Patent ID: 6158536
Filing Date: 2000-12-12
Classification: A61G,B62D,Y10S

Abstract:
A stair-climbing vehicle for transporting a wheelchair with a person sitting on, the stair-climbing vehicle comprising:a crawler device including a pair of endless belt crawlers disposed on opposite sides of the vehicle;a vehicle body including a driving motor for driving the crawler device to enabling the stair-climbing vehicle to climb up or down a stairway;a load-carrying platform for mounting a wheelchair, said load-carrying platform being provided above the vehicle body capable of pivoting about a horizontal axis relative to said vehicle body;wherein the vehicle body and the load-carrying platform are connected with each other through an electrical cylinder, the load-carrying platform being provided with an inclination sensor;wherein the inclination sensor includes a first inclination sensing element and a second inclination sensing element, each inclination sensing element is a tubular member containing a flowable electrically conductive material and a pair of electrically conductive terminals; andwherein when said inclination sensor is in operation, said electrical cylinder operates to pivot said load-carrying platform in response to an operation signal output by either of said first and second inclination sensing elements, andwhen said load-carrying platform is horizontal and said inclination sensor is in operation, one of said first and second inclination sensing elements always operates to output an operation signal to thereby operate said electrical cylinder.