Hinge device for opening and closing of washing machine cover

Abstract

The present invention provides a hinge device for opening and closing a washing machine cover that rotatably supports a washing machine cover. In the conventional device, a noise such as a rattling sound occurs at the final closing part of the lid, and it becomes difficult to open the heavy lid, and when the lid is released from the hand during lifting of the lid, it is almost The damping effect is not exerted, and as a result, there is a problem of causing noise and the like in the final closing part, but according to the present invention, by providing the driving cam on the shaft damper and making it contact with the driven cam biased by the compression spring, thereby The damping force generated by the rotational motion of the shaft damper and the damping force generated by the compression force of the compression spring are unitized, and the hinge shaft also serves as a guide function for the linear motion of the driven cam, etc. Thereby, the lid that can be lifted lightly compared with the weight of the washing machine lid body can be realized, and when the washing machine lid body is released from the hands during the lifting of the washing machine lid body, the damper effect can be exerted to the maximum, and the Significantly improved security.

Description

technical field [0001] The present invention relates to a hinge device for opening and closing the lid of a washing machine that rotatably supports the lid of a washing machine. The hinge device for opening and closing the lid of the washing machine supported by the method. Background technique [0002] Generally, a lid is rotatably arranged on a washing tub of a washing machine, and various types of hinge devices have conventionally been proposed as hinge devices for efficiently turning and opening and closing the lid of the washing machine. [0003] Conventionally, in the case of using the spring elastic force as the main damper function, it was difficult to adjust the torque by changing the rotation angle of the cover, and the start speed of the free fall in the direction of closing the cover became slow, and finally closed. There is a high possibility that "cracking" noise will be generated in the cover part. [0004] In addition, the restoring force of the spring acts...

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Problems solved by technology

[0003] Conventionally, in the case of using the spring elastic force as the main damper function, it was difficult to adjust the torque by changing the rotation angle of the cover, and the start speed of the free fall in the direction of closing the cover became slow, and finally closed. There is a high possibility of "cracking" noise from the cover part

[0004] In addition, the restoring force of the spring acts in the direction of opening the lid, making it easier to lift up, but when fully lifted, there is a possibility that it may vibrate with a rattling sound.

[0005] In the past, in the case of the shaft damper method with variable torque / one direction function, there was no device that could reduce its own weight in the direction of lifting the cover, not only it became difficult to open the cover, but also when lifting During the process of closing the cover, when the cover is released by hand, that is, when the direction is suddenly switched from the lifting direction to the closing direction, the damper effect can hardly be exerted. "The bad situation of the sound

[0006] Conventionally, the method of separately using the compression spring and the shaft damper has the problem that torque distribution management becomes difficult when the elastic force of the compression spring and the damping force of the shaft damper are not unitized. When the shaft damper is composed of a single case, since a high force value is accommodated in a single case, there are problems in that the case is enlarged to withstand internal pressure, and the supplementary material and rigidity etc. high cost due to reasons

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