JP2023000421A - Waterproof sheet bonding device and waterproof sheet bonding method - Google Patents

Abstract

To provide a waterproof sheet bonding device that can supply a liquid material containing a solvent or an adhesive to an overlapping portion between waterproof sheets to be supplied with the liquid material, in a proper amount of supply, which can be set to a desired amount of supply, and a waterproof sheet bonding method using the waterproof sheet bonding device.SOLUTION: A waterproof sheet bonding device 1 has: a supply system 10 that supplies a liquid material to a waterproof sheet 100B; and a travel system 9 that a wheel 92B rotatably supported and travels together with the supply system 10 as the wheel 92B rotates. The supply system 10 has a storage part 2, an air tank 48, a nozzle 5, a channel 31 and a channel 32. Compressed air is supplied from the air tank 48 to the storage part 2 through the channel 32, so that the air causes the liquid material in the storage part 2 to be pushed out to the channel 31 side, resulting in the liquid material to be discharged through the channel 31 from the nozzle 5 to the overlapping portion 101.SELECTED DRAWING: Figure 5

Description

TECHNICAL FIELD The present invention relates to a waterproof sheet joining apparatus and a waterproof sheet joining method.

2. Description of the Related Art In recent years, along with the demand for high durability of buildings, a sheet waterproof structure in which a waterproof sheet is laid is adopted on the roofs of many buildings and on the floors of balconies and the like.

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

It has been proposed to use a supply device to supply the adhesive to the overlapping portions of the waterproof sheets when joining the overlapping portions with an adhesive (see, for example, Patent Document 1).

The supply device described in Patent Literature 1 includes a tank that stores an adhesive, a tube that is connected to the tank and through which the adhesive passes, and a tip portion of the tube that is located on the opposite side of the tank and that supplies the adhesive. and a nozzle for discharging (supplying) to the overlapping portion.

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

The supply device having such a configuration supplies the adhesive from the tank to the overlapped portion of the waterproof sheets through the tip of the nozzle by the siphon principle utilizing the height difference between the tank and the nozzle. In addition to the use of this siphon principle, it is conceivable to use the rotational force of a roller that rotates when advancing the supply device as power for moving the adhesive from the tank to the tip of the nozzle.

However, in these cases, it is technically necessary to set the amount of adhesive supplied from the tip of the nozzle to the overlapping portion of the waterproof sheets to an amount appropriate for joining the waterproof sheets in the overlapping portion. was difficult.

In addition, such a problem is not limited to the case where the adhesive stored in the tank is supplied to the overlapping portion of the waterproof sheets using the supply device described in Patent Document 1, and the solvent is used instead of the adhesive. The same problem occurs when the waterproof sheets are welded together by the solvent, which is stored in a tank as a liquid material and the solvent is supplied to the overlapping portions of the waterproof sheets.

Japanese Utility Model Publication No. 05-012027

An object of the present invention is to supply a liquid material containing a solvent or an adhesive at an appropriate supply amount by setting a desired supply amount to the overlapping portion of the waterproof sheets to which the liquid material is to be supplied. 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 (7) below.
(1) A waterproof sheet joining device used for laying a waterproof sheet on a floor surface as a frame using a liquid material containing a solvent or an adhesive,
a supply system for supplying the liquid material to the waterproof sheet;
a traveling system having wheels rotatably supported, and traveling along the forward direction together with the supply system by rotation of the wheels;
The liquid material is applied to an overlapping portion formed by overlapping a first waterproof sheet and a second waterproof sheet included in 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 are overlapped, the liquid material is supplied by a rotatably supported roller included in the running system. is configured to roll the overlapping portion supplied with from the front side of the first waterproof sheet,
The supply system includes a storage portion for storing the liquid material, an air tank filled with compressed air, a nozzle for discharging the liquid material to the overlapping portion, and a first flow path through which the liquid material passes. , and a second flow path through which the air passes, wherein the air tank, the reservoir, and the nozzle communicate with each other in this order through the second flow path, and The reservoir and the nozzle are arranged in communication with each other through the first flow path,
The compressed air is supplied from the air tank to the storage section through the second flow path, so that in the storage section, the liquid material is pushed out toward the first flow path by the air, and as a result, 1. A waterproof sheet bonding apparatus, wherein said liquid material is discharged from said nozzle to said overlapping portion via said first flow path.

(2) The above-described (1), wherein the second flow path is connected at its tip to the top of the reservoir, and the first flow path is connected at its base to the bottom of the reservoir. Tarpaulin bonding equipment.

(3) The supply system has a flow rate adjusting section that is connected to the first flow path and adjusts the flow rate of the liquid material passing through the first flow path, midway between the reservoir and the nozzle. The waterproof sheet joining apparatus according to (1) or (2) above.

(4) the supply system has an on-off valve connected to the first flow path and provided midway between the flow rate adjusting unit and the nozzle;
The waterproof sheet bonding apparatus according to (3) above, wherein the on-off valve can be opened and closed by operating a lever connected to the on-off valve via a wire.

(5) The supply system has a supply amount adjustment unit that is connected to the second flow path and adjusts the flow rate of the air that passes through the second flow path, midway between the air tank and the storage unit. The waterproof sheet joining apparatus according to any one of (1) to (4) above.

(6) The air tank is configured to be filled with the air using a compressor capable of supplying the compressed air prior to laying the waterproof sheet on the floor surface by the waterproof sheet joining device. The waterproof sheet joining device according to any one of the above (1) to (5).

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

According to the present invention, when a liquid material containing a solvent or an adhesive is supplied to the overlapping portion of the waterproof sheets using the waterproof sheet bonding apparatus, the supply amount of the liquid material to be supplied to the overlapping portion can be set as desired. can be set to the amount of Therefore, the liquid material can be supplied to the overlapping portion in an amount suitable for joining the waterproof sheets. Therefore, the operator can use the waterproof sheet joining apparatus to join the waterproof sheets with excellent accuracy at the overlapping portions of the waterproof sheets.

