JPS6175041A - Vehicle driving safety device - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] (-) Industrial application field
This relates to a running safety device for vehicles that prevents accidents in which the rear wheels of the vehicle come into contact with obstacles on the ground, such as people or bicycles.

(bJ Prior Art and Problems to be Solved) Conventionally, as a measure to prevent this type of accident, a protective frame is fixed to the side of the vehicle to prevent obstacles from entering directly in front of the rear wheels. However, when turning, the rear wheels pass further inward than the trajectory of the side protective frame, so there was a risk that obstacles outside the protective frame could also come into contact with the rear wheels. .

(C) Means for Solving the Problem The present invention provides a sensing device for sensing when an obstacle enters a dangerous area provided along the side of a vehicle, and a steering wheel, steering wheel, etc. A detection device is provided for detecting a predetermined steering amount on the dangerous area side of the steering device, and an alarm device is activated in conjunction with the operation of the sensing device and the detection device, and the vehicle is started or stopped. It is equipped with a safety device to prevent danger when turning equipment, etc.

(d) Effect In the present invention, when an obstacle enters the dangerous area while turning by operating the travel handle a predetermined amount in that direction,
Alarm is issued or driving.

The vehicle will stop starting.

(-) Embodiment and operation Hereinafter, one embodiment of the present invention will be described in detail with reference to the drawings.

In FIGS. 1 to 8, a vehicle 1 has front wheels of 3 degrees and rear wheels of 5 degrees.
5 and a driver's cab mounted on the frame 7. It consists of a loading platform 11.

A protection frame 13 is supported by a frame 7 along the outside of the vehicle 1, defining a dangerous area between a front wheel 3 and a rear wheel 5. A fuel tank 17 is attached to the front of the frame 7 on the side of the engine 15.1.

The protection frame 13 is provided with a sensing device 18 that senses contact with an obstacle on the ground, and is configured as follows. That is, as shown in FIGS. 3 to 5, frame 7
Bracket 21 by pol) 19.19 on the outside surface of
is fixed to the tip of the bracket 21, and a stepped pole) 2 is attached to the tip of the bracket 21.
The support rod 27 via the pivot joint 25 connected by 3
is pivotally mounted so that it can swing vertically. The support rod 27 is formed by bending downward at the side edge position of the vehicle 1, and horizontal rods 29, 29, 29 are fixed thereto. Support plates 31.31 are fixed to the lower surfaces of the bracket 21 and the support rod 27, respectively, with the rotation joint 25 in between, and the support plates 31 and 33 are connected by bolts 35 passing through the support plates 31.33. It restricts movement in the direction of increasing the gap. A bullet 37 is fitted into the port 35 and biases the support plates 31 and 33 in a direction that increases the distance between them. The support plate 31 has a switch 5W-1.
is fixed and operates by coming into contact with the support plate 33. Also, the support plate 33. , 33 are opposed to each other with an appropriate gap to restrict the swing range of the protection frame 13. FIG. 6 shows the steering device 39 of the vehicle 1, which is constructed as follows.

That is, a gear case 45 is provided at the lower end of the handle shaft 43 of the steering handle 41, and when the steering handle 41 is rotated, the worm wheel Fixed to shaft 47 f
The arm 49 is provided to swing in the front and back direction.

The power cylinder 51 has a shaft 53 attached to the frame 7 at the bottom.
The other end of the piston rod 59 is pivotally connected to the frame 7 by a shaft 61 to an arm 55 which is pivotally connected to the arm 55 so as to be swingable in the front-rear direction. The upper end of the connecting rod 63 is pivotally connected to the arm 49, and the other end is pivotally connected to the side surface of the power cylinder 51. When the steering handle 41 is rotated, the power cylinder 51 opens an internal operation valve (not shown) and expands or contracts in that direction by the hydraulic pressure of a hydraulic pump (not shown). The front axle 65 has shafts 69V attached to both ends of a crossbeam 67 attached to the lower front of the frame 7 via a bullet (not shown).
c, it is pivotally mounted so that it can freely rotate in the horizontal direction. The front wheels 3, 3 are rotatably supported on the left and right front axles 65.65, and are interlocked by rods 73 whose ends are pivotally connected to arms 71°71 projecting forward from the respective front axles 65.65. ing. One end of a connecting rod 77 is connected to the lower end of the arm 55 via a universal joint 75, and the other end is connected to the front axle 65.
It is connected via a universal joint 81 to an arm 79 that protrudes inward from the rear surface of the holder. The steering device 39 is provided with a detection device 82 for detecting the amount of steering, and is configured as follows. That is, a cam 83 centered on the worm wheel shaft 47 is fixed to the upper end of the arm 49, and comes into contact with the switch 5W-2 fixed to the frame 7.
When the worm wheel shaft 47 rotates by a predetermined amount, the switch 5
W-2 is provided to operate.

