EP3151701B1 - Sliding-pivoting mechanism of a shelf of a piece of furniture or of a domestic appliance, piece of furniture, and domestic appliance - Google Patents

Description

The invention relates to a sliding swivel mechanism of a shelf of a piece of furniture or household appliance for removing or lifting the tray from a body of the furniture or a Nutzraume of the household appliance according to the preamble of claim 1. The invention further relates to a piece of furniture and a household appliance with a sliding -Schwenkmechanik.

Such sliding swivel mechanisms are installed in particular for comfort increase in furniture or household appliances, especially dishwashers or cooking appliances. A shelf installed in such a furniture or household appliance can be moved by means of a sliding pivot mechanism from a lower position by pulling and then upward pivoting into an upper position at which a user can conveniently load or unload stored on or in the tray items ,

A generic sliding pivot mechanism is for example from the WO 2014/03 3092 A1 known.

The slide-swing mechanism described there has proven itself in practice quite well.

The problem is that, in particular with heavy loading of the tray, the locking of the sliding pivot mechanism in the upper position, in which the tray is positioned in the raised position for convenient loading and unloading, not always reliably locked.

It follows from the object of the present invention to provide a sliding pivot mechanism in which the locking of the sliding pivot mechanism is improved.

This object is achieved by a sliding pivot mechanism of a shelf of a piece of furniture or household appliance with the features of claim 1.

The sliding pivot mechanism according to the invention has at least one of the side walls of the body or the working space with a first end in parallel to the plane of the side walls support defined first pivot arm and a rotatably fixed in the same way second pivot arm. The two pivot arms are arranged parallel to each other at a distance.

At the respective second ends of the pivot arms, a guide rail is pivotally fixed parallel to the plane of the side walls so that the guide rail from a lower position within the body or the Nutzraumes in a raised, upper position at least partially outside the body or the Nutzraumes is pivotable , At a linearly displaceable in the guide rail track a tray is attached.

Furthermore, a locking mechanism which is arranged on the guide rail and on one of the swivel arms and is actuated by a guide fixed on the running rail is provided on the sliding swivel mechanism, which serves to prevent a pivoting movement of the sliding swivel mechanism in a raised and a lowered end position.

The locking mechanism has a pivotable on a first pivot arm resiliently held web with a projecting in the direction of the guide rail bolt which is guided along a guide rail attached to the guide element of the lowered end position locking position securing at least in the raised end position locking position.

The fixed to the running rail activator further has a curve guide with which the bolt during raising and lowering of the shelf from the lowered end position locking position secured in the raised end position securing locking position and back is feasible.

With such a curve guide provided in the activator, securing of the locking mechanism after successful pivoting of the sliding pivoting mechanism is made possible in a simple manner.

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

According to an advantageous embodiment of the invention, the cam guide is designed such that the locking mechanism by a pivoting movement automatically locked in the raised end position and can be unlocked by an insertion movement against the extension direction.

This ensures that unlocking can only be done by conscious insertion of the tray and thus the track.

According to a further preferred embodiment variant, the cam guide is formed on inner edges delimiting by a cavity of the activator, with an inlet opening, through which the bolt can be guided into the cavity. The curve guide is thus housed inside the activator and thus protected from damage from the outside.

According to a preferred embodiment, the guide element has respective locking grooves, in which the bolt rests in the respective locking positions, wherein the locking grooves define a guide track of the guide element, along which the bolt can be guided from one of the locking positions to the second of the locking positions.

To unlock the sliding pivot mechanism from the first locking position extending in the direction of the running rail first stop on the activator is arranged in the region of the inlet, with which the bolt from a pivotal movement of the pivot arms locking position and the first locking groove when pulling out of the running rail a pull-out direction is movable out, wherein the bolt is feasible in a subsequent pivotal movement of the pivot arms along the stop in the cavity.

The stop allows a simple unlocking of the sliding pivoting mechanism from the lowered locking position, so that the tray is only in the almost fully extended state can be pivoted upwards.

The cam guide is designed according to a further preferred embodiment so that the bolt rests during the pivotal movement of the pivot arms on none of the cavity of the activator bounding inner edge. The leadership of the bolt takes place here along the guideway of the guide element.

