JPH0434152A - Joint cover device - Google Patents

Abstract

PURPOSE:To highly improve movement torelance by fitting a connecting body to a fixed body on a wall surface, fixing first and second sliding arms and a holding beam to the connecting body, and providing the holding beam with a middle plate for fixing the back surface and lateral end part cover plates. CONSTITUTION:A plurality of fixed bodies 1a, 1b are fixed to both side walls Z of a joint part Y, and connecting bodies 10a, 10b are fitted to the fixed bodies la, 1b in such a manner as to be laterally rotatable. A plate first sliding arm 20a having a U-shaped hook engaging end 21a is closely fitted to the right connecting body 10a, and a second sliding arm 20b having a hook engaging end 21b is fitted to the left connecting body 10b. A sheath holding beam 23 is disposed between the sliding arms 20a, 20b to form an expansion holding body 26, and a middle cover plate 40 is fixed to the holding beam 23, and on both the sides, end part cover plates 43 are fixed to the connecting bodies 10a, 10b. The lateral movement torelance thus can be highly extended.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an improvement in a joint cover device that covers joints between adjacent structures so as to be able to follow relative displacements of the structures.

[Prior Art] Some joint cover devices of this type have a simple structure in which the base is fixed to each structure, but with such a structure, the structures may be moved up or down due to earthquakes, rainstorms, poor ground conditions, etc. , when relative displacement occurs in the left-right and front-back directions,
Cracks may occur in the mounting base of the joint cover device, and the outer wall of the structure may be damaged. Therefore, as a solution to this problem, a device was invented in Japanese Utility Model Publication No. 58-38807 which absorbs the relative vibration between the structures and eliminates the drawbacks described above.

By the way, as shown in FIG. 4, this configuration covers the joint with a pair of cover plates a and b whose inner ends are overlapped, and swings connecting bodies C and C that fix the base ends of the cover plates, respectively. In order to enable the cover plate to move in accordance with relative rocking between the structures, and to support the cover plates a and b, the holding member d is cantilevered along the inner surface of one cover plate a. , and the other cover plate is held at its inner end by the holding member d and one cover plate a on both the inner and outer surfaces.

In this way, the other cover plate is held only at its inner end, so that, for example, when one cover plate a swings, the swinging force is transferred only by the other cover plate to the other connecting body. etc. will be transmitted. For this reason, since the cover plates a and b are usually made of thin steel plates, as shown in FIG. Force is applied, causing bending strain in this part. In addition, when one of the cover plates a is strongly pressed while the structure is not rocking, the cover plate a slightly rotates around the connecting body C, causing the other cover plate to curve. similar plastic deformation occurs.

Therefore, Utility Model Application No. 60-141307, Utility Model Application No. 62-12
As disclosed in No. 6403, a pair of fixed bodies respectively fixed to the wall surfaces of adjacent structures, a connecting body fitted to both fixed bodies so as to be rotatable in the left and right direction, and one of the above-mentioned fixed bodies. a sliding arm fixed to the connecting body; a sheath-shaped holding rod fitted to the other connecting body and into which the sliding arm is slidably inserted; and an end fixed to the connecting body; A joint cover device has been proposed which includes a joint cover made of two cover plates whose free ends are overlapped.

[Problems to be Solved by the Invention] However, in such a structure, since the joint cover is formed by two cover plates, there is a limit to its follow-up performance, and the structure may be separated greatly in the left and right direction. In some cases, the cover plates may have to be removed from each other or the holding rod may come off the sliding arm.

Furthermore, if such a configuration is used when the gap between the joints is wide, the distance from the position of the connecting body that serves as the fulcrum of the cover to the edge of the cover becomes long, and the adhesion of the outer cover decreases. . For this reason, there was a limit to its application to wide joint areas.

An object of the present invention is to provide a joint cover device that can firmly support the back surface of the joint cover and greatly expand the allowable amount of movement in the left and right direction.

