JPH03183854A - Method for lining structure with water-proof sheet - Google Patents

Abstract

PURPOSE:To enable work to be easily executed by mounting the edges confronted with each other, of both sheets adjacent to each other, to be put together, on a band-shaped metallic plate fixed temporarily on an underground zone, and ty fusion-welding the edges put together, with a high-frequency heater. CONSTITUTION:On an underground zone 1, a band-shaped metallic plate 3 is temporarily fixed. After that, on the metallic plate 3, the edges confronted with each other, of both water-proof sheets 2a, 2b adjacent to each other are put together to be mounted. After that, the upper section electrode 9 and earth electrode 11 of a hand type high-frequency heater 5 are put together on the metallic plate 3 on the edges put together, of the sheets 2a, 2b, and are pressure- welded to each other. Then, between the upper section electrode 9 and a lower section electrode formed with the metallic plate 3, a closed circuit is formed, and high-frequency voltage is applied to the circuit. Besides, the metallic plate 3 is heated, and the coating film layer of the metallic plate 3 is dissolved, and the edges put together, of the sheets 2a, 2b are dissolved, and are fusion-welded to the metallic plate 3.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to a method for applying a waterproof sheet to a building, such as a flat roof floor.

[Conventional technology]

Waterproof sheets are generally laid on the surfaces of buildings that are to be waterproofed.

Another example is the insulation construction method (waterproof sheet floating method), which involves applying a solvent to the opposing surfaces of the overlapping parts of adjacent waterproof sheets and welding them together, or applying insulation to the parts to be waterproofed. A metal plate-shaped fixing device is attached to the base layer, and then a solvent is injected from the surface of the waterproof sheet to the surface of the fixing device using a syringe and a needle to weld the waterproof sheet and the fixing device. JP-A No. 53-31324).

[Problem that the invention seeks to solve]

The above method of installing a waterproof sheet not only requires skill as it involves applying a solvent to the welded part and welding it, but if the outside temperature is low, there is a risk that the welding will be incomplete, so Hot air is blown onto the overlapping surfaces of the waterproof sheets coated with solvent, but the welding process is extremely complicated.

By the way, there is a method of using a high frequency heating device for welding, but the conventional high frequency heating device has a high frequency generator and a press device attached to the outer frame, the upper electrode is connected to the high frequency generator with a lead wire, and the press A high-frequency circuit is formed through a metal table that holds the workpiece by moving the device up and down and receives the workpiece.When welding workpieces, the workpiece must be placed on the table regardless of its size, so it is difficult to weld buildings. When overlapping and welding opposite edges of waterproof sheets to be laid on the floor of a building, it is not possible to place the overlapping parts on the table of a high-frequency heating device, but fortunately, a hand-type high-frequency heating device has been developed and it has become a reality. Kaisho 60-9979
No. 8).

Therefore, the purpose of this invention is to use the hand-type high-frequency heating device developed above to weld the opposite edge of a waterproof sheet spread on the floor of a building with an adjacent waterproof sheet. It is.

[Means for solving problems]

In order to achieve the above object, one aspect of the present invention is to sequentially lay waterproof sheets on the surface of a building that is to be waterproofed, and to place a band on the base layer in advance at a position where opposing edges of both adjacent waterproof sheets are to be overlapped. Temporarily fix a metal plate and place the opposite edges of both waterproof sheets on top of it, and use a high-frequency heating device to weld the overlapped gauze. A tuning section is provided at the connection point,
A ground electrode is provided near the tuning section, an upper electrode is formed on the ground electrode section via an insulator, and a handle is provided.The upper electrode and the ground electrode are connected to the strip metal on a waterproof sheet. A method for installing waterproof sheets in buildings, in which the metal strips are stacked on top of each other and pressure-welded, the band-shaped metal plate also serves as the lower electrode, a closed circuit is formed, a high frequency voltage is applied, and the opposing overlapping edges of both adjacent waterproof sheets are welded. That is.

Another aspect of the present invention is to sequentially lay waterproof sheets on the surface of a building that is to be waterproofed, and to overlay the surface over the entire length of the base layer at the position where the opposite edges of both adjacent waterproof sheets are to be overlapped. A band-shaped metal plate having a waterproof sheet and a weldable coating layer is fixed on the side, and the opposing weight edges of both adjacent waterproof sheets are overlapped and welded, and the welding is performed using a high-frequency heating device. This device is equipped with a tuning part at the extension connection point of a coaxial cable led out from a high frequency generator, a ground electrode is provided near the tuning part, an upper electrode is formed on the ground electrode part via a non-contact material, and a handle is provided. The above-mentioned upper electrode and the earth electrode placed at this position are placed on a strip-shaped metal plate on a waterproof sheet and pressed together, and the strip-shaped metal plate also serves as the lower electrode to form a closed circuit and apply a high-frequency voltage. This is a method for installing waterproof sheets in buildings, in which the overlapping edges of both opposing waterproof sheets are welded to a band-shaped metal plate along its entire length.

