JPH06155B2 - Sprinkler - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a vehicle body for water spraying, in which a pair of left and right front wheels and a pair of left and right rear wheels are turned in opposite directions to change operation. The present invention relates to a water discharge vehicle in which a water discharge unit including a discharge cylinder is provided so that its turning can be adjusted.

[Conventional technology]

Such a water discharge vehicle is mainly used for fire fighting, and is generally connected to a pump vehicle including a tank and a water supply pump by a hose, and water is injected from a water discharge portion to a desired location. In addition, in general, the vehicle is loaded on another vehicle (often used as a pump vehicle) for transportation.

By the way, in order to freely adjust the swirling of the water discharge part, conventionally, it has been generally possible to swivel over 360 degrees.
(A conventional document cannot be described.) [Problems to be solved by the invention] When water is discharged from the water discharge part, a large reaction force accompanying water discharge acts on the vehicle body as a falling moment. For this reason, in the past, in order to receive the reaction force due to water discharge when the water discharge part was directed in the front-rear direction of the vehicle body, not only was the wheelbase made larger, but the water discharge part was oriented in the horizontal width direction of the vehicle body. Since the tread was also made large in order to receive the reaction force to the water discharge of, the whole body would be large. As a result, a large vehicle has to be prepared as a vehicle for transporting the water discharge vehicle, and the configuration of the entire equipment required for water discharge becomes expensive and there is a disadvantage that mobility is deteriorated.

By the way, it is possible to increase the weight of the car body by attaching weights to the car body in order to reduce the tread, but in that case, as the weight of the car body increases, as a vehicle for transporting the water spray truck You will have to prepare a large one that can carry. As a result, in this case as well, the structure of the entire equipment required for water discharge becomes expensive, and maneuverability deteriorates.

The present invention has been made in view of the above circumstances, and an object thereof is to reduce the size and weight of a vehicle body while suppressing a fall.

[Means for solving problems]

The characteristic configuration of the water discharge vehicle according to the present invention is that a regulation means is provided for regulating the swing adjustment range of the water discharge part which is swing-adjustable with respect to the vehicle body only to the setting range on the front side of the vehicle body.
Its action and effect are as follows.

[Action]

That is, a vehicle body capable of maneuvering by manipulating the pair of left and right front wheels and the pair of left and right rear wheels in opposite directions
Focusing on the fact that the direction of the vehicle body can be efficiently changed by turning with the steering, effectively utilizing that,
The turning adjustment range of the water discharge part is restricted to the setting range on the front side of the vehicle body.

That is, the direction of water discharge is adjusted by turning the vehicle body and turning the water discharge portion within the set range.

〔The invention's effect〕

Therefore, since the water discharge part is not adjusted to the width direction of the vehicle body, it is not necessary to increase the tread or the vehicle body weight as long as the wheelbase is set to have a sufficient distance. It is possible to reduce the size of the vehicle body and reduce the weight of the vehicle body.
The vehicle for transporting the water discharge vehicle can also be small in size, which is effective in simplifying the overall equipment for water discharge and improving the mobility.

〔Example〕

 Embodiments of the present invention will be described below with reference to the drawings.

As shown in FIGS. 4 to 7, the illustrated water discharge vehicle includes a remotely controlled vehicle body (A), and a remotely controlled water discharge portion (B) is provided at an intermediate portion in the front-rear direction of the vehicle body (A). And a storage section (C) for four water receiving hoses (2) at the rear of the vehicle body (A), and the storage section (C) communicates with the water discharge section (C) below the storage section (C). It has four hose connections (1) to be connected. However, in the figure (3)
Is a receiving frame of the water discharge part (B).

The four hoses (2) are folded so as to be folded back in the front-rear direction of the vehicle body in a state where two hoses (2) are superposed on each other. Then, one end of each hose (2) is connected to the hose connecting portion (1), and the other end is connected to a pump vehicle (not shown) equipped with a tank and a water supply pump.

Also, at the rear end of the housing portion (C) of the hose (2), the vehicle body (A)
A hose feeding port (K) for feeding the hose (2) backward as the vehicle runs is opened.

In other words, when performing the water discharge work, with the hose (2) connected to the hose connection part (1) and the pump car, run the car body (A) while the entire hose (2) is in the car body (A). Of water from the pump car, and then the water supply from the pump car is started.
Water will be released from (B).

Hereinafter, each part will be described in detail.

As shown in FIG. 7, the vehicle body (A) is provided with a vehicle body frame (D) formed by framing a square pipe material, and various devices are attached to the vehicle body frame (D). That is, in the front part of the body frame (D), an engine (4) and a driving part (E) including a radiator (5) are mounted, and the body frame (D)
A hydraulic hydraulic continuously variable transmission (6) and a transmission case (7) are attached to the rear part of the rear wheel to support a pair of left and right front wheels (8) in a freely changeable direction, and to support a differential device. The case (9) is attached to the front part of the body frame (D).

