Water stop devices and fittings for water stop devices

The water stop device addresses the inefficiency of existing installations by using a mounting system with a curved protrusion to enable single-operation installation of the water stop plate in both vertical and horizontal directions, significantly reducing installation time and effort.

JP7658567B2Active Publication Date: 2025-04-08CHUBU BIKA KIGYO
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Patent Information

Application Number
JP2021109985
Authority / Receiving Office
JP · JP
Patent Type
Patents
Current Assignee / Owner
Filing Date
2021-07-01
Publication Date
2025-04-08
Estimated Expiration
2041-07-01

AI Technical Summary

Technical Problem

Existing water stop devices require multiple operations and take significant time and effort to install, particularly due to the need for separate mechanisms to press the water stop plates vertically and horizontally.

Method used

A water stop device featuring a staircase with a water stop plate and a mounting device that includes a hook, an operation unit, a regulating hole, and a protrusion with a curved portion, allowing the water stop plate to be pressed in both vertical and horizontal directions with a single operation.

Benefits of technology

This configuration reduces the time and effort required for installation by allowing the water stop plate to be installed in multiple directions with a single operation, thereby enhancing the efficiency of the water stop device.

✦ Generated by Eureka AI based on patent content.

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Abstract

To press a water cutoff plate in multiple directions with less operation when installing the water cutoff plate.SOLUTION: A water cutoff device 1 includes: a mullion 4 installed in an entry E of a building; a water cutoff plate 3; and a fixture 2 that fixes the water cutoff plate 3 to the mullion. The fixture 2 includes: a hook 22 that is engaged with a slit 41 of the mullion 4; a bolt 24 that operates the water cutoff plate 3 in the vertical direction; a regulation hole 23 that regulates the moving direction of the water cutoff plate 3; and a protruding part 26 that is fixed on the water cutoff plate 3 and is loosely engaged with the regulation hole 23. The regulation hole 23 includes a curved part 23a that curves from the vertical direction to the horizontal direction and changes pressing force in the vertical direction to pressing force in the horizontal direction.SELECTED DRAWING: Figure 1
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Description

[Technical field]

[0001] The present invention relates to a water stop device that is installed at the entrances of buildings such as facilities, stores, subways, and underground shopping malls to prevent water from entering the buildings during typhoons, heavy rains, and the like. [Background technology]

[0002] Conventionally, there is known a water stop device invention that prevents water from entering a building by blocking the entrance of the building with a water stop and sealing the gap between the entrance and the water stop with a packing or the like. For example, Patent Document 1 proposes an invention of a water stop device in which a packing that abuts against the lower side and both left and right sides of the entrance of the building is provided on the water stop, a first pressing mechanism that presses the water stop toward the lower side of the entrance and a second pressing mechanism that presses the water stop toward both left and right sides of the entrance are provided, and the first pressing mechanism and the second pressing mechanism are used to press the packing against the entrance. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2020-193517 A Summary of the Invention [Problem to be solved by the invention]

[0004] However, according to the waterstop device of Patent Document 1, a first pressing mechanism and a second pressing mechanism are used to press the waterstop plate vertically downward and against both the left and right sides of the building entrance / exit, which requires multiple operations, resulting in the problem that installation of the waterstop device is time-consuming and labor-intensive.

[0005] SUMMARY OF THE PRESENT EMBODIMENT An object of the present invention is to provide a water stop device that can reduce the effort and time required to install a water stop plate. [Means for solving the problem]

[0006] In order to solve the above problems, the water-stopping device of the present invention comprises a post installed at the entrance / exit of a building, a waterstop plate, and a mounting fixture for attaching the waterstop plate to the post, wherein the mounting fixture includes a hook attached to the post, an operating portion for operating the waterstop plate in the vertical direction, a regulating hole for regulating the direction of movement of the waterstop plate, and a protrusion fixed to the waterstop plate and loosely fitted into the regulating hole, and the regulating hole includes a curved portion that curves from the vertical direction to the horizontal direction.

[0007] In this case, the mounting fixture includes a fixed piece fixed to the water stop plate, the fixed piece including a retaining hole for holding the operating part so as to be horizontally movable, and the mullion includes a slit for receiving the hook so as to be vertically movable. Effect of the Invention

[0008] According to the water stop device of the present invention, a mounting tool is provided, and a restricting hole is provided in the mounting tool to restrict the moving direction of the water stop, and the restricting hole has a curved portion that curves from the vertical direction to the horizontal direction, so that the water stop can be pressed in different directions, that is, the vertical direction and the horizontal direction, with a single operation. Therefore, it is possible to reduce the time and effort required for installing the water stop device and quickly install the water stop. [Brief description of the drawings]

