JP7769575B2 - Installation jig for engaged portion of waterstop and installation method for engaged portion of waterstop - Google Patents

Description

The present invention relates to a waterstop engagement part installation jig for installing an engagement part for engaging a waterstop to a waterstop support part at the opening of a building or underground passage, etc., and to a method for installing an engagement part for a waterstop using this waterstop engagement part installation jig.

When rising water caused by a typhoon or heavy rain enters the opening of a building or an underground passage, it can cause serious damage due to flooding. To prepare for such an event, a conventional system is known in which grooved posts are erected facing each other on both sides of the opening of a building or an underground passage, and water stops are stored near the posts, so that when the water level rises, the water stops are inserted into the grooves of the posts to close the opening and prevent water from entering (see Patent Document 1).
However, in the above-mentioned conventional technology, in order to fit the waterstop into the grooves in the support posts on both sides, it is necessary to lift the heavy waterstop to a position higher than the groove and insert it into the groove, which can be a difficult task.
Therefore, a structure is proposed in which multiple engaging portions are provided on the opening side surfaces of the left and right supports, and multiple engaging portions are provided on the rear surface of the water stop plate, and these engaging portions and engaging portions are engaged so that the water stop plate is pressed against the left and right supports.

Japanese Patent Application Laid-Open No. 2005-2644

However, if the positioning accuracy of the multiple engaged portions is poor, there is a risk of water-stopping performance being compromised. In particular, when multiple waterstops are stacked vertically, there is a risk of significant deviation in the actual dimensions, such as the vertical pitch and position in the thickness direction of the waterstop, between the engaged portions of the lower and upper waterstops.

In view of the above problems, the present invention has the following configuration.
In a waterstop device in which the lower engaging portion and upper engaging portion of a waterstop plate are engaged with the lower engaged portion and upper engaged portion of a waterstop support portion, an installation jig for the engaged portion of a waterstop plate is used to position the lower engaged portion and the upper engaged portion, the installation jig having a first engaging portion on one end that engages with the lower engaged portion and a second engaging portion on the other end that engages with the upper engaged portion, and the pitch of the first engaging portion and the second engaging portion corresponds to the pitch of the lower engaging portion and the upper engaging portion of the waterstop plate.

The present invention is configured as described above, making it easy to fix the engaging portion for engaging the waterstop in the appropriate position.

1 is a perspective view showing an example of a waterproofing device according to the present invention. FIG. 2 is a perspective view showing the water stop device with multiple water stop plates separated from the left and right water stop plate support portions. FIG. 2 is a perspective view of a main part showing the separated state of the waterstop and the waterstop support portion. 10 is an enlarged view of a main part showing the surface of the waterstop support portion on the opening side. FIG. This is an exploded oblique view of the main parts showing the relationship between the waterstop support portion, the upper and lower engaged portions, the waterstop engaged portions, and the installation jig for the waterstop engaged portions. FIG. 10A to 10C are front views of the main part showing the procedure for installing the lower engaged portion and the upper engaged portion in order. 10A to 10C are front views of the main parts showing the steps for installing the lower engaged portion of the upper water stop plate in order. 9 is a longitudinal cross-sectional view taken along line (IX)-(IX) in FIG. 1, showing the waterstop being attached to the waterstop support portion. Note that hatching of the cross section of the waterstop body is omitted. 9 is a longitudinal cross-sectional view taken along line (IX)-(IX) in FIG. 1, showing the waterstop plate attached to the waterstop plate support portion. Note that hatching of the cross section of the plate body is omitted.

This embodiment discloses the following features.
The first feature is an installation jig for the engaged portion of a waterstop plate, which is a waterstop device in which the lower engaging portion and upper engaging portion of the waterstop plate are engaged with the lower engaged portion and upper engaged portion of the waterstop support portion, and which is used to position the lower engaged portion and the upper engaged portion, and which has a first engaging portion on one end that engages with the lower engaged portion and a second engaging portion on the other end that engages with the upper engaged portion, and the pitch of the first engaging portion and the second engaging portion corresponds to the pitch of the lower engaging portion and the upper engaging portion on the waterstop plate (see Figures 5 and 6).

