EP3780995B1 - Storage shelf for a piece of furniture or household appliance, piece of furniture and household appliance - Google Patents

Description

The present invention relates to a shelf for a piece of furniture or a household appliance according to the preamble of claim 1 and a piece of furniture or a household appliance.

A shelf in which a turntable is installed directly in a base plate of the shelf is, for example, from DE 42 16 765 A1 famous.

From the post-published generic DE 10 2017 106 170 A1 is a relative to a support plate forcibly guided, simultaneously rotatory and translatory movable storage known, which allows access to otherwise difficult to reach surfaces in a storage space of a piece of furniture or household appliance such as a refrigerator or freezer.

A disadvantage of these storage shelves has been that it can happen that the shelf can move independently relative to the support plate, especially if the load is uneven or the plate is not exactly horizontally positioned, which can also be caused by the body of the furniture or Household appliance can be caused.

Furthermore, when a tensile force is exerted that acts in the middle of a front edge of the shelf and accordingly does not exert any torque on the shelf, the rolling elements between the support plate and shelf may be misaligned, so that a subsequent rotational movement is blocked due to this misalignment.

At the from the WO 87/04325 A1 known, in the shape of a Reuleaux triangle shaped tray are arranged at the triangle tips of the tray rolling balls, which are guided in a square shaped with rounded corners, up to the height of the rolling balls closed raceway to prevent misalignment of the tray.

A first object of the present invention is to further develop the storage shelf in such a way that the rolling elements are effectively prevented from becoming blocked as a result of incorrect operation.

A second object of the present invention is to further develop the shelf to the effect that the shelf is prevented from automatically extending relative to the support plate.

The first object is achieved by a storage shelf with the features of claim 1.

The tasks are also solved by a piece of furniture with the features of claim 10 and a household appliance with the features of claim 11.

The storage shelf according to the invention has a support plate which is arranged in a stationary manner on a body of the piece of furniture or household appliance and a shelf which is forcibly guided relative to the support plate and can simultaneously be moved rotationally and translationally in a pull-out direction.

Mutually facing bearing surfaces of the support plate and the shelf each have at least predominantly closed, circumferential rolling element running grooves, in which rolling elements are guided.

The bearing surfaces of the support plate and the shelf have respective shaped elements facing the other bearing surface, which force an at least partially rotary movement of the shelf to move the shelf relative to the support plate from a starting position in the direction of a loading and unloading position.

Shaped elements designed as pegs protrude from one of the bearing surfaces and, in the starting position of the shelf, are positioned in the extension direction behind shaped elements designed as cams, which protrude from the other of the bearing surfaces.

Such shaped elements can be easily attached or formed on the bearing surfaces of the support plate and the shelf.

The arrangement of these shaped elements on the bearing surfaces of the support plate and the tray makes it easy to pull out the pivoted ones Shelf prevented by center-acting pulling so that a person attempting to move the shelf from the home position toward a loading and unloading position is caused to further laterally grip the shelf to apply torque to the shelf and thereby a simultaneous to cause rotational movement together with a translational movement of the tray.

Shaped elements of this type, designed as cams or pins, enable reliable operation of the storage shelf and can be molded or attached to the bearing surfaces in a simple manner.

Advantageous design variants of a shelf according to the invention are the subject matter of the dependent claims.

According to a further preferred embodiment variant, the cams are preferably designed with two legs, with a first cam leg being aligned at an angle to a second cam leg in the plane of the first bearing surface.

In order to prevent the shelf from automatically extending, the shelf has, as described above, a support plate, a shelf that can be moved relative to this, the mutually facing bearing surfaces of which also have rolling element running grooves, as described above, in which rolling elements are guided, the bearing surfaces of the supporting plate and the shelf have respective latching elements facing the respective other bearing surface, which engage in one another at least in the initial position of the support plate and the shelf.

With such latching elements provided in the bearing surfaces of the support plate and the shelf, the user can tell by touch whether the shelf has reached its starting position.

It is particularly advantageous if the latching elements are arranged between the bearing surfaces of the shelf and the support plate in such a way that they are invisible from the outside. As a result, they are optimally protected against contamination and damage.

To move the tray out of this starting position, a certain minimum force is required, which overcomes the latching and thus frees the movement of the tray relative to the support plate.

According to an advantageous embodiment variant, the latching elements of the first of the bearing surfaces are in the direction of the second of the bearing surfaces protruding caps and the locking elements of the second of the bearing surfaces are formed as beads.

This enables the shelf to be reliably and adequately latched relative to the support plate, which prevents the shelf from automatically extending out and at the same time requires only a small minimum manual force in order to release the shelf from the latching with the support plate.

