Waterproof sheet construction auxiliary jig and waterproof sheet construction method

Abstract

To provide a waterproof sheet construction auxiliary jig and a waterproof sheet construction method capable of suppressing generation of a wrinkle in construction of a waterproof sheet.SOLUTION: A waterproof sheet construction auxiliary jig 20 assists attachment work of attaching a waterproof sheet 6 to a wall 10. The waterproof sheet construction auxiliary jig 20 includes: a handle part 21; and an engagement part 30 that engages with a wall sheet part 6B attached to the wall 10 in the waterproof sheet 6. The handle part 21 includes: a base part 22 including a contact part 23 that contacts with a floor 2 connecting to the wall 10; and a lever part 28 extending from the base part 22. The engagement part 30 includes: an attachment part rotatably attached to the base part 22; an extension part extending from the attachment part; and a claw part 36 provided in the extension part and configured to be stuck to an upper part of the wall sheet part 6B.SELECTED DRAWING: Figure 7

Description

Technical Field

[0001] The present disclosure relates to a waterproof sheet construction assisting jig and a waterproof sheet construction method.

Background Art

[0002] On the roof of a building, a jig for stretching a waterproof sheet on a wall rising from the floor is known. The jig is used to stretch the waterproof sheet so as to suppress the generation of wrinkles. For example, Patent Document 1 discloses a waterproof sheet construction assisting jig (in Patent Document 1, a construction jig). The waterproof sheet construction assisting jig of this document includes a base portion and a pressing portion provided so as to rotate with respect to the base portion. The pressing portion has an elastic body. The pressing portion suppresses the generation of wrinkles after pressing by pressing the waterproof sheet against the wall via the elastic body.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] By the way, regarding suppressing the generation of wrinkles in the waterproof sheet when constructing the waterproof sheet, there is room for improvement in the waterproof sheet construction assisting jig and the waterproof sheet construction method.

Means for Solving the Problems

[0005] (1) The waterproof sheet construction assisting jig for solving the above problems is a waterproof sheet construction assisting jig for assisting the pasting operation of pasting a waterproof sheet on a wall, and includes a handle portion and an engaging portion provided on the handle portion and engaging with a wall sheet portion to be pasted on the wall in the waterproof sheet. The handle portion has a base portion including a contact portion contacting a floor connected to the wall, and a lever portion extending from the base portion. The engaging portion has a mounting portion rotatably attached to the base portion, an extension portion extending from the mounting portion, and a claw portion provided on the extension portion and piercing the upper portion of the wall sheet portion.

[0006] According to this configuration, when a force is applied to the lever portion, the handle portion rotates with the contact portion as a fulcrum, and the engaging portion moves upward. As a result, the waterproof sheet engaged with the engaging portion stretches, so that wrinkles of the waterproof sheet pasted on the wall can be reduced.

[0007] (2) In the waterproof sheet construction assisting jig of the above (1), the waterproof sheet construction assisting jig further includes a biasing portion that biases the engaging portion so that the engaging portion moves away from the lever portion. According to this configuration, since the engaging portion is biased with respect to the lever portion, the engaging portion can be strongly engaged with the wall sheet portion.

[0008] (3) In the waterproof sheet construction assisting jig of the above (2), the waterproof sheet construction assisting jig further includes a first restricting portion that restricts the position of the engaging portion with respect to the lever portion so that an angle between the lever portion and the engaging portion is equal to or less than a first angle, and the first restricting portion is configured to be able to release the position restriction of the engaging portion with respect to the lever portion.

[0009] According to this configuration, the position of the engaging portion can be maintained in a state where the angle between the lever portion and the engaging portion is equal to or less than the first angle. Therefore, it becomes difficult for the claw portion of the engaging portion to contact the wall sheet portion. Since it is less likely that the claw portion of the engaging portion is caught on the wall sheet portion due to the carelessness of the operator, it becomes easier to dispose the waterproof sheet construction assisting jig at a position separated from the wall by a predetermined distance.

[0010] (4) In the waterproof sheet construction auxiliary jig of (3) above, a second restricting portion is further provided for restricting the position of the engaging portion with respect to the lever portion so that the angle between the lever portion and the engaging portion is equal to or less than a second angle greater than the first angle. According to this configuration, the force applied to the lever portion can be easily transmitted to the engaging portion.

