JPH08338114A - Waterproof-coating member for exposed opening part of building - Google Patents

Abstract

PURPOSE: To easily carry out waterproofing of exposed opening part in a building, to reduce caulking marks and to improve appearance. CONSTITUTION: A waterproof-coating member 10 is constituted by forming a marginal part 11 and a rising part 12 rising from the inner circumferential side of the marginal part 11 integrally pressure molded of a polyvinyl chloride sheet by a mold and by forming an opening 15 on the inside of the rising part 12. This waterproof-coating member 10 is set on a building exposed opening part 1 by thermal welding. As the waterproof-coating member 10 is integrated, setting work and caulking work are reduced, and as there are few caulking marks, appearance is also improved.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a waterproof covering member for an exposed opening of a building, for example, a hatch for evacuation on a balcony, an opening for mounting a pillar standing on the balcony, and a rooftop inspection provided on an eave in an outer corridor. It can be used for waterproofing various openings such as mouth and roof ventilator.

[0002]

BACKGROUND ART Conventionally, a waterproof sheet such as vinyl chloride is laid on exposed parts of buildings such as balconies, outer corridors, and flat roofs to prevent rainwater and the like from entering concrete or lightweight cellular concrete board parts. .

By the way, various openings used for evacuation hatches, inspection gates, etc. were sometimes formed in exposed parts of buildings. Since such an opening tends to be a problem in raining, it is usually formed by providing a rising part that is one step higher than the plane level of the exposed part of the building so that rainwater that pours into the exposed part of the building does not flow. . In addition, even in the opening portion having the rising portion, a waterproof sheet is laid in order to prevent rainwater from entering the concrete or the lightweight cellular concrete plate portion.

The waterproof sheet having a rising portion and laid in an opening having a complicated shape is cut according to the rising shape of the opening, and a patch sheet for covering the corners of the opening is prepared separately. Then, the plurality of waterproof sheets are stacked and welded. In addition, each welded portion (joint portion) of the plurality of waterproof sheets has been treated with a caulking material in order to improve waterproof performance.

[0005]

However, it is necessary to cut the waterproof sheet according to the shape of the opening, to prepare a patch sheet, or to lay these waterproof sheets in the opening according to the rising shape thereof. Since the work of attaching by heat welding is complicated and time-consuming, there is a problem that it is very troublesome to waterproof the exposed opening of the building. In addition, since a plurality of waterproof sheets are used, the number of joints (welded portions) of the waterproof sheet increases, and the number of places where the caulking process is performed increases, and the caulking process takes a long time, and the caulking marks conspicuously deteriorate the appearance. There was also.

SUMMARY OF THE INVENTION An object of the present invention is to provide a waterproof coating member for an exposed building opening, which can easily waterproof the exposed building opening, reduce the number of caulking marks, and improve the appearance.

[0007]

SUMMARY OF THE INVENTION The present invention is a waterproof coating member for a building exposure opening, which is covered by the building exposure opening and waterproofs rainwater, and a peripheral edge portion covering the periphery of the building exposure opening. A rising part formed by rising from the inner peripheral side of the edge part and an opening formed in the inner circumference of the rising part, the edge part and the rising part being integrally formed of a synthetic resin sheet by a mold. It is characterized by being formed by pressure molding.

At this time, it is preferable that the synthetic resin sheet is a vinyl chloride sheet, and the molding is performed by heating the vinyl chloride sheet. Further, it is preferable that a plate covered with a vinyl chloride sheet is attached around the building exposed opening, and the waterproof covering member is heat-welded to the plate.

[0009]

In the present invention as described above, since the waterproof covering member is integrally pressure-molded at the peripheral portion and the rising portion, the waterproof sheet can be cut or a patch sheet or the like can be formed as in the conventional case. The troublesome work of laying a plurality of waterproof sheets becomes unnecessary, and the building exposed opening can be easily waterproofed only by installing this waterproof covering member in the building exposed opening. Further, since the waterproof covering member is integrally molded, the number of joint portions of the waterproof sheet, that is, the portions where the caulking process is required is reduced, the waterproof performance is improved, the caulking work is reduced, and the appearance is also improved.

Further, when the synthetic resin sheet is a vinyl chloride sheet and the molding is performed by a mold by heating the vinyl chloride sheet, the die cost becomes relatively inexpensive as the integral pressure molding of the synthetic resin member. The thermoforming can be performed, and the waterproof coating member can be manufactured at low cost.

At this time, when a plate covered with a vinyl chloride sheet is attached around the waterproof covering opening and the waterproof covering member is heat-welded to the plate, the waterproof covering member is easily and surely attached to the opening. By being bonded, the waterproof property of the bonded part is improved.

[0012]

An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is an overall perspective view of a waterproof covering member 10 according to the present embodiment, which covers the building exposure opening 1. The building exposure opening 1 of this embodiment is formed as an escape hatch on a balcony (exposed building),
As shown in the cross-sectional view of FIG. 2, it has two steps of rising portions 3 and 4 which are formed by rising from the floor surface 2 of the balcony, and an evacuation opening 5 penetrating the inner peripheral side of the rising portion 4. . A lid 6 is fitted on the rising portion 4 to normally close the evacuation opening 5, and in the event of a fire or a disaster, the lid 6 can be removed to evacuate downstairs from the evacuation opening 5.

