JP2001040614A - Rolling vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a rolling vehicle which can easily switch among a road sprinkling function, a lift pumping function, and an other vehicle water feeding function, and facilitates pouring of priming of a sprinkling pump. SOLUTION: There is provided a rolling vehicle comprising a road sprinkling tank 3 which stores water, road sprinkling water distribution conduits 4 (4a to 4h), a road sprinkling pump 5 arranged across the road sprinkling water distribution conduit 4, and a plurality of valves (road sprinkling valves 6, 7, 29, and an other vehicle feeding valve 8). The rolling vehicle has a road sprinkling apparatus 2 mounted thereon, which switches among a road sprinkling function, i.e., a function of sprinkling a road surface, a lift pumping function, i.e., a function of pumping water, and an other vehicle feeding function, i.e., a function of feeding water to the other vehicles, by operating the road sprinkling valves 6, 7, 29, and the other vehicle feeding valve 8. The road sprinkling valves 6, 7, 29 and the other vehicle feeding valve 8 are each formed of an electric motor valve. Further, by driving a tire sprinkling pump 23 of a tire sprinkling apparatus 21, priming is poured into the road sprinkling pump 5.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a compacted vehicle equipped with a road surface watering device having a road surface watering function for spraying water onto a road surface, a water pumping function for pumping water, and a vehicle water supply function for supplying water to another vehicle. It is about.

[0002]

2. Description of the Related Art There is a self-propelled tire roller as a compacted vehicle used for compaction of an asphalt road or the like. The tire roller compacts the road surface by mounting a plurality of tires on the front and rear of the lower part of the vehicle body and repeating forward and backward traveling at a low speed. Normally, tire rollers have
A water sprinkling device to be used for road sprinkling (hereinafter referred to as a road sprinkling device) is mounted. This road surface watering device is intended to adjust the water content of the road surface (soil), cool asphalt immediately after compaction, etc., and discharges water from a road surface watering nozzle having a large slit-shaped injection hole toward the road surface. It is to be sprayed.

[0003] A large amount of water is required for watering the road surface. Therefore, the number of watering tanks (road surface watering tanks) for storing the water is four to four.
A large-capacity tank capable of storing a large amount of 5t of water is required, and this road surface watering tank is usually formed by partitioning the inside of the vehicle body. A watering pump is interposed on the watering pipe connecting the road surface watering nozzle and the road surface watering tank. By starting the watering pump, water is sprayed from the road surface watering nozzle toward the road surface. ing.

[0004]

Generally, in addition to the above-mentioned road surface spraying function, the road surface spraying device for the tire roller has a function of pumping water from an irrigation pond or a river to a watering tank, and a function of discharging water in the watering tank. It also has a function of supplying water to a car (for example, a construction vehicle having a watering tank but not having a water pumping function, such as a Macadam roller). For this reason, a branch passage is formed in the watering pipe line, and a plurality of manual opening / closing valves 51 for changing the flow path of water are attached to each branch portion as shown in FIG. Therefore, every time the worker performs road surface watering, water pumping, and water supply to another vehicle, it is necessary to switch the plurality of open / close valves 51 to respective predetermined open / closed states. However, there is a problem that it is difficult to determine which valve to operate because there are many (3 to 4) valves. Further, each opening / closing valve 51 is a place where the operator can easily perform a switching operation (a place exposed from the vehicle body, for example, a side portion or a lower portion of the driver's seat S as shown in FIG. 6).
Therefore, the sprinkling piping is laid out in accordance with the arrangement position of each opening / closing valve 51, and there is a problem that the layout design of the sprinkling piping is restricted.

The watering pump (for example, a road surface watering pump 5 shown in FIG. 1 as an example) is a large-sized pump driven by power from a PTO via a belt 5b. When putting the water, the cap 5a attached to the water injection port at the top of the road surface watering pump 5 was removed, and the worker injected water with a bucket or the like, and the workability was extremely poor.

The present invention has been made in order to solve such problems, and can easily switch between a road surface watering function, a water pumping function, and a water supply function for other vehicles, and also inject priming water from a watering pump. It is an object of the present invention to provide a compacted vehicle that is easy to use.

[0007]

The present invention uses the following means to achieve the above object. First, a road surface watering tank for storing water, a road surface watering pipe line connected to the road surface watering tank, a road surface watering pump provided in the road surface watering pipe line and a plurality of valves, and by operating the valve , Road surface watering function to spray water towards the road surface,
In a compacted vehicle equipped with a road surface sprinkler for switching between a pumping function for pumping water and a water supply function for another vehicle for supplying water to another vehicle, the valve is constituted by an electric valve.