[Means for Solving the Problems] The present invention comprises: a pair of fixed bodies respectively fixed to the wall surfaces of adjacent structures; and a connecting body fitted to both fixed bodies so as to be rotatable in the left-right direction. and a first sliding arm that is fixed to the one connecting body, and a second sliding arm that is slidably fitted loosely in the engagement groove formed in the other connecting body along the joint direction. , and a holding rod disposed between the two sliding arms, one of the sliding arms and the holding rod is shaped like a sheath, and the other one is shaped like a plate to be inserted into the end of the sheath. an elastic holding body that is slidably connected to sliding arms on the left and right sides of the rod and is disposed across the pair of fixed bodies; an intermediate cover plate whose back surface is fixed to the holding rod; This joint cover device is constituted by a joint cover consisting of left and right end cover plates whose ends are fixed to the connecting body and whose inner ends are superimposed on the intermediate cover plate.

[Operation] When the structure moves relatively in the left-right direction, the first and second sliding arms move relative to the holding rod. Then, the end cover plates on the left and right sides of the intermediate cover plate fixed to the holding rod follow the relative widthwise movement of the adjacent structures,
Move left and right while maintaining the overlapping state.

Further, when the structure moves relative to each other in the front-back direction, the connecting body rotates with respect to the fixed body, and each cover plate tilts while maintaining its overlapping state.

Furthermore, when adjacent structures move relative to each other in the vertical direction, the second sliding arm slides against the engagement groove of the connecting body and absorbs the relative movement.

Therefore, when adjacent structures move relative to each other from side to side, back and forth, and up and down, the joint cover absorbs each movement and covers the joint between the structures without any hindrance. is supported to prevent bending.

[Example] An embodiment of the invention will be described with reference to the accompanying drawings.

1 to 3, la and lb are adjacent structures x,
It is a vertically elongated fixed body fixed to both side walls z, z of the joint y of x, and has a through hole 2 formed in its bottom surface. This fixed body 1a.

A rubber sheet 3 made of butyl rubber, propylene rubber, etc. is interposed between lb and both side walls z and z to prevent rainwater from entering the back side of the water outlet plate 6, which will be described later. Also good.

A C-shaped groove 4 whose inner end is open is formed in the fixed bodies 1a and lb. Also, a fitting groove 5 is provided inside this C-shaped groove 4.
, 5 are provided, and both end edges 7, 7 of the elastic water stop plate 6 are engaged in the fitting grooves 5, 5. The water stop plate 6 covers the joint y and prevents rainwater etc. from entering the joint y.

The several fixing bodies 1a and lb described above are arranged continuously in the vertical direction along both sides of the joint y, and the fixing screws 8 are inserted into the fixing plugs embedded in the both side walls Z through the through holes 2. By inserting and screwing the rubber sheet 3 into both side walls Z.
It is tightly fixed to.

10a and lob are vertically long L-shaped connecting bodies disposed on both sides of the joint y, and a C upper piece 1 is slidably inserted into the C-shaped groove 4 at the lower end thereof. is prominently formed. The C upper piece 11 is inserted into the C-shaped groove 4 as shown in FIG.
This allows rotation of b. and the connecting body 10a,
Engagement grooves 12a and 12b are formed at the upper end of 10b.

Also, on the inside of the connecting body 10a and Job, an L-shaped engagement groove 14.1 for supporting the end of the holder 30, which will be described later.
4 is formed inwardly along the long plane direction.

Further, on the outside of the connecting bodies 10a and 1Ob, wing pieces 16 and 1 are attached to fix cover plates 43 and 43, which will be described later.
6 is formed.

In the connecting body 10a on the right side of the figure, a plate-shaped first sliding arm 20a, which has a hook-shaped engagement end 21a with an inverted U-shaped cross section at its base end, inserts the hook-shaped engagement end 21 into the engagement groove 12a. It is solidified immovably by being hammered in and tightly fitted, and its tip is attached to the connecting body 10.
It is placed between a and lob.

In addition, the connecting body 10b on the left side of the figure has a plate-shaped second sliding arm 20b having a hook-shaped engagement end 21b with an inverted U-shaped cross section at the base end.
The hook-shaped engaging end 21 is loosely fitted into the engaging groove 12a, and thereby the sliding arm 20b is connected to the connecting body 10b so as to be able to slide in the vertical direction. The tip portion is arranged between the connecting bodies 10a10b.

A sheath-like holding rod 23 having an elongated opening 24 formed on the inner surface is disposed on the sliding arms 20a, 20b, and the end edges of the sliding arms 20a, 20b are inserted from the left and right ends thereof. . Further, V-shaped cover fixing pieces 25, 25 are fixed to both ends of the outer surface of the holding rod 23.

