JP7441667B2 - Tarpaulin sheet joining device and waterproof sheet joining method - Google Patents

Description

The present invention relates to a waterproof sheet joining device and a waterproof sheet joining method.

BACKGROUND ART In recent years, as buildings are required to be more durable, sheet waterproof structures in which a waterproof sheet is installed have been adopted on the rooftops and balconies of many buildings.

In this sheet waterproof structure, when laying a waterproof sheet on the floor as a frame, for example, the edges of two waterproof sheets are overlapped vertically, and the overlapping parts are joined with adhesive. Are known.

When joining the overlapping parts of waterproof sheets with adhesive, it has been proposed to use a supply device to supply the adhesive to the overlapping parts (for example, see Patent Document 1).

The supply device described in Patent Document 1 includes a tank that stores an adhesive, a tube that is connected to the tank and through which the adhesive passes, and a distal end of the tube that is located on the opposite side of the tank and that stores the adhesive. and a nozzle for discharging into the overlapping portion.

In this supply device, the adhesive stored in the tank is supplied through a tube from the tip of the nozzle to the overlapping part of the waterproof sheets, and then the supply device supplies the adhesive stored in the tank from the front side to the waterproof sheet located on the upper side. The waterproof sheets are joined to each other at the overlapping portions by rolling with rollers.

However, in a supply device having such a configuration, there is a problem in that the self-weight of the supply device is applied, and if this self-weight becomes too large due to the accumulation of adhesive in the tank, wrinkles occur in the waterproof sheets at the overlapped portions. there were.

Moreover, such a problem is not limited to the case where the supply device described in Patent Document 1 is used to supply the adhesive stored in the tank to the overlapping part of the waterproof sheets, but also when a solvent is used instead of the adhesive. A similar problem occurs when the liquid material is stored in a tank and the solvent is supplied to the overlapping portions of the waterproof sheets to weld the waterproof sheets together using the solvent.

Publication number 05-012027

An object of the present invention is to prevent the waterproof sheets located at the overlapped portion from being overloaded due to excessive self-weight when joining the waterproof sheets together at the overlapped portion using a waterproof sheet joining device. It is an object of the present invention to provide a waterproof sheet joining device that can accurately suppress or prevent the occurrence of wrinkles, and a waterproof sheet joining method using such a waterproof sheet joining device.

Such objects are achieved by the present invention described in (1) to ( 6 ) below.
(1) A waterproof sheet joining device used when laying a waterproof waterproof sheet on a floor surface of a building frame using a liquid material containing a solvent or adhesive,
a supply system that supplies the liquid material to the waterproof sheet;
a traveling system having a rotatably supported roller and traveling together with the supply system as the roller rotates;
By supplying the liquid material to an overlapping part formed by overlapping a first tarpaulin sheet and a second tarpaulin sheet of the tarpaulin sheet at their edges with the second tarpaulin sheet on the lower side, 1 waterproof sheet and the second waterproof sheet are joined,
After the liquid material is supplied by the supply system to the overlapping portion where the first waterproof sheet and the second waterproof sheet overlap, the liquid material is supplied by the rollers included in the traveling system. The overlapping portion is configured to be rolled from the front side of the first waterproof sheet,
The supply system includes a storage section that stores the liquid material;
a channel that communicates with the storage section and through which the liquid material passes;
a nozzle that communicates with the flow path and discharges the liquid material that has passed through the flow path to the overlapping portion,
The traveling system includes a first vehicle body having the rollers;
does not have the roller, and includes a second vehicle body in which at least the storage section is mounted in the supply system;
In the traveling system, the roller runs along a traveling line along which the front side of the first waterproof sheet is rolled along the overlapping portion;
In the supply system, at least the storage section is configured to run on a line different from the travel line.

(2) When the load applied to the waterproof sheet by the traveling system is A [N], and the load applied to the waterproof sheet by the supply system is B [N], it is configured to satisfy the relationship A<B. The waterproof sheet joining device according to (1) above.

(3) The waterproof sheet joining device according to (1) or (2) above, wherein the travel line and the line are parallel.

( 4 ) The first vehicle body and the second vehicle body are arranged facing each other with a gap in the direction perpendicular to the traveling line, and at this arrangement position, the vehicle bodies are connected to each other with a biasing member. The waterproof sheet joining device according to any one of (1) to (3) above, which is connected by a plate.

( 5 ) The first vehicle body travels on the overlapping portion located on the traveling line, and the second vehicle body travels on the line located on the second waterproof sheet side . ) The waterproof sheet joining device described in any of the above .

( 6 ) A method for joining waterproof sheets, comprising a joining step of joining the waterproof sheets using the waterproof sheet joining apparatus according to any one of (1) to ( 5 ) above.

According to the present invention, when the tarpaulin sheets are joined together at the overlapped portion of the tarpaulin sheets using the tarpaulin joining device, even if the weight of the tarpaulin sheet joining device is large, the own weight is applied to the overlapping portion. can be accurately suppressed. Therefore, it is possible to accurately suppress or prevent wrinkles from forming on the waterproof sheets located in the overlapping portions.

FIG. 1 is a perspective view showing a first embodiment of a waterproof sheet joining device of the present invention. 2 is a side view seen from the direction of arrow A in FIG. 1. FIG. 2 is a plan view seen from the direction of arrow B in FIG. 1. FIG. 2 is a plan view seen from the direction of arrow C in FIG. 1. FIG. FIG. 2 is a vertical partial sectional view showing a state in which the waterproof sheet joining device shown in FIG. 1 is moving forward; FIG. 2 is a vertical partial sectional view showing the waterproof sheet joining device shown in FIG. 1 in a retracted state. FIG. 2 is a perspective view showing a second embodiment of the waterproof sheet joining device of the present invention. It is a side view which shows 3rd Embodiment of the waterproof sheet joining apparatus of this invention. FIG. 7 is a vertical partial cross-sectional view showing a fourth embodiment of the waterproof sheet joining device of the present invention. It is an exploded perspective view showing an example of a construction state of a waterproof sheet. It is an exploded perspective view showing an example of a construction state of a waterproof sheet.