In a further preferred embodiment variant, the cavity has an edge on the outgoing side from the entry region to a vertical one Edge rising slope, with the bolt from a pivotal movement of the pivot arms locking position in the second locking groove by inserting the running rail against the extension direction out is movable.

As a result, by deliberately piecewise insertion of the tray and thus the running rail of the bolt on the rising slope pushed upwards and thus moved out of the second locking groove, whereby the pivoting movement of the sliding pivot mechanism is released again and the tray can be pivoted down ,

According to an alternative embodiment of the invention, the cam guide is designed such that the locking mechanism can be unlocked by a pull-out movement of the running rail in the extension direction from the upper locking position. The curve guide is preferably designed as a heart curve.

According to a further advantageous embodiment, an end stop for limiting the travel path of the running rail is formed at a front end in the extension direction of the guide rail, in order to prevent the running rail is pushed too far out of the guide rail.

Figuren 1 und 2

eine perspektivische Ansicht einer Ausführungsvariante einer erfindungsgemäßen Schiebe-Schwenkmechanik in vollständig abgesenkter Position sowie eine Detaildarstellung des mit II in Figur 1 gekennzeichneten Bereichs,

Figuren 3 und 4

eine perspektivische Ansicht der Schiebe-Schwenkmechanik aus Figur 1 nach erfolgter Verschiebung der Laufschiene aus der Führungsschiene vor dem Anheben der Schiebe-Schwenkmechanik sowie eine Detaildarstellung des mit IV in Figur 3 bezeichneten Bereichs;

Figuren 5 und 6

perspektivische Darstellungen der Schiebe-Schwenkmechanik in einer Position, bei der die Schwenkbewegung der Schwenkarme freigegeben ist, wobei Figur 6 eine Detaildarstellung des mit VI in Figur 5 bezeichneten Ausschnitts darstellt;

Figuren 7 und 8

den Figuren 5 und 6 entsprechende perspektivische Darstellungen der Schiebe-Schwenkmechanik während einer Schwenkbewegung, wobei Figur 8 eine Detaildarstellung des mit VIII in Figur 7 gekennzeichneten Ausschnitts darstellt;

Figuren 9 und 10

den Figuren 7 und 8 entsprechende Darstellungen der Schiebe-Schwenkmechanik in weiter fortgeschrittenem Zustand der Verschwenkung kurz vor Erreichen der angehobenen Endposition, wobei Figur 10 eine Detaildarstellung des mit X in Figur 9 gekennzeichneten Ausschnitts darstellt;

Figur 11

eine der Figur 10 entsprechende Darstellung der Schiebe-Schwenkmechanik, jedoch in dem in der zweiten Arretierposition arretierten Zustand,

Figuren 12 und 13

den Figuren 9 und 10 entsprechende Ansichten der Schiebe-Schwenkmechanik während der Freigabe der Schiebe-Schwenkmechanik aus der oberen Arretierposition, wobei Figur 13 eine Detaildarstellung des mit XIII in Figur 12 gekennzeichneten Ausschnitts darstellt,

Figur 14

eine perspektivische Ansicht einer alternativen Ausführungsvariante einer erfindungsgemäßen Schiebe-Schwenkmechanik mit alternativ ausgebildetem Aktivator in vollständig abgesenkter Position, und

Figuren 15a bis g

perspektivische Darstellungen der Schiebe- Schwenkmechanik gemäß Figur 14 in unterschiedlichen Positionen zur Darstellung des Ablaufs eines Anhebens und Absenkens der Schiebe- Schwenkmechanik.

