JP2001193176A - Joint device for floor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a joint device for a floor, capable of sliding a joint plate smoothly even if right and left buildings are largely vibrated in the lateral direction, and efficiently inhibiting deformation even if load is applied to a pair of cover plates of a recessed region outside both end parts of the joint plate so as to be used safely. SOLUTION: This joint device for a floor comprises a joint plate, with both end parts positioned in the substantially central part of a pair of recessed parts formed in the floor surfaces of the joint part sides of right and left buildings to cover the joint part, a pair of cover plates for covering regions positioned in a pair of recessed parts of both end parts of the joint plate, a pair of cover plate load support means including plural pairs of lower support rollers supported in the recessed parts supported at designated spaces on a support capable of supporting load applied to the paired cover plates and plural upper support rollers for supporting the paired cover plates supported at designated spaces on the support, and a pair of center holding means for always positioning the paired cover plate load support means in the substantially central areas of the recessed parts.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a joint device for floor covering a joint portion of a floor portion between right and left buildings having a large moving amount, such as a seismic isolation building built through a joint portion.

[0002]

2. Description of the Related Art Conventionally, this type of floor joint device has a pair of recesses formed on the floors on the joint side of left and right buildings so as to open into the joints, and a bottom surface of the pair of recesses. A pair of base rails fixed so as to cover, a joint plate that is slidably positioned on both sides at a substantially central portion of the pair of base rails, and covers the joint part, and the pair of base rails of the joint plate. It comprises a pair of cover plates attached to the pair of base rails so as to slidably cover the located portion.

[0003]

The conventional joint device for floors has no problem in the setting where the left and right buildings have a small swinging motion in the left and right directions, but in the setting where the swinging motion in the different left and right directions is large, the joints are located on both sides of the joint plate. There is a disadvantage that a large concave portion is formed, and the pair of cover plates in the concave portion are deformed when a load is applied. In order to solve such a defect, when the rigidity of the pair of cover plates is increased, the pair of cover plates is deformed. There was a drawback that the plate became heavy and the joint plate did not slide smoothly.

The present invention has been made in view of the above-mentioned conventional drawbacks,
The joint plate can be slid smoothly even if the left and right buildings swing greatly in the left and right direction, and the joint plate can be deformed even if a load is applied to a pair of cover plates in the concave portions outside both ends of the joint plate. It is an object of the present invention to provide a floor joint device that can be efficiently blocked and used safely.

The above and other objects and novel features of the present invention will become more completely 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 on the joint-side floor of the left and right buildings built through joints so as to open to the joints. A pair of recesses, an joint plate slidably movable within the pair of recesses with both ends positioned substantially at the center of the pair of recesses and covering the joint, and the pair of joints at both ends of the joint plate. A pair of cover plates fixed to the frame of the left and right buildings so as to cover a portion located in the concave portion,
A plurality of pairs of lower support rollers supported by the concave portions, which are supported at predetermined intervals by a support capable of supporting a load applied to the pair of cover plates in the concave portions in the pair of cover plates, A pair of cover plate load supports comprising a plurality of upper support rollers supporting the pair of cover plates supported at a predetermined interval; and a pair of cover plate load supports formed of concave portions in the pair of cover plates. The floor joint device is constituted by a pair of center maintenance tools which are always located substantially at the center.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in detail with reference to the embodiments shown in the drawings.

