JP2001123593A - Waterproof sheet laying method and connection position determining jig for use therein - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a waterproof sheet laying method for easily and correctly abutting the center of a high-frequency oscillating head of a high-frequency heating device on a central portion of a fixed member via a waterproof sheet, and to provide a connection position determining jig for use in the method. SOLUTION: There is provided a connection position determining jig having a guide hole for determining a connection position. The guide hole is formed in a midpoint of a nonconductive plate having a thickness almost corresponding to a fixed member which is for use in laying work of the waterproof sheet, and has a size larger than the rim of the fixed member and smaller than the rim of a high-frequency oscillating head. The thus formed jig is mounted on the fixed member via the waterproof sheet so that the guide hole corresponds to the fixed member, and thereafter the high-frequency oscillating head is abutted on the guide hole, whereby the fixed member is connected to the waterproof sheet by high-frequency induction heating.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a waterproof sheet laying method for laying a waterproof sheet on the surface of a frame of a structure and a jig for positioning the waterproof sheet used for the method.

[0002]

2. Description of the Related Art Conventionally, a waterproof sheet made of a synthetic resin is generally laid on a surface of an outdoor frame of a structure such as a building or a house by a mechanical fixing method in order to prevent infiltration of rainwater or the like. It has been done. This mechanical fixing method is also called an insulation method, in which a disk-shaped fixing member made of a thermoplastic resin-coated steel plate such as a vinyl chloride resin is provided on the surface of a skeleton of a structure by using an open leg nail, a curl plug, or the like. A large number of fixing devices such as screws and the like are fixedly installed in a dotted state, and a waterproof sheet made of a resin compatible with the thermoplastic resin is spread on the surface of the skeleton so as to cover the fixing members, and the fixing members are fixed. The waterproof sheet is laid by bonding to the thermoplastic resin layer on the upper surface by heat, bonding by a solvent or an adhesive, or bonding by high frequency induction heating.

[0003] Among the above-mentioned joining means, the joining means using high-frequency induction heating does not cause a worker to be injured by touching a heat source and causes a burn. Good in terms of environmental hygiene because joining work can be completed in a short time without the need for complicated work of applying the agent, and the work efficiency is high, and it is possible to avoid the worker inhaling the vapor of the chemical agent due to the application work, and it is environmentally friendly It is.

As described above, when using a high-frequency welding apparatus utilizing high-frequency induction heating in the work of laying a waterproof sheet, a fixing member made of, for example, the above-mentioned thermoplastic resin-coated steel sheet is used as a plate-like fixing member for joining the waterproof sheet. Like a steel plate of a member, a plate-like body in which a conductor capable of induction heating by high-frequency irradiation and a thermoplastic resin are laminated and integrated is applied. The plate-like body is often in the shape of a disk or a square plate, but some have a vertical cross section in a trapezoidal shape.

[0005]

By the way, as described above, the method of laying a waterproof sheet for joining a waterproof sheet to a plate-like fixing member by using high-frequency induction heating is described in terms of safety, work efficiency, and environmental hygiene. Although it is an excellent method from above,
There are the following problems.

That is, as shown in FIG. 4, a waterproof sheet (7)
When the fixing member (5) to be joined through the intermediary is smaller than the high-frequency oscillation head (10) of the high-frequency heating device, the fixing member (5) is hidden by the waterproof sheet (7). It is difficult to make the center of the oscillation head (10) correspond exactly to the center of the fixing member (5) (solid line), and the center of the high-frequency oscillation head (10) is often positioned from the center of the fixing member (5). The fixing member (5) is inclined with respect to the surface of the fixing member (5) (indicated by a two-dot chain line), and the bonding strength between the fixing member (5) and the waterproof sheet (7) is reduced. ) Is heated excessively, and the nearby waterproof sheet (7) is abnormally deformed (7).
a), and when the heat insulation method is employed, there is a problem that the heat insulation layer (9) in contact with the vicinity of the lower surface of the edge portion (5a) causes melt fracture (9a).