The invention will be explained in more detail with reference to an embodiment with reference to the accompanying drawings. Show it:

Figures 1 and 2

a perspective view of an embodiment of a sliding pivot mechanism according to the invention in fully lowered position and a detailed representation of the II with in FIG. 1 marked area,

FIGS. 3 and 4

a perspective view of the sliding pivot mechanism FIG. 1 after the displacement of the track from the guide rail before lifting the sliding pivot mechanism and a detailed representation of the IV in FIG. 3 designated area;

FIGS. 5 and 6

perspective views of the sliding pivot mechanism in a position in which the pivoting movement of the pivot arms is released, wherein FIG. 6 a detail of the with VI in FIG. 5 marked section represents;

FIGS. 7 and 8

the Figures 5 and 6 corresponding perspective views of the sliding pivot mechanism during a pivoting movement, wherein FIG. 8 a detailed view of the VIII with in FIG. 7 representing marked section;

FIGS. 9 and 10

the FIGS. 7 and 8th corresponding representations of the sliding pivot mechanism in more advanced state of pivoting shortly before reaching the raised end position, wherein FIG. 10 a detailed representation of the X in FIG. 9 representing marked section;

FIG. 11

one of the FIG. 10 corresponding representation of the sliding pivot mechanism, but in the locked in the second locking position state,

FIGS. 12 and 13

the Figures 9 and 10 corresponding views of the sliding pivot mechanism during the release of the sliding pivot mechanism from the upper locking position, wherein FIG. 13 a detailed representation of the XIII with in FIG. 12 marked section,

FIG. 14

a perspective view of an alternative embodiment of a sliding pivot mechanism according to the invention with alternatively trained activator in fully lowered position, and

FIGS. 15a to g

perspective views of the sliding swivel mechanism according to FIG. 14 in different positions to illustrate the process of raising and lowering 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 example representation and position of the sliding pivot mechanism, pivoting arms, guide rail, running rail, activator and the like chosen in the respective figures. These terms are not meant 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 Figures 1-13 a variant embodiment of a sliding pivot mechanism according to the invention is shown, with exemplary positions of the sliding pivot mechanism are shown in the course of a lifting operation and a subsequent lowering operation.

Such as in FIG. 1 is shown, the sliding pivot mechanism has two mutually parallel spaced pivot arms 15, 16.

The pivot arms 15, 16 are attached to a first end via a hinge on a side wall bracket 14. The side wall bracket 14 in turn is preferably mounted on a side wall of a piece of furniture or household appliance, such as a dishwasher. Under a side wall is also understood the inner wall in household appliances.

It is also conceivable attachment of the first ends of the pivot arms 15, 16 directly to the side wall of the furniture or household appliance.

The spaced from the first ends second ends of the pivot arms 15, 16 are pivotally mounted on a guide rail 22 a pull-out guide.

The pullout guide has in addition to the guide rail 22 at least one running rail 1, which is linearly movable in the guide rail 22.

The running rail 1 is preferably coupled via a ball bearing with the guide rail 22. An end stop 53 on the guide rail serves to limit the travel of the track rail 1 in the guide rail 22. The end stop 53 cooperates with the ball bearing. Other forms of end stops on various fixed or movable parts are conceivable. To extend the extension, can be between guide rail 22 and runner 1 at least one further movable rail to be arranged.

At the front in the extension direction A end of the track rail, a plug 2 is preferably arranged, which serves to limit the travel of the track rail 1 in the guide rail 22 against the extension direction.

For fixing the tray 34 to the sliding-pivot mechanism, an activator 6 and a fixing device 8 are fixed to the track rail 1, where the tray 34 can be fastened, in particular latched.

Details for attaching the tray 34 to the activator 6 and the fixing device 8 are in the aforementioned WO 2014/03 3092 A1 described in more detail, the content of which is hereby incorporated into this application for explaining many details of the sliding pivot mechanism.

As FIG. 1 Furthermore, it can be seen on the guide rail 22, a damping unit 30 is arranged, which is activated by means of the activator 6 when retracting the tray 34 in its final position in the body of the furniture or in the useful space of the household appliance.

Also conceivable here is the arrangement of a self-closing device or a combined self-closing damping device with which the tray 34 is preferably drawn into its final position in the furniture carcass or Haushaltsgerätenutzraum.

Furthermore, the sliding swivel mechanism has a locking mechanism which is arranged on the guide rail 22 and on one of the swivel arms 15, 16 and can be actuated by the activator 6 fixed on the running rail 1.

The locking mechanism prevents a pivotal movement of the sliding pivot mechanism in a raised and in a lowered end position of the sliding pivot mechanism.

