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    • 2. 发明申请
    • Keypad Assembly for a Portable Electronic Device
    • 便携式电子设备的键盘组件
    • US20120106104A1
    • 2012-05-03
    • US13240749
    • 2011-09-22
    • Roman RakAlbert Murray Pegg
    • Roman RakAlbert Murray Pegg
    • H05K7/00H01H13/76
    • H01H13/7065G06F3/023H01H13/14H01H2221/002H01H2221/026H01H2221/058H01H2221/062H01H2237/00H03K2217/96042
    • 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.
    • 公开了一种摩擦装置,键盘组件和便携式电子装置。 在一个实施例中,提供了一种用于便携式电子设备的键盘组件,包括:键盘,其具有多个键,每个键具有附接到其后侧的致动器柱; 电路板; 位于键盘和电路板之间的导光板,光导件限定了许多孔,这些孔为相应的致动器柱提供通路以与电路板上相应的电开关接触; 以及至少一个摩擦装置,其位于所述光导的一个孔中,所述摩擦装置提供物理屏障,以限制所述致动器柱沿与致动方向垂直的方向的运动,所述摩擦装置将摩擦力施加到至少一个侧面 并且致动器柱沿致动方向的抵抗运动。