| 摘要 |
PROBLEM TO BE SOLVED: To provide a hydraulic buffer capable of supplying electricity to an electric driving apparatus whose attachment position is not restricted from an exterior component such as a bracket.SOLUTION: A hydraulic buffer 100A includes: a cylindrical damper case 111; a cylindrical cylinder 113 disposed in the damper case 111; a cylindrical piston rod 131 slidably disposed on an inner peripheral surface of the cylinder 113, fixed on a piston 121 for partitioning the inside of the cylinder 113 and having a hollow part 131a; a needle valve 10 disposed in the damper case 111 on the opposite side to the insertion side of the piston rod 131 and capable of varying oil quantity by actuation and varying damping force; a motor 31 the whole body of which is disposed in the damper case 111 on the opposite side and capable of actuating the needle valve 10 by energization; and a feeder line 50A capable of supplying electricity from an external power source 900 to the motor 31 and extending in the hollow part 131a of the piston rod 131. |
