Patent ID: 6077184
Filing Date: 2000-06-20
Classification: D06F,F16H,Y10S

Abstract:
A shaft assembly having an input shaft being rotated by a motor and an output shaft being connected to a pulsator, said shaft assembly comprising:a speed reduction gear assembly including a helical internal gear, a helical sun gear assembled with said input shaft by insertion so as to be relatively fixed along a rotational direction thereof, said sun gear being made of plastic, and a plurality of helical planet gears engaged with said internal gear and said sun gear;an upper carrier for supporting respective ends of rotational shafts of said planet gears, said upper carrier fixedly assembled with said output shaft;a lower carrier for supporting respective other ends of rotational shafts of said planet gears; andmeans preventing movement of said sun gear toward said output shaft comprising a support shaft disposed between said sun gear and said output shaft coaxially therewith, said support shaft having two ends inserted into said sun gear and said output shaft, respectively.