Vibration absorber with dynamic damper
AssigneeKurashiki Kako Co., Ltd.
InventorKazuo Miyake
Life of this patent
Estimating the term…
Abstract
In an engine mount (A) whose axis (X) is oriented in the front to rear direction of a vehicle, a damper weight (12) is embedded within a toroidal stopper rubber (10) fixed at its inner periphery to the rear end of an inner cylinder (2). The damper weight (12) is made of, for example, steel plate to have a spiral form and placed to surround the inner cylinder (2), thereby itself functioning as a spring in the direction of the axis (X). This structure can ensure a necessary mass for the damper weight while saving space, and prevent the occurrence of an uncomfortable shock when a stopper works.
Claims4
A cylindrical vibration absorber that is formed by connecting an inner cylinder to an outer cylinder through an elastic element and is provided at least at one axial end with a stopper mechanism for restraining relative axial movement of the inner and outer cylinders to a predetermined amount or less, wherein
- the stopper mechanism has an annular stopper rubber with which any one of the inner cylinder, the outer cylinder and the elastic element is provided and which is placed to surround at least the inner cylinder, and
- a spiral damper weight is embedded within the stopper rubber to surround the inner cylinder in one or more turns, thereby forming an additional vibration system.
Dependencies are inferred from the claim text.