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a waterproof sheet joining apparatus and a waterproof sheet joining method of the present invention will be described in detail based on preferred embodiments shown in the accompanying drawings.

The waterproof sheet joining device of the present invention is used when laying a waterproof waterproof sheet on a floor surface of a building frame using a liquid material containing a solvent or an adhesive, A supply system that supplies the waterproof sheet, and a traveling system that has a rotatably supported roller and travels together with the supply system when the roller rotates, and the first waterproof sheet and the first waterproof sheet that the waterproof sheet has By supplying the liquid material to the overlapping part formed by overlapping the second waterproof sheet and the second waterproof sheet at the edges with the second waterproof sheet on the lower side, the first waterproof sheet and the second waterproof sheet are separated. After the liquid material is supplied by the supply system to the overlapping portion where the first waterproof sheet and the second waterproof sheet overlap, the liquid material is supplied by the rollers included in the traveling system. The roller is configured to roll the overlapping portion from the front side of the first waterproof sheet, and in the traveling system, the roller rolls along the overlapping portion so that the front side of the first waterproof sheet rolls. It is configured to run on a pressured running line.

With this configuration, since the supply system travels on a supply line different from the travel line, the load applied to the waterproof sheet by the travel system is set to A[N], and the load applied to the waterproof sheet by the supply system is set to A[N]. When the load applied to is B[N], the relationship A<B can be satisfied.

Therefore, when using this tarpaulin sheet joining device to join tarpaulin sheets together at their overlapping portions, even if the tarpaulin sheet joining device has a large weight, the relationship A<B can be satisfied. , it is possible to accurately suppress its own weight from being applied to the overlapping portion. Therefore, it is possible to accurately suppress or prevent wrinkles from forming on the waterproof sheets located in the overlapping portions. This waterproof sheet joining device will be described in detail below.

<<Waterproof sheet joining equipment>>
<First embodiment>
1 is a perspective view showing a first embodiment of the waterproof sheet joining device of the present invention, FIG. 2 is a side view seen from the direction of arrow A in FIG. 1, and FIG. 3 is a side view seen from the direction of arrow B in FIG. 4 is a plan view as seen from the direction of arrow C in FIG. 1, FIG. 5 is a vertical partial cross-sectional view showing the state in which the waterproof sheet joining device shown in FIG. 1 is moving forward, and FIG. , FIG. 10 is an exploded perspective view showing an example of a waterproof sheet construction state, and FIG. 11 is an example of a waterproof sheet construction state. FIG.

In the following, for convenience of explanation, the upper side in FIGS. 1, 2, and 5 to 11 will be referred to as "upper (or upper)" or "front side," and the lower side will be referred to as "lower (or lower)" or "back side." ” he says. Further, the diagonally lower left side in FIGS. 1 and 7, the left side in FIG. 2, the lower side in FIGS. 3 and 4, and the left side in FIGS. 5 and 6 is referred to as "front (or front)." Further, the diagonally upper right side in FIGS. 1 and 7, the right side in FIG. 2, the upper side in FIGS. 3 and 4, and the right side in FIGS. 5 and 6 are referred to as "rear (or rear)." Further, as shown in FIGS. 1 to 9, three mutually orthogonal axes are defined as an x-axis, a y-axis, and a z-axis. Further, the xy plane including the x-axis and the y-axis is horizontal, and the z-axis is vertical.

A waterproof sheet joining device 1 (hereinafter sometimes simply referred to as a "joining device") shown in FIG. This is a device used for joining the overlapping portions 101 of the waterproof sheets 100, and in this embodiment, a case will be described in which joining is performed by welding using a solvent Q.

In addition, the waterproof sheet 100 is laid (constructed) on a frame, but this frame is not particularly limited, and examples include rooftops and balconies. On the other hand, a waterproof sheet 100 is laid (constructed) using the joining device 1.

Furthermore, the manner in which the waterproof sheets 100 are laid on the floor surface of the building frame by joining the waterproof sheets 100 together at the overlapping portions 101 where the edges thereof overlap using the joining device 1 is not particularly limited, and for example, There are modes shown in FIGS. 10 and 11.

In the embodiment shown in FIG. 10, a strip-shaped tarpaulin sheet 100 (hereinafter also referred to as "tarpaulin sheet 100A") and two tarpaulin sheets 100 having a width larger than the tarpaulin sheet 100A (hereinafter, referred to as "tarpaulin sheet 100B") are used. ). The waterproof sheets 100B are laid next to each other with a gap between them on the floor surface of the frame. The waterproof sheets 100A are laid from above so as to fill the spaces between the waterproof sheets 100B. The waterproof sheet 100A and each waterproof sheet 100B form an overlapping portion 101 by overlapping their edges, and this overlapping portion 101 serves as a joining margin, and the waterproof sheets 100B are joined using the joining device 1. , a waterproof sheet 100 is laid on the floor. That is, the floor surface (floor portion) of the frame is covered with the waterproof sheet 100, thereby waterproofing the floor surface of the frame.

In the embodiment shown in FIG. 10, at least one of the two waterproof sheets 100B may be replaced with a heat insulating panel (arrangement member), that is, a so-called "PVC steel plate." The insulation panel has an inner layer made of various steel plates (metal plates) such as galvalume steel plates (registered trademark) and stainless steel plates, and an outermost layer made of a waterproof sheet (waterproof sheet) similar to waterproof sheet 100B. It is.

