To provide an auto-tensioner, capable of even preventing fluttering of a belt effectively, obtaining a large damping force and moreover enabling a non-directional installment, without the risk of leakage of working oil.
Besides a auto-tensioner 1 has the outside face 3 of the cylinder in order to contacts with the belt 2, it has a belt guide body 4 that is supported rotatably with respect to the directions A and B, having a rotation center X2 which is eccentric only by a distance δ to a center X1 of the outside face 3 of the cylinder, a shaft body 5 that rotatably supports the belt guidance body 4 in the directions A and B with the rotation center as X2, a means 6 for giving elasticity that power the belt guidance body elastically so as to make the belt guidance body 4 rotate in the direction of A with the rotation center X2 and a damping means 8 that damps the rotation in the B direction of the belt guide body 4.
| WO/2017/105303 | SHOCK ABSORBING ARRANGEMENT CONFIGURED TO WITHSTAND IMPACT SHOCK |
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| JP4360466 | Rubber bearing device |
HARADA YOSHIHIRO
IGARASHI YOSHITERU
Next Patent: BELT TENSION SYSTEM