[Effect]

In one aspect of this invention, a band-shaped metal plate is placed on the base layer at a position where both adjacent waterproof sheets should face each other and overlap on the surface to be waterproofed of a building, and a hand-type high-frequency application is applied to the overlapping edge of each waterproof sheet. I! ! By overlapping and press-contacting the upper electrode and the ground electrode on the bottom of the device, the band-shaped metal plate also serves as the lower electrode and forms a closed circuit, and high-frequency voltage is applied, so the overlapping edge of the waterproof sheet on the band-shaped metal plate is heated. and welded together.

Another aspect of the present invention is a metal strip having a coating layer weldable to the waterproof sheet formed on the base layer at a position where adjacent waterproof sheets should face each other and overlap on the surface of the building to be waterproofed. By fixing the plates and placing and press-contacting the upper electrode and the ground electrode on the lower surface of the hand-type high-frequency heating device on the opposing and overlapping edges of the adjacent waterproof sheets, it is possible to Similarly, a high frequency voltage is applied to the band-shaped metal plate, and the coating layer on the surface of the band-shaped metal plate and the edges of the overlapping waterproof layers are heated and welded together.

〔Example〕

FIG. 1 is a front view showing an embodiment of a method for installing a waterproof sheet for a building according to one aspect of the present invention; Figure R2 is a side view of the same, where 1 is the base layer of a surface to be waterproofed, such as a flat roof floor of a building, 2a and 2b are waterproof sheets laid on the base layer, and opposing edges of both waterproof sheets. is welded.

As shown in enlarged Fig. 3, at the position where the opposing edges of both waterproof sheets 2a and 2b are to be overlapped, a band-shaped metal plate 3 is placed on the base layer 1 in advance by applying adhesive 4 to the lower surface, for example. After being temporarily fixed, the overlapping facing aa-b of both waterproof sheets 2a and 2b are welded using a high-frequency heating device 5.

The high-frequency heating device 5 is of a hand type, and includes a high-frequency generator 6, a tuning section 7 at the extension connection point of a coaxial cable 8 led out from the high-frequency generator 6, and a ground electrode 11 with a handle 10. This is an upper electrode configured with an insulator 12 in between.

A power cord 13 is connected to the high frequency generator 6 .

To weld the opposing overlaps lla and b of the waterproof sheets 2a and 2b using the hand type high frequency heating device 5, hold the handle 10 of the high frequency heating device 115 and hold the lower upper electrode 9 and the ground electrode 11. Both waterproof seams) 2a and 2b
The band-shaped metal plate 3 under the opposing overlapping edges of the two waterproof sheets 2a and 2b also serves as the lower electrode, and a closed circuit is formed between the upper and lower electrodes, and a high frequency voltage is applied and heated to connect the opposing overlapping sheets 2a and 2b! ta-b are melted and integrated.

FIG. 4 is an enlarged longitudinal cross-sectional view of the main part corresponding to FIG. 3 of the above-mentioned one embodiment of the present invention, showing an embodiment of a method for installing a waterproof sheet for a building according to another embodiment of the present invention. The difference from Fig. 3 is the band-shaped metal plate 3 disposed at the bottom of the opposing overlapping edges a and b of the adjacent waterproof seams 2a and 2b.
A has a coating film Fj14 on its surface that can be welded to a waterproof sheet.
The belt-shaped metal plate 3a is fixed to the base layer 1 with screws 15.

Therefore, by placing the upper electrode 9 and the ground electrode 11 of the hand-type high-frequency heating device 5 on the opposing overlaps lia and b of the two adjacent waterproof sheets 2a and 2b and pressing them together, they overlap! The band-shaped metal plate 3a under ta-b also serves as a lower electrode, and a closed circuit is formed between the upper and lower electrodes to apply a high-frequency voltage, heating the band-shaped metal plate 3a and coating the coating layer 1 on the surface side.
4 is melted, and the opposing overlapping edges a and b of 2a and 2b are also melted and overlapped, and 1lla-b is the band-shaped metal plate 3.
It is welded to a.

〔effect〕

The method for installing a waterproof sheet for a building according to the present invention has the following effects.

