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US 10,865,597 B2Granted
Furniture part and damping device thereof
AssigneesKing Slide Works Co., Ltd., King Slide Technology Co., Ltd.
InventorsKen-Ching Chen, Hsiu-Chiang Liang, Chun-Chiang Wang
Life of this patent
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Abstract
A damping device includes a housing and a piston. The housing has an inner wall, and a chamber is defined by the inner wall. The chamber has a damping medium filled therewith. The piston is movable in the chamber, wherein the inner wall has a plurality of inner diameters.
Claims15
A damping device, comprising:
- a housing having an inner wall, a top portion having an opening and a bottom portion being a closed end, a chamber being defined by the inner wall and having a damping medium filled therewith, wherein the inner wall has a first inner diameter, a second inner diameter and a third inner diameter, the first inner diameter is greater than the second inner diameter, the second inner diameter is greater than the third inner diameter;
- a piston movable in the chamber along a substantially linear direction;
- wherein the chamber between the piston and the top portion of the housing defines a first zone, the chamber between the piston and the bottom portion of the housing defines a second zone, the damping medium is filled in the first zone and the second zone, and the first zone communicates with the second zone;
- a base connected to the piston through an extending portion, both of the base and the piston comprising a passage respectively for allowing the damping medium to pass through, such that the first zone communicates with the second zone;
- and
- a spring directly connected to the base, the spring being configured to provide an elastic force to one of the piston and the base;
- wherein the spring and the base are located in the second zone, when the damping device is providing a damping effect, the piston is moved from a position in the housing with the first inner diameter to a position in the housing with the second inner diameter or from the position in the housing with the second inner diameter to a position in the housing with the third inner diameter.
4 more elements
A damping device, comprising:
- a housing having an inner wall, a top portion having an opening and a bottom portion being a closed end, a chamber being defined by the inner wall and having a damping medium filled therewith, wherein the inner wall has a first inner diameter, a second inner diameter and a third inner diameter, the first inner diameter is greater than the second inner diameter, the second inner diameter is greater than the third inner diameter;
- a piston movable in the chamber, wherein the chamber between the piston and the top portion of the housing defines a first zone, the chamber between the piston and the bottom portion of the housing defines a second zone, the damping medium is filled in the first zone and the second zone;
- a base connected to the piston through an extending portion, both of the base and the piston comprising a passage respectively for allowing the damping medium to pass through, such that the first zone communicates with the second zone;
- a controller disposed between the passage of the base and the passage of the piston;
- and
- a spring directly connected to the base, wherein the spring is configured to provide an elastic force to one of the piston and the base, the spring and the base are located in the second zone;
- wherein the controller is movably mounted to the extending portion;
- wherein when the damping device is providing a damping effect, the piston is moved from a position in the housing with the first inner diameter to a position in the housing with the second inner diameter or from the position in the housing with the second inner diameter to a position in the housing with the third inner diameter.
5 more elements
Dependencies are inferred from the claim text.