In the first embodiment of the present invention shown in FIGS. 1 to 9, reference numeral 1 denotes a joint of a floor portion between left and right buildings 3, such as a base-isolated building, built via a joint 2. 2 is a pair of joints formed on the joint surfaces of the left and right buildings 3 and 3 so as to open to the joints 2. And a pair of base rails 6, 6 fixed to the frame members 3b, 3b of the part by a plurality of fixing screws 5 so as to cover the bottom surfaces of the pair of recesses 4, 4; Base rails 6, 6
The joint plate 2 covers the joint portion 2, and the both end portions of which the substantially central portion of the joint plate 7 is always located at the substantially central portion of the joint portion 2. The frames 3b, 3b of the left and right buildings 3, 3
Alternatively, the pair of base rails 6, 6, in the embodiment of the present invention, are located on the pair of base rails 6, 6, and the center maintaining mechanism 8 and the joint plate 7 are located on the pair of base rails 6, 6. The frame 3b, 3b of the left and right buildings 3, 3 or the pair of base rails 6, 6, which cover the parts so as to be slidable, and a plurality of countersunk screws 9 on the pair of base rails 6, 6, in the embodiment of the present invention. And a load applied to the pair of cover plates 10 and 10 provided at the concave portions 4a and 4a located outside the both side portions of the joint plate 7. A pair of cover plate load supports 11, 11 movable by the movement of the joint plate 7,
The pair of cover plate load supporting members 11, 11 are constituted by a pair of center maintaining members 34, 34 which are always positioned substantially at the center of the concave portions in the pair of cover plates 10, 10.

The pair of base rails 6, 6 are formed of a metal material such as aluminum, aluminum alloy, stainless steel alloy or the like. As shown in FIG. A mounting piece 14 also serving as a stopper having a plurality of fixing screw insertion holes 13 formed on one side of the base rail main body 12 so as to protrude downward, A plurality of fixing screw insertion holes 1 are formed in a side surface formed to protrude in an inverted L-shape.
3 and a cover plate mounting support piece 16 having a plurality of countersunk screw insertion holes 15 on the upper surface.

The joint plate 7 is, as shown in FIG.
A joint plate body 17 made of a shallow dish-shaped metal material, floor materials 19 such as tiles and decorative boards attached to the joint plate body 17 via mortar and concrete 18, and both side portions of the joint plate body 17 And a plurality of hemispherical support pieces 20 formed to protrude downward from the bottom surface closer to it.

As shown in FIG. 3, the center maintaining mechanism 8 is formed with four square frames, and the joint plate 7 is provided at the center.
Pantograph-shaped telescopic link 2 having a central pivot portion 22 for pivotally supporting a central pivot pin 21 attached to the central portion of the
3 and pivot pins 24, 2 at both ends of the telescopic link 23.
At least two or more central maintenance link mechanisms 26, each of which includes a mounting bracket 25, 25 pivotally supported by 4, are used in the embodiment of the present invention.

The pair of cover plates 10, 10 are formed of a metal material such as aluminum, aluminum alloy, stainless steel alloy or the like. As shown in FIG. At the rear end, there are formed a plurality of countersunk screw insertion holes 15 of the cover plate mounting support pieces 16 of the pair of base rails 6 and a countersunk screw insertion hole 28 formed at a position corresponding to the plurality of counterscrews. ing.

The pair of cover plate load supports 1
As shown in FIG. 7, reference numerals 1 and 11 denote three axial supports 2
9, 29, 29 and the three supports 29, 29, 29
The three supports 29, 29, and 2 are provided at corners of an equilateral triangle or an isosceles triangle attached at predetermined intervals to the corners.
A plurality of triangular support plates 31 having shaft insertion holes 30, 30, 30 into which 9 is inserted, and two support members 2 located below the three support members 29, 29, 29
A plurality of pairs of lower support rollers 32, 32 supported by a pair of base rails 6, 6 fixed in the pair of recesses 4, 4 rotatably mounted at predetermined intervals on the pair 9, 9, 29; And a plurality of upper support rollers 33 supporting the pair of cover plates 10, 10 rotatably mounted at predetermined intervals on the support 29 positioned above the support 29, 29, 29. .

One end of the pair of center retainers 34, 34 is attached to the end of the joint plate 7, and the other end is the support 29 or the support plate 3 of the pair of cover plate load supports 11, 11. At least two biasing springs 35, 35, one end of which is attached to the cover plate attachment supporting piece 16 of the pair of base rails 6, 6, and the other end of which is the pair of covers. It comprises at least two or more other urging springs 36, 36 attached to the support 29 of the plate load supports 11, 11 or the support plate 31.