[0008] An operation switch for operating a valve provided on the road surface watering pipe is provided with an ON-OF of a pumping function.
F, and a second switch for switching ON / OFF of the road surface watering function and another vehicle water supply function, and only when the first switch is switched to the OFF side. A control circuit for supplying power to the second switch is configured.

[0009] Further, a structure is provided in which a watering amount adjustment valve composed of an electric valve for adjusting the watering amount at the time of road surface watering and a watering amount adjustment switch for operating the watering amount adjustment valve are provided.

Further, a tire watering tank provided on the road surface watering tank or separately provided, a tire watering pipeline connected to the road surface watering tank or a separately provided tire watering tank, and a tire watering pipeline provided on the tire watering pipeline. In a compacted vehicle equipped with a tire watering pump and equipped with a tire watering device that sprays water toward the tire, the road surface watering pump and the tire watering pump are connected with an electric valve interposed in the tire watering pipe. Then, when the road surface watering pump is in communication with the tire watering pump, the tire watering pump is driven to inject priming water to the road surface watering pump.

[0011]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below with reference to FIGS. 1 is an external perspective view of a tire roller, FIG. 2 is a watering circuit diagram of a road surface watering device and a tire watering device, FIG. 3 is an explanatory diagram of each switch, and FIG. 4 is a sequence control circuit diagram showing control means of each valve. .

The tire roller R shown in FIG. 1 has an engine, a radiator, and the like mounted on the center of the upper part of the vehicle body 1, and has a plurality of tires as front wheels and rear wheels arranged at equal intervals in the vehicle width direction. The tire roller R is provided with a road surface watering device 2 having a road surface watering function, a water pumping function, and a water supply function for other vehicles, and a tire watering device 21 for watering a tire surface.

Referring to FIGS. 1 and 2, road surface watering device 2
Is a road surface watering tank 3 for storing water, a road surface watering pipe line 4 connected to the road surface watering tank 3, a road surface watering pump 5 provided in the road surface watering pipe line 4, and a plurality of valves (road surface watering valves 6, 7,. 29 and the other vehicle water supply valve 8), and by operating the road surface water supply valves 6, 7, 29 and the other vehicle water supply valve 8, a road surface watering function for watering from the road surface watering nozzle 12 toward the road surface ( Hereinafter, referred to as a road surface watering mode), a pumping function for pumping water through the pumping hose 10 (hereinafter, pumping mode), and a water supply function for other vehicles supplying water to other vehicles via the water supply hose 13 for other vehicles (hereinafter, other modes). (Referred to as a vehicle water supply mode). In the present invention, the road surface watering valves 6, 7, 29 and the other vehicle water supply valve 8 are constituted by electric valves. As a result, the valve can be controlled with a simple switch operation, so that the labor burden on the operator is reduced and an operation error is eliminated as compared with the conventional method of manually opening and closing the valve. Also, unlike the conventional case, there is no need to lay out the piping in accordance with the valve arrangement position,
This increases the degree of freedom in designing the layout of the pipeline.
Further, since the operation switch 14 (FIG. 3) can be attached to an arbitrary place, by disposing it around the driver's seat S such as a dash panel, the operator can quickly switch to each mode while sitting in the driver's seat S. Can be switched.

Among the above modes, the pumping mode is a mode in which water flows into the road surface watering tank 3, and the road surface watering mode and the other vehicle water supply mode are modes in which water flows out from the road surface watering tank 3. . Therefore, in this embodiment, as shown in FIG. 3, the operation switch 14 for operating the road surface watering valves 6 and 7 and the other vehicle water supply valve 8 is turned on in the pumping mode.
It comprises a first switch 16 for switching OFF and a second switch 17 for ON / OFF switching between the road surface watering mode and the other vehicle water supply mode. As shown in FIG. A control circuit is configured such that power is supplied to the second switch 17 only when is switched to the OFF side. With this configuration, each mode can be switched with a simple control circuit, and even if the operator forgets to turn off the switch 17 to the OFF (stop) side, the pumping function operates normally. As a result, it is possible to construct a simple switch system that does not cause a malfunction.

