JP7350592B2 - Prop waterproof structure - Google Patents

Description

The present invention relates to a strut waterproof structure that waterproofs the surrounding area of a strut member that protrudes from an opening formed in an outdoor flat area.

Patent Document 1 discloses a waterproof structure for a column base. The waterproof structure of the column base is achieved by applying a sealant to the upper surface of the column base, and then applying a strip-shaped mounting sheet whose surface is at least made of synthetic resin such as polyvinyl chloride over the sealant. Attach the mounting sheet so that both ends overlap, and drive a fixing tool into at least the area where both ends of the mounting sheet overlap. In this waterproof structure, the upper end edge and the upper end edge of the attachment sheet are welded and attached so that they substantially coincide with each other, and further, the upper end edge portion of the attachment sheet and the waterproof member is caulked.

Japanese Patent Application Publication No. 10-212794

However, the above-mentioned conventional technology requires the above-mentioned welding installation work, and requires skill in waterproofing the column base.

In view of the above circumstances, it is an object of the present invention to provide a strut waterproof structure that allows waterproofing of the surrounding area of the strut member without requiring special skill.

In order to solve the above-mentioned problems, the waterproof strut structure of the present invention is a waterproof strut structure that waterproofs the surrounding area of a strut member protruding from an opening formed in an outdoor flat area,
a flat field side waterproof accessory having a flat field side seat part located on the upper surface of the flat field part around the pillar member and a pillar side sheet part covering the lower surface of the pillar member;
a secondary waterproof part that seals a boundary between the support-side sheet part and the surface of the support support member;
an upper waterproof accessory that covers the surface of the secondary waterproofing part so that the upper side is located;
a primary waterproof part that seals a boundary between the upper side of the upper waterproof accessory and the surface of the support member;
It is characterized by having the following.

With the above configuration, the boundary between the upper side of the upper waterproof accessory and the surface of the support member is sealed as a primary waterproofing part, and the border between the support sheet part of the flat-side waterproof accessory and the support member is sealed. The boundary with the surface is sealed as a secondary waterproof part. Since the standard members of the above-mentioned upper waterproofing accessory and the above-mentioned flat-side waterproofing accessory are used for the primary waterproofing and the secondary waterproofing, respectively, waterproofing of the surrounding area of the pillar member can be easily and accurately performed. In other words, waterproofing around the support member can be carried out without special skill.

An overlapping part may be formed on the lower side of the upper side of the upper waterproof accessory, which overlaps with the outer surface of the support column side sheet part. According to this, rainwater from above can flow off not on the outer surface of the support column side sheet portion but on the outer surface of the upper waterproof accessory.

A space between the overlapping portion of the upper waterproof accessory and the upper side may be formed in a stepped shape. According to this, for example, in arranging a presser metal object, which will be described later, the stepped portion can be used for positioning the presser metal object.

An elastic water stop portion may be provided between the secondary waterproof portion located on the outer surface side of the support column side sheet portion and the overlapping portion of the upper waterproof accessory. According to this, it is possible to suppress the intrusion of rainwater through the gap between the secondary waterproof part and the upper waterproof accessory.

A hem portion expanding diagonally downward is formed on the lower side of the upper waterproof accessory, and the hem portion may come into contact with or be close to the inner surface of a decorative cover member that covers the support member. According to this, rainwater coming in from the lower side of the decorative cover member due to wind blowing up can be deflected by the hem portion.

A notch may be formed in the hem. According to this, even if rainwater enters the upper side of the hem, the rainwater can flow downward from the notch.

A presser may be provided that presses a portion of the primary waterproof part located on the upper side of the upper waterproof accessory into pressure contact with the upper side of the upper waterproof accessory. According to this, by the pressure welding, it is possible to suppress the generation of a gap between the upper side of the upper waterproof accessory and the primary waterproof part, and also to connect the upper side of the upper waterproof accessory to the It can be brought into pressure contact with the surface of the secondary waterproof part or the above-mentioned support member.