The locking mechanism is preferably made of a on one of the pivot arms 15, 16 pivotally and resiliently held web 18, on which a projecting in the direction of the guide rail 22 pin 19 is provided.

The web 18 is preferably held pivotably on the pivot arm 15 via a pivot pin 21. For resilient support is a spring element 20, which is supported on the one hand on the web 18 and on the other hand on the pivot arm 15.

The bolt 19 is in operative connection with a guide element 17. This guide element 17, shown for example in FIG FIG. 6 , Essentially consists of a plate-shaped element, with an edge formed as a guide rail 28, which is bounded by two locking grooves 23, 24.

The locking positions of the locking mechanism are those positions in which the arranged on the resiliently held web 18 bolt 19 rests in one of the two locking grooves 23, 24.

The lower locking position is in the FIGS. 1 and 2 shown.

The first pivot arm 15 has to guide the bolt 19 further comprises a perpendicular to the longitudinal axis of the first pivot arm 15 extending end 25 with a guide groove 26 through which the bolt 19 extends.

As in the Figures 3 and 4 is shown, the activator 6 has a first stopper 7, with which the bolt 19 from a pivotal movement of the pivot arms 15, 16 blocking position in the first locking groove 23 when pulling the running rail 1 in an extension direction A is movable out.

The in the Figures 5 and 6 shown position of the track rail 1 and the activator 6 and the in FIG. 6 shown bolt 19 shows the release position of the locking mechanism, in which a pivoting of the pivot arms 15, 16 is made possible.

A partially raised position of the sliding pivot mechanism is in the FIGS. 7 and 8th shown. In this position, the running rail 1 is pushed completely out of the guide rail 22 to the front.

As in FIG. 8 can be seen, the bolt 19 is guided by the stop 7 through an input portion 39 of a cavity 36 within the activator 6 along a guide track 28 of the guide member 17 during the lifting process. As in FIG. 8 Furthermore, it can be seen clearly, the bolt 19 is during the pivotal movement of the pivot arms 15, 16 at none of the cavity 36 of the activator 6 bounding inner edges 37, 38 at.

The resiliently held on the first pivot arm 15 web 18 is deflected by the resting of the bolt 19 on the guideway 28 from its rest position relative to the first pivot arm 15 against a spring force.

In the FIGS. 9 to 11 the position of the sliding pivot mechanism is shown, in which the pivot arms 15, 16 have reached their upper end position.

FIG. 10 shows the bolt 19 immediately above the second locking groove 24, which is preferably provided on its side remote from the guide track 28 side with an elevated stop 33 against which the bolt 19 abuts.

By the spring force of the web 18 of the bolt 19 is pulled in this position down into the second locking groove 24 or pressed. In this in FIG. 11 shown upper locking position is a pivotal movement of the pivot arms 15, 16 is not possible, so that in this position, the tray 34 has secured reached their upper loading or unloading position.

If after loading or unloading the tray 34 are retracted again into the body of the furniture or the useful space of the household appliance, must, as in the Figures 12 and 13 shown, the tray 34 and thus the track rail 1 initially a piece against the extension direction A on the body of the furniture or on the useful space of the household appliance to be pushed.

In this case, the activator 6 is pressed against the pin 19 with an inner edge 35 rising obliquely toward an inner edge 37 at the outward edge of the cavity 36 and thus lifts the bolt 19 during the further movement of the activator 6 against the extension direction A from the second locking groove 24th out.

As a result, the pivotal movement of the pivot arms 15, 16 is released again, so that the tray 34 and thus the sliding pivot mechanism can now be moved down again until the pin 19 is pushed back into the lower first locking groove 23 and the tray 34 together can be retracted completely with the running rail 1 in the body of the furniture or in the useful space of the household appliance.

In an alternative embodiment, shown in the Figures 14 and 15a to 15g , The cam guide is designed such that the locking mechanism can be unlocked by a pull-out movement of the track rail 1 in the extension direction A from the locking position securing the raised end position.

