EP3793407B1 - Sliding-pivoting mechanism of a shelf of a piece of furniture or of a household appliance, and piece of furniture or household appliance - Google Patents

Description

The present invention relates to a piece of furniture or a household appliance with a shelf fixed by means of a sliding/pivoting mechanism according to the preamble of claims 1 and 2.

Sliding and pivoting mechanisms of this type are used, for example, in dishwashers for raising and lowering a lower shelf, in particular a crockery basket, in order to enable loading and unloading of the shelf in an upright position of a user, which relieves the back muscles and spine.

A generic sliding-pivoting mechanism is, for example, from DE 10 2014 114 285 A1 known. The sliding and pivoting mechanism described there essentially has a pull-out guide and a pivoting mechanism with two pivoting levers, which supports the raising and lowering of the shelf with the aid of a tension spring.

The sliding and pivoting mechanism is actuated by the user using a lever unit that supports the raising and lowering of the pivoting mechanism. With this lever unit, it is already possible to raise and lower the shelf more easily and with less effort.

From the DE 10 2014 213 986 A1 discloses a household appliance with a shelf fixed by means of a sliding and pivoting mechanism, in which, to prevent a linear movement of a crockery basket during the raising and lowering of the crockery basket, a pin-shaped element is attached to the crockery basket, which when the crockery basket is pushed forward into the lifting position into a corresponding C-shaped Counterpart is inserted at the end of a guide lever, wherein the guide lever is pivotally attached at its other end to the side wall of a washing compartment.

The object of the present invention is to further develop the sliding/pivoting mechanism in such a way that the actuating forces to be applied are further reduced.

The task is solved by a piece of furniture or household appliance with the features of claim 1 or 2.

The sliding and pivoting mechanism according to the invention has at least two pivoting arms of a pivoting mechanism which are arranged on at least one of the side walls of the body with a first end parallel to the plane of the side walls and are rotatably fixed and spaced parallel to one another.

At respective second ends of the pivot arms, a guide rail of a sliding mechanism is pivotably fixed parallel to the plane of the side walls such that the guide rail can be pivoted from a lower position inside the body to a raised, upper position at least partially outside the body.

A running rail is linearly displaceable relative to the guide rail. The shelf is attached to the running rail.

The sliding pivoting mechanism also has a lever unit that supports raising and lowering of the pivoting mechanism and is pivotably fixed to the running rail parallel to the plane of the side walls.

At least one coupling element of a first coupling unit is arranged on the lever unit in such a way that the coupling element can be coupled to at least one of the pivot arms by moving the running rail into a predetermined pivoting position with a correspondence element of the first coupling unit corresponding to the coupling element.

According to a first embodiment of the invention, the coupling element of the first coupling unit is designed as a sliding or rolling element, preferably as a sliding bolt or as a roller, which is used to control the sequence of the pivoting movement of the lever unit in a correspondence element that is arranged, in particular formed, on at least one of the pivoting arms and is designed as a link guide is manageable.

According to a second embodiment of the invention, the coupling element of the first coupling unit is designed as a slotted guide, in which a correspondence element arranged on at least one of the pivot arms and designed as a roller can be guided to control the sequence of the pivoting movement of the lever unit.

With a lever unit integrated into the sliding/pivoting mechanism in this way, it is possible to easily couple the lever unit to at least one pivoting lever by simply advancing the running rail and the corresponding lever unit into the pivoting or lifting position.

This solution also further reduces the actuating forces required to lift the tray, since the first coupling unit allows the ratio of the lifting path to the actuating path to be adjusted individually for the application.

The design of the components of the coupling unit as a sliding or rolling element and link guide enable a simple coupling of the respective components without having to use a complex coupling.

The coupling and also the decoupling can be carried out without an additional actuating element or a special unlocking movement and thus enable a smooth sequence of the coupling or decoupling.

Advantageous design variants are the subject of the dependent claims.

According to an advantageous embodiment variant, at least one coupling element of a second coupling unit is arranged on the running rail or the shelf in such a way that the coupling element can be coupled to at least one of the pivoting arms by moving the running rail into a predetermined pivoting position with a correspondence element of the second coupling unit that corresponds to the coupling element.

This enables an even more precise sequence control of the lifting and lowering process.

According to a further embodiment variant, the coupling element of the second coupling unit is designed as a sliding or rolling element, preferably as a sliding bolt or as a roller, which can be guided in a correspondence element arranged, in particular formed on, the at least one of the pivoting arms and designed as a link guide for sequence control of the pivoting movement of the pivoting mechanism . Alternatively, the link guide can also be formed in a separate element that is arranged on one of the swivel arms.

According to a special variant, the slotted guides of the first coupling unit and the second coupling unit are arranged, in particular formed, on at least one of the swivel arms.

This makes it possible to design one of the pivoting arms relatively simply and only to design the other of the pivoting arms with slotted guides.

According to an alternative embodiment variant, the slotted guide of the first coupling unit is arranged, in particular molded, on a first of the pivoting arms and the slotted guide of the second coupling unit on a second of the pivoting arms.

According to a preferred embodiment variant, the lever unit itself has at least one lever arm fixed with a first end on the running rail so that it can pivot parallel to the plane of the side walls and to which the coupling element or the corresponding element of the first coupling unit is fastened.

