JP2023151676A - Waterproof sheet joining device and waterproof sheet joining method - Google Patents

Abstract

To provide a waterproof sheet joining device capable of joining waterproof sheets with each other with excellent precision at an overlapping part between the waterproof sheets by allowing an operator to view a tip of a nozzle with good visibility when the operator pushes the waterproof sheet joining device forward during laying construction of the waterproof sheet, and a waterproof sheet joining method using the waterproof sheet joining device.SOLUTION: A waterproof sheet joining device 1 has a supply system 10 and a travel system 9. The supply system 10 has a storage part 2 and a nozzle 5 that discharges a liquid material to an overlapping part 101. The travel system 9 has a vehicle body 91, a nozzle support part 3 disposed on the front side of the vehicle body 91, and a pole 96 disposed on the rear side of the vehicle body 91 so as to extend upward. When the nozzle 5 is viewed from a position of 125 cm behind the nozzle 5 and 150 cm in height, a relation of 40≤θ1≤θ2 is satisfied, where an angle between a view line direction and a floor surface on which the vehicle body 91 is disposed is θ1, and an angle between the pole 96 and the floor surface is θ2.SELECTED DRAWING: Figure 2

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, many buildings have adopted waterproof sheet structures in which waterproof sheets are laid on the floors of rooftops, balconies, and the like.

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 (supplying) water to the overlapping portion.

With this supply device, when the worker pushes the supply device forward and moves the supply device along the overlapping part of the waterproof sheets, the adhesive stored in the tank is supplied through the tube. Supplying water from the tip of a nozzle placed on the front side of the device to the overlapping portion of the waterproof sheets, and then rolling the top waterproof sheet from the front side with a roller provided on the rear side of the nozzle in the feeding device. Then, the waterproof sheets are joined to each other at the overlapping portions of the waterproof sheets.

In order to stably supply the adhesive to the overlapping parts of the waterproof sheets, the supply device with such a configuration needs to be moved along the overlapping parts of the waterproof sheets. In response to this, it is required that the tip of the nozzle be positioned without shifting.

Therefore, when a worker pushes the supply device forward when laying a waterproof sheet, the tip of the nozzle is visible to the worker. It is required to be able to move the feeding device forward while correcting the position of the device. However, the reality is that current supply devices do not take into consideration visibility of the tip of the nozzle by the operator.

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 enable the worker to visually check the tip of the nozzle with good visibility when pushing the tarpaulin joining device forward during the construction of laying the tarpaulin sheet, and to attach the tip of the nozzle to the overlapping part of the tarpaulin sheets. An object of the present invention is to provide a waterproof sheet joining device that can join waterproof sheets together with excellent accuracy, 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 (5) below.
(1) A waterproof sheet joining device used when laying a waterproof waterproof sheet on a floor surface as 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 vehicle body comprising a frame and wheels rotatably supported by the frame, the vehicle body traveling along the forward direction together with the supply system by rotation of the wheels; and a pole extending upward from the rear side of the frame. a steering unit having a handle provided at the tip of the pole; and a running system having a handle,
Applying the liquid material to an overlapping part formed by overlapping a first waterproof sheet and a second waterproof sheet of the waterproof sheet at their edges along the forward direction with the second waterproof sheet on the lower side. By supplying, the first 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 a rotatably supported roller included in the traveling system. is configured to compress the overlapping portion supplied with the water from the front side of the first waterproof sheet,
The supply system includes a storage section that stores the liquid material, a nozzle that discharges the liquid material to the overlapping section, and a flow path through which the liquid material passes, and these are connected to the storage section and the nozzle. are communicated via the flow path,
The traveling system further includes a nozzle support part disposed on the front side of the vehicle body and supporting the nozzle,
When the nozzle is viewed from a position 125 cm rearward and 150 cm high from the nozzle, the angle formed with the floor surface on which the vehicle body is placed is θ1 [°], and the angle formed between the pole and the floor surface is θ1 [°]. A waterproof sheet joining device characterized by satisfying the relationship 40≦θ1≦θ2 when θ2 [°].

(2) the travel system includes a nozzle support swing mechanism located between the vehicle body and the nozzle support;
The waterproof sheet joining device according to (1) above, wherein the nozzle support swing mechanism has a frame shape with a space inside.

(3) The waterproof sheet joining device according to (1) or (2) above, wherein the angle θ1 is 40° or more and 60° or less.

(4) The waterproof sheet joining device according to any one of (1) to (3) above, wherein the angle θ2 is 40° or more and 90° or less.

(5) 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 (4) above.

According to the present invention, when looking at the nozzle from a position 125 cm rearward and 150 cm high from the nozzle, the angle between the vehicle body and the floor surface is defined as θ1, and the angle between the pole and the floor surface is defined as θ2. Then, the relationship 40≦θ1≦θ2 is satisfied. Therefore, when the worker pushes the waterproof sheet joining device forward during laying of the waterproof sheet, the tip of the nozzle can be visually recognized by the worker with good visibility. Therefore, the operator can join the waterproof sheets together at the overlapping portion of the waterproof sheets, that is, install the waterproof sheets with excellent accuracy using the waterproof sheet joining device.

FIG. 1 is a perspective view showing a first embodiment of a waterproof sheet joining device of the present invention. FIG. 2 is a side view of the waterproof sheet joining device shown in FIG. 1 when viewed from the side in the direction of arrow A in the figure. FIG. 2 is a front view of the waterproof sheet joining device shown in FIG. 1 when viewed from the front in the direction of arrow C in the figure. FIG. 2 is a plan view of the waterproof sheet joining device shown in FIG. 1 when viewed from above in the direction of arrow B in the figure. FIG. 2 is a schematic diagram showing the configuration of a supply system included in the waterproof sheet joining apparatus shown in FIG. 1. FIG. FIG. 2 is a partially enlarged side view showing a pressing section included in the waterproof sheet joining device shown in FIG. 1; FIG. 2 is a partially enlarged front view illustrating a pressing section included in the waterproof sheet joining device shown in FIG. 1; FIG. 2 is a partially enlarged perspective view showing a nozzle support part included in the waterproof sheet joining device shown in FIG. 1; FIG. 2 is a partially enlarged side view showing a nozzle support part included in the waterproof sheet joining device shown in FIG. 1; FIG. 2 is a partially enlarged vertical cross-sectional view showing an enlarged opening/closing valve included in the waterproof sheet joining device shown in FIG. 1. FIG. FIG. 3 is a partially enlarged side view showing a pressing section included in a second embodiment of the waterproof sheet joining device of the present invention. FIG. 3 is a partially enlarged front view illustrating a pressing section included in a second embodiment of the waterproof sheet joining device of the present invention. FIG. 7 is a partially enlarged front view illustrating a pressing section included in a third 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. 15 is a perspective view showing another example of the construction of the waterproof sheet shown in FIG. 14; FIG.

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 a waterproof sheet joining device used when laying a waterproof waterproof sheet on a floor surface as a building frame using a liquid material containing a solvent or an adhesive, and comprising: a vehicle body comprising a supply system for supplying a liquid material to the waterproof sheet, a frame and wheels rotatably supported by the frame, the vehicle body traveling along the forward direction along with the supply system by rotation of the wheels; a steering system having a pole extending upward from the rear side of the frame and a handle provided at the tip of the pole; the first waterproof sheet and the second waterproof sheet included in the waterproof sheet; By supplying the liquid material to an overlapping part formed by overlapping the sheets at their edges along the advancing direction with the second waterproof sheet on the lower side, the first waterproof sheet and the first waterproof sheet After the two waterproof sheets are joined and the liquid material is supplied by the supply system to the overlapping part where the first waterproof sheet and the second waterproof sheet overlap, the rotatable support provided in the traveling system The overlapping portion to which the liquid material is supplied is compressed from the front side of the first waterproof sheet by a roller provided with the liquid material, and the supply system includes a storage portion for storing the liquid material; The traveling system includes a nozzle for discharging a liquid material into the overlapping portion, and a flow path through which the liquid material passes, and the storage portion and the nozzle are in communication with each other via the flow path. , further comprising a nozzle support part that supports the nozzle and is disposed on the front side of the vehicle body, and when the nozzle is viewed from a position 125 cm rearward and 150 cm high from the nozzle, the vehicle body is arranged. When the angle between the pole and the floor surface is θ1 [°], and the angle between the pole and the floor surface is θ2 [°], the relationship 40≦θ1≦θ2 is satisfied.

In the waterproof sheet joining device of the present invention, as described above, when the nozzle is viewed from a position 125 cm rearward and 150 cm high from the nozzle, the angle made with the floor surface on which the vehicle body is placed is θ1, and the angle between the pole and When the angle formed with the floor surface is θ2, the relationship 40≦θ1≦θ2 is satisfied. Such a position 125 cm rearward and 150 cm high from the nozzle is such that when the worker who is laying the waterproof sheet (joining work) grasps the handle 93, the worker can easily place his/her own eyes. The relationship between the angle θ1 between the nozzle and the floor when viewed from that position and the angle θ2 between the pole and the floor satisfies 40≦θ1≦θ2. This allows the worker to visually recognize the tip of the nozzle with good visibility when the worker pushes the waterproof sheet joining device forward during the construction of laying the tarpaulin sheet. Therefore, the operator can join the waterproof sheets together at the overlapping portion of the waterproof sheets, that is, install the waterproof sheets with excellent accuracy using the waterproof sheet joining device. This waterproof sheet joining device will be described in detail below.

<<Waterproof sheet joining equipment>>
<First embodiment>
FIG. 1 is a perspective view showing a first embodiment of the waterproof sheet joining device of the present invention, and FIG. 2 is a side view of the waterproof sheet joining device shown in FIG. 1 viewed from the side in the direction of arrow A in the figure. 3 is a front view of the waterproof sheet joining device shown in FIG. 1 as seen from the front in the direction of arrow C in the figure, and FIG. 4 is a front view of the waterproof sheet joining device shown in FIG. 1 in the direction of arrow B in the figure. 5 is a schematic diagram showing the configuration of a supply system included in the waterproof sheet joining device shown in FIG. 1, and FIG. 6 is an enlarged view of the pressing section provided in the waterproof sheet joining device shown in FIG. 1. 7 is a partially enlarged front view showing an enlarged pressing part of the waterproof sheet joining device shown in FIG. 1, and FIG. 8 is a nozzle support part of the waterproof sheet joining device shown in FIG. FIG. 9 is an enlarged partial side view showing a nozzle support provided in the waterproof sheet joining device shown in FIG. 1, and FIG. FIG. 14 is an exploded perspective view showing an example of the construction state of the waterproof sheet; FIG. 15 is an exploded perspective view showing an example of the construction state of the waterproof sheet; FIG. 16 15 is a perspective view showing another example of the construction of the waterproof sheet shown in FIG. 14. FIG.

