Foldable portable information terminal
AssigneeNEC Corporation
InventorsMasatomo Mizuta, Kazuo Ohtsuta, Kiyoshi Kohayakawa, Michio Nagai, Mika Fujii, Masaki Shimamura, Mitsuru Sendouda
Life of this patent
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Abstract
A foldable portable information terminal includes an upper unit having a display unit on its one side, a lower unit having operation keys on its one side, and a movable connecting mechanism connecting the upper unit and the lower unit allowing the upper unit to be opened, closed, and freely rotated with respect to a longitudinal direction of the lower unit. The displaying mode of the display unit whose direction varies depending on a position of the upper unit is changed depending on a positional relationship of the upper unit and the lower unit.
Claims1
A rotation restriction device for restricting rotation of a rotation axis, the rotation restriction device comprising:
- a stopper piece comprising:
- a first side formed lengthwise in a direction which is perpendicular to the rotation axis;
- and
- a second side which is formed perpendicular to a top end of the first side and connects to the first side and extends from the first side in a direction toward the rotation axis;
- a stopping claw which is formed on a bottom end of the first side of the stopper piece and protrudes in a direction towards the rotation axis;
- and
- a projection which projects from the rotation axis and rotates with the rotation axis, and butts against the stopping claw causing the stopper piece to linearly slide in a direction of stopping the rotation of the rotation axis within a predetermined range of rotation.
Dependencies are inferred from the claim text.