The waterproof covering member 10 is formed in a shape matching the shape of the building exposed opening 1. That is, the waterproof covering member 10 has a side edge portion 11 formed in a generally rectangular frame shape, a rising portion 12 rising from the inner peripheral side of the side edge portion 11, and an upper end of the rising portion 12. It has a bent portion 14 that is horizontally bent inward, and an opening 15 formed on the inner peripheral side of the bent portion 14.

The waterproof covering member 10 has a peripheral portion 11, a rising portion 12, a bent portion 14, and an opening 15 which are integrally pressure-molded from a vinyl chloride sheet by a mold to be described later, specifically, integrally pressure-molded. Among them, it is formed by plug-assisted vacuum forming classified into thermoforming.

The rising portion 12 is formed continuously with the edge portion 11 and the bent portion 14 by drawing at the time of integral pressure molding. In addition to the drawing process, the rising portion 12 may be formed by forming the waterproof covering member 10 made of a vinyl chloride sheet in an expanded shape and bending the sheet during integral pressure molding. In this case, the corner portions of the rising portions 12 may be heat-welded to each other so that rainwater does not leak from the corner portions.

FIG. 2 is a vertical cross-sectional view showing a state in which the waterproof covering member 10 is installed in the building exposed opening portion 1. On the floor surface 2 of the balcony, an evacuation hatch 20 having a substantially rectangular tube shape and having the rising portions 3 and 4 is arranged. Around the evacuation hatch 20, a frame (channel steel) 21 to which the evacuation hatch 20 is attached is provided, and a lightweight cellular concrete plate 22 forming the floor surface 2 is placed and fixed on the frame 21. . In addition, the frame 21 and the evacuation hatch 2
Calcium silicate plate 2 between 0 and the lower side of the skeleton 21.
3, 24 are arranged. Further, the eaves roofing material 25 is supported on the outer periphery of the lower end of the evacuation hatch 20.

A waterproof sheet 7 made of vinyl chloride sheet is laid on the floor surface 2. This tarpaulin 7
Is bent along the rising portion 3 and is bonded to the rising portion 3.

In the waterproof covering member 10 installed in the building exposed opening 1, the edge portion 11 and the rising portion 12 are heat-welded to the waterproof sheet 7, and the bent portion 14 is attached to the evacuation hatch 20 by adhesion. There is. The heat-sealing of the fireproof coating member 10 and the waterproof sheet 7 is performed by softening the contacting portions with each other using, for example, an electric iron or a hot air dryer. Further, the peripheral edge portion 1 of the heat-sealed waterproof covering member 10
A caulking material 17 is applied to the periphery of 1 and the bent portion 14 for waterproofing.

Next, the process of integral pressure molding of the waterproof covering member 10 will be described with reference to FIG. The integral pressure molding here is based on plug-assisted vacuum molding which is thermoforming as described above.

First, as shown in FIG. 3 (A), a vinyl chloride sheet 10 'preheated by a heater is positioned between a lower mold (male mold, plug) 31 and an upper mold (female mold) 32. Let The lower mold 31 includes a first lower mold 31A and a second lower mold 3A.
The second lower die 31B is urged upward by an urging means such as a spring or an air cylinder, and is arranged so as to be aligned with the upper surface level position of the first lower die 31A. There is.

Then, the upper mold 32 is lowered to bring the vinyl chloride sheet 10 'into contact with the lower mold 31, and then the upper mold 32
When the second lower mold 31B is lowered, the second lower mold 31B is pushed downward in accordance with the shape of the cavity of the upper mold 32, and further vacuum operation is performed to suck air in the cavity, as shown in FIG. 3 (B). A vinyl chloride sheet 10 'is molded. Here, since the upper die 32 includes the blade portions 32A and 32B,
The periphery and center of the vinyl sheet 10 'are cut,
Simultaneously with the molding, the edge portion 11 and the opening 15 are formed to mold the waterproof covering member 10.

Next, the upper mold 32 is raised, and the waterproof covering member 10 is cooled by natural cooling or forced cooling by a cooling means provided in the mold, and the waterproof covering member 10 is taken out to complete the molding process.

According to this embodiment, the following effects can be obtained. That is, the waterproof coating member 10 has the edge portion 1
1, the rising portion 12, the bent portion 14, and the opening 15 are formed by integral pressure molding. Therefore, by simply installing the waterproof coating member 10 in the building exposed opening portion 1 and performing heat welding or bonding, the opening is formed. The part 1 can be easily waterproofed.
With this, you can cut the waterproof sheet as before,
The work of installing a plurality of waterproof sheets and heat-welding many places becomes unnecessary, the work of installing and welding the waterproof covering member 10 can be reduced, and the work efficiency can be improved.

