| 摘要 |
A hinge assembly ( 100 ) includes a shaft ( 10 ), a follower ( 12 ), a cam ( 20 ), a friction-reducing mechanism ( 30 ), and an urging means. The shaft includes a securing portion ( 11 ) formed thereon. The follower is connected with the shaft. The cam essentially is in the shape of a cylinder, and includes a cam surface ( 24 ) and defines a cam hole ( 22 ) extending therethrough. The cam hole receives the shaft therethrough. The friction-reducing mechanism is located around the shaft, and includes a rolling means. A first end of the urging means abuts against the shaft, and an opposite second end of the urging means biases the friction-reducing mechanism. The friction-reducing mechanism is disposed between the cam and the urging means. The cam surface of the cam is rotatably and movably engaged with the follower under force of the urging means.
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