Joint plate support mechanism and floor joint device

Abstract

To provide a joint plate support mechanism and a joint device for a floor, which can prevent a joint plate from being deflected downward, and which can absorb shaking caused by an earthquake.SOLUTION: The joint plate support mechanism includes one guide part provided on the clearance part side of one building frame, the other guide part provided on the other building frame so as to face the one guide part, and one end part supported by the one guide part so as to be slidable in the longitudinal direction. A plurality of movable supporting members, in which the other end sections are supported slidably in the longitudinal direction to the other guide section, and a joint-plate supporting member, which is installed so as to be stretched to a plurality of the movable supporting members and supports the bottom section of the joint plate, are constituted, and the joint-plate supporting member is installed so as to be positioned always at the approximately central section of the clearance section.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a joint plate support mechanism and a floor joint device that support a joint plate that closes a clearance between building frames. [Background technology]

[0002] Conventionally, examples of floor joint devices that seal clearances between floor surfaces and joint plates used in such floor joint devices include "a joint plate including a shallow dish-shaped joint plate body and a filling material filled into this joint plate body" and "a floor joint device that covers the joint between left and right floor frames provided through a joint portion with a joint cover made of a plurality of steel or stainless steel plate joint cover bodies connected by welding, wherein the connecting portion of the joint cover body is formed into a pulse wave-shaped or dovetail wave-shaped fitting portion, and the corners of the fitting portion are connected by spot welding to prevent distortion" (Patent Document 1).

[0003] However, while such floor joint devices can seal clearance areas 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 through and apply load to the joint cover, and there is a risk of significant bending, particularly when the clearance area becomes wider due to an earthquake. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Patent No. 5044605 Summary of the Invention [Problem to be solved by the invention]

[0005] In view of the above-mentioned conventional drawbacks, the present invention aims to provide a joint plate support mechanism and a floor joint device that can prevent the joint plate from bending downward and absorb shaking caused by earthquakes.

[0006] The above and other objects and novel features of the present invention will become more fully apparent from the following description read in conjunction with the accompanying drawings.

[0007] However, the drawings are for illustrative purposes only and do not limit the technical scope of the present invention. [Means for solving the problem]

[0008] 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 system is composed of one guide section provided on the clearance side of one of the supporting bodies, the other guide section provided on the other supporting body so as to face the one guide section, a plurality of movable support members each having one end supported on the one guide section so as to be slidable in the front-rear direction and the other end supported on the other guide section so as to be slidable in the front-rear direction, and one or more joint plate support members that are provided 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 The plurality of movable support members are respectively attached to substantially central portions thereof by pivotal supports in a relatively rotatable state, It is provided so as to be always located at approximately the center of the clearance portion. A rolling member is further provided at a portion of the joint plate support member that contacts the bottom of the joint plate. It is characterized by:

[0009] 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 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.

[0010]

[0011] The floor joint device of the present invention described in claim 3 is a floor joint device for closing a clearance between one skeleton and another skeleton, and is composed of a first joint plate support part provided on the one skeleton, a second joint plate support part provided on the other skeleton, one or more joint plates attached with one end side supported by the first joint plate support part and the other end side supported by the second joint plate support part, and a joint plate support mechanism for supporting the bottom of the joint plate, The structure is composed of one guide section provided on the clearance side of one of the base members, the other guide section provided on the other base member so as to face the one guide section, a plurality of movable support members each having one end supported on the one guide section so as to be slidable in the front-rear direction and the other end supported on the other guide section so as to be slidable in the front-rear direction, and one or more joint plate support members that are provided 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 The plurality of movable support members are respectively attached to substantially central portions thereof by pivotal supports in a relatively rotatable state, A floor joint device that is always positioned approximately in the center of the clearance portion.

[0012] Claim 4 The movable support member of the floor joint device described in 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. Claim 5 The joint plate of the floor joint device described in the above is formed of a magnetic material and is attracted to a magnet provided on the joint plate support member. Claim 6 The floor joint device described in 1 is characterized in that a rolling member is further provided at a portion of the joint plate support member that comes into contact with the bottom of the joint plate. [Effects of the Invention]

[0013] As is clear from the above description, the present invention provides the following effects. (1) Claim 1 and Claim 3 In each of the inventions described above, the bottom of the joint plate can be supported at all times by the joint plate support member that is provided so as to be always positioned at approximately 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) Claim 2 and Claim 4 In each of the inventions described above, the same effect as in (1) above can be obtained, and the movable support member can be made to follow the rocking movement more smoothly during an earthquake. (3) Claim 3 and Claim 6 The inventions described above also have the same effects as those of (1) to (2), and can support the joint plate in a more stable state, allowing the joint plate to slide more smoothly during an earthquake. (4) Claim 5 The invention described above also has the same effects as those described in (1) and (2) above, 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, etc. [Brief explanation of the drawings]