In addition, in FIG. 8, (a) shows a state in which the tip of the nozzle is located on the -y-axis side, and (b) shows a state in which the tip of the nozzle is located in the +y-axis side. , (a) shows a state in which the nozzle is located relatively to the lower side with respect to the vehicle body included in the traveling system, and (b) shows a state in which the nozzle is located relatively to the upper side with respect to the vehicle body provided in the traveling system. Indicates the position.

In the following, for convenience of explanation, the upper side in FIGS. 1 to 3 and 5 to 16, the front side of the paper in FIG. 3 and FIGS. 5 to 16, the lower side of the paper in FIG. 4 is referred to as the "bottom (or lower part)" or "back side." Also, the diagonal lower left side in FIGS. 1 and 14 to 16, the left side in FIGS. 2, 5 to 6, 9 and 11, and the front side of the page in FIGS. , the lower side in FIG. 4 and the diagonally lower right side in FIG. 8 are referred to as the "front" (or front). Furthermore, the diagonally upper right side in FIGS. 1 and 14 to 16, the right side in FIGS. 2, 5 to 6, 9 and 11, and the back side of the page in FIGS. , the upper side in FIG. 4 and the diagonally upper left side in FIG. 8 are referred to as "rear (or rear)". Further, as shown in FIGS. 1 to 13, 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. 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.

By the way, 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. 14 and 15.

In the embodiment shown in FIG. 14, a strip-shaped tarpaulin sheet 100 (hereinafter sometimes 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 addition, in the embodiment shown in FIG. 14, the waterproof sheet 100B can be replaced with a heat insulating panel 150B, that is, a so-called "PVC steel plate" or the like. Specifically, as shown in FIG. 16, two adjacent heat insulating panels 150B are arranged with their edges butted against each other without any space between them, and in this state, the main building It is fixed at 160. Then, the fireproof sheet 155 is joined so as to cover the boundary part 151 formed by butting the edges of the two heat insulating panels 150B, and further includes the area where the fireproof sheet 155 of the boundary part 151 is joined. The waterproof sheet 100A is joined in such a manner. The joining device 1 is used to join the waterproof sheet 100A to the boundary 151 between the heat insulating panels 150B via the fireproof sheet 155, and by joining the waterproof sheet 100A, the heat insulating panel 150B is laid on the main building 160. Waterproofing is applied to the floor surface.

Here, the heat insulating panel 150B has an inner layer composed of a substrate made of various steel plates (metal plates) such as galvalume steel plates (registered trademark) and stainless steel plates, and a heat insulating layer, and an outermost layer having waterproof properties like the waterproof sheet 100B. It consists of a waterproof layer (PVC layer) made up of a sheet (tarpaulin sheet). That is, in the present invention, the waterproof layer formed on the substrate is also referred to as the waterproof sheet 100B (second waterproof sheet). In other words, in the embodiment shown in FIG. 16, the joining device 1 is used to join the waterproof layer formed on the substrate and the waterproof sheet 100A.

In addition, either one of the two heat insulation panels 150B shown in FIG. 16 can also be comprised with the waterproof sheet 100B depending on the structure of the main building 160 etc.

Further, in the embodiment shown in FIG. 14, the two waterproof sheets 100B are arranged adjacent to each other with a space between them. However, the present invention is not limited to this, and as shown in FIG. The two heat insulating panels 150B (in other words, the waterproof sheet 100B) can also be arranged so that the edges of the two heat insulating panels 150B butt each other without leaving any space between them.

In the embodiment shown in FIG. 15, the waterproof sheets 100B are laid parallel to 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 100BA"). 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. 15, the lower waterproof sheet 100BB of the two waterproof sheets 100B may be replaced with the above-mentioned heat insulating panel 150B.

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. 15.

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 using the solvent Q supplied from the joining device 1, the adhesion between the waterproof sheets 100 can be improved.

A waterproof sheet joining device 1 is used to lay the waterproof sheet 100 on the floor surface of the building frame as described above, and this joining device 1 supplies a solvent Q to the waterproof sheet 100 as shown in FIG. 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 vehicle body 91 that travels together with the supply system 10, a pressing section 7 having a roller 92A that is rotatably supported in the front-rear direction at the bottom of the vehicle body 91, and a nozzle support that supports the nozzle 5 that the supply system 10 has. 3, a nozzle support swing mechanism 6 that supports the nozzle support part 3 movably in the ±z axis directions on the vehicle body 91, and a handle 93 supported and fixed to the upper part of the vehicle body 91.

The vehicle body 91 includes a frame 94, and two (one pair) wheels 92B and two (one pair) casters 92C that are rotatably supported in the longitudinal direction at the lower part of the vehicle body 91 (frame 94). ing.

The frame 94 has one top plate 941, two side plates 942, and four protruding plates 943, as shown in FIGS. 1 to 4. Among these, one top plate 941 is a flat plate having a rectangular planar shape and extending in the x-axis direction, and its plane is arranged almost parallel to the xy plane to constitute the main body of the frame 94. ing. The two side plates 942 are elongated objects extending in the x-axis direction, and are arranged in the y-axis direction via the top plate 941 with their planes substantially parallel to the yz plane. It is joined to the top plate 941. Furthermore, the four protruding plates 943 are small pieces having a rectangular planar shape, and are arranged at positions corresponding to the four corners of the top plate 941 so that their planes are substantially parallel to the xy plane. , respectively, constitute a protrusion provided to protrude from the side plate 942 (top plate 941) by being joined to the side plate 942.

The frame 94 is provided with protruding plates 943 protruding from the side plates 942 at positions corresponding to the four corners of the top plate 941, and among these, two protruding plates located on the +x-axis direction side (front side) 943, two (a pair) of wheels 92B are arranged to face each other along the y-axis direction on the lower side thereof, and two protruding plates 943 are located on the −x-axis direction side (rear side). On the lower side, two (a pair) of casters 92C are arranged to face each other along the y-axis direction. That is, the frame 94 includes two wheels 92B on its front side, and two casters 92C on its rear side.

Of these wheels 92B and casters 92C, each wheel 92B (first wheel) is restricted from turning around an axis in the z-axis direction (vertical direction), and protrudes rotatably along the front-rear direction, that is, the ±x-axis direction. It is supported by a plate 943. In other words, each wheel 92B is allowed to rotate around the y-axis without turning, that is, only to rotate along the front-rear direction.

In addition, each caster 92C is rotatable around an axis in the z-axis direction (vertical direction), and along with this rotation, the caster 92C can rotate within a range from the front-rear direction to the left-right direction, that is, from the ±x-axis direction to the ±y-axis direction. It is supported by a protruding plate 943 so as to be rotatable along the direction of the rotation. In other words, each caster 92C is allowed to both rotate around the axis in the z-axis direction (vertical direction) and rotate along any direction from the front-rear direction to the left-right direction accompanying the rotation. .

In the welding device 1 equipped with wheels 92B and casters 92C having such a configuration, each wheel 92B and each caster 92C rotate in the front-rear direction, so that the welding device 1 (traveling system 9) can travel together with the supply system 10. can. That is, the worker who performs the welding work of the waterproof sheet 100 rotates each wheel 92B and each caster 92C in the +x axis direction (forward direction) while holding the handle 93, so that the vehicle body 91, that is, the welding device 1 By moving forward in the +x-axis direction (forward direction) and rotating each wheel 92B and each caster 92C in the -x-axis direction, the vehicle body 91, that is, the joining device 1 moves backward in the -x-axis direction. Then, when the joining device 1 moves forward in the +x-axis direction and backward in the -x-axis direction, the opposing wheels 92B each move along the pair of wheel running lines Lk along the x-axis direction (forward direction). The casters 92C that travel and face each other travel along a pair of wheel travel lines Lk along the x-axis direction (forward direction). More specifically, of the wheels 92B and casters 92C that face each other in the y-axis direction (left-right direction), the wheels 92B and casters 92C located on the +y-axis direction travel on the wheel running line Lk1, and move on the -y-axis direction side. The positioned wheels 92B and casters 92C travel along the wheel travel line Lk2.

In addition, in the joining device 1 (traveling system 9), as described above, a pair of wheels 92B are provided on the +x-axis direction side (front side) of the frame 94, and are allowed to rotate only in the front-rear direction without turning. is provided on the −x-axis direction side (rear side) of the frame 94, which allows both rotation around the axis in the z-axis direction and rotation along any direction from the front-rear direction to the left-right direction. A pair of casters 92C are provided. Further, the handle 93 that is held by the operator during the joining work of the waterproof sheet 100 is supported on the rear side of the frame 94 via a pole 96 that protrudes upward from the frame 94, as will be described later.

Therefore, when the worker moves the welding device 1 (traveling system 9) forward in the +x-axis direction (forward direction) while holding the handle 93 when the worker performs the welding work of the waterproof sheet 100, The joining device 1 (vehicle body 91) is rear wheel steered. In this way, by assuming that the traveling system 9 is rear-wheel-steering, the casters 92C located on the -x-axis direction can be moved to the +y-axis direction by operating the handle 93 in the ±y-axis direction. The wheels 92B located on the -y-axis side can travel along the wheel travel line Lk1 and the wheels 92B located on the −y-axis direction can travel along the wheel travel line Lk2 with excellent accuracy. Therefore, similarly to the wheels 92B, the nozzle 5 located on the +x-axis direction side travels along the roller running line Ls, and furthermore, the roller 92A of the pressing part 7 located on the -x-axis direction side of the nozzle 5 travels along the roller travel line Ls. Travel along the roller travel line Ls can be performed with excellent accuracy. Therefore, when the welding device 1 is moved in the +x-axis direction by pushing the handle 93 in the +x-axis direction by the operator, the nozzle 5 and the roller 92A are moved to the waterproof position located on the roller running line Ls. It is possible to continuously arrange the sheets 100B with good positional accuracy corresponding to the overlapping portions 101 of the sheets 100B. Therefore, using the joining device 1, the operator can join the waterproof sheets 100B to each other with excellent accuracy at the overlapping portion 101 between the waterproof sheets 100B.

