EP3082558A1

EP3082558A1 - Lifting device and water-bearing domestic appliance

Info

Publication number: EP3082558A1
Application number: EP14812746.7A
Authority: EP
Inventors: Norbert Gerstner; Marco Gleixner; Franz Kiechle
Original assignee: BSH Hausgeraete GmbH
Current assignee: BSH Hausgeraete GmbH
Priority date: 2013-12-20
Filing date: 2014-12-17
Publication date: 2016-10-26
Anticipated expiration: 2034-12-17
Also published as: CN105792722A; US10226161B2; WO2015091646A1; ES2641139T3; US20170027413A1; DE102013226910A1; PL3082558T3; EP3082558B1

Abstract

The invention relates to a lifting device (13) for a holder (11) for items to be washed, which holder for items to be washed is comprised by a water-bearing domestic appliance (1), wherein the holder (11) for items to be washed can be moved selectively into a washing container (2) of the water-bearing domestic appliance (1) or or out of said washing container, wherein the lifting device (13) is designed to lift the holder (11) for items to be washed when the holder for items to be washed is moved out of the washing container (2) and to lower the holder for items to be washed when the holder for items to be washed is moved into the washing container (2), wherein the lifting device (13) has a driving apparatus (14) and a control apparatus (15), wherein the control apparatus (15) is designed, in the event of manual movement of the holder (11) for items to be washed, to control the driving apparatus (14) in such a way that the driving apparatus (14) supports the manual movement of the holder (11) for items to be washed by means of a supporting force.

Description

Lifting device and water-conducting household appliance

The present invention relates to a lifting device for a Spülgutaufnahme a water-conducting household appliance and a water-conducting household appliance. A dishwasher has a washing container and at least one in the

Rinsing container into or out of this displaceable Spülgutaufnahme.

In particular, the dishwasher can have a plurality of washware receptacles arranged one above the other, for example a lower basket, an upper basket or a cutlery basket. Since the lower basket is disposed near a bottom of the washing container, loading and unloading of the lower basket requires the user to kneel or stoop to the lower basket.

The document WO 2005/104924 A1 describes a lifting device for a

Lower basket of a dishwasher. With the aid of the lifting device, the lower basket can be raised from a lower position to an upper position or lowered from the upper position to the lower position.

Against this background, an object of the present invention is to provide an improved lifting device.

Accordingly, a lifting device for a Spülgutaufnahme a water-conducting household appliance is proposed, wherein the Spülgutaufnahme is optionally in a washing container of the water-conducting household appliance in or out of this displaced. The lifting device is adapted to lift the Spülgutaufnahme when herausverlagern from the washing and lower when you put in the sink in the sink. The lifting device has a drive device and a control device, wherein the control device is adapted to the

Drive device to control in a manual displacement of the Spülgutaufnahme such that the drive means supports the manual displacement of the Spülgutaufnahme with an assisting force. The water-conducting domestic appliance is preferably a dishwasher. In particular, the drive device can be set up to actuate the drive device in the case of a manual displacement of the washware receptacle in such a way that the drive device can manually displace the washware receptacle with a

Support torque supported. The Spülgutaufnahme is preferably a lower Spülgutaufnahme or a lower basket of the dishwasher. Above the lower Spülgutaufnahme can be arranged in the washing an upper Spülgutaufnahme or upper basket or cutlery basket. Due to the fact that the drive device only supports manual displacement and does not automatically move the washware receptacle out of the wash tub or into it, an undesired movement, for example an undesired complete shifting out of the washing machine, is caused

Spülgutaufnahme reliably prevented from the washing. As a result, there is no risk of injury to the user. In particular, the lifting device is adapted to the lower Spülgutaufnahme to the same height as the upper

To move Spülgutaufnahme and simultaneously before the upper Spülgutaufnahme.

According to one embodiment, the control device is adapted to the

Drive device to control in a manual displacement of Spülgutaufnahme in response to a manual actuation force. In particular, the assist force is proportional to the manual actuation force. Preferably, there is a direct proportionality between the manual

Operating force and the supporting force. That is, the higher the manual

Actuating force is, the higher is the support force spent by the drive means. This results in a particularly high ease of use.

According to a further embodiment, the lifting device has a

Sensor device for detecting the manual operating force.

The sensor device may be part of the drive device or the

Be control device. Preferably, the drive device, the control device and the sensor device are a common compact module. As a result, the lifting device can be used even in confined spaces. According to a further embodiment, the sensor device has a

Torque sensor on.

As a result, the manual operating force applied by the user during manual displacement can be determined particularly simply and accurately. The control device preferably determines the required assistance force on the basis of an output signal of the torque sensor.