1 is a perspective view showing an embodiment of a waterproof sheet joining apparatus of the present invention; FIG. It is the side view seen from the arrow A direction in FIG. It is the front view seen from the arrow C direction in FIG. It is the top view seen from the arrow B direction in FIG. FIG. 2 is a schematic diagram showing the configuration of a supply system provided in the waterproof sheet bonding apparatus shown in FIG. 1; FIG. 2 is a partially enlarged side view showing an enlarged pressing portion provided in the waterproof sheet joining apparatus shown in FIG. 1; FIG. 3 is an exploded perspective view showing an example of a construction state of the waterproof sheet; FIG. 3 is an exploded perspective view showing an example of a construction state of the waterproof sheet; FIG. 8 is an exploded perspective view showing another configuration example of the construction state of the waterproof sheet shown in FIG. 7 ;

BEST MODE FOR CARRYING OUT THE INVENTION A waterproof sheet joining apparatus and a waterproof sheet joining method of the present invention will be described in detail below based on preferred embodiments shown in the accompanying drawings.

The waterproof sheet bonding apparatus of the present invention is a waterproof sheet bonding apparatus used when laying a waterproof sheet on a floor surface as a frame using a liquid material containing a solvent or an adhesive, a supply system for supplying a liquid material to the waterproof sheet; and a traveling system having wheels rotatably supported and traveling along the forward direction together with the supply system by rotation of the wheels, wherein the waterproof sheet By supplying the liquid material to the overlapping portion formed by overlapping the first waterproof sheet and the second waterproof sheet along the forward direction at the edges with the second waterproof sheet on the bottom side , the first waterproof sheet and the second waterproof sheet are joined, and the supply system supplies the liquid material to the overlapping portion where the first waterproof sheet and the second waterproof sheet overlap, The overlapping portion supplied with the liquid material is rolled from the front side of the first waterproof sheet by a rotatably supported roller included in the running system, and the supply system is configured to roll the liquid material. an air tank filled with compressed air; a nozzle for discharging the liquid material to the overlapped portion; a first channel through which the liquid material passes; The air tank, the storage section and the nozzle are connected in this order, the air tank and the storage section are communicated via the second flow path, and the storage section and the nozzle are communicated in this order. The compressed air is supplied from the air tank to the storage section via the second flow path, and is arranged in communication with the first flow path. The air pushes the liquid material toward the first flow path, and as a result, the liquid material is discharged from the nozzle to the overlapping portion through the first flow path.

By configuring the waterproof sheet bonding apparatus to have such a configuration, when supplying a liquid material containing a solvent or an adhesive to the overlapping portion of the waterproof sheets, the supply amount of the liquid material to be supplied to the overlapping portion can be reduced. , can be set to any desired amount. Therefore, the liquid material can be supplied to the overlapping portion in an amount suitable for joining the waterproof sheets. Therefore, the operator can use the waterproof sheet joining apparatus to join the waterproof sheets with excellent accuracy at the overlapping portions of the waterproof sheets. The waterproof sheet joining apparatus will be described in detail below.

<< Waterproof sheet bonding equipment >>
1 is a perspective view showing an embodiment of the waterproof sheet joining apparatus of the present invention, FIG. 2 is a side view seen from the direction of arrow A in FIG. 1, and FIG. 3 is seen from the direction of arrow C in FIG. 4 is a plan view seen from the direction of arrow B in FIG. 1, FIG. 5 is a schematic diagram showing the configuration of the supply system provided in the waterproof sheet bonding apparatus shown in FIG. 1, and FIG. FIG. 7 is an exploded perspective view showing an example of the construction state of the waterproof sheet, and FIG. 8 is an exploded view showing an example of the construction state of the waterproof sheet. FIG. 9 is an exploded perspective view showing another configuration example of the construction state of the waterproof sheet shown in FIG.

In the following, for convenience of explanation, the upper side in FIGS. 1 to 3 and FIGS. ’ says. 1 and 7 to 9, the left side in FIGS. 2 and 5 to 6, the front side in FIG. 3, and the lower side in FIG. Say. 1 and 7 to 9, the right side in FIGS. 2 and 5 to 6, the back side in FIG. 3, and the upper side in FIG. To tell. Also, as shown in FIGS. 1 to 6, the three mutually orthogonal axes are the x-axis, the y-axis and the z-axis. Also, the xy plane including the x-axis and the y-axis is horizontal, and the z-axis is vertical.

A waterproof sheet bonding apparatus 1 (hereinafter also simply referred to as a "bonding apparatus") shown in FIG. In this embodiment, a case of welding by welding using a solvent Q will be described.

In addition, the waterproof sheet 100 is laid (constructed) on the skeleton, but the skeleton is not particularly limited, and examples thereof include a rooftop and a veranda. On the other hand, the waterproof sheet 100 is laid (constructed) using the joining device 1 .

By the way, using the joining device 1, the waterproof sheets 100 are joined to each other at the overlapping portions 101 where the edges of the waterproof sheets 100 overlap, and the laying mode of the waterproof sheets 100 laid on the floor surface of the frame is not particularly limited. There are modes shown in FIGS. 7 and 8. FIG.

