| 摘要 |
A hinge assembly ( 100 ) for joining a cover section ( 110 ) to a body section ( 120 ) of a foldable electronic device includes a main shaft ( 1 ), a cam ( 2 ), a follower ( 3 ), a first elastic element ( 4 ), a control ( 5 ), a sleeve ( 6 ), a second elastic element ( 7 ) and a fixing element ( 8 ). The shaft has an outer thread ( 101 ) at one end and an engaging portion at an opposite end. The cam includes an end cam surface ( 212 ), and an inner thread ( 211 ). The follower includes a latching cam surface ( 312 ). The control has at least one projection ( 52 ) at one end thereof, and engages with the engaging portion. The sleeve is connected with the follower, and rotation of the sleeve is limited by the control. When the control is pushed, the hinge assembly fully opens the cover section from body section. This provides a user with convenient one-handed operation.
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