In the embodiment shown in FIG. 11, the waterproof sheets 100B are laid on the floor surface of the building frame (hereinafter, the one located on the upper side will be referred to as "waterproof sheet 100BA", and the one located on the lower side will be referred to as "waterproof sheet 100BB"). ) overlap at the edges to form an overlapping part 101 (overlapping part). Then, this overlapping portion 101 serves as a joining margin, and the waterproof sheet 100 is laid on the floor by joining using the joining device 1. That is, the floor surface (floor portion) of the frame is covered with the waterproof sheet 100, thereby waterproofing the floor surface of the frame.

In addition, in the aspect shown in FIG. 11, the lower waterproof sheet 100BB of the two waterproof sheets 100B may be replaced with the above-described heat insulating panel.

Further, in this embodiment, as an example, a case will be described in which the bonding apparatus 1 is used for bonding in the mode shown in FIG. 11.

Note that the constituent material of the waterproof sheet 100 laid on the floor surface is not particularly limited, but examples include vinyl chloride resins such as polyvinyl chloride, polyolefin resins, ethylene-vinyl acetate copolymers, etc. Although one type or a combination of two or more of these can be used, polyvinyl chloride is preferred. Polyvinyl chloride has excellent solvent weldability. Therefore, by joining the waterproof sheets 100 together by welding the solvent Q supplied from the joining device 1, the adhesion between the waterproof sheets 100 can be improved.

The joining device 1 of the present invention is used to lay the waterproof sheet 100 on the floor surface of the frame as described above, and this joining device 1 supplies a solvent Q to the waterproof sheet 100 as shown in FIG. It includes a supply system 10 and a traveling system 9 that travels together with the supply system 10. Hereinafter, the configuration of each part included in the bonding apparatus 1 will be explained.

The traveling system 9 includes a first vehicle body 91A, a second vehicle body 91B, two connecting plates 95 that connect the two vehicle bodies 91A and 91B, and a handle 93 supported and fixed to the upper part of the second vehicle body 91B. are doing.

The second vehicle body 91B includes a frame 94B and four wheels 92B rotatably supported at the bottom of the second vehicle body 91B.

The frame 94B has a top plate 941B, and this top plate 941B alone constitutes a flat frame 94B.

In the frame 94B, as shown in FIG. 1, two pairs of wheels 92B are arranged at the four corners of the top plate 941B so that the pairs thereof face each other. Each wheel 92B is rotatably supported by the top plate 941B. Then, by rotating each wheel 92B, the joining device 1 can travel together with the supply system 10. For example, as shown in FIG. 5, when each wheel 92B rotates in the direction of arrow _β92 , the joining device 1 can be moved forward in the direction of arrow α1. Further, as shown in FIG. 6, when each wheel 92B rotates in the direction of arrow β ₉₂ ′ opposite to arrow β ₉₂ , the joining device 1 can be moved backward in the direction of arrow α2.

The first vehicle body 91A includes a frame 94A and a plurality of (in this embodiment, nine) rollers 92A rotatably supported at the lower part of the first vehicle body 91A.

The frame 94A includes a top plate 941A and two side plates 942 fixed to the back side of the top plate 941A. The two side plates 942 are arranged in the y-axis direction and are arranged to face each other with a gap in between.

As shown in FIG. 2, a plurality of rollers 92A are arranged between two side plates 942 on the frame 94A. Each roller 92A is rotatably supported by two side plates 942. By rotating each roller 92A, the bonding device 1 can travel together with the supply system 10. For example, as shown in FIG. 5, when each wheel 92B rotates in the direction of arrow β ₉₂ , each roller 92A similarly rotates in the direction of arrow β ₉₂ to advance the joining device 1 in the direction of arrow α1. Can be done. Further, as shown in FIG. 6, when each wheel 92B rotates in the direction of arrow β _{92 ′} opposite to arrow β ₉₂ , each roller 92A similarly rotates in the direction of arrow β _{92 ′} , and the joining device 1 can be moved backward in the direction of arrow α2.

Note that the number of rollers 92A arranged on the frame 94A is nine in the configuration shown in FIG. 2, but is not limited to this.

The first vehicle body 91A and the second vehicle body 91B are arranged in the y-axis direction and are placed facing each other with a gap between them. At this arrangement position, the vehicle bodies 91A and 91B are connected to each other by two connecting plates 95. has been done. The connecting plate 95 includes a biasing member (not shown), and the first vehicle body 91A and the second vehicle body 91B are connected to each other on the connecting plate 95 via the biasing member. As a result, the magnitude of the load when the waterproof sheet 100BA is rolled from the front side by the rollers 92A included in the first vehicle body 91A can be set to a desired magnitude, the details of which will be described later.

Note that the running system 9 has a configuration in which any one of the plurality of rollers 92A or wheels 92B functions as a starting wheel, a rolling wheel, and an idler wheel (guiding wheel), and further includes an endless track installed so as to surround these. It may be . In the case of this configuration, the joining device 1 can travel by driving the endless track with the starting wheel.

The handle 93 is supported and fixed to a pole 96 that projects upward from a frame 94B in the second vehicle body 91B. The worker who performs the welding work of the waterproof sheet 100 grasps the handle 93 and pushes the welding device 1 forward in the direction of arrow α1 (see FIG. 5), or moves it backward by pulling the welding device 1 in the direction of arrow α2. (see Figure 6).

The supply system 10 is a structure that supplies the solvent Q to the waterproof sheet 100, more specifically, to the overlapping portion 101 where the waterproof sheets 100B overlap.