[0011] (5) In the waterproof sheet construction auxiliary jig according to any one of (2) to (4) above, in the temporarily fixed state of the waterproof sheet construction auxiliary jig, a support member is further provided between the wall and the lever portion so that the distance between the wall and the lever portion does not become shorter than a predetermined distance. The temporarily fixed state is a state in which the claw portion is inserted into the wall sheet portion of the waterproof sheet and the wall sheet portion is pulled. According to this configuration, since the support member maintains the distance between the wall and the lever portion at a predetermined distance, the temporarily fixed state of the waterproof sheet construction auxiliary jig can be maintained.

[0012] (6) In the waterproof sheet construction auxiliary jig of (5) above, the support member is rotatably attached to the lever portion or detachably attached to the lever portion. According to this configuration, since the support member is attached to the lever portion, loss of the support member can be suppressed.

[0013] (7) In the waterproof sheet construction auxiliary jig according to any one of (1) to (6) above, the contact portion of the base portion is configured as a curved surface. According to this configuration, it is possible to suppress the use marks of the waterproof sheet construction auxiliary jig from remaining on the floor sheet portion.

[0014] (8) A waterproof sheet construction method for solving the problem is a waterproof sheet construction method for attaching a waterproof sheet to a wall. In a state where a wall sheet portion, which is a part of the waterproof sheet, is brought into contact with a wall rising from the floor, a first step of temporarily fixing the wall sheet portion by the waterproof sheet construction auxiliary jig according to any one of (1) to (7) above, and a second step of fixing the wall sheet portion to the wall are included.

[0015] According to this configuration, in the construction of attaching a waterproof sheet to a wall, since a waterproof sheet construction auxiliary jig is used, the generation of wrinkles can be suppressed when attaching the waterproof sheet to the wall.

Effect of the Invention

[0016] According to the waterproof sheet construction auxiliary jig of the present disclosure, when constructing the waterproof sheet, the generation of wrinkles in the waterproof sheet can be suppressed. According to the waterproof sheet construction method of the present disclosure, when constructing the waterproof sheet, the generation of wrinkles in the waterproof sheet can be suppressed.

Brief Description of the Drawings

[0017]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Figure 7

Figure 8

Figure 9

Modes for Carrying Out the Invention

[0018] With reference to FIGS. 1 to 8, the waterproof sheet construction auxiliary jig 20 and the waterproof sheet construction method according to the present embodiment will be described. The waterproof sheet construction auxiliary jig 20 is a jig for assisting the pasting operation of pasting the waterproof sheet 6 on the wall 10.

[0019] In the construction of the waterproof sheet 6, the wall 10 on which the waterproof sheet construction auxiliary jig 20 is used is a wall arranged to rise from the floor 2 of the building. The wall 10 on which the waterproof sheet 6 is constructed is an outdoor wall. Examples of the outdoor wall 10 on which the waterproof sheet 6 is stretched include the wall of a veranda, the wall of a balcony, and the parapet on the roof. In the present embodiment, the wall is a wall rising from the floor 2 of the balcony 1.

[0020] In the present embodiment, the floor 2 of the balcony 1 is composed of the floor unit 3. The floor unit 3 is arranged on the lower frame at the lower part of the balcony 1. The floor unit 3 may be arranged on the lower frame via the concrete member 7. The floor unit 3 includes the gradient heat insulating material 4, the steel plate 5 arranged on the gradient heat insulating material 4, and the waterproof sheet 6 pasted on the steel plate 5. The upper surface of the gradient heat insulating material 4 is inclined with respect to the horizontal. The waterproof sheet 6 is extended so as to be able to cover the lower part of the wall 10 of the balcony 1. That is, the waterproof sheet 6 includes the floor sheet part 6A and the wall sheet part 6B. In a single continuous waterproof sheet 6, the floor sheet part 6A and the wall sheet part 6B are provided. The wall sheet part 6B protrudes from the gradient heat insulating material 4.

[0021] The wall 10 includes the frame 11, the plywood 12, and the exterior material 13. The exterior material 13 is attached to the frame 11 by attaching fittings.

[0022] The exterior finishing material 13 is disposed on the outer surface 11A and the inner surface 11B of the frame 11. In FIGS. 5 to 8, the description of the exterior finishing material 13 on the outer surface 11A is omitted. The inner surface 11B of the frame 11 indicates the surface facing the building body. The outer surface 11A of the frame 11 indicates the opposite side of the inner surface 11B. The exterior finishing material 13 covers the upper region from a position at a predetermined height on the inner surface 11B of the frame 11. On the inner surface 11B of the frame 11, a plywood 12 is provided in the region from the position at the predetermined height to the lower end. The plywood 12 is located below the exterior finishing material 13. The plywood 12 is fixed to the frame 11 by metal fittings, screws or bolts. In the vertical direction, a water drainage material and a sealing material may be provided between the plywood 12 and the exterior finishing material 13.