The second feature is a waterstop device in which multiple waterstops each having a lower engaging portion and an upper engaging portion are stacked together, and the lower engaging portion and upper engaging portion of each waterstop are engaged with the lower engaged portion and upper engaged portion of the waterstop support part. The waterstop engaging portion installation jig is used to position the lower engaged portion and the upper engaged portion, and has a first engaging portion at one end that can be fitted into the lower engaged portion and a second engaging portion at the other end that can be fitted into the upper engaged portion. A third mating portion that can be mated with the upper engaged portion is provided between the first mating portion and the second mating portion, and the pitch between the first mating portion and the second mating portion corresponds to the pitch between the lower engaging portion and the upper engaging portion of a single waterstop, and the pitch between the third mating portion and the first mating portion corresponds to the pitch between the upper engaging portion of the lower waterstop and the lower engaging portion of the upper waterstop of adjacent waterstops (see Figures 5 and 6).

A third feature is that the lower engaged portion and the upper engaged portion are each formed in an axial shape so as to protrude from the waterstop support portion, the first mating portion is formed to mate with the lower engaged portion from above, and the second mating portion is formed to mate with the upper engaged portion from below (see Figures 5 and 7).

A fourth feature is that at least one of the first, second, and third mating portions is formed to non-rotatably fit with the lower engaged portion or the upper engaged portion (see Figures 5 and 8).

As a fifth feature, the flat surfaces of either the mating portion and the lower or upper engaged portion are overlapped so that they fit together non-rotatably (see Figure 5).

The sixth feature is a method for installing a waterstop engaged portion using the installation jig for the waterstop engaged portion, which includes a first step of fixing the lower engaged portion to a predetermined position on the waterstop support portion, a second step of fitting the first fitting portion downward to the lower engaged portion, and a third step of fitting the upper engaged portion to the second fitting portion and fixing it to the waterstop support portion (see Figure 7).

The seventh feature is a method for installing a waterstop engaged portion using the waterstop engaged portion installation jig, comprising the following steps: a first step of fixing the lower engaged portion corresponding to the lower engaging portion of the lower waterstop to a predetermined position on the waterstop support portion; a second step of fitting the first mating portion downward to the lower engaged portion; a third step of fitting the upper engaged portion into the second mating portion and fixing it to the waterstop support portion; a fourth step of fitting the third mating portion into the upper mating portion and orienting the first mating portion or the second mating portion upward; and a fifth step of fitting the lower engaged portion corresponding to the upper waterstop to be stacked into the upward-facing first mating portion or the second mating portion and fixing it to the waterstop support portion (see Figures 7 and 8).

<Specific embodiment>
Next, specific embodiments having the above-mentioned features will be described in detail with reference to the drawings.
1 and 2 show an example of a waterproof device according to the present invention.
The water stop device 1 comprises a plurality of water stops 10 piled up so as to block the opening A, and left and right water stop support parts 20, 20 supporting the water stops 10 on both sides of the opening A, and the plurality of water stops 10 block water that tries to infiltrate from the outside to the inside.

Each waterstop 10 comprises a board body 11, a watertight material 12 (see Figures 3 and 13) pressed against the waterstop support parts 20 at both ends of the board body 11 in the width direction, a watertight material 13 pressed against the lower surface at the lower end of the board body 11 (for example, the upper end surface of the adjacent waterstop 10 on the lower side, or the floor surface, etc.), and, at each of the left and right ends of the board body 11, a lower engaging part 14 that engages with the lower engaged part 31 of the waterstop support part 20 from one side in the waterstop thickness direction (the outdoor side in the illustrated example), and an upper engaging part 15 that engages with the upper engaged part 32 of the waterstop support part 20 from the same side.

The plate body 11 is formed in a horizontally elongated rectangular shape from a hard material such as metal, and one end side and the other end side of the plate body 11 are positioned so as to overlap the outdoor surface of the waterstop support portion 20 .
In the illustrated example, the plate body 11 is formed by connecting multiple elongated rectangular members formed by drawing in the vertical direction (see Figures 9 and 10), but in another example, it can also be formed from a single elongated rectangular member.

Watertight materials 12 and 13 are long members made of an elastic material such as rubber or elastomer resin.

