| 摘要 |
A retractable belt clip button is slidably engaged in a recess in the rear face of the housing of a mobile phone or other portable electronic device for movement between an extended position projecting out of the rear face of the housing and a retracted position in which an outer face of the button is substantially flush with the rear face of the housing. A spring biases the button into the extended position. A push button latching mechanism is provided for releasably holding the button in the retracted position when it is pushed into the recess, and the latching mechanism is released when a user pushes the button inwardly from the latched position, allowing the button to pop out into the extended position under the action of the biasing spring.
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