TOP-LOADING TYPE WASHING MACHINE

摘要

A top-loading-type washing machine including a drum, a drive module for rotating the drum via a drive shaft, inner and outer pulsators placed in the drum so as to be rotated in opposite directions, and a gearbox connected to the drive shaft for rotating both the pulsators. The gearbox includes a sun gear rotatably connected to the drive shaft, planetary gears rotatably engaged with the sun gear, a ring gear rotatably engaged with the planetary gears, a carrier for connecting the planetary gears so as to be rotated along with the planetary gears, a gear housing to which the ring gear is fixed, the gear housing being coupled to the outer pulsator, and a carrier shaft coupled to the inner pulsator. The top-loading-type washing machine further includes a long-axis bolt fastened to the drive shaft and rotatably inserted into a carrier shaft bore of the carrier shaft.

主权项

1. A top-loading-type washing machine comprising:
a drum; a drive module for rotating the drum via a drive shaft; an inner pulsator located on the drive shaft, the inner pulsator being rotated by torque from the drive module; an outer pulsator located below the inner pulsator, the outer pulsator being rotated by torque from the drive module; and a gearbox connected to the drive shaft to receive torque from the drive module, the gearbox rotating the inner pulsator and the outer pulsator in opposite directions, wherein the gearbox includes: a sun gear connected to and rotating with the drive shaft; a plurality of planetary gears engaged with the sun gear, each of the planetary gears rotating on its own rotation axis while traveling along an outer circumferential surface of the sun gear; a ring gear engaged with the planetary gears so as to perform rotation; a carrier for providing the rotation axis of each planetary gear and for connecting the planetary gears to one another, the carrier being rotated along with the planetary gears when the planetary gears travel along the outer circumferential surface of the sun gear; a gear housing to which the ring gear is fixed, the gear housing being coupled to the outer pulsator for transferring torque; and a carrier shaft formed on the carrier and coupled to the inner pulsator for transferring torque, wherein the carrier shaft has a carrier shaft bore formed therein so as to communicate with an inside of the gearbox, and wherein the top-loading-type washing machine further comprises a long-axis bolt having a lower end fastened to the drive shaft, the long-axis bolt being inserted into the carrier shaft bore and being rotated in the carrier shaft bore.