Waterproof sheet installation aid and waterproof sheet installation method

Abstract

To provide a waterproof sheet installation auxiliary tool capable of suppressing the occurrence of wrinkles when installing a waterproof sheet, and a waterproof sheet installation method. [SOLUTION] The waterproof sheet installation auxiliary jig 1 is equipped with a pressing part 10 having a first pressing part 11A and a second pressing part 12A. The first pressing part 11A directly or indirectly presses a lower part 9A of a wall sheet part 9 attached to a wall 2 in a waterproof sheet 3. The second pressing part 12A presses an upper part 9B of the wall sheet part 9. The second pressing part 12A has a claw part 16. The claw part 16 is configured to pierce the waterproof sheet 3.

Description

[Technical field]

[0001] The present disclosure relates to a waterproof sheet installation auxiliary tool and a waterproof sheet installation method. [Background technology]

[0002] When a waterproof sheet is laid on a wall portion rising from the floor in a building, a jig is used to lay the waterproof sheet so as to prevent wrinkles from occurring in the waterproof sheet. For example, Patent Document 1 discloses a waterproof sheet installation auxiliary jig (called an installation jig in Patent Document 1). The waterproof sheet installation auxiliary jig in this document comprises a base and a pressing portion arranged to rotate relative to the base. The auxiliary portion has an elastic body. The auxiliary portion presses the waterproof sheet against the wall portion via the elastic body, thereby preventing wrinkles from occurring after pressing. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2002-129719 A Summary of the Invention [Problem to be solved by the invention]

[0004] However, there is room for improvement in waterproof sheet installation auxiliary jigs and waterproof sheet installation methods in terms of preventing the occurrence of wrinkles in the waterproof sheet by stretching out any slack in the waterproof sheet when installing the waterproof sheet. [Means for solving the problem]

[0005] (1) A waterproof sheet installation auxiliary jig that solves the above problem is a waterproof sheet installation auxiliary jig that assists in the work of attaching a waterproof sheet to a wall, and includes a pressing part having a first pressing part that directly or indirectly presses a lower part of a wall sheet part of the waterproof sheet to be attached to the wall, and a second pressing part that presses an upper part of the wall sheet part, the second pressing part having a claw part that is configured to pierce the waterproof sheet. According to this configuration, the pressing part presses the lower part and the upper part of the wall sheet part. This allows the pressing part to stretch out the slack in the waterproof sheet. This makes it possible to suppress the occurrence of wrinkles in the waterproof sheet.

[0006] (2) The waterproof sheet installation auxiliary tool of (1) above further includes a base portion, and the base portion is rotatably connected to the lower end portion of the pressing portion. According to this configuration, the pressing portion is rotatably connected to the base portion. Therefore, the pressing portion can be rotated to easily press the wall sheet portion.

[0007] (3) In the waterproof sheet installation auxiliary tool of (2) above, the lower end of the pressing part is rotatably connected to the base part by a first hinge member. According to this configuration, the lower end of the pressing part is rotatably connected to the base part by a first hinge member. Therefore, the pressing part can be rotated so as to easily press the wall sheet part.

[0008] (4) In any one of the waterproof sheet installation auxiliary jigs (1) to (3) above, the pressing portion includes a first pressing member and a second pressing member on which the claw portion is provided, and the second pressing member is rotatably connected to the first pressing member by a second hinge member. According to this configuration, the second pressing member is rotatably connected to the first pressing member by the second hinge member. Therefore, the pressing portion can rotate the second pressing member so as to easily pierce the claw portion into the wall sheet portion.

[0009] (5) In the waterproof sheet installation auxiliary tool of any one of (1) to (4) above, the pressing portion is configured by a leaf spring. According to this configuration, the pressing portion configured by the leaf spring presses the lower and upper portions of the wall sheet portion. This allows the pressing portion to straighten out the slack in the waterproof sheet. This makes it possible to suppress the occurrence of wrinkles in the waterproof sheet.

[0010] (6) In the waterproof sheet installation auxiliary tool of any one of (1) to (5) above, the pressing portion is provided with a pushing portion that pushes the pressing portion toward the waterproof sheet. According to this configuration, the pressing portion can be pushed toward the waterproof sheet by pressing the pushing portion. This allows the pressing portion to efficiently stretch out the slack in the waterproof sheet. This makes it possible to suppress the occurrence of wrinkles in the waterproof sheet.

