| 摘要 |
PURPOSE: A position correction device for increasing lifting force is provided to increase the lifting force by correcting the angles of a positioning cylinder and an arm cylinder close to 90 degrees. CONSTITUTION: A position correction device for increasing lifting force comprises a positioning sensor (110), an arm sensor (120), and a controller (130). The positioning sensor detects the current position of a second boom powered by a positioning cylinder (41). The arm sensor detects the current position of an arm powered by an arm cylinder (51). The controller corrects the included angle between the axis of the positioning cylinder and the connection line between the front end of the positioning cylinder and the connection point of first and second booms to nearly 90 degrees within a limited range. [Reference numerals] (110) Positioning sensor; (120) Arm sensor; (130) Controller; (140) Lift mode selecting unit; (41) Positioning cylinder; (51) Arm cylinder
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