JP4958874B2 - Boarding type rolling roller vehicle - Google Patents

Description

  The present invention relates to a boarding type rolling roller vehicle used for rolling work such as finishing of asphalt pavement and formation of a roadbed.

  An example of this type of boarding type rolling roller vehicle is called a so-called tire roller vehicle, and this tire roller vehicle uses its tire (wheel) as a rolling roller. During the rolling operation described above, the tire roller vehicle sprays water on the wheels to prevent the bonding material from adhering to the wheels, and also sprays water on the paved road surface to cool the bonding material and promote hardening. It has a configuration with a watering device.

  The water used for watering is stored in a tank in the body of the tire roller vehicle, but rust and scale may occur on the inner wall of the tank. In addition, water spraying on wheels and paved roads may use river water, etc., which contains minute dust and algae, etc., so that foreign matter such as rust, scale, dust and algae can be removed from the watering device, especially the wheel side. There was a case that the sprinkler of the water was broken. Specifically, since the water sprinkler on the wheel side requires less water than the water sprinkler on the road surface side, a relatively small electric pump is used. Such an electric pump is caused by the above-mentioned foreign matter. Susceptible to clogging.

For this reason, a wheel side tank for watering the wheel and a road surface tank for watering the road surface are provided independently. When the wheel side tank becomes empty, the water in the road surface side tank is filtered into the wheel side tank. A watering system is known that supplies water through the tank and constantly cleans the water in the wheel-side tank (Patent Document 1).
JP 2007-70903 A

  Even if the electrical equipment such as the electric pump described above is not caused by foreign matter, its power feeding system may fail. When a failure occurs in such an electrical device, the watering device on the wheel side becomes inoperable and watering to the wheel cannot be performed. For this reason, the rolling operation cannot be performed until the malfunctioning electrical device is replaced and the function of the watering device on the wheel side is restored, resulting in a significant reduction in work efficiency.

  The present invention has been made on the basis of the above-mentioned circumstances, and the purpose of the present invention is to add a simple configuration, and even when the electrical equipment of the watering device on the wheel side breaks down, it is used for road surfaces. It is providing the boarding type rolling-roller vehicle which enabled watering to a wheel using a watering apparatus.

  Therefore, in order to solve the above-described problems, the present invention includes a rolling roller that also serves as a wheel at the front and rear of a vehicle body having a driver's seat, and a rolling roller and a watering system for a road surface. In a boarding type rolling-roller vehicle, a watering system is disposed inside a vehicle body, and a watering source that stores water for watering, and water supplied from the watering source via a road surface watering line. A road surface water sprinkler for watering the road surface, a wheel water sprayer for spraying water supplied from a watering source through the wheel side watering line to the rolling roller, a road surface side watering line, and a wheel side watering line. And a valve means that can be switched to supply water in the road surface side sprinkling line to the wheel sprinkler side via the connecting pipe (claim 1).

Specifically, the watering system further includes an electric pump that is disposed in the wheel-side watering line and supplies water in the watering source toward the wheel watering device. In this case, the connection pipe is downstream of the electric pump. Is connected to the wheel-side watering line (claim 2).
According to the boarding type rolling roller vehicle of the first and second aspects, the valve means is normally in a normal state where the road surface side watering line is opened and the connection pipe is closed. In this case, the road surface-side and wheel-side watering lines can be supplied to the road surface watering device and the wheel watering device independently of each other, and water can be sprayed from these road surface watering device and wheel watering device.

Under such circumstances, if a failure occurs in the wheel-side watering line, specifically in the electrical equipment such as the electric pump, and watering from the wheel watering device becomes impossible, The means is switched from the normal state described above to the emergency state, and in this emergency state, the upstream portion of the road surface side watering line is connected to the connection pipe.
Therefore, the water of the watering source flows from the upstream side portion of the road surface side watering line to the connecting pipe, so that the wheel side watering line is supplied with water via the connecting pipe and can be sprinkled from the wheel watering device.

Preferably, the watering source consists of a water tank common to the road surface side and the wheel side watering line, and in this case, the watering system is arranged in the wheel side watering line between the water tank and the electric pump. A filter is further included (claim 3). Such a filter cleans the water going from the water tank to the electric pump.
More preferably, the watering system can include a check valve located in the connecting pipe downstream of the valve means, which only allows water flow from the road side watering line to the wheel side watering line ( Claim 4). Such a check valve prevents water in the wheel-side watering line from flowing excessively into the connection pipe.