One of the watertight materials 12 is fixed to the indoor surface at each of the left and right ends of the board body 11, and is continuous over substantially the entire vertical length of the board body 11. This watertight material 12 contacts the outdoor surface of the waterstop support part 20 from one side in the thickness direction of the waterstop (the outdoor side in the illustrated example) over substantially its entire length.
The watertight material 12 is pressed against the waterstop support portion 20 in a watertight manner by the water pressure that the waterstop 10 receives from the outside.

The other watertight material 13 is fixed so as to protrude downward from the lower end of the plate body 11 and is continuous over approximately the entire width of the plate body 11. This watertight material 13 contacts the upper end of the lower waterstop 10 or the floor surface over approximately its entire length. Furthermore, this watertight material 13 is watertightly pressed against the lower surface by the weight of the waterstop 10.

The lower engaging portion 14 protrudes from the indoor surface of the board body 11 at one end in the width direction of the board body 11 and is formed to engage with the lower engaged portion 31 on the waterstop support portion 20 side from diagonally above the outdoor side (see Figure 9).

The upper engagement portion 15 protrudes from the indoor surface of the board body 11 at one end in the width direction of the board body 11 and engages with the upper engaged portion 32 of the waterstop support portion 20 by approaching it from diagonally above on the outdoor side, preventing it from disengaging. This engaged state can be released by manually operating the engagement/disengagement mechanism (not shown).

In addition, the waterstop support portion 20 integrally comprises a support pillar 21 erected on one end side of the width direction of the opening A, and a support plate 24 fixed to the surface of the support pillar 21 on the opening A side.
This waterstop support portion 20 has multiple sets of axial lower engaged portions 31 and upper engaged portions 32 fixed thereto, which protrude from the surface on the side of the opening A (in the illustrated example, the surface of the support plate 24) and are spaced apart in the vertical direction.

The support pillar 21 is an elongated member made of a hard material such as metal.
According to the illustrated example, the support 21 is integrally formed of a C-channel-shaped main body 21a that continues in the vertical direction and a reinforcing member 21b that reinforces the main body 21a so as to close the opening of the main body 21a.
A through-hole (not shown) communicating with insertion holes 24a and 24b (described later) is provided in the wall of the support 21 on the opening A side. Nut-shaped members (e.g., weld nuts, not shown) that are threaded onto the lower engaged portion 31 and the upper engaged portion 32 are fixed to the back side of the through-hole.

The support plate 24 is a long, plate-like member that is continuous in the vertical direction. The support plate 24 has a plurality of pairs of insertion holes 24a for inserting the base ends of the lower engaged portions 31 and insertion holes 24b for inserting the base ends of the upper engaged portions 32, which are spaced apart at a predetermined interval in the vertical direction (see FIG. 5).
The support column 21 and the support plate 24 may be formed as an integrated member. That is, if the insertion holes 24a and 24b are formed directly on the surface of the support column 21 on the opening A side, the support plate 24 may be omitted.

The lowermost insertion hole 24a in the support plate 24 is formed in a circular shape (round hole shape) into which the base end side of the lower engaged portion 31 is fitted so as to be immovable up and down.
The insertion holes 24b and 24a, which are located above the lowest insertion hole 24a, are both formed as elongated holes in the vertical direction so that the upper engaged portion 32 and the lower engaged portion 31 can be adjusted in the vertical direction (see Figure 5).

The insertion hole 24b is provided closer to the indoor side than the insertion hole 24a.
In other words, the insertion hole 24a is positioned offset to one side in the thickness direction of the waterstop (toward the outside in the illustrated example) with respect to the insertion hole 24b.
Therefore, as shown in Figure 4, the lower engaged portion 31 that fits into the insertion hole 24a is positioned offset by a dimension W to one side in the thickness direction of the water stop plate (towards the outside according to Figure 4) relative to the upper engaged portion 32 that fits into the insertion hole 24b.

The lower engaged portion 31 integrally has a base shaft portion 31a that is inserted into the support post 21 and the support plate 24, a flange portion 31b that fits non-rotatably into the installation jig 2 for the waterstop engaged portion described later, and an engaging shaft portion 31c that engages with the lower engaging portion 14 of the waterstop 10 (see Figure 5).
The base shaft 31a is formed in a cylindrical shape and has a male screw portion at its tip end, which is screwed into a nut-like member (not shown) inside the support 21 and tightened.

