JP2006219845A - Dry waterproof member - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a dry waterproof member capable of surely and very easily carrying out waterproof construction work of a joint section between a horizontal or a sloped down floor roof and an upper floor roof at a low manufacturing cost. <P>SOLUTION: The dry waterproof member is so constituted that a synthetic resin sheet is connected to the upper end section of a flexible sheet, and since it is waterproofed between a ridge section of the down floor roof of a building and a wall surface on which the ridge section is abutted, in the dry type waterproof member inserted from an opening formed between the ridge section and the lower end section of an external wall panel provided to the wall surface, the synthetic resin sheet has a width wider than a width in the vertical direction of the opening, the upper end section of the synthetic resin sheet is folded, and it is characterized by having a fold so as to enable a bending piece having a width narrower than the width in the vertical direction of the opening to form. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a dry waterproof member for a building, and more particularly, to a dry waterproof member for waterproofing between a wall surface provided with a panel on a surface and a portion protruding from the wall surface. .

In conventional industrialized houses, pillars, outer wall panels, etc. are individually manufactured at the factory and assembled on site.
In such a house, as shown in FIG. 9, an entrance corner A and an exit corner B are formed at the junction between the horizontal or inclined lower floor roof of the building and the upper floor wall surface. The upper floor wall is usually provided with an outer wall panel, and in order to waterproof the joint, it is necessary to dispose a waterproof material continuous from the lower floor roof surface to the upper floor wall and the outer wall panel. .
Since the waterproof material is provided after the outer wall panel is pasted on site, the workability is very poor.

  Therefore, the present invention is for solving the above-mentioned problems of the prior art, and makes surely and extremely easily waterproofing a joint portion between a horizontal or inclined lower floor roof and an upper floor wall surface. Further, it is an object to provide a dry waterproof member that can be manufactured at low cost.

In order to solve the above-mentioned problems, the present inventors have found a solution as follows as a result of intensive studies.
That is, the dry waterproof member of the present invention is formed by bonding a synthetic resin sheet to the upper end portion of a flexible sheet, as defined in claim 1, and the ridge portion of the roof on the lower floor of the building and the ridge In order to waterproof between the wall surface with which the part abuts, a dry waterproof member inserted from an opening formed between the ridge part and a lower end part of an outer wall panel provided on the wall surface, The resin sheet has a width wider than the vertical width of the opening, and bends the upper end portion of the synthetic resin sheet so that a bent piece smaller than the vertical width of the opening can be formed. It is characterized by providing a crease.
Moreover, the present invention according to claim 2 is the dry waterproof member according to claim 1, wherein the synthetic resin sheet is formed as a band-shaped body having a U-shape, and the fold-like shape is used as the folding line. A fold-shaped crease is provided along the outer shape.
Further, according to a third aspect of the present invention, in the dry waterproof member according to the second aspect, a crease is provided in the vertical direction from the top of the U-shaped synthetic resin sheet.
Further, the present invention according to claim 4 is characterized in that, in the dry waterproof member according to claim 2 or 3, a folding line is provided in the horizontal direction below the top of the fold-shaped bending line. To do.
Further, the present invention according to claim 5 is the dry waterproof member according to claim 4, wherein the left and right side edges of the top of the fold-shaped synthetic resin sheet from the apex of the fold-shaped crease A V-shaped crease that extends upward is provided.
Further, the present invention described in claim 6 is the dry waterproof member according to claim 2 or 3, wherein the reverse V that expands downward from the left and right sides of the top of the fold-shaped crease It is characterized by providing a character-shaped crease.
Further, the present invention according to claim 7 is the dry waterproof member according to claim 4 or 6, wherein the horizontal fold line or the inverted V-shaped fold line is the fold-shaped fold line. It is characterized in that a crease is provided so as to expand toward the left and right side edges of the top portion of the synthetic resin sheet from the point where it intersects with.

