JPH09184204A - Joint device for floor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To simplify a structure by securing the ends of an expansion link to separate buildings, providing a joint cover in such a way that it covers a recess at the ends of the buildings, and attaching rollers to fixing fittings in such a way that they make contact with the side wall of the cover. SOLUTION: If a joint part 2 is increased in width as the result of the shaking of right and left of buildings 3 in an earthquake, etc., the buildings 3 move in the horizontally outward direction. A joint cover 12 is located at the center of the joint part 2 by the action of an expansion link 7 and that of an energizing mechanism 18. If the joint part 2 is decreased in width, the buildings 3 move in the horizontally inward direction, and a roller 6 of a pair of fixing fittings 4 is moved downward along the side wall 12a of the slope of the joint cover 12, pushing up the cover 12 to absorb the movements of the buildings 3. Once the buildings 3 have been returned to their original positions, the joint cover 12 is forced back into a recess 13 between the fixing fittings 3 by the energizing spring 21 of the energizing mechanism 18. If the buildings 3 further move in the vertical direction, their movements are absorbed by the rotatable hinge members of the expansion link 7.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a floor joint device for covering joints of floor portions of adjacent left and right buildings.

[0002]

2. Description of the Related Art A conventional floor joint device has channel-shaped left and right fixing members fixed to the floors on the joint side of the left and right buildings, and the left and right fixing members support parts near both ends. It is composed of a joint cover that covers the joint portion and cover plates that are attached to the left and right fixing fittings so as to cover the upper portions of both ends of the joint cover.

[0003]

Since the conventional floor joint cover device is covered with joint covers in which the parts near the both ends are supported by the left and right fixing brackets, when the left and right buildings are shaken by an earthquake, Since the width of one of the fixing brackets is the maximum amount of movement, the amount of movement is small, and if the amount of movement is set to a large amount, the width dimension of the floor joint cover device becomes large and large.

The present invention has been made in view of the above-mentioned conventional drawbacks,
If the left and right buildings sway due to an earthquake, etc., even if they move by a dimension close to the width of the joint, they will not be damaged, they will smoothly follow the swaying movement, and if the sway stops, it will return to its original state. An object of the present invention is to provide a floor joint device which can be automatically returned, has a simple structure, can be easily installed, and can be manufactured at low cost.

The above and other objects and novel features of the present invention will become more fully apparent when the following description is read in conjunction with the accompanying drawings. However, the drawings are for explanation only, and do not limit the technical scope of the present invention.

[0006]

In order to achieve the above-mentioned object, the present invention is formed so as to open at the joint portion at a portion near the joint portion of the floor portions of the left and right buildings which are separated by the joint portion. Pair of recesses, a pair of fixing fittings respectively fixed to the pair of recesses, and at least two pantographs whose both ends are fixed to the pair of fixing fittings or the skeleton of the floor of the left and right buildings. -Shaped expansion and contraction link, and a joint cover in which both side walls having a flange covering the left and right floor surfaces on both sides of the upper portion so as to cover the pair of recesses are formed on the inclined surface, and so as to come into contact with both side walls of the joint cover. A plurality of rollers attached to the pair of fixing brackets at predetermined intervals, respectively, and an urging mechanism attached to the expansion link for urging the joint cover so that the joint cover always contacts the rollers. Constitute the apparatus.

[0007]

BEST MODE FOR CARRYING OUT THE INVENTION The present invention will be described in detail below with reference to the embodiments shown in the drawings.

In the first embodiment of the present invention shown in FIG. 1 to FIG. 8, reference numerals 1 and 1 designate a frame of a portion of the floor portions of the left and right buildings 3 and 3 which are separated by a joint portion 2 near the joint portion. 3a,
3a is a pair of concave portions formed to open to the joint portion 2.