[0011] (7) The waterproof sheet installation auxiliary tool according to any one of (1) to (6) above further includes a support member for supporting the pressing portion, the support member having a first end that directly or indirectly contacts the floor and a second end that contacts the pressing portion. With this configuration, the pressing portion can be supported by the support member. This makes it easier to maintain the state of the pressing portion that stretches out the slack in the waterproof sheet.

[0012] (8) A waterproof sheet installation method that solves the above problem is a waterproof sheet installation method for attaching a waterproof sheet to a wall, the waterproof sheet having a wall sheet portion that fits along a wall portion rising from a floor, and includes a first step of temporarily fastening the wall sheet portion with a waterproof sheet installation auxiliary tool described in any one of (1) to (7) above in a state in which the wall sheet portion is in contact with the wall portion, and a second step of fixing the wall sheet portion to the wall portion. According to this configuration, the wall sheet portion can be temporarily fastened with the waterproof sheet installation auxiliary tool. Therefore, the wall sheet portion can be fixed to the wall portion in a state in which the waterproof sheet is stretched by the waterproof sheet installation auxiliary tool. Effect of the Invention

[0013] According to the waterproof sheet installation auxiliary tool of the present disclosure, the occurrence of wrinkles can be suppressed when installing a waterproof sheet. According to the waterproof sheet installation method of the present disclosure, the occurrence of wrinkles can be suppressed when installing a waterproof sheet. [Brief description of the drawings]

[0014] [Figure 1] FIG. 2 is a front view of a wall portion according to the first embodiment. [Diagram 2] FIG. 11 is a perspective view of a wall portion according to the second embodiment. [Diagram 3] FIG. 3 is a cross-sectional view of a wall portion taken along line 3-3 in FIG. 1 according to the first embodiment. [Figure 4] FIG. 2 is a perspective view of a waterproof sheet installation auxiliary jig according to the first embodiment. [Diagram 5] FIG. 3 is a cross-sectional view of the wall portion taken along line 3-3 in FIG. 1, showing a first step of the waterproof sheet installation method according to the first embodiment. [Figure 6] FIG. 3 is a cross-sectional view of the wall portion taken along line 3-3 in FIG. 1, showing a first step of the waterproof sheet installation method according to the first embodiment. [Figure 7] FIG. 3 is a cross-sectional view of the wall portion taken along line 3-3 in FIG. 1, showing a second step of the waterproof sheet installation method according to the first embodiment. [Figure 8] FIG. 11 is a cross-sectional view of a wall portion according to the second embodiment. [Figure 9] FIG. 11 is a cross-sectional view of a wall portion in a first modified example. [Figure 10] FIG. 11 is a cross-sectional view of a wall portion of a second modified example. [Figure 11] FIG. 11 is a cross-sectional view of a wall portion of a second modified example. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0015] First Embodiment The waterproof sheet installation auxiliary tool 1 and the waterproof sheet installation method will be described with reference to Figs.

[0016] As shown in Figures 1 and 2, the waterproof sheet installation auxiliary jig 1 is a jig that assists in the work of attaching a waterproof sheet 3 to a wall 2. The wall 2 is a wall that is arranged to rise from the floor of a building 4. Examples include a veranda wall, a balcony wall, a wall that stands on the indoor side among walls that form an outdoor space, and a rising wall on a roof. In this embodiment, the wall 2 is a wall that rises from the balcony floor 4A of the building 4.

[0017] The wall 2 includes a frame 2A (see FIG. 3), a plywood 2B, and an exterior material 2C. The exterior material 2C is attached to the frame 2A with mounting brackets. Hereinafter, illustrations of the mounting brackets will be omitted. The plywood 2B is located below the exterior material 2C. A water-repellent material and a sealing material are provided between the plywood 2B and the exterior material 2C. Hereinafter, illustrations of the water-repellent material and the sealing material will be omitted.

[0018] As shown in Figs. 2 and 3, in this embodiment, the waterproof sheet 3 forms a unit steel plate 7 together with the gradient insulation material 5 and the steel plate 6. The waterproof sheet 3 is composed of a wall sheet portion 9 and a floor sheet portion 3A. The floor sheet portion 3A is joined to the steel plate 6. The wall sheet portion 9 is attached to the plywood 2B (described later). The unit steel plate 7 is arranged so as to be aligned with the plywood 2B and floor beams 8. With the unit steel plate 7 in position, the worker 1X uses the waterproof sheet installation auxiliary jig 1 to stretch the wall sheet portion 9 so as to be aligned with the plywood 2B.

