Floor joint device

The floor joint device efficiently directs rainwater to drainage gutters using a joint plate mounting fixture with guide members and drainage gutters, addressing the inefficiency of conventional designs and preventing water accumulation.

JP2025122716AInactive Publication Date: 2025-08-22DOOEI GAISO KK
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Patent Information

Application Number
JP2024018311
Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
Filing Date
2024-02-09
Publication Date
2025-08-22
Estimated Expiration
Not applicable · inactive patent

AI Technical Summary

Technical Problem

Conventional floor joint devices fail to efficiently drain rainwater that flows onto the building frame side, risking water ingress into the joint.

Method used

A floor joint device equipped with a joint plate mounting fixture, including a first and second joint plate support portion, a plurality of joint plates, and a pair of drainage gutters, featuring a guide member and locking piles to direct rainwater to drainage gutters, with a crank-shaped recess and gutter member design to enhance drainage efficiency.

Benefits of technology

Effectively drains rainwater from the building frame side, preventing it from accumulating below the joint and ensuring reliable drainage through the use of drainage gutters and guide members.

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Abstract

To provide a floor joint device capable of efficiently draining rainwater flowing toward the building frame.SOLUTION: A floor joint device comprises a first joint plate support part provided on one of the frames and having a joint plate mounting fixture, a second joint plate support part provided on the other frame, a plurality of joint plates suspended adjacent to the first and second joint plate support parts, and a pair of drainage gutters fixed to the joint wall surfaces of the one frame and the other frame, respectively. The joint plate mounting fixture is composed of a base plate, a guide member that guides rainwater flowing toward the one frame into the drainage gutters, and locking piles inserted into each pile case of the joint plates.SELECTED DRAWING: Figure 1
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Description

[Technical Field]

[0001] The present invention relates to a floor joint device that closes joints between building frames that are provided with joints in between. [Background technology]

[0002] Conventionally, a floor joint device that closes a joint between floor surfaces and does not allow rainwater to fall into the joint has been described as "a floor joint device that closes a joint between one and the other of two frames, comprising: a first joint plate support portion provided on the one frame; a second joint plate support portion provided on the other frame; a rainwater drain joint plate that is supported at one end by the first joint plate support portion and at the other end by the second joint plate support portion, and that has a rainwater drain portion on at least one side in the front-to-rear direction; A floor joint device is known which is composed of a rainwater receiving joint plate, one end of which is supported by the first joint plate support portion and the other end of which is supported by the second joint plate support portion, and a rail-shaped rainwater receiving member which is installed opposite the rainwater discharge portion, and the rainwater discharge portion is composed of a recess formed so that the rail-shaped rainwater receiving member can fit in, and a rainwater drip portion formed above the recess and protruding downward so that rainwater can fall onto the rainwater receiving member (Patent Document 1).

[0003] However, with such a floor joint device, rainwater that flows onto the floor frame side cannot be efficiently drained, and there is a risk that the rainwater will flow into the lower part of the joint. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Publication No. 2019-7317 Summary of the Invention [Problem to be solved by the invention]

[0005] SUMMARY OF THE INVENTION In view of the above-mentioned drawbacks of the conventional art, an object of the present invention is to provide a floor joint device that can efficiently drain rainwater that has flowed onto the building frame side.

[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-mentioned object, the floor joint device of the present invention is a floor joint device that is equipped with a joint plate mounting fixture, and is equipped with a first joint plate support portion provided on one of the frames, a second joint plate support portion provided on the other frame, a plurality of joint plates that are spanned adjacent to the first and second joint plate support portions, and a pair of drainage gutters fixed to the side wall surfaces of each joint portion of the one frame and the other frame, respectively, and is characterized in that the joint plate mounting fixture is composed of a base plate, a guide member that guides rainwater that has flowed toward the one frame side to the drainage gutters, and locking piles that are inserted into each pile case of the rainwater drainage joint plate and the rainwater receiving joint plate.

