Damper for washing machine
First Claim
1. A damper for a washing machine, comprising:
- a cylinder and a piston interactively coupled to each other in a state wherein the cylinder is connected to a tub and the piston is connected to a base;
a first friction member fixed around the piston to frictionally move in direct contact with an inner peripheral surface of the cylinder for generating a frictional force when the piston moves inside the cylinder;
a slider coupled inside the piston inside the cylinder so as to move together with the piston if the piston moves beyond a predetermined displacement range; and
a second friction member fixed around the slider to frictionally move in direct contact with an inner peripheral surface of the cylinder for generating a frictional force when the slider moves inside the cylinder.
1 Assignment
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Accused Products
Abstract
Disclosed herein is a damper for washing machines. The damper comprises a cylinder and a piston interactively coupled to each other in a state wherein the cylinder is connected to a tub and the piston is connected to a base, a first friction member provided around the piston for generating a frictional force when the piston moves inside the cylinder, a slider coupled to the piston inside the cylinder so as to move together with the piston if the piston moves beyond a predetermined displacement range, and a second friction member provided around the slider for generating a frictional force when the slider moves inside the cylinder. The damper configured as stated above generates different damping forces according to the vibration degrees of the tub, thereby effectively attenuating the vibration of the tub.
7 Citations
20 Claims
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1. A damper for a washing machine, comprising:
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a cylinder and a piston interactively coupled to each other in a state wherein the cylinder is connected to a tub and the piston is connected to a base; a first friction member fixed around the piston to frictionally move in direct contact with an inner peripheral surface of the cylinder for generating a frictional force when the piston moves inside the cylinder; a slider coupled inside the piston inside the cylinder so as to move together with the piston if the piston moves beyond a predetermined displacement range; and a second friction member fixed around the slider to frictionally move in direct contact with an inner peripheral surface of the cylinder for generating a frictional force when the slider moves inside the cylinder. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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19. A damper for a washing machine, comprising:
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a cylinder connected to one of a tub and a base; a piston interactively coupled to the other one of the tub and the base not connected with the cylinder; a first friction member provided around the piston so as to frictionally move in direct contact with an inner peripheral surface of the cylinder for generating a frictional force; a slider inserted into the piston inside the cylinder so as to move relatively; a second friction member provided around the slider so as to frictionally move in direct contact with the inner peripheral surface of the cylinder for generating a frictional force; and interlocking means provided at both the piston and the slider for allowing the slider to move together with the piston if the piston moves beyond a predetermined displacement range.
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20. A damper for a washing machine, comprising:
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a cylinder and a piston interactively coupled to each other in a state wherein the cylinder is connected to a tub and the piston is connected to a base; a first friction member fixed around the piston to frictionally move in direct contact with an inner peripheral surface of the cylinder for generating a frictional force when the piston moves inside the cylinder; a slider coupled inside the piston inside the cylinder so as to move together with the piston if the piston moves beyond a predetermined displacement range and to move with the cylinder when the piston is located in the predetermined distance range; and a second friction member fixed around the slider to frictionally move in direct contact with an inner peripheral surface of the cylinder for generating a frictional force when the slider moves inside the cylinder.
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Specification