GEAR STRUCTURE AND METHOD FOR TRANSFORMING ROTATIONAL MOTION TO ROTATIONAL RETURN MOTION OR LINEAR RETURN MOTION WITH TEMPORY STOP

摘要

A gear structure for converting one-way rotation into two-way rotation or temporarily stopping linear reciprocation and a method thereof are provided to apply when a reversible motor is hardly used or when one-way rotation needs to be mechanically converted into reciprocation and to realize repeated reciprocation even without reversing moving direction of the motor. A gear structure for converting one-way rotation into two-way rotation or temporarily stopping linear reciprocation comprises a main rotary shaft rotated in one direction; a first bevel gear(20) fixed with the main rotary shaft and removed of a part of saw teeth; a second bevel gear(30) faced incongruously with the first bevel gear at the main rotary shaft and removed of a part of the saw teeth; a sub rotary shaft(40) installed vertically about the main rotary shaft; and a bevel pinion(50) fixed at one side of the sub rotary shaft, connected with the first bevel gear in rotation of the main rotary shaft, and disposed between the first and second bevel gears to be connected with the second bevel gear. The rotated direction of the bevel pinion by the first bevel gear is opposed to the rotated direction of the bevel pinion by the second bevel gear.