JPH0236802Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an expansion joint device for fire protection in buildings.

Conventionally, extruded aluminum alloy sections have been used for cover plates that cover the gaps between the frames of building expansion joint devices, but with these cover plates, fire can enter the building through the gaps between the frames in the event of a fire. It is not always sufficient to prevent Therefore, in consideration of the above circumstances, in the present invention, fire prevention steel plates are attached to the edging material to cover the gaps between the frames in order to prevent the fire from entering the building in the event of a fire. .

Hereinafter, the present invention will be described in detail based on specific embodiments shown in the accompanying drawings.

The drawing is a horizontal cross-sectional view of the vertical exterior wall of the building, with the upper part of the diagram showing the outside of the building and the lower part showing the inside of the building. Reference numeral 1 denotes a frame, and gaps are provided between the frames 1 to absorb expansion and contraction.

A plurality of edge members 2, which are extruded aluminum alloy members and are generally rectangular in cross section, are run along the outer edges of both opposing building blocks 1, and are fixed by welding to anchor bolts 3 that protrude from the surface of the building blocks 1. The angle member 4 is screwed with screws 6 through the clamping plate 5.

The edge material 2 consists of a horizontal base piece 8 and a rising piece 9 that stands up from the inner end of the base piece 8, and a dovetail groove 10 is provided at the intersection of the base piece 8 and the rising piece 9. 10, the engaging protrusions 12 protruding from the lower surface near both ends of the water stop plate 11, which is a through member made of synthetic resin such as vinyl chloride, are formed into a frame with the center part of the water stop plate 11 projecting downward in the shape of a gutter. Cover the gap between 1 and lock.

In addition, a support groove 13 is formed on the outside of the upper end of the rising piece 9 of the edge material 2, and a watertight gasket 14 is inserted therein.
Insert.

The cover plate 15 is made of a flat extruded aluminum alloy member and is sized to cover the gap between the building blocks 1. The cover plate 15 has support grooves 16 on the inner surface of both ends thereof.
A watertight gasket 17 is fitted therein.

This cover plate 15 is placed on the gasket 14 so as to cover the gap between the frame members 1, and the gaskets 17 at both ends are in elastic contact with the frame member 1, and the upper end of the rising piece 9 of the edge member 2 is projected inside. 18
The ends of the W spring clips 20 are engaged with both horizontal engaging pieces 19 having the same shape, and the round machine screws 21 are inserted through the cover plate 15 from the outdoor side to the indoor side.
is screwed onto the roller nut 22 attached to the lower surface of the center of the spring clip 20 and fixed.

In addition, a hanging piece 23 perpendicular to the outside of the support groove 13 of the edge material 2 and a rising piece 2 standing up on the outside of the base piece 8
The clamping plate 5 is brought into contact with the inner surface of each of the members 4, and the angle member 4 is brought into contact with the outer surface of the hanging piece 23 and the rising piece 24, and is screwed with a screw 6.

Reference numeral 25 is caulking.

Support piece 3 with engagement piece 19 of edge material 2 extended outward
A steel plate 32, which is a fire prevention through member, is rotatably attached to 1. That is, since the steel plate 32 is hinged, it is rotatably supported. The steel plates 32 pivotally attached to both edge members 2 are set so as to contact and overlap at the center so as to completely cover the gap between the frame members 1, and an elliptical hole 33 is formed in the portion through which the round machine screw 21 is inserted. engrave.

FIG. 2 shows another example of the hinge portion in which the bulging head 33 at the proximal end of the steel plate 32 is fitted onto the outer surface of the edge material 2 in FIG. 1.

As mentioned above, the present invention involves attaching a water stop plate that covers the gap between the frames to the edge material running along the edges of both building frames, and attaching a watertight gasket to the upper end of the rising piece of the edge material. After fitting, cover the gap between the frames with a cover plate that extends beyond both edge materials in anticipation of the amount of expansion and contraction, place the cover plate on the gasket, and engage the end of the W spring clip with the edge material. In an expansion joint device for a building, a round machine screw inserted from the outdoor side of the cover plate to the indoor side is screwed and fixed to a roller nut attached to the lower surface of the center of a W spring clip. The ends are rotatably supported so that the tips protrude toward the center of the gap between the frames, and both fire prevention steel plates are provided so as to contact and overlap at the center so as to completely cover the gap between the frames. This is a fire protection expansion joint device for buildings that has oval holes carved into the overlapping parts of both fire protection steel plates into which round machine screws are inserted, and in the event of a fire, it will completely prevent the fire from entering the building.

In addition, in the present invention, since the gap is doubled in the center, it can sufficiently resist fire.

The fire prevention steel plate of this invention is placed close to the indoor side of the cover plate, so even if a fire were to infiltrate, it would not penetrate into the gap and would be flush with the indoor surface of the frame. It can be stopped. Furthermore, since the preventive steel plates are pivoted at their base ends and overlapped at their distal ends, they can completely follow the expansion and contraction of the building frame.

Furthermore, the steel plate of the present invention can be made of a fireproof type if necessary. Instead of installing the steel plates up front, it is possible to attach them later after attaching edging materials only in areas where fire protection is required, and the steel plates can be installed quickly on the surface of the structure.

[Brief explanation of drawings]

FIG. 1 is a horizontal cross-sectional view of a specific embodiment of the present invention, and FIG. 2 is a vertical cross-sectional view of another hinge portion of the present invention. 1...Structure, 2...Edge material, 11...Water stop plate, 9
...Rising piece, 14...Gasket, 15...
...Cover plate, 20...W spring clip, 21...Round machine screw, 22...Roller nut,
32...Fire prevention steel plate, 33...Oval hole.

Claims (1)

[Scope of utility model registration request] A water stop plate that covers the gap between the frames is secured to the edge material that runs along the edges of both frames of the building, and a watertight gasket is fitted to the upper end of the rising piece of the edge material to close the gap between the frames. Cover with a cover plate that extends beyond both edge materials to allow for expansion and contraction, place the cover plate on the gasket, engage the end of the W spring clip with the edge material, and move the cover plate from the outdoor side to the indoor side. In an expansion joint device for a building, in which a round machine screw inserted through the W spring clip is screwed and fixed to a roller nut attached to the lower surface of the center of the W spring clip, the base end of a fire prevention steel plate is rotatably supported on the outer surface of both edge members. Both fire prevention steel plates are provided so that their tips protrude toward the center of the gap between the frames, and they contact and overlap at the center so as to completely cover the gap between the frames, and a circle is placed in the overlapping area of both fire prevention steel plates. A fire protection expansion joint device for a building, characterized by having an oval hole carved into it through which a machine screw is inserted.