[0019] The unit steel plate 7 may not be placed on the balcony floor 4A. In this case, the floor sheet portion 3A of the waterproof sheet 3 is placed on the balcony floor 4A without the steel plate 6 and the gradient insulation material 5. In addition, a drain is provided on the balcony floor 4A near the wall 2. Hereinafter, the drain is not shown in the drawings.

[0020] As shown in FIG. 3 and FIG. 4, the waterproof sheet installation auxiliary jig 1 includes a pressing portion 10. The pressing portion 10 includes a first pressing member 11 and a second pressing member 12. In this embodiment, the first pressing member 11 and the second pressing member 12 are made of metal plates. The first pressing member 11 includes a first pressing portion 11A. The second pressing member 12 includes a second pressing portion 12A. The first pressing portion 11A directly or indirectly presses the lower portion 9A of the wall sheet portion 9. In this embodiment, the waterproof sheet installation auxiliary jig 1 includes a base portion 13. The lower end portion 10A of the pressing portion 10 is rotatably connected to the base portion 13. Specifically, the lower end portion 10A of the first pressing member 11 of the pressing portion 10 is rotatably connected to the base portion 13 by a first hinge member 14. As a result, the first pressing portion 11A of this embodiment indirectly presses the lower portion 9A of the wall sheet portion 9. The first hinge member 14 of this embodiment is connected to the first pressing member 11 by a bolt and a nut. The first hinge member 14 is also connected to the base portion 13 by a screw. The base portion 13 of this embodiment is formed in a rectangular parallelepiped. The base portion 13 does not have to be formed in a rectangular parallelepiped. The base portion 13 may be formed in a rectangular parallelepiped. Also, the base portion 13 may be formed in a semi-sphere.

[0021] The second pressing member 12 is rotatably connected to the first pressing member 11 by a second hinge member 15. In this embodiment, the second hinge member 15 is connected to the first pressing member 11 by a bolt and a nut. In addition, the second pressing portion 12A has a claw portion 16. The claw portion 16 is configured to pierce the waterproof sheet 3. In this embodiment, the claw portion 16 is formed in a fork shape. The claw portion 16 may be formed in a trident shape. In addition, the claw portion 16 may have a plurality of needles. The second pressing portion 12A having the claw portion 16 presses an upper portion 9B of the wall sheet portion 9 in the waterproof sheet 3 (described later).

[0022] The first pressing member 11 is provided with a pressing portion 17 that presses the pressing portion 10 toward the waterproof sheet 3. In this embodiment, the pressing portion 17 is formed in a mushroom shape. The pressing portion 17 may also be formed in a triangular prism shape. The pressing portion 17 may also be formed in a rod shape. In this embodiment, the worker 1X manually presses the pressing portion 17 (see FIG. 2).

[0023] The width of the first pressing member 11 is formed to be 30 mm or more and 50 mm or less. The thickness of the first pressing member 11 is formed to be 2 mm or more and 5 mm or less. The height of the first pressing member 11 is formed to be 80 mm or more and 140 mm or less. The width of the second pressing member 12 is formed to be 30 mm or more and 50 mm or less. The thickness of the second pressing member 12 is formed to be 2 mm or more and 5 mm or less. The height of the second pressing member 12 is formed to be 80 mm or more and 140 mm or less. In this embodiment, the width of the first pressing member 11 and the second pressing member 12 is formed to be 40 mm. The height of the first pressing member 11 and the second pressing member 12 is formed to be 110 mm. The thickness of the first pressing member 11 and the second pressing member 12 is formed to be 3 mm.

[0024] In the width direction of the first pressing member 11, the width of the pedestal portion 13 is formed to be 70 mm or more and 110 mm or less. The height of the pedestal portion 13 is formed to be 20 mm or more and 50 mm or less. In the thickness direction of the first pressing member 11, the depth of the pedestal portion 13 is formed to be 25 mm or more and 35 mm or less. In this embodiment, the width of the pedestal portion 13 is formed to be 90 mm. The height of the pedestal portion 13 is formed to be 30 mm. The depth of the pedestal portion 13 is formed to be 28 mm.

