Electricity: circuit makers and breakers – Electric switch details – Actuators
Patent
1997-02-11
1998-08-18
Dang, Khanh
Electricity: circuit makers and breakers
Electric switch details
Actuators
H01H 1370
Patent
active
057947627
ABSTRACT:
A key switch assembly for use in a keyboard employing pressure sensitive electric switches disposed within a keyboard housing is provided. The key switch assembly includes a key switch socket member integrally formed on an upper panel of the keyboard housing to project axially upward therefrom. The key switch socket member includes an inner wall portion defining a receiving bore which has formed thereon an axially extended guiding slot spaced from a pair of appropriately spaced and radially protruding guiding projections which are provided with upwardly exposed beveled surfaces. The key switch assembly also includes a key top member displaceably coupled to the key switch socket member which is formed with an axially extended key stem. The key stem is coaxially received through the receiving bore of the key switch socket member and includes an outer surface portion on which are formed a pair of axially extended guiding rails slidably engaged respectively by the guiding projections of the key switch socket member and a radially protruding guiding rib which slidably engages the guiding slot of the key switch socket member. A pair of resilient projections are provided on the key stem to resiliently engage respectively the guiding projections of the key switch socket member.
REFERENCES:
patent: 4939324 (1990-07-01), English et al.
patent: 5283408 (1994-02-01), Chen
patent: 5442152 (1995-08-01), Huang
patent: 5456541 (1995-10-01), Ching-Shui
patent: 5496982 (1996-03-01), Tsai
Chicony Electronics Co. Ltd.
Dang Khanh
Klein David I.
Lee Jun Y.
Rosenberg Morton J.
LandOfFree
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.
Profile ID: LFUS-PAI-O-1107396