| 摘要 |
PROBLEM TO BE SOLVED: To provide a motion conversion mechanism in which the change of load is restrained to the utmost. SOLUTION: This mechanism is provided with a first turn member 4 furnished with a rotary center shaft 1, a first connection shaft 2 provided on a prescribed distance separated position from this rotary center shaft 1 and a second connection shaft 3 provided at 90 deg. interval around the rotary center shaft 1 relative to the first connection shaft 2 and provided at the interval same as the interval between the first connection shaft 2 and the rotary center shaft 1 relative to the rotary center shaft 1 and the second turn member 8, having the shape same as this first turn member 4, arranged at a prescribed interval relative to the first turn member 4, a pair of link pieces 9, 10 connecting the mutual first connection shafts 2, 6 and the mutual second connection shafts 3, 7 of the first turn member 4 and the second turn member 8 respectively and an output piece 13 for connecting the intermediate positions of these link pieces 9, 10. Further, an output shaft 14 is provided on the intermediate position of the output piece 13.
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