JPH06257288A - Waterproof and heat insulation sheet for construction work - Google Patents

Abstract

PURPOSE:To obtain an all-weather, divided sheet for construction works which can be used regardless of weather. CONSTITUTION:A sheet for construction works has a three-layer structure composed of a superficial waterproof sheet 1, an intermediate thermal insulation member 12 arranged both lengthwise and breadthwise, and a rear waterproof sheet 13. The front and rear waterproof sheets 11, 13 are welded with heat at the surrounding area of the thermal insulation member 12 to form a bag 17 in which a thermal insulating material 12 is contained. Water drain holes are provided on the bag 17 and resin foams of independent bubbles are used for the thermal insulating material 12. Even when the bag 17 is broken and water enters therein, the entered water does not retain in the inside of the bag 17. This is provided with thermal insulating and waterproofing functions and also can be easily folded and divided for all-weather.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a construction sheet surrounding a scaffold at a construction site.

[0002]

2. Description of the Related Art In cold regions, rectangular bags made by sewing double-sided waterproof sheets in a grid pattern so that work can be performed regardless of weather conditions, whether it is raining or snowing. Air sheets filled with air are used as construction sheets.

[0003]

[Problems to be Solved by the Invention]
Since it has an air layer inside, it has good heat insulation properties and is suitable for winter use in cold regions, but it is easy to open holes due to nails and other hardware used at construction sites, causing air leakage from there and as a heat insulating sheet , It is difficult to drain water that entered the bag through such holes, it is difficult to fold it after use, or air must be injected into each bag at the time of use. There is.

[0004]

A waterproof insulating sheet for construction 20 according to the present invention comprises: (a) a surface layer which is a waterproof sheet 11; and an intermediate layer in which heat insulating materials 12 are arranged vertically and horizontally in a required gap W. It has a three-layer structure with the back surface layer that constitutes the waterproof sheet 13, and (b) the waterproof sheet 11.1 of the front surface layer and the back surface layer.
3 is formed by laminating thermoplastic resins 15 and 16 on the front and back of the interlining 14, and (c) the waterproof sheets 11 and 13 of the front surface layer and the back surface layer are fused around the heat insulating material 12 to provide heat insulation. A bag 17 surrounding the material 12 is formed, and (d) a water drain hole 18 is provided in the waterproof sheet (11 or 13) of either the front surface layer or the back surface layer of the bag 17, which is the front surface layer or the back surface layer. (E) The heat insulating material 12 is characterized by being a resin foam which forms the closed cells 19.

The "resin foam made of closed cells 19" forming the heat insulating material 12 is a foam made of airtight fine bubbles like a rubber balloon, and is made of a resin such as polyethylene, polypropylene or polyester. It is preferable to use a flexible plate having a thickness T of 1 to 10 cm, and the gap W between each heat insulating material or bag is equal to the heat insulating material 12.
It is preferable that the thickness T is 3 to 6 times.

A woven or non-woven fabric is used for the interlining 14 of the waterproof sheets 11 and 13, and the thermoplastic resin 1 laminated on the front and back thereof.
Resins such as vinyl chloride type and ethylene vinyl acetate type are preferably used for 5/16. In order to fuse the front and back waterproof sheets 11 and 13 around the heat insulating material 12, ultrasonic waves or high frequencies (welder) may be used.

The waterproof insulation sheet 20 for construction is formed in a rectangular shape, and holes 21 for fastening pigeons 10 to 2 are formed at both front and rear edges thereof.
It is attached at an interval of 0 cm, and is tied to a horizontal cloth or a cross cloth 23 of the scaffolding 22 which is erected on the construction site by a string, or is spliced vertically to be used. On the other hand, slide-type fasteners 24 are attached to the left and right edges, and the fasteners 24
Therefore, it is recommended to use it by splicing it to the left and right. Drain hole 18
When you turn both front and rear edges with the dove stopper 21 up and down,
It may be provided near the lower edge of each bag.

[0008]

EFFECT OF THE INVENTION Waterproof insulation sheet for construction 20 according to the present invention
The heat insulation function of is not provided by the air layer in the bag swelling like a rubber balloon, but is provided by the resin foam 12 as an aggregate of the fine closed cells 19. Even if a part is broken by nails or other metal objects, the heat insulating function of the entire resin foam 12 is not impaired.

