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 along the dewatering shaft to couple or decouple the drive shaft and the dewatering shaft, a solenoid configured to move the coupler, and a coupler guide configured to be rotated by contact with the coupler or to maintain the coupler in the second position. The coupler includes locking protrusions configured to lock onto an upper side of the coupler guide. The coupler guide includes first guide projections disposed on an outer perimeter of the coupler guide and configured to contact one of the locking protrusions to rotate the coupler guide, and second guide projections disposed opposite to the first guide projections and configured to contact another of the locking protrusions to rotate the coupler guide.

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 along the dewatering shaft to couple or decouple the drive shaft and the dewatering shaft, a solenoid configured to move the coupler, and a coupler guide configured to be rotated by contact with the coupler or to maintain the coupler in the second position. The coupler includes locking protrusions configured to lock onto an upper side of the coupler guide. The coupler guide includes first guide projections disposed on an outer perimeter of the coupler guide and configured to contact one of the locking protrusions to rotate the coupler guide, and second guide projections disposed opposite to the first guide projections and configured to contact another of the locking protrusions to rotate the coupler guide.

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 that is configured to move up and down along the dewatering shaft, a solenoid module that moves the coupler upward, a coupler guide configured to be rotated by contact with the coupler when the coupler moves upward, and to maintain a position of the coupler or guide the coupler to another position when the coupler moves downward, and a controller that controls operation of the solenoid module based on applying one or more pulse signals to the solenoid module.

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 that is configured to move up and down along the dewatering shaft, a solenoid module that moves the coupler upward, a coupler guide configured to be rotated by contact with the coupler when the coupler moves upward, and to maintain a position of the coupler or guide the coupler to another position when the coupler moves downward, and a controller that controls operation of the solenoid module based on applying one or more pulse signals to the solenoid module.

A vibration squeeze drum washing machine includes a housing, a barrel, a drum, a machine door, a vibration squeeze device, a turnover mechanism, a mechanical vibrator, a position sensor, a drum motor, a drive device, a water intake valve, a drainage valve, and a control system. The vibration squeeze device is disposed on an inner side of the machine door and is connected to the machine door via the turnover mechanism.

A vibration squeeze drum washing machine includes a housing, a barrel, a drum, a machine door, a vibration squeeze device, a turnover mechanism, a mechanical vibrator, a position sensor, a drum motor, a drive device, a water intake valve, a drainage valve, and a control system. The vibration squeeze device is disposed on an inner side of the machine door and is connected to the machine door via the turnover mechanism.

A vibration squeeze drum washing machine structure; a vibration squeeze device (5) is provided at the inner side of a machine door (4) of the drum washing machine, a turnover mechanism (6) located below the machine door (4) mechanically connects the vibration squeeze device (5) to the machine door (4) such that the vibration squeeze device (5) can be turned up and down by 90 degrees at the inner side of the machine door (4); when being at an upturning position, the vibration squeeze device (5) is parallel to the door plane, when being at a downturning position, the vibration squeeze device (5) is at a right angle of 90 degrees to the door plane, and the vibration squeeze device (5) stretches underneath the drum (3). A mechanical vibrator (7) is installed in the inner cavity of the vibration squeeze device (5), when the vibration squeeze device (5) downturns to stretch into the drum (3) and start the mechanical vibrator (7), the vibration squeeze device (5) forms a vibration squeeze washing effect on the laundry in the drum (3). This vibration squeeze drum washing machine structure may significantly reduce the washing time of the drum washing machine, and has a better cleanliness and a better energy-saving environmental protection effect.

The present invention relates to a pulsator device for a washing machine, wherein the pulsator device is able to generate rotating water flow and vertical water flow. The pulsator device for a washing machine includes: a first pulsator provided with a recessed pulsator accommodation groove in the top surface thereof, and is formed to be able to rotate with respect to the central axis of the pulsator accommodation groove; a second pulsator which is installed in the pulsator accommodation groove and provided to be able to rotate or move vertically; and a connecting member installed in the pulsator accommodation groove to connect the first pulsator to the second pulsator, and causing the second pulsator to be inclined or horizontal with respect to the first pulsator according to the rotation direction of the first pulsator.

The present invention relates to a pulsator device for a washing machine, wherein the pulsator device is able to generate rotating water flow and vertical water flow. The pulsator device for a washing machine includes: a first pulsator provided with a recessed pulsator accommodation groove in the top surface thereof, and is formed to be able to rotate with respect to the central axis of the pulsator accommodation groove; a second pulsator which is installed in the pulsator accommodation groove and provided to be able to rotate or move vertically; and a connecting member installed in the pulsator accommodation groove to connect the first pulsator to the second pulsator, and causing the second pulsator to be inclined or horizontal with respect to the first pulsator according to the rotation direction of the first pulsator.

A laundry treating apparatus comprising a tub; a drum mounted in the tub; a passage provided in the drum and configured to allow water to flow from a first portion of the drum to a second portion of the drum; an agitator rotatably provided in the drum and configured to agitate the water held in the drum; and a filter device configured to filter the water flowing through the passage, wherein the filter includes a body defining a storage space; an inlet configured to allow water into the body from the passage; a filter provided in the body and configured to filter foreign substances from the water drawn into the body and release the water into the drum; and a plurality of projections projected from the body and configured to hold the filtered foreign substances to the body, wherein a cross-sectional area of the projected unit is 25% to 50% of a cross sectional area of the body area.