A band-shaped metal plate is temporarily fixed on the base layer in advance at the position where the opposing edges of both adjacent waterproof sheets should overlap on the surface to be waterproofed of the building, and the opposing edges of both waterproof sheets are placed on top of that. A high-frequency heating device is used to weld the overlapping edges, and this device is equipped with a tuning section at the extension connection point of the coaxial cable led out from the high-frequency generator, a ground electrode near the tuning section, and a ground electrode section. The upper electrode of this device is constructed with an insulating material interposed therebetween, and is equipped with a handle.The upper electrode and the ground electrode of this device are stacked and pressure-bonded on the band-shaped metal plate on the opposing and overlapping edges of both waterproof sheets. As a result, the band-shaped metal plate also serves as the lower electrode and forms a closed circuit, and a high frequency voltage is applied and heated to ensure that the opposing overlapping edges of both waterproof sheets are welded together, and waterproofing can be performed even when the outside temperature is low. It is possible.

Further, by using another method of installing a waterproof sheet for a building according to the present invention, the following effects can be obtained.

A band-shaped metal plate whose surface has a coating layer that can be welded to the waterproof sheet is fixed in advance on the base layer over its entire length at the position where the opposing edges of both adjacent waterproof sheets should overlap on the surface to be waterproofed of the building. Then, overlap the opposing overlaps n of both waterproof sheets on top of that, and overlay the upper electrode and the ground electrode of the same hand-type high-frequency heating device as used in the first invention on the band-shaped metal plate on the waterproof sheet and press-bond them. By doing so, the metal band plate also serves as the lower electrode and forms a closed circuit, and a high frequency voltage is applied to heat the metal band plate, which melts the overlapping gauze of the waterproof sheet and the coating layer on the surface of the metal band plate, ensuring safe operation. The sound is welded together.

[Brief explanation of drawings]

Fig. 1 is a partially cutaway front view of the main parts in the construction process of one of the waterproof sheeting methods for buildings according to the present invention, Fig. 2 is a left side view of the same as above, and Fig. 3 is after the tarpaulin sheeting is completed. FIG. 4 is an enlarged longitudinal sectional side view of the main parts of another building according to the present invention after the waterproof sheeting has been completed. be. l... Base layer of the surface of the building to be waterproofed, 2a.
2b... Waterproof sheet, a-b... Overlapping opposing edges of the waterproof sheet, 3.3b... Band-shaped metal plate, 4... Adhesive layer, 14... Waterproof sheet and weldable paint film layer on the surface of the strip metal plate 3a, 15... Screws for fixing the strip metal plate 3a, 5...
...Hand type high frequency heating device, 6...
- High frequency generator, 7... Tuning part of the extension connection point of the coaxial cable 8 derived from the high frequency generation WaS, 9.
...Top electrode, 10...Handle, 11...
...Earth electrode, 12...Insulator,

Claims (2)

[Claims] (1) In a waterproof sheet installation method in which waterproof sheets are sequentially laid on the surface of a building to be waterproofed, and the opposing edges of both adjacent waterproof sheets are overlapped and welded, the opposing edges of both adjacent sheets are placed at the position where they should be overlapped. In this method, a band-shaped metal plate is temporarily fixed on the base layer in advance, and the opposite edges of both waterproof sheets are placed on top of it, and a high-frequency heating device is used to weld the overlapping edges. This device is equipped with a tuning section at the extension connection point of the coaxial cable led out from the device, a ground electrode near the tuning section, an upper electrode on the ground electrode via an insulator, and a handle. The upper electrode and the ground electrode are stacked and pressed onto the band-shaped metal plate on the facing and overlapping edges of both waterproof sheets, and the band-shaped metal plate also serves as the lower electrode to form a closed circuit and apply a high-frequency voltage. and welding opposing overlapping edges of both adjacent waterproof sheets. (2) Spread waterproof sheets one after another on the surface of the building that is to be waterproofed, and at the position where the opposite edges of both adjacent waterproof sheets should overlap, over the entire length of the base layer, weldable to the waterproof sheet on the surface. A band-shaped metal plate provided with a coating layer is fixed, and the opposing overlapping edges of both adjacent waterproof sheets are overlapped and welded together.The welding is performed using a high-frequency heating device, and this device is heated by a high-frequency generator. A tuning part is provided at the extended connection point of the coaxial cable that has been led out, a ground electrode is provided near the tuning part, an upper electrode is formed on the ground electrode part via an insulator, and a handle is provided. The upper electrode and the ground electrode are placed on a strip-shaped metal plate on a waterproof sheet and pressed together, and the strip-shaped metal plate also serves as the lower electrode to form a closed circuit and a high-frequency voltage is applied. A method for installing a waterproof sheet for buildings, characterized by welding the edge to a band-shaped metal plate along its entire length.