[0023] As described above, the waterproof sheet 6 includes a wall sheet portion 6B and a floor sheet portion 6A. The wall sheet portion 6B is the portion of the waterproof sheet 6 that is attached to the wall 10. The floor sheet portion 6A is the portion of the waterproof sheet 6 that is attached to the floor 2. In the present embodiment, as described above, the floor sheet portion 6A is provided on the gradient heat insulating material 4 of the floor unit 3 constituting the floor 2 via a steel plate 5.

[0024] [Waterproof Sheet Installation Auxiliary Fixture] As shown in FIGS. 1 and 2, the waterproof sheet installation auxiliary fixture 20 assists the attachment operation of attaching the waterproof sheet 6 to the wall 10.

[0025] As shown in FIG. 3, the waterproof sheet installation auxiliary fixture 20 includes a handle portion 21 and an engaging portion 30 provided on the handle portion 21. The waterproof sheet installation auxiliary fixture 20 may further include a biasing portion 40. The waterproof sheet installation auxiliary fixture 20 may further include a first restricting portion 41 and a second restricting portion 51. The waterproof sheet installation auxiliary fixture 20 may further include a support member 60.

[0026] [Handle Portion] The handle portion 21 has a base portion 22 and a lever portion 28 extending from the base portion 22. A force is applied to the handle portion 21. The handle portion 21 transmits the force applied to the handle portion 21 to the engaging portion 30. The engaging portion 30 moves based on the force applied to the handle portion 21.

[0027] The base portion 22 includes a contact portion 23. The base portion 22 further includes a first portion 22A and a second portion 22B. The first portion 22A is a portion to which the lower end of the lever portion 28 is attached. The second portion 22B is a portion to which the attachment portion 31 of the engaging portion 30 is attached. The contact portion 23 is a portion that contacts the floor 2 connected to the wall 10. The first portion 22A and the second portion 22B are located above the contact portion 23. The second portion 22B is disposed at a position horizontally separated from the first portion 22A. The second portion 22B may be at a position higher than the first portion 22A or at a position lower than the first portion 22A. Due to such an arrangement relationship among the first portion 22A, the second portion 22B, and the contact portion 23, when the first portion 22A descends with the contact portion 23 in contact with the floor 2, the second portion 22B ascends.

[0028] A specific example of the base portion 22 will be described. The base portion 22 includes a bottom portion 25 including the contact portion 23 and an intersecting extension portion 26 extending upward from a first end 25A of the bottom portion 25. The intersecting extension portion 26 rises so as to intersect the bottom portion 25. The bottom surface of the bottom portion 25 is configured to be flat. The engaging portion 30 is rotatably provided at the upper end of the intersecting extension portion 26 via a hinge 39. The lever portion 28 is connected to a second end 25B of the bottom portion 25 opposite to the first end 25A. In this example, the second end 25B of the bottom portion 25 corresponds to the first portion 22A. The upper end of the intersecting extension portion 26 corresponds to the second portion 22B.

[0029] The contact portion 23 is provided near the second end 25B on the bottom surface of the bottom portion 25. The contact portion 23 contacts the floor sheet portion 6A. Further, the contact portion 23 contacts the floor sheet portion 6A when the wall sheet portion 6B is pulled by the waterproof sheet construction auxiliary jig 20. Specifically, the contact portion 23 contacts the floor sheet portion 6A when the handle portion 21 is tilted by applying a force to the lever when the engaging portion 30 is engaged with the wall sheet portion 6B. At this time, the floor sheet portion 6A is pressed by the contact portion 23. Therefore, the contact portion 23 is configured not to sink into the waterproof sheet 6.

[0030] Specifically, as shown in FIG. 4, the contact portion 23 is configured as a curved surface. In one example, the contact portion 23 is configured as a surface along an arc. In the contact portion 23, a chamfered portion 24 is provided at the corner between the curved surface of the contact portion 23 and the side surface of the contact portion 23.

[0031] The lever portion 28 has a gripping portion 29 to be gripped. The gripping portion 29 is made of plastic, rubber, or cloth. The gripping portion 29 may be configured in a shape that is easy to grip. The lever portion 28 is provided near the tip end portion away from the base portion 22. In the present embodiment, the lever portion 28 is configured to be longer than the engaging portion 30.

[0032] [Engaging portion] The engaging portion 30 engages with the wall sheet portion 6B. The engaging portion 30 has a mounting portion 31, an extension portion 32 extending from the mounting portion 31, and a claw portion 36.

