Importance

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Abstract

A shock absorber including a cylinder, a piston, a piston rod, and a damping passage communicating an expansion-side chamber with a compression-side chamber, includes a pressure chamber formed by a cylindrical housing provided on the expansion-side chamber side of the piston rod from the piston and a piston holder to which the piston is mounted and which closes the opening of the housing, a free piston slidably inserted inside the housing and which divides the pressure chamber into an expansion-side pressure chamber communicating with the expansion-side chamber via an expansion-side channel and a compression-side pressure chamber communicating with the compression-side chamber via a compression-side channel, and a spring element that generates energizing force for restraining displacement of the free piston with respect to the pressure chamber.

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First Claim