To provide a vibration absorbing device capable of improving durability of a vibration absorbing base.SOLUTION: A vibration absorbing base 13 is arranged via a gas chamber 24 at a first side in an axial line C direction to a restriction part 20 mounted on an inner peripheral surface of a first member 11 or a film part 14. Due to that the restriction part 20 projects to the inside in a radial direction than a corner part 19 of an inclined part 17 and a raised part 16 in the vibration absorbing base 13, the deformation of the vibration absorbing base 13 can be restricted by abutting the vibration absorbing base 13 on the restriction part 20 when a second member 12 is deviated to the first member 11 at least to a second side in the axial line C direction. With this, the vicinity of the corner part 19 of the vibration absorbing base 13 can be hardly buckled at the time of the deviation of the second member 12 to the second side so as to hardly generate cracks caused by buckling in the vibration absorbing base 13, and improve durability of the vibration absorbing base 13.SELECTED DRAWING: Figure 1
【課題】防振基体の耐久性を向上できる防振装置を提供すること。【解決手段】第1部材11の内周面または膜部14に取り付けられた規制部20に対し、軸線C方向の第1側に気体室24を介して防振基体13が配置されている。防振基体13における傾斜部17と立設部16との隅部19よりも径方向の内側へ規制部20が張り出しているので、第1部材11に対し第2部材12が少なくとも軸線C方向の第2側へ変位するときに、防振基体13を規制部20に当てて防振基体13の変形を規制できる。これにより、第2部材12の第2側への変位時に防振基体13の隅部19の近傍を座屈し難くできるので、座屈に伴うき裂を防振基体13に生じ難くでき、防振基体13の耐久性を向上できる。【選択図】図1
VIBRATION ABSORBING DEVICE
防振装置
2023-06-30
Patent
Electronic Resource
Japanese