JPS6311210Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an expansion joint device for floors, corridors, etc. of buildings.

Conventionally, expansion joint devices for buildings have a structure in which bases are fixed to the edges of mutually opposing frames of the joint part of a building, and a cover plate that covers the gap between both bases is fixed to one of the bases. something is known.

However, this is only useful if both bases are simply displaced relative to each other along the plane of the cover plate;
If the relative displacement between the two bases includes a displacement component in a direction that intersects the surface of the cover plate, an unreasonable force is applied to the cover plate, causing the cover plate 10 to
It has the disadvantage that it can be bent or torn off.

The present invention has been proposed to solve the above-mentioned drawbacks, and the details thereof will be explained below based on the drawings.

1 and 2 show an embodiment of the present invention,
The building expansion joint device illustrated in both figures is installed between a pair of left and right concrete frames 1.

That is, a base 3 running along the edge 2 is fixed to the edge 2 running front and rear of each frame 1, and the edge material 5 is attached to the base 3 via a hinge 4 along the front-rear axis parallel to the edge 2. It is pivotably mounted around the center, and a receiving surface 7 facing the joint surface is formed on the swinging arm portion 6 of the edge member 5. The edge member 5 has an engaging portion 8 on its back side, and a tension coil spring 9 is mounted across the engaging portions 8 of both edge members 5. The center of the coil of this coil spring 9 is
The receiving surfaces 7 of both edge members 5 are located on the same plane that is related to the expansion and contraction of the coil spring.

The cover plate 10 is slidably received by each receiving surface 7 at the left and right ends of the back surface thereof, and
A bracket 11 fixed to the center of the rear surface in the left-right direction is screwed into the center of the coil spring 9 to prevent it from lifting off from both receiving surfaces 7.

Here, if the two main bodies 1 simply move away from each other to the left and right, the coil spring 9 will stretch and the overlap between the cover plate 10 and both the receiving surfaces 7 will become smaller. When the two main bodies 1 simply approach from the left and right, the coil spring 9 contracts and the overlap between the cover plate 10 and the receiving surfaces 7 increases.

Next, if both bodies 1 shift vertically, the second
As shown in the figure, both edge members 5 swing equiangularly in the same direction, and as the distance between the swing axes of both edge members 5 increases, the coil spring 9 stretches, and the cover plate 10 and both receiving surfaces The overlap with 7 will be small. At this time, since both receiving surfaces 7 are located on the same plane, no unreasonable force is applied to the cover plate 10.

In this embodiment, a metal fitting 14 is fastened with a nut 13 to an anchor bolt 12 implanted in the frame 1, and a base 3 is fixed to the metal fitting 14 with screws 15. The structure fixed to 1 is not limited to this.

Furthermore, in this embodiment, since the base 3 and the edge material 5 are formed of extruded aluminum alloy members, the groove 16 with a circular cross section provided over the entire length of the base 3 on one side is formed on the other side. The hinge part 4 is formed by fitting a rotary shaft part 17 with a circular cross section provided over the entire length of a certain edge material 5, but the hinge part 4 is formed separately from the base 3 and the edge material 5. It may be something you have.

Furthermore, in this example, an engagement groove 18 is provided at the lower end of the base 3 and runs along the entire length of the base 3, and each edge of the water stop plate 19 made of vinyl chloride is engaged with each engagement groove 18. Although the structure is designed to prevent precipitation from flowing downward from the joint portion, such a configuration is not essential to the present invention.

In addition, in this example, a lid 20 extending in an arc shape from the upper part of the edging material 5 toward the base 3 is provided over the entire length of the edging material 5, and the lid 20 is provided over the entire length of the base 3. A concave groove 21 is provided to receive the edge material 5.
A lid 20 closes the gap between the base 3 and the upper part of the edge material 5 that opens and closes when the base 3 swings, preventing dust from entering between the base 3 and the edge material 5 and preventing high heels from stepping on the gap. However, this is not an essential configuration for the present invention.

FIG. 3 shows the main part of a modification of the above embodiment,
This is characterized in that the lid 20 is formed of an elastic material separately from the edge material 5, and the lid 20 is engaged with a locking groove 22 provided over the entire length of the upper part of the edge material 5. The rest of the configuration is the same as the previous example.

Further, in each of the above embodiments, the coil spring 9 is integrated, but it is also possible to prepare a pair of left and right coil springs and to modify the structure so that each edge member is connected to the bracket by a different coil spring.

As mentioned above, the present invention fixes bases running along each edge to the edges of both mutually opposing frames of the joint part of a building, and attaches each edge material to the outside of each base. Each edge member is provided with a receiving surface facing the joint surface on its swinging arm, and an engaging part is formed on the back side of the receiving surface, so that both edge members Position the coil center of the tension coil spring, which is attached across the retaining pieces, on the straight line connecting the pivot axes of both edge members, so that both bearing surfaces are positioned on the same plane, and a cover plate is placed on both bearing surfaces. Both ends of the back surface are slidably received, and a bracket connected to the coil spring is fixed to the middle part of the back surface of the cover plate. Even if the cover plate is shifted without any movement, or even if the two building blocks are displaced relative to each other in three dimensions, no excessive force is applied to the cover plate, and the cover plate will not be bent or torn off. , the joint between the bases can be sufficiently covered. In particular, if a lid is provided at the swinging tip of the edge material to close the gap between the base and the swinging tip of the edge material, the entire seam will always be covered, and this will improve the appearance of the seam. It is extremely advantageous from this point of view as well.

[Brief explanation of the drawing]

1 and 2 show an embodiment of the present invention,
FIG. 1 is a vertical cross-sectional view in a standard state, and FIG. 2 is a vertical cross-sectional view in a building fluctuation state. FIG. 3 is a longitudinal sectional view of a main part of a modification of the above embodiment. 1...Structure, 2...Edge, 3...Base, 5...
Edge material, 6... Swinging arm portion, 7... Receiving surface, 8... Engaging portion, 9... Tension coil spring, 10... Cover plate, 11... Bracket.

Claims (1)

[Scope of utility model registration request] A base running along each edge is fixed to the edges of both building frames facing each other at the joint part of the building, and each edge material is swung around an axis parallel to each edge on the gap side of each base. movably pivoted, and each edge member is provided with a flat receiving surface for supporting the cover plate,
A swinging arm extending from the back side of the receiving surface and having a rotating shaft portion at the tip and pivotally attached to the base is formed, and is located closer to the center of the gap than the swinging arm on the back side of the receiving surface. An engaging part is provided, and the coil center of the tension coil spring, which is suspended across the engaging parts of both edge members, is positioned on a straight line connecting the pivot axes of both edge members, so that both receiving surfaces are on the same plane. , and both ends of the back surface of the cover plate are placed on both receiving surfaces to be slidably received, and a bracket connected to the coil spring is fixed to the middle part of the back surface of the cover plate. Expansion joint equipment for buildings.