Abstract: An anti-vibration sleeve comprising an inner strength member and an outer strength member connected by an elastomeric body. Two hydraulic chambers, defined between the elastomeric body and the outer strength member, are connected by a throttled channel and by a bypass channel which is normally closed by a flap belonging to the elastomeric body. An intermediate strength member, embedded in the elastomeric body, has two rings connected by a first spacing member disposed in register with the bypass channel. The first spacing member has two supporting portions separated by an opening which is in register with the flap.

Abstract: An anti-vibration device including first and second rigid strength members interconnected by an elastomer body, the first strength member includes a base and at least three branches extending from the base along a first direction toward the second strength member, the three branches including two external branches and one central branch. The second strength member includes a transversal portion and at least two branches extending along the first direction from the transversal portion, respectively between the external branches and the central branch of the first strength member. The elastomer body extends transversally to the first direction between the external branches of the first strength member and has four legs extending respectively between the branches of the first strength member and the branches of the second strength member.