EP3200670B1 - Sliding-pivoting mechanism for a shelf of a piece of furniture or of a domestic appliance, piece of furniture, and domestic appliance - Google Patents

Description

The present invention relates to a sliding swivel mechanism for a shelf of a furniture or household appliance for taking off and lifting the tray from a body of the furniture or household appliance according to the preamble of claim 1. The invention further relates to a piece of furniture and a household appliance with such a sliding swing mechanics.

A generic sliding swivel mechanism is from the DE 10 2012 107 993 A1 known. In the disclosed in this document sliding swivel mechanism is supported by means of a tension spring which acts on one of the pivot arms, the raising or lowering of the tray. As a result, the loading or unloading of the tray is made possible in an upright position of the user that relieves the back muscles and the spine.

From the US 2008/0129168 A1 is a sliding swivel mechanism known in which instead of the tension spring a biasing element, here in the form of a combination of damper and gas spring which engages one of the pivot arms, supports the increase or decrease of the shelf.

Such a sliding pivot mechanism has proven itself in practice.

However, especially when loading the tray with relatively heavy objects, in particular with a total mass of more than 10 kilograms, the raising or lowering of the tray is difficult. The use of a tension spring with a higher spring rate or one in the US 2008/0129168 A1 described biasing element is not useful here, since with such a tension spring or biasing element lowering the shelf would be greatly impeded in the discharged state.

Object of the present invention is to provide a sliding pivot mechanism of a shelf of a piece of furniture or household appliance, with the raising or lowering of the shelf is facilitated.

The object is achieved by a sliding swivel mechanism for storage of a piece of furniture or household appliance for removing or lifting the tray from a body of the furniture or household appliance with the features of claim 1. The stated object is further achieved by a piece of furniture having the features of claim 14 and a household appliance having the features of claim 15.

The sliding swivel mechanism according to the invention has at least two on at least one of the side walls of the body with a first in the parallel to the plane of the side walls rotatable fixed and parallel spaced apart arranged pivot arms of a pivot mechanism. At respective second ends of the pivot arms, respective guide rails of a sliding mechanism are pivotally fixed parallel to the plane of the side walls such that the guide rail is pivotable at least partially outside the body from a lowered position within the body to a raised upper position. Furthermore, the sliding pivot mechanism has at least one guide rail that can be displaced linearly in the guide rail, to which the tray can be fastened. The sliding pivot mechanism further includes a lever unit assisting in raising and lowering the pivot mechanism.

With a lifting and lowering the pivot mechanism support lever unit is a simple way and without changing the spring rate of a tension spring a simplified raising and lowering of the tray allows.

Advantageous embodiments of the invention are the subject of the dependent claims.

According to an advantageous embodiment of the invention, the lever unit has two interconnected by at least one crosspiece lever elements. The crosspiece serves as an operating handle. The lever elements can be formed at an angle.

The lever elements are shaped such that a raising and lowering of the tray with less effort compared to a conventional handle attached to the tray or by intervention in the tray itself is possible.

According to a further advantageous embodiment of the invention, the lever elements on a first leg and a second leg, wherein a first transverse web between the free ends of the short leg is arranged. The second leg is preferably designed so that the first transverse web positioned at least in the lowered position or in the raised position or in an intermediate position above the tray is. Particularly advantageously, the first crosspiece is positioned in any position above the tray.

As a result, the access to the crossbar is facilitated by a person insofar as that the crosspiece is positioned vertically higher than the tray itself, especially in the lowered position of the tray.

The lever elements are fixed according to a preferred embodiment, parallel to the plane of the side walls pivotally mounted on the running rail. The first leg has at its free ends preferably rolling or sliding elements with which the lever unit can be supported on a floor.

This can be additionally supported by pulling on the first crosspiece, the pivoting movement of the body upwards over the lever elements after pulling out the tray in its Schwenkstartstellung.

According to an alternative embodiment, the lever elements of the lever unit are aligned parallel to the plane of the side walls mounted on the pivoting mechanism.

The lever elements are preferably U-shaped and coupled for the pivoting movement with one of the pivot arms, so that here by pulling the first crossbar a favorable leverage is exploited to pivot the tray from its lowered position to the raised position.

Advantageously, the lever elements of the lever unit can be made longer than at least one pivot arm of the pivot mechanism in order to achieve a very advantageous lever ratio in the pivoting movement.

The lever elements can be made in one or more parts and rigidly connected to each other.

