Washing machine
AssigneeLG Electronics Inc.
InventorsDongyoon Kim, Youngjong Kim
Life of this patent
Estimating the term…
Abstract
Provided is a washing machine. The washing machine includes an outer tub, an inner tub, and a pulsator. The pulsator includes a base and a plurality of ribs. The ribs include an upper surface and a side surface. The upper surface extends from the hub to an outer side along a radial direction to meet a circumference of the base. The side surface declines from the upper surface to the base. The side surface includes a first side surface and a second side surface. The first side surface has a boundary with an inner side of the base. The boundary radially diverges outward in a circumference direction. The second side surface extends from the first side surface along the circumference of the base and the upper surface.
Claims20
A washing machine comprising:
- an outer tub holding wash water;
- an inner tub rotatably provided in the outer tub;
- and
- a pulsator rotatably provided in the inner tub, the pulsator comprising:
- a base comprising a hub formed at a center thereof;
- and
- a plurality of ribs protruding from the base, the plurality of ribs comprising:
- an upper surface extending from the hub to an outer side along a radial direction to meet a circumference of the base;
- and
- a side surface declining from the upper surface to the base, the side surface comprising:
- a first side surface having a boundary with an inner side of the base, the boundary radially diverging outward in a circumference direction;
- and
- a second side surface extending from the first side surface along the circumference of the base and the upper surface.
A washing machine comprising:
- an outer tub holding wash water;
- an inner tub rotatably provided in the outer tub;
- and
- a pulsator rotatably provided in the inner tub, the pulsator comprising:
- a first pulsator member formed of metal material;
- and
- a second pulsator member formed of plastic material, having a shape corresponding to the first pulsator member, coupled to a lower side of the first pulsator member, and rotated together with the first pulsator member,
- wherein the first pulsator member comprises:
- a base having a hub formed at the center thereof;
- and
- a plurality of ribs protruding from the base, the plurality of ribs comprising:
- an upper surface extending from the hub to an outer side along a radial direction to meet a circumference of the base;
- and
- a side surface declining from the upper surface to the base, the side surface comprising:
- a first side surface having a boundary with an inner side of the base, the boundary radially extending and diverging outward in a circumferential direction;
- and
- a second side surface extending from the first side surface along the circumference of the base and the upper surface.
A washing machine comprising:
- an outer tub holding wash water;
- an inner tub rotatably provided in the outer tub;
- and
- a pulsator rotatably provided in the inner tub, the pulsator comprising:
- a base comprising a hub formed at the center thereof;
- and
- a plurality of ribs protruding from the base, the plurality of ribs comprising:
- an upper surface extending from the hub to an outer side along a radial direction to meet a circumference of the base;
- and
- a side surface declining from the upper surface to the base, the side surface comprising:
- a first side surface extending radially and diverging outwardly in a circumference direction such that a contact area with laundry is gradually broadened;
- and
- a second side surface forming a curved surface in a body along with the first side surface and extending from the first side surface to meet the upper surface and the circumference of the base, in order to reduce flow resistance caused by the wash water in the inner tub.
Dependencies are inferred from the claim text.