Damper
First Claim
Patent Images
1. A damper, comprising:
- a housing having a cylindrical shape and an inner peripheral surface, viscous fluid filled in the housing, a rotor portion rotatably supported inside the housing, fin portions situated outside the rotor portion and having ends facing the inner peripheral surface of the housing, and deformable portions formed at each of the fin portions for changing a distance between the end of each fin portion and the inner peripheral surface of the housing according to a resistance of the viscous fluid when the rotor is rotated, to thereby provide a resistance without being substantially affected by viscosity of the viscous fluid.
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Accused Products
Abstract
A damper includes a housing having a substantially cylindrical shape and filled with viscous fluid; a rotor portion rotatably supported inside the housing; fin portions projecting from the rotor portion; and deformable portions provided in the fin portions for changing a clearance between an end of the fin portion and an inner peripheral surface of the housing in response to resistance received\ed from the viscous fluid. The deformable portion is provided in the fin portion to allow the fin portion to deform elastically in response to the resistance received from the viscous fluid, and to change the clearance between the end of the fin portion and the inner peripheral surface of the housing.
47 Citations
12 Claims
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1. A damper, comprising:
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a housing having a cylindrical shape and an inner peripheral surface, viscous fluid filled in the housing, a rotor portion rotatably supported inside the housing, fin portions situated outside the rotor portion and having ends facing the inner peripheral surface of the housing, and deformable portions formed at each of the fin portions for changing a distance between the end of each fin portion and the inner peripheral surface of the housing according to a resistance of the viscous fluid when the rotor is rotated, to thereby provide a resistance without being substantially affected by viscosity of the viscous fluid. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A damper, comprising:
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a housing having a cylindrical shape and an inner peripheral surface, viscous fluid filled in the housing, a rotor portion rotatably supported inside the housing, fin portions situated outside the rotor portion, and extension portions provided at the fin portions, each extension portion being formed at one lateral side of each fin portion and having an end facing the inner peripheral surface of the housing for changing a distance between the end of the extension portion and the inner peripheral surface according to a rotational direction of the rotor portion. - View Dependent Claims (12)
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Specification