At least one of the swivel arms, the pull-out guide, the first coupling unit and/or the lever unit are designed in such a way that a controlled sequence of the lever unit is ensured. In particular, this prevents the tray from being raised too early and the lever unit from moving too far beyond the end positions of the tray.

Advantageously, at least one of the swivel arms, the pull-out guide, the first coupling unit and/or the lever unit has corresponding stop or guide areas.

In particular, there are corresponding guide areas on the lever unit and on at least one of the swivel arms, which prevent the shelf from swiveling up too early. Alternatively, instead of a guide area, a correspondence element can also interact with a guide area.

According to a further preferred embodiment variant, a link chain is attached pivotably to one end of the lever arm near a lever arm mount of the lever arm, at the end of which the lever arm is remote from the as Roller trained correspondence element of the first coupling unit is rotatably mounted.

With the help of such a connecting link between the actuating lever and the slotted guide, it is possible to decouple the position and course of the actuating lever and the slotted guide from one another. As a result, when designing the shape of the link, the course and position of the actuating lever can first be determined and then a suitable position of the link can be determined. After determining the positions of link and actuating lever, the articulated chain still leaves sufficient degrees of freedom in the kinematics of the sliding/pivoting mechanism for coupling the actuating lever to the link guide via the articulated chain working according to the toggle lever or rocker arm principle.

In particular, by integrating the articulated chain between the lever arm and the correspondence element of the coupling unit, the movement of the actuating lever can be designed in such a way that the handle attached to one end of the lever arm is positioned when the lower shelf is in the raised state such that a cutlery shelf arranged above the upper shelf is at can still be pulled out when the lower shelf is raised.

For this purpose, the articulated chain preferably has at least two chain links coupled to one another in a pivoting manner.

According to a development of this embodiment variant, the coupling element of the second coupling unit is designed as a sliding or rolling element arranged rotatably on at least one of the pivot arms, which can be guided in a correspondence element arranged, in particular molded on, on the lever arm holder of the lever arm and designed as a link guide for sequence control of the pivoting movement of the pivot mechanism is.

According to a preferred embodiment variant, at least a partial section of the connecting link guide of the first and second coupling unit is designed with an entry area.

This enables the roller to be easily coupled into the link guide.

According to a further preferred embodiment variant, at least a partial section of the connecting link guide of the second coupling unit is part-circular designed, which ensures precise sequence control when raising and lowering the shelf.

According to a further preferred embodiment variant, a section of the connecting link guide of the first coupling unit is designed as a dead center section.

As a result, by pivoting the lever unit beyond the dead center, the shelf can be secured in a raised, upper end position in a simple manner, in particular without the need for locking the sliding/pivoting mechanism in this position. This means that a secured upper end position of the shelf is reached without an additional locking element and can be left again without an additional release element.

According to a further preferred embodiment variant, a section of the connecting link guide of the first coupling unit has a pitch that is matched to an optimal course of the actuating force. In particular, this enables the shelf to be lifted with the user exerting almost the same amount of force.

Fig. 1

eine perspektivische Ansicht einer ersten Ausführungsvariante einer in einem als Geschirrspülmaschine ausgebildeten Haushaltsgerät eingebauten Schiebe-Schwenkmechanik in der in den Nutzraum eingefahrenen Stellung der unteren Ablage,

Fig. 2

eine Seitenansicht der Schiebe-Schwenkmechanik mit daran festgelegter Ablage in der in Fig. 1 gezeigten Position,

Fig. 3

eine Seitenansicht auf die in Fig. 1 linke Schiebe-Schwenkmechanik bei weggelassener Ablage in der in Fig. 1 gezeigten Position,

Fig. 4 bis 6

den Fig. 1 bis 3 entsprechende Darstellungen des Haushaltsgeräts und der Schiebe-Schwenkmechanik nach erfolgtem Verschieben der unteren Ablage aus dem Korpus heraus vor dem Anheben der Schiebe-Schwenkmechanik,

Fig. 7 u. 8

den Fig. 5 und 6 entsprechende Darstellungen der Schiebe-Schwenkmechanik gemäß einer geringfügig veränderten Ausführungsvariante,

Fig. 9 u. 10

den Fig. 4 und 6 entsprechende Darstellungen in der leicht angehobenen Position der unteren Ablage,

Fig. 11 u. 12

den Fig. 9 und 10 entsprechende Darstellungen in der vollständig angehobenen Position der unteren Ablage,

Fig. 13

eine perspektivische Explosionsdarstellung der Schiebe-Schwenkmechanik gemäß der in Fig. 12 gezeigten Ausführungsvariante,

Fig. 14 bis 16

den Fig. 1 bis 3 entsprechende Ansichten einer alternativen Ausführungsvariante, bei der zwei Kulissenführungen an einem der Schwenkarme angeordnet sind,

Fig. 17 u. 18

den Fig. 14 und 16 entsprechende Darstellungen nach erfolgter Verschiebung der unteren Ablage aus dem Korpus heraus vor dem Anheben der Schiebe-Schwenkmechanik,

Fig. 19 u. 20

den Fig. 17 und 18 entsprechende Darstellungen in der leicht angehobenen Position der unteren Ablage,