The handle 93 is supported and fixed to a pole 96 that protrudes upward from the center of a connecting member 944 connected to the rear side of a side plate 942 of a frame 94 of the vehicle body 91.

As a result, the operator who performs the welding work of the waterproof sheet 100 can grasp the handle 93 and push the welding device 1 in the +x-axis direction (forward direction) or push the welding device 1 in the -x-axis direction while holding the handle 93. By pulling the welding device 1 in the direction, it is possible to move the welding device 1 forward in the +x-axis direction (forward direction) or to move the welding device 1 backward in the −x-axis direction (retreat direction).

Further, a storage section 2 included in the supply system 10 described below is movably fixed and provided in the middle of the pole 96.

Further, the pole 96 is provided with a lever 44 included in the supply system 10, which will be described below, in the middle thereof. By operating this lever 44 by the operator, the joining device 1 is moved forward in the +x axis direction, and when joining the waterproof sheets 100B to each other at the overlapped portion 101, that is, when laying the waterproof sheets 100B, the joining device 1 is moved forward in the +x axis direction. The solvent Q can then be supplied. Furthermore, since the lever 44 for switching the supply of the solvent Q is provided near the operator's hand, like the pole 96, it is possible to easily switch between supplying and not supplying the solvent. .

The length of this pole 96 is preferably set to about 80 cm or more and about 110 cm or less, more preferably about 90 cm or more and about 105 cm or less, and the pole 96 is set to have a length of about 80 cm or more and about 110 cm or less, and is also set to a length of about 90 cm or more and about 105 cm or less. Although the angle θ2 formed by the pole 96 is 90° in FIG. 2, it is preferably set to about 40° or more and 90° or less, more preferably about 55° or more and 90° or less. As a result, when the worker moves the joining device 1 forward while grasping the handle 93 during laying of the waterproof sheet 100B, unnecessary force is not required for this forward movement, so that the work is stable for a long time. Accordingly, the joining device 1 can be advanced.

The handle 93 and the pole 96 constitute a steering section that steers the vehicle body 91 (traveling system 9) and ultimately the joining device 1.

In this embodiment, as shown in FIGS. 1 to 4, FIG. 6, and FIG. A total of three wheels are connected to the vehicle body 91 in a line along the x-axis direction (forward direction) at positions between the pair of wheel travel lines Lk.

Further, each pressing portion 7 includes two (two) side plates 71 (connecting plates) arranged in the y-axis direction (orthogonal direction perpendicular to the forward movement direction) and facing each other with a gap therebetween; It has a plurality of (seven in this embodiment) rollers 92A (pressing rollers) arranged between the two side plates 71, and four connecting members 72 connected to the two side plates 71, respectively. .

In the pressing section 7, the rollers 92A are arranged at intervals along the x-axis direction (advance direction) between the two side plates 71 (first roller instruction member and second roller support member). One end and the other end thereof are rotatably supported by two side plates 71 via an axle (rotating shaft). At the upper ends of the two side plates 71, the two connecting members 72 (first connecting member and second connecting member) connected to each other are connected to the top plate 941 of the vehicle body 91, so that the plurality of rollers 92A is rotatably supported by the vehicle body 91 (top plate 941) via the connecting member 72.

In this manner, in this embodiment, one pressing section 7 is provided with a plurality of rollers 92A. In addition, in FIG. 2 and FIG. 6, one pressing part 7 is equipped with seven rollers 92A, but as long as the number is two or more, it may be less than seven or more than seven. , it may be either.

In the pressing section 7, each roller 92A is set to have a width that can include the width of the overlapping section 101, and as the vehicle body 91, that is, the joining device 1 runs, the wheels 92B rotate and the rollers 92A rotate. The roller 92A also rotates. Therefore, for example, when the vehicle body 91 is moved forward in the +x-axis direction by the operator's operation of the joining device 1, each wheel 92B rotates in the +x-axis direction, and the rollers 92A also rotate in the +x-axis direction. Rotate. Further, when the vehicle body 91 is moved backward in the -x-axis direction, each wheel 92B rotates in the -x-axis direction, and furthermore, the roller 92A similarly rotates in the -x-axis direction. When the vehicle body 91 moves forward in the +x-axis direction and backward in the -x-axis direction, the rollers 92A move in the x-axis direction between the pair of wheel running lines Lk along which the opposing wheels 92B run. It travels along the roller travel line Ls. The position where this roller 92A runs corresponds to an overlapping part 101 formed by overlapping the edges of the waterproof sheet 100BB and the waterproof sheet 100BA, and the solvent Q is supplied from the nozzle 5 provided in the supply system 10, which will be described later. After that, by rolling this overlapping portion 101 from the front side of the waterproof sheet 100BA with the roller 92A, the waterproof sheet 100BA and the waterproof sheet 100BB can be joined.

In addition, each roller 92A having such a configuration is arranged between two side plates 71 (a first roller indicating member and a second roller supporting member) in the pressing part 7, and is attached to each of the two side plates 71. , one end and the other end of the roller 92A are rotatably connected. Furthermore, these two side plates 71 are connected to the frame 94 (top plate 941) via a total of four connecting members 72. More specifically, as shown in FIGS. 6 and 7, the two side plates 71 are connected with connecting members 72 corresponding to the upper front and rear corners of one side plate 71. Two connecting members 72 (first connecting members) are connected to one side plate 71 (first roller indicating member), and two connecting members 72 are connected to the other side plate 71 (second roller indicating member). (second connecting member) are connected.

Furthermore, the connecting member 72 (first connecting member) connected to one side plate 71 and the connecting member 72 (second connecting member) connected to the other side plate 71 are arranged above and below with respect to the top plate 941, respectively. The shaft portion 74 (first shaft member and second shaft member) is connected to be slidable in the direction (z-axis direction), and the shaft portion 74 has a coil shape (spring shape), and the shaft portion 74 is connected to the inside of the shaft portion 74 on the underside of the top plate 941. It has a coil part 73 (a first spring and a second spring) as a biasing member into which a part 74 is inserted. The shaft portion 74 is connected to the top plate 941 while resisting the spring force of the coil portion 73.

With the connecting member 72 having such a structure and having a biasing member, in each pressing section 7, the connecting member 72 (first connecting member) connected to one side plate 71 and the connecting member connected to the other side plate 71 are connected to each other. The coil portion 73 (first spring and second spring) included in the member 72 (second connecting member) expands and contracts independently, so that the roller 92A is moved against the frame 94 (top plate 941), one end thereof, and the other end. The ends (each end) can independently swing in the vertical direction (z-axis direction) and can be biased downward (-z-axis direction) (Figures 2 and 3 , see Figures 6 and 7).

Therefore, in each pressing portion 7, the roller 92A is swingable in the up-down direction (z-axis direction) with respect to the top plate 941 (vehicle body 91) at one end and the other end, respectively. −z-axis direction). Therefore, when joining the waterproof sheet 100BA and the waterproof sheet 100BB by rolling the waterproof sheet 100BA from the front side with the roller 92A provided in the pressing part 7, the coil part 73 having different urging force is inserted into the shaft part 74. By doing so, the magnitude of the load applied to the waterproof sheet 100BA can be set to a desired magnitude.

In addition, when joining the waterproof sheet 100BA and the waterproof sheet 100BB, even if unevenness, that is, a step is formed on the floor on which the waterproof sheet 100 is laid, one end of the roller 92A and the other end of each Since it can independently swing (move) in the vertical direction (z-axis direction) with respect to the top plate 941 (vehicle body 91), the roller 92A can be made to follow the shape of the unevenness. Therefore, the roller 92A overcomes the unevenness and reliably joins the waterproof sheets 100BA and 100BB at the overlapped portion 101 even in the waterproof sheet 100 corresponding to the position where the unevenness is formed on the floor. can do. In other words, the rollers 92A can roll the overlapping portions 101 of the waterproof sheets 100B with excellent accuracy.

Furthermore, as shown in FIGS. 2 and 6, a total of three pressing parts 7 including a plurality of rollers 92A are connected to the vehicle body 91 in a line along the x-axis direction (forward direction), each independently. ing. In this way, a plurality (seven in this embodiment) of the rollers 92A that can follow the shape of the unevenness are provided corresponding to one pressing portion 7, and a plurality (three in this embodiment) of the rollers 92A are provided corresponding to one pressing portion 7. The pressing portions 7 are independently connected to the vehicle body 91 along the x-axis direction. By making each pressing section 7 have such a configuration, each roller 92A included in one pressing section 7 can independently adjust the unevenness with almost no influence on the adjacent roller 92A in the x-axis direction. It is possible to follow the shape. Therefore, the waterproof sheet 100BA and the waterproof sheet 100BB can be joined with excellent accuracy.

In addition, in the pressing section 7 including the plurality of rollers 92A, by using coil sections 73 of the connecting members 72 provided in each pressing section 7 that have different spring elastic forces, the pressing section 7 located at the front and the coil section 73 located at the rear are used. The magnitude of the load (pressing force) applied to the waterproof sheet 100BA by the plurality of rollers 92A (roller group) is greater in the pressing part 7 located at the rear than in the pressing part 7 located in the front. is preferably set large. Specifically, the pressing force applied to the waterproof sheet 100BA by the pressing part 7 located at the front is 2 kg/pressing part, and the pressing force applied to the waterproof sheet 100BA by the two pressing parts 7 located at the rear is 5 kg/pressing force, respectively. Preferably. As a result, the waterproof sheet 100BA and the waterproof sheet 100BB are temporarily joined at the overlapped portion 101 by the pressing part 7 located at the front, and then the main joining is performed by the two pressing parts 7 located at the rear. That will happen. Therefore, the waterproof sheet 100BA and the waterproof sheet 100BB can be joined with better strength.

