JPS61172950A - Water-proof structure - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a waterproof structure that is used continuously for roofs, balconies, eaves, floors, underground walls, water tanks, etc. of buildings.

” Rice and I In the conventional waterproof structure in which a waterproof sheet is stretched on the surface of the structure,
There was one in which an adhesive was applied to the surface of the body or a waterproof sheet, and the waterproof sheet was adhered to the surface of the body over the entire surface.

In addition, if the waterproof sheet is made of vinyl chloride resin,
A steel plate coated with vinyl chloride resin on the surface is fixed to the frame with an anchor, a vinyl chloride resin sheet is spread on the surface of the steel plate, a vinyl chloride resin welding agent is applied to the vinyl chloride resin layer of the steel plate and the surface of the vinyl chloride resin sheet, Both were joined together.

However, with the former type of waterproof structure, the adhesive must be applied after cleaning the bonding surface, which is cumbersome, and the repair work is difficult because the surface of the structure has aged. Construction work was difficult, and furthermore, construction work was impossible when the surface of the structure was damp.

Particularly in such a waterproof structure, the overlapping parts of adjacent sheets are also bonded to each other by adhesive, so if this adhesive application area is not evenly and evenly formed over the entire surface, the overlapping adhesion will occur. There will be gaps between the parts, which may cause water leakage.

In addition, even with the latter type of waterproof structure, the work is troublesome and there is a possibility of inhaling the vapor of the welding material, which poses health problems for the workers.Moreover, if the welding material is not applied evenly, The thickness of the vinyl chloride resin layer and the vinyl chloride resin sheet becomes uneven, which impairs the appearance.

The present invention relates to a waterproof structure that overcomes such difficulties, and includes a thermoplastic waterproof sheet laid in contact with the surface of a building structure, and a thermoplastic waterproof sheet laid in contact with the top edge of the waterproof sheet, and a waterproof structure that is placed in contact with the top edge of the waterproof sheet and A waterproof structure consisting of a sheet joining means anchored to the surface, and in which the edge of the waterproof sheet is partially fixed to the surface of the building frame by heat-sealing the waterproof sheet and a thermoplastic part of the sheet joining means. can be configured.

Backyard 1 The embodiment shown in FIGS. 1 and 2 in which the present invention is applied to a roof will be described below.

Reference numeral 1 denotes a concrete roof frame, and metal or hard synthetic resin is applied to the top surface of the roof frame 1 at required locations to partially fix the edge 3 of the thermoplastic resin waterproof sheet 2 to the top surface of the roof frame 1. A member 4 having a relatively high strength band-like structure is integrally connected to the roof frame 1 by an anchor 9 which is driven into the roof frame 1 through the member 4.

Further, as the material of the waterproof sheet 2 made of thermoplastic resin, the material disclosed in JP-A-59-18741 is used, namely (A) monoolefin copolymer rubber (ethylene-propylene copolymer rubber, ethylene-propylene copolymer rubber, ethylene-propylene copolymer rubber, -Amorphous random rubbery copolymers mainly composed of olefins such as non-conjugated diene copolymer rubber and ethylene-butadiene copolymer rubber) and polyolefin resins (isotactic polypropylene, propylene-ethylene copolymer, propylene-
1-butene copolymer, propylene-1-hexene copolymer, propylene-4-methyl-1-pentene copolymer)
A mixture of a thermoplastic elastomer partially crosslinked by heating and kneading and (B) ethylene polymer, or a vinyl chloride resin is used.

Further, the member 4 of the receiver is engaged with an inner locking piece 7 of a cover member 6 made of thermoplastic resin, and the member 4 and the cover member 6 constitute sheet joining means.

Furthermore, the waterproof sheet 2 is stretched over the upper surface of the roof frame 1, and the edge 3 of the waterproof sheet 2 is pressed against the surface of the roof frame 1 by the sheet pressing piece 8 of the cover member 6. The sheet pressing piece 8 of the cover member 6 and the edge 3 of the waterproof sheet 2 are heated and then pressurized, and the sheet pressing piece 8 is heat-sealed to the edge 3 of the waterproof sheet 2.

Note that a locking pawl 11 is formed on the leg portion 10 of the anchor 9.

In the embodiment shown in FIGS. 1 and 2, the receiver partially fixes the edge 3 of the waterproof sheet 2 to the surface of the roof frame 1 only at the anchoring position of the member 4 and the cover member 6. I can do it.