  The boarding type rolling roller vehicle according to any one of claims 1 to 4, for example, even if a failure occurs in an electrical device of a wheel-side watering line, the water flowing through the road surface-side watering line can be obtained only by switching the valve means. It can be used for sprinkling from wheel sprinklers, and it is possible to continue rolling work (paving work).

(Example)
Hereinafter, an embodiment of a boarding type rolling roller vehicle according to the present invention will be described with reference to the drawings.
FIG. 1 shows a tire roller vehicle as a boarding type rolling roller vehicle, and the tire roller vehicle includes a vehicle body. A front side rolling roller 2f and a rear side rolling roller 2r are provided at the front and rear portions of the vehicle body 1. A plurality of these front and rear rolling rollers 2f and 2r are arranged adjacent to each other in the width direction of the vehicle body 1 and also serve as wheels (tires) of the tire roller vehicle. That is, the front and rear rolling rollers 2f and 2r are steering wheels and driving wheels, respectively, and the steering of the front rolling roller 2f is possible by the steering handle 4 disposed in the canopy-type driver seat 3. Yes. The driver's seat 3 is provided on the upper surface of the vehicle body 1. For this reason, a step for assisting the driver to get on and off the driver's seat 3 is provided on the side surface of the vehicle body 1.

  Further, a tire water spray nozzle 5 and a scraper 6 as wheel sprinklers are assigned to the front and rear rolling rollers 2f and 2r, respectively. The tire spray nozzle 5 is disposed in the vicinity of the roller surface of the corresponding rolling roller 2 and can spray water toward the roller surface, while the scraper 6 has an asphalt pavement bonding material attached to the roller surface. To prevent. Further, a plurality of road surface watering nozzles 7 are arranged as a road surface water sprayer at the rear part of the vehicle body 1, and these road surface watering nozzles 7 can spray water toward the road surface behind the vehicle body 1.

Hereinafter, the watering system including the tire watering nozzle 5 and the road surface watering nozzle 7 will be described in detail with reference to FIG.
The watering system includes a water tank 12 as a watering source, and the water tank 12 is connected to a road surface watering pipe 7a provided with a road surface watering nozzle 7 via a road surface side watering line. This road surface side watering line is comprised from supply piping 24, 16, 19, 21, 25, and is arrange | positioned from the water tank 12 in this order. A watering pump 17 is disposed in the supply pipe 16, and the watering pump 17 can be driven by a hydraulic motor.

The hydraulic motor is driven by pressure oil supplied from the hydraulic pump, and the hydraulic pump itself is driven by the engine. Further, a drain pipe extends from the watering pump 17, and a drain cock 39 is disposed in the drain pipe.
When the watering pump 17 is driven, the watering pump 17 supplies the water in the water tank 12 to the road surface watering pipe 7a via the road surface side watering line, and thereby water is sprayed from the road surface watering nozzle 7 onto the road surface. Let

On the other hand, a three-way switching valve 15 is disposed between the water tank 12 and the watering pump 17, that is, between the supply pipes 24 and 16. A flexible water absorption hose 14 extends from the three-way switching valve 15, and the water absorption hose 14 has an external strainer 13 at its tip.
The three-way switching valve 15 has ports 15A, 15B, and 15C to which a supply pipe 16, a supply pipe 24, and a water absorption hose 24 are connected, respectively, and selective connection between these ports 15A, 15B, and 15C is switched. This is possible by operating the lever 15D. Specifically, the three-way switching valve 15 is connected between the ports 15C and 15A, and is connected to the tank side switching position where the connection between the ports 15A and 15B is cut off, and connected between the ports 15B and 15A. , And the nozzle side switching position for cutting off the connection of the ports 15A and 15C, and selectively switching between these switching positions.