As shown in FIG. 1, the supply system 10 includes a reservoir 2 that stores the solvent Q, a channel 3 that communicates with the reservoir 2, and through which the solvent Q from the reservoir 2 passes. A flow rate adjustment unit 4 that adjusts the flow rate of the solvent Q, a nozzle 5 that communicates with the flow path 3 and supplies (discharges) the solvent Q that has passed through the flow path 3 to the overlapping portion 101 where the waterproof sheets 100B overlap, and the flow path. It has a pump 6 that sends out the solvent Q in the nozzle 3 toward the nozzle 5 side, and a force transmission section 7 that transmits power to the pump 6.

In the supply system 10 having such a configuration, in this embodiment, each part constituting the supply system 10 is the storage part 2, the flow path 3, the flow rate adjustment part 4, the nozzle 5, the pump 6, and the power supply system 10. The transmission section 7 is arranged on the second vehicle body 91B of the first vehicle body 91A and the second vehicle body 91B. Each part constituting this supply system 10 will be explained below.

In this embodiment, the storage section 2 is comprised of a cylindrical tank, as shown in FIG. Note that it is preferable that the tank has a ventilation hole that communicates with the outside.

Further, the storage portion 2 is fixed to a support 943 provided to protrude upward from the top plate 941B of the frame 94B, and is thereby disposed on the second vehicle body 91B.

A solvent Q is stored in this storage part 2, which is used to weld the waterproof sheets 100B (the waterproof sheets 100BA and 100BB) together in the overlapped part 101 by being supplied to the overlapped part 101. . Examples of the solvent Q include, but are not limited to, tetrahydrofuran (THF), nitrobenzene, carbon tetrachloride, pyridine, ethyl acetate, cyclohexanone, ketones such as methyl ethyl ketone (MEK), alcohols such as toluene, methyl alcohol, and isopropyl alcohol. Among these, one type or a combination of two or more types can be used, and among them, tetrahydrofuran is preferable. Tetrahydrofuran has excellent volatility and exhibits solubility in various resin materials. Therefore, it is preferable as a solvent used for welding the waterproof sheets 100B together.

The flow path 3 is fluid-tightly connected to the bottom 21 of the storage section 2, and is thereby disposed on the second vehicle body 91B.

This flow path 3 can be partially or entirely constituted by a metal or resin pipe that communicates with the storage section 2 and through which the solvent Q passes.

Note that the flow path 3 may be formed by connecting a plurality of pipes via a joint, or may be formed from a single pipe. Furthermore, the pipe may be bent or curved at one or more locations along its longitudinal direction.

The nozzle 5 is fluid-tightly connected to the end of the flow path 3 on the opposite side to the reservoir 2, and is thereby disposed on the second vehicle body 91B.

In this embodiment, as shown in FIGS. 5 and 6, the nozzle 5 is constituted by a flat metal hollow body, and communicates with the flow path 3.
Note that the nozzle 5 may be provided with a reinforcing material for reinforcing the nozzle 5.

Further, as shown in FIG. 4, the nozzle 5 opens rearward, that is, toward the negative side in the x-axis direction, and discharges the solvent Q that has passed through the flow path 3 onto the overlapping portion 101 between the waterproof sheets 100B. It has an outlet 51. The solvent Q discharged from the discharge port 51 is used for joining the waterproof sheets 100B, that is, the waterproof sheets 100BA and 100BB. Although the shape of the discharge port 51 is a slit shape along the y-axis direction in the configuration shown in FIG. 4, it is not limited to this as long as it can supply the discharge port 51 to the overlapping portion 101 of the waterproof sheets 100B. Note that the nozzle 5 protrudes toward the positive side in the y-axis direction parallel to the xy plane.

As shown in FIG. 4, when discharging the solvent Q, the nozzle 5 starts from one side in the width direction of the waterproof sheet 100B, that is, from the negative side in the y-axis direction, and from the back side of the upper waterproof sheet 100BA (waterproof between the sheet 100BA and the waterproof sheet 100BB).

The supply system 10 has such a nozzle 5, and by discharging the solvent Q from the nozzle 5, the solvent Q is supplied to the overlapping portion 101 between the waterproof sheets 100B.

In addition, although the number of installed nozzles 5 that the supply system 10 has is one in this embodiment, it is not limited to this, and may be two or more, for example.

When the joining device 1 (waterproof sheet joining device of the present invention) is pushed forward in the direction of the arrow α1, the nozzle 5 is located ahead of each roller 92A in the traveling direction of the vehicle body 91A. Therefore, after the solvent Q is supplied by the supply system 10 through the nozzle 5, the waterproof sheets 100B can be rolled from the front side in the overlapping part 101 by the rollers 92A included in the traveling system 9 (Fig. 1 , see Figures 3 and 5). Due to this rolling pressure, the waterproof sheets 100B melted by the supply of the solvent Q are joined together at the overlapping portion 101. As a result, waterproofness between the waterproof sheet 100BA and the waterproof sheet 100BB in the overlapping portion 101 is ensured. By supplying the solvent Q to the overlapping portion 101 through the nozzle 5 and rolling the waterproof sheet 100B by the roller 92A after supplying the solvent Q using the welding device 1 as described above, the welding device 1 A joining process is configured to join the waterproof sheet 100 using.

Here, in joining the waterproof sheets 100B at the overlapped portion 101 using the joining device 1 as described above, as shown in FIGS. Along the overlapping part 101, the front side of the waterproof sheet 100BA (first waterproof sheet) travels on a running line _LS , and in the supply system 10, the storage section 2 mounted on the second vehicle body 91B runs on the running line LS. It travels on a supply line _LK that is different from the line _LS and parallel to the traveling line _LS .

The first vehicle body 91A and the second vehicle body 91B, which travel on different lines L _S and L _K , are connected via a connecting plate 95 including a biasing member. Thereby, the magnitude of the load when the waterproof sheet 100BA is rolled from the front side by the rollers 92A included in the first vehicle body 91A can be set to a desired magnitude. Therefore, the load applied to the waterproof sheet 100B by the traveling system 9 equipped with the rollers 92A of the first vehicle body 91A is A[N], and the load applied to the waterproof sheet 100B by the supply system 10 equipped with the storage section 2 mounted on the second vehicle body 91B is A[N]. When the load is B[N], the structure is such that the relationship A<B can be satisfied.