Further, as shown in FIG. 2, a watering amount adjusting valve 11 composed of an electric valve for adjusting the watering amount at the time of road surface watering is provided in the road surface watering pipe line 4, and as shown in FIG.
If the watering amount adjustment switch 18 for operating the watering amount adjustment valve 11 is provided, the operator can control the road surface watering amount by a simple switch operation.

When asphalt pavement of a road or the like is performed, when the pavement surface is rolled by the rolling wheel of the rolling vehicle, the asphalt mixture adheres to the rolling surface of the rolling wheel, and the rolling is continued as it is. And the deposits impair the flatness and smoothness of the pavement surface, which adversely affects the pavement quality. The tire watering device 21 shown in FIG. 2 is a device for preventing the asphalt mixture from adhering, and continuously or intermittently sprays water to the rolling wheel (tire) during the rolling operation. This prevents the asphalt mixture from adhering.

The tire watering device 21 includes a road surface watering tank 3
And a tire sprinkling pipe line 22 connected to the road surface sprinkling tank 3
And a tire watering pump 23 provided in the tire watering pipe passage 22 for watering the tire from a tire watering nozzle 24 attached to the pipe 25. As shown in FIG. 1, the pipe member 25 extends in the vehicle width direction along the surface of the tire. The front wheel side is attached to the yoke 1a supporting the tire, and the rear wheel side is attached to the vehicle body 1. . Tire sprinkling nozzles 24 of the same number as the number of tires are attached to both pipe members 25, and water is sprayed from the fine nozzles to the surface of the tire in a mist. In addition, as a watering tank of the tire watering device 21, a road surface watering tank 3 as a dedicated tire watering tank is used.
It may be provided separately from.

Here, the road surface watering pump 5 of the road surface watering apparatus 2 is a large-capacity pump having a large discharge amount such as a centrifugal pump, and is a pump that requires priming water for starting the pump. On the other hand, the tire watering pump 23 of the tire watering device 21 is a small-diaphragm pump or the like having a small discharge amount since the tire watering amount is small, and is a pump that does not require priming. Accordingly, the present invention provides an electric valve (priming valve 26) in the tire watering pipe line 22, and connects the road surface watering pump 5 and the tire watering pump 23 via a pipe line 28 connected to the priming valve 26. The tire sprinkling pump 23 is driven when the road sprinkling pump 5 and the tire sprinkling pump 23 are in communication with each other, so that priming water is injected into the road sprinkling pump 5. With this configuration, the priming water is automatically injected into the road surface watering pump 5 by a simple switch operation, and the labor burden on the worker is reduced.

The lower part of the vehicle body 1 (portion sandwiched between the front and rear tires) is occupied by the road surface watering tank 3, and it is difficult to dispose the large road surface watering pump 5 under the vehicle body 1. There is a small tire sprinkling pump 23
Can be positioned down to near the bottom of the road surface watering tank 3 (see FIG. 1). Therefore, even if the tire sprinkling pump 23 is a pump that requires priming, the water in the road surface sprinkling tank 3 will be automatically injected into the tire sprinkling pump 23 located below,
The tire watering pump 23 can be started as it is.

"Examples" Examples of the present invention will be specifically described below. The road surface watering tank 3 contains a large amount of water (4
-5 tons), and is formed by dividing the inside of the vehicle body 1 as shown in FIG. As shown in FIG. 2, the road sprinkling pipe 4 has a pipe 4 a connected to the road sprinkling tank 3, and branches into a pipe 4 b and a pipe 4 c, and the A port of the road sprinkling valve 6 and the road sprinkling valve 7, respectively. Connected to the B port. In the present embodiment, the road surface watering valves 6 and 7 are three-way ball valves using a motor as an actuator. The three-way ball valve has a so-called L port structure in which a flow path having an L-shaped cross section is formed in a built-in ball portion, and the C port is a common port. That is, when the ball rotates, the flow path in the valve is changed from the port A to port C or the port B to port C.
It switches to one of the ports.

The C port of the road surface watering valve 6 is connected to a pipe 4d.
Is connected to the inflow port 5a of the road surface watering pump 5, and the C port of the road surface watering valve 7 is connected to the discharge port 5b of the road surface watering pump 5 via the pipe 4e. A long pumping hose 10 with a strainer 9 attached to the tip is connected to the B port of the road surface watering valve 6 via a pipe 4f. The pipe line connected to the port A of the road surface watering valve 7 branches into lines 4g and 4h, and the line 4g is connected to the road surface watering nozzle 1 through the watering amount adjustment valve 11 and the road surface watering valve 29.
2, and the pipeline 4 h is connected to a long other vehicle water supply hose 13 via another vehicle water supply valve 8. The road surface watering nozzles 12 are mounted as a pair on the right and left rear end portions of the vehicle body 1 with the ejection ports facing the vehicle rear side.