The high-frequency oscillation pattern and strength of the high-frequency oscillation head oscillated from the high-frequency oscillation head toward the fixed member are determined by the shape of the high-frequency oscillation head, the winding pattern of the heating work coil inside the head, and the number of turns. , The high-frequency output, frequency, oscillation time, etc. applied to it. For example, as shown in FIG. 5, as a high-frequency heating device for laying a waterproof sheet using a disc-shaped fixing member, a high-frequency oscillation head (1) having a circular oscillation surface is usually used.
0) is used, and the high frequency oscillated from the oscillation surface is designed to oscillate with a substantially ring-shaped oscillation region (P) having a fixed width, and the oscillation region (P) Is most projected on the inner side than the peripheral edge of the fixing member (5), the most effective high-frequency induction heating is exerted. Therefore, the joining between the waterproof sheet and the fixing member by the high-frequency heating device is performed by the high-frequency oscillation head. It is necessary to exactly correspond the center of the fixing member to the center of the fixing member.

As means for solving the above-mentioned problems, conventionally, for example, the positional relationship between the high-frequency head and the fixing member and the heat between the fixing member and the waterproof sheet are determined by the impedance change of the heating work coil installed in the high-frequency head. In order to detect the fusion state, it has been proposed to use a sensor provided with a circuit for detecting a change in impedance, which is disclosed in Japanese Patent Application Laid-Open No. 05-315064.

However, the impedance change of the heating work coil does not change constantly depending on the amount of the conductor constituting the fixing member, the distance from the work coil, and the like. Therefore, it becomes difficult to detect. Further, when a conductive material such as aluminum foil is attached to the back surface of the waterproof sheet for the purpose of detecting water leakage or the like, there is a problem that the impedance change becomes large, and the sensor reacts excessively and performs erroneous detection.

Further, in the high-frequency heating apparatus having the above-described sensor, the joining operation is performed while following the reaction of the sensor in order to accurately capture the center of the fixing member. Since the sensor part has a precise structure, it must be handled carefully, and if a failure occurs, it takes time and effort to repair it, and the handling is troublesome.

The present invention has been made in view of such a technical background,
In order to solve the problem of the waterproof sheet laying means using high-frequency induction heating, if an auxiliary jig for specifying the installation position of the fixing jig from the top of the waterproof sheet in advance is used, precision as in the past can be achieved. The present invention has been completed by paying attention to the fact that the waterproof sheet and the fixing member can be joined by heating and melting easily and accurately without using a simple device.

According to the present invention, when the waterproof sheet is joined to the fixing member by high-frequency induction heating, the center of the high-frequency oscillation head of the high-frequency heating device is easily and accurately brought into contact with the center of the fixing member via the waterproof sheet. It is an object of the present invention to provide a waterproof sheet laying method that can be in contact with and a joining positioning jig used for the method.

[0013]

That is, a first aspect of the present invention is to dispose a plurality of plate-shaped fixing members in which a thermoplastic resin and a conductor are integrated on a surface of a body requiring waterproofing. After being fixedly installed in the waterproofing sheet, a waterproofing sheet made of a thermoplastic resin is spread on the skeleton surface, and the waterproofing sheet is joined to the upper surface of the fixing member by high-frequency induction heating. A joint positioning jig made of a non-conductive plate having a corresponding thickness, and provided with a guide hole larger than the outer periphery of the fixed member and smaller than the outer periphery of the high-frequency oscillation head, After the guide hole is aligned with the corresponding position of the fixing member fixedly installed on the body surface and placed on the waterproof sheet, the high-frequency oscillation head is arranged on the waterproof sheet in accordance with the guide hole. And gist laying method of the waterproof sheet, characterized in that joining the fixed member by high-frequency induction heating and the waterproof sheet.