[0009] [Figure 1] 1 is an exploded perspective view of a water stopping device according to an embodiment of the present invention; [Diagram 2] FIG. 2A is a plan view and a front view showing the configuration of a water stopping device, and FIG. [Diagram 3] FIG. 3A is a plan view and a side view showing the configuration of a water stopping device, and FIG. [Figure 4] 10 is a schematic diagram showing the function of the water stopping device as viewed from the side. FIG. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0010] An embodiment of a water stop device according to the present invention will be described below with reference to the drawings. In the following description, the side where the second packing 32 is attached to the water stop plate 3 will be described as the back surface 1b of the water stop device 1, and the opposite side will be described as the front surface 1a of the water stop device 1. The mounting fixtures 2 are arranged in pairs on both the left and right sides of the water stop plate 3, but since the pair of mounting fixtures 2 are symmetrical, only the mounting fixture 2 on the right side will be described.

[0011] The water stop device 1 shown in Figures 1 to 3 is composed of a mullion 4 that is detachably installed at the entrance E of a building, a water stop plate 3 that blocks the entrance E to prevent water from entering, a mounting fixture 2 that attaches the water stop plate 3 to the mullion 4, and a frame 5 on which the water stop plate 3 is placed. In Figure 1, the water stop device 1 is installed inside the entrance E, but it is also possible to install the water stop device 1 outside the entrance E. In this case, when installed inside the entrance E, the front surface 1a is installed so that it faces inside the building, and when installed outside the entrance E, the front surface 1a is installed so that it faces outside the building.

[0012] The mullions 4 function as pillars supporting the waterstop 3. In addition, a frame 5 on which the waterstop 3 is placed is provided below the mullions 4. Note that the mullions 4 can be made of square pillars, square pipes, extrusion-molded members, etc.

[0013] The waterstop 3 is composed of a main body 33, a first packing 31 attached to the bottom surface 33b of the main body 33, and a second packing 32 attached to the area where the waterstop 3 abuts against the upright 4. The first packing 31 is pressed against the frame 5, and the second packing 32 is pressed against the upright 4, so that the waterstop 3 is tightly attached to the upright 4 and the frame 5 via the first packing 31 and the second packing 32, and water intrusion can be reliably prevented. The first packing 31 and the second packing 32 are made of a flexible material such as rubber or resin. It is also possible to attach a handle (not shown) for carrying to the top surface 33a of the main body 33.

[0014] The mounting device 2 is composed of a main body 21, a bolt 24 with a knob 24a as an operating part for operating the waterstop 3 in the vertical direction, a fixing piece 25 fixed to the waterstop 3, and a headed protrusion 26 fixed to the waterstop 3 and loosely fitted into a restricting hole. At this time, the head 26a of the protrusion 26 acts as a member to prevent the main body 21 from coming off. A bolt screwed into the waterstop 3 can be used as the protrusion 26.

[0015] The fixing pieces 25 are metal pieces having a generally L-shaped cross section, fixed to both side surfaces of the waterstop 3 so that the bottom side of the L shape becomes the top surface 25a. At this time, the top surface 25a is fixed so as to be in the same plane as the top surface 33a of the main body 33 of the waterstop 3. Furthermore, a slit-shaped retaining hole 25b is formed in the top surface 25a, and the retaining hole 25b retains the bolt 24 so that it can move horizontally toward the front surface 1a or the rear surface 1b.

[0016] The body 21 of the mounting fixture 2 is formed with a hook 22 that is hooked into a slit 41 formed in the mullion 4, and a restriction hole 23 that restricts the moving direction of the waterstop 3 is opened at the base end of the hook 22. The restriction hole 23 includes a curved portion 23a that curves from the vertical direction to the horizontal direction.

[0017] A groove 21a is formed at the upper end of the main body 21 to receive a bolt 24 with a knob 24a, and a nut 21b is formed in the groove 21a to screw in the bolt 24. The bolt 24 is inserted into a retaining hole 25b of the fixing piece 25 and screwed into the nut 21b.

[0018] The mullion 4 is provided with a slit 41 that receives the hook 22 so as to be vertically movable. The slit 41 is formed long in the vertical direction, and the upper end of the slit 41 engages with the hook-shaped portion 22a of the hook 22 when the waterstop 3 is in the attached state (see FIG. 4(b)).

[0019] Next, the operation of installing the water stop device 1 having the above-mentioned configuration will be described with reference to Fig. 4. First, as shown in Fig. 4(a), the water stop plate 3 is placed on the first packing 31, and the hook 22 is inserted into the slit 41 with the second packing 32 lightly abutting against the mullion 4. Then, when the knob 24a of the bolt 24 is rotated forward, the bolt 24 advances deeper into the groove 21a while threading into the nut 21b. Note that forward rotation refers to the direction in which the bolt 24 tightens, and reverse rotation refers to the direction in which the bolt 24 loosens.