The watering amount adjusting valve 11 in this embodiment is a two-way ball valve using a motor as an actuator, and has a structure in which a flow path is formed in a built-in ball portion. That is, by controlling the rotation angle of the ball portion, the flow rate of water flowing through the pipeline 4g is adjusted. In addition, the road surface watering valve 29 interposed between the watering amount adjustment valve 11 and the road surface watering nozzle 12 includes:
This is a valve for facilitating the stop / start of road surface watering after the watering amount adjustment valve 11 adjusts the watering amount. In this example, the valve is an electromagnetic valve (a ball valve may be used). In other words, since it is necessary to close the pipe 4g at the time of stopping the watering of the road surface, if the pipe 4g is closed with the watering amount adjustment valve 11, if the watering amount adjustment valve 11 is used next time, the watering amount adjustment valve 11 will be closed again. Need to adjust. However, if the pipe 4g is closed by the road surface watering valve 29, once the watering amount adjustment valve 11 is once adjusted to an appropriate position, there is no need to adjust again, and the same flow rate (watering amount) is secured. Will be. The other vehicle water supply valve 8 is connected to the pipe 4h.
This valve is a solenoid valve that opens and closes the flow path, and is an electromagnetic valve in this example. As described above, by switching and operating each of the watering amount adjustment valve 11, the road surface watering valve 29, and the other vehicle water supply valve 8, one of the pipes 4g and 4h is opened as a water flow path. Of course, instead of providing the road surface watering valve 29 and the other vehicle water supply valve 8, it is also possible to provide a three-way valve at the branch of the pipe 4g and the pipe 4h to switch between the two pipes. .

In the tire watering apparatus 21, the inlet 23a of the tire watering pump 23 is connected to the road surface watering tank 3, and the outlet 23b is connected to the pipe 25 and the tire watering pipe through the priming valve 26 and the tire watering pipe 22. Nozzle 2
4 is connected. In this embodiment, the priming valve 26 is used.
Is an electromagnetic three-way ball valve. The internal structure of the three-way ball valve is the above-described road surface watering valve 6,
Same as 7, C port is a common port,
The flow path in the valve is A port-C port or B port-
It switches to one of the C ports. The priming valve 26 is arranged such that the C port is connected to the discharge port 23 b of the tire watering pump 23, and the A port is connected to the pipe 25 and the tire watering nozzle 24. Reference numeral 27 denotes a drain valve (manual type) of the road surface water pump 5. The B port of the priming valve 26 is connected to the drain port 5 c of the road surface water pump 5 and the water drain valve 27 through a pipe 28. Is connected to the drain port 5c.

As shown in FIG.
7, 29 and an operation switch 14 for operating the other vehicle water supply valve 8, a watering amount adjustment switch 18 for operating the watering amount adjustment valve 11, and a switch 1 for operating the priming valve 26.
Reference numeral 9 is intensively arranged around the driver's seat S together with the nameplate 15 to which each function display is attached. The operation switch 14 is used to switch the pumping mode between ON and OFF as described above.
, And a second switch 17 for switching ON / OFF of the road surface watering mode and the other vehicle water supply mode. In this example, both switches are rotary switches (rotary switches) each having a knob portion 14a. . Switch 1
On the side 6, the on / off switching of the pumping mode is performed by matching the mark 16 a attached to the switch with each of the display characters “pump” and “stop” on the nameplate 15. Referring to FIG. 4, when the contact operation of switch 16 is switched to the “pumping” side, the terminals are connected, and when the switch is switched to the “stop” side, the terminals are connected.

On the switch 17 side, the mark 17a attached to the switch is matched with each of the display characters such as "road surface watering", "stop", and "water supply to another vehicle" on the nameplate 15, so that the road surface is marked. O for watering mode and water supply mode for other vehicles
N-OFF switching is performed. Referring to FIG. 4, when the contact operation of switch 17 is switched to the “road surface watering” side, the terminals are connected and the terminals are connected together. When switched to the “stop” side, the terminals are connected and the terminals are connected. When switching to the "other vehicle water supply" side, the terminals are connected together and the terminals are connected together.