The joint device 1 for floors having the above-described structure normally has concave portions 4a, 4a formed outward from both side portions of the joint plate 7.
A pair of cover plate load supports 11, 1 located inside
According to 1, even if a large load is applied to the pair of cover plates 10 and 10 at the concave portions 4a and 4a, the load is supported and the pair of cover plates 10 and 10 is prevented from being deformed. When a large load is applied, the pair of cover plate load supports 11, 11 have a stable state because a plurality of pairs of lower support rollers 32, 32 and a plurality of upper support rollers 33 are located at the corners of the triangle. Thus, the load applied to the pair of cover plates 10 and 10
It can be supported in a state where deformations of 0 and 10 are prevented.

When the left and right buildings 3 and 3 swing in different left and right directions due to an earthquake or the like, the center of the joint plate 7 is substantially centered by the center maintaining mechanism 8 as shown in FIGS. Joint plate 7
Although the recesses 4a, 4a formed on the outer sides of both sides of the cover plate become larger or smaller, the pair of cover plate load supports 11, 11 are connected to one of the biasing springs 35, 35 of the pair of center retainers 34, 34. And the other biasing spring 3
By the biasing forces of 6, 36, the concave portions 4a, 4a are moved so as to be located substantially in the center, and the load applied to the pair of cover plates 10, 10 is efficiently supported.

[0017]

FIG. 10 to FIG.
Hereinafter, different embodiments of the present invention will be described. 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.

In the second embodiment of the present invention shown in FIGS. 10 and 11, the main difference from the first embodiment of the present invention is that the center maintenance tool 34 is used without using the center maintenance mechanism. , 34, the center portion of the joint plate 7 is always positioned at the center portion of the joint portion 2. Therefore, the floor joint device 1A having such a configuration also has the first aspect of the present invention.
The same operation and effect as those of the embodiment can be obtained.

The third embodiment of the present invention shown in FIGS. 12 to 14 is different from the second embodiment of the present invention mainly in that a pair of cover plate load supports 1 are provided.
Pantograph-shaped center maintenance tools 34A, 34
A at the point where A is attached,
The same effect as that of the above-described second embodiment of the present invention can also be obtained with the floor joint device 1B configured using A.

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 other end of the joint plate 7 is connected to a hinge member 37. With the point that the floor joint device 1C thus configured is attached to the frame 3c on the wall surface of the other building 3 via the
The same functions and effects as those of the first embodiment of the present invention can be obtained.

[0021]

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

(1) A pair of recesses formed on the floor surface on the joint side of the left and right buildings built via the joints, and a pair of recesses formed to open into the joints, and a substantially central portion of the pair of recesses. And a joint plate slidably movable in the pair of recesses at which both ends are located and covering the joint, and the left and right joints are provided so as to cover portions of the joint plate located at the pair of recesses at both ends. A pair of cover plates fixed to the building frame, and a pair of cover plates, which are supported at predetermined intervals by a support capable of supporting a load applied to the pair of cover plates in the concave portions, are supported by the concave portions. A pair of cover plate load supports comprising a plurality of pairs of lower support rollers, a plurality of upper support rollers supporting the pair of cover plates supported by the support at predetermined intervals, and a pair of covers. Since the plate load supporting device is constituted by a pair of center maintaining tools that are always positioned substantially at the center of the concave portions in the pair of cover plates, even if a large concave portion is formed outside both side portions of the joint plate, The load applied to the pair of cover plates at the concave portion can be supported by the pair of cover plate load supports. Therefore, it is not necessary to use a pair of heavy cover plates to prevent deformation, and the joint plate can be slid smoothly without deformation.

(2) According to the above (1), it is possible to install the cover plate at a position where large swinging movement is possible only by installing a pair of cover plate load supports. Therefore, it is easy to manufacture and can be easily installed.

(3) According to the above (1), the pair of cover plate load supports can be moved according to the movement of the joint plate. Therefore, the joint plate can be smoothly moved without hindering the movement of the joint plate.

(4) According to the above (1), the cover plate load support using a plurality of pairs of lower support rollers and a plurality of upper support rollers is used. In addition to supporting the load applied to the cover plate, the slide plate can be smoothly slid in the recess in a stable state.

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

[Brief description of the drawings]

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

FIG. 2 is an enlarged sectional view taken along line 2-2 of FIG.