According to the first aspect, the joining positioning jig made of a non-conductive plate provided with the guide hole is aligned with the corresponding position of the fixing member fixedly mounted on the body surface. After being placed on the waterproof sheet, the high-frequency oscillation head is placed on the waterproof sheet in accordance with the guide hole as a guide and irradiated with high frequency, thereby inductively heating the conductor of the fixing member. Thus, since the fixing member and the waterproof sheet are joined by heating and melting, the joining between the two is performed within the outer peripheral edge of the fixing member by a fixed width centered on the center of the plate-shaped fixing member. It is made precisely in the shape of a ring, and strong bonding strength is secured.

According to the above waterproof sheet laying method, the high-frequency oscillation head is mounted with the guide holes of the joint positioning jigs being previously matched with the corresponding positions of the fixing members from above the waterproof sheet. By simply doing so, the high-frequency oscillation head can be accurately arranged in correspondence with the center of the fixing member, and the high-frequency oscillation head has a peripheral portion around the guide hole of the joint positioning jig. It is supported and is contacted in parallel with the fixing member surface without being inclined, so that the joining operation is extremely simple and accurate.

Next, a second invention of the present invention is to provide a method in which a plurality of plate-like fixing members in which a thermoplastic resin and a conductor are integrated are fixedly mounted on a surface of a body requiring waterproofing. ,
A bonding positioning jig used for a method of laying a waterproof sheet that spreads a waterproof sheet made of a thermoplastic resin on the body surface and joins the waterproof sheet to an upper surface of the fixing member by high-frequency induction heating. It is made of a non-conductive plate having a thickness substantially corresponding to the member, and a guide hole larger than the outer periphery of the fixed member and smaller than the outer periphery of the high-frequency oscillation head is provided. The jig for positioning the waterproof sheet is characterized in that the head positioning index is drawn.

According to the second aspect of the present invention, the joining positioning jig is made of a non-conductive plate having a thickness substantially corresponding to the fixed member, and is larger than the outer periphery of the fixed member. A guide hole smaller than the guide hole is provided, and a head positioning index for positioning the high-frequency oscillation head is drawn on the upper surface, so that the center of the high-frequency oscillation head is easily and accurately positioned at the center of the fixing member. And the joining operation between the fixing member and the waterproof sheet can be performed more reliably. Also, since the joining positioning jig can be easily manufactured, a large number of such jigs are prepared, placed on a waterproof sheet in advance corresponding to a plurality of fixing members, and sequentially joined by a high-frequency heating device. In this case, the joining operation can be performed more efficiently.

In a preferred embodiment of the second invention, since the head positioning index is a joining positioning jig comprising an annular index line similar to a guide hole, the high-frequency oscillation head is matched with the annular index line. With only this, the center of the high-frequency oscillation head can instantaneously correspond to the center of the plate-shaped fixing member.

Further, another preferred embodiment of the second invention is a joint positioning jig in which a plurality of radial index lines for positioning a plurality of jigs indicating the center of the guide hole are drawn on the upper surface. Therefore, the center of the guide hole can be more easily and more accurately aligned with the center of the fixing member from above the waterproof sheet according to the radial index line.

Further, in another preferred embodiment of the second invention, the thickness of the joining positioning jig is set in a range of +0.5 to -0.2 mm with respect to the thickness of the fixing member. The high frequency oscillation head is supported around the guide hole of the bonding positioning jig, and is parallel to the fixing member surface without being inclined with respect to the fixing member surface. Since the waterproof sheet can be pressed uniformly and appropriately against the upper surface of the fixing member, the joining operation can be performed more accurately and reliably.

[0021]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The embodiments of the present invention will be described below with reference to the accompanying drawings. As the fixing member for joining the waterproof sheet, a disk-shaped member made of a thermoplastic resin-coated steel sheet will be described. The material is a thermoplastic resin layer compatible with the waterproof sheet and a high-frequency induction heating. Any shape may be used as long as the heat-generating conductive layer is laminated and integrated, and the shape may be other shapes such as a rectangular plate shape.

FIGS. 1A and 1B show a joining positioning jig used in the method of laying a waterproof sheet according to the present invention.
1A is a perspective view, and FIG. 1B is a cross-sectional view taken along line AA of FIG. The joining positioning jig (1) is made of, for example, a hard or soft synthetic resin plate, and has a guide hole (2) in the middle.