According to a further preferred embodiment variant, the support plate is detachably held on the body of the piece of furniture or household appliance by means of at least one adapter.

According to a further advantageous embodiment variant, the shelf has a base plate which can be fixed to the body of the piece of furniture or household appliance by means of the adapter designed as a base plate holder. The support plate rests on the base plate.

The shelf according to the invention can preferably be used in a piece of furniture or a household appliance, in particular in a refrigerator or freezer. For this purpose, the piece of furniture or the household appliance each has a body for accommodating the storage shelf.

Fig. 1

eine perspektivische isometrische Darstellung einer Ausführungsvariante eines erfindungsgemäßen Ablagebodens,

Fig. 2

eine perspektivische Darstellung des Ablagebodens mit nach oben abgehobener Ablage zur Darstellung der Lagerflächen der Tragplatte und der Ablage,

Fig. 3

eine isometrische Draufsicht auf den Ablageboden in der Ausgangsstellung,

Fig. 4 u. 5

eine Detailansicht der in Fig. 3 gezeigten Darstellung mit um 1° gegen den Uhrzeigersinn rotierter Ablage relativ zur Tragplatte,

Fig. 6 u. 7

den Fig. 4 und 5 entsprechende Darstellungen bei um 2° gegen den Uhrzeigersinn rotierter Ablage relativ zur Tragplatte,

Fig. 8

eine isometrische Draufsicht auf den Ablageboden in der Ausgangsstellung mit eingezeichneter Schnittebene,

Fig. 9

eine Schnittdarstellung der in Fig. 8 mit A bezeichneten Schnittebene zur Darstellung der Rastelemente,

Fig. 10

eine perspektivische Darstellung einer alternativen Ausführungsvariante des Ablagebodens zur Darstellung montierbarer Rastelemente,

Fig. 11

eine perspektivische Darstellung der Unterseite des Ablagebodens gemäß Figur 10,

Fig. 12

eine Schnittdarstellung des in Fig. 10 und 13 gezeigten Ablagebodens und der auf dieser ruhenden Ablage zur Darstellung der Rastelemente,

Fig. 13

eine perspektivische Darstellung der alternativen Ausführungsvariante der Ablage gemäß Figur 12,

Fig. 14

ein Möbel mit erfindungsgemäßen Ablageböden und

Fig. 15

ein Haushaltsgerät mit erfindungsgemäßen Ablageböden.

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

1

a perspective isometric view of an embodiment of a shelf according to the invention,

2

a perspective view of the shelf with the shelf lifted up to show the bearing surfaces of the support plate and the shelf,

3

an isometric top view of the shelf in the starting position,

Figures 4 and 5

a detailed view of the in 3 shown with tray rotated counter-clockwise by 1° relative to the support plate,

Figures 6 and 7

the 4 and 5 Corresponding representations with the shelf rotated counterclockwise by 2° relative to the support plate,

8

an isometric top view of the shelf in the initial position with the section plane drawn in,

9

a sectional view of the 8 sectional plane labeled A to show the latching elements,

10

a perspective view of an alternative embodiment variant of the storage shelf to show mountable locking elements,

11

according to a perspective view of the underside of the shelf figure 10 ,

12

a sectional view of the in 10 and 13 shown storage shelf and on this resting shelf to show the locking elements,

13

a perspective view of the alternative embodiment of the tray according to figure 12 ,

14

a piece of furniture with shelves according to the invention and

15

a household appliance with shelves according to the invention.

In the following description of the figures, terms such as top, bottom, left, right, front, rear, etc. refer exclusively to the exemplary representation and position of the shelf, the base plate, support plate, shelf, base plate holder 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 1 is denoted by the reference numeral 1 as a whole an embodiment of a shelf.

The storage shelf 1 has a body 13, 14 of a piece of furniture 11 or a household appliance 12 (shown by way of example in FIGS figures 14 and 15 ) base plate 2 that can be fastened in a fixed position and a support plate 3 arranged on the base plate 2.

On this support plate 3 is a tray 4 that can be moved in rotation and translation at the same time.

For the forced simultaneous rotary and translatory movement or prevention of an exclusively linear movement in a pull-out direction A of the shelf 4, mutually facing bearing surfaces 31, 42 of the support plate 3 and the shelf 4 have, as in 2 is shown, respective at least predominantly closed, circumferential running grooves 32, 44, in which rolling elements 6 are guided. In particular balls are used here as rolling bodies 6 .