In the embodiment shown in FIG. 7, a band-shaped waterproof sheet 100 (hereinafter sometimes referred to as "waterproof sheet 100A") and two waterproof sheets 100 (hereinafter referred to as "waterproof sheet 100B") wider than the waterproof sheet 100A. (sometimes). The waterproof sheets 100B are laid adjacent to each other with a gap on the floor surface of the frame. The waterproof sheets 100A are laid from above so as to fill the space between the waterproof sheets 100B. The waterproof sheet 100A and each waterproof sheet 100B form an overlapped portion 101 by overlapping the edges thereof, and the overlapped portion 101 serves as a joint margin and is joined using the joining device 1. , the 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. 7, the waterproof sheet 100B can be replaced with a heat insulating panel 150B, that is, a so-called "vinyl chloride steel plate" or the like. Specifically, as shown in FIG. 9, two adjacent heat insulating panels 150B are arranged so that their edges face each other without any space between them. fixed at 160. Then, the fireproof sheet 155 is joined so as to cover the boundary 151 formed by butting the edges of the two heat insulating panels 150B, and further includes the region of the boundary 151 where the fireproof sheet 155 is joined. 100 A of waterproof sheets are joined so that it may carry out. The joining apparatus 1 is used to join the waterproof sheet 100A to the boundary 151 between the heat insulating panels 150B via the fireproof sheet 155. By joining the waterproof sheet 100A, the heat insulating panel 150B is laid on the purlin 160. Waterproofing is applied to the floor surface.

Here, the heat insulation panel 150B has an inner layer composed of various steel plates (metal plates) such as Galvalume steel plate (registered trademark) and stainless steel plate, and a substrate made of a heat insulation layer, and the outermost layer has waterproofness like the waterproof sheet 100B. It consists of a waterproof layer (PVC layer) made up of a sheet (waterproof 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. 9, the joining device 1 is used for joining the waterproof layer formed on the substrate and the waterproof sheet 100A.

It should be noted that either one of the two heat insulating panels 150B shown in FIG. 9 can be configured with the waterproof sheet 100B depending on the configuration of the purlin 160 and the like.

In addition, in the embodiment shown in FIG. 7, the two waterproof sheets 100B are arranged side by side with a gap between the two waterproof sheets 100B. 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 face each other without opening between them.

In the embodiment shown in FIG. 8, the waterproof sheets 100B are laid so as to be parallel to the floor surface of the building (hereinafter, the upper one is the "waterproof sheet 100BA", and the lower one is the "waterproof sheet 100BB") are overlapped at the edges to form an overlapping portion 101 (overlapping portion). Then, the overlapping portion 101 serves as a margin for joining, and the waterproof sheet 100 is laid on the floor surface 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 the embodiment shown in FIG. 8, the lower waterproof sheet 100BB of the two waterproof sheets 100B may be replaced with the heat insulating panel 150B described above.

Moreover, in this embodiment, as an example, a case where the bonding apparatus 1 is used for bonding in the mode shown in FIG. 8 will be described.

The material constituting the waterproof sheet 100 laid on the floor is not particularly limited, but examples thereof include vinyl chloride resins such as polyvinyl chloride, polyolefin resins, ethylene vinyl acetate copolymers, and the like. One or a combination of two or more of these can be used, but polyvinyl chloride is preferred. Polyvinyl chloride is excellent in solvent weldability. Therefore, by joining the waterproof sheets 100 by welding with the solvent Q supplied from the joining device 1, the adhesion between the waterproof sheets 100 can be improved.

The joining device 1 is used for laying the waterproof sheet 100 on the floor surface of the frame as described above. As shown in FIG. and a traveling system 9 that travels together with the supply system 10 . The configuration of each part provided in the bonding apparatus 1 will be described below.

The traveling system 9 includes a vehicle body 91 that travels along with the supply system 10, a pressing section 7 having a roller 92A rotatably supported at the bottom of the vehicle body 91, a driving section 6 that drives the vehicle body 91, and a It has a supported and fixed handle 93 .

The vehicle body 91 includes a frame 94 and four wheels 92B rotatably supported on the lower portion of the vehicle body 91 (frame 94).

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

As shown in FIGS. 1 to 4, on the frame 94 (top plate 941), two pairs of wheels 92B are arranged on the four corners of the top plate 941 so that the two pairs of wheels 92B face each other. It is Each wheel 92B is rotatably supported by a top plate 941 . By rotating each wheel 92B, the welding apparatus 1 can travel together with the supply system 10. As shown in FIG. That is, by rotating each wheel 92B in the +x-axis direction by driving the drive unit 6, which will be described later, the vehicle body 91, that is, the joining device 1 moves forward in the +x-axis direction and rotates each wheel 92B in the −x-axis direction. As a result, the vehicle body 91 moves backward in the -x-axis direction. When the joint device 1 moves forward in the +x-axis direction and reverses in the -x-axis direction, the opposing wheels 92B each move along the paired wheel travel lines Lk along the x-axis direction (advance direction). run. More specifically, of the wheels 92B facing each other in the y-axis direction, the wheel 92B located on the +y-axis direction side runs on the wheel running line Lk1, and the wheel 92B located on the -y-axis direction side runs on the wheel running line Lk2. run.

As shown in FIGS. 1 to 4 and 6, in the present embodiment, the pressing portion 7 is positioned between the wheels 92B facing each other in the y-axis direction, that is, between the paired wheel running lines Lk along the x-axis direction. At a position between them, a total of five of them are connected to the vehicle body 91 side by side along the x-axis direction.

Each pressing portion 7 includes two side plates 71 arranged in the y-axis direction and facing each other with a gap therebetween, a roller 92A disposed between the two side plates 71, and two side plates It has two connecting members 72 each connected to 71 .

In the pressing portion 7, the roller 92A is rotatably supported between the two side plates 71 via an axle. Two connecting members 72 are connected to the top plate 941 at the upper ends of the two side plates 71, respectively, so that the roller 92A is rotatably supported with respect to the vehicle body 91 (the top plate 941). .