Fig. 21 u. 22

den Fig. 19 und 20 entsprechende Darstellungen der Schiebe-Schwenkmechanik in der vollständig angehobenen Position der unteren Ablage,

Fig. 23

eine perspektivische Explosionsdarstellung der in den Fig. 14 bis 22 gezeigten Schiebe-Schwenkmechanik,

Fig. 24 bis 26

den Fig. 1 bis 3 entsprechende Ansichten einer weiteren Ausführungsvariante einer erfindungsgemäßen Schiebe-Schwenkmechanik bei vollständig eingefahrener unterer Ablage,

Fig. 27 und 28

den Fig. 24 und 26 entsprechende Darstellungen nach erfolgter Verschiebung der unteren Ablage aus dem Korpus heraus vor dem Anheben der Schiebe-Schwenkmechanik,

Fig. 29 und 30

eine den Fig. 27 und 28 entsprechende perspektivische Darstellung in der leicht angehobenen Position der unteren Ablage,

Fig. 31 und 32

den Fig. 29 und 30 entsprechende Ansichten des Haushaltsgerätes bzw. der Schiebe-Schwenkmechanik in der vollständig angehobenen Position der unteren Ablage,

Fig. 33

eine perspektivische Explosionsdarstellung der Schiebe-Schwenkmechanik gemäß Fig. 24 bis 32.

Fig. 34 bis 36

den Fig. 1 bis 3 entsprechende Ansichten einer weiteren Ausführungsvariante einer erfindungsgemäßen Schiebe-Schwenkmechanik bei vollständig eingefahrener unterer Ablage,

Fig. 37 und 38

den Fig. 34 und 36 entsprechende Darstellungen nach erfolgter Verschiebung der unteren Ablage aus dem Korpus heraus vor dem Anheben der Schiebe-Schwenkmechanik,

Fig. 39 und 40

eine den Fig. 37 und 38 entsprechende perspektivische Darstellung in der leicht angehobenen Position der unteren Ablage,

Fig. 41 und 42

den Fig. 39 und 40 entsprechende Ansichten des Haushaltsgerätes bzw. der Schiebe-Schwenkmechanik in der vollständig angehobenen Position der unteren Ablage,

Fig. 43 und 44

den Fig. 39 und 40 entsprechende Ansichten des Haushaltsgerätes bzw. der Schiebe-Schwenkmechanik in der vollständig angehobenen Position der unteren Ablage mit zusätzlicher dritter Ablage,

Fig. 45

eine perspektivische Explosionsdarstellung der Schiebe-Schwenkmechanik gemäß Fig. 34 bis 44.

Embodiment variants of the invention are explained in more detail below with reference to the accompanying drawings. Show it:

1

a perspective view of a first variant of a built-in in a domestic appliance designed as a dishwasher sliding and pivoting mechanism in the position of the lower shelf retracted into the usable space,

2

a side view of the sliding and swiveling mechanism with a shelf fixed to it in FIG 1 shown position,

3

a side view of the in 1 left sliding swivel mechanism with omitted shelf in the in 1 shown position,

Figures 4 to 6

the Figures 1 to 3 corresponding representations of the household appliance and the slide-pivot mechanism after the shift has taken place the lower shelf out of the body before lifting the sliding and swivel mechanism,

Figures 7 and 8

the Figures 5 and 6 Corresponding representations of the slide and swivel mechanism according to a slightly modified design variant,

Fig. 9 & 10

the 4 and 6 corresponding representations in the slightly raised position of the lower shelf,

11 and 12

the 9 and 10 corresponding representations in the fully raised position of the lower shelf,

13

a perspective exploded view of the sliding swivel mechanism according to in 12 shown variant,

Figures 14 to 16

the Figures 1 to 3 corresponding views of an alternative embodiment, in which two link guides are arranged on one of the swivel arms,

17 and 18

the 14 and 16 corresponding representations after the lower shelf has been moved out of the body before the sliding and swivel mechanism is lifted,

Fig. 19 & 20

the 17 and 18 corresponding representations in the slightly raised position of the lower shelf,

21 and 22

the 19 and 20 Corresponding representations of the slide-pivot mechanism in the fully raised position of the lower shelf,

23

an exploded perspective view in the Figures 14 to 22 sliding swivel mechanism shown,

Figures 24 to 26

the Figures 1 to 3 corresponding views of a further embodiment of a sliding swivel mechanism according to the invention with the lower shelf fully retracted,

27 and 28

the 24 and 26 corresponding representations after the lower shelf has been moved out of the body before the sliding and swivel mechanism is lifted,

29 and 30

a den 27 and 28 corresponding perspective view in the slightly raised position of the lower shelf,

31 and 32

the 29 and 30 Corresponding views of the household appliance or the sliding and swivel mechanism in the fully raised position of the lower shelf,

Figure 33

according to an exploded perspective view of the sliding pivot mechanism Figures 24 to 32 .

34 to 36

the Figures 1 to 3 corresponding views of a further embodiment of a sliding swivel mechanism according to the invention with the lower shelf fully retracted,

37 and 38

the 34 and 36 corresponding representations after the lower shelf has been moved out of the body before the sliding and swivel mechanism is lifted,

39 and 40

a den 37 and 38 corresponding perspective view in the slightly raised position of the lower shelf,

41 and 42

the 39 and 40 Corresponding views of the household appliance or the sliding and swivel mechanism in the fully raised position of the lower shelf,

43 and 44

the 39 and 40 Corresponding views of the household appliance or the sliding and swivel mechanism in the fully raised position of the lower shelf with an additional third shelf,

Figure 45

according to an exploded perspective view of the sliding pivot mechanism 34 to 44 .