The number of pressing parts 7 arranged on the vehicle body 91 (frame 94) is three along the +x-axis direction, that is, along the roller travel line Ls, but it may be more or less than three. However, the number is not limited, and it may be one. However, by providing a plurality of them as in this embodiment, the waterproof sheet 100BA and the waterproof sheet 100BB can be joined more reliably.

The nozzle support section 3 supports the nozzle 5 included in the supply system 10, and in this embodiment, as shown in FIGS. 1 to 4, FIG. 8, and FIG. On the side, it is connected to the vehicle body 91 via the nozzle support swing mechanism 6 . Thereby, the nozzle support part 3 arranges the nozzle 5 in correspondence with the overlapping part 101 of the waterproof sheets 100B on the front side (+x-axis direction side) of the roller 92A included in the pressing part 7.

As shown in FIGS. 8 and 9, the nozzle support section 3 includes a first support section 33 rotatably connected to the nozzle support swing mechanism 6 in parallel to the xz plane, and a second support section that supports the nozzle 5. 34.

The first support portion 33 includes two side plates 331, a bottom plate 334, two shaft portions 332, and two connection plates 336.

Among these, the bottom plate 334 is a flat plate arranged parallel to the xy plane, and the bottom plate 334 has a -y axis direction (right side) end and a +y axis direction (left side) end thereof, respectively. Side plates 331 arranged along are joined.

Furthermore, the two connecting plates 336 are each elongated objects extending in the x-axis direction, and are arranged facing each other along the y-axis direction with a gap between them, and are placed on the −x-axis direction side (rear side). The end portion of the nozzle support swing mechanism 6 is joined to the front plate 61 of the nozzle support swing mechanism 6.

Furthermore, the two shaft parts 332 have a cylindrical overall shape, and each has a hole provided along the y-axis direction in the side plate 331 and the connecting plate 336 on the -y-axis direction side (right side), and , are inserted into holes provided along the y-axis direction in the side plate 331 and the connecting plate 336 on the +y-axis direction side (left side). As a result, the first support part 33 and the second support part 34, that is, the nozzle support part 3, is a hole provided along the y-axis direction (horizontal direction) with respect to the nozzle support part swing mechanism 6. It is fixed so as to be rotatable in parallel to the xz plane with the shaft portion 332 inserted therein as a rotation center. Therefore, the shaft portion 332 constitutes a first rotation point that allows the nozzle support portion 3 to rotate around its axis, that is, around the y-axis, with respect to the nozzle support portion swinging mechanism 6. Note that the configuration of the nozzle support section 3 that allows the nozzle support section 3 to rotate around the first rotation point is not limited to such a configuration, and for example, the configuration of the nozzle support section 3 that allows the nozzle support section 3 to rotate around the first rotation point is not limited to this configuration. Also, by applying the configuration of the nozzle support swing mechanism 6 that allows the nozzle support swing mechanism 6 to rotate around the axis, the nozzle support 3 can be rotated around the first rotation point. It can be done.

The second support portion 34 also includes a side plate 341, a top plate 342, two wheels 343 rotatably supported by the side plate 341, a connecting member 344 that connects the flow path 31 and the top plate 342, and a top plate 342. It has a connecting member 345 that connects the nozzle 5.

Among these, the side plate 341 is a flat plate arranged along the z-axis direction. The two wheels 343 (second wheels) are disc-shaped and are rotatably supported on the side surface of the side plate 341 at the lower end thereof with a gap therebetween, with the thickness direction of the side plate 341 being the axis of rotation. ing. Then, when the vehicle body 91 moves forward, the wheels 343 rotate, so that the second support portion 34 travels together with the vehicle body 91 while supporting the nozzle 5 .

Furthermore, the top plate 342 is an elongated object arranged parallel to the xy plane, and the +z-axis direction (upper side) end of the side plate 341 is joined to one end thereof. Further, the connecting member 344 has a cylindrical shape, and is inserted into a hole provided in the bottom plate 334 of the first support part 33 along the z-axis direction, and connects the tip of the flow path 31 and the other side of the top plate 342. is connected to the end side. Thereby, the flow path 31 is fixed to the second support part 34, and the second support part 34 is inserted into the hole provided along the z-axis direction (vertical direction) with respect to the first support part 33. It is fixed so as to be rotatable in parallel to the xy plane, with the connecting member 344 inserted therethrough as a rotation center.

Further, the connecting member 345 has a cylindrical shape, is arranged along the z-axis direction, and connects one end side of the top plate 342 to the -z-axis direction of the top plate 342 at the end on the +z-axis direction side (upper side). The base end side of the nozzle 5 is connected at the side surface (lower surface), and the nozzle 5 is parallel to the They are connected so that they protrude to the sides. As a result, the nozzle 5 rotates about the connecting member 344 with respect to the first support part 33 of the second support part 34, so that the tip of the nozzle 5 is rotated by -y as shown in FIG. 8(a). It is possible to take both a position where the tip of the nozzle 5 faces the axial direction side (right side) and a position where the tip of the nozzle 5 faces the +y axis direction side (left side) as shown in FIG. 8(b). That is, the nozzle 5 has two positions: a first position in which the tip of the nozzle 5 is located in a direction perpendicular to the +x-axis direction (forward direction) (-y-axis direction side); direction), and a second position in which the tip of the nozzle 5 is located in the direction perpendicular to the negative angle (+y-axis direction).

Further, when the nozzle 5 is fixed to the top plate 342 via the connecting member 345, it is arranged to correspond to the gap between the two wheels 343 (second wheels). The leading end side can be stably arranged corresponding to the overlapping portion 101 between the waterproof sheets 100B.

Moreover, an internal flow path 311, an internal flow path 312, and an internal flow path 313 through which the solvent Q flows are formed inside the connecting member 344, the connecting member 345, and the top plate 342, respectively. Therefore, as shown in FIG. 8, the tip side of the flow path 31 is connected to the +z-axis direction (upper) end of the connection member 344, and the −z-axis direction (lower) end of the connection member 345 is connected to the end of the flow path 31. By connecting the proximal ends of the nozzles 5 in this section, the solvent Q from the flow path 31 can be supplied to the nozzle 5 via the internal flow paths in the connecting members 344 and 345 and the top plate 342. That is, the internal channels 311 to 313 constitute a channel through which the solvent Q passes (flows) between the channel 31 and the nozzle 5. Note that, hereinafter, unless otherwise specified, the flow path 31 and the internal flow paths 311 to 313 will be simply referred to as the flow path 31.

Note that the connecting member 344, the connecting member 345, and the top plate 342, that is, the members in which the internal channels 311 to 313 are formed in the nozzle support part 3, are used from the viewpoint that a strong organic solvent may be used as the solvent Q. is preferably made of stainless steel, more preferably SUS316/316L, SUS304, still more preferably SUS316/316L. Thereby, corrosion of the connecting members 344, 345 and the top plate 342 by the solvent Q can be accurately suppressed or prevented.

Further, the flow path 31 is connected to a connecting member 344, which is an axis around which the second support portion 34 rotates in parallel to the xy plane, and further, the flow path 31 is connected to this connecting member 344, By forming an internal flow path along the lines, the flow path 31 can be reliably prevented from becoming an obstacle when rotating the second support part 34, and the second support part 34 can be smoothly rotated. Can be done.

As described above, the nozzle support section 3 having such a configuration is connected to the vehicle body 91 via the nozzle support section swinging mechanism 6 on the front side of the vehicle body 91, but this connection position is different in the present invention. , when the nozzle 5 is viewed from a position 125 cm behind and 150 cm high from the nozzle 5 provided in the nozzle support section 3, the angle formed with the floor surface on which the vehicle body 91 is placed, that is, the floor surface on which the waterproof sheet 100B is laid, is θ1. When the angle between the pole 96 and the floor surface is θ2, the position is set to satisfy the relationship 40≦θ1≦θ2 (see FIG. 2).

Here, the position 125 cm rearward and 150 cm high from the nozzle 5 means that when the worker who is laying the waterproof sheet 100B (joining work) grasps the handle 93, the worker can easily damage his or her eyes. It can be said that this is a position where it can be placed. Therefore, the relational expression between the angle θ1 [°] between the nozzle 5 and the floor when viewed from that position and the angle θ2 [°] between the pole 96 and the floor satisfies 40≦θ1≦θ2. During installation of the waterproof sheet 100B, when the worker pushes the joining device 1 toward the +x-axis direction, that is, toward the front, the pole 96, handle 93, etc. located on the +z-axis direction, ie, the upper side of the vehicle body 91 The distal end of the nozzle 5 can be clearly viewed by the operator through a space formed inside the nozzle support swing mechanism 6, which will be described later, by accurately suppressing or preventing the distal end of the nozzle 5 from being obstructed by the nozzle. Therefore, the operator can join the waterproof sheets 100B to each other in the overlapping portion 101 of the waterproof sheets 100B using the joining device 1, that is, install the waterproof sheets 100B with excellent accuracy.

Further, the relational expression between angle θ1 and angle θ2 may satisfy 40≦θ1≦θ2, but preferably satisfies 40≦0.5・θ2≦θ1≦θ2, and 40≦0.8・θ2 It is more preferable to satisfy ≦θ1≦θ2. Thereby, the above-mentioned effect can be exhibited more markedly.

Furthermore, the magnitude of the angle θ1 is specifically set to preferably 40° or more and 60° or less, more preferably 48° or more and 57° or less. This ensures that the relationship 40≦θ1≦θ2 is satisfied.

As shown in FIGS. 1 to 4, 8, and 9, the nozzle support swing mechanism 6 is located between the nozzle support 3 and the vehicle body 91 in the x-axis direction, and supports the nozzle 5. The nozzle support part 3 is supported movably in the ±z axis direction with respect to the vehicle body 91.

The nozzle support swing mechanism 6 includes a front plate 61, two side plates 62, a shaft portion 63, and two connection plates 64.

Among these, the front plate 61 is a long object extending in the y-axis direction arranged parallel to the yz plane, and has an end on the −y-axis direction side (right side) and an end on the +y-axis direction side (left side). Side plates 62 arranged along the x-axis direction parallel to the xz plane are joined to the respective parts. The front plate 61 and the side plates 62 constitute a U-shaped frame member.

