| 摘要 |
Provided is a laundry treatment machine which may include at least one hinge that supports a lid on a main body. The hinge may include a hinge housing, an elastic member disposed inside the hinge housing, and a pair of cams disposed in the housing to move in linkage with the lid and the elastic member. The cams may include contact surfaces that are inclined relative to each other in an axial direction of the cams, and when a contact surface of one of the cams slides along a contact surface of the other cam, a distance between the pair of cams may be changed to deform the elastic member. The contact surface of at least one of the cams may be divided into at least three sections by a prescribed angular range along the circumferential direction, each of the three sections having a separate contact surface. |
| 主权项 |
1. A laundry treatment machine comprising:
a main body having an opening for loading laundry; a lid provided over the opening to open and close the opening; and at least one hinge that supports the lid with respect to the main body, the hinge including
a hinge housing filled with a fluid having a prescribed viscosity,a shaft that extends from the hinge housing and coupled to the lid,an elastic member disposed inside the hinge housing; anda cam coupled between the shaft and the elastic member and configured to transform a linear force of the elastic member to a rotational force to the lid, wherein the cam includes at least three engagement protrusions arranged around a circumferential direction of the cam, the engagement protrusions having prescribed shapes that protrude along a rotational axis at a prescribed angle, when the cam rotates based on a movement of the lid, a plurality of contact surfaces on the engagement protrusions slides against corresponding contact surfaces on a follower to change a distance between the cam and the follower, and wherein the laundry treatment machine further includes a piston that is moved by the follower to deform the elastic member, the piston being disposed between the follower and the elastic member inside the hinge housing. |