In the following description of the figures, terms such as top, bottom, left, right, front, rear, etc. refer exclusively to the exemplary depiction and position of the slide and swivel mechanism, shelf, swivel arms, lever unit, pull-out guide and the like selected in the respective figures. These terms are not to be understood as limiting, i.e. these references can change due to different working positions or the mirror-symmetrical design or the like.

In the Figures 1 to 13 shows a first embodiment of a sliding swivel mechanism according to the invention, with which a lower shelf 9, here in the form of a crockery basket, can be moved from the interior or utility space 22 of a household appliance, here designed as a dishwasher 1, from an inserted lower position to a position pulled out of the utility space and upwardly pivoted loading and unloading can be raised.

The Figures 14 to 23 show an alternative second embodiment variant of such a sliding pivoting mechanism, in which a first pivoting lever 41 and a second pivoting lever 42 are not in a lowered initial position, as in the variant according to FIG Figures 1 to 13 aligned vertically, but inclined forward at an angle of about 20°.

This angular orientation of the pivoted levers 41, 42 offers the advantage over the first embodiment variant that it enables a greater pull-out distance in the lower position without the shelf 9 protruding too far forward in the upper end position. This improves access to the shelf 9 in the lower, extended position, without the distance between the shelf 9 and the body 2 in the fully raised position differing from the position in the first embodiment variant. In addition, the angled orientation offers the advantage that higher objects can be placed in the shelf without colliding with the lever unit 5 due to the changed pivoting path.

A middle rail between the guide rail 31 and the running rail 32 is conceivable, but not necessary. An additional middle rail can increase the stability and the pull-out distance of the drawer runner.

The Figures 24 to 33 show a third embodiment of a slide-pivoting mechanism according to the invention.

The Figures 34 to 45 show a fourth embodiment of a slide-pivoting mechanism according to the invention.

Common to all variants is the basic structure of the pull-out guide 3 with a guide rail 31 and a running rail 32 that can be displaced linearly in this, to which the lower shelf 9 is fastened.

As for example in the 1 , 14 , 24 and 34 is shown, in the usable space 22 of the domestic appliance designed here as a dishwasher 1, in addition to the lower shelf 9, an upper shelf 10 is arranged above it, which can be pulled out of the usable space 22 of the body 2 of the dishwasher 1 via a further pull-out guide (not shown here). .

The same arrangement is also conceivable for a shelf 9 or two shelves 9, 10 arranged in a piece of furniture or another household appliance, for example a cooking appliance such as an oven or the like or a refrigerator.

As in the 1 , 14 , 24 and 34 is further shown, a sliding and pivoting mechanism is preferably arranged on each of the side walls 21 of the piece of furniture or household appliance in order to be able to adequately support a shelf 9 such as the crockery basket shown here.

In principle, however, it would also be conceivable to arrange only one sliding/pivoting mechanism in the usable space of the piece of furniture or household appliance, for example for fixing a board-like shelf or the like with a comparatively lower carrying capacity.

Also common to all variants is the basic structure of the pivoting mechanism 4. The pivoting mechanism 4 has, as shown in FIGS 2 , 15 , 25 and 35 shown, two on a side wall 21 with a first end parallel to the plane of the side walls 21 rotatably fixed and parallel spaced apart pivot arms 41, 42 on. The swivel arms 41, 42 are rotatably fixed to a side wall mount 43 via respective rotary joints 412, 422 on the side wall mount 43.

At the respective second ends of the swivel arms 41, 42, the guide rail 31 of a respective pull-out guide 3 is fixed via swivel joints 411, 421.

The second swivel arm 42 is preferably connected to the side wall mount 43 via a force accumulator 6, for example in the form of a helical spring or gas pressure spring, in such a way that the raising and/or lowering of the swivel mechanism 4 is supported by the force accumulator 6 by pivoting the second pivot arm 42. Additionally or alternatively, the energy accumulator 6 can also have a damper.

Furthermore, all design variants of the sliding/pivoting mechanism have a lever unit 5 that supports raising and lowering of the pivoting mechanism 4 and is pivotably fixed to the running rail 32 parallel to the plane of the side walls 21 .

At least one coupling element of a first coupling unit 7 is arranged on lever unit 5 in such a way that the coupling element can be coupled to at least one of the pivot arms 41, 42 by moving the running rail 32 into a predetermined pivoting position with a correspondence element of the first coupling unit 7 that corresponds to the coupling element.

All of the embodiment variants also have a second coupling unit 8, with at least one coupling element of this second coupling unit 8 being arranged on the running rail 32 or the shelf 9 in such a way that the coupling element can be connected to a correspondence element corresponding to the coupling element by moving the running rail 32 into a predetermined pivoting position at least one of the swivel arms 41, 42 can be coupled to the second coupling unit 8.

In the embodiment variants shown here, each of the coupling units 7, 8 preferably has a roller 71, 81 and a link guide 72, 82, in which the respective roller 71, 81 can be guided.

