JP2024099095A - Joint device for floor - Google Patents

Abstract

To provide a joint device for a floor capable of accommodating swing movements in various directions and of sealing joints.SOLUTION: A joint device for a floor for sealing joints between one frame and the other frame comprises: a first joint plate support provided on the one frame; a second joint plate support provided on the other frame; a joint plate supported at one end by the first joint plate support and supported at the other end by the second joint plate support to block the joints; a plurality of support cylinders provided on the other frame, extendable and retractable in the left-right direction and capable of supporting a bottom surface of the joint plate; and a support mechanism for supporting protruding ends of the plurality of support cylinders. The support mechanism comprises: a first guide portion extending in the front-back direction on one frame; a second guide portion slidably provided in the front-back direction on the first guide portion and extending in the left-right direction; and a plurality of support platforms slidably provided in the left-right direction on the second guide portion and supporting the protruding ends of the plurality of support cylinders.SELECTED DRAWING: Figure 1

Description

The present invention relates to a floor joint device that seals the joints between structural members that are installed through the joints.

Conventionally, floor joint devices for closing joints formed in places where the sliding width of the joint plate cannot be sufficiently secured, such as near the boundary line of another person's property or a public road, or in a place close to a wall, have been described as comprising: "one floor structure formed so that the width dimension to the boundary line is approximately the same as the width dimension of the joints of the left and right floor structures provided through the joints; a joint plate support mechanism fixed to the upper surface of the one floor structure at a predetermined interval and having an operating rod attached so as to always protrude from a plurality of support tubes to the joints by the width dimension of the joints; and a fixed support tube or one of the floor structures so as to be located on the upper surface of the support tube of the joint plate support mechanism, the lower end of which on the joint side is formed on an inclined surface protruding toward the joints. A floor joint device is known, which is characterized by comprising a joint plate, the other floor structure having a protrusion located through the joint and the one floor structure and having an upper surface position approximately the same as the upper surface position of the fixed joint plate, a joint plate whose rear end is attached to the protrusion on the joint side of the other floor structure so as to be able to move upward and whose tip is supported by the joint plate support mechanism to cover the joint, a stopper that regulates the protruding position of the operating rod of the joint plate support mechanism, and a support body fixed to the joint side of the one floor structure that fits under the protrusion of the other floor structure and supports a support rod that protrudes downward from the tip of the operating rod of the joint plate support mechanism so as to be able to slide (Patent Document 1).

However, with this type of floor joint device, the parts and members (supports) that support the support rod are the same structure as the structure to which the support rod is fixed, so although it can absorb swaying movements in the front-to-back and left-to-right directions, there is a drawback in that if the parts and members (supports) that support the support rod are a different structure from the structure to which the support rod is fixed, it cannot slide smoothly in the front-to-back direction.

Patent No. 4499033

In view of the above-mentioned conventional shortcomings, the present invention aims to provide a floor joint device that can accommodate shaking movements in various directions and can seal the joints.

The above and other objects and novel features of the present invention will become more fully apparent from the following description taken in conjunction with the accompanying drawings.
However, the drawings are for illustrative purposes only and are not intended to limit the technical scope of the present invention.

In order to achieve the above object, the floor joint device described in claim 1 of the present invention is a floor joint device that closes a joint between one frame and the other frame, and is composed of a first joint plate support part provided on the one frame, a second joint plate support part provided on the other frame, a joint plate whose one end side is supported by the first joint plate support part and whose other end side is supported by the second joint plate support part and closes the joint part, a plurality of support tubes provided on the other frame that can expand and contract in the left-right direction and support the bottom surface of the joint plate, and a support mechanism that supports the protruding ends of the plurality of support tubes, and the support mechanism is characterized in that it is composed of a first guide part that extends in the front-rear direction provided on one frame, a plurality of second guide parts that are slidably provided on the first guide part in the front-rear direction and extend in the left-right direction, and a plurality of support stands that are slidably provided on the second guide part in the left-right direction and support the protruding ends of the plurality of support tubes.

The support base of the floor joint device described in claim 2 is characterized in that it is composed of a bar-shaped support bar arranged to connect the protruding end sides of the multiple support tubes, and a multiple support base main body arranged to support the bottom surface of the support bar.
The joint plate of the floor joint device described in claim 3 is characterized in that, under normal circumstances, one end side is supported by the first joint plate support portion and the other end side is supported by the second joint plate support portion, and when the joint portion becomes wider due to an earthquake, one end side is supported by the first joint plate support portion and the other end side is supported by the support tube.

