JPH0584183B2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Field of Application] The present invention provides a structure in which, at a location on the front side of the rear end of the vehicle body,
The present invention relates to a water cannon vehicle that includes a water discharge section and a plurality of water receiving sections at the rear end of the vehicle body.

[Conventional technology]

Such water cannon trucks are mainly used for firefighting, and generally, a pump truck equipped with a tank and a water supply pump is connected to the plurality of water receiving sections by a plurality of hoses, and the water discharging section Water will be injected into the desired location.

By the way, conventionally, a single water supply pipe has been provided to connect a plurality of water receiving sections and a water discharging section. (Conventional literature cannot be listed.) [Problem to be solved by the invention] Generally, the transmission part for running is arranged at the center of the vehicle body in the width direction, and therefore, one water supply The tube may be placed at one lateral end of the vehicle body, or it may be placed above the driving transmission section.

However, in the former case, since the water supply pipe is disposed only on one lateral end of the vehicle body, there is a disadvantage that the weight balance in the left-right direction of the vehicle body becomes poor.

Furthermore, in the latter case, the water supply pipe is located at the upper part of the vehicle body, so there is a disadvantage that the water discharge part is installed at a higher location.

In other words, when discharging water from the water discharging section, a large reaction force is generated due to the water discharging, so it is desirable to install the water discharging section as low as possible to improve the stability of the vehicle body when discharging water. However, if the water supply pipe is installed in the upper part of the vehicle body, it becomes difficult to lower the height of the water discharge part.

The present invention has been made in view of the above-mentioned circumstances, and its purpose is to maintain a good weight balance in the left-right direction of the vehicle body while improving the water discharging part by making effective use of the original structure. The point is that it can be installed low.

[Means for solving problems]

A characteristic configuration of the water cannon vehicle according to the present invention includes a pair of left and right water supply pipes that connect a water discharge section provided at a location forward of the rear end of the vehicle body and a plurality of water receiving sections provided at the rear end of the vehicle body. , the water supply pipes are distributed and arranged at both lateral sides of the vehicle, and the rear ends of these water supply pipes are horizontally branched, and the water receiving portions are formed at the rear ends of these branched pipe parts. Its functions and effects are as follows.

[Effect]

That is, focusing on the fact that water is supplied to the car body in multiple parts, that is, the car body is equipped with a plurality of water receiving parts, and the water supplied to the plurality of water receiving parts is divided into two parts. Taking advantage of the fact that water can be supplied to the water discharge section separately without using a special branching structure, a pair of water supply pipes on the left and right are installed to supply water to the water discharge section. . By distributing and arranging the left and right water supply pipes on both sides of the vehicle, a good weight balance in the left and right direction of the vehicle body is maintained, and the water supply pipes are installed low to allow the water discharge section to It is designed to be installed low. Moreover, the rear end of each water supply pipe is branched horizontally, and the water receiving part is configured at the rear end of each branched pipe, making it easier to connect to a pump truck. It is possible to secure the amount of water discharged even though a thin hose with good strength is used, and the multiple water receiving parts are set at an easy-to-handle height, making it easy to attach and detach the hoses. There is no.

〔Effect of the invention〕

Therefore, by making effective use of the original configuration, it was possible to simplify the overall configuration while maintaining a good weight balance in the left-right direction of the vehicle body, and by installing the water discharging section low to reduce the risk of water discharging. It has become possible to satisfy both of the following requirements: stabilization of the vehicle body, and to have excellent operability.

〔Example〕

Embodiments of the present invention will be described below based on the drawings.

As shown in FIG. 5, the illustrated water cannon truck includes a remotely controlled vehicle body A, a water cannon section B disposed at a location forward of the rear end of the vehicle body A, and a water cannon section B placed laterally at the rear end of the vehicle body A. It is equipped with four water receiving parts 1 arranged side by side, and a housing part C for four hoses 2 for connection to a pump truck (not shown) equipped with a tank and a water supply pump. However, 3 in the figure is a receiving frame for the water discharge part B.

Incidentally, each of the four hoses 2 is spirally wound along the vertical direction, and the lower end of each hose 2 is connected to the water receiving part C.
The upper end of will be connected to the pump truck. In other words, when performing water spraying work, after connecting each hose 2 to the water receiving part C or the pump truck, all of the hoses 2 are fed out to the outside of the car body A while the car body A is running, and in that state, the pump Water supply from the car will start and water will be discharged from the water discharge section B.