A safety device 84 is configured as follows in conjunction with the operation of the sensing device 18 and the detection device 82. That is, as shown in the air circuit diagram of FIG. 7, the pressurized air generated by the compressor fan 85 driven by the engine 15 passes through an air tank 87, and then passes through the control valves 89. The air passes through an electromagnetic valve 91, passes through a shuttle valve 93, and is sent to an air cylinder 95, which is provided to brake the front wheels 3.

The control valve 89 is a brake pedal (not shown) in the driver's cab 9.
It is linked to. In addition, as shown in the electrical circuit diagram No. 8, the current of the power supply 97 is controlled by the main switch MSWl switch fs.
The solenoid valve 91 is connected to the lunoid 5OL-11C via the relays R-1 and R-2 and the respective contacts r-1 and r-2 via W-1 and 8W-2.

In the above embodiment, when the vehicle 1 is running and the steering handle 41 is rotated in order to turn to the left, the arm 49 swings forward, and at the same time the cam 83 rotates and the switch 5W-2 is connected, relay R-2 is energized, and contact r
-2 connects. In this turning state, when an obstacle on the ground such as a person comes into contact with the protection frame 13, the support rod 27 swings against the ammunition 37, and the switch 5W-1 is connected and the relay R-1
is energized, contact r-2 is connected, and Nrenoid 5QL-1
is energized, the solenoid valve 91 is switched from the position a to the position b in FIG. 7, the air cylinder 95 is activated, and the front wheel 3.
is braked and vehicle 1 comes to a stop.

9 to 11 show other embodiments.

Instead of the sensing device 18 of the previous embodiment, the switch 5W irradiates infrared rays diagonally to the front and rear of the vehicle and detects the reflected light reflected from obstacles on the ground within a certain distance. -3 and 5W-4 are provided with photoelectric devices 99 and 101 for respectively operating them.

When the vehicle 1 starts turning by operating the steering handle 41 to the left, the switch 5W-2 is connected, the relay R-2 is energized, and the contact r-2 is connected.

If an obstacle on the ground such as a person crosses the irradiation beam of either the photoelectric device 99 or 101, the switch 5W-3
Or, either 5W-4 is connected, contact r-3 or r-4 is connected, and Renoid 5QL-1 is energized,
Vehicle 1 stops in the same manner as described above.

In this embodiment, photoelectric devices 99 and 101 are provided at the front and rear of the vehicle, but depending on the size and structure of the vehicle, only the photoelectric device 99 at the front or the photoelectric device 101 at the rear may be used. , a dangerous area with an open rear or front end may be formed.

(f) Effect of the invention Since the present invention has the structure as described in the claims,
This can prevent obstacles on the ground, such as people, from getting caught in the rear wheels when turning.

Note that an air control valve (not shown) is provided in place of the switch 8W-1 and the solenoid valve 91 of the first embodiment, and this air control valve is directly linked to the rocking movement of the protection frame 13 to control the brake. The pressure air for use may be controlled. Also, protective frame 1
3, an air bag with sealed air may be arranged in parallel, and when an obstacle on the ground comes into contact with the air bag and presses it, it may be provided so as to sense a change in the pressure of the air inside.

Note that the safety device may be provided to issue a warning to the driver and people on the ground.

Further, instead of the infrared photoelectric device shown in the embodiment, a device that emits other light beams, electromagnetic waves, vibration waves such as ultrasonic waves, and detects the reflected waves may be used.

The present invention is not limited to the embodiments described above, but can be implemented in other embodiments.

Note that the numerals shown in the claims do not limit the technical scope of the present invention.

[Brief explanation of the drawing]

@ Figures 1 and 2 are a side view, a plan view, and Figures 3 and 4, respectively, of a vehicle equipped with one embodiment of the present invention. Figure 5 is a front sectional view, plan view, and perspective explanatory view of the main parts, Figure 6 is a perspective view of other important parts, Figure 7 is an explanatory diagram of the air circuit, and Figure 8 is an explanation of the electric circuit. 9 and 10 are a side view, a top view, and a top view of a vehicle equipped with other embodiments, respectively.
FIG. 11 is an explanatory diagram of the electric circuit.

Claims (1)

[Claims] A sensing device 18 for sensing that an obstacle has entered a dangerous area provided along the side of the vehicle, and a steering device 39.
A detection device 82 is provided for detecting a predetermined steering amount on the danger area side, and the sensing device 18 and the detection device 82 are provided.
A running safety device for a vehicle, characterized in that it is provided with a safety device 84 for preventing danger during turning in conjunction with the operation of the vehicle.