[0033] The mounting portion 31 is a portion rotatably mounted on the base portion 22. In the present embodiment, the mounting portion 31 is rotatably mounted on the intersecting extension portion 26 of the base portion 22 via a hinge 39. The mounting portion 31 may be rotatably mounted on the intersecting extension portion 26 of the base portion 22 via a shaft and a bearing.

[0034] The extension part 32 has a first extension part 33 that extends straight and a second extension part 34 that extends from the tip of the first extension part 33. The second extension part 34 extends away from the lever part 28 as it goes toward the tip of the second extension part 34. The second extension part 34 is configured to gradually become thinner toward the tip. A claw part 36 is provided at the tip of the second extension part 34.

[0035] The claw part 36 is provided on the extension part 32. In one example, the claw part 36 is provided at the tip of the extension part 32. The claw part 36 is configured to engage with the wall sheet part 6B.

[0036] The claw part 36 is configured to pierce the upper part of the wall sheet part 6B that is attached to the wall 10 in the waterproof sheet 6. Specifically, the claw part 36 has a plurality of protrusions 36A with pointed tips.

[0037] [Biasing part] The biasing part 40 biases the engaging part 30 so that the engaging part 30 moves away from the lever part 28. In one example, the biasing part 40 is disposed between the lower part of the lever part 28 and the middle part of the engaging part 30. The biasing part 40 is constituted by a coil spring. The biasing part 40 may be constituted by a torsion spring. The biasing part 40 may be constituted by a leaf spring.

[0038] [First restricting part] The first restricting part 41 restricts the position of the engaging part 30 with respect to the lever part 28 so that the angle A between the lever part 28 and the engaging part 30 is equal to or less than a first angle A1.

[0039] Even when the position of the engaging part 30 with respect to the lever part 28 is restricted by the first restricting part 41, the biasing part 40 biases the engaging part 30 so that the engaging part 30 moves away from the lever part 28. For this reason, in the state where the position of the engaging part 30 with respect to the lever part 28 is restricted by the first restricting part 41, the angle A between the lever part 28 and the engaging part 30 is maintained at the first angle A1.

[0040] The first regulating part 41 is configured to be able to release the position regulation of the engaging part 30 with respect to the lever part 28. Specifically, the first regulating part 41 includes a hook 42 and a hook engaging part 43 on which the hook 42 is hung. One of the hook 42 and the hook engaging part 43 is provided on the lever part 28. The other of the hook 42 and the hook engaging part 43 is provided on the engaging part 30.

[0041] [Second regulating part] The second regulating part 51 regulates the position of the engaging part 30 with respect to the lever part 28 so that the angle A between the lever part 28 and the engaging part 30 is equal to or less than a second angle A2. The second angle A2 is larger than the first angle A1. The second angle A2 is smaller than a third angle. The third angle is the angle between the lever part 28 and the engaging part 30 when the biasing part 40 is most extended in the case where the second regulating part 51 is not provided. According to the second regulating part 51, in a state where the regulation by the first regulating part 41 is released, the angle A between the lever part 28 and the engaging part 30 does not become larger than the second angle A2.

[0042] In one example, the second regulating part 51 is built into the hinge 39. The second regulating part 51 includes a sector plate 52 fixed to one rotating body of the hinge 39 and a pin 53 fixed to the other rotating body of the hinge 39. The rotation of the hinge 39 is regulated by the engagement of the sector plate 52 with the pin 53. Thereby, the angle A between the lever part 28 and the engaging part 30 is limited to an angle equal to or less than the second angle A2.

[0043] [Supporting member] The supporting member 60 is a member disposed between the wall 10 and the lever part 28. Specifically, the supporting member 60 is disposed between the wall 10 and the lever part 28 so that the distance between the wall 10 and the lever part 28 does not become shorter than a predetermined distance (hereinafter referred to as the predetermined distance between the wall and the lever) in the temporarily fixed state of the waterproof sheet construction auxiliary jig 20. The temporarily fixed state is a state in which the claw part 36 is inserted into the wall sheet part 6B of the waterproof sheet 6 and the wall sheet part 6B is pulled by the waterproof sheet construction auxiliary jig 20.

[0044] In one example, the support member 60 is rotatably attached to the lever portion 28. The support member 60 has a contact end portion 61 that contacts the wall 10. Specifically, one end of the support member 60 is rotatably attached to the lever portion 28. A contact end portion 61 is provided at the other end of the support member 60. The contact end portion 61 has an elastic friction portion 62. The elastic friction portion 62 is made of rubber. In this example, the predetermined distance between the wall and the lever is defined as the distance between the rotation axis portion of the lever portion 28 and the wall 10.

