| 摘要 |
PURPOSE:To allow an elevator to travel along a vertical wall regardless of unevenness on the wall without hindrance, by combining a sucker device supporting a body of the elevator, a travelling arm having a sucker, a drive means and a control means therefor to search and select a forward area by the travelling arm. CONSTITUTION:A vacuum pump is started to supply pressurized air to an air cylinder related to an arm having a sucker and thereby to compensate a sucker position by swinging the arm forwardly and rearwardly as well as rightwardly and leftwardly. This operation is carried out until the degree of suction of the sucker reaches a desired value, wherein the operation of the other cylinders 8, 8a, 19 and 19a may occur simultaneously with the swinging motion of the air cylinder 14. Namely, the position of the sucker may be selected by conducting the swinging motion and changing an angle between the arm and an arm mounting rod or an angle between the arm mounting rod and a housing of the body. |
