| 摘要 |
A push-button hinge 20 for a handheld device 22. The hinge comprises an axially movable button 32 having a push surface 56 and a helical portion 62 for converting axial movement of the button to rotation, a helical follower 36 engaged with the helical portion for rotating in response to the axial movement of the button, a cam 42 rotatably movable with a flip part 24 of the handheld device, a cam follower 44 engaged with a cam profile 98 of the cam and rotatably movable with the helical follower, and a biasing member 40 for urging the cam against the cam follower. The cam profile includes an area 124 initially resisting opening of the handheld device that is overcome by rotation of the cam follower in response to the axial movement of the button. The cam profile further includes a slope 122 for causing rotation of the cam with respect to the cam follower due to the biasing member, thus rotating the flip part and opening the handheld device. |