The mission case (7) is for accommodating a differential device for the left and right rear wheels (10), and supports a pair of left and right rear axle cases (11) for supporting the respective left and right rear wheels (10) in a direction changeable manner. Is attached to the mission case (7).

The engine (4) and the hydraulic continuously variable transmission (6) are interlockingly connected using a transmission shaft (12) with a universal joint, and the output of the continuously variable transmission (6) is inside the mission case (7). To the rear wheel differential and the transmission case
The output transmitted in (7) is the transmission shaft with universal joint (13).
Is transmitted to the front wheel support case (9).

As shown in FIG. 1, the pair of left and right front wheels (8) and the pair of left and right rear wheels (10) have front and rear steering hydraulic cylinders (1).
It is operated separately in 4) and (15), and the front and rear wheels are
Parallel steering type in which (8) and (10) are turned in the same direction, four-wheel steering type in which the front and rear wheels (8) and (10) are turned in opposite directions to make a sharp turn, and front wheels (8) only It is possible to use a two-wheel steering system that changes the direction of.

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

In the figure, (14A) and (15A) are steering hydraulic cylinders (14) and
The control valve for (15) and (16) are electric variable speed motors for the continuously variable transmission (6).

The water discharge part (B) includes a discharge pipe (17) for rod-shaped water discharge, a discharge pipe (18) for spray water discharge, and a switching valve () for selectively flowing water to the discharge pipes (17), (18). It is roughly divided into a distal end side portion composed of 19) and the like and a proximal end side portion. And the base end side part is
It is divided into a mounting base 20 also serving as a water collecting pipe and a relay pipe part (21) rotatably mounted on the mounting base 20, and the tip end side portion vertically swings at the upper end of the relay pipe part (21). It is installed freely.

In the figure, (22) is a hydraulic motor for operating the switching valve (19), and (23) is a relay pipe section (21) using a worm mechanism.
A turning hydraulic motor for turning operation of (4) is a turning hydraulic motor for rocking the tip side portion using a worm mechanism.

As shown in FIG. 6 and FIG. 7, the left two of the four hose connection parts (1) are connected to the left water supply pipe (25L), and the right two are right. It is connected to the water supply pipe (25R). The left and right water supply pipes (25L) and (25R) are distributed and arranged on both lateral side portions of the vehicle body, and the front end thereof is the mounting base (2L).
It is connected to the lateral side of (0).

As shown in FIG. 6, the housing (C) of the hose (2) includes a bottom wall (26a), left and right side walls (26b), and a front side wall (26b).
The sheet-like cover body (27) covering the upper part is detachably provided, and the door (28) for opening and closing the hose outlet (K) is a horizontal axis on the upper end side. It is pivoted around the core (X) so that it can be opened and closed.

Incidentally, reference numeral (29) in the figure is a watering nozzle provided on the front part of the vehicle body (A) and on both lateral sides of the vehicle body (A), and is provided for cooling the vehicle body (A). And those watering nozzles (29)
Water supply to the main (3L) connected to the water supply pipe (25L) on the left side.
Water from (0) is supplied to each nozzle by three branch pipes (31).
He is led to (29). However, (32) in the figure
It is a manually operated cock.

Next, a configuration for remotely controlling the vehicle body (A) will be described with reference to FIG.

That is, the steering hydraulic cylinders (14), (15)
A control device (H) for giving a differential command to the control valves (14A) and (15A) and the speed change motor (16) of the vehicle is constituted by using an electronic device, and receives the transmission information from the transmitter (33). Receiver for control
(34A) is connected to the control device (H). A pair of front wheels
A potentiometer (35) for detecting the orientation of (8), a potentiometer (36) for detecting the orientation of the pair of rear wheels (10), and
A vehicle speed detecting potentiometer (37) for detecting the position of the speed change arm (6a) of the speed change device (6) is provided respectively, and the detection signals of the potentiometers (35), (36), (37) are respectively controlled.
It has been entered in (H).

The transmitter (33) is provided with a vehicle speed lever (38) for instructing a target vehicle speed by forward / backward movement, and a steering lever (39) for instructing a steering type by forward / backward movement and also instructing a target steering position by left / right movement. Provided are various detection sensors for detecting the operation position and operation amount of each lever (38), (39), and a transmission device for transmitting the detection information of the detection sensor to the receiver (34). It is provided in the container (33).

Therefore, based on the vehicle speed command information from the transmitter (33) and the detection information of the vehicle speed detection potentiometer (37), the transmission motor (1
6) is configured to be differential, so that it can be operated to the target vehicle speed,
Further, based on the steering type command information and the steering position command information from the transmitter (33) and the detection information of the wheel orientation potentiometers (35) and (36), the control valve (14
By operating A) and (15A), it is possible to operate to the target steering position in the commanded steering mode.

