| 摘要 |
<p>A hydraulic buffer (20) comprises a cylinder (22), a piston (24) disposed slidably in the cylinder (22) to partition the interior of the cylinder (22) into first and second liquid chambers (A, B), a piston rod (26) connected with the piston (24) and having a first path (36) communicating to the first liquid chamber (A) and a second path (38, 78, 90) communicating to the second liquid chamber (B) and a control rod (42) disposed in the piston rod (26). A regulating valve (46, 92) operated by the control rod (42) is disposed in the first path (36) and has a third path (50, 94) capable of affording communication between the first and the second paths (36, 38, 78, 90). The buffer further comprises a case (56, 80, 96) fixed on an outer peripheral surface of the piston rod (26) in the second liquid chamber (B) and having a fourth path (58, 98) affording communication between the second path (38, 90) and the second liquid chamber (B) and a check valve (60, 82, 104) provided in association to the fourth path.</p> |