According to a further alternative embodiment variant, the lever unit has two lever elements which are pivotably fixed to the pivoting mechanism and whose ends spaced from the pivoting mechanism are pivotally connected to respective lifting elements which can be telescoped in the withdrawal direction and which are extendable and retractable with a drive unit.

Such lifting elements, which can be driven by a drive unit, make it possible, in yet another alternative way, to support the lifting and lowering movement of the pivoting mechanism.

According to an advantageous embodiment, rolling elements are also arranged at the spaced from the pivot mechanism ends of the lever elements, with which the lever elements are supported on a floor, so that with relatively low driving force, reinforced by the leverage of the lever elements support the lifting and lowering movement allows is.

The furniture according to the invention and the household appliance according to the invention are characterized by the sliding pivot mechanism described above. In an example designed as a flushing device household appliance is loaded and unloaded a lower tray, which is arranged in the lowered position in the lower region of the body and possibly below an upper tray with such a trained sliding pivot mechanism, as the shelf is not much easier only in a comfortable raised position is movable, but the method of storage in the raised position is made possible even with less effort.

Figur 1

eine perspektivische Ansicht einer ersten Ausführungsva-riante einer in einem Haushaltsgerät eingebauten Schie-be-Schwenkmechanik während eines Anhebe- oder Ab-senkvorgangs einer unteren Ablage,

Figur 2

eine perspektivische Ansicht des Haushaltsgerätes aus Figur 1 mit weggelassener Seitenwand bei vollständig eingefahrener unterer Ablage,

Figur 3

eine perspektivische Ansicht des Haushaltsgerätes mit Schiebe-Schwenkmechanik entsprechend Figur 2 nach er-folgter Verschiebung der unteren Ablage aus dem Korpus heraus vor dem Anheben der Schiebe-Schwenkmechanik,

Figur 4

eine perspektivische Darstellung des Haushaltsgerätes mit Schiebe-Schwenkmechanik gemäß Figur 1 in der leicht angehobenen Position der unteren Ablage,

Figur 5

eine perspektivische Darstellung des Haushaltsgerätes mit Schiebe-Schwenkmechanik in der vollständig angehobenen Position der unteren Ablage,

Figuren 6 bis 10

den Figuren 1 bis 5 entsprechende Darstellungen einer alternativen Ausführungsvariante der SchiebeSchwenkmechanik und

Figuren 11 bis 15

den Figuren 1 bis 5 entsprechende Darstellungen einer weiteren alternativen Ausführungsvariante der SchiebeSchwenkmechanik.

Embodiments of the invention will be explained in more detail with reference to the accompanying drawings. Show it:

FIG. 1

3 is a perspective view of a first embodiment of a sliding swivel mechanism installed in a domestic appliance during a raising or lowering operation of a lower shelf,

FIG. 2

a perspective view of the household appliance FIG. 1 with omitted side wall with completely retracted lower shelf,

FIG. 3

a perspective view of the household appliance with sliding swivel mechanism accordingly FIG. 2 after he has moved the lower shelf out of the cabinet before lifting the sliding tilt mechanism,

FIG. 4

a perspective view of the household appliance with sliding swivel mechanism according to FIG. 1 in the slightly raised position of the lower shelf,

FIG. 5

a perspective view of the household appliance with sliding pivot mechanism in the fully raised position of the lower shelf,

FIGS. 6 to 10

the FIGS. 1 to 5 corresponding representations of an alternative embodiment of the SchiebeSchwenkmechanik and

FIGS. 11 to 15

the FIGS. 1 to 5 corresponding representations of another alternative embodiment of the sliding pivot mechanism.

In the following description of the figures, terms such as top, bottom, left, right, front, back, etc. refer exclusively to the exemplary representation and position of the sliding pivot mechanism, the tray, the pivot arms, the guide rail, the track, the lever unit, the lever elements and the like. These terms are not intended to be limiting, that is to say, by different working positions or the mirror-symmetrical design or the like, these references may change.

In the FIGS. 1 to 15 three different embodiments of a sliding pivot mechanism according to the invention are shown, with exemplary positions of the sliding pivot mechanism are shown in the course of a lifting operation.

Details on the structure of the sliding pivot mechanism and their operation are in the aforementioned DE 10 2012 107 993 A1 described in more detail, the content of which is hereby incorporated into this application for explaining many details of the sliding pivot mechanism.

Such as in the Figures 2 . 7 and 12 is shown, the sliding tilting mechanism substantially comprises two on the side walls 21 of the body 2 of a piece of furniture or household appliance 1 with a first end parallel to Level of the side walls 21 rotatably fixed and mutually parallel spaced pivot arms 51, 52 of a pivot mechanism 5 on.