[0014] 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. [Figure 1] 1 is a plan view of the floor joint device of the first embodiment (in normal operation). FIG. [Figure 2] Cross-sectional view taken along line 2-2 in Figure 1. [Figure 3] FIG. 2 is a plan view of the joint plate support mechanism of the first embodiment. [Figure 4] FIG. [Figure 5] FIG. [Figure 6] FIG. 10 is an explanatory diagram of the operation of the floor joint device when the clearance portion is narrowed due to an earthquake. [Figure 7] FIG. 10 is an explanatory diagram of the operation of the floor joint device when the clearance area has widened due to an earthquake. [Figure 8] FIG. 4 is a plan view of a floor joint device according to a second embodiment. [Figure 9] Cross-sectional view taken along line 9-9 in Figure 8. [Figure 10] FIG. 10 is a plan view of a joint plate support mechanism according to a second embodiment. [Figure 11] FIG. DETAILED DESCRIPTION OF THE INVENTION

[0015] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail below with reference to the accompanying drawings showing preferred embodiments of the present invention.

[0016] In the first embodiment of the present invention shown in Figures 1 to 7, 1 is a floor joint device installed between one body 3 and the other body 4 provided with a clearance portion 2 therebetween.

[0017] The front-to-back direction refers to the up-and-down direction (extension direction of the guide part) 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-back direction), and the up-and-down direction refers to the up-and-down direction in Figure 2 (thickness direction of the joint plate).

[0018] In addition, in this invention, the term "body" refers to a structure on which a joint plate can be installed, such as a building, road, slab, elevator shaft, etc., and the term "entrance" refers not only to an entrance with a door or a gate, but also to a passageway through which people, vehicles, etc. can pass.

[0019] 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 main bodies 3, a second joint plate support portion 6 provided on the other main body 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.

[0020] 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 angle or crank, to the wall surface of the frame 3 on the clearance 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 substantially flush with the floor surface of the frame 3. However, it may also be formed so that the floor surface of the frame 3 and the upper surface of the joint plate 7 are substantially flush with each other when the joint plate 7 is installed. The floor surface of the frame 3 on the clearance 2 side may serve as the first joint plate support portion 5, or a recessed portion formed in the floor surface of the frame 3 on the clearance 2 side, extending in the front-to-rear direction, may serve as the first joint plate support portion 5. In this embodiment, one end of the joint plate 7 is fixed to the first joint plate support portion 5, and furthermore, one end of the joint plate 7 is supported by about 50 mm from the floor surface of one of the supporting bodies 3.

[0021] A second joint plate support portion 6 is formed on the other main body 4, and in this embodiment, this second joint plate support portion 6 also serves as the floor surface of the other main body 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 main body 4.

[0022] The joint plate 7 is a metal plate, and is 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.

[0023] One end of this joint plate 7 is fixed to the first joint plate support part 5 by a fixture 20 such as a bolt. When a metal member such as an approximately angle-shaped or approximately crank-shaped member is fixed by 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. In this embodiment, the joint plate 7 is fixedly attached by a bolt or the like, but the other end of the joint plate 7 may also be attached so that it can rotate upward, for example by engaging a pin or the like.

[0024] There may be one or more joint plates 7, and there is no limit to the number. A shallow dish-shaped joint plate body filled with a filler may also be used as the joint plate 7. 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 supporting bodies 3 and 4.

[0025] 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 provided on the wall surface 3a on the clearance portion 2 side of one of the main bodies 3, the other rail-shaped guide portion 10 provided on the wall surface 4a on the clearance portion 2 side of the other main body 4 so as to face the one guide portion 9, a plurality of movable support members 11, one end of which is supported on the one guide portion 9 so as to be slidable in the front-to-back direction, and the other end of which is supported on the other guide portion 10 so as to be slidable in the front-to-back direction, and one or more joint plate support members 12 extending in the front-to-back direction so as to span approximately the center of the plurality of movable support members 11 and supporting the bottom of the joint plate 7.

[0026] In this embodiment, the one and other guide portions 9, 10 are rail-like members having an approximately upward U-shape, and are attached to the wall surfaces 3a, 4a of the guide bodies 3, 4 on the clearance portion 2 side so as to extend in the front-to-rear direction.