[0009] The floor joint device according to claim 2 is a floor joint device that includes a joint plate attachment tool, a first joint plate support part provided on one of the frames, a second joint plate support part provided on the other frame, a plurality of rainwater drainage joint plates and rainwater receiving joint plates that are spanned adjacent to the first and second joint plate support parts, and a pair of drainage gutters that are fixed to the side wall surfaces of each joint part of the one frame and the other frame, respectively, and the joint plate attachment tool includes a base plate and a guide that guides rainwater that has flowed toward the one frame to the drainage gutters. and a locking pile inserted into each pile case of the rainwater discharge joint plate and the rainwater collecting joint plate, wherein the rainwater discharge joint plate has a roughly crank-shaped recess on the side that roughly abuts the rainwater collecting joint plate, and the rainwater collecting joint plate has a gutter member on the side that roughly abuts the rainwater discharge joint plate that can receive rainwater and direct it to the first joint plate support part or the second joint plate support part, and is characterized in that it can receive water flowing from the widthwise ends of the rainwater discharge joint plate and the rainwater collecting joint plate.

[0010] The guide member of the floor joint device described in claim 3 of the present invention has a vertical portion that covers the vertical wall surface of the first joint plate support portion, a horizontal portion that covers the horizontal surface of the first joint plate support portion or part or all of the base plate, a through hole through which the locking pile passes, and a guide portion that guides rainwater to one of the drainage gutters, and is characterized in that the guide portion is formed in the shape of an approximately obtuse angle or an approximately obtuse crank when viewed in cross section. [Effects of the Invention]

[0011] As is clear from the above description, the present invention provides the following effects. (1) In the inventions described in claims 1 and 2, a pair of drainage gutters are provided, respectively, fixed to the joint side wall surfaces of one skeleton and the other skeleton, and preferably the joint plate mounting fixture provided on the first joint plate support portion is provided with a base plate and a pair of guide members that guide rainwater that has flowed onto the one skeleton side to the drainage gutters, so that rainwater that has flowed into both skeletons can be reliably drained from the drainage gutters. In addition, since the pair of drainage gutters and the guide members provided on one skeleton side are provided, rainwater can be efficiently drained and rainwater can be prevented from falling below the joint between the skeletons. (2) In the invention described in claim 3, the same effect as in (1) can be obtained, and rainwater flowing into one of the frames can be more efficiently guided to one of the drainage gutters. [Brief explanation of the drawings]

[0012] 1 to 11 are explanatory diagrams showing a first embodiment of the present invention. [Figure 1] 1 is a plan view (in normal operation) of a floor joint device showing a first embodiment. [Figure 2] Cross-sectional view taken along line 2-2 in Figure 1. [Figure 3] Cross-sectional view taken along line 3-3 in Figure 1. [Figure 4] An explanatory diagram of a joint plate mounting fixture. [Figure 5] Cross-sectional view taken along line 5-5 in Figure 4. [Figure 6] An explanatory diagram of a rainwater drainage joint plate. [Figure 7] Cross-sectional view taken along line 7-7 in Figure 6. [Figure 8] An explanatory diagram of a rainwater collection joint plate. [Figure 9] Cross-sectional view taken along line 9-9 in Figure 8. [Figure 10] An explanatory diagram of operation when the joint has narrowed due to an earthquake. [Figure 11] An explanatory diagram of operation when the joint has widened due to an earthquake. DETAILED DESCRIPTION OF THE INVENTION

[0013] 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.

[0014] In the first embodiment of the present invention shown in Figures 1 to 11, 1 is a floor joint device installed between one body 3 and the other body 4 provided with a joint portion 2 therebetween.

[0015] The left-right direction refers to the left-right direction in Figure 1 (plan view) (the longitudinal direction of the rainwater drainage joint plate 8), the front-to-back direction refers to the up-and-down direction in Figure 1 (the width direction of the rainwater drainage joint plate 8, a direction perpendicular to the longitudinal direction), and the up-and-down direction refers to the up-and-down direction in Figure 2 (the thickness direction of the rainwater drainage joint plate 8).

[0016] In addition, in this invention, the term "structure" refers to a structure such as a building, road, slab, elevator shaft, etc., on which a joint plate can be installed, 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.

[0017] The floor joint device 1 of this embodiment is characterized by "having a pair of drainage gutters fixed to the side walls of the joint portion of one frame and the other frame, respectively, and the joint plate fixture provided on one frame side has a base plate and a guide member that guides rainwater that has flowed onto the one frame side into the drainage gutters." The specific configuration of the implementation level is as shown in Figures 1 to 3, for example.

