| 摘要 |
PROBLEM TO BE SOLVED: To allow horizontal movement to be smoothly operated by eliminating arm drift.SOLUTION: In a cargo carrier having a pantographic arm and preventing horizontal drift of the arm by an air cylinder connecting a body part and the arm, the cargo carrier includes a control unit sensing an arm distal end position by an angle of the first am and an angle of the second arm and variably changing an air supply pressure of the air cylinder for preventing the arm drift in accordance with the arm distal end position and a cargo weight. A variable area during movement from an area indicating a position to another area is provided, and the air pressure of the air cylinder is variably changed to perform horizontal balancing. |
