JP2900069B2 - Joint cover device - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement in a joint cover device that covers joints between adjacent structures so as to follow relative displacement of the structures.

[Prior art] As this type of joint cover device, there is a simple structure in which a base is fixed to each structure. According to such a structure, structures are vertically moved by earthquake, storm, land subsidence, and the like. When a relative displacement occurs in the left-right and front-back directions, a crack is generated in the mounting base of the joint cover device,
The outer wall of the structure may be damaged. To cope with this, Japanese Utility Model Publication No. 58-38807 invented Japanese Patent Publication No. 58-38807, in which the above-mentioned disadvantages were eliminated by absorbing the relative swing between the structures.

By the way, as shown in FIG. 4, the joint is covered with a pair of cover plates a and b having their inner ends overlapped, and the connecting members c and c for fixing the base ends of the cover plates are rocked. In order to allow the cover plate to move following the relative swing between structures as much as possible 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 b is sandwiched on both inner and outer surfaces by the holding member d and one cover plate a at its inner end.

In this way, the other cover plate b is held only at the inner end thereof. For example, when one cover plate a swings, the swinging power of the other cover plate b is reduced by the other connecting plate only. And so on. For this reason, since the cover plates a and b are usually formed of a thin steel plate, each time the structure swings, as shown in FIG. A force is applied to cause bending distortion in this portion. Also, when the one cover plate a is strongly pressed in a state where the structure does not swing, the cover plate a slightly rotates around the connecting body c, and the other cover plate b is curved. Similar plastic deformation occurs.

Therefore, as disclosed in Japanese Utility Model Application Laid-Open Nos. 60-141307 and 62-126403, a pair of fixed bodies fixed to the wall surfaces of adjacent structures, respectively, A connecting body rotatably fitted, a sliding arm fixed to the one connecting body, and a sheath fitted to the other connecting body and having a sliding arm slidably inserted into an end portion; There has been proposed a joint cover device including a joint holding rod and a joint cover including two cover plates whose ends are fixed to the connecting body and whose free ends overlap each other.

[Problems to be Solved by the Invention] However, in such a configuration, since the joint cover is formed by the two cover plates, the following performance is limited, and the structures are largely separated in the left-right direction. In some cases, it was not possible to cope with this case, and in some cases, the overlapping of the cover plates was released, or the holding rod was detached from the sliding arm.

In addition, if the gap between the joints is large, if such a configuration is used, the distance from the position of the connecting body serving as the fulcrum of the cover to the edge of the cover becomes longer, and the adhesion of the outer cover decreases. . Therefore, there is a limit in application to a wide joint.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a joint cover device capable of firmly supporting the back surface of the joint cover and greatly increasing the allowable lateral movement.

[Means for Solving the Problems] The present invention provides a pair of fixed bodies fixed to the wall surfaces of adjacent structures, respectively, and a connecting body fitted to both the fixed bodies so as to be rotatable in the left-right direction. A first sliding arm fixed to the one connecting body, and a second sliding arm loosely slidably fitted in an engaging groove formed in the other connecting body along the joint direction. A holding rod disposed between the two sliding arms, wherein one of the two sliding arms and the holding rod has a sheath shape, and the other has a plate shape to be inserted into an end of the sheath. A sliding arm slidably connected to the left and right sides of the rod, respectively, and a stretchable holding member disposed so as to extend between the pair of fixed bodies; an intermediate cover plate having a back surface fixed to the holding rod; A joint cover having 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. Composed of a joint cover device.

[Operation] When the structure relatively moves in the left-right direction, the first and second sliding arms relatively move with respect to the holding rod. Then, the left and right 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, and move in the left and right direction while maintaining the superposed state.

When the structure is relatively moved in the front-rear direction, the connecting body rotates with respect to the fixed body, and each cover plate tilts while maintaining its overlapping state.

Further, when the adjacent structure relatively moves in the vertical direction, the second sliding arm slides with respect to the engaging groove of the connecting body, and absorbs the relative movement.

