JPH0223491Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an automobile with left and right handles used for road delineation, etc.

For example, white lines are drawn at predetermined intervals to indicate traffic zones on expressways, and the white lines are drawn while being slowly driven by a dedicated work vehicle. This type of vehicle works while traveling along the right or left side of the road, so it is equipped with a set of driving devices on both the left and right sides, which can be used depending on the need.

By the way, there is no problem during work such as wire drawing because the speed is low, but during normal operation other than work, the weight of the vehicle is heavy, so manual operation requires a large amount of force and is easily tiring. For this reason, there is a strong demand for a so-called power steering device that uses another power source to expand the battery operating force.

However, unlike a normal vehicle with only one set of driving devices, this type of vehicle has two batteries on the left and right, a first driving device and a second driving device, regardless of whether it is running for operation or work. When one steering wheel is being operated, the other steering wheel must be inoperable; that is, only either the first driving device or the second driving device can be steered, and when driving, neither steering device can be operated. Both driving devices are powered by power steering, and when driving for work, it is necessary to remove the power steering from both driving devices and switch to normal steering operation. Conventionally, this requirement has not been met due to the complicated structure.

The present invention was developed with attention to the above-mentioned circumstances, and its purpose is to switch between the left and right driving devices, power steering operation of each battery, and normal operation without power steering of each steering wheel. The present invention aims to provide a completely new automobile with left and right batteries that enables reliable switching between three operating states with steering operation.

Hereinafter, one embodiment of the present invention will be described based on the drawings. In FIG. 1, along the vehicle width direction inside the vehicle interior (not shown), the first
A driving device 1 and a second driving device 2, which is a left driving device, are installed in parallel. The first operating device 1 is
It consists of a right handle 3, which will be described later, a first accelerator pedal 4, a first brake pedal 5, a first clutch pedal 6, etc., which are arranged in the footwell space.
Each pedal 4, 5, 6 is connected to known actuating components. The second driving device 2 also includes a left steering wheel 7, which will be described later, a second accelerator pedal 8, and a second brake pedal 9, which are disposed in the foot space.
and a second clutch pedal 10, etc.
Each pedal 8, 9, 10 is connected to the above-mentioned known actuating components. The pedals 4, 5, 6 of the first driving device 1 and the pedals 8, 9, 10 of the second driving device 2 are connected to known operating parts via switching members (not shown). It's getting old.
Further, a switching device 11 that is movable in the vehicle width direction is interposed between each of the driving devices 1 and 2, and is connected to the arm portion of each of the pedals 4, 5, 6, 8, 9, and 10 and disconnects from the system. engaging parts 12, 13, 14, 15, 16,
17 are provided. The above-mentioned engaging parts 12, 13, 14
When the switching device 11 is located on the side of the first driving device 1, it engages with the arm portion of each pedal 4, 5, 6, stops the displacement operation of the pedal, and locks the right steering wheel 3. When the switching device 11 is located on the second driving device 2 side, the engaging portions 15, 16, and 17 engage with the arm portions of the respective pedals 8, 9, and 10 to stop the displacement operation of the pedals, and also to stop the displacement of the pedals. Handle 7
It has become possible to lock the 18 is a spring that elastically urges the switching device 11 to be located on the side of the first driving device 1; 19 is a spring that maintains the switching device 11 in that position when it is located on the side of the second driving device 2; It is a fixing device that can easily release the holding state if necessary.
Further, a bracket 20 is attached to the switching device 11, and faces a switching switch 21 disposed on the second operating device 2 side of the bracket 20. That is, when the switching device 11 is displaced to the second driving device 2 side, the bracket 20 comes into contact and the changeover switch 21 is turned on, and when the switching device 11 is displaced to the first driving device 1 side, the bracket 20 is separated and turned off. . However, in the interior of this automobile, there are two sets of steering wheels and pedals, and electrical system switches (not shown) such as an instrument device, a starter relay circuit, a wiper operating circuit, a lamp circuit, etc. are located on the left and right sides, sandwiching the widthwise center of the vehicle. are provided for each.