Further, since the waterproof covering member 10 is integrally formed, the number of joint portions of the seat is reduced as compared with the conventional case in which a plurality of seats are arranged, and the waterproof property can be improved. Further, since the joint portion of the waterproof sheet is reduced, the portion to which the caulking material is applied is reduced, and the caulking portion is only the inconspicuous portion such as the peripheral edge portion of the waterproof covering member 10. Traces are not conspicuous, the finish can be improved, and the appearance can be improved.

Then, the synthetic resin sheet is used as the vinyl chloride sheet 10 ', and the vinyl chloride sheet 1 is formed by molding.
Since 0'is performed by heating, thermoforming can be performed as the integral pressure molding of the synthetic resin sheet with relatively low die cost, and the waterproof coating member 10 can be manufactured at low cost. .

Further, since the edge portion 11 and the rising portion 12 of the waterproof covering member 10 are attached to the same waterproof sheet 7 made of vinyl chloride, the waterproof covering member 10 is made of the same material having good compatibility with each other. It can be heat-welded, and the heat-welding can be performed easily and surely.

The present invention is not limited to the above-described embodiments, but includes other configurations and the like that can achieve the object of the present invention, and the following modifications and the like are also included in the present invention. For example, in the above embodiment, the vinyl chloride sheet 10 'was used as the synthetic resin sheet, but as the synthetic resin sheet, in addition to the vinyl chloride sheet, an impact-resistant polystyrene sheet generally used for thermoforming and the like, From the polyethylene sheet, the ABS (acrylonitrile butadiene styrene) sheet, the polycarbonate sheet, etc., an appropriate one may be selected and used for its implementation.

The molding method of the waterproof covering member of the present invention is not limited to the plug-assisted vacuum forming of the above-mentioned embodiment, and other generally known methods such as direct vacuum forming, drape forming, or injection forming method. It may be formed by integral pressure molding, and a molding method suitable for the material of the resin sheet to be used may be adopted. At this time, the opening of the waterproof covering member may be formed by cutting the sheet 10 'at the same time when the sheet 10' is formed by forming the blade portion 32A on the mold as in the above-described embodiment, or after forming the waterproof covering member. It may be formed by cutting ′.

Further, in the above-mentioned embodiment, the waterproof coating member 10
Although the bent portion 14 is provided in the above, it is also possible to provide only the rising portion 12 without providing the bent portion 14 and perform heat welding or adhesion to the opening 1 side. Further, the rising portion 12 may be provided according to the shape of the opening 1. Further, in the above-described embodiment, the waterproof covering member 10 is heat-welded to the waterproof sheet 7 and attached to the evacuation hatch 20 using an adhesive, but the adhesive is also applied to the waterproof sheet 7. You may attach with. Alternatively, a plate covered with vinyl chloride may be fixed to the evacuation hatch 20 with screws or the like, and the waterproof covering member 10 may be heat-welded and attached to the waterproof sheet 7 and the plate.

Further, as the building exposed opening portion of the present invention,
Not limited to the evacuation hatch provided on the balcony, for example, a pillar-mounting opening formed on the balcony floor surface for arranging the pillar standing on the balcony, a roof inspection port provided on the eaves of the outer corridor, etc. Alternatively, openings for ventilators formed on the roof may be used, and the waterproof coating member 10 may be integrally molded according to the shape of each of these openings.

[0031]

As described above, according to the present invention, it is possible to easily waterproof the building exposed opening portion, improve workability, and reduce caulking marks to improve the appearance. is there.

[Brief description of drawings]

FIG. 1 is a perspective view showing a building exposure opening portion and a waterproof covering member thereof according to an embodiment of the present invention.

FIG. 2 is a vertical cross-sectional view showing a state in which the waterproof covering member is installed in a building exposed opening.

FIG. 3 is an explanatory view illustrating an integral pressure molding step of the waterproof covering member.

[Explanation of symbols]

 1 Building exposed opening 7 Waterproof sheet 8 Plate 10 Waterproof covering member 10 'Vinyl chloride sheet 11 Edge 12 Standing part 14 Bending part 15 Opening 20 Evacuation hatch 31 Lower mold 32 Upper mold

Claims (3)

[Claims] 1. A waterproof covering member for a building exposure opening, which is covered by the building exposure opening and waterproofs rainwater, the edge covering the periphery of the building exposure opening, and the inner peripheral side of the edge. A rising portion formed by rising up from the opening and an opening formed on the inner circumference of the rising portion, and the edge portion and the rising portion are formed by integral pressure molding of a synthetic resin sheet by a mold. A waterproof coating member for a building exposed opening, which is characterized by: 2. The waterproof coating member for a building exposed opening according to claim 1, wherein the synthetic resin sheet is a vinyl chloride sheet, and the molding is performed by heating the vinyl chloride sheet. Waterproof coating for exposed building openings. 3. The waterproof covering member for a building exposed opening according to claim 2, wherein a plate covered with a vinyl chloride sheet is attached around the building exposing opening, and the waterproof covering member is the plate. A waterproof coating member for a building exposed opening, which is heat-welded to the.