| 摘要 |
<P>PROBLEM TO BE SOLVED: To reduce a diameter of a rotation shaft in a hinge unit while keeping a conventional hinge torque value in a mobile terminal. Ž<P>SOLUTION: The rotation hinge unit 10 includes a base plate 70, a cam holder case 40, a cam holder 50 fitted inside the cam holder case, and a plate, which are inserted in the rotation shaft in series through penetration holes bored at the centers of the respective members in planar view. The base plate is rotatable to the rotation shaft. The cam holder case, the cam holder, and the plate are rotatable in synchronization with the rotation shaft. The cam holder is fitted inside the cam holder case, and a torque generation mechanism composed of two or more plate springs is split and arranged to be axially symmetrical to the rotation shaft at a contact part between the cam holder and the plate so as to obtain the mobile terminal equipped with the rotation hinge unit. Ž<P>COPYRIGHT: (C)2010,JPO&INPIT Ž
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