The two connecting plates 64 are elongated objects that extend parallel to the xz plane in the z-axis direction, and are arranged facing each other along the y-axis direction with a gap between them. The lower end portions are respectively joined to the +x-axis direction side (front side) of the two side plates 942 of the frame 94.

Further, the shaft portion 63 has a cylindrical (rod-like) overall shape, and includes a side plate 62 and a connecting plate 64 on the −y-axis direction side (right side), and a side plate 62 and a connecting plate 64 on the +y-axis direction side (left side). They are inserted into holes provided in each of the plates 64 along the y-axis direction. As a result, the nozzle support swing mechanism 6 and, in turn, the nozzle support 3 move the shaft 63 inserted into the hole provided along the y-axis direction (horizontal direction) to the side plate 942 (frame 94). It is rotatably fixed parallel to the xz plane as a rotation center. Therefore, the shaft portion 63 constitutes a second rotation point that allows the nozzle support portion swinging mechanism 6 to rotate around its axis, that is, around the y-axis, with respect to the frame 94 and, in turn, the vehicle body 91. Note that the configuration of the nozzle support swing mechanism 6 that allows the nozzle support swing mechanism 6 to rotate about the second rotation point around the axis is not limited to this configuration, and for example, By applying the configuration of the nozzle support part 3 that allows the nozzle support part 3 to rotate around the axis with the first rotation point, it is also possible to rotate the nozzle support part swinging mechanism 6 with the second rotation point around the axis. It can be made rotatable.

In the nozzle support section 3 including the first support section 33 and the second support section 34 configured as described above, the second support section 34 connects the connection member 344 with which the second support section 34 is provided, as described above. It is rotatably fixed to the first support part 33 connected to the nozzle support part swinging mechanism 6 as a rotation center (around the z-axis). Therefore, as shown in FIG. 8, due to the rotation of the second support part 34 with respect to the first support part 33, the nozzle 5 fixed to the second support part 34 is also rotated by the connection member 344 along the z-axis direction. It can be rotated in the direction of arrow β ₁ and in the direction of arrow β ₂ around the axis, that is, around the z-axis.

As a result, before the joining device 1 joins the waterproof sheets 100B to each other, when inserting (arranging) the nozzle 5 on the back side of the upper waterproof sheet 100BA, the nozzle 5 is rotated in the arrow _β1 direction. After setting the tip of the nozzle 5 to a position where it faces the +y-axis side (second position; see FIG. 8(b)), rotate the nozzle 5 in _{the two} directions of arrow β so that the tip of the nozzle 5 faces - By setting the position facing the y-axis side (first position; see FIG. 8(a)), the insertion operation can be performed relatively easily. 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 again in the direction of arrow _β1 . In this way, the insertion and removal operations of the nozzle 5 can be performed quickly and smoothly by making the nozzle 5 rotatable around the z-axis. Therefore, the operator can join the waterproof sheets 100B to each other at the overlapping portions 101 of the waterproof sheets 100B using the joining device 1 with excellent workability.

Note that the top plate 342 and the bottom plate 334 have two positions: a position where the tip of the nozzle 5 faces the −y-axis side (see FIG. 8(a)), and a position where the tip of the nozzle 5 faces the +y-axis side (see FIG. 8(b)). (see), two holes are provided in the top plate 342 and one hole is provided in the bottom plate 334 so that communication holes communicating with each other are formed. When rotating the nozzle 5 around the z-axis, the fixing rod 346 is removed from the communication hole, and the tip of the nozzle 5 is placed in a position facing the −y-axis side, as shown in FIG. 8(a). When doing so, the second support part 34 can be fixed to the first support part 33 at this position by inserting the fixing rod 346 into the communication hole. Therefore, when moving the joining device 1 forward along the +x-axis direction to join the waterproof sheets 100BA and 100BB, the nozzle 5 rotates in the arrow _β1 direction. Misalignment can be reliably prevented from occurring. Furthermore, as shown in FIG. 8(b), when the tip of the nozzle 5 is placed in a position facing the +y-axis side, by inserting the fixing rod 346 into the communication hole, the second support part 34 is placed in this position. can be fixed to the first support part 33. Further, the fixing rod 346 may be inserted into the through hole by either fitting or screwing, and the fixing rod 346 can be inserted by operating a lever connected to the fixing rod 346. It may be configured to be movable between both the insertion position and the extraction position where the fixing rod 346 is extracted.

Moreover, in the nozzle support part 3 and the nozzle support part rocking mechanism 6, as described above, the first support part 33 and the second support part 34, that is, the nozzle support part 3 is connected to the shaft part of the first support part 33. It is rotatably fixed to the nozzle support swing mechanism 6 connected to the frame 94 with 332 as a rotation center (second rotation point). Therefore, by the rotation of the first support part 33 with respect to the nozzle support part swing mechanism 6, as shown in FIGS. 8(b) and 9(a), the first support part 33 and the second support part 34 That is, the nozzle support portion 3 can be rotated in the arrow α ₁ direction and the arrow α ₂ direction about the axis of the shaft portion 332 along the y-axis direction, that is, around the y-axis.

Further, the nozzle support swing mechanism 6 and, in turn, the nozzle support 3 are rotated relative to the frame 94 of the vehicle body 91 with the shaft 63 of the nozzle support swing mechanism 6 as a rotation center (first rotation point). It is rotatably fixed. Therefore, by rotating the nozzle support swing mechanism 6 with respect to the frame 94, as shown in FIG. It can be rotated about the axis 63, that is, about the y-axis, in _{the three} directions of arrow α and _{the four} directions of arrow α.

Therefore, the rotation of the shaft portion 332 of the nozzle support portion 3 about the rotation center (second rotation point), and the rotation of the nozzle support portion swinging mechanism 6 and the shaft portion 63 of the nozzle support portion 3 as well. The nozzle 5 fixed to the second support part 34 of the nozzle support part 3 can also be moved by the rotation about the axis (first rotation point). That is, by rotating the nozzle support part 3 around the y-axis parallel to the wheels 92B, the nozzle 5 is supported movably in the z-axis direction (vertical direction) with respect to the frame 94 (vehicle body 91). be able to. Moreover, the nozzle support part swing mechanism 6 and the nozzle support part 3 can support the nozzle 5 so as to be movable downward by the weight of the second support part 34 (nozzle support part 3).

The second support part 34 has a wheel 343 (second wheel) rotatably supported at the lower end of the side plate 341 (second support part 34) with the thickness direction of the side surface of the side plate 341 as a rotation axis. ing. As a result, this wheel 343 inserts the nozzle 5 into the back side of the upper waterproof sheet 100BA, that is, into the overlapping part 101 between the waterproof sheets 100B, and moves along the y-axis direction as shown in FIG. 8(a). It is configured to be able to rotate around the y-axis when placed in the same position. Therefore, when the vehicle body 91 moves forward along the x-axis direction, the nozzle support portion 3 similarly moves forward while being connected to the vehicle body 91, but at this time, the wheels 343 move as shown in FIG. 9(a). It rotates while being grounded on the waterproof sheet 100BB.

In this way, when the vehicle body 91 moves forward, that is, when the joining device 1 moves forward, the wheels 343 provided at the lower end of the side plate 341 included in the nozzle support section 3 rotate while being in contact with the waterproof sheet 100BB. Since the side plate 341 included in the second support portion 34 moves forward, it is possible to accurately suppress or prevent the nozzle 5 fixed to the side plate 341 from shifting from the overlapping portion 101 of the waterproof sheets 100B.

In particular, by continuously moving the nozzle 5 up and down, the nozzle 5 is positioned below the frame 94 (vehicle body 91), and the nozzle 5 is positioned above the frame 94 (vehicle body 91). Furthermore, the structure is such that the nozzle 5 can be moved downward by the weight of the second support part 34. Therefore, when joining the waterproof sheet 100BA and the waterproof sheet 100BB, even if unevenness, that is, a step is formed on the floor on which the waterproof sheet 100 is laid, the side plate 341 provided with the wheels 343, that is, the second support part 34 is The wheel 343 can be rotated while following the shape of the unevenness. Therefore, the nozzle 5 fixed to the side plate 341 can also be made to follow the shape of the unevenness, so that the nozzle 5 is more accurately prevented from shifting from the overlapping part 101 of the waterproof sheets 100B. or can be prevented. Therefore, the solvent Q can be supplied with excellent accuracy to the overlapping portions 101 of the waterproof sheets 100B.

Note that when the vehicle body 91 moves forward, if it is possible to reduce the friction between the lower end of the side plate 341 provided in the second support part 34 and the surface of the waterproof sheet 100BB, the lower end of the wheel 343 against the lower end of the side plate 341 can be reduced. The arrangement can also be omitted.

Further, the nozzle support part 3 is rotated about the shaft part 63 with respect to the frame 94 (vehicle body 91) of the nozzle support part swing mechanism 6, so that the nozzle support part 3 is rotated as shown in FIG. 9(a). 3, that is, the position where the nozzle 5 is arranged corresponding to the overlapping part 101 between the waterproof sheets 100B (position where liquid material can be applied), and the nozzle support part 3, that is, the nozzle 5, as shown in FIG. It can be spaced apart from the seat 100B in the +z-axis direction (height direction) and take a position corresponding to the vehicle body 91 in the x-axis direction, that is, a position above the vehicle body 91 (retracted position). In this way, by configuring the joining device 1 so that the nozzle support part 3, that is, the nozzle 5 can take the retracted position located above the vehicle body 91, especially when the waterproof sheet 100B is not being installed, The joining device 1 can be moved efficiently, and as a result, the workability of laying the waterproof sheet 100B can be improved.

Furthermore, the rotation angle range of the nozzle support part 3 with the shaft part 63 as the rotation center between the liquid material application possible position shown in FIG. 9(a) and the retracted position shown in FIG. 9(b). is preferably in the range of about 0° to 180°, more preferably in the range of about 0° to 150°. Thereby, the nozzle support portion 3 can be reliably placed above the vehicle body 91 in the retracted position.

Further, a locking plate 65, which is a long object extending in the z-axis direction, is arranged on a side plate 942 on the +y-axis direction side of the frame 94 (vehicle body 91) so that its plane is substantially parallel to the xz plane. In this state, it is joined in a state protruding from the side plate 942 in the +z-axis direction. As a result, when the nozzle support portion 3 is placed in the retracted position, the locking plate 65 functions as a locking portion that locks the nozzle support portion 3, and the nozzle is positioned above the vehicle body 91. The support part 3 can be stably arranged.

