| 摘要 |
PURPOSE:To prevent the occurrence of excessive displacement by forming a plurality of fluid chambers which are communicated with one another through an orifice, between an outer cylinder member and an inner cylinder member, providing a pin for the inner cylinder member in the direction normal to a shaft, and thereby coupling the pin into the recessed section of a stopper member disposed in the fluid chamber. CONSTITUTION:One fluid chamber 4 is formed in such a way that both an outer cylinder 1 the inner circumference of which is formed with seal rubber, and an metallic inner cylinder 2 integrally provided with a pin 21 are provided, and a depression is concurrently formed in an elastic member 3 between the inner cylinder 2 and a frame cylinder 11. In addition, the other fluid chamber 4 is provided between the frame cylinder 11 and the outer cylinder 1 so as to be communicated with the aforesaid fluid member through an orifice 51 and incompressible fluid is then filled therein. A stopper member 6 is provided within the fluid chamber 4, so that the pin 21 is coupled in the recessed section of the stopper member 6 with intervals provided. When excessive displacement takes place, the stopper member abuts against surrounding members, so that excessive deformation is thereby prevented. The pin is perpendicular to the axial direction of a shaft while it keeps its positional relation constant even to any displacement in the oblique direction, so that the stopper is operated as it is set. |