According to the present invention, by folding the upper end portion of the synthetic resin sheet along the folding line, the vertical width of the bent piece is formed between the ridge portion and the lower end portion of the outer wall panel provided on the wall surface. Since it becomes narrower than the width | variety of the perpendicular direction of the opening formed in between, it can insert easily. Therefore, the portion of the wide synthetic resin sheet following the bent piece can be easily inserted.
In addition, if the synthetic resin sheet is formed as a U-shaped band-like body, and the fold line is formed along the U-shaped outer shape of the synthetic resin sheet, the fold-shaped fold line is provided. It becomes possible to work on the letter-shaped opening.
In addition, if a bending line is provided in the vertical direction from the top of the U-shaped synthetic resin sheet, the buckling strength of the synthetic resin sheet increases during construction, making it easy to insert between the outer wall and the outer wall panel. can do.
Also, by providing a horizontal folding line below the top of the U-shaped folding line, it becomes possible to bend the top of the synthetic resin sheet at an angle close to the vertical, and the lower end of the outer wall panel and the ridge The operation | work inserted in the clearance gap between can be made easy.
Further, by providing a V-shaped fold line that expands upward from the apex of the fold-shaped fold line toward the left and right side edges of the top of the fold-shaped synthetic resin sheet, the synthetic resin sheet When force is applied from both sides, the part surrounded by the V-shaped crease at the top of the fold-shaped crease is strengthened by the crease, and the lower end of the outer wall panel and the ridge The insertion work can be facilitated in the gap between them.
The top of the fold-shaped crease from the inverted V-shaped fold to the top by providing an inverted V-shaped fold that expands downward from the left and right sides of the top The inclined surfaces are formed on both the left and right sides so as to descend from the upper end of the plane toward the top of the synthetic resin sheet, and dry-type along the ridgeline where the inclined surfaces abut. If the waterproof member is inserted, the insertion work between the outer wall and the outer wall panel can be facilitated.
In addition, by providing a fold line so that the horizontal fold line or the inverted V-shaped fold line extends toward the left and right side edges of the top of the synthetic resin sheet from the point where it intersects the fold-shaped fold line When a force is applied from both sides of the synthetic resin sheet during insertion, a convex upper surface can be formed on the top of the synthetic resin sheet, and buckling can be prevented.
Further, by forming the folded piece by folding the upper end portion of the synthetic resin sheet to the outer wall panel side, the folded piece can be hooked between the outer wall panel and the outer wall, preventing water intrusion and being dry-type It is possible to prevent the waterproof member from coming off.

Next, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is an explanatory view showing an application site of the dry waterproof member of the present invention. FIG. 2 is a schematic cross-sectional view of FIG. As shown in the figure, the ridge 1 is brought into contact with the outer wall 2, and the outer wall 2 is provided with an outer wall panel 3 at a predetermined interval.
The dry waterproof member of the present invention is inserted through a gap indicated by diagonal lines in FIG. 1, that is, a gap between the ridge 1 and the lower end 3 a of the outer wall panel 3.
As shown in FIG. 3, the dry member 20 of the present invention has a U-shaped polypropylene sheet 5 attached to the upper end of the rubber sheet 4, and has a U-shape along the outer shape thereof. It is comprised by providing the crease 6. The illustrated rubber sheet 4 is shown in a folded state in order to show the polypropylene sheet 5 in an unfolded state.
The dry waterproof member 20 is gripped so that the crease 6 is folded at both ends of the polypropylene sheet 5 during construction. At this time, as shown in FIG. 4, the bent piece 5 a that is the upper portion of the polypropylene sheet 5 is bent toward the front side, and the vertical width of the opening between the ridge 1 and the lower end 3 a of the outer wall panel 3. It is narrower than that and can be easily inserted. In addition, the dry-type waterproof member 20 after insertion is shown in FIG.
In the present embodiment, a fold-like shape is provided as the folding line 6, but the vertical width of the polypropylene sheet 5 may be narrower than the vertical width of the opening. There is no particular limitation as long as it is possible. In the present invention, the U-shaped top portion includes a square shape and a rounded shape.

