To provide a vibration control device capable of successively changing a spring constant over a wide range without relying on regulation by the contact with a stopper or the like.
While one end side of a rubber link 18 is supported in a shaft 42 of a bracket 12, the other end side of the rubber link 18 is supported in a shaft 52 of a torque rod 14. The torque rod 14 is supported in the bracket 12 by two support springs 20 for maintaining an initial position. When the torque rod 14 is pulled by an engine, an angle of the rubber link 18 with respect to the torque rod 14 is changed. By so doing, the torque rod 14 acquires energizing force to the engine side from two rubber links 18. As a result, a spring constant of the entire vibration control device can be suppressed to a low level. When the torque rod 14 is displaced to the engine side, the support spring 20 on the engine side is compressed so that the rubber link 18 starts extending longer than the free length. By so doing, the spring constant of the entire vibration control device is sharply increased.
Kato Kazunori
Katsuichi Nishimoto
Hiroshi Fukuda