The guide holes (2) are provided in FIG. 1 (a) in order to clearly indicate the locations of the fixing members (5) which are fixedly installed in a scattered arrangement on the body surface to be waterproofed. Thus, the high-frequency oscillation head of the high-frequency heating device is placed on the waterproof sheet so as to match with the fixing member (5), and is arranged on the waterproof sheet in accordance with the guide hole (2). The fixed member (5) is brought into contact with the fixed member (5) in an appropriate positional relationship, and is formed to be larger than the outer periphery of the fixed member (5) by, for example, about 5 mm in each peripheral portion, and the high-frequency oscillation head is provided. Is formed to be smaller than the outer circumference.

In the present invention, the guide hole (2) of the joint positioning jig (1) is used as a guide so that the high-frequency oscillation head can be aligned with the corresponding position of the fixing member (5). However, in order to further ensure this, a head positioning index (3) for positioning the high-frequency oscillation head is drawn on the upper surface of the joining positioning jig (1). The head positioning index (3) includes, for example, an annular index line (3a) similar in shape to the guide hole (2), and is drawn concentrically with the guide hole (2). In this case, the annular index line (3a)
Is preferably drawn larger than the outer periphery of the high-frequency oscillation head within a range not covered by the high-frequency oscillation head. Note that the head positioning index (3) is not limited to a linear shape, and may be any type of drawing such as a dot-string drawing, a band-like drawing, and a color-drawing drawing as long as it indicates the outline of the high-frequency oscillation head. Further, the high-frequency oscillation head may be three-dimensionally drawn so as to fit therein.

Further, in the present invention, on the upper surface of the joint positioning jig (1), a plurality of jig-positioning radial index lines (4) pointing to the center of the guide hole (2) are provided.
Is drawn. Each of the radial index lines (4) is drawn as a straight line pointing to the center of the guide hole (2), and the direction of each of the radial index lines (4) with respect to the center of the fixing member (5). By aligning them, the joining positioning jig (1) can be arranged in a state where the fixing member (5) is located in the middle of the guide hole (2).

FIG. 2 is a partial sectional view showing a state where the waterproof sheet is joined to the fixing member according to the present invention. In the figure, first, a plurality of fixing members (5) are scattered and arranged on a surface of a concrete body (8) by a fixing tool (6) such as an open nail via a heat insulating layer (9) of polyurethane foam or the like. After being fixedly installed, the waterproof sheet (7) is extended so as to cover the entire surface of the frame (8), and the joint positioning jig (1) is provided with a guide hole (2) corresponding to the fixing member (5). Place on the waterproof sheet (7) so as to match the position.

Next, the high-frequency oscillation head (10) of the high-frequency heating device is arranged on the waterproof sheet (7) in alignment with the guide hole (2), and the center (m) of the high-frequency oscillation head is set to the fixed member (5). The contact is made via the waterproof sheet (7) so as to correspond to the central portion (n). At this time, since the outer periphery of the high-frequency oscillation head (10) is brought into contact with the waterproof sheet (7) according to the contour of the annular index line (3a), the center (m) of the high-frequency oscillation head (10) is It corresponds exactly to the central part (n) of the plate-shaped fixing member (5).

Next, when a high frequency is oscillated from the high frequency oscillation head (10), the layer of the conductor (5a) of the fixing member (5) is dielectrically heated in the oscillation region (P) oscillating in a ring shape, The layer of the thermoplastic resin (5b) is heated and melted, and the waterproof sheet (7) in contact with the layer of the thermoplastic resin (5b) is heated and softened to form the thermoplastic resin (5).
b), and the bonding between the fixing member (5) and the waterproof sheet (7) is achieved.

