Plastic tub for a washing machine or a washer dryer
AssigneeBSH Bosch und Siemens Hausgerate GmbH
InventorsChristian Quandt, Holger Reichner
Life of this patent
Estimating the term…
Abstract
A plastic tub for a washing machine includes a cylindrical casing; and an end face wall sealing the cylindrical casing. The end face including a bearing mount for a shaft of a laundry drum and radially-aligned reinforcing ribs molded into the end face wall. The reinforcing ribs begin at the bearing mount and branch in a Y-shape along their radial extent.
Claims20
A plastic tub for a washing machine having a front opening for loading and unloading items to be washed, the tub consisting of:
- a plastic cylindrical casing including an end face wall formed to include a bearing mount adapted to receive a shaft of a drum rotatable within the tub;
- and
- a plurality of plastic Y-shaped reinforcing ribs integrally formed with said end face wall and extending radially outwardly from said bearing mount.
A tub for a washing machine comprising:
- a plastic cylindrical casing;
- and
- a plastic end face wall sealing one end of the plastic cylindrical casing, the plastic end face wall including a bearing mount for a shaft of a drum adapted for rotation within said cylindrical casing, and a plurality of plastic reinforcing ribs integrally formed with said end face wall, said plurality of plastic reinforcing ribs extending in a radial direction from said bearing mount, each of said plurality of plastic reinforcing ribs branching into a Y-shape, wherein node points of respective ones of said plurality of plastic reinforcing ribs are alternately arranged on two circular lines arranged concentric to said bearing mount.
A plastic tub for a washing machine comprising:
- a plastic cylindrical casing;
- and
- a plastic end face wall sealing said cylindrical casing, said plastic end face wall formed to include a bearing mount adapted to receive a shaft of a drum locatable within said cylindrical casing, and a plurality of plastic reinforcing ribs integrally formed with the end face wall, said reinforcing ribs extending in a radial direction from said bearing mount, each of said plastic reinforcing ribs branching into a Y-shape, wherein a height, width and wall strength of said plurality of plastic reinforcing ribs and a wall strength of said end face wall are attuned to one another such that rigidity of said end face wall increases evenly from an outer edge of said end face wall to said bearing mount;
- and
- transverse ribs extending between said reinforcing ribs, molded into said end face wall and forming a closed ring.
A method of making a tub for a washing machine wholly of plastic material comprising:
- (a) forming a substantially-cylindrical plastic casing including an end face wall and a bearing mount adapted to receive a shaft;
- (b) integrally forming a plurality of plastic reinforcing ribs in the end face wall extending radially outwardly from, and symmetrically spaced about, the bearing mount, each of said plurality of reinforcing ribs formed in a Y-shape.
Dependencies are inferred from the claim text.