Further, on the +x-axis direction side of the frame 94 (vehicle body 91), the nozzle support swing mechanism 6 has a U-shaped configuration formed by a front plate 61 and a side plate 62, with the axis of the shaft portion 63 as the center of rotation. A frame member is rotatably fixed to the frame 94. A frame member consisting of the front plate 61 and the side plates 62 has a U-shaped frame shape, and the inside thereof is constituted by a space. Therefore, when the relational expression between angle θ1 and angle θ2 satisfies 40≦θ1≦θ2, when the operator moves the welding device 1 forward in the +x-axis direction while holding the handle 93, The operator can visually check the position of the nozzle 5 through the inside of this frame member.

The supply system 10 is a structure that is mounted on a vehicle body 91 included in the traveling system 9 and supplies the solvent Q to the waterproof sheet 100, more specifically, to the overlapping portion 101 where the waterproof sheets 100B overlap each other while traveling together with the traveling system 9. It is.

As shown in FIG. 5, etc., the supply system 10 communicates with a storage section 2 that stores the solvent Q, a flow path 31 through which the solvent Q from the storage section 2 passes, and a flow path 31 that communicates with the storage section 2. The nozzle 5 supplies (discharges) the solvent Q that has passed through the flow path 31 to the overlapping portion 101 where the waterproof sheets 100B overlap, the flow rate adjustment unit 41 adjusts the flow rate of the solvent Q discharged from the nozzle 5, and the flow path. 31, and a lever 44 connected to the opening/closing valve 43 via a wire 45. In this order, the levers 44 are arranged in communication with each other via the flow path 31 and connected to the on-off valve 43 via a wire 45. That is, a flow rate adjusting section 41 and an on-off valve 43 are provided in this order in the middle of a flow path 31 connecting the storage section 2 and the nozzle 5, and a lever 44 is connected to the on-off valve 43 via a wire 45. It is provided.

Each part included in the supply system 10 having such a configuration is arranged on a vehicle body 91 included in the traveling system 9. Each part constituting this supply system 10 will be explained below.

In this embodiment, the storage section 2 is comprised of a cylindrical tank (solvent tank), as shown in FIG.

This storage section 2 is movably fixed to a pole 96 above a nozzle 5, which will be described later, via a flow rate adjustment section 41, a flow path 31, and an on-off valve 43. has been done.

The storage portion 2 stores a solvent Q that is supplied to the overlapping portion 101 and used for welding the waterproof sheets 100B (the waterproof sheets 100BA and 100BB) together in the overlapping portion 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.

These solvents Q have a viscosity at 20° C. of about 0.1 mPa·s or more and 5.0 mPa·s or less, and tetrahydrofuran has a viscosity of about 0.58 mPa·s. Therefore, by setting the height of the storage section 2 and the number and diameter of the discharge ports of the nozzle 5 within the ranges described below, the nozzle discharge flow rate (when full) can be increased from 1.0 mL/s to 1.6 mL/s. It becomes possible to relatively easily satisfy both of the following requirements: and that the nozzle discharge flow rate (at 1/3 volume) is 0.8 mL/s or more and 1.2 mL/s or less.

One end (base end) of a flow path 31 whose other end (tip) communicates with the nozzle 5 is connected to the storage section 2 at its bottom (lower end), and the storage section 2 is connected in a direction perpendicular to the nozzle 5. , the solvent Q stored in the storage section 2 is configured to be supplied to the nozzle 5 via the flow path 31 due to its own weight.

At this time, the height of the storage section 2 is preferably set to 0.3 m or more and 1.2 m or less, more preferably 0.8 m or more and 1.0 m or less, relative to the floor on which the waterproof sheet 100B is laid. and fixed to the pole 96.

Further, the capacity of the storage section 2 is preferably set to 500 mL or more and 1000 mL or less, more preferably 500 mL or more and 1000 mL or less.

By setting the height of the storage section 2 and the capacity of the storage section 2 within the above ranges, when the solvent Q is discharged (discharged) from the nozzle 5 through the flow path 31 due to its own weight, The nozzle discharge flow rate (when full) is 1.0 mL/s or more and 1.6 mL/s or less, and the nozzle discharge flow rate (when 1/3 volume) is 0.8 mL/s or more and 1.2 mL/s. Both of the following can be satisfied relatively easily.

The reservoir 2 is transparent or semi-transparent, and as shown in FIGS. 1 to 3, a marker is provided in the reservoir 2 at a position where the solvent Q is full. A metal fitting for fixing the storage section 2 to the pole 96 is provided at a position that is 1/3 of the distance. As a result, the operator can visually check the amount of solvent Q filled in the reservoir 2 even during the installation of the waterproof sheet 100B, and can therefore easily know the timing for replenishing the solvent Q. Note that a marker may be provided at the position where the solvent Q is 1/3 of the full amount as well as at the position where the solvent Q is full.

The flow path 31 is fluid-tightly connected to the bottom of the storage section 2, the flow rate adjustment section 41, the on-off valve 43, and the nozzle 5, and is thus disposed on the vehicle body 91.

The flow path 31 is connected at one end and the other end to the storage section 2 and the nozzle 5, respectively, so that the solvent Q stored in the storage section 2 is supplied to the nozzle 5.

Further, the channel 31 can be partially or entirely composed of a metal or resin pipe through which the solvent Q passes, but if the solvent Q is a strong organic solvent such as tetrahydrofuran, Teflon (Registered Trademark) tube, silicone tube, or the like.

The diameter (inner diameter) of the flow path 31 on its inner circumferential surface is preferably set to approximately 0.7 mm or more and 3.0 mm or less, more preferably approximately 1.0 mm or more and 2.0 mm or less. By setting the diameter within the range, when the solvent Q is discharged (discharged) from the nozzle 5, the nozzle discharge flow rate (when full) is 1.0 mL/s or more and 1.6 mL/s or less. It is possible to relatively easily satisfy both the requirements that the nozzle discharge flow rate (at 1/3 volume) is 0.8 mL/s or more and 1.2 mL/s or less.

Note that the flow path 31 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 other end (tip) of the flow path 31, that is, the tip on the opposite side to the storage section 2, and is thereby disposed on the vehicle body 91.

In this embodiment, the nozzle 5 is composed of a needle-shaped hollow metal body, and communicates with the flow path 31 at its base end, and as shown in FIG. The waterproof sheet 100B has a discharge port 51 that opens toward the rear side, that is, the −x-axis direction side, and discharges the solvent Q that has passed through the flow path 31 to the overlapped portion 101 between the waterproof sheets 100B. 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. Note that when the solvent Q is discharged from the discharge port 51, the nozzle 5 projects in parallel with the xy plane toward the -y axis direction.

In this nozzle 5, a plurality of discharge ports 51 are provided, and the number thereof is preferably 2 or more and 6 or less, more preferably 2 or more and 3 or less, and the diameter thereof is preferably 0.4 mm or more and 0.4 mm or more. The diameter is set to .8 mm or less, more preferably φ0.4 mm or more and 0.6 mm or less. As a result, when discharging (discharging) the solvent Q from the nozzle 5, the nozzle discharge flow rate (when full) is 1.0 mL/s or more and 1.6 mL/s or less, and the nozzle discharge flow rate (1/3 0.8 mL/s or more and 1.2 mL/s or less can be satisfied relatively easily.

Further, the total opening area of the discharge ports 51 in the nozzle 5 is preferably set within a range of 1.50 mm ² or more and 4.01 mm ² or less, more preferably 1.55 mm ² or more and 3.08 mm ^{2 or} less. As a result, when discharging (discharging) the solvent Q from the nozzle 5, the nozzle discharge flow rate (when full) is 1.0 mL/s or more and 1.6 mL/s or less, and the nozzle discharge flow rate (1/3 0.8 mL/s or more and 1.2 mL/s or less can be more easily satisfied.

Note that the solvent Q discharged from the discharge port 51 of the nozzle 5 may have any form such as a waterfall shape, a droplet shape, or a mist shape.
Further, the nozzle 5 may be provided with a reinforcing material for reinforcing the nozzle 5.

As shown in FIGS. 1 and 5, 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 +y-axis direction side, and from the back side of the upper waterproof sheet 100BA. (between the waterproof 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.

The flow rate adjustment unit 41 is fixed near the connection port with the flow path 31 provided on the lower side of the storage unit 2, so that the flow path 31 is connected to an on-off valve 43, which will be described later, arranged on the frame 94. It is fixed above it through. Thereby, it is placed on the vehicle body 91. In this way, since the flow rate adjustment section 41 is provided near the storage section 2, it can be easily operated by the operator.

Further, the flow rate adjustment section 41 is provided midway between the storage section 2 and the nozzle 5 so as to communicate with the flow path 31. That is, the solvent Q flowing through the flow path 31 is connected to the flow path 31 so as to pass through the flow rate adjustment section 41 .

This flow rate adjustment section 41 is composed of, for example, a variable throttle valve. Thereby, the flow rate adjustment unit 41 can steplessly adjust the flow rate of the solvent Q passing through the flow path 31 by changing the aperture opening degree. Such a flow rate adjustment unit 41 adjusts the flow rate of the solvent Q when the storage unit 2 is full of the solvent Q, depending on the type of the solvent Q, before the waterproof sheet is laid, thereby controlling the nozzle discharge. The flow rate (when full) is 1.0 mL/s or more and 1.6 mL/s or less, and the nozzle discharge flow rate (when 1/3 volume) is 0.8 mL/s or more and 1.2 mL/s or less. Both can be satisfied relatively easily.

Note that the flow rate adjustment unit 41 may be configured to adjust the flow rate of the solvent Q by rotating a manually operated screw, as shown in FIG. It may be configured to automatically adjust the flow rate of the solvent Q. In addition, from the viewpoint of improving the efficiency of the work, it is preferable to adjust the flow rate adjustment unit 41 only once before laying the waterproof sheet, but depending on the viscosity of the solvent Q used, etc. It may be carried out during construction.

