Urging structure for an output shaft of a drive motor

An urging structure for an output shaft of a drive motor which urges an output shaft of a drive motor in one direction to reduce a driving noise level when said drive motor operates, said structure comprising:

• a pressing plate having a fulcrum end and a free end, wherein the free end abuts an end face of the output shaft;
• and
• an urging spring which urges the pressing plate in a direction oblique to an axial direction of the output shaft;
• wherein the urging spring urges the pressing plate, thereby applying a force oblique to the axial direction of the output shaft to the output shaft;
• wherein the pressing plate has a first face, directly abutting the output shaft, and a second face, opposite to the first face, abutting the urging spring;
• and
• wherein the urging spring exerts a force on the second face of the pressing plate, such that the first face of the pressing plate exerts an oblique force on the output shaft.