The watering amount adjustment switch 18 is an automatic return type switch. When the switch is pressed, the watering amount adjustment valve 11 moves, and when the hand is released, the watering amount adjustment valve 11 stops at that position.
Arbitrary water volume adjustment becomes possible. Although a toggle switch is used in this embodiment, another automatic return type switch may be used as long as the function described in this embodiment can be satisfied.

The switch 19 is a rotary switch (rotary switch) having a knob 19a. In this embodiment, in addition to switching ON / OFF of the priming mode, a draining function (water draining) of the road surface watering pump 5 is provided. Mode) ON-O
The FF is switched so that the mark 19b attached to the switch is matched with each of the display characters "Priming", "Stop", and "Draining" on the nameplate 15 to set the priming mode and the drainage. Mode ON-OFF
Is switched. Referring to FIG. 4, when the contact operation of switch 19 is switched to the "priming" side, the terminals are connected together and the terminals are connected together. When switched to the “stop” side, the terminals are connected and the terminals are connected. Also,
When switched to the "water drain" side, the terminals are connected together and the terminals are connected together.

Next, a control circuit for controlling each valve will be described with reference to FIG. The road surface watering valves 6 and 7 are connected to the + terminal of the battery via the relay R1. The switch 16 is a single-pole, double-throw switch. The terminal serving as the COM terminal is connected to the + terminal of the battery, and the terminal is connected to the relay R1. The terminal of the switch 16 is connected to a terminal which is a COM terminal of the switch 17. Also, the watering amount adjustment switch 18
Is connected to the terminal of the switch 16 via the relay R2,
The watering amount adjustment valve 11 is connected to a terminal of the switch 16 via a relay R3, and the road surface watering valve 29 is connected to relays R2 and R3 connected in parallel. Switch 1
Reference numeral 7 denotes a two-pole, double-throw switch. The terminal on the one-pole side (road surface watering mode) is connected to the relay R2, and the terminal is connected to a terminal serving as the COM terminal of the switch 19.
A terminal on the other pole side of the switch 17 (other vehicle water supply mode) is connected to a solenoid of the other vehicle water supply valve 8. Switch 1
Reference numeral 9 denotes a two-pole double-throw switch, and a terminal on one pole side (priming mode) and a terminal on the other pole side (water draining mode) are connected to the relay R3 and a priming valve 26.
Connected to the solenoid.

Next, the operation of the present invention will be described for each mode. FIG. 5 shows a list of operating states of the electric valves in each mode. "Pumping mode" Put the pumping hose 10 into a river or irrigation pond, etc.
Drive. Next, when the switch 16 is turned to the ON side, the terminals of the switch 16 are connected in FIG.
The relay R1 operates. When the relay R1 is activated, FIG.
In the above, the B port and the C port of the road surface watering valves 6 and 7 are in communication with each other by the operation of the motor. Also,
Since the solenoid of the priming valve 26 composed of an electromagnetic valve is not energized, the priming valve 26 maintains the state where the A port and the C port communicate with each other. Therefore, the water sucked by the road surface watering pump 5 is pumped to the road surface watering tank 3 through the path of the pipe 4f → the pipe 4d → the pipe 4e → the pipe 4c → the pipe 4a.

During the pumping operation, the switch 1 is turned on.
Other switches (switch 1) connected to terminal 6
7, switch 19, and watering amount adjustment switch 18) have a control circuit configuration in which battery power is not supplied. Therefore, even if an operator forgets to turn off switches 17 and 19 to the OFF (stop) side, In addition, the pumping function will operate normally, and a simple switch system that will not cause a malfunction will be constructed.