[0045] <Waterproof sheet construction method> With reference to FIGS. 5 to 8, a waterproof sheet construction method for attaching the wall sheet portion 6B of the waterproof sheet 6 to the wall 10 will be described.

[0046] The waterproof sheet construction method is a construction method for attaching the waterproof sheet 6 to the wall 10. The waterproof sheet construction method includes a first step and a second step. In the first step, in a state where the wall sheet portion 6B is brought into contact with the wall 10, the wall sheet portion 6B is temporarily fixed by the waterproof sheet construction auxiliary jig 20. In the second step, the wall sheet portion 6B is fixed to the wall 10. In the second step, the wall sheet portion 6B is fixed to the wall sheet portion 6B with screws using a tacker 70.

[0047] In the first step, first, the wall sheet portion 6B of the waterproof sheet 6 is brought into contact with the wall 10 along the wall 10 of the balcony 1. Then, the wall sheet portion 6B is temporarily fixed by the waterproof sheet construction auxiliary jig.

[0048] Hereinafter, the procedure for temporary fixing using the waterproof sheet construction auxiliary jig 20 will be described. As shown in FIG. 5, in the first procedure, the waterproof sheet construction auxiliary jig 20 is disposed at a position separated by a predetermined distance from the boundary portion between the wall sheet portion 6B and the floor sheet portion 6A.

[0049] Next, as shown in FIG. 6, in the second procedure, the regulation by the first regulation portion 41 is released while the wall sheet portion 6B is pulled upward by hand. Then, the claw portion 36 of the engaging portion 30 pierces the upper portion of the wall sheet portion 6B by the force of the biasing portion 40.

[0050] Next, as shown in FIG. 7, in the third step, the lever portion 28 is pulled in a direction away from the wall 10 (hereinafter referred to as the first direction D1). Then, the handle portion 21 rotates with the contact portion 23 in contact with the floor sheet portion 6A as a fulcrum. At this time, the intersecting extension portion 26 of the base portion 22 rises, and the angle A between the lever portion 28 and the engaging portion 30 widens. When the lever portion 28 is further tilted, the angle A between the lever portion 28 and the engaging portion 30 is fixed to the second angle A2 by the second restricting portion 51. When the lever portion 28 is pulled in the first direction D1 in this state, further, the engaging portion 30 moves upward together with the intersecting extension portion 26. Then, the upper portion of the wall sheet portion 6B is pulled up by the engaging portion 30. As a result, the wall sheet portion 6B is sufficiently extended.

[0051] At this time, a restoring force that attempts to return to the original shape is generated in the wall sheet portion 6B against the extension. Therefore, the wall sheet portion 6B pulls the engaging portion 30 downward. When the force applied to the lever portion 28 is relaxed, the lever portion 28 is pulled in a direction approaching the wall 10 (hereinafter referred to as the second direction) by the restoring force of the wall sheet portion 6B.

[0052] Therefore, as shown in FIG. 8, in the fourth step, in order to resist the restoring force of the wall sheet portion 6B, a support member 60 is disposed between the wall 10 and the lever portion 28. The support member 60 is disposed between the wall 10 and the lever portion 28 in a state where the wall sheet portion 6B is sufficiently extended. Then, the contact end portion 61 of the support member 60 is pressed against the wall 10 so that the elastic friction portion 62 of the contact end portion 61 deforms. As a result, the position of the lever portion 28 with respect to the wall 10 is fixed. For this reason, even when the force pulling the lever portion 28 is relaxed, the wall sheet portion 6B is maintained in a state of being stretched along the wall 10 in a sufficiently extended state. The operator repeats this operation at predetermined intervals in the wall sheet portion 6B. In this way, the wall sheet portion 6B is stretched on the wall 10 with few wrinkles.

[0053] Thereafter, in the second step, the operator fixes the wall sheet portion 6B to the wall 10 with screws by operating the tacker 70.

[0054] [Operation of this Embodiment] The waterproof sheet construction assisting jig 20 includes a handle portion 21 and an engaging portion 30 that engages with the wall sheet portion 6B of the waterproof sheet 6. The handle portion 21 has a base portion 22 including a contact portion 23 that contacts the floor 2, and a lever portion 28 extending from the base portion 22. The engaging portion 30 has a claw portion 36 that pierces the upper portion of the wall sheet portion 6B.