According to a further embodiment, the torque sensor is arranged on or on an output shaft of the drive device.

As a result, a simple and space-saving installation of the torque sensor is possible. Due to the direct mounting of the torque sensor on or on the output shaft is applied by the user manual actuation force or one of

User applied torque particularly accurately determinable.

According to a further embodiment, the control device is set up to control the drive device in such a way that the washware receptacle remains in its current position when the manual actuation force ceases to exist. In the present or last position, the position in which the user no longer applies any manual actuating force to the washware receptacle is to be understood here. In particular, for example, in a state in which the Spülgutaufnahme is partially out of the washing or out into this, the

Control means drive the drive means so that the Spülgutaufnahme is held in the last position. In a renewed manual relocation of the

Spülgutaufnahme brings the drive device back to the support force.

According to a further embodiment, the drive device can be locked in the current position.

For this purpose, the drive device may have an optional locking device. The locking device may for example have a catch or a brake. According to a further embodiment, the drive device has a servomotor.

In particular, the drive device may be a servomotor. As a result, a precise control of the drive device is possible because the servo motor always transmits a rotational position of the output shaft to the control device.

According to a further embodiment, the servomotor is arranged in or on a side wall of the water-conducting household appliance. Preferably, the servomotor is arranged between a side wall of the washing container and the side wall of the household appliance. In particular, is also the

Control device positioned on or in the side wall of the water-conducting household appliance. This results in a particularly space-saving design of

Lifting device.

According to a further embodiment, the lifting device has a swivel arm for displacing the washware receptacle, wherein the swivel arm is pivotably attached to the washing container of the water-conducting household appliance and to the washware receptacle.

With the help of the swivel arm, the Spülgutaufnahme pendeiförmig from the

Rinsing out or in this are moved into it. In particular, this allows the Spülgutaufnahme be shifted to the same height and before the upper Spülgutaufnahme. One of the pivot arms is rotatably coupled to the output shaft of the drive device.

According to a further embodiment, the lifting device on two spaced apart pivot arms. The pivot arms are preferably spaced from each other attached to the Spülgutaufnahme. In particular, end portions of the pivot arms are pivotally mounted on the washing container. The swivel arms are moved into the Spülbehälter hineinverlagerten Condition of Spülgutaufnahme preferably in the direction of a rear wall of the

Rinsing container inclined.

According to a further embodiment, the lifting device has a

Rail device, along which the pivot arm is guided.

As a result, the Spülgutaufnahme be moved particularly far out of the washing out. This allows a more comfortable loading and unloading of Spülgutaufnahme possible. According to a further embodiment, the lifting device with the

Spülgutaufnahme operatively connected rack and a mesh with the rack pinion on. The pinion is operatively connected to the drive device.

The rack is preferably curved. The rack is in particular

part-circular and is pivotally attached to the washing container at a center of the circular shape. The rack is also preferably coupled in addition to the Spülgutaufnahme. The pinion is in particular rotationally fixed with the

Output shaft of the drive device coupled. According to a further embodiment, the rack is arcuately curved.

In particular, the rack is curved in a circular arc. The rack may for example have the shape of a quarter circle. Furthermore, a water-conducting household appliance is proposed with such a lifting device.

The water-conducting domestic appliance is preferably a dishwasher. Further possible implementations of the invention also include not explicitly mentioned combinations of before or below with respect to the

Embodiments described features or embodiments. It is the Professional also add individual aspects as improvements or additions to the respective basic form of the invention.

Further advantageous embodiments and aspects of the invention are the subject of the dependent claims and the embodiments of the invention described below. Furthermore, the invention will be explained in more detail by means of preferred embodiments with reference to the attached figures.

Show it

Fig. 1 is a schematic sectional view of an embodiment of a

water-conducting household appliance;

Fig. 2 is a further schematic sectional view of the water-bearing

Household appliance according to FIG. 1;

Fig. 3 is a schematic partial sectional view of the water-conducting household appliance according to Fig. 1;

Fig. 4 is a schematic sectional view of another embodiment of a

water-conducting household appliance;

Fig. 5 is a schematic sectional view of another embodiment of a

water-conducting household appliance; and

Fig. 6 is a schematic sectional view of another embodiment of a

water-conducting household appliance.