The main task of the slotted guide 82 is to prevent uncontrolled rail movement during pivoting.

The slotted guide 72 can advantageously be designed in such a way that it has at least one sliding surface, in particular a raised surface, for guiding the lever arm 51 during the extension movement, so that the lever arm 51 is prevented from rubbing on the slotted guide 72 or on the pivot arms 41, 42 becomes.

Alternatively, the at least one sliding surface 423 can also be arranged on one of the swivel arms 41, 42, as is exemplified in FIGS figures 26 and 33 is shown.

In the first three variants, as in the 2 , 15 and 25 it can be seen that the roller 81 of the second coupling unit 8 is fastened to the running rail 32 . The roller 81 is preferably attached to a roller bracket 35 that protrudes upwards in the direction of the side wall bracket 43 in a rear region of the roller rail 32 in the extension direction x.

Common to all variants is a lever arm mount 34 which is arranged on the running rail 32 and on which the lever arm 51 is rotatably fixed.

In the front area, the lever arm holder has a stop 341 against which the lever arm 51 strikes in its lower position and which prevents the lever arm 51 from being lowered too far. For this purpose, a corresponding projection or a corresponding bend is preferably present on the lever arm 51 .

In all variants, too, the design of link 72 with an upper dead center area ensures that lever arm 51 cannot be pivoted any further in the direction of the body in the raised end position. This prevents the lever unit 5 from colliding with the body.

Below are details of the first embodiment based on the Figures 1 to 13 described.

At the in the Figures 1 to 13 shown first embodiment is, as in the Figures 2 and 3 As can be seen, the coupling element of the first coupling unit 7 is designed as a roller 71 which is fastened in a rear region of a lever arm 51 of the lever unit 5 in the extension direction x.

A front end of the lever unit 5 is formed as an operating handle 52 . The actuating handle 52 preferably connects the lever arms 51 of the respective sliding/pivoting mechanism, which are arranged on both sides of the shelf 9 .

In this exemplary embodiment, the lever arm 51 has an angled edge 55 in the upper region to increase stability. The upper edge 55 of the The lever arm 51 together with a stop 413 arranged on the first pivot arm 41 forms a guide region, as a result of which the shelf 9 is prevented from pivoting upwards during the extension movement.

Correspondingly, the link guide 72 of the first coupling unit 7 is formed here on the first swivel arm 41 of the swivel mechanism 4 in a section of the first swivel arm 41 that is designed to be correspondingly wide.

It is also conceivable to design the link guide 72 as a separate component and to attach it to the swivel arm 41 .

In order to enable the roller 71 to slide past the second swivel arm 42 when the lower shelf 9 is pulled out of the usable space 22 of the body 2, the second swivel arm 42 has a bead 424 in an area of the swivel arm 42 that corresponds to the mounting height of the roller 71. so that the lever arm 51 can pass through the second pivot arm 42 without hitting it.

The predetermined pivoting position, in which the coupling element and the correspondence element of the first coupling unit 7 come into operative connection with one another, is just before reaching the Figures 4 to 6 shown position, in which the shelf 9 is moved out of the usable space 22 of the body 2 into a position in which the shelf 9 can be raised using the pivoting mechanism 4.

As in particular in the figure 6 shown, in this position the roller 71 of the first coupling unit 7 is retracted into the link guide 72 of the first coupling unit 7 . At the same time, the roller 81 of the second coupling unit 8 is moved into the slotted guide 82 of the slotted guide 82 of the second coupling unit 8 , which is formed here on the second lever arm 42 .

In order to enable the rollers 71, 81 to be easily threaded into the slotted guides 72, 82, the slotted guides 72, 82 preferably each have an inlet area 73, 83 which can be rounded off at the end or designed in the shape of a funnel. Shortly before the fully extended position of the shelf 9 is reached, the inlet area 73 takes over the protection of the lever arm 51 against pivoting up too early.

The inlet areas 73, 83 can be of different lengths depending on the requirements. So shows in particular 3 a second coupling unit 8 with a relatively short lead-in area 83, while in an alternative sub-variant, shown in 8 , the inlet area 83 is dimensioned somewhat longer, whereby the shelf 9 as a whole can be extended somewhat further out of the usable space 22 of the body 2 in the extension direction x.

Due to the special design of the slotted guide 82 with a relatively long entry area 83, the tray 9 is moved counter to the pull-out direction x while it is being pivoted up.

In this way, good access to the lower shelf 9 is made possible in the lower, extended position of the sliding/pivoting mechanism, without the shelf 9 protruding over a door 23 of the dishwasher 1 while it is being pivoted up.

While the slotted guide 82 of the second coupling unit 8 has a partial circular section adjoining the inlet area 83 (in all of the four embodiment variants), the slotted guide 72 of the first coupling unit 7 in the first embodiment variant is shaped in such a way that the horizontally running inlet area 73 has an im Substantially vertically downwardly extending sub-section, at the end of which in turn extends a dead center section angled at right angles to this.

The connecting link 82 can also be designed as a straight line or as a free-form curve, as a result of which the running path of the running rail 32 can be controlled as required during pivoting up. When designed as a circular track, the running rail is only fixed to one of the two pivoting levers 41, 42.

