Roller device and dishwasher including the same
AssigneeSamsung Electronics Co., Ltd.
InventorJin Doo Kim
Life of this patent
Estimating the term…
Abstract
A roller device having improved rolling performance and a dishwasher including the same. The dishwasher includes a cabinet including a washing tub, a basket provided inside the washing tub, a shaft unit coupled to the basket and including a shaft, a plurality of balls rotating along an outer circumferential surface of the shaft, and a roller rotatably coupled to the shaft and including a plurality of seating portions spaced apart from each other to seat the plurality of balls, wherein at least one of the plurality of seating portions receives two or more of the plurality of balls.
Claims19
A dishwasher comprising:
- a cabinet including a washing tub;
- a basket provided inside the washing tub, comprising:
- a plurality of horizontal wires;
- and
- a plurality of vertical wires;
- a shaft unit coupled to the basket and including a shaft;
- a plurality of balls rotating along an outer circumferential surface of the shaft;
- a roller rotatably coupled to the shaft and including a plurality of seating portions spaced apart from each other to seat the plurality of balls;
- and
- a coupling member configured to connect the roller and the shaft,
- wherein at least one of the plurality of seating portions receives two or more of the plurality of balls, wherein the two or more balls are disposed adjacent to each other without a separator therebetween in the at least one seating portion.
A dishwasher comprising:
- a cabinet including a washing tub;
- a basket provided inside the washing tub;
- and
- a roller device configured to withdraw the basket from the washing tub,
- wherein the roller device includes:
- a shaft unit including a shaft;
- a plurality of balls configured to rotate along an outer circumferential surface of the shaft;
- a roller, including:
- a wheel portion configured to be rotatable about the shaft;
- and
- a plurality of seating portions, each seating portion having an opened end to prevent the plurality of balls from being constrained and recessed outward from an inner circumferential surface of the wheel portion,
- wherein at least one of the plurality of seating portions receives two or more of the plurality of balls, wherein the two or more balls are disposed adjacent to each other without a separator therebetween in the at least one seating portion;
- and
- a coupling member configured to connect the roller and the shaft, and
- wherein the outer circumferential surface of the shaft in contact with the plurality of balls forms a straight line.
A roller device comprising:
- a plurality of balls;
- a shaft unit including a shaft including a cylindrical shape such that the plurality of balls rotate along an outer circumferential surface thereof;
- a roller rotatably coupled to the shaft and including a plurality of seating portions spaced apart from each other to seat the plurality of balls;
- and
- a coupling member configured to connect the roller and the shaft,
- wherein two or more of the plurality of balls are seated adjacent to each other without a separator therebetween in each of the plurality of seating portions, respectively.
Dependencies are inferred from the claim text.