JP4750643B2 - Waterproof tape and waterproof construction structure - Google Patents

Description

  The present invention relates to a waterproof tape and a waterproof construction structure using the waterproof tape.

  For example, when forming a balcony overhanging on the outer wall of a house, among the handrail walls provided on the three sides surrounding the balcony, the ends of the two handrail walls on both sides are butted against the outer wall.

  In this way, when the end of the wall member such as a handrail wall is abutted and connected to the wall surface of the outer wall, the waterproofing stretched on the wall surface is ensured to ensure the waterproof property between the outer wall surface and the end of the wall member. A waterproof construction is performed by overlapping ends of a waterproof sheet stretched between a sheet and a wall member, and attaching a waterproof tape to the overlap portion (see, for example, Patent Document 1).

  FIG. 5 shows an example of the waterproof construction at the end of the outer wall surface 5 and the wall member 6, and the upper end surface of the wall member 6 is attached to one side edge of the waterproof sheet 7 as shown in FIG. A pair of cuts 15 are made at regular intervals with the width dimension, and another waterproof sheet 8 is cut into an L shape, and oblique cuts 16 are made in the corners. Then, as shown in FIG. 5B, the waterproof sheet 7 is stretched from the upper end surface of the wall member 6 to both side surfaces, the edge of the waterproof sheet 7 is folded to the front side by the cuts 15, and the bent piece 7 a is folded to the outer wall surface 5. To stretch. Further, as shown in FIG. 5C, the waterproof sheet 8 is stretched on the outer wall surface 5, the edge of the waterproof sheet 8 is folded to the front side by the cuts 16, and the folded piece 8 a is placed on the wall member 6 from the top of the waterproof sheet 7. The end portion of the waterproof sheet 8 is overlapped on the end portion of the prevention sheet 7. Thereafter, the waterproof tape A provided with an adhesive layer on the back surface is used, and the waterproof tape A is attached to the waterproof sheet 7 over the folded piece 8a of the waterproof sheet 8 overlapped with the waterproof sheet 7. , 8 are connected to each other, and the waterproofness of the overlap portion is secured.

At this time, as the waterproof tape A, a rectangular tape as shown in FIG. 6A is used. As shown in FIG. 6B, one edge 1b of the waterproof tape A is connected in the longitudinal direction. While being bent into a letter shape, it is affixed to a portion from the upper end surface of the wall member 6 to both side surfaces, and the edge 1a on the outer wall surface 5 side of the waterproof tape A is bent so as to rise to the front side. The part 1a is attached to the surface of the waterproof sheet 8 stretched on the outer wall surface 5. Thus, by sticking waterproof tape A over the four surfaces from the upper end surface of the wall member 6 and both side surfaces to the location of the outer wall surface 5, the outer wall surface 5 and the end of the wall member 6 are connected. It is possible to obtain a high waterproof property.
Japanese Patent No. 3655370

  As described above, when the waterproof tape A is applied over the four surfaces from the upper end surface and the side surface of the wall member 6 to the location of the outer wall surface 5, it is necessary to bend the waterproof tape A three-dimensionally along mutually perpendicular surfaces. There is. And when bending the waterproof tape A in this way, the center part of the edge part 1a of the side stuck to the location of the outer wall surface 5 among the waterproof tapes A will be extended greatly.

  However, even if a waterproof tape A made of a material that expands and contracts is used, it is difficult to greatly extend the central portion of one edge 1a of the waterproof tape A formed in a rectangular shape. In particular, since the central portion of the edge 1a of the waterproof tape A is greatly stretched, the degree of expansion differs greatly between the central portion and portions on both sides thereof. There is a problem that the waterproof tape A is likely to be cracked in the central portion that is easily generated and has a high degree of extension, and the waterproof performance may be deteriorated.

  The present invention has been made in view of the above points, and an object thereof is to provide a waterproof tape that can be easily stretched and pasted without causing wrinkles or cracks. It is another object of the present invention to provide a waterproof construction structure that can be easily constructed using this waterproof tape without deteriorating the waterproof performance.

  In the waterproof tape according to claim 1 of the present invention, the adhesive layer 2 is formed on the back surface of the substantially rectangular sheet material 1 that is stretchable, and at the substantially central portion of one side edge of the longitudinal side of the sheet material 1, The concave curved portion 3 is formed by cutting out into a substantially arc shape.