According to the present invention, the boundary between the upper side of the upper waterproof accessory and the surface of the pillar member is sealed as a primary waterproofing part, and the surface of the pillar side sheet part of the flat-side waterproof accessory and the surface of the pillar member is sealed. The boundary between the two is sealed as a secondary waterproof part. Since two fixed-form members, the above-mentioned flat-side waterproofing accessory and the above-mentioned upper waterproofing accessory, are used for these primary waterproofing and secondary waterproofing, the waterproofing around the support pillar member can be easily and accurately carried out. This has the effect that it can be done.

FIG. 1 is a schematic vertical cross-sectional view showing a strut waterproof structure according to an embodiment. FIG. 2 is an explanatory diagram showing a construction process of the column waterproof structure shown in FIG. 1. FIG. FIG. 2 is an explanatory diagram showing a construction process of the column waterproof structure shown in FIG. 1. FIG. FIG. 2 is an explanatory diagram showing a construction process of the column waterproof structure shown in FIG. 1. FIG. FIG. 2 is an explanatory diagram showing a construction process of the column waterproof structure shown in FIG. 1. FIG.

Embodiments of the present invention will be described below based on the accompanying drawings.
The strut waterproof structure of this embodiment is applied, for example, to a strut member that supports a handrail placed on the periphery of a rooftop or the like. As shown in FIG. 1, this strut waterproof structure waterproofs the periphery of a strut member 82 that protrudes from an opening 81 formed in an outdoor flat area 80. The pillar member 82 is made of a plate material having a rectangular cross section, and a lower flange portion (not shown) is erected and supported on a beam of a building using bolts or the like. Further, the flat area 80 is configured with plywood, a sloped board, a waterproof base layer, and the like. Moreover, this strut waterproof structure is provided at a position below the fixing part 82a that fixes the handrail.

In the above-mentioned strut waterproof structure, the ground-side waterproof accessory 1 made of a weather-resistant sheet material is used. This level-side waterproof accessory 1 includes a substantially rectangular level-side seat part 1a located on the upper surface of the level area 80 around the pillar member 82, and a pillar-side seat part 1b covering the lower surface of the pillar member 82. have The column side seat portion 1b is formed into a flat square tube shape that matches the rectangular cross section of the column member 82.

A secondary waterproof tape section (secondary waterproof section) is placed at the boundary between the column side sheet section 1b and the surface of the column member 82 (hereinafter referred to as "secondary waterproof boundary") to seal this secondary waterproof boundary. )3 is provided. This secondary waterproof tape section 3 is made of, for example, butyl tape coated with an adhesive, and can be obtained by winding and pasting the butyl tape by an operator. Note that the top end (secondary waterproof boundary top end) of the support column side sheet portion 1b is set at a higher position than an overflow pipe (not shown). Further, the upper part of the support column side sheet portion 1b is adhered to the surface of the support column member 82 using an adhesive.

Furthermore, this strut waterproof structure includes an upper waterproof accessory 2. The upper waterproof accessory 2 is, for example, a molded product using ethylene propylene diene rubber (EPDM).

The upper waterproof accessory 2 is placed over the support member 82 such that the upper cylinder portion 21, which is the upper portion thereof, is located on the surface of the secondary waterproof tape portion 3 on the support member 82. . The upper cylindrical portion 21 is formed into a flat rectangular cylindrical shape that matches the rectangular cross section of the support member 82 . Further, below the upper cylinder part 21, a square cylinder-shaped central cylinder part (overlapping part) 22 is located around the upper part of the pillar-side seat part 1b. Further, the space between the central cylindrical portion (overlapping portion) 22 of the upper waterproof accessory 2 and the upper cylindrical portion 21 is formed in a stepped shape.

Further, a substantially quadrangular truncated pyramid-shaped hem portion 23 is formed on the lower side of the central cylindrical portion 22 . The hem portion 23 extends obliquely downward at the lower edge side of the upper waterproof accessory 2 and comes into contact with or approaches the inner surface of the decorative cover member 83 that covers the support member 82 .

