| 摘要 |
<p>PURPOSE:To absorb the relative angle of torsion of both members and to reduce the torque by rotating a rotary piston via the work fluid body inside a cylinder at the time when an excess torque acted on a pair of the members located on the same axis. CONSTITUTION:When the rotation in clockwise direction is transferred by by a pair of the driving shaft 25 and driven shaft 24 located on the same axis, the valve communicating to the suction and exhaust port 22c at the side increasing the volume with the rotation of a rotary piston 23 is released, a hydraulic oil is fed to a cylinder chamber 22b from the suction and exhaust port 22d at the opposite side, the rotary piston 23 is rotated in counterclockwise direction and press-welded to a stopper part 22a. In this state a transmission shaft 25 is rotated in clockwise direct ion and when the pressure of the hydraulic oil inside the cylinder chamber 22b communicating to the suction and exhaust port 22d side according to the size of the torque rises, and the set pressure of a relief valve is exceeded, the hydraulic oil is flowed out into the cylinder chamber 22b from the suction and exhaust port 22d, the rotary piston 23 is rotated in counterclockwise direction for a cylinder 22 and the relative angle of torsion of both transmission shafts 24, 25 is absorbed.</p> |