[0055] According to this configuration, when a force is applied to the lever portion 28, the handle portion 21 rotates with the contact portion 23 as a fulcrum, and the engaging portion 30 moves upward. As a result, the waterproof sheet 6 engaged with the engaging portion 30 can be stretched. Therefore, wrinkles in the waterproof sheet 6 stretched on the wall 10 can be reduced. Further, the engaging portion 30 is rotatably provided on the base portion 22. For this reason, when the engaging portion 30 moves upward, the claw portion 36 is difficult to come off from the waterproof sheet 6. Therefore, according to such a structure, the rework when the claw portion 36 comes off from the waterproof sheet 6 can be reduced.

[0056] [Effect of this Embodiment] (1) The waterproof sheet construction assisting jig 20 includes a handle portion 21 and an engaging portion 30 that engages with the wall sheet portion 6B of the waterproof sheet 6. The handle portion 21 has a base portion 22 including a contact portion 23 that contacts the floor sheet portion 6A, and a lever portion 28 extending from the base portion 22. The engaging portion 30 has a mounting portion 31, an extension portion 32 extending from the mounting portion 31, and a claw portion 36 that pierces the upper portion of the wall sheet portion 6B.

[0057] According to this configuration, when a force is applied to the lever portion 28, the handle portion 21 rotates with the contact portion 23 as a fulcrum, and the engaging portion 30 moves upward. As a result, the waterproof sheet 6 engaged with the engaging portion 30 stretches, so that wrinkles in the waterproof sheet 6 stretched on the wall 10 can be reduced.

[0058] (2) The waterproof sheet construction auxiliary jig 20 further includes a biasing portion 40 that biases the engaging portion 30 so that the engaging portion 30 moves away from the lever portion 28. According to this configuration, since the engaging portion 30 is biased with respect to the lever portion 28, the engaging portion 30 can be strongly engaged with the wall sheet portion 6B.

[0059] (3) The waterproof sheet construction auxiliary jig 20 may further include a first restricting portion 41. The first restricting portion 41 restricts the position of the engaging portion 30 with respect to the lever portion 28 such that the angle A between the lever portion 28 and the engaging portion 30 is equal to or less than a first angle A1. The first restricting portion 41 is configured to be able to release the position restriction of the engaging portion 30 with respect to the lever portion 28.

[0060] According to this configuration, the position of the engaging portion 30 can be maintained in a state where the angle A between the lever portion 28 and the engaging portion 30 is equal to or less than the first angle A1. For this reason, it becomes difficult for the claw portion 36 of the engaging portion 30 to contact the wall sheet portion 6B. Since it is less likely that the claw portion 36 of the engaging portion 30 gets caught on the wall sheet portion 6B due to the carelessness of the operator, it becomes easier to arrange the waterproof sheet construction auxiliary jig 20 at a position separated from the wall 10 by a predetermined distance.

[0061] (4) The waterproof sheet construction auxiliary jig 20 may further include a second restricting portion 51. The second restricting portion 51 restricts the position of the engaging portion 30 with respect to the lever portion 28 such that the angle A between the lever portion 28 and the engaging portion 30 is equal to or less than a second angle A2 that is greater than the first angle A1. According to this configuration, the force applied to the lever portion 28 can be easily transmitted to the engaging portion 30.

[0062] (5) The waterproof sheet construction auxiliary jig 20 may further include a support member 60. The support member 60 is disposed between the wall 10 and the lever portion 28 so that the distance between the wall 10 and the lever portion 28 does not become shorter than a predetermined distance in the temporarily fixed state of the waterproof sheet construction auxiliary jig 20. According to this configuration, since the support member 60 maintains the distance between the wall 10 and the lever portion 28 at the predetermined distance, the temporarily fixed state of the waterproof sheet construction auxiliary jig 20 can be maintained.

[0063] (6) The support member 60 is rotatably attached to the lever portion 28 or detachably attached to the lever portion 28. According to this configuration, since the support member 60 is attached to the lever portion 28, loss of the support member 60 can be suppressed.

[0064] (7) In the waterproof sheet construction auxiliary jig 20, the contact portion 23 of the base portion 22 is configured as a curved surface. According to this configuration, it is possible to suppress the traces of the use of the waterproof sheet construction auxiliary jig 20 remaining on the floor sheet portion 6A.