In the hem portion 23, the four corner portions of the substantially quadrangular truncated pyramid shape are cut to a length of about 20 mm and widened to form a notch portion 23a at each corner portion (see FIG. 5). ).

Between the secondary waterproof tape part 3 located on the outer surface side of the pillar-side sheet part 1b and the central cylindrical part (overlapping part) 22 of the upper waterproof accessory 2, there is an elastic water-stopping material made of, for example, a foam material. A section 4 is provided.

Then, at the boundary between the upper part of the upper cylinder part 21 of the upper waterproof accessory 2 and the surface of the support column member 82 (hereinafter referred to as the primary waterproof boundary), the primary waterproof boundary is sealed, and the A primary waterproof tape section (primary waterproof section) 5 is provided as a layer outside the secondary waterproof tape section 3. The primary waterproof tape section 5 is made of, for example, butyl tape coated with an adhesive, and can be obtained by winding and pasting the butyl tape by an operator.

A presser metal fitting 6 that fits inside the decorative cover member 83 is provided on the outside of the primary waterproof tape portion 5 . This presser metal fitting 6 brings the primary waterproof tape portion 5 into pressure contact with the upper cylindrical portion 21 of the upper portion of the upper waterproof accessory 2 . The presser metal fitting 6 is a metal fitting consisting of a fastening part 63 located on the short side of the upper cylinder part 21 via a step part 62 (see FIG. 5) from a presser part 61 located on the long side of the upper cylinder part 21. By reversing the pair of metal fittings horizontally and bringing the ends of the fastening part 63 and the holding part 61 close together, the holding part 61 can sandwich the long side of the upper cylindrical part 21. The thickness of the presser metal object 6 is prevented from increasing as much as possible by the presser portion 61. The fastening portion 63 is provided with a bolt or nut, for example.

With the above configuration, the boundary between the upper cylinder part 21 on the upper side of the upper waterproof accessory 2 and the surface of the support column member 82 is sealed as a primary waterproof part, and the The boundary between the column-side sheet portion 1b and the surface of the column member 82 is sealed as a secondary waterproof portion. Since the standard members of the upper waterproofing accessory 2 and the level side waterproofing accessory 1 are used for the primary waterproofing and the secondary waterproofing, the waterproofing around the pillar member 82 can be carried out easily and accurately. can be done.

If the upper waterproof accessory 2 is formed with a central cylindrical part (overlapping part) 22 that overlaps the outer surface of the support seat part 1b, rainwater from above will be directed to the outside surface of the support support seat part 1b. It can be flushed on the outer surface of the upper waterproof accessory 2.

When an elastic water stop part 4 is provided between the secondary waterproof tape part 3 located on the outer surface side of the pillar-side sheet part 1b and the central cylindrical part (overlapping part) 22 of the upper waterproof accessory, the secondary Infiltration of rainwater through the gap between the waterproof tape part 3 and the upper waterproof accessory 2 can be suppressed.

A hem portion 23 that expands outward and downward is formed on the lower side of the upper waterproof accessory 2, and when the hem portion 23 comes into contact with or approaches the inner surface of the decorative cover member 83 that covers the pillar member 82, the decorative Rainwater coming in from the lower side of the cover member 83 due to wind blowing up can be deflected by the hem portion 23.

When the cutout 23a is formed in the hem 23, even if rainwater enters the upper side of the hem 23, the rainwater can flow downward from the cutout 23a.

If a presser metal member 6 is provided that presses a portion of the primary waterproof tape portion 5 located on the upper cylindrical portion 21 side to the upper cylindrical portion 21, the upper side of the upper waterproof accessory 2 and the 1 It is possible to suppress the formation of a gap between the secondary waterproof tape part 5 and the upper cylindrical part 21 of the upper waterproof accessory 2 to be brought into pressure contact with the surface of the secondary waterproof tape part 3 and the pillar member 82. be able to.

