To provide a vibration isolation device with a novel structure that can stably hold a stopper member as a different body in an accommodation recessed place even before being mounted on a vehicle etc., while suppressing an influence of the stopper member on vibration isolation performance.SOLUTION: A vibration isolation device 10 which has a stopper member 14 as a different body accommodated in an axially-open accommodation recessed place 34 is provided with a fall stopping part 42 which protrudes to an inner circumference at an opening part of the accommodation recessed place 34. A stopper member 14 having a substantially quadrangular outer shape is provided with lip-like parts 56 which protrude from four corner parts to an outer circumference, and the lip-like parts 56 are positioned in the accommodation recessed place 34 inside the fall stopping part 42, and overlap the fall stopping part 42 when axially projected. A rod insertion hole 46 is formed axially through the stopper member 14, and a pair of opposite-side parts 52, 52 of an outer peripheral surface of the stopper member 14 are elongated from an inner circumferential surface of the accommodation recessed place 34 to the inner circumference in a region where they spread to both outer sides of the rod insertion hole 46 between the lip-like parts 56, 56.SELECTED DRAWING: Figure 2
【課題】防振性能に対するストッパ部材の影響を制御しつつ、車両等への装着前にも別体のストッパ部材を収容凹所に安定して保持可能とした、新規な構造の防振装置を提供する。【解決手段】軸方向に開口する収容凹所34に別体のストッパ部材14が収容された防振装置10において、収容凹所34の開口部分には、内周へ突出する抜止部42が設けられている。外形が略四角形とされたストッパ部材14には四角部分から外周へ突出するリップ状部56が設けられており、リップ状部56が、抜止部42よりも奥方で収容凹所34内に位置して、抜止部42と軸方向の投影において重なり合っている。ストッパ部材14にはロッド挿通孔46が軸方向に貫通形成されており、ストッパ部材14の外周面における一対の対辺部分52,52が、リップ状部56,56の間におけるロッド挿通孔46の両外側まで広がる領域で、収容凹所34の内周面から内周へ離隔している。【選択図】図2
VIBRATION ISOLATION DEVICE
防振装置
11.06.2024
Patent
Elektronische Ressource
Japanisch
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