JP7809374B2 - Joint plate support mechanism and floor joint device - Google Patents

Description

The present invention relates to a joint plate support mechanism and floor joint device that support joint plates that seal clearances between structural members.

Conventional floor joint devices that seal clearances between floor surfaces and joint plates used in such floor joint devices include, for example, "a joint plate including a shallow dish-shaped joint plate body and a filler material filled into the joint plate body" and "a floor joint device that covers the joint between left and right floor frames, which is provided through a joint portion, with a joint cover formed by welding a joint cover body made of multiple steel or stainless steel plates, wherein the connecting portion of the joint cover body forms a pulse wave-shaped or dovetail wave-shaped mating portion, and the corners of the mating portion are connected by spot welding to prevent distortion" (Patent Document 1).

However, while such floor joint devices can seal clearances without any problems, devices that use metal plates, such as the floor joint device in Patent Document 1, may bend downward when people or vehicles pass by and apply load to the joint cover, and may bend significantly, particularly when the clearance widens due to an earthquake.

Patent No. 5044605

In light of the above-mentioned drawbacks of conventional joint plates, the present invention aims to provide a joint plate support mechanism and floor joint device that can prevent joint plates from bending downward and absorb shaking caused by earthquakes.

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 do not limit the technical scope of the present invention.

In order to achieve the above object, the joint plate support mechanism of the present invention described in claim 1 is a joint plate support mechanism that supports a joint plate installed in a clearance portion formed between one base body and the other base body,
The joint plate support member is composed of one guide portion provided on the clearance portion side of one of the supporting bodies, the other guide portion provided on the other supporting body so as to face the one guide portion, a plurality of movable support members each having one end supported on the one guide portion so as to be slidable in the front-to-rear direction and the other end supported on the other guide portion so as to be slidable in the front-to-rear direction, and one or more joint plate support members which are arranged to span the plurality of movable support members and support the bottom of the joint plate, wherein one of the joint plate support members is attached to approximately the center of the plurality of movable support members in a pivoted state so as to be able to rotate relatively by a pivot device, and is arranged so as to be always positioned approximately in the center of the clearance portion , and a rolling member is further provided at the portion of the joint plate support member which comes into contact with the bottom of the joint plate .

The movable support member of the joint plate support mechanism described in claim 2 is supported by the one guide portion and the other guide portion via a slide support member, and the slide support member is characterized by being composed of a slide body pivotally supported at each end of the movable support member and one or more sliding members provided at the bottom of the slide body.

The floor joint device of the present invention as set forth in claim 3 is a floor joint device for closing a clearance between one frame and another 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, one end side of one joint plate attached with the first joint plate support part supported and the other end side of the one joint plate support part, and a joint plate support mechanism for supporting the bottom of the joint plate, and the joint plate support mechanism is composed of one guide part provided on the clearance side of the one frame, and one guide part provided on the one guide a plurality of movable support members, one end of which is supported on one guide portion so as to be slidable in the front-to-rear direction, and the other end of which is supported on the other guide portion so as to be slidable in the front-to-rear direction; and one or more joint plate support members that are arranged to span the plurality of movable support members and support the bottom of the joint plate, wherein one of the joint plate support members is attached to approximately the center of the plurality of movable support members in a pivoted state so as to be able to rotate relatively by a pivot device, and is arranged so as to be always positioned approximately in the center of the clearance portion.

The movable support member of the floor joint device described in claim 4 is supported by the one guide portion and the other guide portion via a slide support member, and the slide support member is characterized in that it is composed of a slide body rotatably supported at both ends of the movable support member, and one or more sliding members provided at the bottom of the slide body.
The floor joint device according to claim 5 is characterized in that the joint plate is made of a magnetic material and is attracted to a magnet provided on the joint plate support member.
The floor joint device according to claim 6 is characterized in that the joint plate support member is further provided with a rolling member at a portion that comes into contact with the bottom of the joint plate.

As is clear from the above description, the present invention provides the following effects.
(1) In each of the inventions described in claims 1 and 3 , the bottom of the joint plate can be constantly supported by the joint plate support member that is always positioned approximately in the center of the clearance portion.
Therefore, even if a load is applied to the joint plate, the joint plate can be reliably prevented from bending.
(2) In each of the inventions described in claims 2 and 4 , the same effects as those of (1) can be obtained, and the movable support member can be made to follow the swaying movement more smoothly during an earthquake.
(3) The inventions described in claims 3 and 6 can also achieve the same effects as those described in (1) to (2), and can support the joint plate in a more stable state and allow the joint plate to slide more smoothly during an earthquake.
(4) The invention described in claim 5 also has the same effects as those described in (1) to (2), and since the joint plate is attracted to the joint plate support member by magnetic force, it is possible to prevent the joint plate from wobbling.