[0065] (8) The waterproof sheet construction method includes a first step and a second step of fixing the wall sheet portion 6B to the wall 10. In the first step, with the wall sheet portion 6B, which is a part of the waterproof sheet 6, in contact with the wall 10 rising from the floor 2, the wall sheet portion 6B is temporarily fixed by the waterproof sheet construction auxiliary jig 20. According to this configuration, in the construction of attaching the waterproof sheet 6 to the wall 10, since the waterproof sheet construction auxiliary jig 20 is used, the generation of wrinkles can be suppressed when the waterproof sheet 6 is stretched on the wall 10.

[0066] <Modification Example> The above embodiment is an exemplification of the forms that the waterproof sheet construction auxiliary jig 20 and the waterproof sheet construction method can take, and is not intended to limit the forms. The waterproof sheet construction auxiliary jig 20 and the waterproof sheet construction method can take forms different from those exemplified in the above embodiment. Examples thereof are forms in which a part of the configuration of the embodiment is replaced, changed, omitted, or a new configuration is added to the embodiment. Modification examples of the embodiment are shown below.

[0067] FIG. 9 shows a modification example of the base portion 22. In this modification example, the contact portion 23 is provided at the lowest point of the base portion 22. Even when the waterproof sheet construction auxiliary jig 20 has a base portion 22 with such a structure, the effects of the embodiment can be achieved.

[0068] ·In the above-described embodiment, the biasing portion 40 is disposed between the lower portion of the lever portion 28 and the intermediate portion of the engaging portion 30. However, the biasing portion 40 may be provided on the hinge 39. The biasing portion 40 of the hinge 39 biases the hinge 39 to open. Even with such a structure, the engaging portion 30 can be biased by the biasing portion 40 so that the engaging portion 30 moves away from the lever portion 28.

[0069] ·In the above-described embodiment, the second restricting portion 51 is built into the hinge 39. However, the second restricting portion 51 may be provided outside the hinge 39. For example, the second restricting portion 51 may be configured as a stopper protruding from the intersecting extension portion 26. The stopper is configured such that when the angle A between the lever portion 28 and the engaging portion 30 becomes the second angle A2, the engaging portion 30 abuts against the stopper. Thereby, the angle A between the lever portion 28 and the engaging portion 30 is restricted to an angle equal to or less than the second angle A2.

[0070] ·In the above-described embodiment, the support member 60 is rotatably attached to the lever portion 28. However, the support member 60 may be detachably attached to the lever portion 28. For example, the support member 60 may be housed in a case provided on the lever portion 28.

[0071] ·In the present embodiment, when stretching the waterproof sheet 6 of the floor unit 3 on the wall 10 of the balcony 1, the waterproof sheet construction auxiliary jig 20 is used. However, the form of the waterproof sheet 6 to which the waterproof sheet construction auxiliary jig 20 can be applied is not limited to this. For example, when laying the waterproof sheet 6 from the existing floor 2 to the wall 10, the waterproof sheet construction auxiliary jig 20 can also be applied.

[0072] ·Even when stretching the waterproof sheet 6 only on the wall 10, the waterproof sheet construction auxiliary jig 20 can be applied. In this case, the lower end of the waterproof sheet 6 is fixed to the wall 10. Thereafter, the waterproof sheet construction auxiliary jig 20 can be used to pull the waterproof sheet 6 upward.

[0073] ·In the waterproof sheet construction auxiliary jig 20, the biasing portion 40 may be omitted. In this case, the operator engages the claw portion 36 of the engaging portion 30 with the waterproof sheet 6.

[0074] This specification discloses the following technology. [Appendix 1] Appendix 1 is a waterproof sheet construction assisting jig for assisting the pasting operation of pasting a waterproof sheet on a wall. The waterproof sheet construction assisting jig includes a handle portion and an engaging portion that engages with a wall sheet portion that is pasted on the wall in the waterproof sheet. The handle portion has a base portion including a contact portion that contacts a floor connected to the wall, and a lever portion extending from the base portion. The engaging portion has a mounting portion rotatably attached to the base portion, an extension portion extending from the mounting portion, and a claw portion provided on the extension portion and piercing the upper portion of the wall sheet portion.

[0075] [Appendix 2] In the waterproof sheet construction assisting jig according to Appendix 1, the waterproof sheet construction assisting jig further includes a biasing portion that biases the engaging portion so that the engaging portion moves away from the lever portion.

[0076] [Appendix 3] In the waterproof sheet construction assisting jig according to Appendix 2, the waterproof sheet construction assisting jig further includes a first restricting portion that restricts the position of the engaging portion with respect to the lever portion so that an angle between the lever portion and the engaging portion is equal to or less than a first angle. The first restricting portion is configured to be able to release the position restriction of the engaging portion with respect to the lever portion.