  According to the present invention, one side edge of the longitudinal side of the sheet material 1 is stretched so that the arc-shaped concave curved portion 3 is substantially linear, and the difference in the degree of expansion is reduced. The sheet material 1 can be easily stretched without causing wrinkles or cracks, and the waterproof tape A can be easily bent and pasted in three dimensions.

  Further, the invention of claim 2 is that in claim 1, the sides of the concave curved portion 3 on both sides of the concave curved portion 3 are inclined so that the sheet material 1 reaches the end on the long side. It is characterized by being formed so as to be narrow.

  According to the present invention, the portions on both sides of the concave curved portion 3 of the sheet material 1 are formed wide, and this portion can be easily stretched and pasted.

  The waterproof construction structure according to claim 3 of the present invention is arranged such that the end of the wall member 6 is abutted against the outer wall surface 5 of the house, the waterproof sheet 7 is stretched from the upper end surface to the side surface of the wall member 6, and the outer wall surface 5. The other waterproof sheet 8 is pasted, and the end portions of the waterproof sheet 7 stretched on the wall member 6 and the waterproof sheet 8 stretched on the outer wall surface 5 are overlapped with each other. , The waterproof sheets 7 and 8 are connected to each other and waterproofed between the overlaps by sticking the waterproof tape A so as to cover the four surfaces from the upper end surface and both side surfaces of the wall member 6 to the location of the outer wall surface 5. At this time, the waterproof tape A according to claim 1 or 2 is used, the edge on the side where the concave curved portion 3 is not formed is bent in a U-shape in the longitudinal direction, and the both sides from the upper end surface of the wall member 6 are formed. On the side The sheet material 1 is pasted with the adhesive layer 2 and the edge on the side where the concave curved portion 3 of the sheet material 1 is formed in a state where the concave curved portion 3 is stretched is attached to the wall member 6 side. The bent portion is bent so as to rise up with respect to the edge portion, and the bent portion is attached to the outer wall surface 5 with the adhesive layer 2.

  According to the present invention, the waterproof construction can be easily performed using the waterproof tape A that can be easily bent three-dimensionally without deteriorating the waterproof performance.

  In the waterproof construction structure according to claim 4 of the present invention, the end of the wall member 6 is disposed in contact with the outer wall surface 5 of the house, the waterproof sheet 7 is stretched from the upper end surface to the side surface of the wall member 6, and the outer wall surface 5. The other waterproof sheet 8 is affixed, the ends of the waterproof sheet 7 stretched on the wall member 6 and the waterproof sheet 8 stretched on the outer wall surface 5 are overlapped, and the overlapping portions of the waterproof sheets 7 and 8 are overlapped. In the above, by attaching the waterproof tape A so as to cover three surfaces from the upper end surface and the side surface of the wall member 6 to the location of the outer wall surface 5, the waterproof sheets 7 and 8 are connected to each other and waterproofing between the overlaps is performed. The waterproof tape A according to claim 1 or 2 is used, and the edge on the side where the concave curved portion 3 is not formed is bent in an L-shape in the longitudinal direction, and one side surface from the upper end surface of the wall member 6 In place Then, the sheet material 1 is pasted with the adhesive layer 2 and the edge on the side where the concave curved portion 3 of the sheet material 1 is formed in a state where the concave curved portion 3 is stretched is attached to the wall member 6. The bent portion is bent so as to be raised with respect to the portion, and the bent portion is attached to the outer wall surface 5 with the adhesive layer 2.

  According to the present invention, the waterproof construction can be easily performed using the waterproof tape A that can be easily bent three-dimensionally without deteriorating the waterproof performance.

  According to the present invention, the sheet material 1 can be easily stretched without causing wrinkles or cracks, and the waterproof tape A can be easily bent and pasted in three dimensions. Using this waterproof tape A, waterproof construction can be easily performed without deterioration of waterproof performance.

  Hereinafter, the best mode for carrying out the present invention will be described.

  As shown in FIG. 1B, the waterproof tape A is formed by providing an adhesive layer 2 coated with an adhesive on the entire back surface of the sheet material 1, and is peeled off on the entire surface of the adhesive layer 2. A flexible release sheet 17 is attached. The sheet material 1 is formed to be stretchable by an elastic material such as butyl rubber.