This dead center section serves to store 9 in their in the 11 and 12 shown upper raised end position without force, so that the tray 9 remains in this position without further actuation by a user.

The shape of the slotted guide 72 is primarily geared towards a gradient that is matched to an optimal course of the actuation force. The actuating force can be optimized during the pivoting process by a targeted change in the shape of the link guide 72 to the application and the available pivoting range.

The figures 9 and 10 show the dishwasher and the swivel mechanism 4 in the slightly raised position, in which the roller 71 of the first coupling unit 7 has already entered the next section from the inlet area 73, while the roller 81 of the second coupling unit 8 is positioned at the transition to the part-circular section.

Below are details of the second embodiment based on the Figures 14 to 23 described.

In contrast to the one in the Figures 1 to 13 variant shown is in the Figures 14 to 23 variant shown, the link guide 82 of the second coupling unit 8 is formed on the same swivel arm 41 as the link guide 72 of the first coupling unit 7.

In this variant too, the edge 55 of the lever arm 51 and the stop 413 on the first swivel arm 41 form a safeguard against the lever arm 51 being raised too early during the extension of the tray 9 .

In addition, the pivot arms 41, 42 in the lowered position of the tray 9, as shown in FIGS Figures 14 to 16 shown, not aligned vertically, but at an angle of 1° to 60°, preferably 10° to 30°, in the direction of extension, which enables the shelf 9 to be moved further out of the usable space 22 of the body 2 of the dishwasher as with a vertical arrangement of the swivel arms 41, 42.

Also here is in the figures 17 and 18 the fully extended, albeit not raised, position of the tray 9 and the sliding/pivoting mechanism is shown, in which the roller 71 of the first coupling unit 7 is retracted into the entry area 73 of the link guide 72 and, correspondingly, the roller 81 of the second coupling unit 8 is also inserted into the entry area 83 of the second link guide 82 is retracted. In this embodiment variant, the link guide 72 is designed as a curve with a changing curve radius.

The 19 and 20 show the second embodiment variant of this sliding and pivoting mechanism in the slightly raised position of the shelf 9, in which the rollers 71, 81 are retracted into the curved area of the slotted guide 72 of the first coupling unit 7 and the part-circular area of the slotted guide 82 of the second coupling unit 8.

figures 21 and 22 show the raised end position of the sliding and pivoting mechanism, in which the rollers 71, 81 have arrived at the rear end of the respective link guide 72, 82.

In this embodiment variant, too, the link guide 72 is shaped in such a way that, in the raised end position, the shelf 9 remains in a safe position without additional locking and is only lowered again by actuating the lever unit 5 .

By designing the link guide 72 as a curve with a changing curve radius, it is possible to achieve a smooth transition into the dead center area, which is advantageous compared to the first embodiment variant.

The path between the dead center and the safe end position can be adjusted in a simple manner by the individual design of the connecting link 72 near the dead center area.

The 23 shows the sliding and swivel mechanism again in a perspective exploded view.

Below are details of the third embodiment based on the Figures 24 to 33 described.

At the in the Figures 24 to 33 In the third embodiment variant of the sliding/pivoting mechanism shown, the link guide 72 of the first coupling unit 7 is not formed on one of the pivoting arms 41, 42, but on the rear end of the lever arm 51. In this embodiment variant, link guide 72 represents the coupling element.

Accordingly, the rear end of this lever arm 51 has a larger surface area.

The roller 71 embodied here as a correspondence element is fastened to the first swivel arm 41 in this case.

This results in a coupling of the coupling element, which is arranged here on the lever arm 51 and is designed as a link guide 72, with the corresponding element, which is designed as a roller 71 and is arranged on the first swivel arm 41. only in the in the 27 and 28 shown extended position of the tray 9 from the usable space 22 of the body 2.

Here, too, the link guide 72 of the first coupling unit 7 is designed with an inlet area 73 and a curve adjoining this.

After the lower shelf has reached the extended position before it is raised, the rollers 71, 81 of the coupling units 7, 8 have also run into the inlet area 73, 83 and are shown in FIGS 29 and 30 into the respective curved areas of the slotted guides 72, 82 until the lever arm 51 is almost vertical in the raised end position and the rollers 71, 81 have reached the rear end of the slotted guides 72, 82.

In this embodiment variant, too, the link guide 72 is shaped in such a way that, in the raised end position, the shelf 9 remains in a safe position without additional locking and is only lowered again by actuating the lever unit 5 .

Also here is in Figure 33 again shown a perspective exploded view of the sliding swivel mechanisms of this embodiment.

In this third embodiment variant, the roller 71 also has the additional function of preventing the lever arm 51 from swiveling up too early while the shelf 9 is being pulled out, in that the edge 55 of the lever arm 51 runs under the roller 71 as a guide surface.

The Figures 34 to 45 show a fourth embodiment of a slide-pivoting mechanism according to the invention.

In contrast to the previous variants of the sliding-pivoting mechanism according to the invention is in the Figures 34-45 In the embodiment variant shown, the roller of the first coupling unit is not attached directly to the end of the lever arm 51 remote from the handle part 52, but rather to an end of an articulated chain pivotably connected to the lever arm 51 and remote from the end of the lever arm 51.

