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US 6,743,105 B2Granted
Damper assembly
AssigneeNSK-Warner K.K.
InventorHiroshi Yabe
Life of this patent
Estimating the term…
Abstract
A damper assembly includes a driving member, a coil spring, a driven member drivable by the driving member via the coil spring, and dividers by which the coil spring is divided into a number of spring sections. The relative rotation between the driving member and the driven member via the coil spring is limited by the engagement between one or more engageable portions arranged on the driving member at predetermined locations and the corresponding engageable portions arranged on the driven member at predetermined locations.
Claims4
A damper assembly comprising:
- a drive plate;
- a driven member, wherein the driven member is rotatable relative to the drive plate;
- a damper mechanism including
- a spring,
- a spring seat on the drive plate, and
- a spring seat on the driven member, wherein the spring is disposed between the spring seat on the drive plate and the spring seat on the driven member;
- a stopper mechanism including:
- an engageable portion on the drive plate, and
- an engageable portion on the driven member, wherein the relative rotation between the drive plate and the driven member is limited by engagement between the engageable portion on the drive plate and the engageable portion on the driven member, wherein the damper mechanism and the stopper mechanism are arranged in the same plane that is normal to an axis of the driven member;
- front and rear covers;
- and
- a retainer cover, wherein the front, rear and retainer covers form a sealed hollow space in which the drive plate, spring, and driven member are disposed, and wherein the sealed hollow space is filled with a viscous medium such that viscous damping resistance is applied to the relative rotation between the drive plate and driven member.
9 more elements
Dependencies are inferred from the claim text.