Key switch structure

Details Key switch structure Key switch structure

1999-05-25

2000-05-16

Friedhofer, Michael

Electricity: circuit makers and breakers

Electric switch details

Actuators

H01H 312, H01H 1370

Patent

active

060640200

ABSTRACT:
A key switch comprises a first link member 12 and a second link member 13, and the first link member 12 has a pair of legs 12a, 12b, linked with each other by a first connection bar 12c as well as a second connection bar 12d. The legs 12a, 12b are provided with pivots 12e, 12f, respectively, and the second link member 13 is attached to the external side of the first link member 12, rotatably about the pivots 12e, 12f, respectively. The back surface of a key top 11 is provided with a pair of rotation supports 11a, 11b, and a pair of slide supports 11c, 11d. The former serving for rotatably supporting one end of the first link member 12, and the latter for slidably supporting one end of the second link member 13. An elastic member 14 is disposed inside the first link member 12, and causes electrical connection to be made between contacts 16a, and 16b when the key top 11 is pressed down. When the key top 11 is pressed down to a lowermost depth, the first link member 12 and the second link member 13 are moved towards the direction orthogonal to the direction in which the key top 11 is pressed down, superposing on each other entirely. This enables the key top 11 to be set so as to have a low profile.

REFERENCES:
patent: 5463195 (1995-10-01), Watanabe et al.
patent: 5555971 (1996-09-01), Takada
patent: 5758763 (1998-06-01), Sanda et al.
patent: 5767468 (1998-06-01), Tsai
patent: 5770824 (1998-06-01), Tsai et al.
patent: 5829579 (1998-11-01), Tsai
patent: 5878872 (1999-03-01), Tsai

Affiliated with

Also associated with

Rating

Key switch structure does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Key switch structure, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Key switch structure will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-260469