  Further, as shown in FIG. 1 (a), the sheet material 1 is formed in a substantially rectangular shape (substantially strip-shaped), and has a substantially circular shape at a substantially central portion of one side edge portion on the long side. A concave curved portion 3 cut out in an arc shape is formed. The concave curved portion 3 is provided in a range of about 1/5 to 1/2 of the entire length in the longitudinal direction of the sheet material 1, and the notch depth of the concave curved portion 3 is the width dimension of the sheet material 1. Is set in the range of 1/5 to 1/2. The substantially arc shape of the concave curved portion 3 may be a smooth curve as shown in FIG. 1A, or may be formed in a polygonal shape. Further, the side of the sheet material 1 on which the concave curved portion 3 is formed is notched obliquely from both sides of the concave curved portion 3 to the end on each short side to form an inclined side 4. Accordingly, the width dimension of the sheet material 1 is formed so that the portions on both sides of the concave curved portion 3 are the widest and gradually become narrower until reaching the end portion on the short side.

  Here, as shown in FIG.1 (c), said release sheet 17 is the release sheet 17a affixed in the edge part 1a which is a half of the sheet material 1 in the side in which the concave curved part 3 was formed. And a release sheet 17b that is pasted at the edge 1b that is substantially half of the side where the concave curved portion 3 is not formed.

  Next, the outer wall surface 5 and the wall member 6 are connected when the end of the wall member 6 such as a handrail wall is abutted and connected to the outer wall surface 5 using the waterproof tape A formed as described above. The waterproof construction between the ends will be described.

  First, as shown in FIG. 5A described above, a pair of cuts 15 are made at one side edge of the waterproof sheet 7 at regular intervals with the width of the upper end surface of the wall member 6, and the other waterproof sheet 8 is attached. Cut into an L shape and make an oblique cut 16 in the corner. As the waterproof sheets 7 and 8, those having moisture permeability and waterproof properties are used. Next, as shown in FIG. 5B, the waterproof sheet 7 is stretched from the upper end surface of the wall member 6 to both side surfaces. At this time, the end edge of the waterproof sheet 7 is bent to the front side by the notch 15, and the bent piece 7 a is stretched on the outer wall surface 5, thereby stretching the waterproof sheet 7 from the wall member 6 to the outer wall surface 5. Further, as shown in FIG. 5C described above, the waterproof sheet 8 is stretched on the outer wall surface 5, the edge of the waterproof sheet 8 is folded to the front side by the cuts 16, and the bent piece 8 a is removed from the top of the waterproof sheet 7. The wall member 6 is stretched on the upper end surface and one side surface. Further, if necessary, another waterproof sheet 8 cut into an L shape is used, and the waterproof sheet 8 is stretched on the outer wall surface 5 and the edge of the waterproof sheet 8 is folded to the front side by a cut 16 so as to be bent. 8a is stretched from the top of the waterproof sheet 7 to the upper end surface of the wall member 6 and the other side surface. In this way, the waterproof sheet 8 is stretched so as to extend from the outer wall surface 5 to the wall member 6, and the end of the waterproof sheet 8 is overlapped on the end of the waterproof sheet 7.

  Thereafter, the waterproof tape A is attached to the waterproof sheet 7 from the folded piece 8 a at the end of the waterproof sheet 8 overlapped on the waterproof sheet 7 by the adhesive layer 2. In this way, by attaching the waterproof tape A over the waterproof sheet 7 over the end of the waterproof sheet 8, the overlapping portions of the waterproof sheets 7 and 8 are connected and fixed, and water enters through the gaps between the overlapping portions. It is possible to prevent waterproofing and to obtain waterproofness. Here, since the end of the cut 15 of the waterproof sheet 7 and the end of the cut 16 of the prevention sheet 8 are located at the boundary between the outer wall surface 5 and the butted end of the wall member 6, It is necessary to cover the end with the waterproof tape A to ensure waterproofness, and the waterproof tape A is pasted from the position from the upper end surface to the side surface of the wall member 6 to the position of the outer wall surface 5.

