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US 10,864,936 B2Granted
Worm wheel of electric power steering apparatus
AssigneeMando Corporation
InventorKee Woong Sung
Life of this patent
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Abstract
A worm wheel of an electric power steering apparatus includes: an inner wheel coupled to a steering shaft; an outer wheel disposed outside an outer circumference of the inner wheel and having a plurality of teeth on an outer circumferential surface to be engaged with a worm of a worm shaft; and a damper interposed between the inner wheel and the outer wheel.
Claims18
A worm wheel of an electric power steering apparatus, comprising:
- an inner wheel coupled to a steering shaft;
- an outer wheel disposed outside an outer circumference of the inner wheel and having a plurality of teeth on an outer circumferential surface to be engaged with a worm of a worm shaft;
- and
- a damper interposed between the inner wheel and the outer wheel,
- wherein an inner diameter of the damper is smaller than an outer diameter of the inner wheel,
- wherein the damper comprises:
- a body comprising at least one protruding portion protruding outward in a radial direction and having a ring shape;
- and
- a fixing part disposed on at least any one side of an outer side or an inner side of the body and configured to fix the inner wheel and the outer wheel to the body, and
- wherein an outer circumferential surface of the protruding portion is disposed between an outer circumferential surface and an inner circumferential surface of the inner wheel and spaced apart from the outer circumferential surface of the inner wheel.
7 more elements
Dependencies are inferred from the claim text.