As shown in FIGS. 1 and 2, the vehicle body A has a vehicle body frame D made of square pipe material.
It is constructed by assembling various devices to the vehicle body frame D. That is, a driving unit E including an engine 4 and a radiator 5 is mounted on the front part of the vehicle body frame D, and a hydraulic continuously variable transmission device 6 for traveling and a transmission case 7 are attached to the rear part of the vehicle body frame D. A front wheel support case 9 that supports a pair of front wheels 8 so as to change their direction and houses a differential gear is attached to the front part of the vehicle body frame D.

The transmission case 7 accommodates a differential device for the left and right rear wheels 10, and a pair of left and right rear axle cases 11 that support the left and right rear wheels 10 in a manner that allows the orientation to be changed freely is attached to the transmission case 7. attached to.

The engine 4 and the hydraulic continuously variable transmission 6 are
The output of the continuously variable transmission 6 is connected to the transmission case 7 using a transmission shaft 12 with a universal joint.
The output is transmitted to the rear wheel differential device, and the output transmitted to the transmission case 7 is transmitted to the front wheel support case 9 using a transmission shaft 13 with a universal joint. It's getting old.

The pair of left and right front wheels 8 and the pair of left and right rear wheels 10
As shown in FIG. 4, the steering type is a parallel steering type in which the front and rear wheels 8, 10 are turned in the same direction, and are operated separately by a pair of front and rear steering hydraulic cylinders 14, 15. A four-wheel steering type that changes the direction of the front and rear wheels 8, 10 in opposite directions to make a sharp turn, and a two-wheel steering type that changes the direction of only the front wheels 8 can be used.

However, in this embodiment, a case is illustrated in which only the four-wheel steering type and the two-wheel steering type are used.

In the figure, 14A and 15A are control valves for the respective steering hydraulic cylinders 14 and 15, and 16 is an electric speed change motor for the continuously variable transmission 6.

The water discharge section B includes a discharge tube 17 for rod-shaped water discharge, a discharge tube 18 for spray water discharge, and these discharge tubes 17 and 18.
It can be broadly divided into a distal end portion, which includes a switching valve 19, etc., which allows water to flow selectively, and a proximal end portion. The base end portion is divided into a mounting base 20 that also serves as a water collection pipe, and a relay pipe section 21 that is rotatably attached to the mounting base 20.
The distal end portion is attached to the upper end of the holder so as to be able to swing vertically.

In the figure, 22 is a hydraulic motor for operating the switching valve 19, 23 is an electric motor for rotating the relay pipe section 21 using a worm mechanism, and 24 is a hydraulic motor for operating the switching valve 19 using a worm mechanism. This is an electric motor for swinging the tip end.

As shown in FIGS. 1 to 3, the left two of the four water receiving parts 1 are connected to the left water supply pipe 25L.
and the two on the right are connected to the water supply pipe 2 on the right.
Connected to 5R. And left and right water supply pipes 2
5L and 25R are distributed and arranged at both lateral sides of the vehicle body, and their front ends are connected to the lateral sides of the mounting base 20.

The storage section C of the hose 2 includes a main body 26 whose upper and rear parts are open, a sheet-like cover body 27 that is removably attached to the upper part of the main body 26, and a pair of left and right parts that close the rear part and can be pivoted open and closed. It is equipped with a door 28.

In addition, 29 in the figure is a water nozzle provided at the front part of the vehicle body A and both side parts of the vehicle body A.
is provided for cooling. Water is supplied to these water nozzles 29 from the water supply pipe 2 on the left side.
Water from a main pipe 30 connected to 5L is guided to each nozzle 29 by three branch pipes 31, respectively. However, numeral 32 in the figure is a manually operated pot.

Next, regarding the configuration for remotely controlling vehicle body A, the fourth
This will be explained based on the diagram.

That is, the steering hydraulic cylinder 1
A control device H is provided for giving operation commands to the control valves 14A, 15A and the variable speed motor 16, and a receiver 34 for receiving transmission information from a transmitter 33 is connected to the control device H. A potentiometer 35 that detects the orientation of the pair of front wheels 8, a potentiometer 36 that detects the orientation of the pair of rear wheels 10, and a vehicle speed detection potentiometer 37 that detects the position of the transmission arm 6a of the transmission 6. are established respectively,
Detection signals from the potentiometers 35, 36, and 37 are input to the control device H.