In the illustrated example, the flange 31b is formed in the shape of a square prism. This flange 31b only needs to fit non-rotatably into the installation jig 2 for the waterstop engaged portion. For example, it can be in the shape of a polygonal prism such as a hexagonal prism, or a shape with two parallel sides.

The upper engaged portion 32 is a member of the same shape as the lower engaged portion 31, and integrally includes a base shaft portion 32a, a flange portion 32b, and an engaging shaft portion 32c. The upper engaged portion 32 in the illustrated example has the same shape as the lower engaged portion 31, and is a common part.
As with the lower engaged portion 31, the male thread portion at the tip end of the base shaft portion 32a of the upper engaged portion 32 is screwed into a nut-like member (not shown) inside the support 21 and tightened.

Next, the manufacturing features of the waterproof device 1 having the above configuration will be described in detail.
When attaching the lower engaged portion 31 and the upper engaged portion 32 to the waterstop support portion 20, a waterstop engaged portion installation jig 2 is used (see Figure 5).

The installation jig 2 for the waterstop engaged portion is a jig used to position the lower engaged portion 31 and the upper engaged portion 32 in the waterstop device 1 described above.

This waterstop engagement part installation jig 2 has a first engagement part 2a at one longitudinal end that can fit into the flange part 31b of the lower engagement part 31, a second engagement part 2b at the other end that can fit into the upper engagement part 32, and a third engagement part 2c between the first engagement part 2a and the second engagement part 2b that can fit into the upper engagement part 32.

The first fitting portion 2a is formed in a recessed shape so as to be non-rotatable relative to the flange portion 31b of the lower engaged portion 31 and to fit into it from above.
The second fitting portion 2b is formed in a recessed shape that is non-rotatable and fits into the flange portion 32b of the upper engaged portion 32 from below.
The third fitting portion 2c is formed in the shape of a square hole that fits non-rotatably and annularly with the flange portion 32b of the upper engaged portion 32.

That is, the flat surfaces of the first fitting portion 2 a, the second fitting portion 2 b, and the third fitting portion 2 c and the corresponding lower engaged portion 31 or upper engaged portion 32 are overlapped with each other so as to be non-rotatable with each other. More specifically, for example, a flat portion of the inner peripheral surface of the square-hole-shaped third fitting portion 2 c overlaps with a flat portion of the outer peripheral surface of the flange portion 32 b of the upper engaged portion 32.
The first fitting portion 2a, the second fitting portion 2b, and the third fitting portion 2c may have a shape other than that shown in the illustration, as long as they have the flat inner surface.

The pitch P1 between the first fitting portion 2 a and the second fitting portion 2 b is set to be approximately the same as the pitch between the lower engaging portion 14 and the upper engaging portion 15 in a single waterstop 10 .
The pitch P2 between the third mating portion 2c and the first mating portion 2a is set to be approximately the same as the pitch between the upper engagement portion 15 of the lower water stop plate 10 and the lower engagement portion 14 of the upper water stop plate 10 of the adjacent water stop plates 10, 10 located vertically.

The first mating portion 2a is offset by a dimension W toward the outdoor side relative to the second mating portion 2b, and is offset by a dimension W toward the indoor side relative to the third mating portion 2c (see Figure 6).

The following steps show the procedure for fixing the lower engaged portion 31 and the upper engaged portion 32 to the waterstop support portion 20 using the installation jig 2 for the waterstop engaged portion.
First, in the first step, the lower engaged portion 31, which serves as a reference, is fixed to the lowest insertion hole 24a in the support plate 24 of the waterstop support portion 20 (see Figures 5 and 7(a)).
More specifically, the lower engaged portion 31 is fixed immovably by inserting its base shaft 31a into the insertion hole 24a and a through-hole (not shown) in the peripheral wall of the support 21 and screwing it into a nut-like member (not shown) on the back side of the support 21. The lower engaged portion 31 fixed in this first step corresponds to the lower engaging portion 14 of the lowest waterstop 10.

In the next step, the first mating portion 2a of the installation jig 2 for the waterstop mating portion is faced downward and mated with the previously fixed lower mating portion 31 (see Figures 5 and 7(b)). In this step, the second mating portion 2b faces upward.