The "road surface watering mode" switch 16 is turned off.
Side (the terminals of the switch 16 are connected to each other, and the road surface watering valves 6 and 7 are in communication with the A port and the C port, respectively, by the relay R1 which is not energized). When the switch 17 is turned to the sprinkling mode side, the terminal of the switch 17 is connected to the terminal, and the terminal is disconnected, so that the solenoid of the water supply valve 8 of the other vehicle is not energized, and the water supply valve 8 of the other vehicle is closed as it is. Is maintained. Similarly, the solenoid of the priming valve 26 is not energized and the priming valve 2
Reference numeral 6 maintains the state in which the A port and the C port communicate with each other. Therefore, when the road surface watering pump 5 is driven in this state, the water in the road surface watering tank 3 is changed to the pipe 4a →
The water flows along the route of the pipe 4b → the pipe 4d → the pipe 4e → the pipe 4g, and is sprayed from the road surface watering nozzle 12 toward the road surface.
When the terminals of the switch 17 are connected to each other, the relay R2 is operated to turn on the watering amount adjustment switch 18, and the watering amount adjustment valve 11 can be controlled. At 18, an appropriate amount of watering can be adjusted. When it is desired to temporarily stop during watering, if the switch 17 is set to the stop position, the road surface watering valve 29 is closed (the watering amount adjustment valve 11 is not operated), and the watering is interrupted. Therefore, when the switch 17 is next set to the road surface watering position, it is not necessary to adjust the watering amount adjustment valve 11 again, and watering can be started with the same watering amount.

Also, while the road surface is being sprinkled, the switch 19 connected to the terminal of the switch 17 is not supplied with battery power.
Since the control circuit is configured such that the battery power is supplied to the switch 19 only when the switch 7 is turned to the OFF (stop) side, even if the operator forgets to turn the switch 19 to the OFF side, the road surface watering function can be performed. Will operate normally.

The "other vehicle water supply mode" switch 16 is turned off.
Side (the terminals of the switch 16 are connected to each other, and the road surface watering valves 6 and 7 are connected to the A port and the C port respectively by the de-energized relay R1). When the switch 17 is turned to the vehicle water supply mode side, since the terminals of the switch 17 are connected, the solenoid portion of the other vehicle water supply valve 8 is energized, and the other vehicle water supply valve 8 is opened. Since the solenoid portion of the priming valve 26 is not energized, the priming valve 26 maintains the state where the A port and the C port communicate with each other. Further, both the relays R2 and R3 are de-energized. Therefore, in this state, the road surface watering pump 5
Is driven, the water in the road surface sprinkling tank 3
The water flows along the route of the pipe 4b, the pipe 4d, the pipe 4e, and the pipe 4h, and is supplied to the other vehicle via the other vehicle water supply hose 13. Since the relay R2 is de-energized, it is impossible to control the watering amount adjustment valve 11 by the watering amount adjustment switch 18.

In this mode, the switch 19
Since the battery power is not supplied to the other vehicle, the water supply function of the other vehicle operates normally regardless of the switching position of the switch 19.

The "priming mode" switch 16 is switched to the OFF side (the road surface watering valves 6 and 7 are each set to A
Port and C port are in communication), switch 17 is also OFF
When the switch 19 is turned to the priming mode in a state where it is switched to the side, the relay R3 is turned on (the relay R2 is turned off) by connecting the terminals thereof, and the watering amount adjustment valve 11 is automatically turned on. Is fully opened. In addition, the solenoid portion of the priming valve 26 is energized, and the priming valve 26 switches to a state in which the B port and the C port communicate with each other. Therefore, when the tire watering pump 23 is driven in this state, the water in the road surface watering tank 3 is injected as priming water into the inside of the road surface watering pump 5 from the drain port 5c via the tire watering pump 23 → the pipe 28. Will be.

The amount of priming water may be automatically stopped at an appropriate amount (amount of hiding the impeller) by providing a timer or the like. The water that has become tan is discharged from the outlet 5b.
Since the water flows out of the road surface spray nozzle 12 through the path of the pipe line 4e → the pipe line 4g → the road surface watering valve 29, it is sufficient that the operator turns off the switch 19 by confirming the flowed water. is there.

The "water drainage mode" switch 16 has been switched to the OFF side (the road surface watering valves 6 and 7 are A
Port and C port are in communication), switch 17 is also OFF
When the switch 19 is turned to the draining mode side in a state where it is switched to the side (the road surface watering valve 29 is kept closed as it is), the terminals are connected, and the relay R3 is turned on. (The relay R2 is in a non-energized state), and the watering amount adjustment valve 11 is automatically fully opened. In addition, the solenoid portion of the priming valve 26 is energized, and the priming valve 26 switches to a state in which the B port and the C port communicate with each other. From the above,
Since the road surface watering pump 5 comes into contact with the atmosphere through the discharge port 5b and the pipes 4e, 4h, and the other vehicle water supply hose 13, the water in the road surface watering pump 5 is discharged from the drain port 5c through the pipe line. Tire watering pump 2 located below via 28
3 will flow.

