| 摘要 |
PROBLEM TO BE SOLVED: To solve the problem that, when obtaining power from a device in which drive power is obtained manually or from a weak drive power device, power amplification is attained by using the action of a lever but since a rocking motion stroke is short in that case, in a power transmission mechanism employing only a meshing type gear, it is not ideal for a driving device related to transportation or a generator and when accelerating a rotating speed, since torque is decreased considerably and it is not practical, a mechanism in which a number of times of rotations can be performed only by one time of rocking without considerably reducing the torque is expected.SOLUTION: Regarding a structure of the mechanism, a pair of bevel gears are used and two arms are put out of a fixed bevel gear so as to rock the other bevel gear. Spiral grooving is applied to the bevel gear that can be rocked, to be used as a ball screw nut and when a rolling bearing is mounted on a boss and connected by a member relating to the rocking arm, the rolling bearing can be rolled and moved on a tooth surface of the counter bevel gear. A ball screw bolt can fall down in parallel with a point of action of a lever and by inserting the ball screw bolt into a bevel gear nut, a number of times of rotations can be performed by one time of rocking. |
