| 摘要 |
<P>PROBLEM TO BE SOLVED: To carry out accurate angle measurement even if the length of an arm portion is short. <P>SOLUTION: In an angle meter 1, a first arm portion 2 and a second arm portion 3 are supported so as to relatively rotate about a spindle. A center line of the first arm portion 2 is positioned at 0 degree of an angle indicator 5. The angle indicator 5 is fixed to one end of the first arm portion 2 coaxially with the spindle. An angle apparatus 10 is provided at a free end portion of the second arm portion 3. The angle apparatus 10 surrounds an angle display portion 8 with angle scales in a circumferential direction with a display case 7 and integrally rotatable. A sphere 9 provided in the display case 7 is positioned in a gravity direction. The angle apparatus 10 is positioned at a joint and the like, and the first arm portion 2 and the second arm portion 3 are linearly aligned along a trunk. The 0 degree of the angle display portion 8 is made to match with the sphere 9 positioned in the gravity direction. By matching the linear first arm portion 2 and the second arm portion 3 with an arm portion or a thigh portion while using the angle apparatus 10 as a fulcrum, the sphere 9 displays a rotation angle. <P>COPYRIGHT: (C)2012,JPO&INPIT |