For fixing to the side walls 21 of the body 2 are preferably plate-shaped side wall brackets 53 are provided, which in turn are fixed to the side walls 21 of the body 2. At the remote from the wall bracket 53 ends of the pivot mechanism 5, a guide rail 61 of a sliding mechanism 6 of the sliding pivot mechanism is fixed in each case parallel to the plane of the side walls 21 pivotally. As a result, the guide rails 61 held on the pivoting arms 51, 52 can be pivoted from a lower position within the body 2 into a raised upper position in front of the body 2.

The sliding mechanism 6 further has a relative to the guide rail 61 linearly displaceable track rail 62, to which a tray 4 is attached. This allows the tray 4 from a completely retracted into the body 2 position for loading or unloading initially linear out of the body and then, as in the FIGS. 3 to 5 For example, shown pivoting in a raised position in which a loading or unloading is convenient to perform.

The sliding pivot mechanism is mounted in the embodiment shown in the interior 23 of a dishwasher designed as a household appliance 1. The sliding pivot mechanism serves to hold the lower tray 4 positioned below an upper tray 3.

In order to facilitate the raising or lowering of the tray 4, according to a first embodiment of the sliding pivot mechanism, shown in the FIGS. 1 to 5 , A lever unit 7 is arranged on the sliding pivot mechanism.

This lever unit 7 has two angularly shaped lever elements 71 with a first leg 711 and a second leg 712. The here L-shaped lever elements 71 are, such as in FIG. 2 is shown connected to the free ends of the second leg 712 of the lever members 71 by a transverse web 72 with each other.

This transverse web 72 is positioned slightly above, in the retracted position of the tray 4, viewed in a vertical direction z, the front end of the tray 4 in the extension direction x.

Accordingly, the second leg 712 of the lever elements 71 is dimensioned such that the first transverse web 72 is positioned above the tray 4.

The lever elements 71 furthermore have a first leg 711, wherein the free ends of the first legs 711 in the preferred embodiment shown here are connected to one another by a second transverse web 73 for stabilizing the lever unit 7.

Such as in FIG. 3 can be seen, the lever elements 71 are connected via a connecting element 76 and a pivot 75 with the running rail 62 of the sliding mechanism 6.

The first limb 711 extends from the free end of the lever element 71 in the extension direction x to the pivot joint 75. The second limb 712 extends from the pivot 75 to the free end of the lever element 71 in the extension direction x and is configured at right angles. The second leg may also have other shapes.

When moving out of the tray 4 from a usable space 23 of the body 2, the lever unit 7 is first pulled out horizontally together with the tray 4 from the work space 23 of the body 2. For this purpose, the user can take the cross bar 72 instead of the tray 4 itself.

A premature lifting of the tray is thereby according to a preferred embodiment by a fixed to the rail 62 activator (not shown) operable on a locking mechanism to prevent simultaneous pivoting and sliding movement of the sliding mechanism 6 is prevented. To the operation of this locking mechanism is on the DE 10 2012 107 993 A1 directed.

After the tray 4 has reached its maximum pushed out of the body 2 position, the tray 4 can be raised via the pivot mechanism 5 in its upper position. This position is in FIG. 5 shown.

An intermediate position is in the FIG. 4 shown. As can be seen here, the upward pivoting of the tray 4 and the pivot arms 51, 52 of the pivot mechanism 5 is assisted by the user pulling the first cross bar 72 in the vertical direction z.

In this case, the free ends of the first leg 711 of the lever elements 71 are moved on a bottom 24 of the body 2 toward a support surface 81 on the inside of a hinged door 8 of the household appliance 1.

In order to enable a simple method of the lever unit 7 on the floor 24 and the support surface 81 of the flap door 8, rolling elements in the form of rolling elements 74 are arranged at the free ends of the long legs 711 of the lever elements 71, with which the lever unit 7 on the floor 24th or the support surface 81 is movable and supportable.

Due to the pivotal mounting of the lever elements 71 on the rotary joint 75 causes pulling on the cross bar 72 in addition to a method of the rear ends of the lever elements 71 in the extension direction, a lifting operation of the tray 4 supporting force vertically upward in the direction z.

After reaching the maximum raised position of the tray 4, the first transverse web 72 is pivoted into a position close to the carcass above the tray 4, so that the first transverse web 72 does not hinder loading or unloading of the tray 4.