In the embodiment variant shown here, the articulated chain consists of two chain links 53, 54, each of which is preferably designed as an angled web with suitably shaped kinks are formed. It is also conceivable to link more than two such chain links together to form a link chain.

At the spaced from the first chain link 53 free end of the second chain link 54 is here, as for example in the Figures 35, 36 or 45 is shown, the roller 71 of the first coupling unit 7 is rotatably mounted.

As in the Figure 36 , 38 , 40 , 42 and 45 is shown, also in this exemplary embodiment, the link guide 72 of the first coupling unit 7 is integrally formed or fastened to the first swivel arm 41 of the swivel mechanism 4 in a section of the first swivel arm 41 that is designed to be correspondingly wide.

Here, too, the roller 71 of the first coupling unit 7 is threaded into the link guide 72 when the shelf 9 is moved out of the in 34 retracted position shown in 37 extended but not yet raised position shown.

At the same time, the roller 81 of the second coupling unit 8 is also guided into the entry area 83 of the link guide 82 of the second coupling unit 8 during this movement.

In this embodiment variant, the coupling element of the second coupling unit 8 is designed as a sliding or rolling element 81 rotatably arranged on the first swivel arm 41 .

This sliding or rolling element 81 can be guided in a corresponding element arranged on the lever arm holder 34 of the lever arm 51 , in particular formed or fastened thereon and designed as a link guide 82 , for sequence control of the pivoting movement of the pivoting mechanism 4 .

The articulated chain with the chain links 53, 54 shown here coupled to one another acts according to the toggle lever or rocker arm principle.

In the in the Figures 41 to 44 In the position shown, in which the lower tray 6 has moved into its raised end position, the arrangement of the roller 71 of the first coupling unit 7 at the end of the articulated chain, here at the free end of the second chain link 54, allows the handle part 52 to reach this point in the fully raised position can be moved to the top of the raised lower shelf that an optional in the dishwasher 1 or another household appliance or piece of furniture, the third shelf 11 arranged in the uppermost area of the usable space 22, which is designed, for example, as a cutlery basket, can still be moved out of the usable space 22 when the lower shelf 6 is raised, ie above the handle part 52 in the horizontal direction.

Reference List

1

dishwasher

2

body

21

Side wall

22

usable space

23

door

3

drawer guide

31

guide rail

32

running rail

34

lever arm mount

341

attack

35

caster mount

4

swivel mechanism

41

first swing lever

411

swivel joint

412

swivel joint

413

attack

42

second swivel lever

421

swivel joint

422

swivel joint

423

sliding surface

424

bead

43

side panel mount

5

lever unit

51

lever arm

52

handle part

53

first chain link

54

second chain link

55

edge

6

energy accumulator

7

first coupling unit

71

roller

72

link guide

73

inlet area

8th

second coupling unit

81

roller

82

link guide

83

inlet area

9

filing

10

filing

11

filing

x

pull direction

Claims (16)

1. A piece of furniture having a furniture body (2) and at least one shelf (9) fixed in the furniture body (2) by means of a sliding-pivoting mechanism, using which the shelf (9) can be pulled out of the furniture body (2) and raised, or household appliance, in particular a dishwasher (1) or cooking appliance or refrigerator, having at least one shelf (9) fixed on an inner side of a usable space (23), in particular a washing space or cooking space or cooling space, by means of a sliding-pivoting mechanism, using which the shelf (9) can be pulled out of the usable space and raised, wherein the sliding-pivoting mechanism having

   - at least two pivot arms (41, 42) of a pivot mechanism (4) rotatably fixed on at least one of the side walls (21) of the body (2) with a first end parallel to the plane of the side walls (21) and arranged in parallel spaced apart from one another,

   - wherein a guide rail (31) of a sliding mechanism (3) is pivotably fixed in parallel to the plane of the side walls (21) at respective second ends of the pivot arms (41, 42) in such a way that the guide rail (31) is pivotable out of a lower position inside the body (2) into a raised upper position at least partially outside the body (2),

   - at least one slide rail (32), which is linearly displaceable in the guide rail (31) and on which the shelf (9) is fastened,

   - a lever unit (5), which assists raising and lowering of the pivot mechanism (4) and is pivotably fixed on the slide rail (32) in parallel to the plane of the side walls (21),

   - wherein at least one coupling element of a first coupling unit (7) is arranged on the lever unit (5) in such a way that the coupling element can be coupled with a correspondence element, corresponding to the coupling element, of the first coupling unit (7) on at least one of the pivot arms (41, 42) by displacing the slide rail (32) into a predetermined pivot position,

   characterized in that

   - the coupling element of the first coupling unit (7) is designed as a sliding or rolling element (71), which can be guided in a correspondence element, which is arranged, in particular formed on the at least one of the pivot arms (41, 42) and is designed as a slotted guide (72), for the sequence control of the pivot movement of the lever unit (5).
2. A piece of furniture having a furniture body (2) and at least one shelf (9) fixed in the furniture body (2) by means of a sliding-pivoting mechanism, using which the shelf (9) can be pulled out of the furniture body (2) and raised, or household appliance, in particular a dishwasher (1) or cooking appliance or refrigerator, having at least one shelf (9) fixed on an inner side of a usable space (23), in particular a washing space or cooking space or cooling space, by means of a sliding-pivoting mechanism, using which the shelf (9) can be pulled out of the usable space and raised, wherein the sliding-pivoting mechanism having