A three-way switching valve 22 is also arranged between the watering pump 17 and the road surface watering nozzle 7, that is, between the supply pipes 21 and 25. A supply pipe 23 extends from the three-way switching valve 22, and the supply pipe 23 is connected to the water tank 12.
The three-way switching valve 22 has a port 22A, a port 22B, and a port 22C to which a supply pipe 21, a supply pipe 23, and a supply pipe 25 are connected, and a selective connection between these ports 22A, 22B, and 22C is possible. This is possible by operating the switching lever 22D. Specifically, the three-way switching valve 22 connects between the ports 22A and 22B, while the tank-side switching position that cuts off the connection between the ports 22A and 22C, and the ports 22A and 22C. And a nozzle-side switching position that cuts off the connection between 22B, and is selectively switched between these switching positions.

  Therefore, the water absorption hose 14 is fed out from the vehicle body 1 and the external water absorption strainer 13 at the tip thereof is submerged in a water source such as a river, while both the three-way switching valves 15 and 22 can be switched to the tank side switching position. When the pump 17 is driven, the watering pump 17 draws water from a water source such as a river, and supplies the pumped water to the water tank 12 through the water absorption hose 14 and the supply pipes 16, 19, 21, and 23. Can do.

When water is sprayed from the road surface water spray nozzle 7, both of the three-way switching valves 15 and 22 are switched to the nozzle side switching position.
Furthermore, a three-way switching valve 20 is also arranged between the watering pump 17 and the three-way switching valve 22, that is, between the supply pipes 19 and 21. A flexible connection hose 26 extends from the three-way switching valve 20 and is used to connect to another tire roller vehicle, that is, a water tank of another vehicle. . Although not shown in FIG. 2, the water tank 12 is provided with a connection port, and a connection hose of another vehicle can be connected to the connection port.

  The three-way switching valve 20 has ports 20A, 20B, and 20C to which the supply pipes 19 and 21 and the connection hose 26 are respectively connected, and the selective connection between these ports 20A, 20B, and 20C is the switching lever 20D. It is possible by the operation. Specifically, the three-way switching valve 20 connects between the ports 20A and 20B, while connecting the nozzle side switching position for blocking the connection between the ports 20A and 20C and the ports 20A and 20C, while connecting the ports 20A and 20C. The other vehicle side switching position that cuts off the connection between 20B is selectively switched between these switching positions.

When water is sprayed from the road surface water spray nozzle 7, the three-way switching valve 20 is switched to the nozzle side switching position. However, when the connection hose 26 is connected to the water tank of another vehicle, the three-way switching valve 20 is switched to the other vehicle side. Switch to position. In this case, the water sent from the watering pump 17 is supplied not to the road surface watering nozzle 7 but to the water tank of another vehicle.
On the other hand, the watering system is provided with a tire-side watering line in addition to the above-mentioned road-side watering line. Each of the tire watering pipes 5r provided with the tire watering nozzle 5 is connected. Specifically, the tire-side watering line includes a supply pipe 27 extending from the water tank 12 and supply pipes 33 and 35 branched from the tip 34 of the supply pipe 27 and connected to the tire watering pipes 5r and 5f, respectively. Has been.

A watering pump 30 is disposed in the supply pipe 27, and the watering pump 30 can be driven by an electric motor 30a.
Further, in the supply pipe 27, a stop valve 28 and a filter 29 are sequentially arranged upstream from the watering pump 30 from the water tank 12 side.
The stop valve 28 can open and close the supply pipe 27, and the filter 29 filters water flowing from the water tank 12 toward the watering pump 30 to remove foreign matters mixed in the water and cleans the watering pump 30. To supply fresh water.

Further, a stop solenoid valve 31 is disposed downstream of the watering pump 30 in the supply pipe 27, and the stop solenoid valve 31 can open and close the supply pipe 27 in the same manner as the stop valve 28.
Note that a drain pipe is branched from a connection point 32 located downstream of the stop solenoid valve 31 in the supply pipe 27, and a drain cock 41 is disposed in the drain pipe.

Therefore, when the watering pump 30 is driven in a state where both the stop valve 28 and the stop solenoid valve 31 are opened, the watering pump 30 draws water in the water tank 12 through the tire-side watering line described above to the tire watering pipe. 5f and 5r are respectively supplied and water is sprayed from the tire water spray nozzles 5 of these tire water spray pipes 5f and 5r.
As shown in FIG. 2, the road surface side watering line described above further includes a three-way switching valve 18 as a valve means between the watering pump 17 and the three-way switching valve 20, that is, between the supply pipes 16 and 19. Yes. A supply pipe 37 as a connection pipe extends from the three-way switching valve 18, and the supply pipe 37 is connected to a supply pipe 35 of the tire-side watering line at a connection point 36.

