JP7701211B2 - 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 uses the hinge as a pivot point to open and close the shoji screen. For example, the fitting described in Patent Document 1 constitutes an outward-tilting smoke exhaust window that uses the hinge as a pivot point to open the shoji screen to the outdoors.

Publication No. 7-2943

However, with this type of fitting, the weight of the screen when closed is concentrated on the hinge area, leaving room for improvement in terms of support strength and fire resistance.

The present invention was created in consideration of the above-mentioned actual situation and with the aim of solving these problems, and the invention of claim 1 is a fitting comprising a frame body, a shoji screen placed on the frame body, and a hinge part provided between the bottom frame of the frame body and the bottom stile of the shoji screen, and which opens and closes the shoji screen using the hinge part as a pivot point, and which is provided with a weight-supporting piece that is placed on the indoor side of the hinge part and protrudes from the bottom frame toward the bottom stile or protrudes from the bottom stile toward the bottom frame, and when in a closed state, the weight of the shoji screen is supported at least at two points, the hinge part and the weight- supporting piece, and the hinge part and the weight-supporting piece are arranged in parallel along the longitudinal direction of the bottom frame or the bottom stile, and are provided with a missing part that is missing in the longitudinal direction .
The invention of claim 2 is a fitting as described in claim 1, further comprising an oil damper arranged between the vertical frame of the frame body and the vertical stile of the shoji screen, wherein the oil damper is located on the indoor side of the weight-supporting piece when the shoji screen is closed, the missing portion of the weight-supporting piece is arranged on the central side in the longitudinal direction, and the missing portions of the hinge portion are arranged on both ends in the longitudinal direction.
The invention of claim 3 is a fitting as described in claim 2, characterized in that the bottom frame is provided with a heated foaming material that foams due to heat from a fire and seals the space surrounded by the bottom frame, the bottom frame, the hinge portion and the weight support piece.
The invention of claim 4 is a fitting described in any one of claims 1 to 3, characterized in that the hinge portion comprises a lower frame side hinge piece formed on the lower frame, a lower frame side hinge piece formed on the lower frame and rotatably engaging with the lower frame side hinge piece, and a hinge pressing member attached to the lower frame and maintaining the engagement state between the lower frame side hinge piece and the lower frame side hinge piece, and the weight support piece is formed on the hinge pressing member.

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 can be increased in normal times. In addition, even when the screen screen is thermally deformed, the weight of the screen screen can be supported in a distributed manner at least at two points, so the fire resistance can be improved.
Furthermore , while supporting the weight of the shoji screen at two points, rainwater and other water that resides above the bottom frame can be drained to the outside.
According to the second aspect of the present invention, the oil flow path of the oil leaking from the oil damper can be lengthened, thereby delaying the time it takes for the oil to leak outside.
In addition, according to the invention of claim 3 , in the event of a fire, the space surrounded by the lower frame, lower sill, hinge portion and weight support piece (the oil flow path leading to the outdoors) can be blocked with heated foam material, preventing oil leaking from the oil damper from leaking outdoors.
According to the fourth aspect of the present invention, the hinge pressing member can also serve as the weight supporting 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 DD cross-sectional view of FIG. 4, and (c) is an EE cross-sectional view of 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 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 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 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 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 provided with a self-weight support piece 6 that is arranged in parallel on the indoor side of the hinge part 4 and protrudes from the upper surface of the bottom frame 22 toward the underside of the bottom frame 32. The self-weight support piece 6 in this embodiment is an extruded member that is L-shaped in side cross section, and integrally includes 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 frame 32 when the shoji screen 3 is closed. Note that the self-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 bottom frame 22, and rainwater and other water that enters the inner periphery of the shoji screen 3 flows into the upper surface of the bottom frame 22 via the drainage holes 32a formed in the bottom 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 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 other water on the bottom 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, the underside of the lower frame 32 is provided with a heated foaming 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 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 in the event of a fire, the heated foaming material 7 blocks the space S2 (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, and 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 opens and closes the shoji screen 3 with the hinge section 4 as a pivot point. The fitting 1 is provided with a weight support piece 6 that is arranged on the indoor side of the hinge section 4 and protrudes from the bottom frame 22 toward the bottom stile 32, and 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, thereby reducing concentrated load on the hinge section 4 and increasing the support strength of the shoji screen 3 in normal times. In addition, since the weight of the shoji screen 3 can be supported at least at two points even during thermal deformation, fire resistance can also be improved.

The hinge section 4 and weight support piece 6 are arranged in parallel along the longitudinal direction of the bottom frame 22 and have missing sections 4a, 6a that are missing in the longitudinal direction, so that the weight of the shoji screen 3 can be supported at two points while rainwater and the like on the bottom frame 22 can be drained to the outside.

The oil damper 5 is further provided between the vertical frame 23 of the frame body 2 and the vertical frame 33 of the shoji screen 3. When the shoji screen 3 is closed, the oil damper 5 is located on the indoor side of the weight support piece 6, 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 part 4 is provided on both ends in the longitudinal direction of the lower frame 22. This lengthens the oil flow path R for oil leaking from the oil damper 5, thereby delaying the time it takes for the oil to flow outside.

The lower frame 32 is provided with a heated foaming material 7 that foams due to heat from a fire and seals the space S2 surrounded by the lower frame 22, the lower frame 32, the hinge section 4, and the weight support piece 6, preventing oil leaking from the oil damper 5 in the event of a fire from leaking outside.

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 fixture 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 Fitting 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 (4)

A frame body,
A shoji screen disposed on the frame body;
A hinge portion is provided between the lower frame of the frame body and the lower frame of the shoji screen,
A fitting that opens and closes the shoji screen using the hinge portion as a pivot point,
A weight support piece is provided which is disposed on the indoor side of the hinge portion and protrudes from the lower frame toward the lower frame, or protrudes from the lower frame toward the lower frame,
The weight of the shutter in the closed state is supported at least at two points, the hinge portion and the weight support piece,
A fixture characterized in that the hinge portion and the weight support 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 . Further provided with an oil damper provided between the vertical frame of the frame body and the vertical frame of the shoji screen,
The oil damper is located on the indoor side of the weight support piece when the screen is in a closed state,
The missing portion of the weight support piece is provided on the center side in the longitudinal direction,
The fixture according to claim 1 , characterized in that the missing portion of the hinge portion is provided on both ends in the longitudinal direction. The fixture according to claim 2 , characterized in that the bottom frame is provided with a heat-foaming material that foams due to heat from a fire and seals the space surrounded by the bottom frame, the bottom frame, the hinge portion and the weight support piece. The hinge portion is
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;
a hinge pressing member attached to the lower frame and maintaining an engagement state between the lower frame side hinge piece and the lower stile side hinge piece;
The fixture according to any one of claims 1 to 3 , characterized in that the weight support piece is formed on the hinge pressing member.

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