The FIGS. 6 to 10 show a second embodiment of the sliding pivot mechanism. The lever elements 71 'here, in addition to a long leg 713' and a short leg 714 ', a second short leg 715', which adjoins the rear end of the long leg 713 'in the extension direction x, so that the lever elements 71' total about are U-shaped.

Between the free ends of the front in the extension direction x short leg 714 'is here also a first transverse web 72' is arranged, as in the embodiment according to the FIGS. 1 to 5 as a handle by a user is usable. The cross bar 72 'is also positioned above the tray 4 in this embodiment.

The connection of the lever unit 7 'takes place here on the pivot mechanism. 5

This is how, for example, in FIG. 7 shown, the side wall bracket 12 is provided with a sliding guide 54 ', along which in the extension direction x rear free end 716' of the second short leg 715 'during horizontal extension and retraction of the tray 4 is displaceable. When the tray 4 reaches its final position prior to pivoting the tray 4 upwardly, the free end 716 'of the second short leg 715' is coupled to one of the pivot arms 51, 52 of the pivot mechanism 5. The lever unit 7 'is in this in FIG. 8 shown rotationally fixed to the second pivot arm 52.

During the subsequent upward pivoting of the tray 4 and the pivot arms 51, 52 of the pivoting mechanism, by pulling the first transverse web 72 'in the vertical direction z, an upward pivoting of the pivoting levers 51, 52 is supported.

Due to the distance of the first crosspiece 72 'from the attachment point of the second short leg 715' on the pivot arm 52, in particular due to the long lever 713 'of the lever elements 71', a significant support of the lifting of the tray 4 is possible with relatively little effort.

The same applies to the subsequent lowering of the tray 4 in its lower position.

In the FIGS. 11 to 15 a further advantageous embodiment of a sliding pivot mechanism according to the invention shown. In this embodiment, the lever unit 7 "is also rotatably fixed to the pivoting mechanism 5.

How very good in the Figures 14 and 15 can be seen, the lever unit shown here 7 "two pivotally fixed to the pivot mechanism 5 lever elements 71", which are connected at their spaced from the pivot mechanism 5 ends with respective telescoping in telescoping x lifting elements 72 "pivotally.

The lifting elements 77 "are extendable and retractable via a drive unit 78". The drive unit 78 ", for example designed as an electric motor, In this case, it is preferably fixed in a rear area of the work space 23 in the pull-out direction x, near the rear wall 22 on the floor 24 of the body 2.

The connection of the lifting element 72 "with the lever element 71" also takes place via a rotary joint 75 "., In order to support the lifting operation of the tray 4 when lifting in its raised position, is at the ends of the lifting element 77" in the region of the rotary joint 75 the lever elements 71 "each have a rolling element in the form of a rolling element 74" arranged.

In the horizontal process of the lifting elements 77 "associated Endens the lever elements 71" in the extension direction x support on the floor 24 of the body 2 and, as in FIG. 15 is shown, on the inside 81 of the flap door 8 resting rolling elements 74 "the lever member 71" down from.

Due to the length of the lever member 71 "is thereby supported with relatively little effort of the lifting operation of the tray 4 via the pivot mechanism 5.

As in FIG. 12 is shown, the lifting elements 77 "are preferably designed as telescopic rods with a plurality of rod elements 771", 772 ", 773" and 774 ".

In the retracted position of the shelf in the body 2 of the furniture or household appliance 1, the lifting elements 77 are "completely or almost completely retracted into the drive unit 78".

In this variant can be dispensed with a first crosspiece for operation by the user, for example, when operated by a switch or by remote control.

The use of such a sliding pivot mechanism is not limited to a household appliance.

It is also conceivable use in office, doctor's office, living or kitchen furniture with shelves that can be equipped for loading and unloading with such a sliding pivot mechanism.

In addition, the sliding pivot mechanism can be equipped with at least one damping element, for example a fluid damper, in order at least partially to ensure a damped movement of at least one shelf

LIST OF REFERENCE NUMBERS

1

Furniture or household appliance

2

corpus

21

Side wall

22

rear wall

23

utility space

24

ground

3

filing

4

filing

5

swivel mechanism

51

swivel arm

52

swivel arm

53

Side wall bracket

54 '

slide

6

Schiebemechanik

61

guide rail

62

runner

7, 7 ', 7 "

lever unit

71, 71 ', 71 "

lever elements

711

first leg

712

second leg 713 'long leg

713 '

long thigh

714 '

first short leg

715 '

second short leg

716 '

free end

72, 72 '

crosspiece

73

crosspiece

74, 74 "

rolling elements

75, 75 "

swivel

76

connecting member

77 "

lifting

771 '

bar member

772 '

bar member

773 '

bar member

774 '

bar member

78 "

drive unit

8th

folding door

81

supporting

x

extraction direction

z

vertical direction

Claims (15)