  The three-way switching valve 18 has ports 18A, 18B, and a port 18C to which the supply pipe 16, the supply pipe 19, and the supply pipe 37 are connected, and the port 18A, 18B, and the port 18C are operated by operating the switching lever 18D. Selective connection with is possible. Specifically, the three-way switching valve 18 connects between the ports 18A and 18B, while blocking the connection between the ports 18A and 18C and the connection between the ports 18A and 18B. On the other hand, it has a second switching position for connecting the ports 18A and 18C, and is selectively switched between these switching positions.

A check valve 38 is disposed in the supply pipe 37, and this check valve 38 allows only the flow of water from the three-way switching valve 18 toward the supply pipe 35 and prevents the reverse flow.
A drain pipe also extends from a connection point 36 of the supply pipe 35, and a drain cock 40 is disposed in the drain pipe.
The above-described three-way switching valve 18 is normally in the first switching position, and allows water spraying from the road surface water spray nozzle 7 and water supply to the water tank 12 described above.

  However, in the tire-side watering line, when an electrical device such as the electric motor 30a that drives the watering pump 30 or a stop solenoid valve 31 fails, water spraying from the tire watering nozzle 5 becomes impossible. The switching valve 18 is switched from the first switching position to the second switching position. In this case, since the water sent from the watering pump 17 of the road surface side watering line is supplied to the supply pipes 35 and 33 of the tire side watering line through the supply pipe 37, watering from the tire watering nozzle 5 is possible. It becomes. That is, even before the failed electrical device is replaced, the rolling operation can be performed while water is sprayed from the tire water nozzle 5, and work efficiency can be improved.

  In the above-described embodiment, the water tank 12 is shared for water spraying on the tire and the road surface. However, a separate water tank may be provided for the water spraying, and the valve means is the three-way switching valve 18. Instead, for example, it may be an on-off valve arranged in each of the road surface side watering line and the supply pipe, and various direction switching valves can be used. Furthermore, the present invention is similarly applicable to other types of boarding type rolling roller vehicles other than tire roller vehicles.

It is a side view of a tire roller vehicle. It is the circuit diagram which showed the watering system.

Explanation of symbols

1 Car body 2 Rolling roller 5f, 5r Tire spray pipe (tire spray nozzle)
7a Road surface watering pipe (road surface watering nozzle)
12 Water tank (watering source)
16 Supply piping (part of road surface watering line)
17 Watering pump 18 Three-way switching valve (valve means)
27 Supply piping (part of wheel-side watering line)
30 Watering pump (electric pump)
30a Electric motor 31 Stop solenoid valve 37 Supply piping (connection piping)
38 Check valve

Claims (4)

In a boarding type rolling roller vehicle equipped with a rolling roller that also serves as a wheel at the front and rear of a vehicle body having a driver's seat, and equipped with a watering system for the rolling roller and road surface,
The watering system is
A watering source that is disposed inside the vehicle body and stores water for watering,
A road surface watering device that is provided on the vehicle body and that waters the water supplied from the watering source via a road surface watering line to the road surface;
A wheel sprinkler that is provided in the vehicle body and sprays water supplied from the watering source through a wheel-side watering line to the rolling roller;
A connection pipe connecting the road surface side watering line and the wheel side watering line to each other;
And a valve means switchable to supply water in the road surface side watering line to the wheel watering device side through the connection pipe. The watering system further includes an electric pump disposed in the wheel-side watering line and supplying water in the watering source toward the wheel watering device,
The boarding type rolling roller vehicle according to claim 1, wherein the connection pipe is connected to the wheel-side watering line downstream of the electric pump. The watering source consists of a water tank common to the road surface side and the wheel side watering line,
The boarding type rolling roller vehicle according to claim 2, wherein the watering system further includes a filter disposed on the wheel side watering line between the water tank and the electric pump. .   The watering system further includes a check valve disposed in a connection pipe on the downstream side of the valve means, and the check valve allows only a flow of water from the road surface side watering line to the wheel side watering line. The boarding type rolling roller vehicle according to any one of claims 1 to 3.

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