In the figures, the same or functionally identical elements have been given the same reference numerals, unless stated otherwise. FIGS. 1 and 2 each show a schematic sectional view of a

Embodiment of a water-conducting household appliance 1. The water-conducting domestic appliance 1 is preferably a dishwasher. The household appliance 1 has a washing container 2, which is closed by a door 3, in particular waterproof. For this purpose, between the door 3 and the washing container 2 a

Be provided sealing device. The washing container 2 and the door 3 can a

Rinse chamber 4 of the household appliance 1 form for rinsing dishes. The washing container 2 may be arranged inside a housing 5 of the household appliance 1. The door 3 is shown in Fig. 1 in its open position. By panning for one a lower end of the door 3 provided pivot axis, the door 3 can be closed or opened.

The washing container 2 has a bottom 6, one opposite the bottom 6

arranged ceiling 7 and one of the door 3 opposite arranged rear wall 8. Furthermore, the washing compartment 2 has side walls 9, 10 arranged opposite one another. The washing container 2 is preferably cuboid. The washing container 2 is preferably made of a metal material, in particular of a metal sheet. The bottom 6 may also be made of a plastic material. The household appliance 1 has at least one Spülgutaufnahme 1 1. The

Spülgutaufnahme 1 1 is preferably box-shaped. A bottom and side walls of the Spülgutaufnahme 1 1 are lattice. Preferably, the household appliance 1 has several Spülgutaufnahmen 1 1, 12. The number of Spülgutaufnahmen 1 1, 12 is arbitrary. In Fig. 1, a lower Spülgutaufnahme 1 1 or a lower basket and an upper Spülgutaufnahme 12 or an upper basket of the household appliance 1 are shown. The

Household appliance 1 may further comprise a cutlery basket. The Spülgutaufnahmen 1 1, 12 are preferably arranged one above the other in the washing compartment 2. each

Spülgutaufnahme 1 1, 12 is either in the washing 2 in or out of this displaced. At the Spülgutaufnahmen 1 1, 12, a handle 30 may be provided in each case.

The household appliance 1 comprises a lifting device 13, which is adapted to raise the lower Spülgutaufnahme 1 1 when herausverlagern from the washing container 2 and lower when being shifted into the washing compartment 2. As shown in FIG. 3, the lifting device 13 has a drive device 14 and a control device 15. The drive device 14 comprises a servomotor 16 or is designed as a servomotor 16. The control device 15 is connected to the drive device 14 via a

Control line 17 connected. Via the control line 17, a power supply of the drive device 14 can take place. The drive device 14 may alternatively

be driven pneumatically or hydraulically. The drive device 14

or the servomotor 16 is in or on a side wall 18 of the

water-conducting household appliance 1 arranged. As shown in FIG. 3, the

Drive device 14 and the control device 15 between the side wall 10 of the Rinse container 2 and the side wall 18 of the housing 5 of the household appliance 1 positioned. The control device 15 can furthermore be formed integrally with the drive device 14. This results in a particularly compact construction of the

Lifting device 13. In particular, the control device 15 operates independently, that is, it operates preferably independently of a control device of the water-conducting household appliance. 1 The control device of the household appliance 1 can control, for example, a drain pump and / or a heating pump.

Fig. 1 shows the Spülgutaufnahme 1 1 in her hineinverlagerten in the washing container 2 initial state. Fig. 2 shows the Spülgutaufnahme 1 1 in their from the

Rinse tank 2 shifted final state. In the herausverlagerten state, the lower Spülgutaufnahme 1 1 is at least partially disposed in front of the upper Spülgutaufnahme 12. The control device 15 is set up to control the drive device 14 during a manual displacement of the washware receptacle 1 1 in such a way that the drive device 14 supports manual displacement of the washware receptacle 1 1 with an assisting force. At the Spülgutaufnahme can both sides a

Lifting device 13 may be provided, preferably only one of the two

Lifting devices 13 has a drive device 14. Alternatively, both lifting devices 13 may comprise a drive device 14. For lifting and lowering of the Spülgutaufnahme 1 1 when herausverlagern from the washing or Hineinverlagern in this, the lifting device 13, a rack 19 on. Further, the lifting device 13 comprises a provided on the side wall 9, 10 pinion 20. The pinion 20 is rotatably connected to an output shaft 21 of the drive device 14 shown in FIG. 3. The rack 19 is curved in particular arcuately. Preferably, the rack 19 is curved in a circular arc. As shown in FIGS. 1 and 2, the rack 19 may have the shape of a quarter circle. The rack 19 is pivotally mounted in particular at a center 32 of its circular arc shape with the side wall 9, 10. The attachment can be done for example by means of a rivet or a bolt. Furthermore, the rack 19 at an attachment point 33 is pivotally connected to the Spülgutaufnahme 1 1. The attachment point 33 is preferably positioned circumferentially on the rack 19. At the attachment point 33, the rack 19 can be riveted, screwed or bolted with the Spülgutaufnahme 1 1, for example. Furthermore, the lifting device 13 has a swivel arm 22. The pivot arm 22 is pivotally attached to a side wall 9, 10 of the washing compartment 2. One

Fastening element 23 of the swivel arm is preferably arranged with respect to the bottom 6 of the washing container 2 at a same height as the center 32 of the

Rack 19. The fastener 23 may be, for example, a rivet. With an end portion applied to the fastening element 23, the swivel arm 22 is pivotably attached to the lower washware receptacle 11.

