H - Electricity – 01 – H
Patent
H - Electricity
01
H
H01H 13/7065 (2006.01)
Patent
CA 2716036
A key assembly for use in an electronic device is provided. The key assembly includes a plurality of dome switches and a plurality of single-piece keycaps. Each keycap identifies a row of keyboard characters. Each keycap has a plurality of character-representing portions separated by deforming portions. Each character--representing portion is associated with a separate one of the plurality of dome switches. The key assembly further comprises a plurality of actuators for activating the dome switches. Each actuator has a first side which is engaged by one of the character representing portions of the keycap. Each actuator has a second side which engages the dome switch associated with that character-representing portion. In a rest state in which the keycap is not depressed, at least some of the actuators preload at least some of the dome switches by exerting a force upon the dome switches.
Chen Chao
Hofer Joseph Michael
Prsa Steven Andrew
Welker Michael
Wood Todd Andrew
Research In Motion Limited
Ridout & Maybee Llp
LandOfFree
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