Therefore, when rolling the waterproof sheet 100BA from the front side with the rollers 92A in the overlapping part 101, a large load is applied to the overlapping part 101, for example, even if a full amount of solvent Q is stored in the storage part 2. In other words, it is possible to reliably prevent the dead weight of the first vehicle body 91A from becoming too large. Therefore, when the waterproof sheets 100B are joined to each other in the overlapped portion 101, it is possible to accurately suppress or prevent wrinkles from forming in the waterproof sheets 100B located in the overlapped portion 101.

In addition, in the present embodiment, the first vehicle body 91A travels on the overlapping portion 101 located on the travel line _LS , and the second vehicle body 91B travels on the supply line _{LK .} is located on the waterproof sheet 100BB (second waterproof sheet) side. That is, the second vehicle body 91B runs on the waterproof sheet 100BB located on the lower side. The second vehicle body 91B may run on either the waterproof sheet 100BA located on the upper side or the waterproof sheet 100BB located on the lower side, but as described above, the second vehicle body 91B may run on the waterproof sheet 100BB located on the lower side By running the waterproof sheet 100BA in the overlapping portion 101, it is possible to more accurately suppress or prevent wrinkles from forming on the upper waterproof sheet 100BA.

Furthermore, the load A[N] applied to the waterproof sheet 100B by the traveling system 9 mounted on the first vehicle body 91A and the load B[N] applied to the waterproof sheet 100B due to the supply system 10 mounted on the second vehicle body 91B are A It is sufficient if the configuration satisfies the relationship <B, but it is preferable that the configuration satisfies the relationship 2A<B, and the configuration satisfies the relationship 5A<B. It is more preferable to Here, if a full amount of the solvent Q is stored in the storage section 2 or the weight of the supply system 10 increases due to the complexity of the configuration of the pump 6 and the force transmission section 7, the second Although the weight of the vehicle body 91B may become large, since the vehicle body 91B is configured to satisfy the above relationship, the traveling system 9 is It is possible to reliably prevent the weight of the first vehicle body 91A from becoming too large. Therefore, when the waterproof sheets 100B are joined to each other in the overlapped portion 101, it is possible to accurately suppress or prevent wrinkles from forming in the waterproof sheets 100B located in the overlapped portion 101.

Furthermore, the load A[N] applied to the waterproof sheet 100B by the traveling system 9 mounted on the first vehicle body 91A satisfies the relationship A<B as described above, thereby preventing wrinkles from forming on the waterproof sheet 100BA. It is sufficient if the load is set to a suppressed size, but specifically, it is preferable that the load applied to one roller 92A is 50 g/roller or more and 500 g/roller or less, and 100 g/roller or more. More preferably, it is 250 g/roller or less. Thereby, in the overlapping portion 101, it is possible to more accurately suppress or prevent wrinkles from forming on the upper waterproof sheet 100BA.

Further, as shown in FIG. 3, the flow path 3 (supply system 10) is a circuit that supports the nozzle 5 so as to be rotatable around the z-axis, that is, the vertical axis in the arrow β ₅ direction and the arrow β ₅ ′ direction. It has a dynamic support part 31. Thereby, when inserting the nozzle 5 into the back side of the upper waterproof sheet 100B, the nozzle 5 can be rotated in the direction of arrow _β5 and the insertion operation can be easily performed. Further, when removing the nozzle 5 from the back side of the waterproof sheet 100B, the removing operation can be performed by rotating the nozzle 5 in the direction of arrow β ₅ ′. In this way, the insertion and removal operations of the nozzle 5 can be performed quickly and smoothly.

The structure of the rotation support part 31 is not particularly limited, and for example, the metal pipes constituting the flow path 3 may be an outer pipe and an inner pipe that rotate relative to each other around the z-axis, and this relative rotation Accordingly, the nozzle 5 can be configured to rotate around the z-axis.

The flow rate adjustment unit 4 is disposed in the middle of the flow path 3, and is thereby disposed on the second vehicle body 91B.

The flow rate adjustment section 4 is composed of, for example, a variable throttle valve. Thereby, the flow rate adjustment section 4 can steplessly adjust the flow rate of the solvent Q passing through the flow path 3 by changing the aperture opening degree. With such a flow rate adjustment unit 4, the solvent Q is supplied from the nozzle 5 in an appropriate amount without excess or deficiency.

The flow rate adjustment unit 4 may be configured to adjust the flow rate of the solvent Q by manual operation, or may be configured to adjust the flow rate of the solvent Q automatically based on various conditions such as the viscosity of the solvent Q. It may be configured to do so.

The pump 6 is disposed in the middle of the flow path 3 on the upstream side of the flow rate adjustment section 4, and is thereby disposed on the second vehicle body 91B.

This pump 6 sends out the solvent Q in the flow path 3 toward the nozzle 5 side. In this embodiment, the pump 6 is comprised of a gear pump. Although an external gear pump, an internal gear pump, etc. can be used as the gear pump, it is preferable to use an external gear pump.

As shown in FIGS. 5 and 6, the pump 6, which is an external gear pump, has two gears that mesh with each other, namely a drive gear 61 (first gear) and a driven gear 62 (second gear) that meshes with the drive gear 61. and a housing 63 that accommodates the driving gear 61 and the driven gear 62.

The driving gear 61 is rotated by the rotational force of the wheel 92B being transmitted via the force transmitting portion 7. Further, the driven gear 62 meshes with the driving gear 61, and the rotational force from the driving gear 61 is transmitted to the driven gear 62, so that the driven gear 62 can rotate in the opposite direction to the driving gear 61.