The width of the roller 92A is set to be large enough to cover the width of the overlapping portion 101. When the vehicle body 91, that is, the joining device 1 travels, the wheel 92B rotates and the roller 92A also rotates. Therefore, for example, when the vehicle body 91 is advanced in the +x-axis direction by driving the drive unit 6, which will be described later, each wheel 92B rotates in the +x-axis direction, and the roller 92A similarly rotates in the +x-axis direction. do. Further, when the vehicle body 91 is reversed in the -x-axis direction, each wheel 92B rotates in the -x-axis direction, and the roller 92A similarly rotates in the -x-axis direction. When the vehicle body 91 moves forward in the +x-axis direction and reverses in the −x-axis direction, the rollers 92A move in the x-axis direction between the paired wheel running lines Lk on which the opposing wheels 92B run. It runs along the roller running line Ls along. The position where the roller 92A travels corresponds to the overlapping portion 101 formed by overlapping the waterproof sheet 100BB and the waterproof sheet 100BA at the edges, and the solvent Q is supplied from the nozzle 5 provided in the supply system 10 described later. After that, the waterproof sheet 100BA and the waterproof sheet 100BB can be joined by rolling the overlapping portion 101 from the front side of the waterproof sheet 100BA with a roller 92A.

Further, the roller 92A having such a configuration is arranged between the two side plates 71 in the pressing portion 7, and is connected to the frame 94 ( It is connected to the top plate 941).

The connecting member 72 has a coil shape (spring shape) with a shaft portion 74 that is slidably connected to the top plate 941 in the vertical direction. and a coil portion 73 which is formed. The shaft portion 74 is connected to the top plate 941 while resisting the spring force of the coil portion 73 .

The connecting member 72 having such a configuration allows the pressing portion 7 having the roller 92A to swing vertically (z-axis direction) with respect to the top plate 941, and downward (-z-axis direction). It can be biased (see Figures 2, 3 and 6).

Therefore, the pressing portion 7, that is, the roller 92A is urged downward (-z-axis direction) so as to be able to swing in the vertical direction (z-axis direction) with respect to the top plate 941 (vehicle body 91). Therefore, when the waterproof sheet 100BA and the waterproof sheet 100BB are joined by rolling the waterproof sheet 100BA from the front side with the roller 92A provided in the pressing part 7, the coil part 73 with different biasing force is inserted into the shaft part 74. Thus, the magnitude of the load applied to the waterproof sheet 100BA can be set to a desired magnitude.

Further, when the waterproof sheet 100BA and the waterproof sheet 100BB are joined together, even if the floor on which the waterproof sheet 100 is laid has unevenness, that is, a step, the roller 92A can follow the shape of the unevenness. can be made Therefore, the roller 92A overcomes the unevenness, and the waterproof sheet 100BA and the waterproof sheet 100BB can be reliably joined even in the waterproof sheet 100 corresponding to the position where the unevenness is formed on the floor.

Furthermore, as shown in FIGS. 2 and 6, the pressing portions 7 each having one roller 92A are independently connected to the vehicle body 91 along the x-axis direction. In this way, one roller 92A that can follow the shape of the unevenness is provided corresponding to one pressing portion 7, and a plurality of (five in this embodiment) pressing portions 7 are provided independently. It is connected to the vehicle body 91 along the x-axis direction. Therefore, each roller 92A can independently correspond to and follow the uneven shape without affecting the rollers 92A adjacent in the x-axis direction. Therefore, the waterproof sheet 100BA and the waterproof sheet 100BB can be joined with higher accuracy.

Note that, in the configuration shown in FIG. 5 along, but may be more or less than 5 and is not limited to that number and may be 1. However, by providing a plurality of waterproof sheets 100BA and 100BB as in this embodiment, the waterproof sheets 100BA and 100BB can be joined more reliably.

The drive section 6 is provided in connection with the vehicle body 91 and has a drive source 60 and a force transmission section 80. The force generated by the drive source 60 is transmitted to the vehicle body 91 by the force transmission section 80. By doing so, the vehicle body 91 is driven. That is, by driving the vehicle body 91 by the operation of the drive unit 6, the joining device 1 is moved forward along the +x-axis direction or backward along the −x-axis direction.

The drive source 60 generates a force (power) for driving the vehicle body 91, and may have any configuration as long as it can generate this power. For example, an engine, a motor, or the like may be used. However, in this embodiment, as shown in FIGS. 1 to 4, an electric screwdriver is detachably mounted on a vehicle body 91 as a machine tool having a motor.

As shown in FIGS. 1 to 4, the drive source 60 (electric driver) is provided with a main body 61, a motor housed in the main body 61, and a motor protruding from the main body 61. and a chuck 62 that rotates.

The body portion 61 includes a grip portion 63, which includes a power switch for switching the power on and off, a rotation switch for switching the rotation direction of the motor and thus the chuck 62, and a lever for switching the speed of the motor and thus the chuck 62. (speed adjustment switch) are provided respectively.

In addition, the body portion 61 has a built-in motor powered by a battery that is detachably attached to the body portion 61, and the motor is driven by turning on the power switch. , the motor can be stopped by turning off the power switch. Further, by operating the rotary switch, the direction of rotation of the motor can be switched between forward rotation and reverse rotation. Furthermore, the speed at which the motor rotates can be adjusted by operating the lever. That is, by operating various switches, the motor can be rotated in a desired rotation direction and at a desired speed.

The chuck 62 is provided so as to project from the body portion 61, and is configured to rotate about the same axis as the motor by being connected to a rotation shaft of a motor built in the body portion 61.

A bit 81 included in the force transmission section 80 is detachably attached to the chuck 62 , so that the rotational force (force) generated by the rotation of the motor is transmitted to the force transmission section 80 .

In the drive source 60 (electric driver) having such a configuration, when the power switch is turned on, the rotating shaft of the motor rotates, causing the chuck 62 connected to the rotating shaft to move around the same axis as the motor. Since it rotates, the bit 81 of the force transmission part 80 attached to the chuck 62 also rotates around the same axis as the motor.

