| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a step-up gear capable of obtaining a high output at low-speed rotation. <P>SOLUTION: The step-up gear includes an outer driving gear 1 which receives energy and rotates and an inner main shaft gear 2 which transmits a rotative force of the outer driving gear to a rotator, wherein intermediate transmission gears 3A, 3B are arranged between the outer driving gear and the inner driving main shaft gear so as to be capable of biting the outer driving gear 1 and the inner main shaft gear 2, the rotative force of the outer driving gear is stepped up with the intermediate transmission gear and the inner main shaft gear and the rotator is caused to rotate with a stepped-up output. The respective gears are formed in ring shapes having diameters different from each other, respectively have biting face and non-biting face on the opposite inner peripheral and outer circumferential faces of respective gears, teeth parts 5, 9a, 9b, 11a, 11b, 12 which assume wave shapes are formed on opposite biting faces by every gear, the biting state of respective opposite teeth parts is provided, the rotative force of the outer driving gear is transmitted to the inner main shaft gear via respective teeth parts, at the same time, guide rollers 13, 14, 15 are inserted between the opposed non-biting faces of respective gears and the opposed teeth parts are bitten with each other in the pressing direction of a guide roller. <P>COPYRIGHT: (C)2012,JPO&INPIT |