Note that each of the driving gear 61 and the driven gear 62 is a spur gear. Further, the shape and dimensions of the spur gear (defined in JIS B 1721) are the same for both the driving gear 61 and the driven gear 62.

The housing 63 defines a pump chamber 631 inside. A driving gear 61 and a driven gear 62 are rotatably supported within the pump chamber 631.

As described above, a gear pump is used as the pump 6 in this embodiment, but the present invention is not limited to this, and various pumps such as a tube pump and a diaphragm pump can also be used.

As mentioned above, two pairs of wheels 92B are arranged on the top plate 941B of the frame 94B. As shown in FIGS. 5 and 6, in the joining device 1, the rotational force of one wheel 92B (hereinafter also referred to as "wheel 92BA") among the plurality of wheels 92B is transferred to the force transmitting section 7. can be transmitted to the pump 6 via.

This force transmitting portion 7 is located between the pump 6 and the wheels 92BA, and is thus arranged on the second vehicle body 91B. The force transmitting section 7 will be explained below.

The force transmission unit 7 includes a first pulley 71 concentrically connected and fixed to the wheel 92BA, a second pulley 72 concentrically connected and fixed to the drive gear 61 of the pump 6, and a first pulley 71 and a second pulley 72 concentrically connected and fixed to the drive gear 61 of the pump 6. It has two pulleys 72 and a third pulley 73 arranged therebetween. The third pulley 73 includes a large-diameter pulley 731 and a small-diameter pulley 732 that is concentrically connected and fixed to the large-diameter pulley 731 and has a smaller diameter than the large-diameter pulley 731.

In addition, the force transmitting section 7 is connected to a first timing belt 74 that is passed around a large diameter pulley 731 of the first pulley 71 and a third pulley 73, and a small diameter pulley 732 of the second pulley 72 and a third pulley 73. It has a second timing belt 75 that is wound around.

In this way, the wheel 92BA and the drive gear 61 of the pump 6 (one of the two gears of the pump 6) are connected via a plurality of pulleys and a timing belt. .

Note that the number of installed pulleys and timing belts that the force transmission section 7 has is not limited to the number of installed ones in this embodiment.

Furthermore, the force transmitting section 7 may include other members in addition to the pulley and the timing belt. In this case, the force transmission section 7 may include, for example, a speed reducer configured by meshing a plurality of gears.

As shown in FIG. 5, when the welding device 1 (traveling system 9) moves forward in the direction of the arrow α1 with the nozzle 5 inserted into the overlapping portion 101 between the waterproof sheets 100B, the first pulley 71 moves toward the wheel 92BA. At the same time, it rotates in the direction of arrow β ₇₁ which is the same direction as the rotation direction (arrow β ₉₂ ) of wheel 92BA. The rotational force of the first pulley 71 is transmitted to the large diameter pulley 731 of the third pulley 73 via the first timing belt 74. As a result, the large diameter pulley 731 rotates in the direction of arrow β ₇₃ together with the small diameter pulley 732. Further, the rotational force of the small diameter pulley 732 is transmitted to the second pulley 72 via the second timing belt 75.

As a result, the second pulley 72 rotates in the direction of arrow β ₆₁ together with the drive gear 61 (normally rotates). Further, the rotational force of the driving gear 61 is transmitted to the driven gear 62. As a result, the driven gear 62 rotates in the direction of arrow _β62 . In this way, the driving gear 61 and the driven gear 62 are in a state where they are rotated (normally rotating) all at once, and a force can be generated to send out the solvent Q from the storage section 2 to the nozzle 5. Thereby, the solvent Q is discharged from the nozzle 5, and the waterproof sheet 100B can be melted in the overlapping portion 101.

Further, as described above, after the solvent Q is discharged, the waterproof sheets 100B are rolled against each other by the rollers 92A in the overlapping portion 101 (see FIGS. 1 and 3). Thereby, the waterproof sheets 100B are joined to each other at the overlapping portion 101.
After this joining work is completed, the nozzle 5 is removed from between the waterproof sheets 100B.

Further, as shown in FIG. 6, after the nozzle 5 is removed, when the welding device 1 (traveling system 9) retreats in the direction of arrow α2, the first pulley 71 moves along with the wheel 92BA in the rotational direction of the wheel 92BA (arrow _β92) . ') in the same direction as the arrow β ₇₁ '. The rotational force of the first pulley 71 is transmitted to the large diameter pulley 731 of the third pulley 73 via the first timing belt 74. As a result, the large diameter pulley 731 rotates together with the small diameter pulley 732 in the direction of the arrow β ₇₃ ′ opposite to the arrow β ₇₃ . Further, the rotational force of the small diameter pulley 732 is transmitted to the second pulley 72 via the second timing belt 75. As a result, the second pulley 72 rotates (reverses) together with the drive gear 61 in the direction of arrow β ₆₁ ′ opposite to arrow β ₆₁ . Further, the rotational force of the driving gear 61 is transmitted to the driven gear 62. This causes the driven gear 62 to rotate in the direction of arrow β ₆₂ ′ opposite to arrow β ₆₂ . In this way, the driving gear 61 and the driven gear 62 are rotated (reversed) all at once, so that the force for sending the solvent Q from the storage section 2 to the nozzle 5 disappears. As a result, the discharge of the solvent Q from the nozzle 5 is stopped.

As described above, in the joining device 1, the pump 6 is not operated by power supply, but the force transmission section 7 transmits the rotational force of the wheel 92BA during traveling to the pump 6 as the power for operating the pump 6. is configured to do so. Then, while the bonding device 1 is moving forward, the solvent Q can be discharged from the nozzle 5. On the other hand, when the bonding device 1 is retreating, the discharge of the solvent Q from the nozzle 5 is stopped. In this manner, in the bonding device 1, the discharge (supply) and stoppage of the solvent Q can be easily controlled by a simple operation of switching forward and backward movement of the bonding device 1.

