and the weight support piece 6, which reduces concentrated load on the hinge section 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.

In this type of fitting 1, rainwater and other water that enters the inner periphery of the frame 2 is discharged to the outdoors via the upper surface of the lower frame 22, and rainwater and other water that enters the inner periphery of the shoji screen 3 flows into the upper surface of the lower frame 22 via the drainage holes 32a formed in the lower frame 32, and is discharged to the outdoors from here. 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 lower 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 other water on the lower frame 22 can be discharged to the outdoors via the missing portions 4a, 6a.

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 perspective of preventing the fire from spreading outdoors, it is preferable to prevent the oil leaking from the oil damper 5 from flowing outdoors.

As shown in Figures 3 and 4, when the shoji screen 3 is closed, the oil damper 5 is located inside the room relative to the weight support piece 6, and when oil leaks from the oil damper and flows onto the bottom frame 22, it may flow 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 at the center in the longitudinal direction of the bottom frame 22, and the missing part 4a of the hinge part 4 is provided at both ends in the longitudinal direction of the bottom frame 22. In this way, the oil flow path R for oil leaking from the oil damper 5 can be lengthened, delaying the time it takes for the oil to flow outside.

As shown in Figures 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, bottom frame 32, hinge section 4 and weight support piece 6. Such a fixture 1 allows rainwater and the like to drain during normal times, but blocks the space S2 with the heated foaming material 7 in the event of a fire (see Figure 5 (c)), preventing oil leaking from the oil damper 5 from leaking outside.

As shown in FIG. 4, the heated foaming material 7 includes a first heated foaming material 7a arranged in a flow path 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 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 oil flow path R can be efficiently blocked by the two heated foaming materials 7a and 7b arranged near the missing portion 6a of the weight support piece 6.

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 changed arbitrarily 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.

According to the present embodiment configured as described above, the fitting 1 comprises a frame 2, a shoji screen 3 arranged on the frame 2, a hinge section 4 provided between the bottom frame 22 of the frame 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 2 and the vertical stile 33 of the shoji screen 3, and opens and closes the shoji screen 3 with 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 with 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 heated foaming material provided on the bottom stile blocks the oil flow path R, preventing oil leaking from the oil damper 5 from flowing out to the outdoors.

In addition, because the heated foaming material 7 is provided on the lower frame 23, it can be positioned farther away from the oil damper 5 than if it were provided in the vicinity of the oil damper 5 (vertical frame 23 or vertical frame 23). As a result, even if the timing of the heated foaming material 7 foaming 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.

The hinge portion 4 and the weight support piece 6 are arranged on the indoor side of the hinge portion 4 and on the outdoor side of the oil damper 5, and protrude from the lower frame 22 toward the lower frame 32. The hinge portion 4 and the weight support piece 6 are arranged in parallel along the longitudinal direction of the lower frame 22, and have 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.

In addition, the missing portion 6a of the weight support piece 6 is provided on the center side in the longitudinal direction of the lower frame 22, and the missing portion 4a of the hinge portion 4 is provided on both ends in the longitudinal direction of the lower frame 22, so that the oil flow path R can be lengthened and the time it takes for the oil to flow outside can be delayed.

In addition, when the heated foaming material 7 foams due to the heat of a fire, it closes 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 close the space S2 (oil flow path R).

The heated foam material 7 includes a first heated foam 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 foam 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 foam material 7a and the second heated foam material 7b overlap the missing portion 6a of the weight support piece 6 in the longitudinal direction of the lower frame 22, so that the two heated foam materials 7a and 7b arranged near the missing portion 6a of the weight support piece 6 can efficiently block the oil flow path R.

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

As shown in Figure 6, the second embodiment of the fixture 1B differs from the previous embodiment in that the weight support piece 6B is formed on the hinge retainer 43B. According to this second embodiment, the hinge retainer 43B also serves as the weight support piece 6B, reducing the number of parts and costs.

As shown in Figure 7, the third embodiment of the fitting 1C differs from the previous embodiment in that the weight support piece 6C is integrally formed to protrude from the lower frame 32 toward the lower frame 22. According to this third embodiment, the weight support piece 6C is integrated with the lower frame 32, which reduces the number of parts and costs.

1, 1B, 1C Door and window 1a Smoke exhaust window 1b FIX window 2 Frame 21 Upper frame 22 Lower frame 23 Vertical frame 24 Screw hole shape 24a Screw hole 3 Shoji screen 31 Upper frame 32 Lower frame 32a Drainage hole 33 Vertical frame 34 Frame 35 Glass 36 Setting block 37 Lower frame pushing edge 38 Vertical frame pushing edge 4 Hinge portion 4a Missing portion 41 Lower frame side hinge piece 42 Lower frame side hinge piece 43, 43B Hinge holding member 5 Oil damper 6, 6B, 6C Self-weight support piece 61 Screw 6a Missing portion 62 Fixing piece 63 Protruding piece 7 Heated foaming material 7a First heated foaming material 7b Second heated foaming material R Oil flow path S1 Space S2 Space

Claims (5)

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. The hinge portion is disposed on the indoor side and on the outdoor side of the oil damper, 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. 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 portions of the hinge portion are provided on both ends in the longitudinal direction. The fitting according to claim 3, characterized in that the heated foaming material, when foamed by heat from a fire, seals the space surrounded by the bottom frame, the bottom stile, the hinge portion, and the protruding piece. 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.

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