[0018] As shown in Figures 1 to 3, the joint plate is composed of a first joint plate support portion 5 provided on one of the frames 3, a joint plate mounting fixture 6 provided on the first joint plate support portion 5, a second joint plate support portion 7 provided on the other frame 4, a plurality of rainwater drainage joint plates 8 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 7 to close the joint portion 2, a plurality of rainwater receiving joint plates 9 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 7 to close the joint portion 2, one drainage gutter 10 fixed to the joint portion side wall surface 3a of the one frame 3, and the other drainage gutter 11 fixed to the joint portion side wall surface 4a of the other frame 4.

[0019] A first joint plate support portion 5 is formed on one of the main bodies 3, and in this embodiment, this first joint plate support portion 5 is formed in a recessed shape extending in the front-to-back direction on the floor surface on the joint portion 2 side of one of the main bodies 3, as shown in Figure 2, for example. This first joint plate support portion 5 is provided with a joint plate mounting fixture 6 equipped with a locking pile 13 that is inserted into a pile case 12 provided at both front and rear ends of one end of the joint plates 8 and 9.

[0020] As shown in Figures 4 and 5, this joint plate mounting fixture 6 is composed of a base plate 14 fixed to the first joint plate support portion, a guide member 15 attached to the base plate 14 and guiding rainwater that has flowed toward one of the bodies 3 to one of the drainage gutters 10, and a locking pile 13 fixed to the upper surface of the base plate 14 and inserted into the pile case 12 of the rainwater discharge joint plate 8 and the rainwater receiving joint plate 9.

[0021] In this embodiment, the base plate 14 is a plate-shaped member, which is formed into an approximately rectangular shape when viewed from above, and one locking pile 13 is fixed to one base plate 14, but it may also be formed into a shape that covers the entire upper surface of the first joint plate support portion 5, and multiple locking piles 13 may be fixed to one base plate 14.

[0022] The guide member 15 is attached to the base plate 14 or one of the frames 3 and has a vertical portion 15a that covers the vertical wall surface of the first joint plate support portion 5, a horizontal portion 15b that covers the horizontal surface of the first joint plate support portion 5 or part or all of the base plate, a through hole 15c through which the locking peg passes, and a guide portion 15d that guides rainwater to one of the drainage gutters, the guide portion 15d being formed in a generally angled or crank-like shape in cross section. In this embodiment, the guide portion 15d is formed in a generally crank-like shape, and the angle of the crank-shaped or angled bent corner is preferably an obtuse angle. In this embodiment, the guide portion 15d is bent in a generally crank-like shape.

[0023] In this embodiment, the guide member 15 is formed to cover the entire upper surface of the first joint plate support portion and the base plate. However, it may not have the vertical portion 15a or the horizontal portion 15b. In such a case, the guide member 15 may be provided on the base plate 14 so as to be substantially flush with the upper surface of the base plate 14 or so as to be continuous with the upper surface of the base plate 14 without any step, so as not to obstruct the flow of rainwater. Furthermore, part or all of the upper surface of the base plate 14 may be sloped downward toward the joint portion to allow rainwater to flow into the guide member 15. In this embodiment, the base plate 14 is preferably provided so that the upper surface of the base plate 14 and the horizontal plane of the first joint plate support portion 5 are substantially flat. However, a notch may be formed in the bottom of the pile case 12 of the joint plates 8 and 9 to allow the base plate 14 to fit into it. When such a notch is provided, a through-hole 15c may be formed in the vertical portion 15a of the guide member 15, so that the bottom of the base plate 14 rests on the horizontal portion 15b of the guide member 15. Furthermore, a plate-shaped spacer or the like may be provided on the first joint plate support portion 5 to make the space between the base plates 14 flat. With this configuration, the entire one end side of the joint plates 8, 9 is supported directly or indirectly by the first joint plate support portion 5, allowing them to be installed in a stable state.

