JPH0411696B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to improvements in expansion joints that cover gaps in buildings, and particularly relates to expansion joints having a large strain absorption width.

[Conventional technology]

Buildings are constantly subject to distortion due to expansion and contraction due to temperature changes, uneven settlement, earthquakes, etc., and in order to prevent damage to buildings due to such distortion, large buildings are constructed with gap structures. Various expansion joints have been used to cover this gap.

This type of conventional expansion joint has a pair of frame bases 50, 50 fixed to the ends of floors a, a', respectively, as shown in FIG. 51, the upper parts of the frame bases 50, 50 are connected via a locking plate 52 having a W-shaped cross section, and a roller nut 53 is attached to the locking plate 52.
The structure is such that a fastening screw 55 is screwed and fastened from a covering plate 54 extending over the upper surfaces of both frame bases 50, 50, and the elasticity of the locking plate 52 causes the covering plate 5 to tighten.
4 is installed in the gap between buildings.

[Problem that the invention seeks to solve]

However, as buildings have become larger in recent years, the width of the gap has become wider and the strain in the vertical and horizontal directions has also increased.
The locking plate 5 has no sliding means in the longitudinal direction.
2 and the frame base 50, and there was a problem in that a sufficient strain tolerance could not be obtained.

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

[Means for solving problems]

The expansion joint according to the present invention is an expansion joint installed in a strain-absorbing gap of a building, and has sliding grooves fixedly installed on both edges of the building with the gap in between, and extending in the longitudinal direction on the top surface. and a pair of frame bases each having a longitudinally extending locking plate engaging groove on opposing surfaces, and a W-shaped locking member having both ends engaged with the locking plate engaging groove. The frame is hung so as to be slidable in vertical and horizontal directions and tilted via the plate and sliders that are slidably fitted into the sliding grooves of each of the frame bases, and suspended by the locking plate. The gist of this is that it is constructed of a hanging plate which is carried by a carrier, and a cover plate which is fixed to the hanging plate and covers both frame bases.

[Effect]

Therefore, if a building undergoes relative displacement through a gap due to expansion and contraction due to temperature changes, uneven settlement, earthquakes, etc., a locking plate should be installed between the two frame bases fixed across the gap between the buildings. The structure is such that the cover plate is fixed to a hanging plate that is suspended and fixed so that it can be slid and tilted in the direction in which the gap extends, as well as in the inclination and lateral directions. Can be absorbed sufficiently.

〔Example〕

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

1 to 3 show an example of an expansion joint for a floor surface, and reference numerals 1 and 1 are frame bases made of aluminum formwork materials, and buildings a, It is fixed by fastening members such as bolts 3 to angle members 2, 2 fixed to each end of a'. The frame base 1 is formed by integrally protruding a sliding plate part 5 extending from one side of the horizontal rod part 4 along the surface a of the building, and the top end of the horizontal rod part 4 has a sliding plate part 5 extending in the longitudinal direction. A sliding groove 6 with an extending locking edge 6a
, and a locking plate engaging groove 7 is integrally molded on the side surface in the longitudinal direction at the upper end thereof, and a stop plate engaging groove 8 is formed at the lower end thereof. Further, reference numeral 9 denotes a locking plate formed by bending an elastic band plate material of an appropriate width so that the front shape is approximately W-shaped. 7 and a bolt 10 on the back side of the through hole drilled in the center.
A nut 11 that is screwed together is fixed. A slider 12 is fitted into the sliding groove 6 of both frame bases 1, 1 so as to be slidable in the longitudinal direction (arrow A), respectively.
The cylindrical engagement protrusions 13 protruding from each of the sliders 12, 12 are connected to the sliding grooves 17 of the hanging plate 16, which is fastened to the back surface of the cover plate 14 in the transverse direction with bolts 15, as indicated by arrows. The bolts 10 inserted into the through holes drilled in the center of the hanging plate 16 are screwed together with the nuts 11. It has a structure in which it is tightened with the locking plate 9 and fixed in place. The cover plate 14 has a gasket fitting groove 20 in which a gasket 19 is fitted in the end edge of the side edge 18 formed on the back side of both edges, and
Both gaskets 19 are slidably abutted on the sliding plate portion 5 of the frame bases 1,1. Further, reference numeral 21 denotes a gutter-shaped water stop plate formed of a soft material such as vinyl chloride resin, whose both edges are fitted and fixed in the water stop plate engaging grooves 8, 8 of the opposing base frames 1, 1, respectively. be.

The expansion joint with the above configuration is capable of sliding displacement in the direction in which the gap extends, in the inclination direction, and in the lateral direction by means of a locking plate 9 between the frame bases 1 and 1 fixedly installed across the gap between the buildings a and a'. Since the structure is such that the cover plate 14 is fixed to the hanging plate 16 which is freely suspended and fixed, the cover plate 14 has a sufficient width to cover the gap by the length of the hanging plate 9.
By simply changing the length to match the width of the gap, it is possible to accommodate buildings with wide gaps, and it is also possible to sufficiently absorb displacement in the direction in which the gap extends.

Next, FIG. 4 shows an embodiment of an expansion joint for a wall or ceiling, and a description will be given of portions in which the shapes of the components differ from those of the expansion joint for a floor.

The frame bases 1, 1 have a substantially L-shaped cross section so that the water stop plate engaging groove 8 is located on the side facing the gap. In addition, the covering plate 14 has side edges 18 formed on the back side of both edges.
A gasket fitting groove 20 into which the gasket 19 is fitted is formed at the end edge of the gasket, and both gaskets 19 are slidably abutted against the wall or ceiling surface of the building to cover both frame bases 1,1. It will be done.

〔Effect of the invention〕

As described above, the expansion joint according to the present invention has a structure in which the cover plate is fixed to the hanging plate that is suspended from the frame base so as to be able to move freely in three dimensions, so it expands and contracts due to temperature changes in the building. It is possible to sufficiently absorb large strains in the vertical, horizontal, and inclination directions due to uneven subsidence and earthquakes, etc., and the structure can be constructed from aluminum drawer material, making it possible to achieve weight reduction. It has the following characteristics, and the practical effects after implementation of the present invention are extremely large.

[Brief explanation of drawings]

Fig. 1 is a front cross-sectional view showing an embodiment of the floor expansion joint according to the present invention in a construction state, Fig. 2 is an exploded perspective view of the same, Fig. 3 is a partially cutaway plan view, and Fig. 4 is a partially cutaway plan view. FIG. 5 is a front sectional view showing an embodiment of the expansion joint for a wall or ceiling according to the present invention in an installed state, and FIG. 5 is a front sectional view showing a conventional expansion joint in an installed state. 1...Frame base, 2...Angle member, 6...Sliding groove,
7... Locking plate engagement groove, 8... Water stop plate engagement groove, 9... Locking plate, 12... Slider, 14... Covering plate, 16... Hanging plate, 17... Sliding groove, 19... Packing , 21... Water stop plate.

Claims (1)

[Claims] 1. In expansion joints installed in strain absorbing gaps of buildings, each fixedly installed at the edges of both buildings with the gap in between,
A pair of frame bases each having a sliding groove extending in the longitudinal direction on the upper surface and a locking plate engaging groove extending in the longitudinal direction on the opposing surface; A W-shaped locking plate that engages the edges, and a slider that is slidably fitted into the sliding groove of each frame base, so that the frame can be slid in vertical and horizontal directions and can be tilted. and an expansion joint comprising a hanging plate suspended and supported by the locking plate, and a cover plate fixed to the hanging plate and covering both frame bases.