Lower rack for a domestic dishwasher having a lower-rack raising means

• US 10,638,913 B2
• Filed: 12/15/2015
• Issued: 05/05/2020
• Est. Priority Date: 12/22/2014
• Status: Active Grant

• Current Assignee: BSH Hausgeraete GmbH (Robert Bosch GmbH)
• Original Assignee: BSH Hausgeraete GmbH (Robert Bosch GmbH)
• Inventors: Gerstner, Norbert, Horsch, Julia, Isbilen, Ersin, Ott, Thomas, Steck, Thomas, Winkler, Ralf
• Primary Examiner(s): Ko, Jason Y
• Application Number:
  US15/533,659
• Publication Number:
  US 20170332879A1
• Time in Patent Office: 1,603 Days
• Field of Search: None
• CPC Class Codes: A47L 15/4202 Water filter means or strainers
• CPC Class Codes: A47L 15/4229 Water softening arrangements
• CPC Class Codes: A47L 15/502 Cutlery baskets
• CPC Class Codes: A47L 15/503 with foldable parts
• CPC Class Codes: A47L 15/504 Arrangements for changing the height of racks
• CPC Class Codes: A47L 15/506 Arrangements for lifting racks for loading or unloading purposes
• CPC Class Codes: A47L 15/507 Arrangements for extracting racks, e.g. roller supports

Abstract

A lower rack for a domestic dishwasher is constructed for being liftable and includes a fixed lower rack element, and a removable lower rack element connectable to the fixed lower rack element and constructed for removal from the fixed lower rack element to thereby unblock access to a bottom area of a washing container of the domestic dishwasher.

Claims

1. A liftable lower rack for a domestic dishwasher having a washing container, the liftable lower rack comprising:

a fixed lower rack element comprising a frame fixedly mounted to a pair of rail assemblies;

an electric motor driven lifting mechanism configured to raise the fixed lower rack element from a lower position inside the washing container into an upper position outside the washing container while maintaining the frame in a horizontal position; and

a removable lower rack element connectable to the fixed lower rack element and constructed for complete removal from the fixed lower rack element to thereby unblock access to a bottom area of the washing container of the domestic dishwasher on condition that the fixed lower rack element is in the lower position inside the washing container.

2. The lower rack of claim 1, wherein the removable lower rack element is embodied as a wire basket, said frame being configured to receive the wire basket.

3. The lower rack of claim 2, wherein the frame is embodied as a circumferential frame.

4. The lower rack of claim 3, further comprising at least one cross-piece to subdivide the circumferential frame.

5. The lower rack of claim 2, wherein the wire basket is configured for suspension in the frame.

6. The lower rack of claim 1, wherein the removable lower rack element is embodied as a removable sub-basket and the fixed lower rack element is embodied as a fixed sub-basket, said removable and fixed sub-baskets being separably fastened directly or indirectly to one another.

7. The lower rack of claim 6, wherein the removable sub-basket is fastened to the fixed sub-basket at a side which faces a front of a housing of the domestic dishwasher.

8. The lower rack of claim 7, further comprising mutually corresponding engaging and receiving elements provided on a butt between the removable and fixed sub-baskets in a depth direction of the domestic dishwasher and constructed to form a separable positive mechanical engagement with one another in and against the depth direction.

9. The lower rack of claim 8, wherein the engaging and receiving elements are embodied in one of two ways, a first way in which the engaging and receiving elements are embodied as a latch and a corresponding nose, with the latch being configured for latching onto the nose, a second way in which the engaging and receiving elements are embodied as a hook and a corresponding wire element of one of the removable and fixed sub-baskets, said hook being configured for hooking into the wire element of the one of the removable and fixed sub-baskets.

10. The lower rack of claim 1, wherein the fixed lower rack element is embodied as a wire basket defined by a wire basket geometry having a recess, said removable lower rack element sized to at least partially cover the recess and, when removed, unblocks the access to the bottom area of the washing container through the recess.

11. The lower rack of claim 10, wherein the wire basket geometry includes the frame embodied as a circumferential frame having an inside configured to form the recess.

12. The lower rack of claim 10, wherein the lower rack element is a cutlery basket, a plate receptacle or a series of spines.

13. The lower rack of claim 2, wherein the removable lower rack element includes a rear wall, a front wall, and two side walls of the wire basket.

14. The lower rack of claim 13, wherein the rear wall of the wire basket of the removable lower rack element is removable via a rotational movement.

15. The lower rack of claim 13, wherein the rear wall of the wire basket of the removable lower rack element is removable via a combination of a translational movement and a rotational movement.

16. A domestic dishwasher, comprising:

a washing container;

a functional unit provided in a container bottom of the washing container;

a lower rack including a fixed lower rack element comprising a frame fixedly mounted to a pair of rail assemblies, and a removable lower rack element constructed for complete removal to thereby unblock access to the functional unit on condition that the fixed lower rack element is inside the washing container; and

an electric motor driven raising mechanism configured to raise the lower rack from a lower position inside the washing container into an upper position outside the washing container while maintaining the lower rack in a horizontal position.

17. The domestic dishwasher of claim 16, wherein the removable lower rack element is separably joined to the fixed lower rack element.

18. The domestic dishwasher of claim 16, wherein the functional unit is a salt reservoir, a hot air exhaust valve, a sieve or a spraying device.

19. The domestic dishwasher of claim 18, wherein the spraying device is a spray arm.