Patent ID: 7346960

Claim:
A two-shaft hinge enabling rotational and opening/closing movements, comprising: an opening/closing shaft having a through hole extending therethrough in a direction perpendicular to the axis of the opening/closing shaft and dividing the opening/closing shaft into a first segment and a second segment; a rotary shaft inserted through the through hole such that one end of the rotary shaft is provided at one side of the opening/closing shaft and an opposite end of the rotary shaft is provided at an opposite side of the opening/closing shaft; a torque unit for independently generating a sliding frictional torque on the rotational and opening/closing movements on each of the rotary shaft and the opening/closing shaft and comprising a first fixed cam, a first rotary cam and a first spring provided on the one end of the rotary shaft, the first fixed cam and the first rotary cam being brought into abutting relationship with each other by the resilient force of the first spring, and a second fixed cam, a second rotary cam and a second spring provided on the first segment of the opening/closing shaft, the second fixed cam and second rotary cam being brought into abutting relationship with each other by the resilient force of the second spring; and a rotation limiting mechanism for limiting the rotational movement of the rotary shaft along the opening/closing angle range of the opening/closing shaft, the rotation limiting mechanism comprising a first oval-shaped rotation limiting plate provided on the rotary shaft and formed to have a circular long diameter section and a linear short diameter section and a second cylindrical rotation limiting plate formed to have at least one projection and at least one grooved section provided on the periphery thereof provided on the opening/closing shaft and biased by the second spring, wherein by abutting the long diameter section of the first rotation limiting plate with the at least one grooved section of the second rotation limiting plate, the rotary shaft is allowed to rotate, by abutting the short diameter section of the first rotation limiting plate with the at least one projection of the second rotation limiting plate, the rotational movement of the rotary shaft is prevented and the first rotation limiting plate is contacted by the second rotation limiting plate at two sides thereof.