Folder type hinge device and personal portable device using the same

A folder type personal portable device, comprising:

• a main part comprising a first hinge case having a hollow shape disposed at a first side of a top of the main part;
• a folder part comprising a second hinge case having a hollow shape disposed at a second side of the top opposite to the first side to correspond to the first hinge case;
• a first hinge part comprising a clamp piece disposed inside the first hinge case and a first clamp flange formed in a single body with the clamp piece and fixed to the main part;
• a second hinge part comprising a rotation boss disposed inside the second hinge case and a second clamp flange formed in a single body with the rotation boss and fixed to the folder part;
• and
• a hinge connection axle having one end fixed to the clamp piece and an opposite end inserted in the rotation boss, the hinge connection axle serving as a rotation axis of the second hinge part,
• wherein the hinge connection axle has a hollow area, and further comprises a clamp cam having one end arranged in the hollow area of the hinge connection axle, a cam housing received in a hinge cover, a motion cam disposed inside the cam housing, to rotate at a predetermined angle with respect to a contact area of the clamp piece, and a spring to support the motion cam elastically;
• and
• the hinge cover formed in a cylindrical shape and receiving the rotation boss and the cam housing, the hinge cover including a through hole to pass a wired connection between the rotation boss and the second clamp flange.

A folder type hinge device connecting a main part with a folder part, comprising:

• A main part comprising a first hinge case having a hollow shape disposed at a first side of a top of the main part;
• a folder part comprising a second hinge case having a hollow shape arranged at an opposite side of the top of the main part to correspond to the first hinge case;
• a first hinge part comprising a clamp piece disposed inside the first hinge case and a first clamp flange formed in a single body with the clamp piece and fixed to the main part, the second hinge case and the first hinge case arranged along a single axis of rotation;
• a second hinge part comprising a rotation boss disposed inside the second hinge case and a second clamp flange formed in a single body with the rotation boss and fixed to the folder part;
• and
• a hinge connection axle having one end fixed to the clamp piece and the other end inserted in the rotation boss, the hinge connection axle to serve as a rotation axis of the second hinge part.