Thus, the sliding arms 20a and 20b are connected to each other so as to be movable in the left and right direction with respect to the holding rod 23, and the sliding arms 20a,
20b and the holding rod 23 constitute a stretchable holding body 26 that extends from side to side with respect to the joint portion y.

A plurality of elastic holding bodies 26 are arranged at required intervals between the fixed bodies 1a and lb.

The elastic holder 26 includes sliding arms 20a and 20b.
may be in the form of a sheath, and the holding rod 23 may be in the form of a plate into which the sliding arms 20a, 20b are fitted from the ends.

Inside the holding rod 23, the head of the connecting rod 28 has an opening 24.
It is supported within the center hole 27 and projects inwardly from the center hole 27.

An elongated holder 30 is rotatably attached to the connecting rod 28 by inserting its center part, and a nut 29 screwed into the lower part of the connecting rod 28 and the holder 30 are provided with a spring. 34 is attached so that the holder 30 is biased forward in the attached state.

That is, locking protrusions 31 and 31 made of rubber or the like are provided at both ends of the holder 30 and protrude forward, so that the connecting body 10
a and lOb from the inside, and by the biasing action of the spring 34, the end of the locking protrusion 31°31 is pressed into the engaging groove 14.14. There is. Thereby, the holder 30 is passed between the connecting bodies 10a and 10b, and as the adjacent structures x and The directional width is changed to follow the movement.

Therefore, even if the structures x move in the left-right direction, the connecting rod 28 inserted through the center of the holder 30 will always
, x. Therefore, the retaining rod 23 is always the structure X.

It will be passed to the center of the X.

Then, the urging force of the spring 34 acts on the holding rod 23 via this holder 30, and the elastic holding body 26 is urged inward without wobbling, and the hook-shaped engaging end 21 of the sliding arm 20b
is fitted and held in the engagement groove 12a. The length of this holder 30 is set in advance to match the maximum separation width between the connecting bodies 10a and 1Ob.

An intermediate cover plate 40 is fixed to the holding rod 23. Both ends 41.41 of the intermediate cover plate 40 are bent obtusely forward at the same angle as the cover fixing pieces 25.25, and the cover fixing pieces 25, 25 and the ends 41, 41 are overlapped. By fixing with screws, the intermediate cover plate 4
A holding rod 23 is fixed to the back of 0.

Furthermore, end covers i4 are provided on both sides of the intermediate cover plate 40.
3.43 is disposed with its edge overlapped with the front part of the intermediate cover plate 40 and its edge fixed to the connecting bodies 10a, 10b. That is, the inner ends of the end cover plates 43, 43 are bent inward at an obtuse angle that is approximately the same angle as the ends 41, 41 to form overlapping ends 44, and the overlapping ends become free ends. The end 44 is in contact with the front surface of the intermediate cover plate 40. Further, a bent end 45 is formed at the inner end of the side end at a right angle inward, and the bent end 45 is attached to the wing piece 16,
16, the outer ends of the end cover plates 43, 43 are fixed to the connectors 10a, 10b.

Thus, the intermediate cover plate 40. End cover plate 43.4
3 constitutes a joint cover 47 that covers the joint portion y. still,
At this time, the intermediate cover plate 40 is always supported at the center of the structure via the holding rod 23 due to the positioning action of the center portion of the holder 30.

In addition, when attaching the connecting body 10a and the lob, a flexible sealing material 51.51 is used between the outer surface of the wing piece 1616 and the mortar 50.
is embedded.

The operation of the joint cover device having the above configuration will be explained.

When structures x and x are displaced relative to each other due to an earthquake or a rainstorm, or when construction errors occur in structures x and The sliding arms 20a, 20b of the body 26 slide on both sides of the holding rod 23, and the intermediate cover plate 40 and the end cover i plates 4343 on both sides move relatively in the left and right direction, thereby absorbing the force. In this case, the maximum distance allowed is up to a position where the overlapping ends 44 of the end cover plates 43, 43 abut against the ends 41, 41 of the intermediate cover plate 40. Therefore, the left and right intermediate cover plates 40 and the end cover plates 43
．． 43 is allowed to move in the left and right directions twice as much as the overlapping width, and the allowable left and right separation width is greatly improved compared to the conventional structure in which the cover plates are configured in two pieces.

