Key structures

Details Key structures Key structures

2008-03-18

2008-03-18

Enad, Elvin (Department: 2832)

Electricity: circuit makers and breakers

Electric switch details

Actuators

C200S0050EA, C400S495100

Reexamination Certificate

active

11489886

ABSTRACT:
Key structures are provided. A key structure includes a key cover, a substrate, a slider movable with respect to the substrate, a first rod, a second rod and a resilient member. The first rod pivotally connects the key cover and a first guiding portion of the substrate. The second rod pivotally connects the key cover and a second guiding portion of the substrate. The resilient member connects the substrate and the first rod, and exerts a lateral force on the first rod. When the key structure is in a normal state, a first contact portion of the slider contacts and restricts the second rod. When the key structure is switched from the normal state to a depressed state, a second contact portion of the slider impels the second rod outward of the key structure, such that the key cover descends toward the substrate.

REFERENCES:
patent: 5382762 (1995-01-01), Mochizuki
patent: 5635928 (1997-06-01), Takagi et al.
patent: 6172868 (2001-01-01), Oura
patent: 6504120 (2003-01-01), Hsu
patent: 6590565 (2003-07-01), Hosoya
patent: 7022927 (2006-04-01), Hsu
patent: 7059789 (2006-06-01), Chiang
patent: 7173200 (2007-02-01), Yoneyama
patent: 463117 (2001-11-01), None

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