Extended tub for a laundry treating appliance

Patent metadata

Field	Value
Publication number	US-11713530-B2
Application number	US-202117201013-A
Country	US
Kind code	B2
Filing date	Mar 15, 2021
Priority date	Dec 28, 2018
Publication date	Aug 1, 2023
Grant date	Aug 1, 2023

Abstract

A laundry treating appliance having a rotatable basket that defines a treating chamber, a tub for mounting the rotatable basket, a drive assembly mounted to the tub for rotating the basket and a drive motor mounted to the tub for driving the drive assembly. The tub has a lower region comprising a central cavity and a second cavity. The drive assembly is nested in the central cavity and the drive motor is nested in the second cavity for reducing the vertical stack of tub and the motor.

First claim

The invention claimed is:

1. A laundry treating appliance comprising:
a rotatable basket defining a treating chamber;
a tub for mounting the rotatable basket;
a drive assembly mounted to the tub for rotating the basket;
a drive motor mounted to the tub for driving the drive assembly;
the tub comprising a lower region comprising a non-symmetrical plurality of circular rims and radial ribs defining a central cavity about a first circular rim and a second cavity spaced from the central cavity; at least two of the plurality of radial ribs extending from the first circular rim at an acute first angle until a distance between the at least two of the plurality of radial ribs is greater than a diameter of the drive motor, wherein the first angle is between the at least two of the plurality of radial ribs, each of the at least two of the plurality of radial ribs then transitioning at an obtuse second angle for a length to accommodate the diameter of the drive motor, and each of the at least two of the plurality of radial ribs then further transitioning at an obtuse third angle for a length to form the second cavity around the drive motor; and
wherein the drive assembly is nested in the central cavity and the drive motor is nested adjacent the second cavity such that at least a portion of a height of the at least one of the plurality of circular rims extends a length of the drive motor for reducing a vertical stack of the tub and the motor.

2. The laundry appliance of claim 1 , further comprising a third radial rib extending between the at least two of the plurality of radial ribs.

3. The laundry treating appliance of claim 2 , wherein the third radial rib extends between the first circular rim and an outer rim.

4. The laundry treating appliance of claim 3 , wherein the at least one of the plurality of circular rims and the third radial rib is notched to define a flat lower surface of the second cavity.

5. The laundry treating appliance of claim 4 , wherein the drive motor is nested adjacent the flat lower surface.

6. The laundry treating appliance of claim 1 , wherein the second cavity formed around the motor is a six-sided polygon.

7. The laundry treating appliance of claim 1 , wherein at least one of the plurality of radial ribs has an arcuate surface that defines a bottom of the at least one of the plurality of radial ribs.

8. The laundry treating appliance of claim 7 , wherein the drive assembly has an outer profile that is shaped complimentary to the arcuate surface.

9. The laundry treating appliance of claim 1 , wherein the drive assembly further comprises a drive plate for mounting the drive assembly and motor to the tub.

10. The laundry treating appliance of claim 9 , wherein at least one of the plurality of radial ribs extends to the drive plate on the drive assembly.

11. The laundry treating appliance of claim 10 , wherein at least one of the plurality of radial ribs further comprises at least one attachment element for attaching the drive plate to the tub.

12. The laundry treating appliance of claim 4 , wherein the motor comprises a flat surface complimentary to the flat lower surface of the second cavity for allowing at least a portion of the motor to nest in the tub.

13. The laundry treating appliance of claim 12 wherein at least half of the motor is nested in the tub.

14. The laundry treating appliance of claim 1 wherein the tub is formed as a single monolithic component.

15. The laundry treating appliance of claim 1 wherein each of the at least two of the plurality of radial ribs is a mirror image of one another.

16. The laundry treating appliance of claim 1 further comprising at least one straight radial rib extending between the first circular rim and an outer rim.

17. The laundry treating appliance of claim 16 , wherein the at least one straight radial rib and the at least two of the plurality of radial ribs are non-symmetrical.

Assignees

• Whirlpool Co

Inventors

• Farrington Eric K
• Mcallister Karl David
• Sharp Brenner M

Classifications

• D06F37/26 Primary

  Casings; Tubs · CPC title

• D06F21/08

  within an enclosing receptacle · CPC title

• D06F37/12

  adapted for rotation or oscillation about a vertical axis · CPC title

• D06F37/264

  Tubs provided with reinforcing structures, e.g. ribs, inserts, braces · CPC title

• D06F37/30

  Driving arrangements  (control circuits or arrangements D06F34/08) · CPC title