1. A sliding-pivoting mechanism of a shelf (4) of a piece of furniture or of a domestic appliance (1) for pulling out and raising the shelf (4) from a body (2) of the piece of furniture or of the domestic appliance (1), comprising

   - at least two pivoting arms (51, 52) of a pivoting mechanism (5), which are pivotably fastened by means of a first end to at least one of the side walls (21) of the furniture body (2) parallel to the plane of the side walls (21) and are arranged parallel to each other at a distance from each other,

   - wherein a guide rail (61) of a sliding mechanism (6) is pivotably fastened to respective second ends of the pivoting arms (51, 52) parallel to the plane of the side walls (21) in such a way that the guide rail (61) can be pivoted from a bottom position within the furniture body (2) to a lifted upper position at least partly outside of the body (2),

   - at least one running rail (62) which is linearly displaceable in the guide rail (61) and on which the shelf (4) is fastened,

   characterized in that

   - the sliding-pivoting mechanism comprises a lever unit (7, 7', 7") which supports a lifting and lowering of the pivoting mechanism (5).
2. A sliding-pivoting mechanism according to claim 1, characterized in that the lever unit (7, 7') comprises two lever elements (71, 71') which are connected to each other by at least one cross member (72, 72', 74).
3. A sliding-pivoting mechanism according to claim 2, characterized in that the lever elements (71, 71') are formed in an angular manner.
4. A sliding-pivoting mechanism according to claim 2 or 3, characterized in that the lever elements (71, 71') comprise at least one first leg (711, 713') and at least one second leg (712, 714'), wherein a first cross member (72, 72') is arranged between the free ends of a second leg (712, 714').
5. A sliding-pivoting mechanism according to claim 3, characterized in that the second leg (712, 714') is formed in such a way that the first cross member (72, 72') is positioned above the shelf (4).
6. A sliding-pivoting mechanism according to one of the preceding claims, characterized in that the lever elements (71) are pivotably fastened to the running rail (62) parallel to the plane of the side walls (21).
7. A sliding-pivoting mechanism according to claim 6, characterized in that rolling or sliding elements (74) are arranged at the ends of the lever elements (71) which are at the rear in the pull-out direction (x), by means of which the lever unit (7) can be supported on a base (24).
8. A sliding-pivoting mechanism according to one of the preceding claims, characterized in that the lever elements (71') of the lever unit (7') are fastened to the pivoting mechanism (5) in alignment parallel to the plane of the side walls (21).
9. A sliding-pivoting mechanism according to claim 7, characterized in that the ends of the lever element (71') which are at the rear in the pull-out direction (x) are displaceably guided on a sliding guide (54') and can be coupled to one of the pivoting arms (51, 52) in a position which is pulled out of the body (2) of the piece of furniture or domestic appliance (1).
10. A sliding-pivoting mechanism according to claim 1, characterized in that the lever unit (7") comprises two lever elements (71") which are pivotably fastened to the pivoting mechanism (5) and a drive unit (78") on at least one lever element (71").
11. A sliding-pivoting mechanism according to claim 10, characterized in that the lever elements (71") are pivotably connected at their ends spaced from the pivoting mechanism (5) to respective lifting elements (77") which are telescopable in the pull-out direction (x) and which can be displaced by the drive unit (78").
12. A sliding-pivoting mechanism according to claim 10, characterized in that rolling or sliding elements (74") are arranged at the ends of the lever elements (71") which are spaced from the pivoting mechanism (5), by means of which the lever elements (71") can be supported on a base (24).
13. A sliding-pivoting mechanism according to claim 10, 11 or 12, characterized in that each of the lever elements (71") is connected to one of the pivoting arms (51, 52).
14. A piece of furniture with a furniture body (2) and at least one shelf (4) fixed in the furniture body (2) by means of a sliding-pivoting mechanism, by means of which the shelf (4) can be pulled out and lifted from the furniture body (2), characterized in that the sliding-pivoting mechanism is formed according to one or several of the preceding claims.
15. A domestic appliance (1), in particular a dishwasher or a cooker, comprising at least one shelf (4) fixed by means of a sliding-pivoting mechanism to the inner sides of a useful space, especially a dishwashing chamber (23) or cooking chamber, by means of which the shelf (4) can be pulled out and lifted from the useful space, characterized in that the sliding-pivoting mechanism is formed according to one or several of the preceding claims.

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