Next, another embodiment of the present invention will be described.
A dry waterproof member 20 shown in FIG. 6 is provided with a horizontal crease 7 below the top 6d of the fold-shaped crease 6 of the dry waterproof member 20 described with reference to FIG. The folding line 8 is provided in the vertical direction from the top 5d of the polypropylene sheet formed in the above.
When the folding sheet 6 is gripped from both ends of the polypropylene sheet 6 of the dry waterproof member 20 having the above-mentioned configuration, the fold-shaped bending line 6 and the horizontal bending line provided below the top part 6d are formed. 7, a surface is formed, and the bent piece 5a is bent at an angle close to the vertical with respect to this surface. Therefore, the top of the opening and the top of the bent piece 5a are easily aligned, and the insertion work is facilitated.

Next, another embodiment of the present invention will be described.
The dry waterproof member 20 shown in FIG. 7 is the same as the dry waterproof member 20 described in FIG. 3 so as to cross from the upper side of the fold-like crease 6 to both sides of the top portion 6d of the fold-like crease. In addition, V-shaped crease lines 9 and 9 that expand downward are provided. In addition, folding lines 10 and 10 are provided so as to expand toward both side edges of the top portion 5d of the letter-shaped polypropylene sheet extending from the intersection. Further, the crease 8 is provided in the vertical direction (the width direction of the polypropylene sheet 5) from the top 5d of the polypropylene sheet.
With the above configuration, when force is applied from both ends of the polypropylene sheet 6, the creases 9, 9 are folded in a mountain as shown in FIG. Standing surfaces 9a and 9a are formed. In addition, as shown in FIG. 5C, when folded at the folding lines 10 and 10, the top portion 6d of the polypropylene sheet descends from the standing surfaces 9a and 9a toward the top portion 6d. The inclined surfaces 10a and 10a are formed.
If it inserts into the opening between the lower end part 3a of the outer wall panel shown in FIG.1 and FIG.2 and the ridge part 1 from the bending piece 5a in said state, it will become easy to insert the dry-type waterproof member 20. FIG. Further, if the polypropylene sheet 5 is inserted so as to slide along the ridgeline with which the inclined surfaces 10a and 10a abut, the insertion work is facilitated.

Next, another embodiment of the present invention will be described.
The dry waterproof member 20 shown in FIG. 8 is the same as the dry waterproof member 20 described with reference to FIG. 7, but from the apex of the inverted V-shaped creases 9, 9 toward the left and right edges near the top 5 d of the polypropylene sheet. V-shaped fold lines 11, 11 are provided to expand. In the present embodiment, the folding lines 10 and 10 are provided from one end of the polypropylene sheet 5 to the other end.
With the above configuration, when a force is applied from both ends of the polypropylene sheet 6, the folding lines 10, 10 are folded at a valley to form an inclined part that rises toward the bending line 8 formed in the vertical direction. . Then, as shown in FIG. 5C, the fold-shaped crease 6 is valley-folded at the top portion 6d, and the inverted V-shaped crease 9 is mountain-folded to form a fold-like fold. In the top portion 6d of the line, a surface surrounded by the bent lines 9, 9, 6 (6d) is erected. And the inclination part which descend | falls to the front-end | tip of the letter-shaped polypropylene sheet 6 from the top part of this standing part is formed. If the polypropylene sheet 5 is inserted such that the inclined portion slides on the lower end portion 3a of the outer wall panel 3, the insertion work is facilitated.
Note that if the upper end portion of the polypropylene sheet is folded back to the outer wall panel side with a predetermined width to provide a folded piece, the folded piece can prevent water from entering between the wall surface and the outer wall panel. Moreover, the dry waterproof member can be locked by the folded piece. Although there is no restriction | limiting in particular about the folding width | variety of this folding piece, For example, it can be set as about 10 mm.

  In order to form the fold line, for example, the fold line forming part of the polypropylene sheet is continuously formed in a gap formed by a groove part formed on the surface of the rotating roller and a rotary blade having a blade edge immersed in the groove part. It is obtained by passing through.

  In order to attach the rubber sheet to the polypropylene sheet, it is preferable to join using a butyl pressure-sensitive adhesive excellent in waterproofness.

