| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a working machine control device capable of relieving shock (impact) of a working machine cylinder at the stroke end thereof and also capable of reducing the working time of the working machine performed by the working machine cylinder. <P>SOLUTION: This working machine control device comprises the working machine cylinder W, a supply circuit 31 supplying pressure oil to the working machine cylinder W, a return circuit 32 returning the pressure oil from the working machine cylinder W, and a regeneration circuit 33 returning a part of the pressure oil in the return circuit 32 to the supply circuit 31. The control device allows switching between a slow mode for operating the working machine cylinder W without passing the regeneration circuit 33 and a fast mode for operating the working machine cylinder W through the generation circuit 33. A control to switch to the slow mode without passing the regeneration circuit 33 is allowed while the working machine cylinder W is operated in the fast mode. <P>COPYRIGHT: (C)2004,JPO</p> |