[0025] In the width direction of the first pressing member 11, the diameter of the pressing portion 17 is formed to be 30 mm or more and 50 mm or less. The thickness of the pressing portion 17 is formed to be 25 mm or more and 35 mm or less. In this embodiment, the diameter of the pressing portion 17 is formed to be 40 mm. The thickness of the pressing portion 17 is formed to be 28 mm.

[0026] The claw portion 16 of this embodiment is composed of a first claw 16A and a second claw 16B. The first claw 16A and the second claw 16B are formed with a certain distance between them in the width direction of the first pressing member 11. The distance between the first claw 16A and the second claw 16B is 10 mm or more and 50 mm or less. A preferred example is 29 mm.

[0027] <How to install waterproof sheet> A waterproof sheet installation method for attaching the wall sheet portion 9 of the waterproof sheet 3 to the wall 2 will be described with reference to Figs.

[0028] The waterproof sheet installation method includes a first step and a second step. The first step starts with the wall sheet portion 9 of the waterproof sheet 3 being brought into contact with a wall portion 4B rising from a balcony floor 4A so as to extend along the wall. Each step will be described below. Note that the worker 1X is not shown in Figs. 5 to 7.

[0029] As shown in FIG. 5 and FIG. 6, in the first step, the waterproof sheet installation auxiliary jig 1 temporarily fastens the wall sheet portion 9 to the wall portion 4B. The procedure up to the temporary fastening will be described below. The lower corner portion 13A of the base portion 13 of the waterproof sheet installation auxiliary jig 1 is brought into contact with the boundary portion between the wall sheet portion 9 and the floor sheet portion 3A. The tip of the claw portion 16 is thrust into the upper portion 9B of the wall sheet portion 9. In this state, when the worker 1X presses the pushing portion 17, the first pressing member 11 transmits the pressing force transmitted from the pushing portion 17 to the lower portion 9A of the wall sheet portion 9. In addition, the second pressing member 12 transmits the pressing force transmitted from the pushing portion 17 to the upper portion 9B of the wall sheet portion 9. When the force pressing the pushing portion 17 is transmitted to the base portion 13, the first pressing portion 11A of the pressing portion 10 presses the lower portion 9A of the wall sheet portion 9 via the base portion 13. In addition, as the force pressing the push-in portion 17 is transmitted to the claw portion 16, the second pressing portion 12A of the pressing portion 10 presses the upper portion 9B of the wall sheet portion 9 so as to move the upper portion 9B of the wall sheet portion 9 away from the lower portion 9A. In this state, the wall sheet portion 9 is stretched so as to fit along the wall portion 4B.

[0030] As shown in FIG. 7, in the second step, the wall sheet portion 9 is fixed to the wall portion 4B. The wall sheet portion 9 is fixed by a fastener. Examples of the fastener include a screw, an adhesive, and a stapler. In this embodiment, the wall sheet portion 9 is fixed by a stapler gun 18. After the wall sheet portion 9 is fixed, the worker 1X may cut off the portion of the upper portion 9B of the wall sheet portion 9 that is hanging down and not in contact with the wall portion 4B. By the above-mentioned waterproof sheet installation method, the wall sheet portion 9 of the waterproof sheet 3 is attached to the wall 2.

[0031] The operation of this embodiment will now be described. The first pressing member 11 of the waterproof sheet installation auxiliary jig 1 is rotatably connected at its lower end portion 10A to the base portion 13 by a first hinge member 14. The second pressing member 12 is rotatably connected to the first pressing member 11 by a second hinge member 15. The first pressing member 11 is provided with a pressing portion 17 that presses the pressing portion 10 toward the waterproof sheet 3. The first pressing portion 11A of the first pressing member 11 indirectly presses the lower portion 9A of the wall sheet portion 9 via the base portion 13. The claw portions 16 of the second pressing portion 12A of the second pressing member 12 presses the upper portion 9B of the wall sheet portion 9.

[0032] Conventionally, a jig for installing a waterproof sheet 3 has not disclosed a technology for preventing the occurrence of wrinkles in the waterproof sheet 3 by stretching the waterproof sheet 3 when the waterproof sheet 3 is installed. In this regard, according to the present embodiment, by pressing the pressing portion 17, the pressing portion 10 presses the lower portion 9A and upper portion 9B of the wall sheet portion 9. As a result, the wall sheet portion 9 is stretched so as to fit along the wall portion 4B. This makes it possible to prevent the occurrence of wrinkles in the waterproof sheet 3.