The transmitter 33 is provided with a vehicle speed lever 38 that commands a target vehicle speed by a longitudinal movement, and a steering lever 39 which commands a steering type by a longitudinal movement and a target steering position by a horizontal movement. The transmitter 33 is provided with various detection sensors for detecting the operation position and operation amount of each lever 38, 39, and a transmission device for transmitting detection information of the detection sensor to the receiver 34. be.

Therefore, the variable speed motor 16 is operated based on the vehicle speed command information from the transmitter 33 and the detection information of the vehicle speed detecting potentiometer 37 to reach the target vehicle speed. Steering type command information, steering position command information, and potentiometer 3 for detecting wheel direction.
Based on the detection information of 5 and 36, the control valve 14A,
15A, the steering wheel can be operated to a target steering position in a commanded steering style.

The transmitter 33 also includes a switch (S ₁ ) for operating the changeover valve 19, a switch (S 2 ) for rotating the water discharging section B, and a switch (S ₂ ) for operating the water discharging section B to swing it up and down. A switch (S ₃ ), an engine start switch (S ₄ ), and an engine stop switch (S ₅ ) are provided.

And those switches (S ₁ ), (S ₂ ), (S ₃ ),
Based on the command information from (S ₄ ) and (S ₅ ), the control device H controls the control valve 22A of the hydraulic motor 22 for valve operation, the electric motor 23 for swing operation, and the electric motor for swing operation. Motor 24, engine starting electric motor 40, and engine stopping electric motor 4
1, and is configured to output an operation command to each of them.

In short, the configuration is such that remote control can be used to switch between a rod-like water spray state and a spray water spray state, adjust the water spray direction, and start and stop the engine.

The vehicle body A is provided with a control box 42 which is used in place of the transmitter 33 and is connected to the control device H by an electric wire. The control box 42, like the transmitter 33, is equipped with levers and switches.
Further, the control box 42 is normally held in a storage box 43 provided in the vehicle body A, as shown in FIG. In the figure, reference numeral 44 indicates a switch for switching between a state in which the transmitter 33 is used for remote control and a state in which the control box 42 is used for control.

[Another example]

The present invention can also be applied to a type of water cannon vehicle that is driven by a passenger.

Furthermore, in the case where the water spray nozzle 29 is configured to be remotely controlled as in the above-described embodiment, the tip 32 for the water spray nozzle 29 may also be configured to be opened and closed by remote control.

In addition, various changes can be made to the configuration of each part necessary for carrying out the present invention.

Incidentally, although reference numerals are written in the claims section for convenient comparison with the drawings, the present invention is not limited to the structure shown in the accompanying drawings.

[Brief explanation of the drawing]

The drawings show an embodiment of the water cannon vehicle according to the present invention, in which Fig. 1 is a plan view of the piping structure of the water discharging part and the water receiving part, Fig. 2 is a side view of the same, and Fig. 3 is a diagram of the mounting base of the water discharging part. FIG. 4 is a schematic diagram showing the configuration of remote control, and FIG. 5 is a side view of the water cannon vehicle. 1...Water receiving part, 8...Front wheel, 10...Rear wheel, 1
7...Discharge tube for rod-shaped water discharge, 18...Discharge tube for spray water discharge, 19...Switching valve, 25L, 25R...
...Water supply pipe, A...Vehicle body, B...Water discharge section.

Claims (1)

[Scope of Claims] 1. A water cannon vehicle that is equipped with a water discharge section B at a location forward of the rear end of the vehicle body A, and a plurality of water receiving sections 1 at the rear end of the vehicle body A. A pair of left and right water supply pipes 25L and 25R connecting the water discharge part B and the water reception part 1 are distributed and arranged at both lateral sides of the vehicle body, and the rear ends of these water supply pipes 25L and 25R are connected to each other. A water cannon vehicle that branches horizontally and the water receiving section 1 is formed at the rear end of each branched pipe section. 2 The water discharge part B includes a discharge tube 17 for rod-shaped water discharge,
Discharge tube 18 for spraying water and those discharge tubes 1
The water cannon truck according to claim 1, further comprising a switching valve 19 that selectively allows water to flow through the channels 7 and 18. 3. The water cannon vehicle according to claim 1 or 2, wherein the water cannon section B is provided so as to be able to freely rotate and swing up and down. 4 The vehicle body A has a pair of left and right front wheels 8 that can be freely steered.
A water cannon vehicle according to any one of claims 1 to 3, comprising a pair of left and right rear wheels 10 that can be steered freely.