  2 and 3 show a procedure for attaching the waterproof tape A. FIG. First, as shown in FIG. 3A, the waterproof tape A is bent so that the sheet material 1 is inside at the boundary between the release sheets 17a and 17b, and the edge on the side where the concave curved portion 3 is not formed. The release sheet 17b attached to 1b is peeled off as shown in FIG. 3B to expose the adhesive layer 2 at the edge 1b. Then, as shown in FIG. 2 (a), the edge 1b of the sheet material 1 is attached to the location of the upper end surface of the wall member 6 with the adhesive layer 2, and the sheet material 1 is bent into a U-shape. As described above, the edge portion 1 b of the sheet material 1 is attached to the side surface portions on both sides of the wall member 6 with the adhesive layer 2. Next, the release sheet 17a affixed to the edge 1a of the sheet material 1 is peeled off, and the edge 1a of the sheet material 1 is raised while stretching the concave curved portion 3 at the center of the sheet material 1 to both sides. The edge part 1a of the sheet | seat material 1 is affixed on the outer wall surface 5 with the adhesion layer 2 like 2 (c).

  In this way, the waterproof tape A is applied over the four surfaces perpendicular to each other from the upper end surface and both side surfaces of the wall member 6 to the outer wall surface 5, and the waterproof tape A is bent three-dimensionally. There is a need. And when bending the sheet | seat material 1 of the waterproof tape A in this way, it is necessary to extend | stretch the center part of the edge part 1a of the side stuck to the location of the outer wall surface 5 among the sheet | seat materials 1, Since the central portion of the side edge portion is formed as an arc-shaped concave curved portion 3, the arc-shaped concave curved portion 3 can be stretched so as to be substantially linear as shown in FIG. The difference in the degree of expansion between the central portion of the sheet material 1 and both sides thereof can be reduced. For this reason, no wrinkles will occur due to the difference in the degree of expansion, and there will be no occurrence of cracks due to partial expansion without any wrinkles or cracks. The sheet material 1 can be easily stretched, and the waterproof tape A can be easily bent and pasted in a three-dimensional manner. In particular, since the inclined sides 4 are formed on both sides of the concave curved portion 3 and the portions on both sides of the concave curved portion 3 of the sheet material 1 are formed to be wide, this portion can be easily stretched to extend the sheet material 1. Can be bent more easily in three dimensions.

  In the embodiment of FIG. 2 described above, the waterproof tape A is pasted over the four surfaces from the upper end surface of the wall member 6 and the side surfaces on both sides to the location of the outer wall surface 5, but as in the embodiment of FIG. In addition, the waterproof tape A may be applied over three surfaces perpendicular to each other from the upper end surface and one side surface of the wall member 6 to the location of the outer wall surface 5. In this case, as in FIGS. 3A and 3B, the waterproof tape A is bent and the release sheet 17b is peeled off, and the waterproof tape A is bent into an L shape and stretched from the upper end surface to the side surface of the wall member 6. The edge portion 1b of the sheet material 1 is attached to the waterproof sheets 7 and 8 with the adhesive layer 2, and then the release sheet 17a attached to the edge portion 1a of the sheet material 1 is peeled off. While extending the concave curved portion 3 to both sides, the edge 1a of the sheet material 1 is raised, and the edge 1a of the raised sheet material 1 is placed on the waterproof sheet 8 stretched on the outer wall surface 5 by the adhesive layer 2. It is something to paste.

  In this way, the waterproof tape A is applied over three surfaces perpendicular to each other from the upper end surface and one side surface of the wall member 6 to the location of the outer wall surface 5, and the waterproof tape A is bent three-dimensionally. There is a need. And when bending the waterproofing tape A in this way, it is necessary to greatly extend the central part of the edge part of the waterproofing tape A on the side to be attached to the location of the outer wall surface 5 as described above. Since the central portion of the side edge portion is formed as an arc-shaped concave curved portion 3, as shown in FIG. 4, the arc-shaped concave curved portion 3 can be stretched so as to be substantially linear. The difference in the degree of expansion between the central portion of the material 1 and both sides thereof is reduced. For this reason, no wrinkles will occur due to the difference in the degree of expansion, and there will be no occurrence of cracks due to partial expansion without any wrinkles or cracks. The sheet material 1 can be easily stretched, and the waterproof tape A can be easily bent and pasted in a three-dimensional manner.