1 to 7 are explanatory diagrams showing a first embodiment of the present invention.
8 to 11 are explanatory diagrams showing a second embodiment of the present invention.
FIG. 2 is a plan view of the floor joint device of the first embodiment (normal state). FIG. 2 is a cross-sectional view taken along line 2-2 of FIG. FIG. 2 is a plan view of the joint plate support mechanism of the first embodiment. FIG. FIG. FIG. 10 is an explanatory diagram of the operation of the floor joint device when the clearance portion is narrowed due to an earthquake. FIG. 10 is an explanatory diagram of the operation of the floor joint device when the clearance area has widened due to an earthquake. FIG. 4 is a plan view of a floor joint device according to a second embodiment. 9 is a cross-sectional view taken along line 9-9 in FIG. 8 . FIG. 10 is a plan view of the joint plate support mechanism of the second embodiment. FIG.

The present invention will be described in detail below using the embodiments shown in the drawings.

In the first embodiment of the present invention shown in Figures 1 to 7, reference numeral 1 denotes a floor joint device installed between one frame 3 and the other frame 4, which are provided with a clearance portion 2 between them.

Note that the front-to-rear direction refers to the up-and-down direction (extension direction of the guide section) in Figure 1 (plan view), the left-to-right direction refers to the left-to-right direction in Figure 1 (direction perpendicular to the front-to-rear direction), and the up-and-down direction refers to the up-and-down direction in Figure 2 (thickness direction of the joint plate).

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

As shown in Figures 1 and 2, the floor joint device 1 of this embodiment is composed of a first joint plate support portion 5 provided on one of the frames 3, a second joint plate support portion 6 provided on the other frame 4, one or more joint plates 7 attached with one end supported by the first joint plate support portion 5 and the other end supported by the second joint plate support portion 6, and sealing the clearance portion 2, and a joint plate support mechanism 8 supporting the bottom of the joint plate 7.

One of the frames 3 is provided with a first joint plate support portion 5. In this embodiment, as shown in FIG. 2, this first joint plate support portion 5 is formed by fastening a metal member, such as an approximately angle-shaped or crank-shaped member, to the wall surface of the one frame 3 on the clearance portion 2 side with bolts or the like, forming the first joint plate support portion 5. One end of the joint plate 7 is attached with a fixture 20, such as a bolt or pin. In this embodiment, this first joint plate support portion 5 is approximately flush with the floor surface of the one frame 3. However, it may also be formed so that the floor surface of the one frame 3 and the upper surface of the joint plate 7 are approximately flush with each other when the joint plate 7 is installed. The floor surface of the one frame 3 on the clearance portion 2 side may also serve as the first joint plate support portion 5, or a recessed portion formed in the floor surface of the one frame 3 on the clearance portion 2 side, extending in the fore-and-aft direction, may serve as the first joint plate support portion 5. In this embodiment, one end of the joint plate 7 is fixed to this first joint plate support part 5, and one end of the joint plate 7 is supported by approximately 50 mm from the floor surface of one of the base structures 3.

A second joint plate support portion 6 is formed on the other frame 4. In this embodiment, this second joint plate support portion 6 also serves as the floor surface of the other frame 4 (it is formed flat with the floor surface), but it may also be formed in a recessed shape, and a cover plate may be provided above this second joint plate support portion 6 so that it is flat with the floor surface of the other frame 4.

The joint plate 7 is a metal plate, preferably a magnetic material that can be attracted to a magnet. In this embodiment, a steel metal plate is used as the joint plate 7.

One end of this joint plate 7 is fixed to the first joint plate support part 5 with a fixture 20 such as a bolt. If a metal member, such as an angle-shaped or crank-shaped member, is fixed with a bolt or the like to form the first joint plate support part 5, one end of the joint plate 7 may be fixed to the first joint plate support part 5 by welding or the like. While the joint plate 7 is fixedly attached with a bolt or the like in this embodiment, it may also be attached so that the other end of the joint plate 7 can rotate upward, for example by engaging a pin or the like.

The joint plate 7 may be singular or plural, and there is no limit to the number. It is also possible to use a shallow dish-shaped joint plate filled with a filler material. It is also desirable to form inclined surfaces on the left and right ends of the joint plate 7 to eliminate any difference in level with the floor surfaces of the main bodies 3 and 4.