As shown in FIG. 3 and the like, the force transmission part 80 has a bevel gear at the tip of the shaft. A bevel gear 82 that converts the rotational motion of the vertical axis into a horizontal axis, a pulley 83 that is concentrically connected and fixed to the bevel gear 82, and two wheels 92B that are respectively arranged at the two front corners of the frame 94. It has one axle 86 provided correspondingly, a pulley 85 concentrically connected and fixed in the middle of the wheel 92B, and a timing belt 84 wound around the pulleys 83 and 85, A bit 81, a bevel gear 82, a pulley 83, a timing belt 84, a pulley 85 and an axle 86 are arranged in this order from the chuck 62 side to the wheel 92B side.

As a result, the bit 81 attached to the chuck 62 of the drive source 60 (electric driver) and the wheel 92B of the vehicle body 91 are connected via bevel gears, pulleys, timing belts and axles. ing. Note that the number of bevel gears, pulleys, and timing belts that the force transmission section 80 has is not limited to the number in this embodiment.

When the power switch of the drive source 60 (electric driver) is turned on, the bit 81 attached to the chuck 62 is rotated by the rotation of the chuck 62 as described above. The bit 81 causes the bevel gear provided in the bit 81 to rotate with rotational motion about the vertical axis (see FIG. 3). Since the bevel gear of the bit 81 meshes with the bevel gear 82, the rotational force of the bit 81 rotating by the rotational motion of the vertical axis is applied to the bevel gear 82. converted to and transmitted. Since the pulley 83 is concentrically connected to the bevel gear 82 , the pulley 83 rotates along with the bevel gear 82 in a horizontal rotational motion. Therefore, the rotational force of the pulley 83 is transmitted to the pulley 85 via the timing belt 84 while maintaining the rotational motion of the horizontal axis. Since the wheel 92B is concentrically connected to the pulley 85 via the axle 86, the wheel 92B, like the pulley 85, rotates with the rotational movement of the horizontal axis.

In this way, the rotational force (power) of the motor generated in the drive source 60 (electric driver) is transmitted to the wheel 92B via the force transmission section 80 as a rotational force that rotates in rotational motion about the horizontal axis. be. Therefore, by switching the rotation switch provided in the drive source 60 (electric driver), the rotation direction of the wheel 92B can be arbitrarily selected from forward rotation and reverse rotation. Running can selectively move forward or backward. Furthermore, by switching the lever (speed adjustment switch) provided in the drive source 60 (electric driver), the speed at which the wheel 92B rotates can be adjusted. be able to.

As described above, the welding device 1 does not move forward manually by the operator, but is driven by the drive unit 6 to move forward in the +x-axis direction. With such a configuration, the welding apparatus 1 can be stably run (advance) while maintaining the set speed. Therefore, the waterproof sheet 100BA and the waterproof sheet 100BB can be joined with excellent accuracy by rolling the waterproof sheet 100BA with the roller 92A provided in the pressing portion 7 .

Further, in this embodiment, since an electric screwdriver is used as the drive source 60 without using an engine, a motor, or the like, the electric screwdriver can be detached from the welding apparatus 1, and various machining bits can be used instead of the bit 81. By attaching a (processing tool) to the chuck 62, the electric screwdriver can be used for various machining operations. Furthermore, since the existing electric screwdriver is diverted as the drive source 60 provided in the joining device 1, the joining device 1 can be manufactured at low cost.

The handlebars 93 are supported and fixed to two poles 96 projecting upward from two rear corners of a frame 94 of the vehicle body 91 . An operator who performs the work of joining the waterproof sheet 100 grips the handle 93 and drives the drive unit 6 to move the joining device 1 forward in the +x-axis direction or move the joining device 1 to the -x direction. It can be operated to move backward in the axial direction.

Further, the handle 93 is provided with a lever 44 included in the supply system 10 described below. By operating the lever 44 by the operator, the bonding device 1 is advanced in the +x-axis direction, and the solvent Q is supplied to the overlapping portion 101 when the waterproof sheets 100B are bonded together at the overlapping portion 101. can be done.

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

The supply system 10, as shown in FIG. A nozzle 5 that supplies (discharges) the solvent Q that has passed through the flow path 31 to the overlapping portion 101 where the waterproof sheets 100B overlap each other, a flow rate adjustment section 41 that adjusts the flow rate of the solvent Q that is discharged from the nozzle 5, and a flow path An on-off valve 43 that opens and closes the passage of the solvent Q in 31, an air tank 48 that sends out the solvent Q in the storage part 2 toward the nozzle 5 side through the flow path 31, and the storage part 2 and the air tank 48. It has a flow path 32 through which the air supplied from the air tank 48 to the storage section 2 passes, and a supply amount adjustment section 47 for adjusting the supply amount of the air supplied to the storage section 2. The air tank 48, the supply amount adjustment section 47, Storage portion 2, flow rate adjustment portion 41, opening/closing valve 43, and nozzle 5 are communicated in this order, and air tank 48, supply amount adjustment portion 47, and storage portion 2 are communicated via channel 32, and storage portion 2 and flow rate adjustment are communicated. The portion 41 , the on-off valve 43 and the nozzle 5 are arranged in communication with each other through the flow path 31 .

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

In this embodiment, as shown in FIG. 1, the storage section 2 is composed of a cylindrical tank (solvent tank).

The reservoir 2 is fixed above an on-off valve 43, which will be described later, arranged on the top plate 941 via the flow regulating part 41 and the flow path 31, and is thereby arranged on the vehicle body 91. It is

The reservoir 2 stores a solvent Q which is supplied to the overlapped portion 101 and used for welding the waterproof sheets 100B (the waterproof sheets 100BA and 100BB) at the overlapped 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. and the like, and one of them or a combination of two or more of them can be used, but tetrahydrofuran is particularly preferred. 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.