FIG. 3 is a partially cutaway plan view showing a use state of the joining positioning jig (1). In the figure, the shape and dimensions of the joint positioning jig (1) are such that the guide hole (2) matches the corresponding position of the fixing member (5), and the high-frequency oscillation head (10) covers the guide hole (2). There is no particular limitation as long as the fixing member (5) can be abutted on the fixing member (5) via the waterproof sheet (7) so as to hide the shape. It is sufficient that the size is about two to three times the size of the guide hole (2).

In the present invention, as apparent from FIG. 2, the peripheral portion (10) of the high-frequency oscillation head (10) is used.
a) is a jig for positioning and joining around the guide hole (2) (1)
High-frequency oscillation head (1
When (0) contacts the waterproof sheet (7), it is possible to prevent the joining positioning jig (1) from inclining and contacting with the fixing member (5). Therefore, the thickness (t) of the joining positioning jig (1) needs to correspond to the thickness of the fixing member (5), but is not strict, and is preferably +0.5 to-with respect to the thickness. It is desirable to set the thickness in the range of 0.2 mm. If it is less than this range, the effect of preventing the fixing jig (5) from tilting is reduced, and if it exceeds this range, the pressing force is applied without the surface of the high-frequency oscillation head (10) coming into contact with the waterproof sheet (7). No bonding strength can be obtained. Therefore, in practice, it is more desirable to make the same as the fixing member (5).

As described above, according to the waterproof sheet laying method and the joint positioning jig used in the present invention, the position of the fixing member fixedly mounted on the body is determined by the joint positioning jig via the waterproof sheet. After arranging the jig positioning jig from the top of the waterproof sheet so that its guide hole matches the corresponding position of the fixing member, the high frequency oscillation head is aligned with the guide hole. Since it is possible to uniformly contact the fixing member via the waterproof sheet, if this state is maintained and high-frequency irradiation is performed to cause the conductor of the fixing member to generate heat by induction heating, the fixing member and the waterproof sheet are separated. Joining can be performed in a precise relative positional relationship. Therefore, a ring-shaped melt-bonded portion having a fixed width centered on the central portion of the fixing member is reliably formed in the outer peripheral edge of the fixing member, and a strong bonding strength can be secured.

[0032]

DESCRIPTION OF THE PREFERRED EMBODIMENTS A waterproof sheet is laid on a flat roof made of a concrete body and a steel sheet coated with a polypropylene resin through a heat insulating layer made of polyurethane foam with a thickness of 25 mm, with a thickness of 1 mm and a diameter of 65 mm.
A large number of disk-shaped fixing members are fixedly arranged in a dotted arrangement, a waterproof sheet made of a polypropylene resin having a thickness of 1.5 mm is spread on the skeleton surface, and the waterproof sheet is joined by high-frequency induction heating. It was adopted.

Next, as a bonding positioning jig, a thickness 1
mm, a polypropylene resin sheet having a side length of 200 m is prepared, and in the same manner as in FIG. 1, a circular guide hole having a diameter of 75 mm is provided in the center, and each diagonal line passing through the center around the guide hole and each A plurality of radial index lines composed of side center dividing lines and a ring-shaped head positioning index having an inner contour of 120 mm in diameter and 5 mm in width were drawn and colored.

Then, the joint positioning jig is placed on the waterproof sheet so that the fixing member is positioned at the center of the guide hole in accordance with the radial index line.
A high-frequency oscillating head having a diameter of 120 mm is aligned with the head positioning index, abuts against the fixing member via a waterproof sheet, oscillates a high frequency (500 kHz) while pressing, and heats a required portion of the fixing member and the waterproof sheet. Fused and joined.

The joint portion between the fixing member and the waterproof sheet joined as described above is uniformly melt-joined in a ring shape around the center of the fixing member within the outer peripheral edge of the fixing member. It has a strong bonding strength.

The time required for the joining operation by the high-frequency oscillation head was 3 to 5 seconds per joint. In addition, the bonding state was extremely good, and there was no melting collapse of the heat insulating layer. <Comparative Example> Without using a bonding positioning jig as in the above-described embodiment, when a bonding operation was performed using a normal high-frequency heating device on the same construction target as in the embodiment, the waterproof sheet and the fixing member were The joint was unevenly joined to a part of the peripheral edge, and the joint strength became insufficient. The heat insulation layer has no adverse effects such as melting and collapse,
The time required for the joining operation was almost the same as in the example.

