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Patent Searching and Data


Title:
KEY SWITCH HAVING COLLAPSIBLE BALANCING STAND
Document Type and Number:
WIPO Patent Application WO/2020/124685
Kind Code:
A1
Abstract:
A key switch having a collapsible balancing stand, the switch comprising a base (1), a movable plate (2), a balancing stand (3), a transmission member (6), and a key cap (4). The movable plate (2) is installed on the base (1), and is movable to the left or right along the base (1). The balancing stand (3) is provided above the movable plate (2) and comprises a left support (31) and a right support (32) disposed on the left and right thereof, one of the supports has a lower end connected to the movable plate (2), and the other of the supports has a lower end connected to the base (1). The two supports move in a synchronous manner under the action of the transmission member (6). Two ends of a restoration spring (5) are respectively connected to the two supports or to the supports and the key cap (4). Upper ends of the two supports are both connected to the key cap (4). When the movable plate (2) is pushed to the left or right, the balancing stand (3) rotates along with the movable plate (2), and the key cap (4) moves in a vertical direction accordingly, thereby achieving collapsibility of a key. The restoration spring (5) is not involved during a collapsing operation so as to reduce the force required for the collapsing operation. The key switch of the present invention also ensures smoothness during a vertical movement of the key cap (4), so as to prevent the issues of misalignment or jamming of the key cap (4), poor trigger sensitivity, and the like.

Inventors:
HAN CAIFENG (CN)
Application Number:
PCT/CN2019/000003
Publication Date:
June 25, 2020
Filing Date:
January 07, 2019
Export Citation:
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Assignee:
HAN CAIFENG (CN)
International Classes:
H01H13/705
Foreign References:
CN107516607A2017-12-26
JP2009009385A2009-01-15
CN1452046A2003-10-29
CN108022786A2018-05-11
CN104299826A2015-01-21
Attorney, Agent or Firm:
GUANGZHOU KAIDONG INTELLECTUAL PROPERTY AGENCY LTD. (CN)
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