Patent ID: 9010739
Filing Date: 2015-04-21
Classification: F16F

Abstract:
1. A vibration isolation device, comprising: a cylindrical inner cylinder member that is attached on one of a vibration generation body side or a vehicle body side; a bracket member that includes an insertion hole where the inner cylinder member is insertingly arranged, is formed of a resin material, and is attached on the other of the vibration generation body side or the vehicle body side; and a pair of vibration isolation leg parts formed of an elastic body with one end sides connected to the outer peripheral surface of the inner cylinder member and with the other end sides connected to the inner peripheral surface of the insertion hole, wherein a pair of external members is provided which is formed of a metal material, to which the other end sides of the pair of vibration isolation leg parts are vulcanizingly adhered respectively, and whose portions respectively embedded in the bracket member are engaged with the bracket member; the other end sides of the vibration isolation leg parts are connected to the inner periphery side of the insertion hole by engagement of the external members and the bracket member, wherein the external member includes: a base plate part to which the other end side of the vibration isolation leg part is vulcanizingly adhered; and an extended wall part extended from the outer edge of the base plate part toward the bracket member, formed continuously in the peripheral direction, and with at least two locations that oppose to each other engageably embedded in the bracket member, wherein a part of the bracket member is internally fit to the inner periphery side of the extended wall part.