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US 9,435,545 B2Granted
Home appliance
AssigneeLG Electronics Inc.
InventorsJaemyung Chin, Sungho Choi, Yoongho Jung
Life of this patent
Estimating the term…
Abstract
Disclosed is a home appliance. The home appliance includes a cabinet having a chamber configured to receive an object therein, a door configured to open or close the chamber, a cam assembly configured to convert rotation into horizontal linear movement upon rotation of the door, and a spring configured to be compressed by horizontal linear movement of the cam assembly. The cam assembly has a variable horizontal linear movement distance for compression of the spring according to a rotation angle of the door.
Claims15
A home appliance comprising:
- a cabinet having a chamber configured to receive an object therein;
- a door mounted to a front of the cabinet by a horizontal shaft to open or close the chamber;
- a cam assembly configured to convert rotational movement of the door into horizontal linear movement upon rotation of the door;
- and
- a spring configured to be compressed by the horizontal linear movement of the cam assembly,
- wherein the cam assembly includes:
- a first cam configured to rotate with the door;
- and
- a second cam configured to linearly move via rotation of the first cam,
- wherein at least one of the first cam or the second cam includes a first guide face having a first gradient, a second guide face adjacent to the first guide face and having a second gradient, and a third guide face adjacent to the second guide face and having a third gradient, and
- wherein the second gradient is greater than the first gradient, and the third gradient is greater than the second gradient.
8 more elements
A home appliance comprising:
- a cabinet;
- a door mounted to a front of the cabinet by a horizontal shaft;
- a first cam coupled to the cabinet and configured to convert rotational movement of the door into horizontal linear movement upon rotation of the door;
- a second cam configured to linearly move via rotation of the first cam;
- and
- a spring configured to be compressed by the horizontal linear movement of the second cam,
- wherein a guide face of the first cam that contacts the second cam has a prescribed shape to vary the amount of horizontal linear movement of the second cam, the guide face including:
- a first surface having a first gradient,
- a second surface provided adjacent to the first surface and having a second gradient, and
- a third surface provided adjacent to the second surface and having a third gradient,
- wherein the first gradient, the second gradient, and the third gradient are different from one another, and
- wherein the second gradient of the second surface is greater than the first gradient of the first surface such that the spring is compressed at a greater rate through the second surface than the first surface and the third gradient of the third surface is greater than the second gradient of the second surface such that the spring is compressed at a greater rate through the third surface than the second surface.
9 more elements
Dependencies are inferred from the claim text.