As is clear from the above description, the present invention provides the following advantages.
(1) In the inventions described in claims 1 and 3, since a support tube and a support mechanism for supporting this support tube are provided, the joint plate can be supported without forming a long second joint plate support portion, and joint portions formed near boundaries or near wall surfaces can be reliably sealed.
(2) Furthermore, since multiple support tubes are provided at the bottom of the joint, even if the left and right structures shake during an earthquake in such a way that the joint becomes wider, the joint can be prevented from opening widely.
(3) The first guide portion and the second guide portion allow the support mechanism to slide relative to one of the bodies not only in the left-right direction but also in the front-rear direction.
Therefore, it is possible to respond to swinging movements in various directions.
(3) In the invention described in claim 2, the same effects as those in (1) and (2) can be obtained, and the support tube can be supported efficiently.

1 to 8 are explanatory diagrams showing a first embodiment of the present invention.
9 and 10 are explanatory diagrams showing a second embodiment of the present invention.
FIG. 1 is a plan view of a floor joint device showing a first embodiment (in normal operation). FIG. 2 is a cross-sectional view taken along line 2-2 of FIG. FIG. 3 is a cross-sectional view taken along line 3-3 in FIG. FIG. FIG. An explanatory diagram of operation from the front view where the joint has narrowed due to an earthquake. An explanatory diagram of operation from the front view where the joint has widened due to the earthquake. A diagram explaining the operation from a plan view when the structure sways in different forward and backward directions due to an earthquake. FIG. 5 is a plan view of a floor joint device showing a second embodiment. 10 is a cross-sectional view taken along line 10-10 in FIG. 9 .

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail with reference to the embodiments for carrying out the present invention shown in the drawings.
In the first embodiment for carrying out the present invention shown in Figures 1 to 8, reference numeral 1 denotes a floor joint device installed between one body 3 and another body 4 provided with a joint portion 2 interposed therebetween.

The left-right direction refers to the left-right direction in FIG. 1 (plan view) (the longitudinal direction of the second guide portion 25), the front-rear direction refers to the up-down direction in FIG. 1 (the longitudinal direction of the first guide portion 24), and the up-down direction refers to the up-down direction in FIG. 2.

In addition, in this invention, the framework refers to a structure in which a joint plate can be installed, such as a building, road, slab, elevator shaft, etc., and an entrance includes not only an entrance with a door or gate, but also a passageway through which people, vehicles, etc. can pass.

As shown in Figures 1 to 3, the floor joint device 1 of this embodiment is composed of a first joint plate support part 5 provided on one of the frames 3, a second joint plate support part 6 provided on the other frame 4, a joint plate 7 supported at one end by the first joint plate support part 5 and at the other end by the second joint plate support part 6, which closes the joint part 2, a number of support tubes 8 provided on the other frame 4, which are expandable in the left-right direction (longitudinal direction) and capable of supporting the bottom surface of the joint plate 7, and a support mechanism 9 which supports the protruding ends of the plurality of support tubes 8.

As shown in FIG. 2, one of the frames 3 is a structure formed on the ground in this embodiment (which sways in sync with the ground during an earthquake), and a first joint plate support 5 is formed on the floor or wall surface on the joint 2 side. In addition, a seismic isolation pit 10 is formed below the joint 2.

As shown in FIG. 2, for example, in this embodiment, the first joint plate support 5 is a recessed portion formed on the floor surface on the joint portion 2 side of one of the structures 3 so as to extend in the front-to-rear direction, and is provided with a locking pile 12 that is inserted into a pile case 11 provided on both front and rear ends of one end of the joint plate 7 described below. Note that the first joint plate support 5 may be formed by fixing a metal member that is approximately angle-shaped or approximately crank-shaped to the wall surface on the joint portion 2 side of one of the structures 3.

As shown in FIG. 2, the other body 4 is a structure provided via a seismic isolation device 13 such as seismic isolation rubber provided in the seismic isolation pit 10 of the one body 3, and a second joint plate support portion 6 is formed on the floor surface on the joint side. A floor surface 4a is formed so as to be continuous with this second joint plate support portion 6, and a wall surface 4b is formed so as to rise up from the end portion of this floor surface 4a (the portion on the left-right opposite side of the joint portion 2) in this embodiment. In addition, a plurality of support tubes 8 are provided on the lower portion of the second joint plate support portion 6 so as to protrude toward the one body 3.

As shown in FIG. 2, the second joint plate support 6 is a recessed portion extending in the front-to-rear direction formed at the end of the other structure 4 on the joint 2 side, and at the end opposite the joint 2, a sloped surface 14 is formed on which the joint plate 7 can climb up if the joint 2 narrows due to an earthquake.

In this embodiment, the second joint plate support part 6 is formed integrally with the floor surface on the joint side of the other body 4 in a recessed shape. However, for example, a fixed plate or the like having a sloped surface 14 that rises onto the floor surface of the other body 4 may be fixed, and the floor surface on the joint side of the part to which the fixed plate or the like is not fixed may serve as the second joint plate support part 6, or the upper surface of the tube member 20 of the support tube 8 may serve as the second joint plate support part 6.