By the way, when a conventional high-frequency heating apparatus with a sensor for detecting a change in impedance of a heating work coil was used to perform a joining operation on the same construction target as in the embodiment, the joining state was extremely good. As a result, melting collapse of the heat insulating layer was observed. The time required for the joining operation was about 10 seconds per one joint. In particular, setting the contact position of the high-frequency oscillation head was troublesome.

[0038]

As described above, according to the first aspect of the present invention, a large number of plate-like fixing members in which a thermoplastic resin and a conductor are integrated are scattered on the surface of a body requiring waterproofing. After being fixedly installed in the arrangement, a waterproof sheet made of a thermoplastic resin is spread on the body surface, and the waterproof sheet is laid on the upper surface of the fixing member by high-frequency induction heating. Using a joint positioning jig made of a non-conductive plate having a substantially corresponding thickness, and provided with a guide hole larger than the outer periphery of the fixed member and smaller than the outer periphery of the high-frequency oscillation head, After aligning the guide hole with the corresponding position of the fixing member fixedly installed on the skeleton surface and mounting the guide hole on the waterproof sheet, the high-frequency oscillation head is arranged on the waterproof sheet in accordance with the guide hole. Since the fixing member and the waterproof sheet are joined by high-frequency induction heating, the high-frequency oscillation head can be uniformly and reliably abutted on the fixing member via the waterproof sheet, and the fixing member And the waterproof sheet can be assured of a strong bonding strength, and there is an effect that thermal deformation of a nearby waterproof sheet and melting destruction of a heat insulating layer do not occur.

Therefore, according to the method for laying the waterproof sheet, a precise device for detecting the fixing member is not required unlike the related art, so that there is no inconvenience due to failure of the device and no troublesome handling. There is an advantage that no skill is required for construction.

According to the second aspect of the present invention, a plurality of fixing members in which a thermoplastic resin and a conductor are integrated are fixedly mounted on the surface of a skeleton requiring waterproofing, and then the surface of the skeleton is fixed. A bonding positioning jig used for a method of laying a waterproof sheet on which a waterproof sheet made of a thermoplastic resin is spread, and the waterproof sheet is joined to an upper surface of the fixing member by high-frequency induction heating. A non-conductive plate having a corresponding thickness, a guide hole larger than the outer periphery of the fixing member and smaller than the outer periphery of the high-frequency oscillation head, and a head positioning for positioning the high-frequency oscillation head on the upper surface. Since the index is drawn, the position of the fixing member can be easily specified, and the high-frequency oscillation head can be easily moved according to the head positioning index. Can be matched to the central portion of the serial fixing member, there is an effect that it is possible to efficiently contact via a waterproof sheet the high-frequency oscillation head.

Further, the above-mentioned joining positioning jig can be easily manufactured because its structure is extremely simple and its manufacturing cost is low. If they are placed on top of each other and are sequentially joined by a high-frequency heating device, there is an advantage that the joining operation can be performed more efficiently and the operation cost can be reduced.

Further, in the above-mentioned joint positioning jig, since the head positioning index is a joint positioning jig composed of an annular index line similar to the guide hole, the high-frequency oscillation head can be used. The center of the high-frequency oscillation head can be instantaneously made to correspond to the center of the plate-shaped fixing member only by making it coincide with the annular index line, and there is an advantage that the joining operation can be more efficiently performed.

Further, in the above-mentioned joining positioning jig, a plurality of jig-arranging radial index lines pointing to the center of the guide hole are drawn on the upper surface. Because it is a positioning jig, the center of the guide hole can be easily and more accurately matched to the center of the fixing member according to the radial index line,
Since the position of the fixing member can be specified more easily and more accurately, there is an advantage that the joining operation can be performed more reliably.

