| 摘要 |
<p>A check chain for operating a length of the check chain is provided to reduce a manufacturing cost and to improve convenience in use, and to reduce vibration between a working machine and a tractor through a cushion control part. A check chain for operating a length of the check chain includes: a traction part(20); a load part(10); and a body part(50) for adjusting an interval between a tractor and a working machine by the traction part and a length adjusting unit. The length adjusting unit comprises a screw thread formed on the outer periphery of the traction part, a pressure member having a connection pole connected to the screw thread and a pressure plate connected to one side of the connection pole, and fluid embedded in a first fluid room between the pressure member and load part. The length adjusting unit has a fixing pin(40) connected to a fixing projection(50b) of the body part and a fixing hole of the traction part.</p> |