[0033] The effects of this embodiment will be described. (1) The waterproof sheet installation auxiliary jig 1 is a waterproof sheet installation auxiliary jig that assists in the attachment work of attaching a waterproof sheet 3 to a wall 2. It is equipped with a pressing part 10 having a first pressing part 11A that directly or indirectly presses a lower part 9A of a wall sheet part 9 to be attached to a wall 2 in the waterproof sheet 3, and a second pressing part 12A that presses an upper part 9B of the wall sheet part 9. The second pressing part 12A has a claw part 16. The claw part 16 is configured to pierce the waterproof sheet 3. According to this configuration, the pressing part 10 presses the lower part 9A and the upper part 9B of the wall sheet part 9. This allows the pressing part 10 to stretch out the slack in the waterproof sheet 3. This makes it possible to suppress the occurrence of wrinkles in the waterproof sheet 3.

[0034] (2) The waterproof sheet installation auxiliary jig 1 further includes a base portion 13. The base portion 13 is rotatably connected to the lower end portion 10A of the pressing portion 10. According to this configuration, the pressing portion 10 is rotatably connected to the base portion 13. Therefore, the pressing portion 10 can be rotated so as to easily press the wall sheet portion 9.

[0035] (3) The lower end 10A of the pressing portion 10 is rotatably coupled to the base portion 13 by the first hinge member 14. According to this configuration, the lower end 10A of the pressing portion 10 is rotatably coupled to the base portion 13 by the first hinge member 14. Therefore, the pressing portion 10 can be rotated so as to easily press the wall sheet portion 9.

[0036] (4) The pressing unit 10 includes a first pressing member 11 and a second pressing member 12 provided with a claw portion 16. The second pressing member 12 is rotatably coupled to the first pressing member 11 by the second hinge member 15. According to this configuration, the second pressing member 12 is rotatably coupled to the first pressing member 11 by the second hinge member 15. Therefore, the pressing unit 10 can rotate the second pressing member 12 so as to easily pierce the claw portion 16 into the wall sheet portion 9.

[0037] (5) The pressing portion 10 of the waterproof sheet installation auxiliary jig 1 is provided with a pushing portion 17 that pushes the pressing portion 10 toward the waterproof sheet 3. According to this configuration, the pressing portion 10 can be pushed toward the waterproof sheet 3 by pressing the pushing portion 17. This allows the pressing portion 10 to efficiently stretch out the slack in the waterproof sheet 3. This makes it possible to suppress the occurrence of wrinkles in the waterproof sheet 3.

[0038] (6) The waterproof sheet installation method is a waterproof sheet installation method for attaching a waterproof sheet 3 to a wall 2. The waterproof sheet 3 has a wall sheet portion 9 that fits along a wall portion 4B rising from a floor 4A. The waterproof sheet installation method includes a first step of temporarily fastening the wall sheet portion 9 with a waterproof sheet installation auxiliary jig 1 in a state in which the wall sheet portion 9 is in contact with the wall portion 4B. The waterproof sheet installation method also includes a second step of fixing the wall sheet portion 9 to the wall portion 4B. According to this configuration, the wall sheet portion 9 can be temporarily fastened with the waterproof sheet installation auxiliary jig 1. Therefore, the wall sheet portion 9 can be fixed to the wall portion 4B in a state in which the waterproof sheet 3 is stretched out by the waterproof sheet installation auxiliary jig 1.

[0039] <Second embodiment> A waterproof sheet installation auxiliary jig 1 according to a second embodiment will be described with reference to Fig. 8. In this embodiment, components common to the first embodiment are given the same reference numerals as those in the first embodiment. Descriptions of overlapping components will be omitted.

[0040] As shown in FIG. 8, the waterproof sheet installation auxiliary jig 1 of this embodiment further includes a support member 19 that supports the pressing part 10. The support member 19 has a first end 19A that directly or indirectly contacts the balcony floor 4A, and a second end 19B that contacts the pressing part 10. Specifically, the first end 19A of the support member 19 directly contacts the balcony floor 4A. The first end 19A may directly contact the base part 13. In this case, the first end 19A indirectly contacts the balcony floor 4A. The second end 19B of the support member 19 is rotatably connected to the back part 11B of the first pressing member 11 by the third hinge member 20. The support member 19 of this embodiment is made of an iron plate.