Reference numerals 4 and 4 denote side walls 1 of the pair of recesses 1 and 1.
a is a pair of metal fittings whose upper surfaces are fixed in the recesses 1 and 1 so as to be in contact with the recesses 1 and 1 and whose upper surfaces are inclined surfaces 4a. As shown in FIG. The rollers 6 are fixed in the recesses 1 and 1 by a fixing screw 5, and a plurality of rollers 6 are attached to the inclined surface 4a of the upper surface at predetermined intervals so as to project to the upper surface.

Reference numerals 7 and 7 denote left and right skeletons 3a of the joint portion 2,
3a or at least 2 in the pair of fixing brackets 4 and 4
As shown in FIG. 4, this expandable link 7 is a pantograph-shaped expandable link that has a pivotal support portion 8 at the center, and has both ends attached to it. The link main body 9 and the hinge members 11, 11 to which the pivot pins 10 and 10 at both ends of the expandable link main body 9 are attached are vertically rotatable.

As shown in FIG. 5, reference numeral 12 is a series arrangement in which both side walls 12a, 12a covering the recess 13 between the pair of fixing fittings 4, 4 are formed in an inclined surface supported by the rollers 6, 6. With the same number of joint covers as the elastic links 7
The joint cover 12 is a dish-shaped joint cover main body 16 having flanges 15 and 15 located on the floors 3b and 3b on which the left and right tiles and the decorative plates 14 and 14 are attached to the left and right parts, and the joint. It is composed of a tile and a decorative plate 14 fixed to the upper surface of the cover body 16 via mortar or concrete 17.

Reference numeral 18 denotes an urging mechanism for urging the joint cover 12 so that the joint cover 12 is always in contact with the rollers 6, 6, and the urging mechanism 18 is a central portion of the expansion link 7 as shown in FIG. A pivot pin 19 having an upper end rotatably attached to a substantially central portion of the joint cover 12 which is slidably supported by the supporting portion 8 and the joint cover 12 are always in contact with the rollers 6, 6. An urging spring 2 interposed between the expansion link 7 for urging the pivot support pin 19 and a locking piece 20 attached to the lower end of the pivot support pin 19.
1 and a joint cover 12 attached to the pivot pin 19
It is composed of a stopper piece 22 for stopping at a predetermined position.

A support bar is pivotally supported by the pivotally supporting portions 8 and 8 in the central portion of the expansion and contraction links 7 and, and a pivotal support pin 19 attached to the joint cover 12 is attached to the support bar to expand and contract. A plurality of joint covers 12 can be arranged in series between the links 7, 7.

In the floor joint device 23 having the above structure, when the left and right buildings 3 and 3 are shaken by an earthquake or the like and the width of the joint portion 2 is increased, the left and right buildings 3 and 3 as shown in FIG. Moves to the left and right, but the joint cover 12
Is located at the center of the joint portion 2 by the expansion link 7 and the biasing mechanism 18.

When the width dimension of the joint portion 2 becomes small, the left and right buildings 3, 3 move inward in the left and right directions as shown in FIG. 6 moves along both side walls 12a, 12a of the inclined surface, pushes up the joint cover 12 upward, absorbs the movement, and when it returns to the original state, the urging mechanism 18
The urging spring 21 automatically returns to the recess 13 between the pair of fixing fittings 4 and 4, as shown in FIG.

Even if the left and right buildings 3 and 3 move in the vertical direction, the hinge members 11 of the expandable link 7 move in the vertical direction, and the joint cover 12 is also biased by the biasing mechanism 18 to fix the pair of fixing fittings 4. Since it is biased in four directions, its movement can be absorbed.

[0017]

Next, different embodiments of the present invention shown in FIGS. 9 to 19 will be described. In addition,
In the description of the different embodiments of the present invention, the same components as those of the first embodiment of the present invention are denoted by the same reference numerals, and duplicate description will be omitted.

