| 摘要 |
PURPOSE:To sufficiently the vibration toward many directions, by arranging three fluid chambers partitioned with walls made of a rubber elastic material and connecting each chamber through a throttle hole. CONSTITUTION:Arranging a shaft member 4 in a cylindrical peripheral wall 3 made of a metallic plate and forming thick side walls 5a, 5b made of rubber elastic material between both end openings of the peripheral wall 3 and the shaft mamber 4, the inside of the peripheral wall 3 is closed tightly. Then, by partitioning equally the space enclosed with partition walls 6a, 6b, 6c made of a rubber elastic material, the shaft member 4 and the inner circumference surface of the peripheral wall 3 are connected radially, and the enclosed space is formed into triangular fluid chambers 7a, 7b, 7c. Furthermore, after radially forming throttle holes 8a, 8b, 8c connecting with each other at the radial center of the shaft on the axial center portion of the shaft member 4 and making them commonicate with fluid chambers 7a, 7b, 7c respectively, a fluid is enclosed in the chambers. Thereby, the vibration can be damped effectively. |