If the space between the central cylindrical part (overlapping part) 22 and the upper cylindrical part 21 of the upper waterproof accessory 2 is formed in a step-like manner, the step-like part is It can be used for positioning the presser metal 6.

Next, a construction method of the above-mentioned strut waterproof structure will be explained. As shown in FIG. 2, a support member 82 protruding from an opening 81 formed in an outdoor level area 80 is covered with the level area waterproof accessory 1 from above. At this time, a secondary waterproofing boundary is formed at the boundary between the pillar side sheet part 1b and the surface of the pillar member 82, so as shown in FIG. 3 is wound around the support member 82. Next, the elastic water stop portion 4 is pasted on the outside of the portion of the secondary waterproof tape portion 3 located on the outer surface side of the support-side sheet portion 1b.

Then, as shown in FIG. 4, the upper waterproof accessory 2 is fitted into the support member 82 from above. At this time, a primary waterproof boundary is formed at the boundary between the upper part of the upper cylinder part 21 of the upper waterproof accessory 2 and the surface of the support column member 82, so the primary waterproof boundary is formed so as to seal this primary waterproof boundary. The waterproof tape portion 5 is wrapped around the support member 82. Next, as shown in FIG. Next, the waterproof tape section 5 is brought into pressure contact with the upper cylinder section 21.

After that, the work of attaching the decorative cover member 8, attaching the handrail, etc. is performed.

Although the embodiments of the present invention have been described above with reference to the drawings, the present invention is not limited to the illustrated embodiments. Various modifications and variations can be made to the illustrated embodiment within the same scope or equivalent scope of the present invention.

1 : Plain side waterproof accessory 1a : Plain side sheet part 1b : Pillar side sheet part 2 : Upper waterproof accessory 3 : Secondary waterproof tape part (secondary waterproof part)
4: Elastic water stop part 5: Primary waterproof tape part (primary waterproof part)
6: Holder 21: Upper cylinder part (upper side)
22: Central cylindrical part (overlapping part)
23: Hem portion 23a: Notch portion 61: Holding portion 62: Step portion 63: Fastening portion 80: Plain portion 81: Opening 82: Support member 82a: Fixed portion 83: Decorative cover member

Claims (7)

A column waterproof structure that waterproofs the surrounding area of a column member protruding from an opening formed in an outdoor flat area,
a flat field side waterproof accessory having a flat field side seat part located on the upper surface of the flat field part around the pillar member and a pillar side sheet part covering the lower surface of the pillar member;
a secondary waterproof part that seals a boundary between the support-side sheet part and the surface of the support support member;
an upper waterproof accessory that covers the surface of the secondary waterproofing part so that the upper side is located;
a primary waterproof part that seals a boundary between the upper side of the upper waterproof accessory and the surface of the support member;
A pillar waterproof structure characterized by comprising. 2. The waterproof strut structure according to claim 1, wherein an overlapping part is formed on the lower side of the upper side of the upper waterproof accessory, which overlaps with the outer surface side of the strut side sheet part. 3. The waterproof strut structure according to claim 2, wherein a step is formed between the overlapping portion of the upper waterproof accessory and the upper side. In the strut waterproof structure according to claim 2 or 3, an elastic water stop portion is provided between the secondary waterproof portion located on the outer surface side of the strut side sheet portion and the overlapping portion of the upper waterproof accessory. A pillar waterproof structure. In the strut waterproof structure according to any one of claims 1 to 4, a hem portion that expands diagonally downward is formed on the lower side of the upper waterproof accessory, and a decorative part that covers the strut member. A strut waterproof structure characterized in that the hem portion contacts or is close to the inner surface of the cover member. 6. The waterproof strut structure according to claim 5, wherein a notch is formed in the hem. In the strut waterproof structure according to any one of claims 1 to 6, a portion of the primary waterproof part located on the upper side of the upper waterproof accessory is placed on the upper side of the upper waterproof accessory. A column waterproof structure characterized by being equipped with a pressure fitting.

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