JPH04185846A - Expandable joint - Google Patents

Abstract

PURPOSE:To provide an enough strength against a wind pressure by a method wherein a gap is covered with two cover plates and a slide plate, and the slide plate is mounted on a positioning lever for interlinking two cover plate support frames. CONSTITUTION:A cover plate 11 is caused to approach and part from a gap between two bodies through a support base frame 1 and a cover plate support frame 6. A slide plate 14 is mounted on the cover plate 11 in a state that a slide notch 16 is slidably carried and suspended from a slide rib 13. The slide plate 14 causes engagement of rollers 23, located to the two ends of two connecting levers 20 and 21 of a positioning member 17, with respective guide grooves 8 of cover plate support frames 6 and normally carries the roller at the central part of a gap. This constitution sufficiently copes with a wide gap.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to an expansion joint that covers a frame gap that appears on the wall of a building.

[Prior Art] Buildings are subject to distortion due to constant expansion and contraction due to temperature changes, uneven settlement, earthquakes, etc., and gap structures are constructed as a means to prevent buildings from being destroyed due to such distortion. Since this gap appears on the wall surface of the pipe, an expansion joint is used as a structure to cover this gap so that it can be enlarged and narrowed and can absorb level differences. As shown in Fig. 5, this type of expansion joint consists of a frame base 50.50 fixed to the wall across the gap G of the building, and a cover plate suspended from the frame base 50.50. 51 as frame base 5
Generally, a structure is used in which the structure is fixed so as to be slidable in the width direction via a hanging member 52 which is extendably installed between 0.50 mm and 50 mm.

[Problems to be Solved by the Invention] However, in recent years, as buildings have become larger, this strain-absorbing gap has become larger, and in the conventional configuration described above, when the gap G becomes larger, approximately 2 Since the covering plate 51, which requires twice the width, is provided on the wall surface, there is a problem that the front structure of the expansion joint disrupts the design of the building. Furthermore, as the gap G becomes larger, the distortion of the building increases, and the degree of freedom required of the expansion joint also increases, and at the same time, strength against wind pressure and the like is particularly required.

The present invention has been made in view of the above-mentioned problems, and provides a new structure that does not make the front structure wider than one gap width, can sufficiently cope with large gaps, and has sufficient strength against wind pressure, etc. Its purpose is to provide an expansion joint.

[Means for Solving the Problems] The expansion joint according to the present invention is an expansion joint installed in a strain absorbing gap appearing in a wall of a building, in which the outer walls of both assemblies are opposed to each other with the gap in between. A pair of support base frames are fixed to opposite surfaces of the edges and have hinge grooves extending in the longitudinal direction on the opposite surfaces, and a cylindrical hinge shaft is pivotably pivoted in the hinge grooves of both support bases. In addition, a pair of cover plate support frames each having a guide groove in the longitudinal direction, and a positioning member having both ends slidably connected to the guide grooves of both cover plate support frames to connect the five cover plate support frames. a pair of cover plates each having an outer edge fixed to each of the cover plate support frames and extending in the gap direction, and having sliding ribs protruding from the back surface of the member that extend in the lateral direction at appropriate intervals; a sliding plate that engages both cover plates and sliding notches formed on both side edges so as to be slidable in the width direction, and whose central portion is rotatably pivotally connected to the center of the positioning member; Its purpose is to cover the gaps between the building blocks.

[Function] According to the above configuration, the sliding plate is allowed to slide in the width direction by fitting the sliding notch and the sliding rib, and the load can be supported by both cover plates, and the sliding plate is pivoted at the center of the positioning member. Therefore, it is always located in the center of one gap. In this way, the gap is covered by two cover plates and the sliding plate, so the front structure of the expansion joint does not become wider than the gap width, and the sliding plate is connected between the support frames of both cover plates. Since it is attached to a rod, it is reinforced and supported in the plane direction, and has sufficient strength against wind pressure, etc.

[Embodiment 1] An embodiment according to the present invention will be described below with reference to FIGS. 1 to 3.

Reference numerals 1 and 1 indicate both assemblies a facing each other with a gap G in between.

This is a support base frame made of aluminum shapes fixed to the facing surface of the outer wall of A, and the side substrate portion 2 constitutes a hinge groove 3 having a C-shaped cross section extending in the longitudinal direction.

A water stop gutter fitting boat 5 extending in the longitudinal direction is integrally formed on the inner edge of the base plate portion 2, and the hinge shaft groove 3 constitutes a notch 4 for inserting the hinge.

Further, reference numerals 6 and 6 denote cover plate support frames made of aluminum shapes that are swingably (arrow A) pivotally connected to the support base frame 1, and have a cover plate mounting rib 7 on the front edge and a cover plate mounting rib 7 on the rear edge. Guide groove 8.

Each hinge rib 9 is formed to extend in the longitudinal direction, and a cylindrical hinge shaft 10 is formed at the end edge of the hinge rib 9 projecting diagonally rearward from the rear edge to be rotatably inserted into the hinge shaft groove 3. The hinge rib 9 is left uncut to a width corresponding to the notch 4 for inserting the hinge, and the hinge shaft 10 is inserted into the hinge shaft groove 3 so as to be swingable within the range of arrow A. Become. Reference numerals 11 and 11 denote cover plates whose outer edges are fixed to the cover plate mounting ribs 7 of the cover plate support frame 6 and protrude in the direction of the gap G, and each has a length approximately 1/3 of the width of the gap G. and has edge ribs 12, 12 formed at the inner end, and has edge ribs 12
Sliding ribs 13 extending laterally from the cover plate support frame 6 at the mounting end are erected and fixed at appropriate intervals. Reference numeral 14 denotes a sliding plate that is suspended from the back side of both the cover plates 11 and 11, and has locking ribs 15 and 15 that have a length of about 273 times the width of the gap G and are bent at both edges. each has sliding notches 16, 16 corresponding to the pitch of the sliding rib 13, and the sliding notch 16 is slidably locked in the direction of arrow B with respect to the sliding rib 13, respectively. Become.