[0077] [Appendix 4] In the waterproof sheet construction assisting jig according to Appendix 3, the waterproof sheet construction assisting jig further includes a second restricting portion that restricts the position of the engaging portion with respect to the lever portion so that an angle between the lever portion and the engaging portion is equal to or less than a second angle that is greater than the first angle.

[0078] [Appendix 5] In the waterproof sheet construction auxiliary jig described in Supplementary Note 2, in the temporarily fixed state of the waterproof sheet construction auxiliary jig, a support member is further provided which is disposed between the wall and the lever portion so that the distance between the wall and the lever portion does not become shorter than a predetermined distance. The temporarily fixed state is a state in which the claw portion is inserted into the wall sheet portion of the waterproof sheet and the wall sheet portion is pulled.

[0079] [Supplementary Note 6] In the waterproof sheet construction auxiliary jig described in Supplementary Note 5, the support member is rotatably attached to the lever portion or detachably attached to the lever portion.

[0080] [Supplementary Note 7] In the waterproof sheet construction auxiliary jig described in Supplementary Note 1, the contact portion of the base portion is configured as a curved surface.

[0081] [Supplementary Note 8] Supplementary Note 8 is a waterproof sheet construction method for attaching a waterproof sheet to a wall. The waterproof sheet construction method includes a first step and a second step. In the first step, in a state where a wall sheet portion, which is a part of the waterproof sheet, is brought into contact with a wall rising from the floor, the wall sheet portion is temporarily fixed by the waterproof sheet construction auxiliary jig described in any one of Supplementary Notes 1 to 7. In the second step, the wall sheet portion is fixed to the wall.

Explanation of Reference Numerals

[0082] A... Angle, A1... First angle, A2... Second angle, 1... Balcony, 2... Floor, 6... Waterproof sheet, 6B... Wall sheet portion, 10... Wall, 20... Waterproof sheet construction auxiliary jig, 21... Handle portion, 22... Base portion, 23... Contact portion, 28... Lever portion, 30... Engagement portion, 31... Attachment portion, 32... Extension portion, 36... Claw portion, 40... Biasing portion, 41... First regulating portion, 51... Second regulating portion, 60... Support member.

Claims

1. A waterproof sheet construction assisting jig for assisting in the pasting operation of pasting a waterproof sheet on a wall, comprising: a handle portion and an engaging portion provided on the handle portion and engaging with a wall sheet portion that is pasted on the wall in the waterproof sheet; the handle portion has a base portion including a contact portion that contacts a floor connected to the wall, and a lever portion extending from the base portion; the engaging portion has a mounting portion rotatably mounted on the base portion, an extension portion extending from the mounting portion, and a claw portion provided on the extension portion and piercing the upper portion of the wall sheet portion; A waterproof sheet construction assisting jig.

2. Further comprising a biasing portion that biases the engaging portion so that the engaging portion moves away from the lever portion; The waterproof sheet construction assisting jig according to Claim 1.

3. Further comprising a first restricting portion that restricts the position of the engaging portion with respect to the lever portion so that the angle between the lever portion and the engaging portion is equal to or less than a first angle, the first restricting portion is configured to be able to release the position restriction of the engaging portion with respect to the lever portion; The waterproof sheet construction assisting jig according to Claim 2.

4. Further comprising a second restricting portion that restricts the position of the engaging portion with respect to the lever portion so that the angle between the lever portion and the engaging portion is greater than the first angle and equal to or less than a second angle; The waterproof sheet construction assisting jig according to Claim 3.

5. In the temporarily fixed state of the waterproof sheet construction assisting jig, further comprising a support member disposed between the wall and the lever portion so that the distance between the wall and the lever portion does not become shorter than a predetermined distance, and the temporarily fixed state is a state in which the claw portion pierces the wall sheet portion of the waterproof sheet and the wall sheet portion is pulled; The waterproof sheet construction assisting jig according to Claim 2.

6. The support member is rotatably mounted on the lever portion or detachably mounted on the lever portion; The waterproof sheet construction assisting jig according to Claim 5.

7. The contact portion of the base portion is configured as a curved surface; The waterproof sheet construction assisting jig according to Claim 1.

8. A waterproof sheet construction method for pasting a waterproof sheet on a wall, comprising: a first step of temporarily fixing the wall sheet portion by using the waterproof sheet construction assisting jig according to any one of Claims 1 to 7 in a state where the wall sheet portion, which is a part of the waterproof sheet, is in contact with a wall rising from the floor; a second step of fixing the wall sheet portion to the wall. Waterproof sheet construction method.

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