   - at least two pivot arms (41, 42) of a pivot mechanism (4) rotatably fixed on at least one of the side walls (21) of the body (2) with a first end parallel to the plane of the side walls (21) and arranged in parallel spaced apart from one another,

   - wherein a guide rail (31) of a sliding mechanism (3) is pivotably fixed in parallel to the plane of the side walls (21) at respective second ends of the pivot arms (41, 42) in such a way that the guide rail (31) is pivotable out of a lower position inside the body (2) into a raised upper position at least partially outside the body (2),

   - at least one slide rail (32), which is linearly displaceable in the guide rail (31) and on which the shelf (9) is fastened,

   - a lever unit (5), which assists raising and lowering of the pivot mechanism (4) and is pivotably fixed on the slide rail (32) in parallel to the plane of the side walls (21),

   - wherein at least one coupling element of a first coupling unit (7) is arranged on the lever unit (5) in such a way that the coupling element can be coupled with a correspondence element, corresponding to the coupling element, of the first coupling unit (7) on at least one of the pivot arms (41, 42) by displacing the slide rail (32) into a predetermined pivot position,

   characterized in that

   - the coupling element of the first coupling unit (7) is designed as a slotted guide (72), in which a correspondence element, which is arranged on the at least one of the pivot arms (41, 42) and is designed as a roller (71), can be guided for the sequence control of the pivot movement of the lever unit (5).
3. The piece of furniture or household appliance according to Claim 1 or 2, characterized in that at least one coupling element of a second coupling unit (8) is arranged on the slide rail (32) or the shelf (9) in such a way that the coupling element can be coupled with a correspondence element, corresponding to the coupling element, of the second coupling unit (8) of at least one of the pivot arms (41, 42) by displacing the slide rail (32) into a predetermined pivot position.
4. The piece of furniture or household appliance according to claim 3, characterized in that the coupling element of the second coupling unit (8) is designed as a sliding or rolling element (81), which can be guided in a correspondence element, which is arranged, in particular formed, on the at least one of the pivot arms (41, 42) and is designed as a slotted guide (82), for the sequence control of the pivot movement of the pivot mechanism (4).
5. The piece of furniture or household appliance according to Claim 1 and 4, characterized in that the slotted guides (72, 82) of the first coupling unit (7) and the second coupling unit (8) are arranged, in particular formed, on the at least one of the pivot arms (41, 42).
6. The piece of furniture or household appliance according to Claim 1 and 4, characterized in that the slotted guide (72) of the first coupling unit (7) is arranged, in particular formed on a first of the pivot arms (41, 42) and the slotted guide (82) of the second coupling unit (8) is arranged, in particular formed, on a second of the pivot arms (42, 41).
7. The piece of furniture or household appliance according to any one of the preceding claims, characterized in that the lever unit (5) has at least one lever arm (51), which is pivotably fixed with a first end on the slide rail (32) in parallel to the plane of the side walls (21) and on which the coupling element or the correspondence element of the first coupling unit (7) is fastened.
8. The piece of furniture or household appliance according to any one of Claims 1 to 6, characterized in that a joint chain is pivotably fastened on an end of the lever arm (51) close to a lever arm mount (34) of the lever arm (51), on the end of which remote from the lever arm (51) the correspondence element of the first coupling unit (7) designed as a roller (71) is rotatably fastened.
9. The piece of furniture or household appliance according to Claim 8, characterized in that the joint chain has at least two chain links (53, 54) coupled to one another in a rotationally articulated manner.
10. The piece of furniture or household appliance according to any one of Claims 1, 3 and 8 to 9, characterized in that the coupling element of the second coupling unit (8) is designed as a sliding or rolling element (81) rotatably arranged on the at least one of the pivot arms (41, 42), which can be guided in a correspondence element, which is arranged, in particular formed on the lever arm mount (34) of the lever arm (51) and is designed as a slotted guide (82), for the sequence control of the pivot movement of the pivot mechanism (4).
11. The piece of furniture or household appliance according to any one of the preceding claims, characterized in that at least a portion of the slotted guide (72, 82) of the first or second coupling unit (7, 8) is formed having an inlet region (73, 83).
12. The piece of furniture or household appliance according to any one of the preceding claims, characterized in that at least a portion of the slotted guide (72, 82) of the first (7) or second coupling unit (8) is formed in the shape of a partial circle.
13. The piece of furniture or household appliance according to any one of the preceding claims, characterized in that at least a portion of the slotted guide (72, 82) of the first (7) or second coupling unit (8) is formed as a curve having varying curve radius.
14. The piece of furniture or household appliance according to any one of the preceding claims, characterized in that a portion of the slotted guide (72) of the first coupling unit (7) is formed as a dead center section.
15. The piece of furniture or household appliance according to any one of the preceding claims, characterized in that at least a portion of the slotted guide (72) of the first coupling unit (7) has a slope adapted to an optimum actuating force curve.
16. The piece of furniture or household appliance according to any one of the preceding claims, characterized in that a safeguard against raising the lever unit (5) before the shelf (9) is completely extended and/or a safeguard against pivoting the lever unit (5) too far during the raising and/or lowering is provided.

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