[0024] A second joint plate support part 7 is formed on the other body 4, and this second joint plate support part 7 is formed to a length that allows the joint plates 8 and 9 to slide left and right during an earthquake. In addition, at the end of the second joint plate support part 7 opposite the joint part 2, a climbing inclined surface 16 is formed on which the joint plates 8 and 9 can climb up if the joint part 2 narrows due to an earthquake.

[0025] This second joint plate support portion 7 is slightly inclined downward toward the joint portion, so that rainwater that flows from the rainwater-receiving joint plate 9 into the second joint plate support portion 7 flows efficiently into the other drainage gutter 11. Note that this second joint plate support portion 7 may be provided with a reinforcing member in the shape of a slat or a plate. By providing such a reinforcing member, it is possible to prevent damage to the second joint plate support portion even when the joint plates 8, 9 slide.

[0026] 1 and 2, the rainwater drainage joint plates 8 and the rainwater receiving joint plates 9 are normally arranged so that one end is supported by a locking peg 13 of a joint plate mounting fixture 6 attached to the first joint plate support part 5 inserted into a peg case (e.g., rectangular in plan view) 12 formed at one end, and the other end is supported directly or indirectly (via a support plate, etc.) by the second joint plate support part 7 in the attached state, with multiple rainwater drainage joint plates 8 and rainwater receiving joint plates 9 alternately positioned in the front-to-rear direction of the joint part 2, preferably with almost no gaps between them. In this embodiment, the plates are arranged with a gap of about 2 mm between them, and "almost no gap" refers not only to a state in which adjacent rainwater drainage joint plates 8 and rainwater receiving joint plates 9 are arranged in abutting contact with each other, but also to a state in which they are arranged with a small gap of a few millimeters between them.

[0027] As shown in Figures 6 and 7, this rainwater drainage joint plate 8 is composed of a metal rainwater drainage joint plate main body 17 that is approximately rectangular in plan view, the pile case 12 provided on both sides of one longitudinal end of the rainwater drainage joint plate main body 17, recesses 18 that are approximately crank-shaped in cross section formed on each of the widthwise side surfaces 17a of the rainwater drainage joint plate main body 17 and that can engage with a lifting tool (not shown) for lifting the joint plate main body 17, a filling member 19 such as mortar or concrete filled inside the rainwater drainage joint plate main body 17, a decorative panel 20 such as marble tiles or bricks attached to the upper surface of the filling member 19, and a cover plate 22 attached to the other end side of the rainwater drainage joint plate main body 17 via a hinge member 21.

[0028] The recess 18 formed on the side of this rainwater drainage joint plate 8 is formed roughly crank-shaped in cross section, with the lower side of the rainwater drainage joint plate main body 17 having smaller dimensions (the dimensions of the bottom surface of the rainwater drainage joint plate main body 17 are smaller than the dimensions of the top surface), and is formed on the side facing (roughly abutting) the adjacent rainwater receiving joint plate 9.

[0029] Therefore, when a rainwater drainage joint plate 8 is provided at the front-to-rear end of the joint portion 2, it is sufficient to form a recess 18 on only one side surface, and it is not necessary to form a recess 18 on the side surface that does not face (does not substantially abut) another rainwater receiving joint plate 9.

[0030] This recess 18 is formed on the entire widthwise side surface 17a of the rainwater drainage joint plate body 17 so as to extend in the left-right direction, and in this embodiment, the shape of the recess 18 is formed in a crank shape that is roughly N-shaped or roughly inverted N-shaped in cross section so that rainwater can reliably fall into the gutter member. By making the recess 18 shaped in this way, rainwater collects in the convex portion on the downward side, allowing the rainwater to reliably fall downward from that position. This convex portion is located on a roughly vertical line with the front-to-rear side surface of the rainwater drainage joint plate 8, allowing rainwater to reliably fall into the gutter member 23 provided on the rainwater receiving joint plate 9.

[0031] As shown in Figures 8 and 9, the rainwater collecting joint plate 9 is composed of a metal rainwater collecting joint plate body 24 that is approximately rectangular in plan view, the pile case 12 provided on both sides of one longitudinal end of the rainwater collecting joint plate body 24, a gutter member 23 provided on the widthwise side 24a of the rainwater collecting joint plate body 24, a filling member 19 such as mortar or concrete filled inside the rainwater collecting joint plate body 24, a decorative panel 20 such as marble tile or brick attached to the top surface of the filling member 19, and a cover plate 22 attached to the other end side of the rainwater collecting joint plate body 24 via a hinge member 21.