  In the said embodiment, although the polypropylene sheet was used as a synthetic resin sheet, if it is a synthetic resin sheet, it will not restrict | limit in particular. Moreover, in order to improve workability, it is preferable to use a synthetic resin sheet having transparency. In addition, when using a polypropylene sheet as a synthetic resin sheet, for example, a sheet formed into a uniform thickness in an unstretched state without orientation of a crystalline mixture having a propylene unit component of 50 mol% or more is used. It is preferable to do. The synthetic resin sheet preferably has a thickness of about 0.3 to 3.0 mm.

Moreover, in the said embodiment, although the rubber sheet was used as a flexible sheet | seat, it is not necessarily limited to this, For example, a vinyl chloride sheet etc. can be used.
In addition, when using a rubber sheet as a flexible sheet, it is preferable to use a blend rubber of ethylene / propylene rubber (EPDM) and butyl rubber, thereby providing excellent smoothness necessary as a waterproof sheet. A rubber sheet is obtained. Further, it is preferable that the rubber sheet is impregnated with a rubber paste and lined to be integrated with the rubber sheet. This is because the pulling cloth is also waterproof and becomes a dry waterproof member with high waterproofness. Furthermore, since the pulling cloth is impregnated with rubber paste, the pulling cloth itself is provided with adhesiveness, and the attaching operation to the construction site becomes easy. In addition, when the woven fabric is a polyester woven fabric, it is effective for heat resistance and does not change in dimensions even after curing at 100 ° C. for 1000 hours.

Explanatory drawing for demonstrating the application site | part of the dry-type waterproof member of this invention Cross-sectional schematic diagram The top view which shows one Embodiment of the dry-type waterproof member of this invention Schematic sectional view showing the deformation state in the same construction state Explanatory drawing which shows the state after construction of the embodiment The top view which shows other embodiment of the dry-type waterproof member of this invention (A) Top view (b) and (c) which show other embodiment of the dry-type waterproof member of this invention are explanatory drawings which show a construction state (A) Top view (b) and (c) which show other embodiment of the dry-type waterproof member of this invention are explanatory drawings which show a construction state Illustration of the entrance and exit corners of the building

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Building part 2 Outer wall 3 Outer wall panel 4 Rubber sheet 5 Polypropylene sheet 5a Bending piece (upper part)
5b Lower part 5c Adhesive allowance 6 Folding streaks
6d Top of the folding line 7 Horizontal bending line 8 Vertical bending line bending line 9 V-shaped bending line 10 Folding line 11 V-shaped bending line

Claims (7)

  A synthetic resin sheet is joined to the upper end of the flexible sheet, and in order to waterproof between the ridge of the roof on the lower floor of the building and the wall surface against which the ridge contacts, A dry waterproof member inserted through an opening formed between the lower end of an outer wall panel provided on the wall surface, wherein the synthetic resin sheet has a width wider than a vertical width of the opening. A dry waterproof member, wherein the upper end portion of the synthetic resin sheet is bent so that a bent piece narrower than the vertical width of the opening is formed.   The synthetic resin sheet is formed as a band-shaped body having a U-shape, and has a U-shaped crease as the crease along the outer shape of the U-shape. The dry waterproof member according to claim 1.   The dry waterproof member according to claim 2, wherein a crease is provided in a vertical direction from the top of the U-shaped synthetic resin sheet.   The dry waterproof member according to claim 2 or 3, wherein a fold line is provided in a horizontal direction below the top of the fold-shaped fold line.   A V-shaped fold line that expands upward is provided from the apex of the fold-shaped fold line toward the left and right side edges of the top of the fold-shaped synthetic resin sheet. The dry waterproof member according to claim 4.   The dry waterproof member according to claim 2 or 3, further comprising an inverted V-shaped crease that expands downward from both the left and right sides of the top of the fold-like crease.   The fold line is provided so that the horizontal fold line or the inverted V-shaped fold line expands toward the left and right side edges of the top of the synthetic resin sheet from the point where it intersects the fold-shaped fold line. The dry waterproof member according to claim 4 or 6, wherein

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