Furthermore, in this embodiment, a drain 46 is provided between the storage section 2 and the flow rate adjustment section 41 and connected to the flow path 31 . As a result, if air bubbles enter the flow path 31, the air bubbles can be removed via the drain 46. Further, when replacing the solvent Q, the unnecessary solvent Q stored in the storage section 2 can be extracted from the drain 46. Furthermore, since the drain 46 is provided directly below or near the lower part of the storage section 2, it can be easily operated by the operator.

The on-off valve 43 is fixed on a top plate 342 provided on the nozzle support section 3 connected to the frame 94, and is thereby disposed on the vehicle body 91 via the nozzle support section 3.

In the supply system 10, the on-off valve 43 connects the flow path 31 and the nozzle 5, and the internal flow path provided in the top plate 342 among the internal flow paths 311 to 313 connects the flow path 31 and the nozzle 5. 313. By opening and closing the internal flow path 313 using the on-off valve 43, supply of the solvent Q from the nozzle 5 to the overlapping portion 101 is switched on/off.

In this embodiment, as shown in FIG. 10, the on-off valve 43 includes a cylindrical shaft tube 434 connected to the top plate 342, a shaft body 432 inserted through the shaft tube 434, and a coil-shaped (spring-shaped) shaft tube 434. It has a coil body 431 as a biasing member in which a shaft body 432 is inserted inside a shaft cylinder 434 . The shaft body 432 is housed in the shaft cylinder 434 in a state where it resists the spring force of the coil body 431.

The shaft body 432 has a needle-shaped body whose thickness gradually decreases at the distal end side 433, and a wire 45 is connected at its base end, and the end of the wire 45 on the opposite side from the shaft body 432 is connected to the shaft body 432. is connected to a lever 44.

As described above, the lever 44 is provided in the middle of the pole 96 connected to the vehicle body 91. When the lever 44 is operated (pulled) by the operator, the shaft body 432 is pulled toward the lever 44 side, that is, the +z-axis direction side, through the wire 45 against the spring force of the coil body 431, and is pulled position (permissible position) (see FIG. 10(b)). On the other hand, when the pulled state of the wire 45 is released by operating the lever 44, the shaft body 432 moves to the side opposite to the lever 44, that is, to the -z axis direction side, due to the spring force of the coil body 431. 10(a)). In this way, by operating the lever 44 by the operator, the shaft body 432 can take both the traction position and the non-traction position. Furthermore, by providing the lever 44 with a fixing mechanism that maintains the pulled state, the shaft body 432 can be maintained at the permissible position when the fixing mechanism is activated (fixed), and the shaft body 432 can be disposed in the non-operating position when the fixing mechanism is released. It can be maintained and placed in an acceptable position.

Further, in the shaft body 432, the tip side 433 has a shape that fits into the shape of a fitting portion 314 located in the middle of the internal flow path 313 provided in the top plate 342. Therefore, when the shaft body 432 is moved in the −z-axis direction side (downward) through the wire 45 and placed in the non-pulling position (non-permissible position) by operating the lever 44, the shaft body 432 is fitted onto the distal end side 433. The joint portions 314 are fitted together, thereby blocking passage of the solvent Q within the internal flow path 313. That is, passage of the solvent Q within the internal flow path 313 is not allowed.

On the other hand, by operating the lever 44 and pulling the wire 45, the shaft body 432 is moved to the +z-axis direction side (upper side) and placed in the pulling position (permissible position). The fitting of the distal end side 433 to the internal flow path 313 is released, so that the passage of the solvent Q within the internal flow path 313 is not blocked, and the passage of the solvent Q within the internal flow path 313 is allowed.

In this way, the distal end side 433 of the shaft body 432 functions as a gate valve that controls the passage (flow) of the solvent Q within the internal flow path 313 . Further, the lever 44 and the wire 45 constitute an opening/closing operation section that operates the movement of the shaft body 432, that is, the opening/closing valve 43, between a traction position (permissible position) and a non-pulling position (non-permissible position).

Therefore, when moving the joining device 1 forward in the +x-axis direction and joining the waterproof sheets 100B together at the overlapping portion 101, that is, when laying the waterproof sheets, the tip of the shaft body 432 is moved by the operator's operation of the lever 44. By arranging the side 433 at a permissible position where the side 433 is not located in the fitting part 314 of the internal flow path 313, the solvent Q can be supplied to the overlapping part 101 (see FIG. 10(b)). On the other hand, when moving the construction site or during non-construction operations such as when aligning the welding device 1 with respect to the overlapped portion 101, the distal end side 433 of the shaft body 432 is moved into the internal flow path by the operator's operation of the lever 44. By arranging it at the permissible position located in the fitting portion 314 of 313, the supply of the solvent Q to this overlapping portion 101 is stopped (see FIG. 10(a)). In this way, by operating the lever 44 by the operator who performs the work of joining the waterproof sheet 100, it is possible to switch between supply (on) and non-supply (off) of the solvent Q from the nozzle 5 to the overlapping portion 101.

As described above, this lever 44 is provided in the middle of a pole 96 provided on the +z-axis direction side of the vehicle body 91. Therefore, since the operator can operate the lever 44 relatively easily, the supply/non-supply of the solvent Q to the overlapping portion 101 can be easily switched by the lever 44. Therefore, the worker can install the waterproof sheet 100 using the waterproof sheet joining device with excellent workability.

Furthermore, as shown in FIG. 10, the fitting portion 314 has an internal flow path 313 in which the internal flow path 313 changes from the flow along the y-axis direction (horizontal direction) to the flow along the z-axis direction (vertical direction). The shaft body 432 is provided corresponding to the bending point where the direction of the flow path changes, and the shaft body 432 corresponds to the fitting part 314 so that its center axis overlaps the center axis of the internal flow path 313 along the z-axis direction. It is arranged as follows. Then, when the shaft body 432 is placed in a non-permissible position and the distal end side 433 of the shaft body 432 is fitted into the fitting part 314, the distal end side 433 of the shaft body 432 is inserted into the interior along the z-axis direction. It is inserted into the flow path 313 (see FIG. 10(a)). At this time, the shaft body 432, whose thickness gradually increases from the distal end side 433 to the proximal end side, is configured so that the middle part of the shaft body 432 engages with the internal flow path 313, thereby blocking the flow path of the internal flow path 313. ing. With this configuration, by blocking the passage (flow) of the solvent Q, passage of the solvent Q in the internal flow path 313 can be reliably prevented without using a packing or the like in the on-off valve 43. Therefore, even a strong organic solvent such as tetrahydrofuran can be used as the solvent Q without considering deterioration of the packing or the like.

When joining the waterproof sheets 100B to each other using the joining device 1, the opening/closing valve 43 is opened by the operator operating the lever 44 while moving the joining device 1 forward along the +x axis direction by pushing the joining device 1. Then, the storage section 2 and the nozzle 5 are communicated with each other via the flow path 31 (see FIG. 5), and due to the weight of the solvent Q stored in the storage section 2, the outside of the storage section 2, that is, the storage section 2 The solvent Q stored in the reservoir 2 is pushed out to the flow path 31 side connected to the bottom of the waterproof sheet 100B, and is discharged from the discharge port 51 of the nozzle 5 through the flow path 31. is supplied to the overlapping portion 101 of the.

At this time, the nozzle discharge flow rate (when full) of the solvent Q from the discharge port 51 of the nozzle 5 is 1.0 mL/s or more and 1.6 mL/s or less, and the nozzle discharge flow rate (when 1/3 volume is ) is preferably 0.8 mL/s or more and 1.2 mL/s or less. As a result, the waterproof sheet can be used from when the storage amount of the solvent Q stored in the storage section 2 is full to when it becomes 1/3 of the full amount due to its use, that is, when it becomes a small amount. The waterproof sheet 100B can be stably brought into a molten state in the overlapping portion 101 between the waterproof sheets 100B. In addition, the width of the solvent Q leaking from the overlapping portion 101 to the waterproof sheet 100BB side is set to 10 mm or less by reliably preventing the solvent Q from being supplied in an excessive amount to the overlapping portion 101 between the waterproof sheets 100B. The size can be set to .

Here, the nozzle discharge flow rate (when full) of the solvent Q is preferably 1.0 mL/s or more and 1.6 mL/s or less, but preferably 1.2 mL/s or more and 1.4 mL/s or less. is more preferable. Further, the nozzle discharge flow rate (at 1/3 volume) is preferably 0.8 mL/s or more and 1.2 mL/s or less, but more preferably 0.9 mL/s or more and 1.1 mL/s or less. preferable. Thereby, the above-mentioned effect can be exhibited more markedly.

In this way, when the waterproof sheet 100B is in a molten state, the nozzle 5 is located ahead of each roller 92A in the traveling direction of the vehicle body 91. Therefore, after the waterproof sheets 100B are melted in the overlapping part 101, that is, after the solvent Q is supplied by the supply system 10 through the nozzle 5, the waterproof sheets 100B are Rolling pressure is applied from the front side by the provided roller 92A (see FIGS. 1, 2, etc.).

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 The waterproof sheet 100 can be joined using the above-mentioned solvent Q and the rolling of the waterproof sheet 100B constitutes a joining process (waterproof sheet joining method) using the joining apparatus 1.

At this time, as described above, from when the storage amount of the solvent Q stored in the storage section 2 is full to when the storage amount becomes small due to its use, the waterproof sheet 100B is Since it is in a stable molten state, the waterproof sheets 100B can be joined with excellent accuracy by rolling the waterproof sheets 100B with the rollers 92A after supplying the solvent Q.
Note that after the joining process is completed, the nozzle 5 is removed from between the waterproof sheets 100B.

Furthermore, in joining the waterproof sheets 100B at the overlapped portion 101 using the joining device 1 as described above, as shown in FIGS. 101, the front side of the waterproof sheet 100BA (first waterproof sheet) runs along the roller running line Ls, and in the supply system 10, the storage section 2 mounted on the vehicle body 91 runs along the roller running line Ls. The vehicle travels on a different wheel travel line Lk that is parallel to the roller travel line Ls.

