Anti-vibration device
AssigneeProspira Corporation
InventorNaoki Maeda
Life of this patent
Estimating the term…
Abstract
An anti-vibration device including an outer cylinder 10; a shaft member 20 that is provided in the outer cylinder 10; and an elastic member 40 that links the outer cylinder 10 and the shaft member 20, in which the shaft member 20 has an inner cylinder and four stopper portions 30a to 30d that protrudes from a circumferential surface of the inner cylinder toward the outer cylinder 10 and that are mutually provided at intervals in a circumferential direction, and in which the elastic member 40 links the outer cylinder 10 and the shaft member 20 at a position between stopper portions that are adjacent to each other in the circumferential direction.
Claims2
An anti-vibration device comprising:
- an outer cylinder;
- a shaft member that is provided in the outer cylinder;
- and
- an elastic member that elastically integrates the outer cylinder and the shaft member,
- wherein the shaft member has an inner cylinder and four stopper portions that protrude from a circumferential surface of the inner cylinder toward an outer side in a radial direction and that are mutually provided at intervals in a circumferential direction,
- wherein the elastic member elastically integrates the outer cylinder and the shaft member at a position between stopper portions that are adjacent to each other in the circumferential direction,
- wherein two stopper portions of the four stopper portions protrude in a vertical direction corresponding to a vibration direction of an object and remaining two stopper portions of the four stopper portions protrude in a front and back direction, and
- wherein, on a tip end of each of the remaining two stopper portions extending in the front and back direction, a widened part that protrudes downward is formed and a widened part that protrudes upward is not formed.
Dependencies are inferred from the claim text.