A compact washing machine capable of improving detergency or reducing a washing time is provided. A drum 30 may be rotatably installed in a tub 20 installed in the inside of a housing 10 in the state in which an opening 12 is toward an opening of the drum 30. A pulsator 40 having a protrusion 45 extending in a radial direction may be rotatably installed on a bottom of the drum 30. During washing operation, a controller 60 may control a driving device 50 to rotate the pulsator 40 and the drum 30 in opposite directions.

A compact washing machine capable of improving detergency or reducing a washing time is provided. A drum 30 may be rotatably installed in a tub 20 installed in the inside of a housing 10 in the state in which an opening 12 is toward an opening of the drum 30. A pulsator 40 having a protrusion 45 extending in a radial direction may be rotatably installed on a bottom of the drum 30. During washing operation, a controller 60 may control a driving device 50 to rotate the pulsator 40 and the drum 30 in opposite directions.

A laundry appliance includes a rotating drum that receives laundry to be treated. A motor rotates a drive shaft about a vertical axis and engages the rotating drum at a base. A coupler is disposed within an upper portion of the base and that rests upon the drive shaft to transfer rotational forces from the drive shaft to the drum. A lower portion of the base engages an outer surface of the shaft to resist moment forces that are exerted against the drive shaft in an off-axis direction relative to the vertical axis.

A laundry appliance includes a rotating drum that receives laundry to be treated. A motor rotates a drive shaft about a vertical axis and engages the rotating drum at a base. A coupler is disposed within an upper portion of the base and that rests upon the drive shaft to transfer rotational forces from the drive shaft to the drum. A lower portion of the base engages an outer surface of the shaft to resist moment forces that are exerted against the drive shaft in an off-axis direction relative to the vertical axis.

A laundry treating appliance comprises a rotatable basket with a spin tube, a rotatable clothes mover located within the rotatable basket, a motor having a drive shaft extending through the spin tube and operably coupled to the clothes mover, and a drive system selectively rotatably coupling the spin tube and the drive shaft and comprising a first threaded ring located about the spin tube, a second threaded ring threaded about the first threaded ring wherein at least one of the first threaded ring and the second threaded ring is axially movable relative to the other, and a gear assembly rotationally coupled to the drive shaft.

A laundry treating appliance comprises a rotatable basket with a spin tube, a rotatable clothes mover located within the rotatable basket, a motor having a drive shaft extending through the spin tube and operably coupled to the clothes mover, and a drive system selectively rotatably coupling the spin tube and the drive shaft and comprising a first threaded ring located about the spin tube, a second threaded ring threaded about the first threaded ring wherein at least one of the first threaded ring and the second threaded ring is axially movable relative to the other, and a gear assembly rotationally coupled to the drive shaft.

A washing machine includes a dewatering shaft for rotating a washing tub, a drive shaft for rotating a pulsator in the washing tub, a coupler configured to move up and down along the dewatering shaft, a solenoid configured to move the coupler, a coupler guide configured to be rotated by contact with the coupler moving upward and to fix a position the coupler or guide the coupler to move to another position by contact with the coupler, a fixed core that surrounds the solenoid, and a moving core disposed at a perimeter of the coupler and configured to move the coupler by magnetic flux. The moving core is configured to, based on moving upward to the fixed core, maintain a gap defined between the moving core and the fixed core within a set range.

A washing machine includes a dewatering shaft for rotating a washing tub, a drive shaft for rotating a pulsator in the washing tub, a coupler configured to move up and down along the dewatering shaft, a solenoid configured to move the coupler, a coupler guide configured to be rotated by contact with the coupler moving upward and to fix a position the coupler or guide the coupler to move to another position by contact with the coupler, a fixed core that surrounds the solenoid, and a moving core disposed at a perimeter of the coupler and configured to move the coupler by magnetic flux. The moving core is configured to, based on moving upward to the fixed core, maintain a gap defined between the moving core and the fixed core within a set range.

A drum washing machine is provided. The drum washing machine includes: an outer tank arranged in a housing; a drum, which is arranged in the outer tank and capable of rotating about a horizontal shaft H; a rotating body, which is arranged at a rear part of the drum, a surface of the rotating body being provided with a projection; and a driving part, configured to drive the drum and the rotating body to coaxially rotate at different rotating speeds. The drum has a baffle arranged on an inner circumferential surface of the drum, which is used as a moving unit configured to move the washings in the drum towards the rotating body. The baffle has gathering surfaces for gathering the washings through a rotation of the drum. The gathering surfaces are inclined so that the side of the rotating body is lagged in a rotation direction of the drum.

A drum washing machine is provided. The drum washing machine includes: an outer tank arranged in a housing; a drum, which is arranged in the outer tank and capable of rotating about a horizontal shaft H; a rotating body, which is arranged at a rear part of the drum, a surface of the rotating body being provided with a projection; and a driving part, configured to drive the drum and the rotating body to coaxially rotate at different rotating speeds. The drum has a baffle arranged on an inner circumferential surface of the drum, which is used as a moving unit configured to move the washings in the drum towards the rotating body. The baffle has gathering surfaces for gathering the washings through a rotation of the drum. The gathering surfaces are inclined so that the side of the rotating body is lagged in a rotation direction of the drum.