The support plate 3 is releasably placed on the base plate 2 via an adapter designed as a base plate holder 5, as is shown in FIGS Figures 1 to 3 is shown. The base plate holder 5 is attached to the body 13, 14 of the piece of furniture 11 or household appliance 12 in a conventional manner that is not shown here.

It is also conceivable to fix the support plate 3 itself to such an adapter in such a way that the base plate 2 could also be omitted in an alternative variant of the storage shelf 1 .

For the design of the rolling body grooves 32, 44 in the mutually facing bearing surfaces 31, 42 of the support plate 3 and the shelf 4 is hereby expressly referred to DE 10 2017 106 170 A1 referenced, in which the rolling element running grooves are referred to as running grooves.

The rolling element running grooves 32, 44 are arranged for the forced simultaneous rotary and translational movement of the tray 4 in such a way that in the bearing surface 42 of the tray 4 two partially overlapping inner rolling element running grooves 44 and two also partially overlapping outer rolling element running grooves 44 in the bearing surface 42 of the tray 4 are introduced. All of these rolling element running grooves 44 are designed here as closed, circumferential rolling element running grooves.

Likewise, 3 inner and outer roller body grooves 32 are introduced into the bearing surface 31 of the support plate. The inner rolling element running groove of the support plate 3 is designed as a closed, circumferential rolling element running groove. The outer rolling element running groove is designed to be open towards a front side of the shelf 1 .

The rolling elements 6 are accommodated in a rolling element cage 9 . In the embodiment variants shown here, the rolling element cage 9 is designed in the form of a circular ring with four arms which extend radially outwards from the circular ring and at the free ends of which a further rolling element 6 is accommodated in each case.

The Wälzkörperlaufrillen 32, 44 are shaped such that when force is applied to the tray 4 in the horizontal direction, the tray 4 from a starting position, as shown in the 1 and 3 is shown, is movable relative to the support plate 3 in the direction of a loading and unloading position, in which the tray 4 is not only rotated through 90° or 180°, but also shifted by a predetermined distance to facilitate loading and unloading in the pull-out direction A .

The movement from this loading and unloading position back to the starting position is just as easy by exerting force in the horizontal direction in the closing direction, i.e. opposite to the pull-out direction A, in which the shelf 4 is either moved further into the closed position while maintaining the initial direction of rotation, or also under reversal of the direction of rotation.

In order to bring about a simultaneous rotational and translational movement of the tray 4, it is necessary to apply the force to the tray 4 in the horizontal direction not in the center of the front side of the tray 4, but at a distance from the center of the front side in order to apply a torque by one Axis that is perpendicular to the support plate 3 to exercise on the tray 4.

In order to prevent the rolling elements 6 from being lifted out of the rolling element running grooves 32, 44 in the event of a central attack, the bearing surfaces 31, 42 of the support plate 3 and the shelf 4 have shaped elements which face the other bearing surface 42, 31 in each case and which are used to move the shelf 4 relative to force an at least partially rotational movement of the shelf 4 to the support plate 3 from an extended position in the direction of a loading and unloading position.

As for example in 2 is clearly visible, for this purpose shaped elements designed as pins 45 protrude from the bearing surface 42 and are positioned behind shaped elements designed as cams 34 in the extension direction A in the starting position of the tray 4, which protrude from the bearing surface 31 of the support plate 3, like it in the figures 1 and 3 can be seen. There are four pins 45 as an example. In this exemplary embodiment, the pins 45 are located in the four edge regions of the shelf 4.

The cams 34 are arranged, in particular molded, in the corner regions of the support plate 3 near the rear edge connected to the base plate holder 5 .

The cams 34 are preferably formed with two legs, with a first cam leg 341 in the plane of the first bearing surface 31 being oriented at an angle, in particular at an obtuse angle, to a second cam leg 342, as is shown, for example, in FIGS Figures 4 to 7 is shown. It is also conceivable for the cams 34 to be curved, in particular in the shape of a circular arc.

The second cam legs 342 on the right and left rear edge of the support plate 3 are aligned with one another in such a way that the pins 45 protruding from the shelf 4 prevent a purely translational movement in the extension direction A, as is shown in FIG 3 is shown.

A simultaneous rotational and translational movement, however, as in the Figures 4 to 7 shown, enabled. That's how they show figures 4 and 5 respective detailed representations of the positions of the rear pins 45 relative to the cams 34 with tray 4 pivoted by 1° to the left.

As in 4 shown, the pin 45 of the left rear corner of the tray 4 (according to the in 3 shown) from a position behind the first cam leg 341 to a position to the side of the second cam leg 342.