One end (base end) of a channel 31 communicating with the nozzle 5 is connected to the reservoir 2 at its bottom (lower end), and the other end of a channel 32 communicating with the air tank 48 at its top (upper end). The solvent Q stored in the storage section 2 is supplied to the nozzle 5 via the flow path 31 by supplying air from the air tank 48 to the storage section 2 via the flow path 32. is configured as

The flow path 31 (first flow path) is liquid-tightly connected to the bottom portion of the storage portion 2, the flow rate adjustment portion 41, the on-off valve 43, and the nozzle 5, thereby being arranged on the vehicle body 91. .

One end and the other end of the channel 31 are connected to the reservoir 2 and the nozzle 5 , respectively, so that the solvent Q stored in the reservoir 2 is supplied to the nozzle 5 .

Further, the flow path 31 can be partially or wholly configured by a metal or resin pipe through which the solvent Q passes.

In addition, the flow path 31 may be formed by connecting a plurality of pipes via joints, or may be formed by a single pipe. Also, the pipe may be bent or curved at one or more points in the middle of 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 side opposite to the reservoir 2 , and is thereby arranged on the vehicle body 91 .

In this embodiment, the nozzle 5 is composed of a flat metal hollow body, and communicates with the flow path 31 on the base end side thereof, and as shown in FIG. It has a discharge port 51 that opens rearward, that is, toward the -x-axis direction, and discharges the solvent Q that has passed through the flow path 31 to the overlapping portion 101 of the waterproof sheets 100B. Then, the solvent Q discharged from the discharge port 51 is used for joining the waterproof sheets 100B together, that is, the waterproof sheets 100BA and 100BB. Note that the nozzle 5 protrudes in the -y direction in parallel with the xy plane.
Moreover, the nozzle 5 may be provided with a reinforcing material for reinforcing the nozzle 5 .

Furthermore, the solvent Q discharged from the discharge port 51 of the nozzle 5 can be adjusted by appropriately setting the shape of the discharge port 51, the air supply amount in the supply amount adjustment unit 47, the flow rate of the solvent Q in the flow amount adjustment unit 41, and the like. It may be in any form such as waterfall, droplet, or mist.

As shown in FIGS. 1 and 5, when the solvent Q is discharged from the nozzle 5, from one side in the width direction of the waterproof sheet 100B, that is, from the +y-axis direction side, 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 this nozzle 5, the solvent Q is supplied to the overlapping portion 101 between the waterproof sheets 100B.

The number of nozzles 5 installed in the supply system 10 is one in the present embodiment, but is not limited to this, and may be, for example, two or more.

The flow rate adjusting unit 41 is fixed above an on-off valve 43 , which will be described later, arranged on the top plate 941 via the flow path 31 , thereby being arranged on the vehicle body 91 . Further, the flow rate adjusting portion 41 is provided in the middle between the reservoir portion 2 and the nozzle 5 so as to be connected to the flow path 31 .

This flow rate adjusting unit 41 is configured by, for example, a variable throttle valve. Accordingly, the flow rate adjusting unit 41 can steplessly adjust the flow rate of the solvent Q passing through the flow path 31 by changing the throttle opening. With such a flow rate adjusting section 41, the solvent Q can be supplied from the nozzle 5 in an appropriate amount, neither too much nor too little.

The flow rate adjusting unit 41 may be configured to manually adjust the flow rate of the solvent Q, or may automatically adjust the flow rate of the solvent Q based on various conditions such as the viscosity of the solvent Q. may be configured to do so.

In addition, in this embodiment, a drain 46 is provided between the storage section 2 and the flow rate adjusting section 41 so as to be connected to the flow path 31 . As a result, if bubbles enter the channel 31 , the bubbles can be removed through the drain 46 . Further, when replacing the solvent Q, the unnecessary solvent Q stored in the storage section 2 can be removed from the drain 46 .

The on-off valve 43 is fixed on the top plate 941 and thus arranged on the vehicle body 91 . In addition, the on-off valve 43 is connected to the flow path 31 and provided midway between the flow rate adjusting portion 41 and the nozzle 5 .

The opening/closing valve 43 is composed of, for example, a throttle valve, and as shown in FIG. 43 can be opened and closed. As a result, the supply of the solvent Q from the nozzle 5 to the overlapped portion 101 can be switched on/off by the operation of the lever 44 by the operator who performs the bonding work of the waterproof sheet 100 .

The air tank 48 is fixed on the top plate 941 and thus arranged on the vehicle body 91 .

The air tank 48 is a cylindrical tank, and is configured to be connected to a compressor (not shown) capable of supplying air. It is charged with mechanically compressed air (compressed air). This compressor may be either automatic or manual. Alternatively, if the compressor is manually operated and its weight is light, the compressor may be built in the air tank 48 .

One end (base end) of a flow path 32 that communicates with the top of the reservoir 2 is connected to the air tank 48, and by supplying compressed air to the reservoir 2 through the flow path 32, The solvent Q stored in the storage part 2 can be pushed out from the storage part 2 through the channel 31 communicating with the bottom part of the storage part 2 . Therefore, the solvent Q stored in the reservoir 2 can be discharged from the nozzle 5 via the flow path 31 by supplying air from the air tank 48 to the reservoir 2 via the flow path 32 . In this way, the air tank 48 is charged (filled) with compressed air, and the solvent Q stored in the reservoir 2 is discharged from the nozzle 5 using the compressive force of the air charged in the air tank 48 . It has a configuration that Therefore, the reservoir is arranged like a bonding device that employs a device configuration in which the solvent Q is discharged from the nozzle 5 by the siphon principle using the height difference between the reservoir (tank) and the nozzle. There are no restrictions on the position to be used. Therefore, according to the present invention, the storing section 2 can be arranged at any position on the frame 94 (the top plate 941), so that the range of design when manufacturing the joining device 1 is widened.