The joint plate support mechanism 8 of the present invention, which supports this joint plate 7, is composed of one rail-shaped guide portion 9 attached to the wall surface 3a of one of the base members 3 on the clearance portion 2 side; another rail-shaped guide portion 10 attached to the wall surface 4a of the other base member 4 on the clearance portion 2 side so as to face the one guide portion 9; multiple movable support members 11, one end of which is supported by the one guide portion 9 so as to be slidable in the front-rear direction, and the other end of which is supported by the other guide portion 10 so as to be slidable in the front-rear direction; and one or more joint plate support members 12 extending in the front-rear direction so as to span approximately the center of the multiple movable support members 11 and supporting the bottom of the joint plate 7.

In this embodiment, the first and second guide sections 9, 10 are rail-like members with a roughly upward U-shape, and are attached to the wall surfaces 3a, 4a of the guide bodies 3, 4 on the clearance section 2 side so as to extend in the front-to-rear direction.

The movable support member 11 is a rod- or bar-shaped member, and both ends of the movable support member 11 are supported by the guide sections 9 and 10 via slide support members 13 so that they can move forward and backward. The multiple movable support members 11 are arranged so that they are parallel and diagonal (like a sash) when viewed from above. The movable support members 11 are formed to a length that allows them to remain diagonal even when the clearance section 2 is widened.

This movable support member 11 may be supported by the guide portions 9 and 10 simply by providing rollers or the like at both ends, but in this embodiment, it is supported by the one guide portion 9 and the other guide portion 10 via a slide support member 13.

As shown in Figure 4, this slide support member 13 is pivotally supported at both ends of the movable support member 11 and is composed of a slide body 14 that is inserted into the guide sections 9 and 10, and one or more sliding members 15 attached to the bottom of the slide body 14.

More specifically, cylindrical insertion pins 16 are provided as insertion sections at the bottom of both end portions of the movable support member 11, and the slider 14 is composed of an inserted section 18 having a pin insertion hole 17 into which the insertion pin 16 is inserted, and a slider main body 19 formed below the inserted section 18 and positioned inside the guide sections 9 and 10.

It is desirable that the slide body 14 be formed in a shape that allows it to be in approximate contact with the interior of the upwardly U-shaped guide sections 9, 10 and to move smoothly in the forward and backward directions. Therefore, slide members 15 may be provided not only on the bottom of the slide body main body 19 but also on the sides of the slide body main body 19, with the slide members 15 on these sides coming into contact with the inner walls of the guide sections 9, 10. Rollers, slide bearings, bearings, etc. may be used as the slide members 15.

In this embodiment, cylindrical insertion pins 16 are provided as insertion portions at the bottom of both end portions of the movable support member 11, and the slide body 14 has inserted portions 18 formed with pin insertion holes 17 into which the insertion pins 16 are inserted. However, for example, it is also possible to provide inserted portions 18 at the bottom of both end portions of the movable support member 11 and provide insertion pins 16 on the slide body 14, so that both end portions of the movable support member 11 are rotatably supported on the slide support member 13.

In this embodiment, only one joint plate support member 12 is provided, a rod- or bar-shaped member that spans multiple movable support members 11, and is pivotally attached to the approximate center of each of these movable support members 11 by a pivoting device 21 such as a bolt or pivot pin. In this embodiment, because only a single joint plate support member 12 is provided, this joint plate support member 12 is always positioned approximately in the center of the clearance portion. Specifically, because the joint plate support member 12 is pivotally attached to the approximate center of each movable support member 11 in the left-right direction, it is always positioned approximately in the center of the clearance portion.

The joint plate support member 12 is equipped with a magnet (not shown), which constantly attracts the bottom surface of the joint plate 7, which is made of a magnetic material. This prevents the joint plate 7 from rattling when people or vehicles pass by.

When an earthquake causes the structural frames 3 and 4 to sway left and right, narrowing the clearance 2, in the floor joint device 1 of the present invention, as shown in Figure 6, the joint plate 7 slides left and right on the second joint plate support portion to absorb the shaking caused by the earthquake. At this time, both ends of the movable support member 11 of the joint plate support mechanism 8 slide forward and backward along the guide portions 9 and 10, following changes in the clearance 2. Furthermore, even during an earthquake, the center of the movable support member 11 remains positioned approximately in the center of the clearance 2 in the left-right direction, so the joint plate support member 12 pivoted to the center of the movable support member 11 remains positioned approximately in the center of the clearance 2.

When an earthquake causes the frames 3 and 4 to sway left and right and the clearance area 2 to widen, the floor joint device 1 of the present invention absorbs the shaking caused by the earthquake by sliding the joint plate 7 left and right on the second joint plate support portion 6, as shown in Figure 7. When this happens, the clearance area 2 widens, but because the joint plate support member 12 of the joint plate support mechanism 8 is located approximately in the center of the clearance area 2 and can support the bottom of the joint plate 7, the joint plate 7 does not bend even when people or vehicles pass by, and the shaking caused by the earthquake can be absorbed.