Furthermore, a rail device 31 can optionally be provided on the washware receptacle 11. With the help of the rail device 31, the Spülgutaufnahme 1 1 in the raised state shown in FIG. 2 even further from the washing compartment 2 is displaced out.

The lifting device 13 may include a sensor device 24 for detecting a manual operating force. The manual actuation force is applied to the handle 30 by the user. The sensor device 24 may be an integral part of the drive device 14. Alternatively, the sensor device 24 may be more integral

Be part of the controller 15. The sensor device 24 preferably has a torque sensor 25. The torque sensor 25 is on or at

Output shaft 21 of the drive device 14, in particular the servo motor 16, respectively. The control device 15 determines from a signal of

Torque sensor 25, the manual operating force.

The function of the lifting device 13 will be explained below. To move the Spülgutaufnahme 1 1 from the washing 2 a user grasps the handle 30 of the Spülgutaufnahme 1 1 and moves them out of the washing compartment 2 out. When shifting out the Spülgutaufnahme 1 1 from the washing compartment 2, as shown in Fig. 1 by means of arrows 26, the control device 15 controls the drive means 14 in response to the manual operating force. That means the higher of the

User applied manual actuation force, the higher the of the

Drive device 14 generated support force. In particular, the

Support force proportional to the manual actuation force. Once on the Spülgutaufnahme 1 1 no manual actuation force is applied, the control device 15 switches off the drive device 14, so that the

Spülgutaufnahme 1 1 remains in its current or last position. In particular, the drive device 14 can be controlled by the control device 15 so that the Spülgutaufnahme 1 1 is held by the drive device 14 in the last position in which a manual actuation force was applied to the Spülgutaufnahme 1 1. Furthermore, the drive device 14 can be locked in the current position. For this purpose, the drive device 14 may have a locking element.

FIG. 4 shows the water-bearing household appliance 1 with a further embodiment of the lifting device 13. The lifting device 13 according to FIG. 4 differs from the lifting device 13 according to FIGS. 1 to 3 in that instead of the lifting device 13 according to FIGS

Swivel arm 22 and the rack 19 two spaced-apart pivot arms 27, 28 are provided. In Fig. 4, the Spülgutaufnahme 1 1 is shown both in her hineinverlagerten in the washing container 2 and in her herausverlagerten from the washing container 2 position. Each pivot arm 27, 28 is pivotally mounted to the Spülgutaufnahme 1 1 with a respective end portion 34, 35. The

End portions 34, 35 are spaced from each other to the Spülgutaufnahme 1 1 attached. The pivot arms 27, 28 are arranged so that they are in the direction of

Rear wall 8 of the washing container 2 are inclined. The pivot arm 27 is movably attached to the side wall 9, 10 with an end section 36 facing away from the end section 34. The end portion 36 may be riveted or bolted to the side wall 9, 10. The pivot arm 28 is fixedly connected to the output shaft 21 of the drive device 14 at an end section 37 remote from the end section 35. The functionality of the lifting device 13 according to FIG. 4 corresponds to the functionality of the lifting device 13 according to FIGS. 1 to 3.

FIG. 5 shows the water-conducting household appliance 1 with a further embodiment of the lifting device 13. The lifting device 13 according to FIG. 5 differs from the lifting device 13 according to FIG. 4 in that a rail device 29 is provided on the washware receptacle 11. In the Spülgutaufnahme 1 1 38 items, such as plates, arranged. The pivot arms 27, 28 are with their

End portions 34, 35 spaced apart and pivotable on the

Rail device 29 attached. The pivot arm 27 is further with its end portion 36 pivotally mounted on the side wall 9, 10 of the washing compartment 2. Of the

Swivel arm 28 is non-rotatably connected with its end portion 37 with the output shaft 21 of the drive device 14 operatively connected.