The transmitter (33) includes a switch (S ₁ ) for switching operation of the switching valve (19), a switch (S ₂ ) for turning operation of the water discharge section (B), and the water discharge section. A switch (S ₃ ) for vertical swing operation of (B) is provided, and information of these switches (S _{1 to} S ₃ ) is also transmitted. On the other hand, a water discharge part control receiver (34B) for transmitting the transmission information from the transmitter (33) is provided, and this receiver (34B) is also connected to the control device (H).

Then, based on the command information from the switches (S ₁ ), (S ₂ ), (S ₃ ), the control device (H) causes the control valve (22A) of the hydraulic motor (22) for valve operation, The turning hydraulic motor (2
Control valve (23A) of 3) and hydraulic motor (24) for rocking operation
It is configured to output an operation command to each of the control valves (24A).

In short, by remote control, it is possible to switch between a rod-shaped water discharge state and a spray water discharge state and adjust the water discharge direction.

A control box (40) used in place of the transmitter (33) is provided on the vehicle body (A) in a state of being connected to the control device (H) by an electric wire. Its control box (42)
Like the transmitter (33), is equipped with levers and switches. Further, the control box (42) is normally held inside the vehicle body (A). In the figure, (41) is the transmitter
It is a switch for switching between the state of remote control at (33) and the state of control at the control box (40).

A regulation means (Z) is provided for regulating the turning adjustment range of the water discharge part (B) only to the setting range (for example, 90 degrees) on the front side of the vehicle body.

That is, as shown in FIG. 2, the switch (42A) that is turned off as the water discharger (B) reaches the right end of the setting range, and the water discharger (B) is in the setting range. A switch (4
2b) is a control valve (23) for the turning hydraulic motor (23).
(A) is incorporated into the drive circuit, and as the water discharge part (B) reaches the end of the setting range, the forward rotation solenoid part (a) and the reverse rotation solenoid part (b) of the control valve (23A). Is configured to stop energization to.

In the figure, (43a) and (43b) are relays that are selectively actuated based on the forward or reverse rotation command from the control device (H).
Reference characters a) and (44b) are relay switches operated by the relays (43a) and (43b).

Both switches (42a), (42b) are, as shown in FIG.
It is incorporated in a switch case (46) provided with a switch operating member (45) that is biased to return to a neutral position, and is configured as a so-called limit switch as a whole. When the switch operating member (45) is swung to one side by the first stopper (47a), the switch (42a) on one side is turned off, and the switch operating member (45) is moved to the second stopper. (47b)
When it is swung to the other side at, the switch (42b) on the other side is turned off. When the switch case (46) is mounted on the mounting base (20) side, the first and second stoppers (47a), (47b) are mounted on the central pipe portion (21) side, and conversely, When mounting the switch case (46) on the side of the relay pipe (21), attach the first and second stoppers (47a) and (47b) to the mounting base (2
The switch operating member (45) is attached to the (0) side and the switch operating member (45) is rockably operated as the water discharger (B) turns.

[Another embodiment]

 The present invention can also be applied to a water discharge vehicle of a boarding type.

Further, when the remote control type is used as in the above embodiment, it is preferable that the engine (4) can be started and stopped by remote control.

The restricting means (Z) can be variously changed according to the turning operation structure of the water discharge part (B).

It should be noted that reference numerals are added to the claims for convenience of comparison with the drawings, but the present invention is not limited to the structures of the accompanying drawings by the entry.

[Brief description of drawings]

The drawings show an embodiment of a water discharge vehicle according to the present invention, FIG. 1 is a block diagram showing a configuration of remote control, FIG. 2 is a circuit diagram of a regulating means, and FIG. 3 is a schematic diagram showing a configuration of a limit switch,
FIG. 4 is a side view of the water discharge vehicle, FIG. 5 is a schematic plan view of the same, and FIG.
FIG. 7 is a side view showing the internal structure of the water spray truck, and FIG. 7 is a plan view of the same. (8) …… Front wheel, (10) …… Rear wheel, (17), (18) …… Discharge cylinder,
(23) …… hydraulic motor, (23A)… control valve, (A) …… vehicle body,
(B) ………… Water discharge part, (Z) …… Regulatory means.

Claims (2)

[Claims] 1. A pair of left and right front wheels (8) and a pair of left and right rear wheels (1)
(0) The vehicle body (A) that can be steered freely by changing the direction to the opposite direction.
A water discharger in which a water discharge part (B) having discharge pipes (17), (18) for water discharge is provided so as to be adjustable in turning.
The water spray vehicle is provided with a restriction means (Z) for restricting the turning adjustment range of (B) only to the setting range on the front side of the vehicle body. 2. The water discharge part (B) is configured to be swung by a hydraulic motor (23), and the regulating means (Z) causes the water discharge part (B) to reach the end of the set range. Accordingly, the water wheel according to claim 1, which is configured to stop energization of the control valve (23A) of the hydraulic motor (23).