IP Library Granted Patent US 10,702,125
Granted Patent B2
US 10,702,125 · App. 15/720,573 · Granted Jul 7, 2020

Retracting dishwasher rack system

Inventors: Eric Scalf (Louisville, KY); Robert Digman (Goshen, KY)
Assignee: MIDEA GROUP CO., LTD.
A47L15/507A47L15/0084A47L15/4259A47L15/4251
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Quick Facts
Patent No.
US 10,702,125
App. No.
15/720,573
Granted
Jul 7, 2020
Kind
B2
Abstract

A retracting rack for an appliance such as a dish washing appliance. The rack may be positionable between a stowed position and a deployed position. A spring may drive the rack towards the stowed position. A locking mechanism may be used to secure the rack in one or more positions.

Claims (38)

1. A dish washing appliance comprising:

a dishwasher tub includes one or more rails having geared teeth;

a dishwasher rack having at least one elongated shaft and one or more torsion springs connected thereto, wherein the dishwasher rack is positionable between a stowed position in the dishwasher tub and a deployed position, wherein the deployed position is different from the stowed position;

wherein the at least one elongated shaft includes one or more geared wheels rotationally fixed to the at least one shaft, wherein the one or more geared wheels and the at least one shaft rotationally translate together along the geared teeth of the one or more rails between the stowed position and the deployed position;

wherein the one or more torsion springs are secured to the at least one shaft and wherein translating the dishwasher rack from the stowed position towards the deployed position rotates the at least one shaft and correspondingly increases the spring force of the one or more torsion springs urging the dishwasher rack to return towards the stowed position; and

wherein the dishwasher rack further includes a gearbox, wherein the one or more torsion springs are positioned within the gearbox.

2. The dish washing appliance of claim 1 wherein the dishwasher rack further includes a locking mechanism securing the dishwasher rack in the deployed position.

3. The dish washing appliance of claim 2 wherein the locking mechanism is a pawl and ratchet engagement.

4. The dish washing appliance of claim 1 wherein the dishwasher rack is an upper dishwasher rack.

5. The dish washing appliance of claim 1 wherein the one or more torsion springs are a spiral spring.

6. The dish washing appliance of claim 1 wherein the dishwasher rack includes a damper to slow the translation of the dishwasher rack from the deployed position towards the stowed position.

7. The dishwashing appliance of claim 6 wherein the damper is positioned within the gearbox.

8. The dish washing appliance of claim 6 wherein the damper is a rotational damper attached to the at least one shaft, wherein the rotational damper slows down the rotation of the at least one shaft and the corresponding translation of the dishwasher rack from the deployed position towards the stowed position.

9. The dishwashing appliance of claim 1 further comprising one or more slides connecting the dishwasher rack to the dishwasher tub.

10. A dishwasher rack for a dish washing appliance comprising:

a basket capable of occupying a stowed position in the dish washing appliance;

one or more elongated shafts connected to the basket having one or more geared wheels fixed relative to the one or more shafts, the one or more geared wheels rotationally engaging one or more rails with corresponding geared teeth;

one or more torsion springs secured to the one or more elongated shafts;

a gearbox, wherein the one or more torsion springs are positioned within the gearbox; and

when the basket and the one or more shafts translate from the stowed position thereby rotating the one or more shafts relative to the one or more rails, tension in the one or more torsion springs increases and urges the basket and the one or more shafts towards the stowed position.

11. The dishwasher rack of claim 10 further comprising a damper to slow the translation of the basket and the one or more shafts towards the stowed position.

12. The dishwasher rack of claim 11 wherein the damper is a rotational damper attached to the one or more elongated shafts.

13. The dishwasher rack of claim 10 further comprising a locking mechanism.

14. The dishwasher rack of claim 13 wherein the locking mechanism is a pawl and ratchet engagement.

15. The dishwasher rack of claim 10 wherein the one or more torsion springs is a spiral spring.

16. A dish washing appliance comprising:

a dishwasher tub includes one or more rails having geared teeth;

a dishwasher rack having at least one elongated shaft and one or more torsion springs connected thereto, wherein the dishwasher rack is positionable between a stowed position in the dishwasher tub and a deployed position, wherein the deployed position is different from the stowed position;

wherein the at least one elongated shaft includes one or more geared wheels rotationally fixed to the at least one shaft, wherein the one or more geared wheels and the at least one shaft rotationally translate together along the geared teeth of the one or more rails between the stowed position and the deployed position;

wherein the one or more torsion springs are secured to the at least one shaft and wherein translating the dishwasher rack from the stowed position towards the deployed position rotates the at least one shaft and correspondingly increases the spring force of the one or more torsion springs urging the dishwasher rack to return towards the stowed position;

wherein the dishwasher rack includes a damper to slow the translation of the dishwasher rack from the deployed position towards the stowed position; and

wherein the dishwasher rack further includes a gearbox, wherein the damper is positioned within the gearbox.

17. The dish washing appliance of claim 16 wherein the dishwasher rack further includes a locking mechanism securing the dishwasher rack in the deployed position.

18. The dish washing appliance of claim 17 wherein the locking mechanism is a pawl and ratchet engagement.

19. The dish washing appliance of claim 16 wherein the dishwasher rack is an upper dishwasher rack.

20. The dish washing appliance of claim 16 wherein the one or more torsion springs are a spiral spring.

21. The dish washing appliance of claim 16 wherein the damper is a rotational damper attached to the at least one shaft, wherein the rotational damper slows down the rotation of the at least one shaft and the corresponding translation of the dishwasher rack from the deployed position towards the stowed position.

22. The dishwashing appliance of claim 16 further comprising one or more slides connecting the dishwasher rack to the dishwasher tub.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Oct 9, 2017
From: SCALF, ERIC; DIGMAN, ROBERT
To: MIDEA GROUP CO., LTD.
Reel/Frame 043814/0172 →
Continuity (1)
Related Publication 20190099057A1 · Apr 4, 2019