| 摘要 |
PURPOSE:To obtain an effective combination of a vibration absorbing effect and a vibration restricting effect by a direct adhering by vulcanizing of a rubber or a rubberlike vibration absorber of a resilient material having a plurality of recesses and a groove communicating these recesses to inner and outer cylinders. CONSTITUTION:The vibration absorber 3 having two recesses (a) and (b) each opened at one end or both ends by which the releasing after molding is facilitated and a groove 4' which communicates these recesses is secured to the inner and outer cylinders 1 and 2 by direct adhering by vulcanizing. The outer peripheral surface of the vibration absorber 3 exluding the parts of recesses (a) and (b) and groove 4' which are molded by the arrangement of a die piece and die disc and including the entire periphery on the lefthand in the drawing and the inner peripheral surface thereof are vulcanized and adhered to the inner surface of the outer cylinder 2 and the outer surface of the inner cylinder 1 respectively at the same time of the vulcanizing and molding of the vibration absorber itself. After this molding process, the vibration absorber 3 thus jointed with the inner and outer cylinders is pulled out of the die. Then a vibration restricting liquid is poured into the recesses (a) and (b) and groove 4', which are sealed with a rubber sealing ring 5 thereafter. |