[0027] The movable support members 11 are rod- or bar-shaped members, and both ends thereof are supported by the guide sections 9 and 10 via slide support members 13 so as to be movable in the front-to-rear direction, and the multiple movable support members 11 are arranged so as to be parallel and diagonal (like a cross) in a plan view. The movable support members 11 are formed to a length that allows them to remain diagonal even when the clearance section 2 is widened.

[0028] 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 thereof, 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.

[0029] 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 that are provided at the bottom of the slide body 14.

[0030] More specifically, a cylindrical insertion pin 16 is provided as an insertion portion at the bottom of both end portions of the movable support member 11, and the slide body 14 is composed of an insertion portion 18 having a pin insertion hole 17 into which the insertion pin 16 is inserted, and a slide body main body 19 formed below the insertion portion 18 and positioned inside the guide portions 9 and 10.

[0031] Incidentally, 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 upward U-shaped guide sections 9, 10 and to move smoothly in the front-to-rear direction. For this reason, the slide members 15 may be provided not only on the bottom of the slide body main body 19 but also on the side surfaces of the slide body main body 19, so that the slide members 15 provided on the side surfaces come into contact with the inner walls of the guide sections 9, 10. As the slide members 15, rollers, slide bearings, bearings, etc. may be used.

[0032] In this embodiment, cylindrical insertion pins 16 are provided as insertion portions at the bottom of both end sides of the movable support member 11, and the slide body 14 has inserted portions 18 in which pin insertion holes 17 into which the insertion pins 16 are inserted are formed. However, for example, it is also possible to provide inserted portions 18 at the bottom of both end sides of the movable support member 11 and provide insertion pins 16 on the slide body 14, so that both end sides of the movable support member 11 are pivotally supported to the slide support member 13 in a manner that allows them to rotate.

[0033] In this embodiment, only one joint plate support member 12 is provided, which is 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 pivot device 21 such as a bolt or pivot pin. In this embodiment, because a single joint plate support member 12 is provided, this joint plate support member 12 is always located at the approximate 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 located at the approximate center of the clearance portion.

[0034] The joint plate support member 12 is provided 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.

[0035] When an earthquake causes the 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 back and forth along the guide portions 9 and 10, following the changes in the clearance 2. Note that 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 and right direction, so the joint plate support member 12 pivoted at the center of the movable support member 11 remains positioned approximately in the center of the clearance 2.

[0036] When an earthquake causes the frames 3 and 4 to sway left and right and the clearance section 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 section 6, as shown in Figure 7. At this time, the clearance section 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 section 2 and this joint plate support member 12 can support the bottom of the joint plate 7, the joint plate 7 does not bend even when people or vehicles pass by, and it is possible to absorb the shaking caused by the earthquake.

[0037] [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.

[0038] 8 to 11, the second embodiment of the present invention differs from the first embodiment in that a joint plate support member 12A is provided with a rolling member 22 at the portion 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 can prevent the joint plate 7 from bending even if the clearance portion 2 widens significantly during an earthquake. Furthermore, by providing the joint plate support member 12A with the rolling member 22, the joint plate 7 can be stably supported and can slide smoothly.

[0039] In this embodiment, a plurality of 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.

[0040] In addition, in this embodiment, a round bar-shaped member is provided on the upper surface of the joint plate support member 12A as the rolling member 22, but any rolling member 22 may be used as long as it can stably support the joint plate 7. The rolling member 22 may be provided on all of the joint plate support members 12A, or only on some of the joint plate support members 12A. [Industrial Applicability]

[0041] The present invention is useful in industries that manufacture floor jointing devices and the like. [Explanation of symbols]

[0042] 1, 1A: floor joint device, 2: clearance part, 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 part (e.g., insertion pin); 17: pin insertion hole; 18: insertion portion; 19: Slide body main body, 20: Mounting fixture, 21: pivoting member, 22: rolling member.

Claims

1. 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 mechanism 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 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 arranged so as to be always positioned approximately in the center of the clearance portion.

2. 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 rotatably supported at both ends of the movable support member, and a sliding material provided at the bottom of the slide body.

3. 3. A joint plate support mechanism according to claim 1, further comprising a rolling member provided at a portion of the joint plate support member that contacts the bottom of the joint plate.

4. 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 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 a floor joint device arranged so as to be always positioned approximately in the center of the clearance portion.

5. The floor joint device described in claim 4, 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.

6. 6. The floor joint device according to claim 4, wherein the joint plate is made of a magnetic material and is attracted to a magnet provided on the joint plate support member.

7. 6. The floor joint device according to claim 4, wherein a rolling member is further provided at a portion of the joint plate support member that comes into contact with the bottom of the joint plate.

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