FIG. 3 is a bottom view of the first embodiment of the present invention.

FIG. 4 is an explanatory diagram of a base rail according to the first embodiment of the present invention.

FIG. 5 is an explanatory diagram of a joint plate according to the first embodiment of the present invention.

FIG. 6 is an explanatory diagram of a cover plate according to the first embodiment of the present invention.

FIG. 7 is an explanatory diagram of a load supporting member for a cover plate according to the first embodiment of the present invention.

FIG. 8 is an operation explanatory diagram of the first embodiment of the present invention, in which a joint portion is widened;

FIG. 9 is an explanatory view of the operation of the first embodiment of the present invention in which the joints are narrowed.

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

FIG. 11 is an enlarged sectional view taken along line 11-11 of FIG. 10;

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

FIG. 13 is an enlarged sectional view taken along line 13-13 of FIG. 12;

FIG. 14 is an explanatory view of a cover plate and a center maintenance tool according to a third embodiment of the present invention.

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

16 is an enlarged sectional view taken along line 16-16 of FIG.

FIG. 17 is a bottom view of the fourth embodiment of the present invention.

[Explanation of symbols]

1, 1A, 1B, 1C: joint device for floor, 2: joint portion,
3: building, 4: concave, 5: fixed screw, 6: base rail, 7: joint plate,
8: Center maintenance mechanism, 9: Countersunk screw, 10: Cover plate, 11: Cover plate load support, 12: Base rail body, 13: Fixing screw insertion hole, 14: Mounting piece, 15: Fixing screw insertion hole, 16 : Cover plate attachment piece, 17: Joint plate body, 18: Mortar or concrete, 19: Floor material, 20: Support piece, 21: Central pivot pin, 22: Central pivot section, 2
3: Telescopic link, 24: pivot pin, 25: mounting bracket, 26: center maintaining link mechanism, 27: cover plate body, 28: countersunk screw insertion hole, 29: support, 30: shaft insertion hole, 31: support Plate, 3
2: Lower support roller 33: Upper support roller 34
34A: Central retainer, 35: One biasing spring, 3
6: the other urging spring, 37: hinge member.

Claims (3)

[Claims] 1. A pair of recesses formed so as to open to the joints on the floors on the joints side of the left and right buildings built via the joints, and a substantially central portion of the pair of recesses. An joint plate slidably movable within the pair of recesses at which both ends are located and covering the joint, and the left and right buildings so as to cover portions located at the pair of recesses at both ends of the joint plate; A pair of cover plates fixed to the skeleton, and supported at predetermined intervals by a support capable of supporting a load applied to the pair of cover plates in the recesses in the pair of cover plates, supported by the recesses A plurality of pairs of lower support rollers, a pair of cover plate load supports consisting of a plurality of upper support rollers supporting the pair of cover plates supported by the support at predetermined intervals,
A floor jointing device comprising a pair of center maintaining tools which constantly position the pair of cover plate load supporting tools substantially at the center of the recesses in the pair of cover plates. 2. A recess formed in the floor of one of the left and right buildings built via the joint, on the joint side, and an opening at the joint, and a substantially central portion of the recess. One end portion is located, the other end portion is attached to the frame of the other building, one end portion is slidable in a recessed joint plate, and a portion of the joint plate located in the recessed portion of one end portion. A cover plate fixed to the skeleton of the one building so as to cover the support plate and a support capable of supporting a load applied to the cover plate in a recess in the cover plate at a predetermined interval. A cover plate load support comprising a plurality of pairs of lower support rollers supported, a plurality of upper support rollers supporting the cover plate supported at predetermined intervals by the support, and the cover plate load support And a center maintenance tool which constantly positions the center of the recess in the cover plate. 3. A cover plate load supporting device includes three shaft-like supports and three equilateral triangles or isosceles triangles attached to the three supports at predetermined intervals. A plurality of support plates having a shaft insertion hole into which the plurality of supports are inserted; a plurality of pairs or a plurality of lower support rollers rotatably mounted on the three supports at predetermined intervals; 3. The floor joint device according to claim 1, wherein the joint device comprises a roller.