In the next third step, the upper engaged portion 32 is fitted into the upward second fitting portion 2b of the installation jig 2 for the waterstop engaged portion, and fixed to the waterstop support portion 20 (see Figures 5 and 7(b) and (c)).
According to the above process, the upper engaged portion 32 is positioned with high accuracy in the vertical direction by fitting into the second fitting portion 2b of the installation jig 2 for the waterstop engaged portion while being inserted into the elongated insertion hole 24b of the support plate 24. Then, this upper engaged portion 32 is fixed immovably by being screwed onto and tightened by a nut-shaped member (not shown) inside the support 21.

In the next, fourth step, the first engaging portion 2a is facing upward, and the third engaging portion 2c of the waterstop engaging portion installation jig 2 is fitted annularly into the upper engaging portion 32 (see Figures 5 and 8(b)).

In the next fifth step, the lower engaged portion 31 corresponding to the lower engaging portion 14 of the upper water stop plate 10 to be stacked is fitted into the upward-facing first fitting portion 2a and fixed to the water stop plate support portion 20 (see Figures 5 and 8(b)(c)).
More specifically, the lower engaged portion 31 is positioned with high accuracy in the vertical direction by fitting into the second fitting portion 2b while being inserted into the elongated insertion hole 24a (see FIG. 5) of the support plate 24. The lower engaged portion 31 is then screwed onto and tightened by a nut-like member (not shown) inside the support 21, thereby immovably fixing it in place.

The installation jig 2 for the engaged portion of the waterstop plate used in the fifth step may be the installation jig 2 for the engaged portion of the waterstop plate used in the second step, but other installation jig 2 for the engaged portion of the waterstop plate of the same shape may also be used.
Furthermore, in the illustrated example, the installation jig 2 for the waterstop engaged portion is removed after the fifth step, but as another example, the waterstop device 1 may be used with the installation jig 2 for the waterstop engaged portion still attached to the waterstop support portion 20.

As an alternative to the fourth step, the dimensions of each part can be adjusted so that the second mating part 2b faces upward, and the third mating part 2c fits into the upper mating part 32. In this case, in the fifth step, the lower mating part 31 fits into the upward-facing second mating part 2b and is fixed to the waterstop support part 20.

The above manufacturing method therefore improves dimensional accuracy with respect to the pitch between the lower engaged portions 31 and upper engaged portions 32 corresponding to each water stop 10, and the pitch between the upper engaged portions 32 corresponding to the lower water stop 10 and the lower engaged portions 31 corresponding to the upper water stop 10, and makes it possible to easily fix the lower engaged portions 31 and upper engaged portions 32 in the appropriate positions.

Next, the features of the work of installing the waterstop 10 between the left and right waterstop support portions 20, 20 will be described in detail.
The waterstop 10 is transported by a worker or the like and attached between the left and right waterstop support portions 20, 20 from the outdoor side.
At this time, the worker lifts the waterstop 10 and first brings the lower end side of the waterstop 10 close to the waterstop support portion 20 as shown in FIG. 9 .
Then, after engaging the lower engaging portion 14 of the water stop 10 with the lower engaged portion 31, the water stop 10 is rotated in one direction (clockwise in the illustrated example) around the lower engaged portion 31, so that the upper engaging portion 15 engages with the upper engaged portion 32 (see Figure 10).

As described above, when engaging the lower engaging portion 14 before the upper engaging portion 15, the lower engaged portion 31 is located closer to the outdoors (toward the waterstop 10) than the upper engaged portion 32 by the dimension W (see Figure 4), making the work easier.

<Modification>
According to the above embodiment, as a particularly preferred aspect, the lower engaged portion 31 and the upper engaged portion 32 are each formed in the shape of a cylindrical shaft, but as another example, the lower engaged portion 31 and the upper engaged portion 32 can each be formed in the shape of a shaft having a polygonal cross section or in the shape of a shaft of some other shape.

Other examples of installation jigs for waterstop engaged portions include those with concave fitting portions that open to the side, and fitting portions with other shapes. Furthermore, the number of fitting portions 2a, 2b, and 2c can be two or four or more.

In addition, in the above embodiment, three waterstops 10 are stacked, but it is also possible to use a single waterstop 10, or two or four or more waterstops 10 stacked together.