To relocate the Spülgutaufnahme 1 1 from the washing container 2, this is initially along the rail means 29 relative to the pivot arms 27, 28 moves. Upon further shifting out of the Spülgutaufnahme 1 1 from the washing compartment 2, the lifting device 13 supports the movement of the as explained above

Spülgutaufnahme 1 1 with the supporting force. This makes it possible in particular to guide the lower Spülgutaufnahme 1 1 to the arranged above this upper Spülgutaufnahme 12 around. In shifted out of the washing container state of the lower Spülgutaufnahme 1 1, this is in particular arranged at the same level as and in front of the upper Spülgutaufnahme 12. As a result, a particularly simple and comfortable loading of Spülgutaufnahme 1 1 is possible. FIG. 6 shows the water-bearing domestic appliance 1 with a further embodiment of the lifting device 13. The embodiment of the lifting device 13 according to FIG. 6 differs from the embodiment of the lifting device 13 according to FIG. 4 only in that the pivoting arms 27, 28 are stronger in the direction of the rear wall 8 of the washing container 2 are inclined. As a result, the Spülgutaufnahme 1 1 be further shifted upwards, whereby the Spülgutaufnahme 1 1 is easier and faster to load.

Although the present invention has been described with reference to embodiments, it is variously modifiable. LIST OF REFERENCE NUMBERS

1 home appliance

2 rinse tanks

3 door

4 rinsing chamber

5 housing

6 floor

7 blanket

8 rear wall

9 side wall

10 sidewall

1 1 ware intake

12 Spülgutaufnahme

13 lifting device

14 drive device

15 control device

16 servomotor

17 control line

18 side wall

19 rack

20 pinions

21 output shaft

22 swivel arm

23 fastener

24 sensor device

25 torque sensor

26 arrow

27 swivel arm

28 swivel arm

29 rail device

30 handle

31 rail device

32 center point 33 attachment point

34 end section

35 end section

36 end section

37 end section 38 Spülqut

Claims

claims

Lifting device (13) for a Spülgutaufnahme (1 1) of a water-bearing

Domestic appliance (1), wherein the Spülgutaufnahme (1 1) optionally in a

Rinsing container (2) of the water-conducting household appliance (1) in or out of this is displaced, wherein the lifting device (13) is adapted to lift the Spülgutaufnahme (1 1) when herausverlagern from the washing compartment (2) and when inserting into the washing ( 2) lower, the

Lifting device (13) has a drive device (14) and a control device (15), wherein the control device (15) is adapted to the

Drive device (14) at a manual displacement of Spülgutaufnahme (1 1) to control such that the drive means (14) supports the manual displacement of the Spülgutaufnahme (1 1) with an assisting force.

Lifting device (13) according to claim 1, characterized in that the

Control device (15) is adapted to drive the drive device (14) during the manual displacement of the Spülgutaufnahme (1 1) in response to a manual actuating force.

Lifting device (13) according to claim 2, characterized by a

Sensor device (24) for detecting the manual actuating force.

Lifting device (13) according to claim 3, characterized in that the

Sensor device (24) has a torque sensor (25).

Lifting device (13) according to claim 4, characterized in that the torque sensor (25) is arranged on or on an output shaft (21) of the drive device (14).

Lifting device (13) according to one of claims 2 to 5, characterized in that the control device (15) is adapted to drive the drive device (14) such that the Spülgutaufnahme (1 1) in a loss of manual operating force in its current position remains.

7. Lifting device (13) according to claim 6, characterized in that

Drive device (14) can be locked in the current position.

8. Lifting device (13) according to one of the preceding claims, characterized

characterized in that the drive device (14) has a servomotor (16).

9. Lifting device (13) according to claim 8, characterized in that the

Servomotor (16) in or on a side wall (18) of the water-carrying

Household appliance (1) is arranged.

10. Lifting device (13) according to one of the preceding claims, characterized

in that the lifting device (13) has a swivel arm (27, 28) for displacing the washware receptacle (11) and in that the swivel arm (27, 28) on the washing container (2) of the water-conducting household appliance (1) and on the

Spülgutaufnahme (1 1) is pivotally mounted.

1 1. Lifting device (13) according to claim 10, characterized by two spaced-apart pivot arms (27, 28).

12. Lifting device (13) according to claim 10 or 1 1, characterized by a

Rail device (29), along which the pivot arm (27, 28) is guided.

13. Lifting device (13) according to one of claims 1 to 9, characterized in that the lifting device (13) with the Spülgutaufnahme (1 1) operatively connected rack (19) and with the rack (19) in engagement pinion ( 20) and that the pinion (20) with the drive means (14) is operatively connected.

14. Lifting device (13) according to claim 13, characterized in that the

Rack (19) is arcuately curved.

15. Water-conducting household appliance (1) with a lifting device (13) according to one of claims 1 to 14.