Thus, when the adjacent structures relatively move left and right, back and forth, and up and down, the joint cover covers the joints between the structures without any trouble while absorbing each movement, and the back surface thereof is stretched by the elastic holding member. Is supported to prevent bending.

An embodiment of the present invention will be described with reference to the accompanying drawings.

With reference to FIGS. 1 to 3, 1a and 1b are long vertically fixed bodies fixed to both side walls z and z of joints y of adjacent structures x and x, and the bottom surface thereof has A through hole 2 is formed.
A rubber sheet 3 made of butyl rubber, propylene rubber, or the like is provided between the fixed bodies 1a, 1b and both side walls z, z in order to prevent rainwater or the like from entering the back side of the water stop plate 6 described later. You may make it interpose.

The fixed bodies 1a and 1b are formed with C-shaped grooves 4 whose inner ends are open. The fitting grooves 5,5 are provided inside the C-shaped grooves 4.
Are provided in the fitting grooves 5, 5 at both end edges 7, 7 of the elastic water blocking plate 6.
Is involved. The water blocking plate 6 covers the joint y to prevent rainwater or the like from entering the joint y.

The above-mentioned several fixed bodies 1a and 1b are respectively arranged along both sides of the joint part y continuously in the vertical direction, and the fixing screws 8 are inserted into the solidified plugs embedded in both side walls z by using the through holes 2a. Then, it is fixed to both side walls z through the rubber sheet 3 by being inserted and screwed.

10a and 10b are vertically long L-shaped connectors disposed on both sides of the joint portion y. At the lower end thereof, a C-shaped piece 11 slidably inserted into the C-shaped groove 4 is provided. It is suddenly formed. The C-shaped piece 11 is inserted into the C-shaped groove 4 as shown in FIG. 2, and the connecting members 10a and 10b can be rotated by the reciprocating action. Engagement grooves 12a, 12b are formed at the upper ends of the connecting bodies 10a, 10b.

Further, a holder 3 described below is provided inside the connecting bodies 10a and 10b.
L-shaped engagement grooves 14, 14 for supporting the 0 end are formed inward along the longitudinal direction.

Further, mounting wings 16, 16 for fixing cover plates 43, 43 described later are formed outside the connecting bodies 10a, 10b.

In the right side of the drawing, a first sliding arm 20a having a hook-shaped engaging end 21a having a U-shaped cross section at the base end is provided with a hook-shaped engaging end 21a. And is tightly immovable by being tightly fitted, and its tip is disposed between the coupling bodies 10a and 10b.

In addition, a plate-shaped second sliding arm 20b having a hook-shaped engaging end 21b having a U-shaped cross section at the base end engages with the connecting body 10b on the left side in the drawing. The sliding arm 20b is loosely fitted in the groove 12b, thereby connecting the sliding arm 20b to the connecting body 10b so that the sliding arm 20b can slide in the up and down direction, and the distal end thereof is arranged between the connecting bodies 10a and 10b. ing.

The intermediate cover plate 40 is provided with a sheath-like holding rod 23 having an inner surface formed with a longitudinal opening 24, and the ends of the sliding arms 20a and 20b are inserted from the left and right ends thereof. Hold rod 2
V-shaped cover fixing pieces 25, 25 are fixed to both ends of the outer surface of 3.

Thus, the sliding arms 20a, 20b are connected to the holding rod 23 so as to be movable in the left-right direction, and the sliding arms 20a, 20b,
23 constitutes an elastic holding body 26 which is extended right and left with respect to the joint part y.

The plurality of elastic holders 26 are provided between the fixed bodies 1a and 1b at required intervals.

In the elastic holder 26, the sliding arms 20a and 20b may be formed in a sheath shape, and the holding rod 23 may be formed in a plate shape in which the sliding arms 20a and 20b are fitted from the ends.