Further, if the rotational force of the wheels 92BA during forward movement is constant, the operating state of the pump 6 is also constant and stable. Thereby, the amount of solvent Q discharged from the nozzle 5 can be made constant regardless of the amount of solvent Q stored in the storage section 2. Thereby, the bonding strength at the overlapping portion 101 can be set to be uniform along the longitudinal direction of the waterproof sheet 100B, and the construction quality is therefore stabilized.

In addition, when the solvent Q stored in the storage part 2 can be supplied to the overlapping part 101 between the waterproof sheets 100B through the nozzle 5 according to the siphon principle, the supply system 10 is connected to the pump 6 and the The transmission section 7 may also be omitted.

<Second embodiment>
FIG. 7 is a perspective view showing a second embodiment of the waterproof sheet joining device of the present invention.

Hereinafter, a second embodiment of the waterproof sheet joining device and the waterproof sheet joining method of the present invention will be described with reference to this figure. omitted.
This embodiment is similar to the first embodiment except that the configuration of the traveling system is different.

As shown in FIG. 7, in the present embodiment, the traveling system 9 further includes a correction mechanism 8 that corrects the twist or meandering (curve) when the waterproof sheet 100A is twisted or meandered.

The correction mechanism 8 includes two arms 82, a connecting portion 83 that connects the two arms 82, and a guide portion 84 supported by the connecting portion 83.

The two arms 82 have an elongated shape and are spaced apart from each other in the y-axis direction. Each arm 82 protrudes forward, that is, toward the positive side in the x-axis direction, and is cantilevered by the frame 94A.

Note that each arm 82 is preferably supported so as to be movable along an arrow β ₈₂ parallel to the x-axis direction. As a result, each arm 82 can be moved in and out of the frame 94A, and the position of the guide section 84 (correction mechanism 8) in the x-axis direction can be adjusted depending on various conditions such as the state of the waterproof sheet 100B. be able to.

The connecting portion 83 is composed of connecting rods 831 that connect the two arms 82 at a plurality of locations. Each connecting rod 831 is arranged along the longitudinal direction of the arm 82 at intervals. Although the number of connecting rods 831 installed is three in this embodiment, it is not limited to this, and may be, for example, one, two, or four or more.

The guide portion 84 is supported by the two connecting rods 831 located at the front of the three connecting rods 831 . The guide portion 84 includes a support body 841 installed between two connecting rods 831, and a guide roller 842 rotatably supported by the support body 841.

If the waterproof sheet 100A is deformed such as twisting or meandering (curving), the joining device 1 can correct the deformation using the guide roller 842 while moving forward. Thereby, deformation of one waterproof sheet 100B can be eliminated before one waterproof sheet 100B is joined to the other waterproof sheet 100B. Therefore, one waterproof sheet 100B is accurately joined to the other waterproof sheet 100B in a state where deformation is eliminated.

Note that the guide portion 84 is preferably supported so as to be movable along an arrow β ₈₄ parallel to the y-axis direction. Thereby, the position of the guide roller 842 in the y-axis direction can be adjusted according to the width of the waterproof sheet 100A.

<Third embodiment>
FIG. 8 is a side view showing a third embodiment of the waterproof sheet joining device of the present invention.

Hereinafter, a third embodiment of the waterproof sheet joining device and the waterproof sheet joining method of the present invention will be described with reference to this figure. omitted.
This embodiment is similar to the first embodiment except that the configuration of the traveling system 9 is different.

As shown in FIG. 8, in this embodiment, the traveling system 9 includes a detecting section 97 that detects the traveling speed of the joining apparatus 1, and a display section 98 that displays the detection result of the detecting section 97.

The detection unit 97 is not particularly limited, and may include, for example, a signal generation unit that generates a signal with a frequency proportional to the rotational speed of one of the plurality of rollers 92A, and a signal generated by the signal generation unit. Based on this, an electromagnetic rotation detector or the like having a calculation section that calculates the traveling speed of the welding device 1 can be used.

Note that the detection unit 97 may be configured to detect the traveling speed of the bonding device 1 based on the rotation speed of the roller 92A.

The display section 98 is a gauge (speedometer) electrically connected to the detection section 97 via a cable 99. The display section 98 may be configured to display the traveling speed of the joining device 1 as a detection result of the detection section 97 in a digital manner or may be configured to display it in an analog manner. There may be.

The amount of solvent Q discharged from the nozzle 5 tends to be proportional to the traveling speed of the bonding device 1. Therefore, the configuration including the detection section 97 and the display section 98 allows the joining device 1 to run stably at a speed suitable for joining the waterproof sheets 100 as much as possible. This improves construction quality.

<Fourth embodiment>
FIG. 9 is a vertical partial sectional view showing a fourth embodiment of the waterproof sheet joining device of the present invention.

Hereinafter, a fourth embodiment of the waterproof sheet joining device and the waterproof sheet joining method of the present invention will be described with reference to this figure. omitted.
This embodiment is similar to the first embodiment except that the configuration of the pump is different.

As shown in FIG. 9, in this embodiment, the pump 6 is an impeller pump. This pump 6 has an impeller 64 and a housing 65 that accommodates the impeller 64.

The impeller 64 can be rotated by the rotational force of the roller 92A being transmitted through the timing belt 74, the timing belt 75, etc. of the force transmission section 7. Thereby, the housing 65 forms a pump chamber 651 inside. An impeller 64 is rotatably supported within the pump chamber 651 . When the bonding device 1 moves forward, the impeller 64 is rotated in the normal direction around the arrow β ₆₄ to generate centrifugal force, and the solvent Q can be sent out. Conversely, when the welding device 1 is retracted, the impeller 64 can be reversed around the arrow β ₆₄ '. In this case, delivery of the solvent Q is stopped.