As shown in FIG. 1, under normal circumstances, one end of the joint plate 7 is supported by the first joint plate support part 5, and the other end is supported directly or indirectly (through a support plate) by the second joint plate support part 6, with multiple joint plates provided without gaps in the front-to-rear direction of the joint part 2.

As shown in FIG. 4, the joint plate 7 is composed of a joint plate body 15 made of a metal material and rectangular in plan view, the pile case 11 provided on both sides of one end of the joint plate body 15, a filling member 16 such as mortar or concrete filled into the joint plate body 15, a decorative panel 17 such as a marble tile or brick attached to the top surface of the filling member 16, and a cover plate 19 attached to the other end side of the joint plate body 15 via a hinge member 18.

In addition, by providing a cover plate 19 via a hinge member 18 on one end side of the joint plate 7, it is possible to prevent gaps and steps from occurring.

In addition, the joint plate 7 can be made of various known joint plates, not just a shallow dish-shaped joint plate body as in this embodiment.

The support tube 8 is composed of a square pipe-shaped tube member 20 fixed to the other body 4, a support tube body 21 that is retractable in the tube member 20 and can support the bottom surface of the joint plate 7 with its upper surface, a biasing device 22 that constantly biases the support tube body 21 toward one of the bodies, and a stopper 23 that limits the protruding length of the support tube body 21 so that the support tube body 21 does not displace (protrude) toward one of the bodies beyond a predetermined position. In this embodiment, the stopper 23 is a wire with one end fixed to the support tube body 21 and the other end fixed to the other body 4, but for example, the tube member 20 and the support tube body 21 may each have an engagement piece, and when the support tube body 21 protrudes to a predetermined length, the engagement piece abuts against the stopper 23 that controls the support tube body 21 not to protrude any further.

In this embodiment, the support tubes 8 are installed with almost no gaps in the front-to-rear direction, so that even if the left and right frames 3 and 4 sway due to an earthquake so that the joint 2 widens, the joint 2 can be sealed with almost no gaps. Note that, depending on the installation location, such as a place where it is not expected that people or objects will fall into the joint, or a place where only vehicles pass through, multiple support tubes 8 may be installed with some gaps in the front-to-rear direction.

If a step occurs between the top surface of the support tube body 21 and the second joint plate support part 6, it is desirable to provide an inclined surface or the like on the support tube 8 or the joint plate 7 to eliminate the step.

As shown in FIG. 5, the support mechanism 9 is composed of a pair of rail-shaped first guide parts 24 extending in the front-rear direction provided on one of the bodies 3 below the joint part 2, a plurality of rail-shaped second guide parts 25 extending in the left-right direction that engage with the first guide parts 24 and are slidable in the front-rear direction, and a support base 26 that is slidably mounted on the second guide parts 25 in the left-right direction and supports the protruding ends of the plurality of support tubes 8.

In this embodiment, the first guide portion 24 is fixed to the floor surface 10a of the seismic isolation pit 10 of one of the structures 3 or to the wall surface 3a of one of the structures 3, and is a metal rail member that is roughly U-shaped in cross section with an open top, and it is desirable to use one with dimensions larger than the width of the left-right swaying caused by an earthquake. Note that in this embodiment, a pair of first guide portions 24 are provided, but one first guide portion 24 or three or more first guide portions 24 may be provided.

In this embodiment, the second guide section 25 is a metal rail member that is roughly U-shaped in cross section and has an open top, and is provided on each of the pair of first guide sections 24 so as to be slidable in the front-rear direction via a sliding member 27 such as a roller, a sliding member, or a bearing. A plurality of second guide sections 25 are provided at predetermined intervals in the front-rear direction. The support base 26 is attached to the second guide section 25.

The support base 26 is configured with a plurality of support base bodies 28 that are slidably mounted on a pair of second guide parts 25 in the left-right direction and are provided at a predetermined interval in the front-rear direction, connection members 29 whose lower ends are attached to the support base bodies 28, and a bar-shaped support bar 30 that extends in the front-rear direction and is provided to connect the protruding end sides of the plurality of support tubes. The bottom surfaces of the protruding end sides of the plurality of support tubes are fixed to this support bar 30, and the upper ends of the plurality of connection members 29 are connected in a fixed state.

A sliding member 27 is attached to the bottom surface of the support base body 28, and this sliding member 27 engages with the second guide parts 25 and is slidable in the left-right direction. In this embodiment, one support base body 28 is attached to one pair of second guide parts 25.

In addition, instead of using the support bar 30, one support base body 28 and one or more support tube bodies 21 may be connected directly or via a connecting member 29 to support the protruding end side of the support tube body 21. In addition, in this embodiment, a solid square timber is used as the support bar 30, but a pipe-shaped member or solid wood may also be used. Furthermore, one support bar 30 may be used throughout, or multiple support bars 30 may be connected in the longitudinal direction.

