To provide a vibration-proofing device which can sufficiently secure durability even if a load input into one direction and a load input into an opposite direction largely differ from each other.SOLUTION: In a vibration-proofing device 10, a main body rubber elastic body 16 is formed into a truncated conical shape, and a recess 34 opened at a lower face is provided. A center axis 22 of an inner member 12 is arranged while being decentered in an axial line orthogonal direction with respect to a center axis 32 of an outer cylinder member 14, a free length of the main body rubber elastic body 16 connecting the inner member 12 and the outer cylinder member 14 at one side in an eccentric direction, and a free length of the main body rubber elastic body 16 connecting the inner member 12 and the outer cylinder member 14 at the other side in the eccentric direction are made to differ from each other, a lower end of the inner member 12 is not exposed to the recess 34, and continuous rubber 40 making the main body rubber elastic body 16 at one side in the eccentric direction, and the main body rubber elastic body 16 at the other side in the eccentric direction continue to each other while cover the lower end of the inner member 12 are formed integrally with the main body rubber elastic body 16.SELECTED DRAWING: Figure 3
【課題】一方の向きに入力される荷重と反対向きに入力される荷重とが大きく異なる場合にも耐久性を充分に確保することのできる防振装置を提供する。【解決手段】防振装置10において、本体ゴム弾性体16が円錐台状であると共に下面に開口する凹所34が設けられており、インナ部材12の中心軸22がアウタ筒部材14の中心軸32に対して軸直角方向で偏心して配置されており、偏心方向の一方側においてインナ部材12とアウタ筒部材14を連結する本体ゴム弾性体16の自由長と偏心方向の他方側においてインナ部材12とアウタ筒部材14を連結する本体ゴム弾性体16の自由長とが、相互に異ならされていると共に、インナ部材12の下端は凹所34に露出しておらず、インナ部材12の下端を覆って偏心方向の一方側の本体ゴム弾性体16と偏心方向の他方側の本体ゴム弾性体16とを連続せしめる連続ゴム40が、本体ゴム弾性体16と一体的に形成されている。【選択図】図3
VIBRATION-PROOFING DEVICE
防振装置
2022-10-07
Patent
Electronic Resource
Japanese