Self-traveling type car-washing machine

Abstract

A self-traveling car washing machine advantageously enabling the automization of steering operation. The car washing machine comprises a steering means for changing the traveling direction of a frame (11) to which wheels (14) are fitted and on which a car washing brush (16) is rotatably supported and a resistance force detection means detecting a resistance force produced on the car washing brush (16) by the press-contact of the car washing brush on the outer peripheral surface (57) of a vehicle body to be washed. The car washing machine also comprises a self-traveling direction control means which, when a value detected by the resistance force detection means comes over a pre-set allowable range, travels the frame (11) in a direction apart from the outer peripheral surface (57) of the vehicle body and, when the detected value comes under the pre-set allowable range, travels the frame (11) in a direction close to the outer peripheral surface (57) of the vehicle body.

Description

technical field [0001] The invention relates to a self-propelled car washing machine, in particular to an improved structure of a self-propelled car washing machine which uses a car washing brush to wash the outer peripheral surface of the vehicle body while automatically walking along the outer peripheral surface of the vehicle body. Background technique [0002] Conventionally, as one type of car washing device, there is a device having a door-shaped main body frame, and one car washing brush is rotatably attached to a plurality of opposing pillar portions of the main body frame. As already known, the main body frame is guided by two rails to automatically walk along the front and rear direction of the car to be washed, or the car is driven in a way to pass through the main frame, so that the main frame and the car Perform relative movement. Then, the car washing brush in the rotating state at this time is pressed against the outer peripheral surface of the automobile to ...

AI Technical Summary

Problems solved by technology

[0007] However, in such a structure, when adopting, for example, an optical distance sensor etc. as the distance sensor, if the light-emitting part or the light-receiving part of the distance sensor, or on the optical path between them, adheres or floats water foam, mud, etc., then May not be able to measure the correct distance

Therefore, in a self-propelled car washer having a conventional structure using such a distance sensor, it is difficult to control the traveling direction of the car washer to travel along the outer peripheral surface of the car body to be washed stably and with high accuracy.

Images