Further, in the above-mentioned joint positioning jig, the thickness of the joint positioning jig is in a range of +0.5 to -0.2 mm with respect to the thickness of the fixing member. Since the bonding positioning jig is set, the high-frequency oscillation head is supported in parallel with the periphery of the guide hole of the bonding positioning jig without being inclined with respect to the surface of the fixing member. Since the waterproof sheet can be pressed uniformly and appropriately against the upper surface of the fixing member, the joining operation can be performed more accurately and reliably. Therefore, the bonding strength between the fixing member and the waterproof sheet can be reliably ensured, and the fixing member is not locally abnormally heated, so that thermal deformation of the nearby waterproof sheet and melting and destruction of the heat insulating layer are prevented. There is an advantage that it can be prevented.

[Brief description of the drawings]

FIG. 1 shows a joining positioning jig used in the present invention,
1 (A) is a perspective view, and FIG. 1 (B) is AA of FIG. 1 (A).
It is a line sectional view.

FIG. 2 is a partial cross-sectional view showing a joint state between a waterproof sheet and a fixing member according to the present invention.

FIG. 3 is a partially cutaway plan view showing a use state of a joining positioning jig according to the present invention.

FIG. 4 is a cross-sectional view showing a joint state between a conventional waterproof sheet and a fixing member.

FIG. 5 is a conceptual diagram for explaining a high-frequency oscillation state of the high-frequency oscillation head in relation to a fixed member.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Joint positioning jig 2 ... Guide hole 3 ... Head positioning index 3a ... Annular index line 4 ... Radial index line 5 ... Fixing member 6 ... Fixture 7 ... Waterproof sheet 8 ... Body 9 ... Heat insulation layer 10 ... High frequency oscillation head

Claims (5)

[Claims] 1. A plate-like fixing member in which a thermoplastic resin and an electric conductor are integrated is fixedly installed in a scattered arrangement on a skeleton surface requiring waterproofing, and then a thermoplastic resin is formed on the skeleton surface. In a method for laying a waterproof sheet, the waterproof sheet is bonded to the upper surface of the fixing member by high-frequency induction heating, the method comprises a non-conductive plate having a thickness substantially corresponding to the fixing member, and Using a joint positioning jig provided with a guide hole larger than the outer periphery of the fixed member and smaller than the outer periphery of the high-frequency oscillation head, the joint positioning jig is placed at a position corresponding to the fixed member fixedly installed on the body surface. After the guide holes are aligned and placed on the waterproof sheet, the high-frequency oscillation head is arranged on the waterproof sheet in alignment with the guide holes, and the fixing member and the waterproof member are heated by high-frequency induction heating. A method for laying a waterproof sheet, comprising joining the sheet with a sheet. 2. A plate-shaped fixing member in which a thermoplastic resin and an electric conductor are integrated is fixedly installed in a scattered arrangement on a skeleton surface requiring waterproofing, and then a thermoplastic resin is formed on the skeleton surface. A bonding positioning jig used in a method of laying a waterproof sheet that spreads a waterproof sheet, and joins the waterproof sheet to the upper surface of the fixing member by high-frequency induction heating, and has a thickness substantially corresponding to the fixing member. A guide hole made of a non-conductive plate is provided that is larger than the outer periphery of the fixed member and smaller than the outer periphery of the high-frequency oscillation head.
A bonding jig for a waterproof sheet, wherein a head positioning index for positioning a high-frequency oscillation head is drawn on an upper surface. 3. The jig for positioning a waterproof sheet according to claim 2, wherein the head positioning index comprises an annular index line similar to a guide hole. 4. A jig for positioning a waterproof sheet according to claim 2, wherein a plurality of radial index lines for positioning a plurality of jigs indicating the centers of the guide holes are drawn on the upper surface. 5. The method according to claim 2, wherein the thickness of the joining positioning jig is set in a range of +0.5 to −0.2 mm with respect to the thickness of the fixing member. The jig for positioning the waterproof sheet described in the above.