| 摘要 |
PURPOSE: A safety device of a high place operation car is provided to improve working speed and workability since an operator works in a relaxed condition. CONSTITUTION: A safety device of a high place operation car comprises a boom angle sensor(33), a boom rotation angular sensor(32), a boom length sensor(34), a load sensor, an outrigger length sensor(31) and a controller. The boom angle sensor is mounted on the boom in order to measure the horizontality angle of the boom of the frame. The boom rotation angular sensor is installed at the boom in order to measure the rotation angle of the boom. The boom length sensor is installed to the boom in order to measure the elasticity length of the boom. The load sensor is mounted on a basket of truck crane(20) in order to measure the load of the basket. The outrigger length sensor measures the projection length of the outrigger which is projected in order to support the frame to the ground. The controller controls the operation of a high place operation car by comparing an operate moment to a support moment. |