The right handle 3 and left handle 4 are connected to first and second power steering mechanisms 22 and 23, respectively, as shown in FIG. Each of the power steering mechanisms 22 and 23 uses hydraulic pressure and is a so-called integral type in which the gear and cylinder are integrated, but even if it is a linkage type in which the gear and cylinder are separate bodies. good. The oil introduction port A of the first power steering mechanism 22 is connected to a switching valve 25 that constitutes the hydraulic circuit 24.
Linked to A port of. This oil outlet port R ₁ is linked to the oil tank 27 of the hydraulic feeding device 26 . Further, the power steering mechanism 22 is provided with a first hydraulic pressure release circuit 28 that releases the hydraulic pressure applied within this cylinder as necessary. That is, the first hydraulic release circuit 28 has a first electromagnetic on-off valve 29 consisting of a two-way electromagnetic valve in the middle, and closes the circuit 28 only when excited, and the right handlebar 3
becomes the power steering state. When it is not excited, the circuit 28 is opened and the oil in the cylinder of the power steering mechanism 22 is guided to lower the oil pressure and the power steering becomes unusable.
In other words, when the first electromagnetic on-off valve 26 is not excited, the right steering wheel 3 can be used for normal steering operation. The oil introduction port B of the second power steering mechanism 23 communicates with the B port of the switching valve 25. This oil outlet port
R ₂ communicates with the oil tank 27 of the hydraulic feeding device 26 . Further, the power steering mechanism 23 is provided with a second hydraulic release circuit 30, and a second electromagnetic on-off valve 31 consisting of a two-way electromagnetic valve provided in the middle.
When energized, the circuit 30 is opened and the left steering wheel 7 enters the power steering state. When it is not excited, the hydraulic pressure is released to cancel the power steering, and the left steering wheel 7 can be operated normally. Note that the switching valve 25
The P port communicates with the discharge side of the pressure pump 32 of the hydraulic feed device 26. The suction side of the pressure pump 32 is connected to the oil tank 27. Further, the switching valve 25 is a three-way slide solenoid valve, and when energized, the P port communicates with the B port, and when not energized, the P port communicates with the A port.

The switching valve 25, the first and second electromagnetic on-off valves 2
9 and 31 are connected to an electric circuit as shown in the figure. That is, the changeover switch 21 and the operation switch 24 provided inside the vehicle are connected in parallel from the battery 33 which is a power source, and these are connected to the relay 35.
connected to. To explain, the changeover switch 21 is connected to the drive power coil 35a side of the relay 35,
The operation switch 34 is connected to the P contact side of the relay 35. In addition, the normally closed contact A of the relay 35 connects to the blue lamp 36 provided in the instrument panel of the passenger compartment and the first contact point A of the relay 35.
It is connected to the first electromagnetic on-off valve 29 of the hydraulic release circuit 28 . Contact B of the relay 35 connects to a red lamp 37 provided on the instrument panel in the passenger compartment and the hydraulic circuit 24.
switching valve 25 and the second hydraulic release circuit 30
The second electromagnetic on-off valve 31 is connected to the second electromagnetic on-off valve 31.

However, during normal driving, the operation switch 3
Close 4. At this time, for example, when the driver is sitting in the right driver's seat and uses the first driving device 1, the elastic force of the spring 18 is applied to the switching device 11 to displace it to the second driving device 2 side and switch to the left steering device. 7 and each of the second pedals 8, 9, and 10 are all fixed. Bracket 20 is switch 2
1 and turn it off, the normally closed contact A of the relay 35 is connected, and the blue lamp 36 lights up. That is, the driver knows that the first driving device 1 can be used and is in the power steering state. At this time, the first hydraulic release circuit 28
The first electromagnetic on-off valve 29 will be excited, and this circuit 28 will be in a closed state. Furthermore, since the switching valve 25 of the hydraulic circuit 24 is not excited, the P port and the A port communicate with each other. Therefore, the pressure-feeding oil of the pressure-feeding pump 32 is guided from the oil introduction port A of the first power steering mechanism 22 to the cylinder,
The oil returns to the oil tank 27 from the oil outlet port _R1 . on the other hand,
Second electromagnetic on-off valve 31 of second hydraulic release circuit 30
Since the power steering mechanism 23 is not excited, the hydraulic pressure is released and the power steering mechanism 23 does not operate. In the end, only the first driving device 1 can be used, and the power steering operation of the right steering wheel 3 is obtained.

When the driver is sitting in the left driver's seat, the second driving device 2
When using spring 1, switch device 11
8, the right handle 3 and the second pedals 4, 5,
6 are all fixed. Bracket 20 contacts changeover switch 21 to turn on, and relay 35 connects to contact B. Then, the red lamp 37 lights up and the driver can use the second driving device 2.
And know that the power steering is on.
At this time, the second electromagnetic on-off valve 31 of the second hydraulic release circuit 30 is excited, and this circuit 30
becomes a closed state. The switching valve 25 is also excited, and the P port is switched to communicate with the B port.
Therefore, the pressure-fed oil from the pressure-feeding pump 32 is led to the cylinder from the oil introduction port B of the second power steering mechanism 23, and returns to the oil tank 27 from the oil lead-out port _R2 . On the other hand, since the first electromagnetic on-off valve 29 of the first oil release circuit 22 is not energized, the power steering mechanism 22 does not operate because the oil pressure is released. In the end, only the second driving device 2 can be used, and the power steering operation of the left steering wheel 7 is obtained.