Further, following the movement of the connecting bodies 10a and lOb, the holder 30 engages its locking projections 31.31 and engagement grooves 14.14.
It will tilt due to the guiding action.

Further, the relative vertical movement of the structures x, x is allowed because the hook-shaped engaging end 21 of the second sliding arm 20b is locked to the engaging groove 12a so as to be movable in the vertical direction. obtain.

Furthermore, as shown in FIG. 2, the connecting bodies 10a, 10b are rotatably connected to the fixed bodies 1a, lb by inserting their C upper pieces 11 into the C-shaped grooves 4. It can be tilted with a sufficient tilting angle with respect to the fixed bodies 1a and lb. At this time, the flexible sealing material 51 is bent or expanded, and can be tilted.

Therefore, as shown in FIG. 2, when the structures x,
．． The joint cover 47 consisting of the end cover plates 43 and 43 can be tilted integrally, and therefore can cover the joint portion y without any trouble against earthquakes, rainstorms, etc. Also, structure X.

Even if there is a construction error of X, the joint cover 47 can be installed without any problem.

In the above embodiment, the connecting body 10a10b is rotatably connected to the fixed bodies 1a and lb by inserting the C upper piece 11 into the C-shaped groove 4, but the connecting body 10a10b has a substantially circular shape. A rotational connection mechanism with a number of configurations can be applied, such as one using a fitting between a concave part and a convex part, a hinge type one, or one using an L-shaped linking arm (see Utility Model Application No. 60-14130). .

[Effects of the Invention] As described above, the joint cover device of the present invention includes the joint cover 47 formed by three intermediate cover plates 40. End cover plate 43.4
3 are stacked one on top of the other, and the back side is held by an elastic holder 26 made up of sliding arms 20a, 20b and a holding rod 23, compared to the conventional structure of two pieces. Structure X compared to the one made of cover board,
It has excellent effects such as being able to follow a large relative movement of X in the left and right direction and also being able to cope well with joints 7 having a large width.

On the other hand, if the cover plate expands in the width direction, the joint cover 4
A large load is applied to the joint cover 47, but since the elastic holder 26 is arranged on the back side of the joint cover 47 to hold the back side, deformation of the joint cover 47 is prevented and the cover can be made wider. Furthermore, since the width of each end cover plate 43, 43 can be made relatively short, the adhesion with the intermediate cover plate 40 is not impaired, and there are excellent effects such as being optimal for wide joints. .

[Brief explanation of the drawing]

The accompanying drawings show embodiments of the present invention, and FIG. 1 is a cross-sectional plan view;
FIG. 2 is a cross-sectional plan view showing a state in which the structures x and x have moved relative to each other, FIG. 3 is an exploded perspective view, and FIG. 4 is a cross-sectional plan view showing the drawbacks of the conventional device. 4 shots 0--Intermediate cover plate 3.43 End cover 7...Eye cover plates la, lb...-Fixed body 10a, 1Ob Series assembly 11...C Upper piece 12a, 12b large groove 14.14...Engagement grooves 20a, 20b-=Sliding arm 21.21...Hook-shaped engagement end 23...Holding rod 24-...Opening 26...Stretchable holding body 28-...・Connection rod 30...Holder 31.31 locking protrusion

Claims (1)

[Scope of Claims] A pair of fixed bodies each fixed to a wall surface of an adjacent structure; a connecting body fitted to each of the fixed bodies so as to be rotatable in the left-right direction; and one of the connecting bodies A first sliding arm that is fixed, a second sliding arm that is loosely fitted into an engagement groove formed in the other connecting body so as to be slidable along the joint direction, and between the two sliding arms. One of the sliding arms and the holding rod is in the form of a sheath, and the other is in the form of a plate that is inserted into the end of the sheath, and the sliding arms are placed on the left and right sides of the holding rod. an elastic holding body slidably connected to each other and disposed across the pair of fixed bodies; an intermediate cover plate whose back surface is fixed to the holding rod; and an end portion fixed to the connecting body. and a joint cover consisting of left and right end cover plates whose inner ends are overlapped on the intermediate cover plate.