JPH081467U - Expansion joints - Google Patents

Abstract

(57) [Abstract] [PROBLEMS] To provide an expansion joint that can absorb large strains in the vertical and horizontal directions and in the inclination direction, and has a lightweight and simple structure. [Structure] In an expansion joint provided in a gap for absorbing strain in a building, fixed to each edge of the building sandwiching the gap, a sliding groove extending in the longitudinal direction is formed on the upper surface, and an opposing surface is formed. A pair of frame bases forming engaging plate engaging grooves extending in the longitudinal direction, W-shaped engaging plates engaging both end edges with the engaging plate engaging grooves, and each frame described above. A hanging plate that is slidably and vertically slidably suspended by a slider that is slidably fitted in a sliding groove of a base, and is suspended and carried by the locking plate. , A cover plate fixed to the hanging plate and covering both frame bases.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an expansion joint for covering a gap in a building, and more particularly to an expansion joint having a large strain absorption width.

[0002]

[Prior art]

 Buildings are constantly distorted due to expansion and contraction due to temperature changes, unequal subsidence, earthquakes, etc., and a large structure has a gap structure for the purpose of preventing damage to the building due to the distortion. Conventionally, various expansion joints have been used as a structure for covering this gap.

In this type of conventional expansion joint, as shown in FIG. 5, a pair of frame bases 50, 50 are fixed to the ends of the floors a, a ', respectively, and the frame bases 50, 50 are fixed. A water stop plate 51 is installed on the bottom of the space, and the upper parts of the frame bases 50, 50 are connected via a locking plate 52 having a W-shaped cross section, and the roller nut is attached to the locking plate 52. The structure is such that a fastening screw 55 is screwed and fastened from a cover plate 54 hung over the upper surfaces of both frame bases 50 and 50 to 53, and the cover plate 54 is constructed by the elasticity of the locking plate 52. It is installed in the gap.

[0004]

[Problems to be solved by the device]

 However, as the size of the building has increased in recent years, the width of the gap has become wider and the distortion in the vertical and horizontal directions has also become larger. In the above configuration, since there is no means for sliding the cover plate 54 in the longitudinal direction with respect to the locking plate 52, locking The plate 52 and the frame base 50 must absorb the strain in the longitudinal direction, which causes a problem that a sufficient strain tolerance cannot be obtained.

The present invention has been made in view of the above problems, and an object thereof is to provide an expansion joint that can sufficiently absorb large strains in the vertical and horizontal directions and the inclination direction, and that has a lightweight and simple structure. It is what

[0006]

[Means for Solving the Problems]

 The expansion joint according to the present invention is an expansion joint to be installed in a gap for strain absorption of a building. Each expansion joint is fixed to both edges of the structure sandwiching the gap, and a sliding groove extending in the longitudinal direction is formed on the upper surface. At the same time, a pair of frame bases having engaging plate engaging grooves extending in the longitudinal direction on opposing surfaces, and a W-shaped engaging plate engaging both end edges with the engaging plate engaging grooves. Each frame is slidably and vertically slidably mounted on a slide groove slidably fitted in the sliding groove of the frame base, and is suspended and carried by the locking plate. The gist is that it is composed of a hanging plate and a covering plate that is fixed to the hanging plate and covers both frame bases.

[0007]

[Action]

 Therefore, when the structure is displaced relative to the structure due to expansion and contraction due to temperature change, unequal subsidence, or an earthquake, there is a gap between the two frame bases fixed with the gap between the structures by the locking plate. Since the structure is such that the covering plate is fixed to the hanging plate that is suspended and fixed so that it can be slidably displaced and tilted in the direction in which the Can be absorbed.

[0008]

【Example】

 An embodiment of an expansion joint according to the present invention will be described below with reference to the drawings.

FIGS. 1 to 3 show an embodiment of an expansion joint for floors, where reference numerals 1 and 1 are frame bases made of aluminum form material, and constructions facing each other with a gap therebetween. The angle members 2 and 2 fixed to the ends of the objects a and a'are fixed by fastening members such as bolts 3 respectively.

The frame base 1 is formed by integrally projecting a sliding plate portion 5 extending from one side of the horizontal rod portion 4 along the surface a of the building, and at the top end of the horizontal rod portion 4. A sliding groove 6 having a locking edge 6a extending in the longitudinal direction is formed, and a locking plate engaging groove 7 is formed on the upper end portion and a water stop plate engaging groove 8 is formed on the lower end portion in the longitudinal direction. It is made by integral molding.