In order to prevent the pins 45 from resting on the bearing surface 31 of the support plate 3, the bearing surface 31 of the support plate 3 also has guide grooves 33, which correspond to the rolling element running grooves 32, 44 and the arrangement of the pins 45 on the bearing surface 42 of the shelf 4 are embedded in the bearing surface 31 of the support plate 3.

figure 5 also shows the position of the shelf 4 pivoted by 1° to the left relative to the support plate 3 based on the position of the rear right corner of the support plate 3, in which the pin 45 can be moved further to the left along the first cam leg 341.

the figures 6 and 7 show a den figures 4 and 5 Corresponding representation with tray 4 pivoted by 2° relative to support plate 3.

The pin 45 in the rear left corner of the shelf 4 has moved further along the second cam leg 342 in the direction of its free end, while the pin 45 in the rear right corner of the shelf 4 has moved a little further in the direction of the free end of the first cam leg 341 of the rear right cam 34 has moved.

As in the figures 2 and 3 is also shown, such pins 45 are also provided in the area of the front edge of the tray 4, which in the starting position of the tray 4 protrude into guide grooves 33 embedded in the area of the front corners.

These guide grooves 33 are also shaped in such a way that a purely translational movement in the pull-out direction A due to the front pins 45 striking the side edges of the guide grooves 33 is prevented.

To prevent a tilting movement of the shelf 4 about a tilting axis parallel to the shelf surface 41 of the shelf 4 , an anti-tilt element 7 is arranged on the support plate 3 , preferably centrally on the rear side edge of the support plate 3 . The anti-tilt element 7 is shaped in such a way that it overlaps an upper edge of the shelf 4 .

The axial fixation of the support plate 3 with the shelf 4 via a fixing device 8, as in the Figures 1 to 3 is shown.

This fixing device 8 consists essentially of a screw protruding through a slot 35 in the support plate 3 extending in the extension direction A, which is secured with a sliding ring and a nut on the underside of the support plate 3 facing away from the bearing surface 31 and on which the bearing surface 42 of the Tray 4 facing away from the shelf 41 is secured by a cap which covers a mounting receptacle 47 through which the screw of the fixing device 8 extends.

As in the Figures 1 to 3 is also shown, the bearing surfaces 31, 42 of the support plate 3 and the shelf 4 have respective locking elements facing the other bearing surface 42, 31, which engage with one another at least in the starting position of the support plate 3 on the shelf 4.

In the embodiment variant shown here, these latching elements are designed as caps 36 and beads 46, with the caps 36 protruding from the bearing surface 31 of the support plate 3 in the direction of the bearing surface 42 of the shelf 4 and the beads 46 being recessed in the bearing surface 42 of the shelf 4 are, as is particularly the case in 9 , a section through an in 8 section plane marked AA can be seen.

Conversely, recessed beads can also be formed on the bearing surface 31 of the support plate 3 and raised spherical caps can be formed on the bearing surface 42 of the shelf 4 .

Instead of the spherical caps 36 and beads 46 shown here as latching elements, it is also conceivable to arrange magnetic closers, spring bolts, spring-loaded balls or spring-loaded projections on the bearing surfaces 31, 42 of the support plate 3 and/or the tray 4.

Instead of beads, there can also be projections as counterparts, behind which the counterpart elements latch, or recesses.

In this exemplary embodiment, the latching elements are arranged between the bearing surfaces 42, 31 of the tray 4 and the support plate 3 in such a way that they are invisible from the outside. As a result, they are optimally protected against contamination and damage.

The locking elements serve to prevent the tray 4 from automatically extending relative to the support plate 3, which could occur if the tray 4 is not exactly horizontally aligned relative to the support plate 3. An adaptation of the curve geometry of the rolling element running grooves would also be conceivable.

As in the Figures 1 to 3 is also shown, the latching elements are arranged such that they engage one another at least in the starting position of the support plate 3 on the shelf 4, and that the latching elements are also engaged when the shelf 4 is rotated by 180°.

Furthermore, according to the invention, it is possible to arrange the locking elements in such a way that the tray 4 is fixed in any predefinable open position relative to the support plate 3, in particular at an opening angle of 90°, in order to facilitate loading and unloading of the tray 4 enable.

In the Figures 10 to 13 a further variant embodiment is shown, in which the spherical caps 36 are designed as separate components which can be clipped into receiving openings 38 in the support plate 3 . The calottes next to the in figure 10 recognizable, from the bearing surface 31 protruding calotte head protruding from the back of the calotte head spreader legs with hook-like ends, as in figure 11 is shown.

