Dishwasher basket assembly including lift mechanism

• US 5,115,822 A
• Filed: 03/20/1991
• Issued: 05/26/1992
• Est. Priority Date: 03/20/1991
• Status: Expired due to Fees

• Current Assignee: Will E. Nichols
• Original Assignee: Will E. Nichols
• Inventors: Nichols, Will E.
• Primary Examiner(s): Stinson, Frankie L.
• Application Number:
  US07/672,451
• Time in Patent Office: 433 Days
• Field of Search: 134/135, 134/200, 134/137, 134/164, 134/201, 134/143, 134/142, 312/272, 312/269, 312/312, 312/294, 211/126
• US Class Current: 134/135
• CPC Class Codes: A47L 15/506 Arrangements for lifting racks for loading or unloading purposes

Abstract

A dishwasher lower basket assembly including a dish holding basket and a lift mechanism for elevating the basket above the dishwasher door to a position adjacent the upper dish holding basket of the dishwasher.

Claims

1. A lower basket assembly for a dishwasher having individual upper and lower baskets comprising:

a lower basket;

lift means attached to the lower basket adapted to be supported on an inner surface of a door of said dishwasher when in an open position for moving said lower basket between a first position proximate said inner surface with said lift means in a lower most position and a second position elevated above said inner surface with said lift means in an elevated position and said upper basket positioned within a washing compartment of said dishwasher.

2. The lower basket assembly as defined in claim 1 wherein said lift means is a sissors type lift.

3. The lower basket as defined in claim 2 including first track means mounted on opposing sides of said basket, an upper end of said sissors type lift mounted to said first track means, second track means mounted to the lower end of said sissors type lift, said first and second track means providing for extension and retraction of said sissors type lift.

4. The lower basket assembly as defined in claim 3 wherein said first track means includes two pair of tracks, one pair of tracks extending along each of said opposing sides of the lower basket, said basket including two pair of slide members, one pair of slide members being mounting spaced apart on each of the opposing sides of the basket, each pair of slide members on each opposing side received in one of the tracks of said respective pair of tracks, the upper end of said sissor type lift mounted to the second track of each of said pair of tracks.

5. The lower basket assembly as defined in claim 3 wherein said lift means includes latch means for holding said lift means in at least said elevated position.

6. A lower basket assembly for a dishwasher comprising:

a frame including means for moving said frame between a position within said dishwasher and a position external of said dishwasher supported on an inner surface of a door of said dishwasher when in an open horizontal position;

a lower basket for holding dishes; and

means for attaching said lower basket to said frame adapted to selectively position said lower basket in a lower position adjacent said inner surface of said door and in a position elevated from said inner surface of said door with said frame positioned on said inner surface of said door.

7. The lower basket assembly as defined in claim 6 wherein said means adapted to selectively position said lower basket in the lower position and said elevated position includes a sissors type lift having ends of two pair of upper support arms attached to track means on said lower basket and ends of two pair of lower support arms attached to said frame.

8. The lower basket assembly as defined in claim 7 wherein the ends of one of said pair of upper support arms is pivotably mounted at a fixed location on said track means on said lower basket, the ends of the second of the pair of the upper support arms is pivotably and slidably mounted to said track means on the lower basket, the ends of one of said pair of lower support arms are pivotably mounted at a fixed location on said frame and the ends of the second of the pair of lower support arms are pivotably and slidably mounted to said frame.

9. The lower basket assembly as defined in claim 8 wherein said lower basket is mounted to said track means for slidable movement.

10. The lower basket assembly as defined in claim 7 further including latch means associated with said lift for releasably holding said lower basket in said elevated position.

11. A lower basket assembly for a dishwasher comprising:

lower basket means for holding dishes; and

lift means for selectively moving and positioning said lower basket in a lowermost position and an uppermost position, said lift means including means for moving and supporting said lift means between locations within a washing compartment of the dishwasher and on an inner surface of a door of the dishwasher when in an open substantially horizontal position.

12. The lower basket assembly as defined in claim 11 wherein said means for moving and supporting said lift means includes a frame having roller means for engaging said inner surface of the door and ledge means associated with the washing compartment of the dishwasher, said lift means including a sissors type lift attached to said frame and to said lower basket means, and latch means for releasably holding said lower basket in at least the uppermost position.

13. The lower basket assembly as defined in claim 12 wherein said basket means is mounted to said lift by way of track means providing for limited reciprocal horizontal movement of said lower basket means independently of said frame and lift.

14. The lower basket assembly as defined in claim 13 further including means for biasing said lift in a direction toward the uppermost position of the lower basket means.