Reference numeral 9 is a locking plate in which an elastic band plate portion having an appropriate width is bent and formed so that the front shape becomes a substantially W shape, and locking of the base frames 1 and 1 with both ends facing each other. A nut 11 that engages with the plate engaging groove 7 and is fixed to the rear surface of the through hole formed in the central portion is screwed with the bolt 10.

Sliding elements 6 are fitted in the sliding grooves 6 of the frame bases 1 and 1 so as to be slidable in the longitudinal direction (arrow A), and projectingly provided on the sliding elements 12 and 12. The columnar engaging projections 13 are slidable in the direction of arrow B and in the direction of arrow C with respect to the sliding groove 17 of the hanging plate 16 which is fastened to the back surface of the cover plate 14 with bolts 15 in the lateral direction. It is fitted so that it can be tilted freely. A bolt 10 inserted into a through hole formed in the central portion of the hanging plate 16 is screwed into a nut 11 and tightened with a locking plate 9 to be suspended. The structure will be fixed.

The covering plate 14 has a packing fitting groove 20 for fitting a packing 19 at an end edge portion of a side edge 18 formed on the back surface side of the both edge portions, and both packings 19 are attached to the frame base 1. 1 is slidably abutted on the surface of the sliding plate portion 5. Reference numeral 21 is a gutter-shaped water stop plate made of a soft material such as vinyl chloride resin whose both edges are fitted and fixed in the water stop plate engaging grooves 8 of the base frames 1 and 1 facing each other. is there.

The expansion joint having the above-described structure slides between the frame bases 1 and 1 fixed with a gap between the buildings a and a ′ by the locking plate 9 in the direction in which the gap extends, the inclination direction, and the lateral direction. Since the structure is such that the cover plate 14 is fixed to the hanging plate 16 that is suspended and fixed so as to be displaceable, the length of the hanging plate 9 is adjusted to the width of the covering plate 14 having a sufficient width to cover the gap. Therefore, it is possible to deal with a building with a wide gap by simply changing the length, and it is possible to sufficiently absorb the displacement in the extending direction of the gap.

Next, FIG. 4 shows an embodiment of an expansion joint for wall surfaces or ceiling surfaces, and a description will be given of a portion where the shape of the expansion joint is different from that of the expansion joint for floor surface.

The base frames 1 and 1 have a substantially L-shaped cross section so that the water stop plate engaging groove 8 is located on the opposing surface side of the gap. In addition, the cover plate 14 has a packing fitting groove 20 for fitting a packing 19 at the edge of a side edge 18 formed on the back surface of both edges, and both packings 19 are attached to a wall surface or a ceiling surface of a building. It slidably abuts and covers both frame bases 1 and 1.

[0017]

[Effect of device]

 As described above, the expansion joint according to the present invention has a structure in which the cover plate is fixedly mounted on the hanging plate suspended in the frame base so as to be three-dimensionally displaceable, so that the expansion joint due to the temperature change of the building It is possible to sufficiently absorb large strains in the vertical and horizontal directions and the inclination direction due to expansion and contraction, unequal settlement, earthquakes, etc., and it is possible to achieve weight reduction because it is a structure that can be composed of aluminum pull material. It has features such as being able to do so, and the practical effect after implementing the present invention is extremely large.

[Brief description of drawings]

FIG. 1 is a front cross-sectional view showing a construction example of an expansion joint for floors according to the present invention in a construction state.

FIG. 2 is an exploded perspective view of the present invention.

FIG. 3 is a partially cutaway plan view.

FIG. 4 is a front sectional view of a construction state showing an embodiment of the expansion joint for wall surface or ceiling surface according to the present invention.

FIG. 5 is a front sectional view of a conventional expansion joint in a construction state.

[Explanation of symbols]

 a, b Structure G Gap 1 Base frame 2 Angle member 6 Sliding groove 7 Locking plate engaging groove 8 Water stop plate engaging groove 9 Locking plate 12 Slider 14 Cover plate 16 Hanging plate 17 Sliding Groove 19 Packing 21 Water stop plate

Claims (1)

[Scope of utility model registration request] 1. An expansion joint to be installed in a strain absorbing gap of a building, which is fixed to both edges of the building sandwiching the gap to form a sliding groove extending in the longitudinal direction on the upper surface and facing each other. A pair of frame bases each having a locking plate engaging groove extending in the longitudinal direction on the surface, a W-shaped locking plate engaging both end edges with the locking plate engaging groove, A suspension that is slidably and vertically slidably suspended by a slider that is slidably fitted in the sliding groove of each frame base, and is suspended and carried by the locking plate. An expansion joint comprising a plate and a cover plate fixed to the hanging plate and covering both frame bases.