Although the illustrated embodiments of the waterproof sheet joining apparatus and the waterproof sheet joining method of the present invention have been described above, the present invention is not limited thereto. Furthermore, each part constituting the waterproof sheet joining device can be replaced with any part that can perform the same function. Moreover, arbitrary components may be added.

Further, when the welding device 1 is used for welding in the embodiment shown in FIG. 10, the positional relationship between the first car body 91A and the second car body 91B is reversed in the By preparing one more device that protrudes toward the negative side in the y-axis direction, and using two devices in parallel, the bonding device 1 explained in the above embodiment and the further prepared bonding device 1. By repeating the operations, joining in the manner shown in FIG. 10 can be performed.

Furthermore, in the embodiment, each part constituting the supply system 10, that is, the storage part 2, the flow path 3, the flow rate adjustment part 4, the nozzle 5, the pump 6, and the force transmission part 7 is connected to the second vehicle body. 91B, and each of these parts runs on the supply line _LK , but each part except the storage part 2, that is, the nozzle 5, the flow path 3, the flow rate adjustment part 4, the pump 6, and the force transmission part 7 At least one of them may be arranged on the first vehicle body 91A and run on the running line _LS . In other words, at least the storage section 2 may be configured to travel along the supply line _LK .

In addition, the bonding device 1 stores the solvent Q as a liquid material in the storage part 2, and thereby supplies the solvent Q from the nozzle 5 between the waterproof sheets 100B. Alternatively, an adhesive may be supplied between the waterproof sheets 100B to join the waterproof sheets 100B together.

1 Waterproof sheet joining device (joining device)
2 Storage section 21 Bottom section 3 Channel 31 Rotation support section 4 Flow rate adjustment section 5 Nozzle 51 Discharge port 6 Pump 61 Drive gear (first gear)
62 Driven gear (second gear)
63 Housing 631 Pump chamber 64 Impeller 65 Housing 651 Pump chamber 7 Force transmission section 71 First pulley 72 Second pulley 73 Third pulley 731 Large diameter pulley 732 Small diameter pulley 74 First timing belt 75 Second timing belt 8 Correction mechanism 82 Arm 83 Connecting portion 831 Connecting rod 84 Guide portion 841 Support body 842 Guide roller 9 Traveling system 91A First vehicle body 91B Second vehicle body 92A Roller 92B Wheel 92BA Wheel 93 Handle 94A Frame 94B Frame 941A Top plate 942 Side plate 943 Support column 95 Connecting plate 96 Pole 97 Detection section 98 Display section 99 Cable 10 Supply system 10A 1st supply system 10B 2nd supply system 100 Tarpaulin sheet 100A Tarpaulin sheet 100B Tarpaulin sheet 100BA Tarpaulin sheet 100BB Tarpaulin sheet 101 Overlapping section L _K supply line L _S running line Q Solvent VL Virtual line α1 Arrow α2 Arrow β ₅ Arrow β ₅ ' Arrow β ₆₁ Arrow β ₆₁ ' Arrow β ₆₂ Arrow β ₆₂ ' Arrow β ₆₄ Arrow β ₆₄ ' Arrow β ₇₁ Arrow β ₇₁ ' Arrow β ₇₃ Arrow β ₇₃ ' Arrow β ₈₂ Arrow β ₈₄ Arrow β ₉₂ Arrow β ₉₂ ' Arrow

Claims (6)

A waterproof sheet joining device used when laying a waterproof waterproof sheet on a floor surface of a building frame using a liquid material containing a solvent or adhesive,
a supply system that supplies the liquid material to the waterproof sheet;
a traveling system having a rotatably supported roller and traveling together with the supply system as the roller rotates;
By supplying the liquid material to an overlapping part formed by overlapping a first tarpaulin sheet and a second tarpaulin sheet of the tarpaulin sheet at their edges with the second tarpaulin sheet on the lower side, 1 waterproof sheet and the second waterproof sheet are joined,
After the liquid material is supplied by the supply system to the overlapping portion where the first waterproof sheet and the second waterproof sheet overlap, the liquid material is supplied by the rollers included in the traveling system. The overlapping portion is configured to be rolled from the front side of the first waterproof sheet,
The supply system includes a storage section that stores the liquid material;
a channel that communicates with the storage section and through which the liquid material passes;
a nozzle that communicates with the flow path and discharges the liquid material that has passed through the flow path to the overlapping portion,
The traveling system includes a first vehicle body having the rollers;
does not have the roller, and includes a second vehicle body in which at least the storage section is mounted in the supply system;
In the traveling system, the roller runs along a traveling line along which the front side of the first waterproof sheet is rolled along the overlapping portion;
In the supply system, at least the storage section is configured to run on a line different from the travel line. When the load applied to the waterproof sheet by the running system is A [N], and the load applied to the waterproof sheet by the supply system is B [N], it is configured to satisfy the relationship A<B. The waterproof sheet joining device according to claim 1. The waterproof sheet joining device according to claim 1 or 2, wherein the travel line and the line are parallel. The first vehicle body and the second vehicle body are arranged opposite to each other with a gap in the direction perpendicular to the traveling line, and at this arrangement position, the vehicle bodies are connected to each other by a connecting plate including a biasing member. The waterproof sheet joining device according to any one of claims 1 to 3, wherein : 5. The first vehicle body travels on the overlapping portion located on the traveling line, and the second vehicle body travels on the line located on the second waterproof sheet side. The waterproof sheet joining device described in . A waterproof sheet joining method, comprising a joining step of joining the waterproof sheets using the waterproof sheet joining apparatus according to any one of claims 1 to 5 .

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