| 摘要 |
A portable information appliance includes a first case having a display, a second case and a hinge coupling the cases together so the cases are foldable relative to each other. The second case covers the display of the first case in the folded condition. The hinge hasa pivotally-rotating unit which contains at least one electronic component. When the cases are in an opened position, the pivotally-rotating unit moves from an initial position in which the electronic component faces a direction that is either the same as or opposite to a direction along which the display faces, to a position at which the electronic component faces along an opposite direction than when the pivotally-rotating unit is returned to the initial position when the cases are folded. Opening of the cases does not move the pivotally-rotating unit from the initial position.
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