| 摘要 |
PROBLEM TO BE SOLVED: To provide an angle adjustment method wherein the number of switching levels can be increased, while enabling fine adjustment of the angle and a use of a small-sized, high-strength angle adjustment metal fitting. SOLUTION: In this angle adjustment method, a first arm and a second arm are pivoted swingably around a first shaft center C<SB>1</SB>while an optional inclination angle between a fully opened state and a fully folded state can be maintained. On the second arm, a gear section 4 having two or more gear teeth on the circumference centering the first shaft center C<SB>1</SB>is formed. On the first arm, a wedge face 8 is formed. Between the wedge face 8 and the gear section 4, a space is formed, so as to allow a floating wedge member 6 having two or more gear teeth inside to move in the space. COPYRIGHT: (C)2011,JPO&INPIT
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