The activator 6 is in this embodiment, as in FIG. 14 is shown, preferably provided with a trained as a heart curve 40 curve guide. Immediately below the heart curve 40, as described above, the first stop 7 is integrally formed on the activator 6, with the bolt 19 from a pivotal movement of the pivot arms 15, 16 blocking position in the first locking groove 23 when pulling the running rail 1 in the extension direction A out movable is.

The unlocked position of the bolt 19 is in FIG. 15a shown, in which the tray 34 is still shown in the lower, lowered position, but already pulled out of the (not shown) body of the furniture or the useful space of the household appliance in the extension direction A.

During the subsequent upward pivoting of the pivot arms 15, 16, the bolt 19, as in FIG. 15b can be seen, in a direction of extension A considered front portion of the heart curve 40 a. Upon further pivoting of the pivot arms 15, 16 in the horizontal position in which the tray 34 has reached its maximum raised position, the bolt 19 passes the first curve of the heart cam 40 and is held by the resiliently held on the first pivot arm 15 web 18 in the locking position in the second locking groove 24 and thus also pressed into a central lowering 41 of the heart cam 40. Thus, the tray 34 is secured in the raised position against pivoting of the sliding pivot mechanism.

In order to pivot the tray 34 back into its lowered position after loading or unloading, the tray 34 is moved together with the running rail 1 and the activator 6 by a short distance in the extension direction A.

In this case, the bolt 19 is pressed out of the second locking groove 24 by the piece of the heart cam 40 rising in the extension direction A. The bolt 19 is thereby moved in the direction of extension A considered rearward bending of the heart cam 40, as in FIG. 15f shown.

Upon subsequent downward pivoting of the tray 34 to the lower position as shown in FIG Figure 15g , The bolt 19 then finally comes back in During the subsequent insertion of the tray 34 and thus the activator 6 against the extension direction A of the locking pin 19 is then inserted into the first locking groove 23, so that the tray 34 is secured against pivoting upwards.

To support the raising or lowering movement of the tray 34, a lifting and / or lowering aid 31 is preferably provided on at least one of the side walls or the side wall holder 14, with which the pivoting movement of the pivot arms 15, 16 is supported.

The lifting or lowering aid 31 is preferably designed as a tension spring, which is attached to respective bolts 27 on the one hand on the side wall bracket or the side wall and on the other hand on the second pivot arm 16.

In order to prevent over the upper end position of the pivot arms 15, 16 beyond pivotal movement of the pivot arms 15, 16, a stop 32 is preferably provided on the side wall bracket 14, which abuts on reaching the upper end position of the second pivot arm 16 at this.

LIST OF REFERENCE NUMBERS

1

runner

2

Plug

6

activator

7

attack

8th

fixing

14

Side wall bracket

15

swivel arm

16

swivel arm

17

guide element

18

web

19

bolt

20

spring element

21

pintle

22

guide rail

23

locking groove

24

locking groove

25

The End

26

guide

27

bolt

28

guideway

30

damping unit

31

Lifting or lowering aid

32

attack

33

attack

34

filing

35

inner edge

36

cavity

37

inner edge

38

inner edge

39

entrance area

40

cardioid

41

lowering

53

end stop

A

extraction direction

Claims (11)

1. A sliding-pivoting mechanism of a shelf (34) of a piece of furniture or domestic appliance for pulling out and lifting the shelf (34) from a body of the piece of furniture or a useful space of the domestic appliance, especially a dishwasher, comprising

   - a first pivot arm (15) which is rotatably fixed to at least one of the side walls of the furniture body or the useful space with a first end parallel to the plane of the side walls,

   - a second pivot arm (16) which is rotatably fixed to at least one of the side walls of the furniture body or the useful space with a first end parallel to the plane of the side walls,

   - wherein the pivot arms (15, 16) are arranged in parallel and at a distance from each other,

   - wherein a guide rail (22) is pivotably fastened to the respective second ends of the pivot arms (15, 16) parallel to the plane of the side walls in such a way that the guide rail can (22) be pivoted from a bottom position within the furniture body or the useful space to a lifted, upper position at least partly outside of the furniture body or the useful space,

