Key mechanism

Details Key mechanism Key mechanism

2007-09-04

2007-09-04

Friedhofer, Michael (Department: 2832)

Electricity: circuit makers and breakers

Electric switch details

Actuators

Reexamination Certificate

active

11566660

ABSTRACT:
A key mechanism is disclosed. A base plate includes a first pivoting portion and a second pivoting portion opposing the first pivoting portion. A keycap is disposed on the base plate and includes at least one engaging portion. A linking bar is connected between the base plate and the keycap and includes a first body portion, two second body portions, and two curved portions. The first body portion is rotatably engaged in the engaging portion of the keycap. The second body portions are connected to the first body portion and oppose each other. The curved portions are connected to the second body portions and pivot to the first and second pivoting portions of the base plate, respectively.

REFERENCES:
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patent: 6239391 (2001-05-01), Nishijima et al.
patent: 6399909 (2002-06-01), Okada
patent: 6495782 (2002-12-01), Huang
patent: 6618239 (2003-09-01), Takahashi et al.
patent: 6713699 (2004-03-01), Yoneyama
patent: 6730868 (2004-05-01), Watanabe
patent: 6815627 (2004-11-01), Chen
patent: 7094984 (2006-08-01), Yokoyama
patent: 7199320 (2007-04-01), Sato

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