  In this way, after the waterproof tape A is applied at a location between the upper end surface of the wall member 6 and the one side surface, the waterproof tape A is similarly applied at a location between the upper end surface of the wall member 6 and the other side surface. Further, by attaching a long waterproof tape (not shown) to the overlapping portions of the waterproof sheets 7 and 8 on the side surfaces on both sides of the wall member 6, the upper end surface and both side surfaces of the wall member 6 are The waterproof construction is performed.

  Then, as shown in FIGS. 2 and 4, the waterproof sheets 7 and 8 are stretched on the wall member 6 and the outer wall surface 5, and the waterproof tape A is applied to the overlapping portions of the waterproof sheets 7 and 8 to perform the waterproof construction. After that, by attaching a decorative panel or headboard to the wall member 6 from above the waterproof sheet 7 and attaching an outer wall material to the outer wall surface 5 from above the waterproof sheet 8, the construction on the balcony portion of the outer wall is completed. It is something that can be done.

An example of embodiment of the waterproofing tape which concerns on this invention is shown, (a) is a front view, (b) is a side view, (c) is a rear view. An example of embodiment of the waterproof construction which concerns on this invention is shown, (a) (b) (c) is a perspective view, respectively. The waterproof tape in the case of waterproof construction same as the above is shown, (a) (b) is a perspective view, respectively. It is a perspective view which shows another example of embodiment of the waterproof construction which concerns on this invention. The construction for attaching the waterproof sheet is shown, and (a), (b) and (c) are perspective views, respectively. A conventional example is shown, (a) is a front view of a waterproof tape, (b) is a perspective view of a waterproof construction structure.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Sheet material 2 Adhesive layer 3 Concave curved part 4 Inclined side 5 Outer wall surface 6 Wall member 7 Waterproof sheet 8 Waterproof sheet

Claims (4)

  An adhesive layer is formed on the back surface of a substantially rectangular sheet material that can be expanded and contracted, and a concave curved portion that is cut out in a substantially arc shape is formed at a substantially central portion of one side edge of the longitudinal side of the sheet material. Waterproof tape characterized by that.   The sheet material is formed so as to narrow toward the end on the long side by inclining the side on which the concave curved portion is formed on both sides of the concave curved portion. Item 2. The waterproof tape according to Item 1.   Place the end of the wall member against the outer wall surface of the house, place a waterproof sheet from the upper end surface to the side surface of the wall member, and paste another waterproof sheet on the outer wall surface. The ends of the stretched waterproof sheet are overlapped with each other, and on the overlapped portion of the waterproof sheet, a waterproof tape is applied so as to cover the upper surface of the wall member and the four sides from the side surfaces on both sides to the outer wall surface. When the waterproof sheets are connected to each other and waterproofed between the overlaps, the waterproof tape is the one according to claim 1 or 2, and the edge on the side where the concave curved portion is not formed is formed in the longitudinal direction. The sheet material is affixed with an adhesive layer from the upper end surface of the wall member to the side surfaces on both sides, and the concave portion of the sheet material is Bend the edge on the side where the curved portion is formed so that it rises with respect to the edge on the side that is attached to the location of the wall member, and attach the bent portion to the location of the outer wall with an adhesive layer Waterproof construction structure characterized by comprising. Place the end of the wall member against the outer wall surface of the house, place a waterproof sheet from the upper end surface to the side surface of the wall member, and paste another waterproof sheet on the outer wall surface. The ends of the stretched waterproof sheet are overlapped with each other, and on the overlapped portion of the waterproof sheet, a waterproof tape is applied so as to cover the upper surface of the wall member and the three surfaces from one side surface to the outer wall surface. When the waterproof sheets are connected to each other and waterproofed between the overlaps, the waterproof tape is the one according to claim 1 or 2, and the edge on the side where the concave curved portion is not formed is formed in the longitudinal direction. The sheet material is bent in an L-shape and pasted from the upper end surface of the wall member to the one side surface with an adhesive layer, and the concave portion of the sheet material is Bend the edge on the side where the curved portion is formed so that it rises with respect to the edge on the side that is attached to the location of the wall member, and attach the bent portion to the location of the outer wall with an adhesive layer Waterproof construction structure characterized by comprising.

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