Reference numeral 17 is a positioning member for the sliding plate 14, and a bracket 18 is fixed to the center of the sliding plate 14.
The continuous punches 20 and 21 are crossed in an X-shape with respect to the pin shaft 19 which is set upright, and each is rotatably attached at the center, and
Rollers 23 rotatably attached to both ends of the two continuous punches 20, 21 are fitted into the guide grooves 8 of the two cover plate support frames 6, 6 so as to be slidable in the direction of arrow C. A sliding plate 14 is supported between 6 and 6.

In addition, the reference numeral 24 is a water stop gutter provided between the water stop gutter fitting boats 5, 5 of the surface support base frames 1, 1, and 25 is a water stop gutter provided between the frame a and the cover plate support frame 6. It is a cogging agent with

According to the above configuration, when the gap G between the two assemblies a and a expands or contracts, the cover plates 11.11 move closer to each other or are separated from each other via the support base frame 1 and the cover plate support frame 6. However, since the sliding plate 14 supports and suspends the sliding notch 16 from the sliding rib 13 so as to be slidable (arrow B) on the cover plates 11, 11, slippage may occur at the extraction part. This corresponds to the expansion and contraction of the gap G. In addition, since the sliding plate 14 has a structure in which both the continuous punches 20 and 21 of the first positioning member 17 have rollers 23 that are shafted at both ends thereof, the rollers 23 are fitted into the guide grooves 8 of the cover plate support frames 6 and 6. It is held at the center of the constant gap G.

Further, since both cover plates 11 and 11 swing in the direction of arrow A due to the hinge structure in which the cover plate support frame 6 is a combination of the hinge shaft groove 3 and the hinge shaft 10, both assemblies a,
It is possible to absorb the deviation of the plane a.

In the configuration of the above-mentioned embodiment, the positioning member 17 of the sliding plate 14 is composed of the consecutive punches 20° 21 crossed in an X shape, but as shown in FIG. It can also be implemented with a structure in which the slide plate 14 is rotatably pivotally connected to the pin shaft 19 of the sliding plate 14, and the shear rollers 23 are pivoted at both ends and inserted into the guide grooves 8 of the cover plate support frames 6, 6. I can do it.

The sliding plate 14 is always supported at the center of the gap G.

[Effects of the Invention] As described above, the expansion joint according to the present invention has a structure in which the gap is covered by a cover plate and a sliding plate,
Since the covering agent is not formed on the outside of the gap, the width of the expansion joint that appears at the front will not be wider than the gap width.
It has the characteristics of being able to reduce the influence of expansion joints on the design of buildings, has an allowable degree of freedom that can sufficiently deal with large gaps, and has sufficient strength against wind pressure, etc., and after implementation of the present invention. The practical effects of this are extremely large.

[Brief explanation of the drawing]

Fig. 1 is a partially exploded perspective view showing one embodiment of the expansion joint according to the present invention, Fig. 2 is a rear view of the same, Fig. 3 is a sectional view taken along the line ■-■ in Fig. 2, and Fig. 4 is a positioning diagram. FIG. 5 is a rear view showing another embodiment of the member, and FIG. 5 is a longitudinal sectional view showing a conventional expansion joint. 1... Support base frame, 3... Hinge groove, 3... Hinge shaft groove. 6... Cover plate support frame, 7... Cover plate mounting rib, 8... Guide groove, 9... Hinge rib,
10... Hinge shaft, 11... Cover plate, 13
...Sliding rib, 14...Sliding plate, 15...
Locking rib, 16...Sliding notch, 17...Positioning member, 19 River pin shaft, 20.21...Connection, 23...
roller. 1... Support base frame, 3... Hinge groove, 3... Hinge shaft groove. 6... Cover plate support frame, 7... Cover plate mounting rib, 8... Guide groove, 9... Hinge rib, 10
... Hinge shaft, 11. Cover plate, 13. Sliding rib, 14. Sliding plate, 15. Locking rib. 16...Sliding notch, 17...Positioning member, 19.
...Bin shaft, 20.21...Connection, 23. Roller. Figure 3

Claims (1)

[Claims] (1) In the expansion joint installed in the strain absorption gap that appears in the wall of the building, it is fixed to the opposing surfaces of the outer wall edges of both frames that are opposed with the gap in between, and the expansion joint is installed in the longitudinal direction on the opposing surface. a pair of support base frames each having a hinge groove extending in the support base frame; and a pair of cover plates each having a cylindrical hinge shaft swingably pivoted to the hinge grooves of both support base frames and each having a guide groove in the longitudinal direction. a support frame, a positioning member whose ends are slidably connected to the guide grooves of both cover plate support frames, and which connects both cover plate support frames; and an outer edge fixed to each of the cover plate support frames. a pair of cover plates having sliding ribs extending in the gap direction and extending laterally at appropriate intervals on the back surface of the member; and sliding notches formed on both cover plates and both side edges in the width direction. a sliding plate that is slidably engaged and whose center portion is rotatably connected to the center of the positioning member, and is characterized in that it has a structure that covers the gap between the frames. Expansion joints.