The flow path 32 (second flow path) is airtightly connected to the top portion of the storage section 2 , the supply amount adjustment section 47 and the air tank 48 , and thus arranged on the vehicle body 91 .

One end and the other end of the flow path 32 are connected to the air tank 48 and the reservoir 2, respectively, so that the compressed air in the air tank 48 is supplied to the reservoir 2. .

Also, the flow path 32 can be configured partially or wholly by a pipe made of metal or resin through which air passes.

The flow path 32, like the flow path 31, may be formed by connecting a plurality of pipes via joints, or may be composed of a single pipe.

The supply amount adjusting unit 47 is fixed on the top plate 941 and thus arranged on the vehicle body 91 . Further, the supply amount adjusting portion 47 is provided in the middle of the storage portion 2 and the air tank 48 so as to be connected to the flow path 32 .

The supply amount adjusting section 47 is configured by, for example, a variable throttle valve. Accordingly, the supply amount adjusting section 47 can steplessly adjust the flow rate of the air passing through the flow path 32 by changing the opening degree of the throttle. With such a supply amount adjusting portion 47, an appropriate amount of air can be supplied from the air tank 48 to the storage portion 2 without excess or deficiency.

The supply amount adjustment unit 47 may be configured to adjust the supply amount of air by manual operation, or automatically adjust the amount of air based on various conditions such as the viscosity of the solvent Q to be pushed out by air. It may be configured to adjust the amount of supply.

Either one of a check valve and a manual valve may be provided in connection with the flow path 32 between the storage section 2 and the supply amount adjustment section 47 . By providing the check valve, it is possible to prevent the solvent Q from flowing back from the reservoir 2 to the air tank 48 . Further, by providing the manual valve, even if the operator unintentionally operates the lever 44 when the welding apparatus 1 is stopped, the solvent Q can be reliably prevented from being discharged from the nozzle 5 .

In the supply system 10 having such a configuration, prior to the joining of the waterproof sheets 100B by the joining device 1, the air tank 48 is filled with compressed air using a compressor. Further, the amount of air supplied from the air tank 48 to the reservoir 2 is adjusted by the supply amount adjuster 47, and the flow rate of the solvent Q from the reservoir 2 to the nozzle 5 is adjusted by the flow rate adjuster 41. , the operator operates the lever 44 to open the on-off valve 43, the solvent Q stored in the storage part 2 is adjusted to be discharged from the nozzle 5 at an appropriate supply amount. That is, according to the supply system 10 having such a configuration, the supply amount of the solvent Q discharged from the nozzle 5 can be set to a desired amount by the adjustment by the supply amount adjustment section 47 and the flow rate adjustment section 41. This supply amount can be reliably set to an appropriate amount for joining the waterproof sheets 100B together. Therefore, in order to ensure that the waterproof sheet 100B is melted at the overlapping portion 101, it is possible to accurately suppress or prevent a large amount of wasteful amount of the solvent Q from being supplied to the overlapping portion 101. is environmentally desirable.

When the waterproof sheets 100B are joined together by the joining device 1, the operator operates the lever 44 to open the on-off valve 43 while advancing the joining device 1 along the +x-axis direction. The storage part 2 and the nozzle 5 are communicated with each other through flow paths 31 and 32 (see FIG. 5). At this time, since the air tank 48 is filled with compressed air, the supply amount of this air is adjusted to an appropriate amount by the supply amount adjustment section 47 through the flow path 32, and the storage section 2 is filled with the air. From the top, it is fed into the interior. By supplying air to the reservoir 2, the solvent Q stored in the reservoir 2 is pushed out to the outside of the reservoir 2, that is, to the side of the channel 31 connected to the bottom of the reservoir 2. As a result, the solvent Q adjusted to an appropriate flow rate by the flow rate adjusting unit 41 is discharged from the nozzle 5 through the flow path 31, and the waterproof sheet 100B can be melted at the overlapping portion 101.

The nozzle 5 is located forward of the rollers 92A in the traveling direction of the vehicle body 91 . Therefore, after the waterproof sheet 100B is melted at the overlapped portion 101, that is, after the solvent Q is supplied from the supply system 10 through the nozzle 5, the waterproof sheets 100B and the running system 9 are at the overlapped portion 101. Rolling pressure is applied from the front side by the provided roller 92A (see FIGS. 1, 2, etc.).

Due to this rolling compaction, the waterproof sheets 100B melted by the supply of the solvent Q are joined together at the overlapped portion 101 . As a result, the 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 using the bonding apparatus 1 as described above and rolling the waterproof sheet 100B by the roller 92A after the supply of the solvent Q, the bonding apparatus 1 can be used to join the waterproof sheet 100, and the joining process (waterproof sheet joining method) using the joining apparatus 1 is constituted by the supply of the solvent Q and the rolling compaction of the waterproof sheet 100B. After the joining process is finished, the nozzle 5 is removed from between the waterproof sheets 100B.

In the joining of the waterproof sheets 100B at the overlapping 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 part 2 mounted on the vehicle body 91 runs along the roller running line Ls. run on a different wheel running line Lk parallel to the roller running 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. The connecting member 72 connects the pressing portion 7 to the vehicle body 91 (the top plate 941). , so that it can swing vertically (z-axis direction) and is biased downward (-z-axis direction). Thereby, the magnitude of the load when the waterproof sheet 100BA is rolled from the front side by the roller 92A provided in the pressing portion 7 can be set to a desired magnitude. Therefore, the load applied to the waterproof sheet 100B by the roller 92A provided in the pressing section 7 is A [N], and the load applied to the waterproof sheet 100B by the supply system 10 provided with the storage section 2 mounted on the vehicle body 91 is B [N]. It is constructed so as to satisfy the relationship A<B.

