Patent ID: 6342767
Filing Date: 2002-01-29
Classification: A61B,F16H

Abstract:
A mobile X-ray apparatus, comprising:a main frame, a pair of driving motors attached to the main frame and having rotating shafts, a pair of cyclo-decelerating mechanisms respectively fixed to the driving motors, each cyclo-decelerating mechanism including an output shaft, an input shaft attached to the rotating shaft of the driving motor, an eccentric cam attached to the input shaft, a planetary gear with an epitrochoid shape fitted around the eccentric cam and having holes, a disc attached to the output shaft and having a plurality of rollers engaging the holes, and a stationary circular plate having a plurality of stationary pin gears fixed thereto so that when the input shaft is rotated, a peripheral surface of the planetary gear engages the plurality of the stationary pin gears to perform a planetary movement, which is transferred to the disk through the rollers engaging the holes of the planetary gear in a direction opposite to a rotation of the input shaft so that a rotational speed of the driving motor is decelerated and transmitted to the output shaft, and a pair of driving wheels respectively attached to output shafts of the cyclo-decelerating mechanisms, said pair of the driving wheels being individually driven by the respective motors through the respective cyclo-decelerating mechanisms in response to an operation power applied to an operation handle.