Patent ID: 7974666
Filing Date: 2011-07-05
Classification: H04M,Y10T

Abstract:
1. An opening/closing device comprising: a fixed guide member ( an operation cam ( a first rotation cam ( a second rotation cam ( a movable cam ( urging means ( returning means ( said second member being rotated with respect to said first member toward said opening operation direction through said movable cam by the urging force of said urging means when said operation cam is displaced in said predetermined operation direction by said external operation force, wherein said fixed guide member having inclined guide portions ( said second rotation cam being driven to rotate by said inclined guide portions under a pressing force from said movable cam to have its engagement state with said movable cam changed and to have the urging direction of the second member by said urging means changed when said operation cam is operated to cause the first rotation cam to be rotated from the operation starting position.