[0041] According to the configuration of this embodiment, the pressing portion 10 can be supported by the support member 19. Therefore, the state of the pressing portion 10 that stretches out the slack in the waterproof sheet 3 can be easily maintained.

[0042] <Modification> The above-mentioned embodiments are examples of possible forms of the waterproof sheet installation auxiliary jig 1 and the waterproof sheet installation method, and are not intended to limit the forms. The waterproof sheet installation auxiliary jig 1 and the waterproof sheet installation method may take forms different from those exemplified in the above-mentioned embodiments. One example is a form in which part of the configuration of the embodiment is replaced, changed, or omitted, or a form in which a new configuration is added to the embodiment. An example of a modified example of the embodiment is shown below.

[0043] <First Modification> As shown in FIG. 9, the first pressing portion 11A of the first pressing member 11 may directly press the lower portion 9A of the wall sheet portion 9 that is attached to the wall 2 in the waterproof sheet 3. A folded portion 21 may be connected to the lower end portion 10A of the pressing portion 10. In this modified example, the folded portion 21 is connected to the lower end portion 10A. The folded portion 21 in this modified example is formed integrally with the first pressing member 11. The folded portion 21 may be formed by a member separate from the first pressing member 11. The folded portion 21 extends flatly from the lower end portion 10A of the pressing portion 10 along the balcony floor 4A.

[0044] According to this configuration, the lower portion 9A of the wall sheet portion 9 can be directly pressed by the first pressing member 11. Therefore, the first pressing member 11 and the second pressing member 12 can suppress the occurrence of wrinkles in the waterproof sheet 3.

[0045] <Second Modification> As shown in FIG. 10 and FIG. 11, the pressing portion 10 may be formed by a leaf spring 22. Specifically, the first pressing member 11 and the second pressing member 12 of the first embodiment are integrally formed by the leaf spring 22. The leaf spring folded portion 23 may be connected to the lower end portion 10A of the pressing portion 10 of the leaf spring 22. In this modification, the leaf spring folded portion 23 is connected to the lower end portion 10A of the pressing portion 10 of the leaf spring 22. The leaf spring folded portion 23 of this modification is formed integrally with the leaf spring 22. The leaf spring folded portion 23 may be formed by a member different from the leaf spring 22. The leaf spring folded portion 23 extends flatly from the lower end portion 10A of the pressing portion 10 of the leaf spring 22 along the balcony floor 4A.

[0046] The worker 1X (not shown) presses the back portion 22A of the leaf spring 22 to stretch the wall sheet portion 9 along the wall portion 4B. The lower end portion 10A of the leaf spring 22 transmits the pressing force transmitted from the back portion 22A to the lower portion 9A of the wall sheet portion 9. As a result, the first pressing portion 11A of the leaf spring 22 presses the lower portion 9A of the wall sheet portion 9. In addition, the claw portion 16 of the leaf spring 22 transmits the pressing force transmitted from the back portion 22A to the upper portion 9B of the wall sheet portion 9. As a result, the claw portion 16 of the leaf spring 22 presses the upper portion 9B of the wall sheet portion 9 so as to move the upper portion 9B of the wall sheet portion 9 away from the lower portion 9A. In this state, the wall sheet portion 9 is stretched along the wall portion 4B.

[0047] According to this configuration, the pressing portion 10 formed by the leaf spring 22 presses the lower portion 9A and the upper portion 9B of the wall sheet portion 9. This allows the pressing portion 10 to straighten out the slack in the waterproof sheet 3. This makes it possible to prevent the waterproof sheet 3 from wrinkling.

[0048] This specification discloses the following techniques. [Appendix 1] This is a waterproof sheet installation auxiliary tool that assists in the work of attaching a waterproof sheet to a wall. The waterproof sheet installation auxiliary tool is equipped with a pressing part having a first pressing part that directly or indirectly presses the lower part of the wall sheet part of the waterproof sheet to be attached to the wall, and a second pressing part that presses the upper part of the wall sheet part. The second pressing part has a claw part. The claw part is configured to pierce the waterproof sheet.

[0049] [Appendix 2] The waterproof sheet installation auxiliary tool of appendix 1 further comprises a base portion. The base portion is rotatably coupled to a lower end portion of the pressing portion.