As a result, the spherical caps 36 can be inserted from the bearing surface 31 into the receiving openings 38 of the support plate 3, with the hook-like ends reaching behind the edge of the receiving opening 38 from the underside, as in FIG figure 12 is shown.

The raised edges of the beads 46 formed on the tray 4 are, as in FIGS figures 12 and 13 shown, formed ramp-like in the extension direction A of the tray 4 to the mounting receptacle 47 sloping in order to facilitate entry of the spherical caps 36 into the beads.

It is also conceivable to integrate a storage device as described above in other areas, for example in the glove compartment or trunk of a motor vehicle, in a warehouse or in cupboards such as goods displays in a supermarket, etc.

Reference List

1

shelf

2

bottom plate

3

support plate

31

storage area

32

rolling element groove

33

guide groove

34

cam

341

cam leg

342

cam leg

35

slot

36

cap

37

bottom

38

intake opening

4

filing

41

storage space

42

storage area

44

rolling element groove

45

cones

46

bead

47

mounting bracket

48

ramp

5

baseplate bracket

6

rolling elements

7

anti-tilt element

8th

fixing device

9

rolling element cage

11

Furniture

12

household appliance

13

body

14

body

A

pull direction

Claims (11)

1. Storage shelf (1) for a piece of furniture (11) or household appliance (12), comprising

   - a support plate (3) arranged stationarily on a carcass (13, 14) of the piece of furniture (11) or household appliance (12),

   - a storage tray (4) which is positively guided relative to the support plate (3) and can simultaneously be moved both rotationally and translationally in a pull-out direction (A),
   characterized in that

   - mutually facing bearing surfaces (31, 42) of the support plate (3) and of the storage tray (4) have respective at least predominantly closed, all-around rolling element grooves (32, 44) in which rolling elements (6) are guided,

   - whereby the bearing surfaces (31, 42) of the support plate (3) and of the storage tray (4) have respective shaped elements facing the respective other bearing surface (42, 31), which, for the movement of the storage tray (4) relative to the support plate (3) from an initial position in the direction of a loading and unloading position, force an at least proportionate rotational movement of the storage tray (4)

   - whereby shaped elements formed as pins (45) project from one of the bearing surfaces (42, 31), which shaped elements are positioned in the initial position of the tray (4) in the pull-out direction (A) behind shaped elements formed as cams (34), which project from the other of the bearing surfaces (31, 42).
2. Storage shelf (1) according to claim 1, characterized in that the cams (34) are designed with two legs, wherein a first cam leg (341) is oriented in the plane of the first bearing surface (31) at an angle to a second cam leg (342).
3. Storage shelf (1) according to one of the preceding claims, characterized in that shaped elements designed as pins (45) project from one of the bearing surfaces (42, 31), which shaped elements, in the initial position of the storage tray (4), project into respective shaped elements designed as guide grooves (33), which are formed in the other of the bearing surfaces (31, 42).
4. Storage shelf (1) according to one of the preceding claims, characterized in that the bearing surfaces (31, 42) of the support plate (3) and the storage tray (4) have respective latching elements facing the respective other bearing surface (42, 31), which latching elements engage in one another in a predefined position, in particular in the initial position of the support plate (3) and the storage tray (4).
5. Storage shelf (1) according to claim 4, characterized in that the latching elements also engage in one another in the initial position of the support plate (3) and the storage tray (4) and when the support plate (3) is rotated through 180°.
6. Storage shelf (1) according to claim 4 or 5, characterized in that the latching elements of the first of the bearing surfaces (31, 42) are formed as spherical caps (36) projecting therefrom in the direction of the second of the bearing surfaces (42, 31), and the latching elements of the second of the bearing surfaces (42, 31) are formed as beads (46).
7. Storage shelf (1) according to one of the preceding claims, characterized in that the latching elements are arranged between the bearing surfaces (42, 31) invisibly from the outside.
8. Storage shelf (1) according to one of the preceding claims, characterized in that the support plate (3) is detachably held by means of at least one adapter on the carcass (13, 14) of the piece of furniture (11) or household appliance (12).
9. Storage shelf (1) according to claim 8, characterized in that the storage shelf (1) has a base plate (2) which can be fixed to the carcass (13, 14) of the piece of furniture (11) or household appliance (12) by means of the adapter designed as a base plate holder (5), wherein the support plate (3) rests on the base plate (2).
10. Piece of furniture (11) having a carcass (13) with at least one storage shelf (1) according to one of claims 1 to 9.
11. Household appliance (12), in particular refrigerator or freezer, having a carcass (14) with at least one storage shelf (1) according to one of claims 1 to 9.

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