Lifting device and dishwasher

Patent metadata

Field	Value
Publication number	US-2016309982-A1
Application number	US-201615137045-A
Country	US
Kind code	A1
Filing date	Apr 25, 2016
Priority date	Apr 24, 2015
Publication date	Oct 27, 2016
Grant date	—

Abstract

A lifting device for displacing a receiver for items to be washed in a dishwasher from an initial position into an end position, or vice versa, includes a blocking device configured to automatically block the receiver for items to be washed in at least one intermediate position between the initial position and the end position. The blocking device includes an actuating element which, when actuated, is configured to unlock the blocking device such that the receiver for items to be washed can be displaced from the initial position to the end position, or vice versa, only for so long as the actuating element remains actuated to unlock the blocking device.

First claim

What is claimed as new and desired to be protected by Letters Patent is set forth in the appended claims and includes equivalents of the elements recited therein:

1 . A lifting device for displacing a receiver for items to be washed in a dishwasher from an initial position into an end position, or vice versa, said lifting device comprising a blocking device configured to automatically block the receiver for items to be washed in at least one intermediate position between the initial position and the end position and including an actuating element which, when actuated, is configured to unlock the blocking device such that the receiver for items to be washed can be displaced from the initial position to the end position, or vice versa, only for so long as the actuating element remains actuated to unlock the blocking device.

2 . The lifting device of claim 1 , wherein the actuating element is mechanically coupled to the blocking device.

3 . The lifting device of claim 1 , wherein the actuating element is coupled to the blocking device using signal technology.

4 . The lifting device of claim 1 , wherein the actuating element is arranged on the receiver for items to be washed.

5 . The lifting device of claim 1 , further comprising a drive device operably connected to the receiver for items to be washed for displacing the receiver for items to be washed.

6 . The lifting device of claim 5 , wherein the drive device comprises an active drive element and/or a passive drive element.

7 . The lifting device of claim 5 , wherein the drive device comprises a gear mechanism.

8 . The lifting device of claim 7 , wherein the gear mechanism is a self-locking worm gear.

9 . The lifting device of claim 7 , wherein the blocking device comprises a magnetic element configured to magnetically block the gear mechanism.

10 . The lifting device of claim 7 , wherein the blocking device comprises an engagement element configured to positively engage in the gear mechanism in order to mechanically block the gear mechanism.

11 . The lifting device of claim 10 , wherein the engagement element is spring-pretensioned in a direction of a gear wheel and/or a toothed rod of the gear mechanism.

12 . The lifting device of claim 10 , wherein the engagement element is configured to be magnetically displaced.

13 . The lifting device of claim 7 , wherein the blocking device comprises a braking element configured to block the gear mechanism by a frictional connection.

14 . The lifting device of claim 13 , wherein the braking element is a friction wheel or a brake shoe.

15 . A dishwasher, comprising:
a receiver for items to be washed; and a lifting device configured to lift the receiver for items to be washed from an initial position into an end position or lower the receiver for items to be washed from an end position into an initial position, said lifting device comprising a blocking device configured to automatically block the receiver for items to be washed in at least one intermediate position between the initial position and the end position and including an actuating element which, when actuated, is configured to unlock the blocking device such that the receiver for items to be washed can be displaced from the initial position to the end position, or vice versa, only for so long as the actuating element remains actuated to unlock the blocking device:

16 . The dishwasher of claim 15 , wherein the actuating element is mechanically coupled to the blocking device.

17 . The dishwasher of claim 15 , wherein the actuating element is coupled to the blocking device using signal technology.

18 . The dishwasher of claim 15 , wherein the actuating element is arranged on the receiver for items to be washed.

19 . The dishwasher of claim 15 , wherein the lifting device includes a drive device operably connected to the receiver for items to be washed for displacing the receiver for items to be washed.

20 . The dishwasher of claim 19 , wherein the drive device comprises an active drive element and/or a passive drive element.

21 . The dishwasher of claim 19 , wherein the drive device comprises a gear mechanism.

22 . The dishwasher of claim 21 , wherein the gear mechanism is a self-locking worm gear.

23 . The dishwasher of claim 21 , wherein the blocking device comprises a magnetic element configured to magnetically block the gear mechanism.

24 . The dishwasher of claim 21 , wherein the blocking device comprises an engagement element configured to positively engage in the gear mechanism in order to mechanically block the gear mechanism.

25 . The dishwasher of claim 24 , wherein the engagement element is spring-pretensioned in a direction of a gear wheel and/or a toothed rod of the gear mechanism.

26 . The dishwasher of claim 24 , wherein the engagement element is configured to be magnetically displaced.

27 . The dishwasher of claim 21 , wherein the blocking device comprises a braking element configured to block the gear mechanism by a frictional connection.

28 . The dishwasher of claim 27 , wherein the braking element is a friction wheel or a brake shoe.

Assignees

• Bsh Hausgeraete Gmbh

Inventors

• Gerstner Norbert
• Isbilen Ersin
• Steck Thomas

Classifications

• A47L15/4263

  Door sealing arrangements · CPC title

• A47L15/507

  Arrangements for extracting racks, e.g. roller supports · CPC title

• A47L15/506 Primary

  Arrangements for lifting racks for loading or unloading purposes · CPC title