Patent ID: 8092107
Filing Date: 2012-01-10
Classification: H04M

Abstract:
1. An electronic device comprising: a housing comprising: a front wall defining an opening; a side wall defining a sliding slot; and a back wall comprising a securing portion and a guiding portion protruding from an inner surface of the back wall, the guiding portion defining a guide hole and being arranged between the securing portion and the sliding slot of the side wall; a key board received in the opening of the front wall, the key board comprising a plurality of first keys and a plurality of second keys; and a height adjustment apparatus comprising: a platform for supporting the plurality of second keys; a cross bridging comprising a first supporting arm and a second supporting arm, the first supporting arm having an end slidably connected to the platform and the other end pivotably connected to the securing portion, the second supporting arm having an end slidably connected to the platform; a sliding button slidable along the sliding slot of the side wall, the sliding button comprising a first surface facing the cross bridging, an opposite second surface, and an operation portion formed on the second surface, the first surface being a lever surface; and a pushing rod passing through the guide hole of the guiding portion, the pushing rod comprising a first end pivotably connected to the other end of the second supporting arm and a second end resisting the lever surface; wherein the lever surface comprises a first flat surface, an sloped surface, and a second flat surface connected in sequence, the first flat surface and the second flat surface are parallel to the second surface of the sliding button.