Inside the holding rod 23, the head of a connecting rod 28 is supported in the opening 24 and protrudes inward from the center hole 27. A long holder 30 is rotatably attached to the connecting rod 28 by inserting its central portion, and is formed between a nut 29 screwed to a lower portion of the connecting rod 28 and the holder 30. The holder 30 is attached to urge the holder 30 forward in the mounted state.

That is, locking projections 31, 31 made of rubber or the like are provided on both ends of the holder 30 so as to protrude forward, and are engaged with the engagement grooves 14, 14 of the coupling bodies 10a, 10b from the inside, so that the projections 34 are formed. By the urging action, the ends of the locking projections 31, 31 are pressed into the engagement grooves 14, 14. And by this the holder 30 is connected
10a, 10b, and the connecting rods 2 are guided by the engaging grooves 14, 14 as the adjacent structures x, x move in the left-right direction.
It is tilted about 8, and its width in the left-right direction is changed following the movement.

For this reason, even if the structures x, x move in the left-right direction, the connecting rod 28 inserted through the center of the holder 30 is always arranged at the center position of the structures x, x. Therefore, the holding rod 23
It will always be extended to the center of the structure x, x.

Then, the urging force of the spring 34 acts on the holding rod 23 via the holder 30, the elastic holding body 26 is urged inward without rattling, and the hook-shaped engaging end 21 of the sliding arm 20b is moved. Is the engagement groove 12a
Is held. The length of the holder 30 is set in advance so as to be equal to or longer than the maximum separation width of the connecting bodies 10a and 10b.

An intermediate cover plate 40 is fixed to the holding rod 23. Both ends 41, 41 of this intermediate cover plate 40 are the cover fixing pieces 25, 25.
The holding rod 23 is fixed to the back of the intermediate cover plate 40 by overlapping the cover fixing pieces 25, 25 and the ends 41, 41 and screwing them together at the same angle. Is done.

Further, an end cover plate 4 is provided on both sides of the intermediate cover plate 40.
3, 43 are arranged with their inner edges superimposed on the front part of the intermediate cover plate 40 and their outer edges fixed to the connectors 10a, 10b. That is, the inner ends of the end cover plates 43, 43 are bent inward at an obtuse angle of substantially the same angle as the end portions 41, 41 to form a overlap end 44, and the overlap end serving as a free end The end 44 is in contact with the front surface of the intermediate cover plate 40. The side ends are bent inward at right angles to form bent ends 45 at the inner ends, and the bent ends 45 are fixed to the wing pieces 16, 16 by screws, so that the end cover plates 43, 43 are provided. Is fixed to the connecting bodies 10a and 10b.

Thus, a joint cover 47 that covers the joint y with the intermediate cover plate 40 and the end cover plates 43, 43 is formed. At this time, the intermediate cover plate 40 is always supported at the center of the structure via the holding rod 23 by the positioning operation of the central portion of the holder 30.

In addition, flexible sealing materials 51, 51 are embedded between the outer surfaces of the mounting wing pieces 16, 16 of the connecting bodies 10a, 10b and the mortar 50.

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

When structures x and x are displaced relative to each other due to an earthquake or storm, etc., or when there is a construction error in structures x and x, the relative left and right movement between linked bodies 10a and 10b retains elasticity. 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 plates 43, 43 on both sides are absorbed by relatively moving in the left-right direction. In this case, the maximum separation distance is allowed up to a position where the overlapping end 44 of the end cover plates 43, 43 comes into contact with the ends 41, 41 of the intermediate cover plate 40. Therefore, the left and right intermediate cover plates 40,
The lateral movement of twice the overlapping width with the end cover plates 43, 43 is allowed, and the left and right allowable width is greatly improved compared to the conventional configuration in which two cover plates are overlapped. It will be.

Also, following the movement of the connecting bodies 10a and 10b, the holder 3
0 is tilted by the guiding action between the locking projections 31, 31 and the engaging grooves 14, 14.