[0050] [Appendix 3] In the waterproof sheet installation auxiliary jig of Appendix 2, the lower end of the pressing portion is rotatably connected to the base portion by a first hinge member.

[0051] [Appendix 4] In the waterproof sheet installation auxiliary tool of Appendix 1, the pressing portion includes a first pressing member and a second pressing member on which the claw portion is provided. The second pressing member is rotatably connected to the first pressing member by a second hinge member.

[0052] [Appendix 5] In the waterproof sheet installation auxiliary jig of Appendix 1, the pressing portion is constituted by a leaf spring.

[0053] [Appendix 6] In the waterproof sheet installation auxiliary jig of Appendix 1, the pressing portion is provided with a pressing portion that presses the pressing portion toward the waterproof sheet.

[0054] [Appendix 7] The waterproof sheet installation auxiliary tool of Appendix 1 further includes a support member for supporting the pressing portion. The support member has a first end portion contacting the floor or the base portion and a second end portion contacting the pressing portion.

[0055] [Appendix 8] A waterproof sheet installation method for attaching a waterproof sheet to a wall, the waterproof sheet having a wall sheet portion that fits along a wall portion rising from a floor, comprising: a first step of temporarily fastening the wall sheet portion by a waterproof sheet installation auxiliary tool described in any one of Supplementary Note 1 to Supplementary Note 7 in a state in which the wall sheet portion is in contact with the wall portion; and a second step of fixing the wall sheet portion to the wall portion. [Explanation of symbols]

[0056] 1...waterproof sheet installation auxiliary jig, 2...wall, 3...waterproof sheet, 4B...wall portion, wall sheet portion 9, lower portion 9A, upper portion 9B, 10...pressing portion, 10A...lower end portion, 11...first pressing member, 11A...first pressing portion, 12...second pressing member, 12A...second pressing portion, 13...base portion, 14...first hinge member, 15...second hinge member, 16...claw portion, 17...pressing portion, 19...support member, 19A...first end portion, 19B...second end portion, 22...leaf spring.

Claims

1. A waterproof sheet installation auxiliary tool that assists in the installation work of attaching a waterproof sheet to a wall, The waterproof sheet is provided with a pressing portion having a first pressing portion that directly or indirectly presses a lower portion of a wall sheet portion attached to the wall, and a second pressing portion that presses an upper portion of the wall sheet portion, The second pressing portion has a claw portion, The claw portion is configured to penetrate the waterproof sheet, The pressing portion includes a first pressing member and a second pressing member on which the claw portion is provided, The second pressing member is rotatably connected to the first pressing member by a hinge member. Waterproof sheet installation aid.

2. A waterproof sheet installation auxiliary tool that assists in the installation work of attaching a waterproof sheet to a wall, The waterproof sheet is provided with a pressing portion having a first pressing portion that directly or indirectly presses a lower portion of a wall sheet portion attached to the wall, and a second pressing portion that presses an upper portion of the wall sheet portion, The second pressing portion has a claw portion, The claw portion is configured to penetrate the waterproof sheet, The pressing portion is constituted by a leaf spring. Waterproof sheet installation aid.

3. Further comprising a base portion, The base portion is rotatably coupled to a lower end portion of the pressing portion. A waterproof sheet installation auxiliary tool according to claim 1.

4. The lower end of the pressing portion is rotatably coupled to the base portion by a hinge member separate from the hinge member. A waterproof sheet installation auxiliary tool according to claim 3.

5. The pressing portion is provided with a pressing portion that presses the pressing portion toward the waterproof sheet. A waterproof sheet installation auxiliary tool according to claim 1.

6. A support member for supporting the pressing portion is further provided, The support member has a first end that directly or indirectly contacts a floor and a second end that contacts the pressing portion. A waterproof sheet installation auxiliary tool according to claim 1.

7. A waterproof sheet installation method for attaching a waterproof sheet to a wall, comprising: The waterproof sheet has a wall sheet portion that fits along a wall portion rising from the floor, A first step of temporarily fastening the wall sheet portion by a waterproof sheet installation auxiliary tool according to any one of claims 1 to 6 in a state in which the wall sheet portion is in contact with the wall portion; A second step of fixing the wall sheet portion to the wall portion. How to install a waterproof sheet.

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