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US 2014/0231201 A1Published application
Shock absorber
AssigneeHitachi Automotive Systems, Ltd.
InventorsATSUSHI MAEDA, MASARU KOUYAMA, MIKIO YAMASHITA, FUMIYUKI YAMAOKA
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Abstract
A shock absorber has an inclined surface that is inclined to a moving direction of the free piston in at least one of a free piston contact surface of a free piston with which an elastic body is in contact and a housing contact surface of a housing with which the elastic body is in contact. A shortest distance between the free piston contact surface and the housing contact surface is changed by movement of the free piston.
Claims3
A shock absorber comprising:
- a cylinder in which a working fluid is enclosed;
- a piston which is provided in the cylinder and configured to partition an interior of the cylinder into two chambers;
- a piston rod which is connected to the piston and arranged so as to extend to an exterior of the cylinder;
- a first passage to which the working fluid flows out from one of the chambers of the interior of the cylinder with movement of the piston;
- a damping force generation mechanism which is installed in the first passage and configured to generate a damping force;
- a housing;
- a free piston which is movable to the housing;
- a second passage which communicates between the space formed by the housing and the free piston and one of the chambers of the interior of the cylinder, and in which the working fluid flows with movement of the piston;
- and
- an elastic body which is disposed between the free piston and the housing,
- wherein one of the free piston and the housing is formed so that the elastic body is compressive deformed in both a moving direction of the free piston and a different direction from the moving direction.
8 more elements
Dependencies are inferred from the claim text.