The resin foam 12 is a waterproof sheet 11 in which thermoplastic resins 15 and 16 are laminated on the front and back of the interlining 14.
Since it is covered with 13, it is unlikely that the closed bubbles 19 break and the heat insulating function is impaired.

Further, even if the waterproof sheets 11 and 13 covering the front and back of the resin foam 12 are torn and water may enter the bag 17, since each bag 17 has a large drain hole 18 originally, The invaded water does not flow out and collect in the bag 17. Moreover, the closed cells 19 forming the resin foam 12 are like fine rubber balloons, and moisture is not absorbed therein, so that the resin foam 12 absorbs water or is contained in the bag 17. The inconvenience that water is accumulated and the waterproof insulation sheet for construction 20 becomes difficult to fold does not occur.

Unlike the conventional construction sheet which is an air sheet, in the construction waterproof insulating sheet 20 according to the present invention, since the elastic heat insulating material 12 is inserted into the bag 17, the bag is made one by one. The trouble of injecting air into or removing air from the inside 17 can be saved, and it can be used as it is by spreading or folding and storing.

In particular, ethylene vinyl acetate resin, polyolefin resin, polyester resin or the like having a low glass transition point is used for the front and back sides (15.1 of the waterproof sheet 11.13).
6) or the resin foam 12, a waterproof insulating sheet for construction 20 which is hardened and not damaged in severe cold can be obtained. When the front and back waterproof sheets 11 and 13 are fused by high frequency sewing (welder), the waterproof sheet 1
For the resins (15 and 16) on the front and back of 1.13, it is preferable to use vinyl chloride resins such as ethylene / vinyl acetate / vinyl chloride terpolymer resin having a vinyl chloride component.

Thus, according to the present invention, an all-weather split type waterproof insulating sheet for construction 20 suitable for construction work sites in cold regions can be obtained, and scaffolds 22 etc. can be constructed which can be easily operated regardless of the weather. The construction period of the construction work is shortened, and it becomes possible to improve labor by introducing a two-day workweek system, which is a great advantage in practical use of the present invention.

[Brief description of drawings]

FIG. 1 is a sectional perspective view of a construction work site surrounded by a waterproof insulation sheet for construction work according to the present invention.

FIG. 2 is a perspective view of a main part of a waterproof insulation sheet for construction work according to the present invention when viewed from the surface.

FIG. 3 is a perspective view of an essential part of a waterproof insulation sheet for construction according to the present invention, as viewed from the back side.

FIG. 4 is an enlarged cross-sectional view of a main part of the waterproof insulation sheet for construction according to the present invention.

[Explanation of symbols]

 11 Waterproof Sheet 12 Thermal Insulation Material (Resin Foam) 13 Waterproof Sheet 14 Interlining 15 Thermoplastic Resin 16 Thermoplastic Resin 17 Bag 18 Drain Hole 19 Closed Bubble 20 Waterproof Insulation Sheet for Construction 21 Dovetail Hole 22 Scaffold 23 Horizontal Cloth Graffiti) 24 Huasner W gap

Claims (1)

[Claims] 1. A surface layer to be a waterproof sheet 11, an intermediate layer in which heat insulating materials 12 are arranged vertically and horizontally in a required gap W,
It has a three-layer structure with a back surface layer that constitutes the waterproof sheet 13, and the waterproof sheets 11 and 13 of the front surface layer and the back surface layer are formed by laminating thermoplastic resins 15 and 16 on the front and back of the interlining 14, and
The waterproof sheets 11 and 13 of the front surface layer and the back surface layer are heat insulating materials 12.
Bag 17 which is fused around the periphery of the heat insulating material 12 and surrounds the periphery of the heat insulating material 12.
Is formed, the drainage holes 18 are provided in the waterproof sheet (11 or 13) of either the front surface layer or the back surface layer of the bag 17, and the heat insulating material 12 is formed into the closed cells 19. Waterproof insulation sheet for construction, which is made of a resin foam.