JPS6350199Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an obstacle detection device for an unmanned vehicle.

Conventionally, in this type of device, two elastic conductive plates were provided at the front of the vehicle body, the ends of which were connected via an electrical insulator, separated by a predetermined distance from the inside and outside, and curved into a semicircular shape. When it comes into contact with an obstacle, these two elastic conductive plates come into contact with each other and act as a switch. However, since these two elastic conductive plates are generally made of thin steel plates, they have the disadvantage that they come into contact with each other due to relatively large vibrations during normal running of the vehicle, causing a malfunction in which the vehicle stops.

The present invention aims to eliminate the above-mentioned drawbacks and provide an obstacle detection device for an unmanned vehicle that does not malfunction due to vibration.

Hereinafter, an embodiment of the present invention will be explained based on FIGS.
Two elastic conductive plates 3a and 3b whose ends are connected and supported via a , 3b, a small hole 4 is formed in the center of one of the two elastic conductive plates 3.
A small shaft 5 for preventing the conductive plate from shifting laterally, passing through the small hole in the front-rear direction, is fixed to the center of the other of the parts a and 3b so as to be electrically insulated.

In this embodiment, the small shaft 5 is connected to the outer conductive plate 3a.
The outer diameter of the small shaft 5 is fixed to the small hole 4 and the smaller hole 4 of the second electric insulator 6.
It is considerably smaller than the inner diameter of a. Reference numeral 7 denotes a screw for fixing the inner conductive plate 3b and the second electric insulator 6. Although not shown, it goes without saying that the insulator 6 can be fixed to the outer conductive plate 3a.

Next, to explain the effect, vibrations during normal driving of the vehicle are transmitted to the two elastic conductive plates 3a and 3b.
Since the small shaft 5 passes through the small hole 4 of one of the two elastic conductive plates 3a and 3b with a gap, mutual deflection in the lateral direction is limited until the small shaft 5 and the small hole 4a come into contact. It will be a small amount. However, the outer elastic conductive plate 3
When a contacts an obstacle and deforms inward, the small axis 5
moves inside the small holes 4, 4a in the axial direction, which is the front-rear direction, and the inner and outer elastic conductive plates 3a, 3b come into contact with each other to perform a switch action.

As is clear from the above description, the obstacle detection device of the present invention includes two elastic conductive plates, each having a small hole formed in the center thereof, and a conductive plate passing through the small hole in the front and back direction in the other center. Since the small shaft 5 for preventing lateral slippage is fixed in an electrically insulated manner, vibrations during normal running of the vehicle are absorbed by the two elastic conductive plates 3a,
3b, the amount of mutual vibration in the lateral direction is small until the small shaft 5 and the small hole 4a come into contact with each other, and it is possible to prevent malfunctions such as contact of the elastic conductive plates due to vibrations during normal running of the vehicle.

Furthermore, the distance between the two conductive plates 3a and 3b is maintained by the rigidity of the conductive plates themselves, and the small holes and small shafts are only for preventing the conductive plates from shifting laterally.
Since both are provided only at the center of the two elastic conductive plates, the number of parts is small and the structure is simple, which is an excellent effect.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of an unmanned vehicle equipped with an obstacle detection device, FIG. 2 is a plan view of the obstacle detection device of the present invention, and FIG. 3 is a detailed sectional view of the center of the obstacle detection device. 1... Vehicle body, 2... First electric insulator, 3a, 3
b...Elastic conductive plate, 4...Small hole, 5...Small shaft, 6
...Second electrical insulator.

Claims (1)

[Scope of utility model registration request] Two elastic conductive plates 3a and 3b whose ends are connected and supported at the front part of the vehicle body 1 via a first electric insulator 2 are separated from each other by a predetermined distance inwardly and outwardly due to their rigidity, and are curved into a semicircular shape. In addition to providing said 2
A small hole 4 is formed in the center of one of the two elastic conductive plates 3a, 3b, and a small hole 4 is formed in the center of the other of the two elastic conductive plates 3a, 3b to prevent the conductive plate from shifting laterally, passing through the small hole in the front-rear direction. An obstacle detection device for an unmanned vehicle, characterized in that a small shaft 5 is fixed in an electrically insulated manner.