Therefore, in the overlapping portion 101, when the waterproof sheet 100BA is rolled from the front side by the roller 92A, for example, even if the full amount of the solvent Q is stored in the storage portion 2 and the dead weight of the vehicle body 91 increases, the pressing portion A roller 92A provided in 7 reliably prevents a large load from being applied to the overlapping portion 101, and the load A applied to the waterproof sheet 100B by the roller 92A is set to an appropriate size for joining the waterproof sheets 100B. can do. Therefore, when the waterproof sheets 100B are joined to each other in the overlapping portion 101, the waterproof sheets 100B located in the overlapping portion 101 are appropriately suppressed or prevented from being wrinkled, and the waterproof sheets 100B are joined with excellent accuracy. be able to.

In the present embodiment, the case where the supply system 10 has both the flow rate adjustment unit 41 and the supply amount adjustment unit 47 has been described, but the present invention is not limited to this case, and the supply system 10 includes the flow rate adjustment unit Either one of 41 and supply amount adjusting unit 47 may be omitted. However, by configuring the supply system 10 to have both the flow rate adjustment unit 41 and the supply amount adjustment unit 47 as in the present embodiment, the ejection amount of the solvent Q ejected from the nozzle 5 can be improved. It is possible to adjust with precision.

As described above, the waterproof sheet joining apparatus and the waterproof sheet joining method of the present invention have been described with reference to the illustrated embodiments, but the present invention is not limited thereto. Moreover, each part constituting the waterproof sheet joining apparatus can be replaced with any structure capable of exhibiting the same function. Moreover, arbitrary components may be added.

For example, the bonding apparatus 1 stores the solvent Q as the liquid material in the storage part 2, thereby supplying the solvent Q between the waterproof sheets 100B from the nozzle 5. However, instead of the solvent Q, the liquid material Alternatively, an adhesive may be supplied between the waterproof sheets 100B to bond the waterproof sheets 100B together.

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

1 Waterproof sheet joining device 2 Storage unit 5 Nozzle 6 Driving unit 7 Pressing unit 9 Running system 10 Supply system 31 Flow path 32 Flow path 41 Flow rate adjusting unit 43 On-off valve 44 Lever 45 Wire 46 Drain 47 Supply amount adjusting unit 48 Air tank 51 Discharge Outlet 60 Drive source 61 Main body 62 Chuck 63 Grasping part 71 Side plate 72 Connecting member 73 Coil part 74 Shaft part 80 Force transmission part 81 Bit 82 Bevel gear 83 Pulley 84 Timing belt 85 Pulley 86 Axle 91 Car body 92A Roller 92B Wheel 93 Handle 94 Frame 96 Pole 100 Waterproof sheet 100A Waterproof sheet 100B Waterproof sheet 100BA Waterproof sheet 100BB Waterproof sheet 101 Overlapping portion 150B Insulation panel 151 Boundary portion 155 Fireproof sheet 160 Purlin 941 Top plate A Arrow B Arrow C Arrow Lk Wheel running line Lk1 Wheel running line Lk2 Wheel running line Ls Roller running line Q Solvent

Claims (7)

A waterproof sheet joining device used when laying a waterproof sheet on a floor surface as a building frame using a liquid material containing a solvent or an adhesive,
a supply system for supplying the liquid material to the waterproof sheet;
a traveling system having wheels rotatably supported, and traveling along the forward direction together with the supply system by rotation of the wheels;
The liquid material is applied to an overlapping portion formed by overlapping a first waterproof sheet and a second waterproof sheet included in 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 are overlapped, the liquid material is supplied by a rotatably supported roller included in the running system. is configured to roll the overlapping portion supplied with from the front side of the first waterproof sheet,
The supply system includes a storage portion for storing the liquid material, an air tank filled with compressed air, a nozzle for discharging the liquid material to the overlapping portion, and a first flow path through which the liquid material passes. , and a second flow path through which the air passes, wherein the air tank, the reservoir, and the nozzle communicate with each other in this order through the second flow path, and The reservoir and the nozzle are arranged in communication with each other through the first flow path,
The compressed air is supplied from the air tank to the storage section through the second flow path, so that in the storage section, the liquid material is pushed out toward the first flow path by the air, and as a result, 1. A waterproof sheet bonding apparatus, wherein said liquid material is discharged from said nozzle to said overlapping portion via said first flow path. 2. The apparatus for joining waterproof sheets according to claim 1, wherein the tip of the second flow path is connected to the top of the reservoir, and the base of the first flow path is connected to the bottom of the reservoir. . 2. The supply system has a flow rate adjusting section connected to the first flow path midway between the storage section and the nozzle for adjusting the flow rate of the liquid material passing through the first flow path. 3. The apparatus for joining waterproof sheets according to 2 above. The supply system has an on-off valve connected to the first flow path and provided midway between the flow rate adjusting unit and the nozzle,
4. The apparatus for joining waterproof sheets according to claim 3, wherein the on-off valve can be opened and closed by operating a lever connected to the on-off valve via a wire. 2. The supply system has a supply amount adjusting unit connected to the second flow path midway between the air tank and the reservoir for adjusting the flow rate of the air passing through the second flow path. 5. The waterproof sheet joining device according to any one of items 1 to 4. The air tank is configured to be filled with the air using a compressor capable of supplying the compressed air prior to laying the waterproof sheet on the floor surface by the waterproof sheet joining device. 6. The waterproof sheet joining device according to any one of 1 to 5. A waterproof sheet bonding method, comprising a bonding step of bonding the waterproof sheet by using the waterproof sheet bonding apparatus according to any one of claims 1 to 6.

Images