Then, the vehicle body 91 traveling on different lines Ls and Lk and the pressing portion 7 are joined via a connecting member 72 provided in the pressing portion 7, and this connecting member 72 allows the pressing portion 7 to connect to the vehicle body 91 (top plate 941). , it is swingable in the vertical direction (z-axis direction) and is biased downward (-z-axis direction). Thereby, the magnitude of the load when the roller 92A included in the pressing section 7 rolls the waterproof sheet 100BA from the front side can be set to a desired magnitude. Therefore, the load applied to the waterproof sheet 100B by the roller 92A included in the pressing section 7 is set as 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 vehicle body 91 is set as B[N]. The configuration 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, for example, even if a full amount of solvent Q is stored in the storage part 2 and the weight of the vehicle body 91 becomes large, the pressing part 7 reliably prevents a large load from being applied to the overlapping portion 101, and sets the load A applied to the waterproof sheets 100B by the rollers 92A to an appropriate size for joining the waterproof sheets 100B together. can do. Therefore, when the waterproof sheets 100B are joined to each other in the overlapped portion 101, the generation of wrinkles in the waterproof sheets 100B located in the overlapped portion 101 is accurately suppressed or prevented, and the waterproof sheets 100B are joined to each other with excellent precision. be able to. Note that when the amount of solvent Q stored becomes small due to its use, the load A applied to the waterproof sheet 100B by the roller 92A becomes smaller than a predetermined value due to the reduced weight of the vehicle body 91. In this case, the load A can be set to a predetermined size by placing a removable weight on the top plate 941 of the frame 94 of the vehicle body 91.

In the present embodiment, a case has been described in which two wheels 92B (first wheels) are provided on the +x-axis direction side of the frame 94, and two casters 92C are provided on the -x-axis direction side of the frame 94. The frame 94 may be provided with four wheels 92B, but is not limited to this case, taking into account the straightness of the vehicle body 91 in the x-axis direction, the steerability in the x-axis direction and the y-axis direction, etc. However, four casters 92C may be provided.

<Second embodiment>
FIG. 11 is a partially enlarged side view showing a pressing part included in the second embodiment of the waterproof sheet joining apparatus of the present invention, and FIG. 12 is a partially enlarged side view showing the pressing part included in the second embodiment of the waterproof sheet joining apparatus of the present invention. FIG.

The second embodiment of the waterproof sheet joining device of the present invention will be described below with reference to this figure, but the explanation will focus on the differences from the first embodiment described above, and the explanation of similar matters will be omitted. .

This embodiment is the same as the first embodiment except that the configuration of the pressing part 7 included in the traveling system 9 is different.

That is, as shown in FIGS. 11 and 12, each pressing section 7 is provided with one roller 92A in this embodiment, and in each pressing section 7, the roller 92A is the same as the roller provided in the adjacent pressing section 7. One end and the other end of the roller 92A are rotatably connected to two side plates 71, spaced apart from each other along the x-axis direction (forward direction). In other words, in this embodiment, one roller 92A is provided in one pressing section 7.

In each pressing section 7, one roller 92A is inserted between the two side plates 71 (first roller indicating member and second roller supporting member) via an axle (rotating shaft). are rotatably supported at one end and the other end, respectively. At the upper ends of the two side plates 71, the two connecting members 72 (first connecting member and second connecting member) connected to each other are connected to the top plate 941 of the vehicle body 91, so that the roller 92A It is rotatably supported with respect to the vehicle body 91 (top plate 941) via the connecting member 72.

In this way, even when the pressing part 7 has a configuration in which one roller 92A is rotatably connected between two (a pair) of side plates 71, the coil part 73 included in the connecting member 72 By expanding and contracting, the roller 92A can be independently pivoted in the vertical direction (z-axis direction) with respect to the frame 94 at one end and the other end, and downward (-z-axis direction). In particular, the roller 92A can be urged downward (in the -z axis direction) independently of the adjacent roller 92A. Therefore, when joining the waterproof sheet 100BA and the waterproof sheet 100BB, even if unevenness, that is, a step is formed on the floor on which the waterproof sheet 100 is laid, each roller 92A independently moves the unevenness. Since the water can be overcome, the waterproof sheet 100BA and the waterproof sheet 100BB can be joined with better accuracy.

In addition, in the configuration shown in FIG. 11, the number of pressing parts 7 arranged on the vehicle body 91 (frame 94), that is, the number of rollers 92A arranged, is determined along the +x-axis direction, that is, along the roller running line Ls. The total number is five, but the number may be more or less than five, and the number is not limited to that, and it may be one. However, by providing a plurality of them as in this embodiment, the waterproof sheet 100BA and the waterproof sheet 100BB can be joined more reliably.

The same effects as in the first embodiment can also be obtained by the waterproof sheet joining apparatus 1 of the second embodiment.

<Third embodiment>
FIG. 13 is a partially enlarged front view showing, in an enlarged manner, a pressing section included in the third embodiment of the waterproof sheet joining device of the present invention.

The third embodiment of the waterproof sheet joining device of the present invention will be described below with reference to this figure, but the explanation will focus on the differences from the above-mentioned second embodiment, and the explanation of similar matters will be omitted. .

This embodiment is the same as the second embodiment except that the configuration of the pressing part 7 included in the traveling system 9 is different.

That is, as shown in FIG. 13, in the present embodiment, both one end and the other end of the axle (rotating shaft) of the roller 92A are spherical, and the two side plates 71 (connecting plates) are spherical. , are each provided with a spherical bearing 711, and one end and the other end of the axle are fixed in contact with the spherical bearing 711 of each side plate 71, respectively. As a result, in the pressing section 7, the roller 92A has an axle supported by a spherical bearing on each side plate 71 (connection plate) at one end and the other end.

In this way, at each end of the roller 92A, the axle is spherically supported by each side plate 71 (connection plate), so that the roller 92A is moved in the vertical direction (± When swinging in the z-axis direction, the roller 92A can also swing in the front-rear direction (±x-axis direction). In other words, the degree of freedom of swinging (movement) of the roller 92A is increased.

Therefore, when joining the waterproof sheet 100BA and the waterproof sheet 100BB, even if unevenness, that is, a step is formed on the floor on which the waterproof sheet 100 is laid, the roller 92A can be made to more reliably overcome the unevenness. I can do it. Therefore, the waterproof sheet 100BA and the waterproof sheet 100BB can be joined more reliably at the overlapped portion 101 even in the waterproof sheet 100 corresponding to the position where the unevenness is formed on the floor. That is, the rolling pressure by the rollers 92A on the overlapping portions 101 of the waterproof sheets 100B can be performed with better accuracy.

The same effects as in the first embodiment can also be obtained by the waterproof sheet joining device 1 of the third embodiment.

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.

For example, the bonding device 1 stores the solvent Q as a liquid material in the storage section 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.

Further, in the present invention, any two or more configurations shown in the first to third embodiments may be combined.

Furthermore, in the waterproof sheet joining method of the present invention, one or more steps can be added for any purpose.

1 Waterproof sheet joining device 2 Storage section 3 Nozzle support section 5 Nozzle 6 Nozzle support section swing mechanism 7 Pressing section 9 Traveling system 10 Supply system 31 Flow path 33 First support section 34 Second support section 41 Flow rate adjustment section 43 On-off valve 44 Lever 45 Wire 46 Drain 47 Supply amount adjustment part 51 Discharge port 61 Front plate 62 Side plate 63 Shaft part 64 Connecting plate 65 Locking plate 71 Side plate 72 Connecting member 73 Coil part 74 Shaft part 91 Vehicle body 92A Roller 92B Wheel 92C Caster 93 Handle 94 Frame 96 Pole 100 Tarpaulin sheet 100A Tarpaulin sheet 100B Tarpaulin sheet 100BA Tarpaulin sheet 100BB Tarpaulin sheet 101 Overlap portion 150B Heat insulation panel 151 Boundary portion 155 Fireproof sheet 160 Purlin 311 Internal channel 312 Internal channel 313 Internal channel 314 Fitting portion 331 Side plate 332 Shaft 334 Bottom plate 336 Connecting plate 341 Side plate 342 Top plate 343 Wheel 344 Connecting member 345 Connecting member 346 Fixed rod 431 Coil body 432 Shaft 433 Tip side 434 Shaft tube 711 Spherical bearing 941 Top plate 942 Side plate 943 Projecting plate 944 Connection member Lk Wheel running line Lk1 Wheel running line Lk2 Wheel running line Ls Roller running line Q Solvent θ1 Angle θ2 Angle

Claims (5)

A waterproof sheet joining device used when laying a waterproof waterproof sheet on a floor surface as 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 vehicle body comprising a frame and wheels rotatably supported by the frame, the vehicle body traveling along the forward direction together with the supply system by rotation of the wheels; and a pole extending upward from the rear side of the frame. a steering unit having a handle provided at the tip of the pole; and a running system having a handle,
Applying the liquid material to an overlapping part formed by overlapping a first waterproof sheet and a second waterproof sheet of the waterproof sheet at their edges along the forward direction with the second waterproof sheet on the lower side. By supplying, the first 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 a rotatably supported roller included in the traveling system. is configured to compress the overlapping portion supplied with the water from the front side of the first waterproof sheet,
The supply system includes a storage section that stores the liquid material, a nozzle that discharges the liquid material to the overlapping section, and a flow path through which the liquid material passes, and these are connected to the storage section and the nozzle. are communicated via the flow path,
The traveling system further includes a nozzle support part disposed on the front side of the vehicle body and supporting the nozzle,
When the nozzle is viewed from a position 125 cm rearward and 150 cm high from the nozzle, the angle formed with the floor surface on which the vehicle body is placed is θ1 [°], and the angle formed between the pole and the floor surface is θ1 [°]. A waterproof sheet joining device characterized by satisfying the relationship 40≦θ1≦θ2 when θ2 [°]. The travel system includes a nozzle support swing mechanism located between the vehicle body and the nozzle support,
The waterproof sheet joining device according to claim 1, wherein the nozzle support swing mechanism has a frame shape with a space inside. The waterproof sheet joining device according to claim 1 or 2, wherein the angle θ1 is 40° or more and 60° or less. The waterproof sheet joining device according to any one of claims 1 to 3, wherein the angle θ2 is 40° or more and 90° or less. A waterproof sheet joining method comprising the step of joining the waterproof sheets using the waterproof sheet joining apparatus according to any one of claims 1 to 4.

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