The second embodiment of the present invention shown in FIGS. 9 to 11 is mainly different from the first embodiment of the present invention in that the recess 13 between the pair of fixing fittings 4, 4 is Since it is covered with the individual joint cover 12A, the floor joint device 23A using the joint cover 12A thus formed is
The same functions and effects as those of the first embodiment of the present invention can be obtained.

The third embodiment of the present invention shown in FIGS. 12 to 14 is mainly different from the first embodiment of the present invention in that the upper portion of the pair of fixing fittings 4A and 4A is in an expanded shape. The inclined surfaces 4a, 4a of the
A and 4A, the plurality of rollers 6, 6 are attached to both side walls 12a, 12a of the joint cover 12B so as to abut the inclined surfaces 4a, 4a of the joint cover 12B. Even with the floor joint device 23B configured by using the joint cover 12B, the same operational effect as that of the first embodiment of the present invention can be obtained.

The fourth embodiment of the present invention shown in FIGS. 15 to 17 is mainly different from the first embodiment of the present invention in that the side walls 1a, 1a of the pair of recesses 1, 1 are located closer to each other. Even with the floor joint device 23C configured in this manner in that the rollers 6A are attached to the parts at predetermined intervals, the same operational effect as that of the first embodiment of the present invention can be obtained.

The fifth embodiment of the present invention shown in FIGS. 18 and 19 is mainly different from the second embodiment of the present invention in that the joint cover 12A is provided with a pair of fixing fittings 4, 4.
Even with the floor joint device 23D configured in this manner, the same effect as that of the second embodiment of the present invention can be obtained in that it is only supported by the above.

[0022]

As apparent from the above description, the following effects can be obtained in the present invention.

(1) A pair of recesses formed so as to open to the joints at portions of the floors of the left and right buildings near the joints separated by the joints, and fixed to the pair of recesses, respectively. A pair of fixed metal fittings, at least two or more pantograph-shaped telescopic links whose both ends are fixed to the pair of metal fittings or the body of the left and right building floor parts, and to cover the pair of concave portions. A joint cover in which both side walls having flanges for covering the left and right floor surfaces on both sides of the upper part are formed on an inclined surface, and a plurality of joints attached to the pair of fixing brackets at predetermined intervals so as to come into contact with both side walls of the joint cover. It is composed of individual rollers and an urging mechanism attached to the expansion link that urges the joint cover so that it is always in contact with the rollers. Come, both side walls of the width dimension becomes smaller joint cover over a plurality of rollers inclined surface of the joint portion can be protruded upward smoothly moved. Therefore, the left and right buildings can be swayed by the amount obtained by subtracting the minimum width dimension of the expansion link from the joint width dimension, and it is possible to prevent the joint portion width dimension from being reduced by the joint device as in the past. it can.

(2) According to (1) above, when the width of the joint is increased, the floor surfaces of the left and right buildings and the joint cover are separated from each other. Therefore, since it is possible to absorb the movement corresponding to the extension dimension of the elastic link, it is not damaged even in a large shaking motion.

(3) Since the joint cover is urged by the urging mechanism so as to cover the pair of concave portions by the above (1), even if the joint cover moves due to an earthquake or the like, when the swaying motion is stopped, the original joint cover is restored. Can be returned to the state automatically. Therefore, it can be used safely without trouble.

(4) According to the above (1), the flange of the joint cover can cover the gap of the concave portion formed on the floor surface. Therefore, it is possible to efficiently prevent dust and the like from entering the gap and prevent malfunctions due to the dust and the like.

(5) Claims 2, 3, and 4 are also from the above (1) to
The same effect as (3) can be obtained.

[Brief description of the drawings]

FIG. 1 is a sectional view of a first embodiment of the present invention.

FIG. 2 is a plan view of the first embodiment of the present invention.

FIG. 3 is an explanatory view of a fixing bracket.

FIG. 4 is an explanatory diagram of a telescopic link.

FIG. 5 is an explanatory view of a joint cover.

FIG. 6 is an explanatory view of a biasing mechanism.

