PROBLEM TO BE SOLVED: To provide a vibration control bush for an axle beam device which is improved to allow assembly operation of a split housing with lightness equivalent to a conventional one even when a split direction of the housing and a split direction of the vibration control bush are orthogonal to each other.SOLUTION: A vibration control bush for an axle beam device comprises a central shaft 7, an outer body 11, and an elastic material 10 interposed therebetween. The outer body 11 comprises a pair of outer members 111 that are vertically split into two parts. The outer member 111 comprises: a bottom peripheral wall 11A enclosing the elastic material 10 in parallel to a shaft center P; and a pair of taper side peripheral walls 11B, 11B which are formed at both ends of the bottom peripheral wall 11A while enclosing large diameter flange parts 10B formed at both end parts of the elastic material 10 in a direction of the shaft center P, and have an angle in a direction in which a distance between both large diameter flange parts 10B, 10B increases toward the outside of the diameter. The outer member 11 is configured in an arc shape around the shaft center P. On an outer face 11a of the bottom peripheral wall 11A, a hard rubber skin layer 14 with a prescribed thickness is provided.
【課題】ハウジングの分割方向と防振ブッシュの分割方向とが直交する場合でも、従来と同等の軽快さで分割ハウジングの組付け操作が行えるように改善された軸はり装置用防振ブッシュを提供する。【解決手段】中心軸7と、外側体11と、これら両者間に介装される弾性材10とを有する軸はり装置用防振ブッシュにおいて、外側体11が、上下に2分割された一対のアウタ部材111からなり、アウタ部材111は、軸心Pと平行な状態で弾性材10を外囲する底周壁11Aと、弾性材10の軸心P方向の両端部に形成される大径フランジ部10Bに外囲して底周壁11Aの両端に形成され、かつ、径外側に行くほど両大径フランジ部10B,10Bどうしの間隔が広がる方向の角度が施される一対のテーパ側周壁11B,11Bと、を有して軸心Pを中心とする円弧形状のものに構成され、底周壁11Aの外面11aに、所定厚みの硬質ゴム製皮膜層14が設けられる。【選択図】図4
VIBRATION CONTROL BUSH FOR AXLE BEAM DEVICE
軸はり装置用防振ブッシュ
2015-09-28
Patent
Elektronische Ressource
Japanisch