In addition, in the above embodiment, the water stop device 1 is used to prevent water generated outdoors due to flooding or the like from entering the indoor side. As another example, the water stop device 1 can be placed upside down to prevent water generated indoors from flowing indoors.

The present invention is not limited to the above-described embodiments and can be modified as appropriate without departing from the spirit of the present invention.

1: Waterstop device 2: Installation jig for waterstop engaged portion 2a: First engaging portion 2b: Second engaging portion 2c: Third engaging portion 10: Waterstop 11: Plate body 14: Lower engaging portion 15: Upper engaging portion 20: Waterstop support portion 24a: Insertion hole 24b: Insertion hole 31: Lower engaged portion 32: Upper engaged portion A: Opening P1, P2: Pitch

Claims (7)

In a waterstop device in which the lower engaging portion and the upper engaging portion of a waterstop plate are engaged with the lower engaged portion and the upper engaged portion of a waterstop support portion, an installation jig for the waterstop engaged portion is provided for positioning the lower engaged portion and the upper engaged portion,
An installation jig for a waterstop engaged portion, characterized in that it has a first engaging portion on one end side that engages with the lower engaged portion, and a second engaging portion on the other end side that engages with the upper engaged portion, and the pitch between the first engaging portion and the second engaging portion corresponds to the pitch between the lower engaging portion and the upper engaging portion on the waterstop. In a waterstop device in which a plurality of waterstops each having a lower engaging portion and an upper engaging portion are stacked and the lower engaging portion and the upper engaging portion of each waterstop are engaged with the lower engaged portion and the upper engaged portion of a waterstop support part, an installation jig for the waterstop engaged portion is provided for positioning the lower engaged portion and the upper engaged portion,
a first fitting portion at one end side that can be fitted into the lower engaged portion, a second fitting portion at the other end side that can be fitted into the upper engaged portion, and a third fitting portion between the first fitting portion and the second fitting portion that can be fitted into the upper engaged portion;
a pitch between the first fitting portion and the second fitting portion corresponds to a pitch between the lower engaging portion and the upper engaging portion of a single waterstop;
An installation jig for a waterstop engaged portion, characterized in that the pitch of the third engaging portion and the first engaging portion corresponds to the pitch of the upper engaging portion of the lower waterstop and the lower engaging portion of the upper waterstop, of the adjacent waterstops located vertically. The lower engaged portion and the upper engaged portion are each formed in a shaft shape so as to protrude from the waterstop support portion,
the first fitting portion is formed to fit into the lower engaged portion from above,
3. The installation jig for a waterstop engaged portion according to claim 1, wherein the second fitting portion is formed so as to fit into the upper engaged portion from below. An installation jig for a waterstop engaging portion as described in claim 2, characterized in that at least one of the first engaging portion, the second engaging portion, and the third engaging portion is formed to engage non-rotatably with the lower engaging portion or the upper engaging portion. An installation jig for a waterstop engaging portion as described in claim 4, characterized in that the flat surfaces of either the engaging portion and the lower engaging portion or the upper engaging portion are overlapped so that they engage with each other non-rotatably. a first step of fixing the lower engaged portion to a predetermined position on the waterstop support portion;
a second step of fitting the first fitting portion downward to the lower engaged portion;
A method for installing an engaged portion for a waterstop using an installation jig for a waterstop engaged portion described in any one of claims 1 to 3, characterized in that it includes a third step of fitting the upper engaged portion into the second fitting portion and fixing it to the waterstop support portion. a first step of fixing the lower engaged portion corresponding to the lower engaging portion of the lower waterstop to a predetermined position of the waterstop support portion;
a second step of fitting the first fitting portion downward to the lower engaged portion;
a third step of fitting the upper engaged portion into the second fitting portion and fixing the upper engaged portion to the waterstop support portion;
a fourth step of fitting the third fitting portion into the upper engaged portion, and directing the first fitting portion or the second fitting portion upward;
A method for installing a waterstop engaging portion using a waterstop engaging portion installation jig described in any one of claims 2, 4, or 5, characterized in that it includes a fifth step of fitting the lower engaging portion corresponding to the upper waterstop to be stacked into the upward-facing first engaging portion or the second engaging portion and fixing it to the waterstop support portion.