| 摘要 |
PURPOSE:To make it possible to insure a large working stroke by arranging a duplex cylinder-like bellows between an inner cylinder and a housing, in the housing in which the inner cylinder fitted with a piston-like part is provided, and providing an opening part on its end part through which the inner cylinder can be inserted. CONSTITUTION:An inner cylinder 5 is concentrically provided within a cylindrical housing 11, and a piston-like part 16 having a damping force generating means 17 with an orifice and the like is slidably fitted in the inner cylinder. An oil passage 21 is formed in a hollow rod 20 built in the piston-like part 16, and connected with a hydraulic unit 23 through pipings 22. Further, a bellows unit 30 consisting of an outer bellows 31, an inner bellows 32, and an end member 33 blockading their end parts, is arranged between the inner circumferential surface of the housing 11 and the outer circumferential surface of the inner cylinder 15 within the housing 11, and the inner cylinder 15 can be inserted through an opening part 34 formed in the center part of the end member 33. |
