Piston assembly of shock absorber
AssigneeMando Corporation
InventorsWan Sang Park, Jun Sik Shin
Life of this patent
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Abstract
Provided is a piston assembly of a shock absorber, which is simple in structure and is easy to fabricate. The piston assembly of the shock absorber includes: a piston body in which a piston rod reciprocating within a cylinder penetrates a central portion thereof, and a plurality of compression passages and a plurality of rebound passages alternately penetrating the piston body are formed around the piston rod; a compression retainer placed over the piston body, in which a plurality of connection holes corresponding to the compression passages penetrate the compression retainer; and a rebound retainer placed under the piston body, in which a plurality of connection holes corresponding to the rebound passages penetrate the rebound retainer.
Claims9
A piston assembly of a shock absorber, comprising:
- a piston body penetrated at a central portion thereof by a piston rod which reciprocates within a cylinder of the shock absorber, and a plurality of compression passages and a plurality of rebound passages alternately penetrating the piston body are formed around the piston rod;
- a compression retainer placed over the piston body, in which a plurality of connection holes corresponding to the compression passages penetrate the compression retainer;
- and
- a rebound retainer placed under the piston body, in which a plurality of connection holes corresponding to the rebound passages penetrate the rebound retainer, wherein
- a lower end of a compression passage is an inlet;
- an upper end of a rebound passage is an inlet;
- and
- cross-sectional areas of the inlets of the compression passage and the rebound passage are larger than cross-sectional areas of outlets of the compression passage and the rebound passage,
- wherein the compression retainer comprises a step-shaped protrusion squared out therefrom, which is inserted into an inlet of at least one rebound passage among the plurality of rebound passages.
Dependencies are inferred from the claim text.