Further, when driving for work such as line drawing work, delicate steering operation is required, so the steering operation is switched to normal steering operation. That is, the operation switch 34 is opened. Therefore, relay 3
5, the driving power is not supplied to the blue and red lamps 36,
37 remains off, and the first and second electromagnetic on-off valves 29, 31 are not excited. The first and second hydraulic pressure release circuits 28 and 30 release the hydraulic pressure of each power steering mechanism 22 and 23, so that neither the right nor the left handlebars 3 and 7 enter the power steering state.
Normal steering operation. Even if the pressure pump 32 operates to forcefully feed oil to the first power steering mechanism 22, the right handle 3 does not enter the power steering state. In addition, the driver
Depending on whether the driver is sitting on the right driver's seat or the left driver's seat, the driving device 1 or 2 on the seated side can be used, and the other driving devices cannot be used, just as in normal driving.

In the above embodiment, the first and second hydraulic release circuits 28 and 30 were provided with separate first and second electromagnetic on-off valves 29 and 31, respectively, but the present invention is not limited to this. As shown in FIG. 3, switching may be performed using an integrated on-off valve 38 having first and second electromagnetic on-off valve functions.

As explained above, according to the present invention, the first and second driving devices are provided along the vehicle width direction of the vehicle to enable driving control of only one of the driving devices, and the drive device is connected to the steering wheel of these driving devices. The first and second power steering mechanisms are connected to a hydraulic circuit having a switching valve to put either one in a power steering state, and each power steering mechanism has a first and a second electromagnetic on-off valve. Two hydraulic pressure release circuits were provided, and the relay was switched by the changeover switch signal to cancel the power steering state and switch to normal steering operation, and the operation switch opened each hydraulic pressure release circuit at the same time.
It has three driving operation functions: switching the steering wheel operation for either the left or right driving device, and switching each steering wheel between power steering mode and normal steering operation as needed, such as during normal driving and work driving. This has the effect of allowing easy switching and improving operability.

[Brief explanation of the drawing]

Fig. 1 is a schematic perspective view of an operating device showing one embodiment of the present invention, Fig. 2 is a circuit diagram showing both a hydraulic circuit and an electric circuit, and Fig. 3 is a partial circuit diagram showing another embodiment. be. 1...First driving device, 2...Second driving device, 3...Right handle, 7...Left handle, 22
...First power steering mechanism, 23...Second power steering mechanism, 26...Hydraulic pressure sending device, 24...Hydraulic circuit, 25...Switching valve, 28...
...First hydraulic release circuit, 30...Second hydraulic release circuit, 29...First electromagnetic on-off valve, 31...Second
33...battery, 35...relay, 21...changeover switch, 34...operation switch.

Claims (1)

[Scope of utility model registration request] first and second driving devices that are arranged in parallel along the width direction of the automobile and can be switched so that only one of them can control the driving;
The first and second power steering mechanisms are connected to the handles of the driving device, respectively, and the first and second power steering mechanisms and the hydraulic transmission device are communicated with each other to apply hydraulic pressure to each handle to bring the handles into a power steering state. a hydraulic circuit; a switching valve mounted on the hydraulic circuit and communicating with either the first power steering mechanism or the second power steering mechanism; and the first and second power steering mechanisms, respectively. first and second hydraulic pressure release circuits that are provided and release the hydraulic pressure to eliminate the power steering state; and first and second hydraulic pressure release circuits that are respectively implemented in the first and second hydraulic pressure release circuits First and second electromagnetic on-off valves that are opened and closed to cut off communication, one end of which is connected to the battery, and the other end of which is either the first electromagnetic on-off valve, the switching valve, or the second electromagnetic on-off valve. A relay connected to one of the batteries, an operating switch inserted between the relay and the battery, and a changeover switch that switches the relay in conjunction with switching operations of the first and second operating devices. ,
When the operation switch is released, the first and second
When the power steering state of both the power steering mechanisms is canceled and the operation switch is closed, the first power steering mechanism or the second power steering mechanism is operated in conjunction with the switching operation of the first and second operation devices. An automobile with a left and right steering wheel, characterized in that only one of the power steering mechanisms is configured to be in a power steering state.