초록 ▼

A hinge apparatus for portable electronic devices such as portable telephones and handheld personal computers can be manufactured with a small and simple structure at a low cost. The hinge apparatus has a shaft with a flange, a cam engaged with an end of the shaft and; a slide cam engaged with the s

A hinge apparatus for portable electronic devices such as portable telephones and handheld personal computers can be manufactured with a small and simple structure at a low cost. The hinge apparatus has a shaft with a flange, a cam engaged with an end of the shaft and; a slide cam engaged with the shaft between the cam and the flange. The slide cam is rotatably with the shaft and slidably in an axial direction. A compression spring is rolled around the shaft, and elastically provided between the slide cam and the flange. The cam has a pair of projections on one side surface at opposite positions, and the slide cam has cam members press-contacted with the projections. Otherwise, provided is a hinge apparatus which connects a microphone and a earphone of a portable telephone. The hinge apparatus comprises: a shaft having a flange with a rotation stopper, fixed in a hole provided at an attachment member in an axial direction provided at an end of the microphone or earphone, at one end; a cam having a rotation stopper, holding the shaft rotatably inserted through an insertion hole provided in a central axis direction of the shaft, engaged with the other end of the shaft, and fixed in a hole provided at an attachment member in the axial direction at an end opposite to the end where the flange is fixed; a slide cam, provided between the cam and the flange, engaged with the shaft inserted through a central portion, rotatably with the shaft and slidably in the axial direction; and a compression spring rolled around the shaft, and elastically provided between the slide cam and the flange. The cam has a pair of projections on one side surface at opposite positions, and the slide cam has cam members press-contacted with the projections.

대표청구항 ▼

[ What is claimed is:] [1.] A hinge apparatus comprising:a shaft, having a flange with fixing means at one end, a deformed shaft at its central portion and a cylindrical shaft at the other end;a cam having a rotation stopper; holding said shaft rotatably inserted therethrough, engaged with said shaf

[ What is claimed is:] [1.] A hinge apparatus comprising:a shaft, having a flange with fixing means at one end, a deformed shaft at its central portion and a cylindrical shaft at the other end;a cam having a rotation stopper; holding said shaft rotatably inserted therethrough, engaged with said shaft;a slide cam, engaged with said shaft inserted into a central portion between said cam and said flange, rotatably with said shaft and slidably in an axial direction; anda compression spring rolled around said shaft, and elastically provided between said slide cam and said flange, rein said cam has a pair of projections on one side surface thereof and at opposite positions on said surface.