| 摘要 |
PURPOSE:To enhance a vibration damping action by providing resistance plates to a cavity within a rubber body charged between an inner cylinder and an outer cylinder and having a fluid sealed in a vibratory section. CONSTITUTION:A rubber body 3 is vulcanized for adhesion to the surface of an inner cylinder 1, and a cavity 5 is formed annularly in the center portion held between inner plates 4. Resistance plates 8 are formed integrally on the inner cylinder 1, perpendicularly to the direction of excitation. A fluid such as a silicon oil is charged into the cavity 5 in a sealed condition. The fluid will produce a damping force, as the resistance plates 8 move, alike the resistance plates 8 being prevented from undergoing a flexure deformation by means of reinforcing fittings 10, and flow amount of a fluid corresponding to a relative displacement between the inner cylinder 1 and an outer cylinder 2 is secured so as to enable an efficient vibration damping to be obtained. |