[Different modes for carrying out the invention]
Next, different embodiments for carrying out the present invention will be described with reference to Figures 8 to 11. 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 will be designated by the same reference numerals, and redundant description will be omitted.

The second embodiment of the present invention, shown in Figures 8 to 11, differs from the first embodiment of the present invention mainly in that a joint plate support member 12A is provided with a rolling member 22 at the location that contacts the bottom of the joint plate 7, and multiple joint plate support members 12A are provided. This joint plate support mechanism 8A and floor joint device 1A achieve the same effects as the first embodiment of the present invention and prevent the joint plate 7 from bending even when the clearance portion 2 widens significantly during an earthquake. Furthermore, by providing the joint plate support member 12A with a rolling member 22, the joint plate 7 is stably supported and can slide smoothly.

In this embodiment, multiple joint plate support members 12A are provided, and one of these joint plate support members 12A is always located approximately in the center of the clearance portion 2. The number of joint plate support members 12A can be changed as appropriate depending on the size of the clearance portion 2.

In addition, in this embodiment, round bar-shaped members are provided on the upper surface of the joint plate support members 12A as rolling members 22, but any rolling members 22 that can stably support the joint plate 7 may be used. These rolling members 22 may be provided on all joint plate support members 12A, or only on some of the joint plate support members 12A.

This invention is used in industries that manufacture floor jointing devices, etc.

1, 1A: floor joint device, 2: clearance portion,
3: One body, 4: The other body,
5: First joint plate support portion; 6: Second joint plate support portion;
7: joint plate; 8, 8A: joint plate support mechanism;
9: one guide portion; 10: the other guide portion;
11: Movable support member; 12, 12A: Joint plate support member;
13: Slide support member; 14: Slide body;
15: Slider; 16: Insertion portion (e.g., insertion pin);
17: Pin insertion hole, 18: Inserted portion,
19: Slide body main body, 20: Mounting fixture,
21: Pivot support, 22: Rolling member.

Claims (6)

A joint plate support mechanism that supports a joint plate installed in a clearance portion formed between one base body and the other base body,
a plurality of movable support members, one end of which is supported by one of the movable support members so as to be slidable in the front-to-rear direction, and the other end of which is supported by the other of the movable support members so as to be slidable in the front-to-rear direction; and one or more joint plate support members that are arranged to span the plurality of movable support members and support the bottom of the joint plate, wherein one of the joint plate support members is attached to approximately the center of the plurality of movable support members in a pivoted state so as to be rotatable relative to the other by a pivot device, and is arranged so as to be always positioned approximately in the center of the clearance portion , and a rolling member is further provided at the portion of the joint plate support member that comes into contact with the bottom of the joint plate . The joint plate support mechanism described in claim 1, characterized in that the movable support member is supported by the one guide portion and the other guide portion via a slide support member, and the slide support member is composed of a slide body pivotally supported at each end of the movable support member and a sliding member provided at the bottom of the slide body. A floor joint device for closing a clearance between one frame and another frame, comprising: a first joint plate support portion provided on the one frame; a second joint plate support portion provided on the other frame; one or more joint plates attached with one end supported by the first joint plate support portion and the other end supported by the second joint plate support portion; and a joint plate support mechanism for supporting the bottom of the joint plate.
The joint plate support mechanism is composed of one guide portion provided on the clearance side of one of the supporting bodies, the other guide portion provided on the other supporting body so as to face the one guide portion, a plurality of movable support members each having one end supported on the one guide portion so as to be slidable in the front-to-rear direction and the other end supported on the other guide portion so as to be slidable in the front-to-rear direction, and one or more joint plate support members that are arranged to span the plurality of movable support members and support the bottom of the joint plate, and one of the joint plate support members is attached to approximately the center of the plurality of movable support members in a pivoted state so as to be able to rotate relatively by a pivot device, and is arranged so as to be always positioned approximately in the center of the clearance portion. The floor joint device described in claim 3, characterized in that the movable support member is supported by the one guide portion and the other guide portion via a slide support member, and the slide support member is composed of a slide body pivotally supported at both ends of the movable support member, and a sliding material provided at the bottom of the slide body. 5. The floor joint device according to claim 3 , wherein the joint plate is made of a magnetic material and is attracted to a magnet provided on the joint plate support member. 5. The floor joint device according to claim 3, wherein the joint plate support member is further provided with a rolling member at a portion thereof that comes into contact with the bottom of the joint plate.