Vibration isolating apparatus
AssigneeBridgestone Corporation
InventorsTakuya Dan, Tatsuro Ishiyama
Life of this patent
Estimating the term…
Abstract
A vibration isolating apparatus having a support shaft connected to either one of a vibration generating portion and a vibration receiving portion, a base member connected to the other of the two, and a resilient member interposed between the base member and the support shaft and deformable in response to the movement of the support shaft in a direction substantially perpendicular to the axis thereof. A stopper is provided on the side of the support shaft which is remote from a vibration absorbing liquid chamber for limiting the movement of the support shaft. Accordingly, even when a load acts on the support shaft and the base member in a direction in which they are pulled away from each other, the support shaft can reliably be supported by way of the stopper.
Claims19
A vibration isolating apparatus comprising:
- a support shaft which is able to be connected to either one of a vibration generating portion and a vibration receiving portion;
- a base member which is able to be connected to the other of said vibration generating portion and said vibration receiving portion;
- a resilient member interposed between said base member and said support shaft and deformable in response to movement of said support shaft in a direction which is substantially perpendicular to the longitudinal axis of said support shaft;
- a vibration absorbing liquid chamber defined between said base member and said resilient member and disposed on one of two side which oppose each other across the longitudinal axis of said support shaft;
- and
- first stopper means defined by a bent portion of a bracket which is a part of said base member, said first stopper means being disposed on the other of said two sides of said support shaft for limiting the movement of said support shaft.
A vibration isolating apparatus comprising:
- a support shaft connected to either one of a vibration generating portion and a vibration receiving portion;
- a base member connected to the other of said vibration generating portion and said vibration receiving portion, said base member including a base plate having a bottom surface and a wall portion which rises from the periphery of said bottom surface, a hollow outer tube having one axial end portion thereof rigidly secured to a distal end portion of the wall portion of said base plate, and a bracket having a U-shaped cross-section which is rigidly secured to a second axial end portion of said outer tube, said base member being constituted by said base plate, outer tube and bracket so as to define a closed space;
- a resilient member disposed within a U-shaped space in said bracket, pierced with said support shaft, and deformable in response to movement of said support shaft in a direction substantially perpendicular to the axis of said support shaft;
- a vibration absorbing liquid chamber defined between said base member and said resilient member and provided on one of two sides opposing each other across the axis of said support shaft;
- and
- a first stopper provided on the other of said two sides of said support shaft for limiting the movement of said support shaft in said direction.
Dependencies are inferred from the claim text.