| 摘要 |
A rubber mounting structure capable of controlling vibration constant is provided to easily damp the resonance of a cabin by providing two elastic forces with one rubber. A rubber mounting structure capable of controlling vibration constant is composed of a bracket(12) which is formed in a lower body(10) of a vehicle and has a through-hole(12a), a bolt(16) inserted in the through-hole of the bracket, a rubber(17) supporting an upper body(11) of the vehicle when fixing to the bracket, and a first nut(20) which is settled in a concave part(17b) of the rubber and is connected in a column(16a) of a bolt. If the tightening of the bolt and the first nut is completed, a vibration constant "k1" is formed in the outer rim of the concave part of the rubber. A vibration constant "k2" is formed in the concave part by tightening force of the first nut and the bolt.
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