| 摘要 |
The invention is directed to a cover for use with a portable display device. The cover has a lid which is rotatable between a closed position, through intermediate open positions, to a completely open position. A movable hinge is attached to the lid, such that the lid can rotate about the movable hinge. A fixed hinge is secured to a main body of the portable display device. The movable hinge is mounted to the fixed hinge to allow the movable hinge to be moved in an arcuate motion about the fixed hinge. Positive stop members are provided on the movable hinge and fixed hinge, whereby as the lid is rotated, the positive stop members define the intermediate open positions which position the lid at an angle relative to the main body, thereby allowing the lid to act as a stand for the portable display device. A connecting arm extends between and is pivotally mounted to the movable hinge and the fixed hinge. The stop members are in the form of projections and recesses, whereby as the lid is rotated, the intermediate open positions are defined by the projections being received and maintained in the recesses by resilient spring forces.
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