When the bodies 3 and 4 shake left and right in an earthquake and the joint section 2 narrows, as shown in Figure 6, the joint plate 7 climbs up the sloped surface 14 of the second joint plate support section 6, and the support tube body 21 sinks into the inside of the tube member 20, absorbing the shaking caused by the earthquake.

At this time, the support mechanism 9 has the support base 26 (support base main body 28, connecting member 29, and support bar 30) sliding left and right in unison with the support tube main body 21 along the second guide portion 25, absorbing the shaking movement.

When the shaking caused by the earthquake ends, the support tube body 21 is pressed by the force of the force applying device 22 and returns to its specified position, and the joint plate 7 and support mechanism 9 (support base 26) also return to their normal state.

When the structures 3 and 4 shake left and right during an earthquake and the joint 2 widens, the amount of protrusion of the support tube body 21 is limited by the wire 23, and the support base 26 slides left and right in sync with the second guide section 25 to absorb the shaking, as shown in Figure 7.

In addition, the joint plate 7 slides left and right with one end supported by the first joint plate support part 5 and the other end supported by the support tube body 21 of the support tube 8, absorbing shaking caused by an earthquake. Since the support tube body 21 is supported by the support base 26, it can reliably support the load of the joint plate 7, etc.
When an earthquake causes the frames 3 and 4 to sway in different forward and backward directions, as shown in FIG. 8, the other end of the joint plate 7 slides forward and backward on the second joint plate support portion 6 to absorb the swaying movement.

At this time, the support base 26 and the second guide portion 25 slide back and forth along the first guide portion 24, absorbing the shaking caused by the earthquake.
[Different modes for carrying out the invention]
Next, a description will be given of different embodiments for carrying out the present invention shown in Figures 9 and 10. In describing these different embodiments for carrying out the present invention, the same components as those in the first embodiment for carrying out the present invention are designated by the same reference numerals, and duplicated descriptions will be omitted.

The second embodiment of the present invention shown in Figures 9 and 10 differs from the first embodiment of the present invention mainly in that a groove formed in a recessed shape in the floor surface 10a of the seismic isolation pit 10 is used as the support mechanism 9A with the first guide portion 24A, and even if a floor joint device 1A uses a joint plate support base 8A equipped with such a support mechanism 9A, it is possible to obtain the same effect as the first embodiment of the present invention.

In the embodiment of the present invention, a shallow dish-shaped joint plate body filled with a filling material is used as the joint plate, but other known joint plates can also be used.

The present invention is used in the floor jointing device manufacturing industry.

1, 1A: Floor joint device, 2: Joint part,
3: One body, 4: The other body,
5: first joint plate support portion; 6: second joint plate support portion;
7: joint plate; 8: support tube;
9, 9A: support mechanism; 10: seismic isolation pit;
11: pile case; 12: locking pile;
13: seismic isolation device; 14: sloped surface;
15: joint plate body, 16: filling member,
17: decorative plate; 18: hinge member;
19: cover plate, 20: cylindrical member,
21: Support tube main body, 22: Biasing tool,
23: stopper; 24, 24A: first guide portion;
25: second guide portion; 26: support base;
27: Sliding member, 28: Support body,
29: connecting member; 30: support bar.

Claims (3)

A floor joint device for closing a joint between one structure and the other structure, comprising: a first joint plate support portion provided on the one structure; a second joint plate support portion provided on the other structure, the end portion opposite the joint portion being formed on a sloped surface; a joint plate having one end supported by the first joint plate support portion and the other end supported by the second joint plate support portion, closing the joint portion; a plurality of support tubes provided on the other structure, expandable in the left-right direction and capable of supporting the bottom surface of the joint plate; and a support mechanism for supporting the protruding ends of the plurality of support tubes.
The support mechanism is a floor joint device composed of a first guide portion extending in the front-to-rear direction provided on one of the main bodies, a plurality of second guide portions slidably provided on the first guide portion in the front-to-rear direction and extending in the left-to-right direction, and a plurality of support bases slidably provided on the second guide portion in the left-to-right direction and supporting the protruding ends of the plurality of support tubes. The floor joint device according to claim 1, characterized in that the support base is composed of a bar-shaped support bar arranged to connect the protruding end sides of the multiple support tubes, and multiple support base bodies arranged to support the bottom surface of the support bar. The floor joint device according to claim 1, characterized in that, under normal circumstances, one end of the joint plate is supported by the first joint plate support portion and the other end is supported by the second joint plate support portion, and when the joint portion widens due to an earthquake, one end is supported by the first joint plate support portion and the other end is supported by a support tube.

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