   - at least one running rail (1) which is linearly displaceable in the guide rail (22) and on which the shelf (34) is fixed,

   - wherein the sliding-pivoting mechanism comprises a locking mechanism, which is arranged on the guide rail (22) and on one of the pivot arms (15, 16) and can be actuated by an activator (6) fixed to the running rail (1), for preventing a pivoting movement of the sliding-pivoting mechanism in a lifted and a lowered end position,

   - wherein the locking mechanism comprises a web (18), which is resiliently and pivotably held on the first pivot arm (15, 16), with a pin (19) protruding in the direction of the guide rail (22), which pin can be guided along a guide element (17) fixed to the guide rail (22) from the locking position securing the lowered end position at least to the locking position securing the lifted end position,

   - the activator (6) fixed to the running rail (1) comprises a curve guide, with which the pin (19), during the lifting and lowering of the shelf (34), can be guided from the locking position securing the lowered end position to the locking position securing the lifted end position and vice versa

   characterized in that
   that the curve guide is formed in such a way that the locking mechanism can be unlocked by a push-in movement against the pull-out direction (A).
2. A sliding-pivoting mechanism according to claim 1, characterized in that the guide element (17) comprises respective locking grooves (23, 24) in which the pin (19) rests in the respective locking positions, wherein the locking grooves (23, 24) delimit a guide track (28) of the guide element (17), along which the pin (19) can be guided from one of the locking positions to the second one of the locking positions.
3. A sliding-pivoting mechanism according to claim 1 or 2, characterized in that the curve guide is formed in such a way that the locking mechanism is automatically locked by a pivoting movement to the lifted end position.
4. A sliding-pivoting mechanism according to one of the preceding claims, characterized in that the curve guide is formed on inner edges (37, 38) which delimit a cavity (36) of the activator (6), having an inlet region (39) through which the pin (19) can be guided into the cavity.
5. A sliding-pivoting mechanism according to claim 4, characterized in that a first limit stop (7) extending downwardly in the direction of the running rail (1) is arranged in the region of the inlet region (39), with which the pin (19) can be moved out from a position blocking a pivoting movement of the pivot arms (15, 16) in the first locking groove (23) when pulling out the running rail (1) in a pull-out direction, wherein the pin (19) can be guided along the limit stop (7) into the cavity (36) during a subsequent pivoting movement of the pivot arms (15, 16).
6. A sliding-pivoting mechanism according to one of the claims 4 to 5, characterized in that the pin (19), during the pivoting movement of the pivot arms (15, 16), does not rest on any of the inner edges (37, 38) that delimit the cavity (36) of the activator (6).
7. A sliding-pivoting mechanism according to one of the claims 4 to 6, characterized in that on an edge on the pull-out side the cavity (36) comprises an inner edge (37) ascending obliquely from the inlet region (39) to a vertically extending inner edge (35), with which the pin (19) can be moved out of a position in the second locking groove (24) which blocks a pivoting movement of the pivot arms (15, 16) by pushing in the running rail (1) against the pull-out direction (A).
8. A sliding-pivoting mechanism according to the preamble of claim 1, characterized in that the curve guide is formed as a cardioid (40) in such a way that the locking mechanism can be unlocked by a pull-out movement of the running rail (1) in the pull-out direction (A) from the locking position securing the lifted end position.
9. A sliding-pivoting mechanism according to one of the preceding claims, characterized in that an end stop (53) for limiting the path of the running rail (1) is formed on an end of the guide rail (22) which is situated at the front in the pull-out direction (A).
10. A piece of furniture with a furniture body and at least one shelf fixed in the furniture body with a sliding-pivoting mechanism, with which the shelf can be pulled out of and lifted from the furniture body, characterized in that the sliding-pivoting mechanism is formed according to one or several of the preceding claims.
11. A domestic appliance, especially a dishwasher or a cooking appliance, having at least one shelf (34) fixed to the inner sides of a useful space, especially a dishwashing space or a cooking space, by a sliding-pivoting mechanism, with which the shelf (34) can be pulled out of and lifted from the useful space, characterized in that the sliding-pivoting mechanism is formed according to one or several of claims 1 to 9.

Images