Although the preferred embodiment of the rolling compact vehicle according to the present invention has been described above, the configuration of the road surface watering pipe, the types of the road surface watering valve and the switch, and the mounting positions are not limited to the above-described embodiments. The present invention can be appropriately changed in design without departing from the spirit thereof.

[0039]

According to the present invention, the following effects can be obtained. (1) Since the road surface watering valve, which switches between the road surface watering function, the water pumping function, and the water supply function of another vehicle, is constituted by an electric valve, the switching can be performed by a simple switch operation, and the labor burden on the operator is reduced. You. Further, there is no need to lay out the piping in accordance with the arrangement position of the valve, and the degree of freedom in the layout design of the piping is increased. Further, by disposing the operation switches around the driver's seat such as a dash panel, the operator can quickly switch between the modes while sitting on the driver's seat. (2) The operation switch of the road surface watering valve is constituted by a first switch for switching ON / OFF of the pumping mode and a second switch for switching ON / OFF of the road surface watering mode and the water supply mode for other vehicles. And set the first switch to O
By configuring a control circuit in which power is supplied to the second switch only when switching to the FF side, the operation is simplified, and a simple switch system that does not cause a malfunction can be constructed. it can. (3) If a watering amount adjustment valve and a watering amount adjustment switch for adjusting the watering amount at the time of watering the road surface are provided, the operator can control the appropriate watering amount on the road surface by a simple switch operation. It is possible to quickly respond to the adjustment of the water content ratio during compaction of the roadbed or the adjustment of the cooling water for early opening after asphalt pavement. (4) By driving the tire watering pump and automatically injecting priming water to the road surface watering pump, work such as pumping water with a bucket or the like becomes unnecessary, and the labor burden of the worker is reduced. Contributes to improving the ability of

[Brief description of the drawings]

FIG. 1 is an external perspective view of a tire roller.

FIG. 2 is a watering circuit diagram of a road surface watering device and a tire watering device.

FIG. 3 is an explanatory diagram of each switch.

FIG. 4 is a sequence control circuit diagram showing control means of each valve.

FIG. 5 is a table showing the operating state of each electric valve in each mode.

FIG. 6 is an explanatory view showing the arrangement of a conventional manual on-off valve.

[Explanation of symbols]

 R Tire roller 1 Body 2 Road surface watering device 3 Road surface watering tank 4 Road surface watering pipeline 5 Road surface watering pump 6,7 Road surface watering valve 8 Other vehicle water supply valve 10 Pumping hose 11 Watering amount adjustment valve 12 Road surface watering nozzle 13 Other vehicle water supply hose 14 operation switch 16 switch (first switch) 17 switch (second switch) 18 watering amount adjustment switch 19 switch 21 tire watering device 22 tire watering pipeline 23 tire watering pump 26 priming valve 29 road surface watering valve

Claims (4)

[Claims] 1. A road surface watering tank for storing water, a road surface watering pipeline connected to the road surface watering tank, a road surface watering pump provided on the road surface watering pipeline and a plurality of valves, and the valve is operated. By doing so, in a compacted vehicle equipped with a road surface watering device that switches between a road surface watering function for watering the road surface, a water pumping function for pumping water, and a water supply function for other vehicles that supplies water to another vehicle, A compacted vehicle comprising an electric valve. 2. An operation switch for operating the valve,
A first switch for switching ON / OFF of the pumping function and a second switch for switching ON / OFF of the road surface watering function and another vehicle water supply function, and the first switch is turned to the OFF side. 2. The compacted vehicle according to claim 1, wherein a control circuit is configured to supply power to the second switch only when the switching is performed. 3. A watering amount adjustment valve comprising an electric valve for adjusting the watering amount at the time of road surface watering, and a watering amount adjustment switch for operating the watering amount adjustment valve are provided. The compacted vehicle according to claim 1 or 2. 4. A tire sprinkling tank connected to the road sprinkling tank or a tire sprinkling tank provided separately from the road surface sprinkling tank or a tire sprinkling tank provided separately from the road surface sprinkling tank. 4. The rolling vehicle according to claim 1, further comprising a tire watering pump, and a tire watering device for watering the tire. 5. The road surface watering pump is connected to the tire watering pump, and when the road surface watering pump and the tire watering pump are in communication with each other, the tire watering pump is driven to prime the road surface watering pump. A compacted vehicle characterized by having a structure for water injection.