| 摘要 |
PROBLEM TO BE SOLVED: To provide a strong spring force for strong rotating torque by setting a positioning sphere for a click to one, substituting the semispherical part at the end of a cap-shaped holder for the sphere, and extending the length of a spring within the holder, to make the sphere protrudable and retreatable to the holder, and to constitute a cylindrical plate by a pair of semi-cylindrical pieces. SOLUTION: This hinge comprises a positioning unit body 30 formed of the holder 31 within a retaining hole 10 formed in the direction orthogonal to the axial direction of a rotator 5 in a case 1, the sphere 11 provided on the opening side of the holder 31 through a stopper 32, and the spring 12 provided between the inner end wall 33 of the holder 31 and the sphere 11, wherein the strong rotating torque and spring force are obtained by extending the length of the spring 12. The sphere 11 is set protrudably and retreatably on the opening side of the holder 31, and the cylindrical plate 4 is formed of the pair of semi- cylindrical pieces 4a and 4b.
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