[0032] This gutter member 23 is formed on the side surface that faces (approximately abuts) the adjacent rainwater discharge joint plate 8. Therefore, when a rainwater receiving joint plate 9 is provided at the front-to-rear end of the joint portion 2, it is sufficient to provide the gutter member 23 on only one side surface, and it is not necessary to provide the gutter member 23 on the side surface that does not face (approximately abuts) another rainwater discharge joint plate 8.

[0033] This gutter member 23 has a cross section that is roughly an upward U-shape (roughly J-shape) with one side (one side) 23a being longer, and is formed to a length that can cover at least the area located at the top of the joint portion 2 when the rainwater collecting joint plate 9 is installed in the joint portion 2.

[0034] In this embodiment, this one side surface 23a has approximately the same height as the rainwater receiving joint plate 9, and this one side surface 23a constitutes a part of the rainwater receiving joint plate main body 24. The height of the side portion of the rainwater receiving joint plate main body 24 is lower than the height of the rainwater receiving joint plate 9, and by fixing one side surface 23a of the gutter member 23 in close contact with this side portion, one side surface 23a of the gutter member 23 constitutes the side surface in the front-to-rear direction of the rainwater receiving joint plate main body 24. For example, if the height of the rainwater receiving joint plate 9 is 100 mm, the height of the side portion in the front-to-rear direction of the rainwater receiving joint plate main body 24 is formed to be approximately 65 mm, the height of one side surface 23a of the gutter member 23 is 100 mm, the length of the horizontal portion 23b is 30 mm, and the height of the other side surface 23c is approximately 50 mm.

[0035] In this embodiment, the gutter member 23 is provided over the entire length from one end side to the other end side of the rainwater-receiving joint plate body 24, and is provided at a downward slope so that rainwater dripping from between the joint plate bodies 17, 24 flows into the second joint plate support part 7. The inclined gutter member 23 is attached so that its lower end is higher than or approximately flush with the bottom of the rainwater-receiving joint plate 9. The gutter member 23 may also be provided at a downward slope so that rainwater flows into the first joint plate support part 5. In such a case, the guide member 15 of the joint plate mounting fixture 6 guides the rainwater to one of the drainage gutters 10.

[0036] In this embodiment, rainwater received by this gutter member 23 flows down the gutter member 23 to the second joint plate support part 7 of the other body 4, and then flows down from this second joint plate support part 7 into the other drainage gutter 11 provided on the wall surface 4a of the other body 4 to be drained. For this reason, it is advisable to form a groove-like inclined part in the second joint plate support part 7 so that rainwater flows into the other drainage gutter 11, or to make the second joint plate support part 7 itself slightly inclined (not shown).

[0037] In this embodiment, the joint plate bodies 17, 24 have flat upper surfaces, but joint plate bodies 17, 24 that are inclined in the left-right direction (longitudinal direction) or in the front-to-back direction (direction perpendicular to the longitudinal direction) may also be used. Furthermore, reinforcing materials (not shown), such as multiple ribs or lattice-shaped ribs, extending in the longitudinal direction of the joint plate bodies 17, 24 may be fixedly provided inside the shallow dish-shaped joint plate bodies 17, 24. When such reinforcing materials are provided, the lower end of the reinforcing materials is fixed to the bottom of the interior of the joint plate bodies 17, 24 by welding or the like, and then the filler 19 is filled in.

[0038] In this embodiment, shallow dish-shaped joint plate bodies 17, 24 are used, and a filling material 19 is filled inside these joint plate bodies 17, 24, and a decorative panel 20 is provided, but joint plates 8, 9 may also be used that use plate-shaped (solid) joint plate bodies 17, 24, or joint plates 8, 9 that do not have a decorative panel 20 or cover plate 22, etc.