Further, the relative vertical movement of the structures x, x is allowed because the hook-shaped engagement end 21b of the second sliding arm 20b is vertically movably locked to the engagement groove 12b. obtain.

Furthermore, as shown in FIG. 2, the connecting bodies 10a and 10b are rotatably connected to the fixed bodies 1a and 1b by inserting the C-shaped pieces 11 into the C-shaped grooves 4. It is possible to incline while securing a sufficient inclination angle with respect to the fixed bodies 1a and 1b. At this time, the flexible sealing material 51 bends or expands, and can be tilted.

As shown in FIG. 2, when the structures x, x move forward, backward, left, right, and up and down with respect to each other, the intermediate cover plate 4
The joint cover 47 including the end cover plates 43 and 43 can be integrally inclined, so that the joint y can be covered without any trouble against an earthquake, a storm or the like. Further, the joint cover 47 can be attached without any trouble even in the case of the construction error of the structures x, x.

In the above-described embodiment, the connecting bodies 10a and 10b are:
The C-shaped piece 11 is inserted into the C-shaped groove 4 and rotatably connected to the fixed bodies 1a and 1b, but is formed by fitting a substantially circular concave and convex portion, a hinge type, Alternatively, various types of rotary connecting mechanisms such as those via an L-shaped linking arm (see Japanese Utility Model Application Laid-Open No. 60-14130) can be applied.

[Effect of the Invention] As described above, the joint cover device of the present invention has the joint cover 47 formed by the three intermediate cover plates 40 and the end cover plates 43, 43 superimposed on each other, and the back surface thereof is slid. Moving arm 20a,
20b, which is held by an elastic holder 26 constituted by a holding rod 23, and the structures x, x are relatively moved in the left-right direction as compared with the conventional structure composed of two cover plates. In this case, it is possible to follow, and there is an excellent effect that it can cope well with a joint having a large y width.

On the other hand, if the cover plate spreads in the width direction, the joint covers will not move due to the relative movement of the
Large load acts on 47, but elastic backing on the back
Since the rear surface 26 is arranged to hold the rear surface, the joint cover 47 is prevented from being deformed, and the width of the cover can be increased. Further, each end cover plate 43, 43 Can be made relatively short, so that there is an excellent effect that the adhesion to the intermediate cover plate 40 is not impaired and the joint is optimal for a wide joint.

[Brief description of the drawings]

The accompanying drawings show an embodiment of the present invention, and FIG.
FIG. 2 is a cross-sectional plan view showing a state where the structures x and x have relatively moved.
FIG. 3 is an exploded perspective view, and FIG. 4 is a cross-sectional plan view showing a defect of the conventional device. 1a, 1b ... fixed body 10a, 10b ... connecting body 11 ... C-shaped piece 12a, 12b ... engagement groove 14, 14 ... engagement groove 20a, 20b ... sliding arm 21, 21 ... hook Engagement end 23… Holding rod 24… Opening 26… Elastic holding body 28… Connecting rod 30… Holder 31, 31 Locking projection 34 Trigger 40… Intermediate cover plate 43, 43 End cover plate 47 …… Joint cover

Claims (1)

(57) [Claims] 1. A pair of fixed bodies respectively fixed to the wall surfaces of adjacent structures, a connecting body fitted to both of the fixing bodies so as to be rotatable in the left-right direction, and fixed to the one connecting body. A first sliding arm, a second sliding arm that is slidably fitted in an engagement groove formed in the other connecting body along the joint direction, and between the two sliding arms. The holding arm is provided with one of the sliding arms and the holding rod in a sheath shape, and the other is in a plate shape to be inserted into the end of the sheath, and the sliding arms are slid to the left and right of the holding rod. An elastic holding member movably connected to each other and disposed between the pair of fixed members, an intermediate cover plate having a back surface fixed to the holding rod, and an end fixed to the connecting member. And a joint cover having left and right end cover plates whose inner ends are overlapped on the intermediate cover plate.