[0020] At this time, bolt 24 is held by fixing piece 25 at the same height as top surface 33a of body 33 of waterstop 3. Therefore, body 21 is pulled up vertically relative to waterstop 3, and hook 22 engages with the upper end of slit 41. At this time, slit 41 allows hook 22 to move vertically, so does not prevent body 21 from moving vertically upward.

[0021] Next, when the knob 24a of the bolt 24 is further rotated in the forward direction while the hook 22 is engaged with the upper end of the slit 41, the waterstop 3 is pulled vertically downward relative to the main body 21, the first packing 31 is pressed vertically downward, and the waterstop 3 is tightly attached to the frame 5. At this time, the protrusion 26 inserted into the restriction hole 23 also moves vertically downward inside the restriction hole 23.

[0022] Since the restriction hole 23 is gradually curved in the horizontal direction toward the lower side, the water stop plate 3 also gradually curves in the horizontal direction with respect to the main body 21, that is, Back direction 2. The bolt 24 moves toward the mullion 4. At this time, since the bolt 24 is held by the holding hole 25b so as to be horizontally movable, the waterstop 3 does not hinder the horizontal movement of the waterstop 3.

[0023] When the knob 24a is turned sufficiently, the second packing 32 is pressed, and the waterstop 3 is brought into close contact with the mullion 4, as shown in Fig. 4(b). To release the waterstop 3, the knob 24a of the bolt 24 is turned in the reverse direction. Note that, in this embodiment, the protrusion 26 is moved to the end of the restriction hole 23, but it is sufficient that the first packing 31 and the second packing 32 are pressed to an appropriate degree to ensure waterproofing, and the installation can also be completed halfway through the restriction hole 23.

[0024] Therefore, according to this embodiment of the water stop device 1, mounting fixtures 2 are provided on both sides of the water stop plate 3, and regulating holes 23 are provided in the mounting fixtures 2 to regulate the movement direction of the water stop plate 3, and the regulating holes 23 are provided with curved portions 23a that curve from the vertical direction to the horizontal direction, so that the pressing force applied in the vertical direction can be changed to a horizontal pressing force, and pressing in multiple directions can be performed with a single operation.

[0025] Furthermore, since the fixing piece 25 that holds the bolt 24 is provided with a retaining hole 25b that allows the bolt 24 to move horizontally, the waterstop 3 is permitted to move horizontally and can reliably press the second gasket 32. Furthermore, a slit 41 for engaging the hook 22 is formed in the mullion 4, and since the slit 41 allows the hook 22 to move vertically, the hook 22 can be easily attached to and detached from the slit 41.

[0026] The present invention is not limited to the above-described embodiment, and the shape and configuration of each part can be appropriately modified without departing from the spirit of the present invention. [Explanation of symbols]

[0027] 1. Water stop device 2 Mounting fixture 3. Waterstop 4. Post 5 Frames 21 Body of mounting fixture (a: groove, b: nut) 22 Hook (a: hook-shaped part) 23 Restriction hole (a: curved part) 24 Bolt (a: knob) 25 Fixed piece (a: top surface, b: retaining hole) 26 Projection (a: head) 31 First packing 32 Second packing 33 Water stop body (a: top surface, b: bottom surface) 41 Slit E entrance

Claims

1. A water stop device including a post installed at the entrance of a building, a water stop plate, and a mounting fixture for mounting the water stop plate to the post, The mounting fixture includes a hook that is hooked onto the upright, an operating portion that operates the waterstop in the vertical direction, a restricting hole that restricts the moving direction of the waterstop, and a protrusion that is fixed to the waterstop and loosely fitted into the restricting hole, The restriction hole includes a curved portion that curves from a vertical direction to a horizontal direction, A water stopping device characterized in that the curved portion approaches the hook in the horizontal direction as it extends vertically downward.

2. The mounting fixture includes a fixing piece fixed to the water stop, The water stop device according to claim 1 , wherein the fixing piece includes a holding hole that holds the operating portion so that the operating portion can move horizontally.

3. 3. A waterproof device according to claim 1 or 2, wherein the upright has a slit for receiving the hook so as to be vertically movable.

4. A mounting tool for attaching a water stop to a post installed at the entrance of a building, The mounting fixture includes a hook that is hooked onto the upright, an operating portion that operates the waterstop in the vertical direction, a restricting hole that restricts the moving direction of the waterstop, and a protrusion that is fixed to the waterstop and loosely fitted into the restricting hole, The restriction hole includes a curved portion that curves from a vertical direction to a horizontal direction, A mounting fixture for a water stop device, characterized in that the curved portion approaches the hook in the horizontal direction as it extends vertically downward.

Citation Information

Patent Citations

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