FIG. 7 is an operation explanatory diagram when the joint portion is large.

FIG. 8 is an operation explanatory diagram when the joint portion becomes small.

FIG. 9 is a plan view of the second embodiment of the present invention.

FIG. 10 is a sectional view of a second embodiment of the present invention.

FIG. 11 is an explanatory view of a joint cover.

FIG. 12 is a sectional view of a third embodiment of the present invention.

FIG. 13 is an explanatory view of a fixing bracket.

FIG. 14 is an explanatory view of a joint cover.

FIG. 15 is a sectional view of a fourth embodiment of the present invention.

FIG. 16 is a plan view showing a state in which a roller is attached.

FIG. 17 is an explanatory diagram of an operating state.

FIG. 18 is a sectional view of a fifth embodiment of the present invention.

FIG. 19 is an explanatory diagram of an operating state.

[Explanation of symbols]

1: concave part, 2: joint part, 3: building, 4: fixing metal fittings, 5: fixing screw, 6, 6A: roller, 7: telescopic link, 8: pivot support part, 9: telescopic link body, 10: pivot pin , 11: Hinge member, 12, 12A: Joint cover, 13: Recess, 14: Tile or decorative plate, 15: Flange, 16: Joint cover body, 17: Concrete, 18: Energizing mechanism, 19: Pivot pin, 20: locking piece, 21: biasing spring, 22: stopper piece, 23, 23A, 23B, 23C, 23D: floor joint device.

Claims (4)

[Claims] 1. A pair of recesses formed so as to open to the joints at portions of the floors of the left and right buildings near the joints that are separated by the joints, and are fixed to the pair of recesses, respectively. A pair of fixing metal fittings, and at least two or more pantograph-shaped telescopic links whose both ends are fixed to the pair of fixing metal fittings or the body of the floor of the left and right buildings.
A joint cover in which both side walls each having a flange covering the left and right floor surfaces on both sides of the upper portion so as to cover the pair of recesses is formed on an inclined surface, and the pair of fixing metal fittings are in contact with both side walls of the joint cover. A floor joint device comprising a plurality of rollers attached at predetermined intervals, and an urging mechanism attached to the expansion link for urging the joint cover so as to always contact the roller. . 2. A pair of recesses formed so as to open to the joints in portions of the floors of the left and right buildings near the joints separated by the joints, and fixed to the pair of recesses, respectively. A pair of fixing brackets having inclined side walls, and a pantograph-shaped telescopic arm whose both ends are fixed to the pair of fixing brackets or the skeleton of the floor of the left and right buildings,
A dish-shaped joint cover attached so as to cover the recess formed by the pair of fixing metal fittings, and side walls of the inclined surfaces of the pair of fixing metal fittings attached at predetermined intervals to both side walls of the plate-shaped joint metal fitting cover. A plurality of rollers that come into contact with the joint cover, and a biasing mechanism attached to the telescopic link that constantly biases the joint cover so that the rollers come into contact with the side walls of the inclined surfaces of the pair of fixing brackets. A characteristic floor joint device. 3. A pair of recesses formed so as to open to the joints in portions of the floors of the left and right buildings near the joints separated by the joints, and fixed to the pair of recesses, respectively. Fixing metal fittings, a joint cover whose both side walls are formed on the inclined surface so as to cover the recess formed by the pair of fixing metal fittings, and the pair of fixing metal fittings so as to be in contact with both side walls of the joint covering. A floor joint device comprising a plurality of rollers mounted at predetermined intervals. 4. A pair of recesses formed so as to open to the joints at portions of the floors of the left and right buildings, which are separated by the joints, near the joints, and a pair of recesses near the side walls. A plurality of rollers attached at predetermined intervals to the site, and a joint cover having both side walls formed on an inclined surface in contact with the rollers so as to cover the pair of recesses, and flange portions formed on the left and right upper end portions. A floor joint device characterized by being provided.