| 摘要 |
PURPOSE:To absorb the vibration produced in time of idling, by costituting an engine setting device in a way of forming an air chamber in a state of loose fitting with a bush between the bush being fitted in a shaft and a setting block, while installing a rubber body which is jaggedly engaged with this air chamber, in case of the engine setting device for construction machinery and equipment. CONSTITUTION:An annular rubber body 10 is fitted in a small diameter part 8a of a shaft 8 via a bush 9 and then a block 11 is installed in this rubber body 10. The rubber body 10 is constituted so as to cause a projecting piece 9a of the bush 9 to be loosely fitted in its cave-in part 13 and to form an air chamber 14 inside the cave-in part 13. With such formation of the air chamber 14 in vertical directions, cohesion between the bush 9 and the rubber body 10 is secured excepting that, whereby a spring constant in vertical direction is made to be smaller and vertical vibrations in time of idling are absorbed, and simultaneously in time of clearing an obstacle, etc., the spring constant grows large due to contact with the projecting piece 9 and the cave-in part 13, absorbing the impact force. Thus, driving comfortableness can be improved. |
