Invention Grant
- Patent Title: Keypad assembly for a portable electronic device
- Patent Title (中): 用于便携式电子设备的键盘组件
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Application No.: US13240749Application Date: 2011-09-22
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Publication No.: US08822861B2Publication Date: 2014-09-02
- Inventor: Roman Rak , Albert Murray Pegg
- Applicant: Roman Rak , Albert Murray Pegg
- Applicant Address: CA Waterloo
- Assignee: BlackBerry Limited
- Current Assignee: BlackBerry Limited
- Current Assignee Address: CA Waterloo
- Agency: Ridout & Maybee LLP
- Main IPC: H01H13/14
- IPC: H01H13/14 ; H01H13/7065 ; G06F3/023

Abstract:
A friction device, keypad assembly and portable electronic device are disclosed. In one embodiment, there is provided a keypad assembly for a portable electronic device, comprising: a keypad having a number of keys each having an actuator post attached to a back side thereof; a circuit board; a light guide located between the keypad and the circuit board, the light guide defining a number of holes which provide paths for respective actuator posts to travel through to contact respective electrical switches on the circuit board; and at least one friction device located in one of the holes of the light guide, the friction device providing a physical barrier limiting movement of the actuator post in a direction normal to a direction of actuation, the friction device applying friction to at least one side of the actuator post and resisting movement of the actuator post in the direction of actuation.
Public/Granted literature
- US20120106104A1 Keypad Assembly for a Portable Electronic Device Public/Granted day:2012-05-03
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