Further, in the above embodiment, since no welding agent or adhesive is used, there is no risk of harm to the health of workers during construction, and the sheet of cover member 6 is attached to the edge 3 of the waterproof sheet 2 by heat fusion. Since the pressing pieces 8 are bonded together, it is possible to prevent the joint surface from peeling off due to deterioration of the welding agent over time.

Furthermore, the edge 3 of the waterproof sheet 2 is sandwiched on the surface of the roof frame 1 by the sheet pressing piece 8 of the cover member 6, and is heat-sealed to the sheet pressing piece 8, so that it is doubly fixed. Therefore, from the surface of the roof frame 1 to the edge 3 of the waterproof sheet 2
Even if a force that causes the waterproof sheet to peel off is applied to the waterproof sheet 2, the peeling force is borne by the sheet pressing piece 8 of the cover member 6, the inner locking piece 7, the receiving member 4, and the anchor 9, and the peeling force 2 and the sheet pressing piece 8 of the cover member 6 is not affected, and the edge 3 is firmly connected to the sheet pressing piece 8.

Furthermore, since the waterproof sheet 2 can be fixed to the roof frame 1 without forming holes in the waterproof sheet 2 and the cover member 6 that seal the roof frame 1, it is possible to reliably maintain watertightness over a long period of time. .

Moreover, since the edge 3 of the adjacent waterproof sheet 2 is heat-sealed to the sheet pressing piece 8 of the cover member 6, it is possible to spread many waterproof sheets 2 over a wide area by laying them on the surface of the roof frame 1. can form a waterproof structure.

Furthermore, even if the surface of the roof frame 1 is dirty or damp, only the surface of the edge 3 of the waterproof sheet 2 needs to be cleaned, so this embodiment can be applied not only to new construction work but also to renovation work. .

In the embodiment shown in FIGS. 1 and 2, the anchor 9 is driven into the roof frame 1 to anchor the member 4 to the roof frame 1, but as shown in FIG. Anchor bolts 13 are embedded in the roof frame 1 and installed in the embedded metal fittings 12.
The member 4 may be anchored to the roof frame 1 by screwing and tightening the receiver.

Further, in the embodiment shown in FIGS. 1 to 3, the sheet joining means is composed of a receiver member 4 and a cover member 6, and after anchoring the member 4 to the roof frame 1 with anchors 9, The receiver engages the member 4 with the inner locking piece 7 of the cover member 6, the receiver connects the member 4 and the cover member 6, and the sheet pressing member 8 of the cover member 6 presses the waterproof sheet 2. A waterproof structure is formed by pressing the edge 3 of the sheet pressing member 8 and heat-sealing the edge 3.

As described above, according to the present invention, the edges of the waterproof sheet can be fixed to the surface of the building structure, so it is possible to form a waterproof structure over a wide area by joining the waterproof sheets one after another in a watertight manner. can.

In addition, in the present invention, since the edge of the waterproof sheet is locally heat-sealed to the sheet joining means, there is no need to use a welding agent or adhesive, and construction is simple, and the waterproof structure is durable. rich in

Furthermore, since the waterproof sheet can be fixed to the surface of the building frame without providing holes in the waterproof sheet, a highly reliable waterproof structure that is watertight can be formed.

Furthermore, since it is not necessary to apply welding agent or adhesive over the entire surface of the waterproof sheet, it can be applied not only to new construction work but also to renovation work where the surface of the structure is dirty, and even if the surface of the structure is damp. , construction can be carried out without drying it.

[Brief explanation of the drawing]

FIG. 1 is a longitudinal sectional front view showing one embodiment of a waterproof structure according to the present invention, FIG. 2 is a partially cutaway perspective view thereof, and FIG. 3 is a longitudinal sectional front view of another embodiment. DESCRIPTION OF SYMBOLS 1... Roof frame, 2... Waterproof sheet, 3... Edge, 4... Receiving member, 6... Cover member, 7... Inner locking piece, 8...・
Seat pressing piece, 9... Anchor, 10... Leg part,
11... Locking claw, 12... Embedded metal fitting, 13...
Anchor bolt.

Claims (1)

[Claims] A thermoplastic waterproof sheet laid in contact with the surface of the structure,
A waterproof structure comprising a sheet joining means that is in contact with an upper edge surface of the waterproof sheet and anchored to the surface of the body, and the thermoplastic portion of the waterproof sheet and the sheet joining means are heat-sealed. .