[0039] When an earthquake causes the main bodies 3 and 4 to shake left and right and the joint section 2 to narrow, as shown in Figure 10, the rainwater drainage joint plate 8 and the rainwater receiving joint plate 9 climb up the climbing slope 16 of the second joint plate support section 7 to absorb the shaking caused by the earthquake. When an earthquake causes the main bodies 3 and 4 to shake left and right and the joint section 2 to widen, the rainwater drainage joint plate 8 and the rainwater receiving joint plate 9 slide left and right, as shown in Figure 11, to absorb the shaking caused by the earthquake.

[0040] In the embodiment of the present invention, a pin-shaped member is inserted into the pile case as a locking pile, but the locking pile is not limited to such a pin-shaped member. For example, a bolt may be used as a locking pile, fixed to the pile case with a nut, and a joint plate may be attached, or other known locking means may be used as a locking pile.

[0041] Furthermore, although the drawings and the like particularly show the pile case exposed on the upper surface of the joint plate, the upper part of the pile case may not be exposed on the upper surface of the joint plate, and almost the entire upper surface of the joint plate body may be covered with a decorative panel or the like.

[0042] Furthermore, in the embodiment of the present invention, rainwater drainage joint plates with recesses and rainwater receiving joint plates with gutter members are alternately arranged in the front-to-back direction, but multiple joint plates without recesses or gutter members may also be used. In such cases, it is recommended to fill the spaces between the joint plates with a sealant or the like to prevent rainwater from falling downward through the gaps between adjacent joint plates. [Industrial Applicability]

[0043] The present invention finds application in the floor jointing equipment manufacturing industry. [Explanation of symbols]

[0044] 1: Floor joint device, 2: Joint section, 3: One body, 4: The other body, 5: First joint plate support portion; 6: Joint plate mounting fixture; 7: second joint plate support portion; 8: rainwater drainage joint plate; 9: Rainwater receiving joint plate, 10: One drainage gutter, 11: the other drainage gutter; 12: pile case; 13: retaining pile; 14: base plate; 15: guide member; 16: riding slope; 17: Rainwater drainage joint plate body, 18: Recess, 19: Filler member, 20: Decorative board, 21: hinge member; 22: cover plate; 23: Gutter component, 24: Rainwater receiving joint plate body.

Claims

1. A floor joint device comprising a first joint plate support portion provided on one of the frames and equipped with a joint plate mounting fixture, a second joint plate support portion provided on the other frame, a plurality of joint plates spanned adjacent to the first and second joint plate support portions, and a pair of drainage gutters fixed to the side wall surfaces of each joint portion of the one frame and the other frame, respectively, wherein the joint plate mounting fixture is composed of a base plate, a guide member that guides rainwater flowing toward the one frame into the drainage gutters, and locking piles that are inserted into each pile case of the joint plates.

2. A floor joint device comprising a first joint plate support part provided on one of the frames and equipped with a joint plate mounting fixture, a second joint plate support part provided on the other frame, a plurality of rainwater drain joint plates and rainwater receiving joint plates hung adjacent to the first and second joint plate support parts, and a pair of drainage gutters fixed to the side wall surfaces of each joint part of the one frame and the other frame, respectively, wherein the joint plate mounting fixture comprises a base plate, a guide member for guiding rainwater flowing toward the one frame side to the drainage gutters, and a pair of drainage gutters for guiding rainwater flowing toward the one frame side to the drainage gutters. A floor joint device that is composed of a discharge joint plate and locking piles that are inserted into each pile case of the rainwater collecting joint plate, wherein the rainwater discharge joint plate has a roughly crank-shaped recess on the side that roughly abuts the rainwater collecting joint plate, and the rainwater collecting joint plate has a gutter member on the side that roughly abuts the rainwater discharge joint plate that can receive rainwater and direct it to the first joint plate support portion or the second joint plate support portion, and is capable of receiving water that has flowed from the widthwise ends of the rainwater discharge joint plate and the rainwater collecting joint plate.

3. The guide member has a vertical portion that covers the vertical wall surface of the first joint plate support portion, a horizontal portion that covers the horizontal surface of the first joint plate support portion or part or all of the base plate, a through hole through which the locking pile passes, and a guide portion that guides rainwater to one of the drainage gutters, and the guide portion is formed in an approximately angled or cranked shape when viewed in cross section.A floor joint device as described in either claim 1 or claim 2, characterized in that

Citation Information

Patent Citations

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