WO2013050279A1

WO2013050279A1 - Pullout system and household appliance

Info

Publication number: WO2013050279A1
Application number: PCT/EP2012/068940
Authority: WO
Inventors: Daniel Reidt; Edgar Frobieter
Original assignee: Paul Hettich Gmbh & Co. Kg
Priority date: 2011-10-04
Filing date: 2012-09-26
Publication date: 2013-04-11
Also published as: DE102011056698B4; DE102011056698A1

Abstract

A pullout system, particularly for household appliances, comprises pullout guides (5) separated from one another, each fixed by means of a stationary guide rail (6) to a main body or side grid (3), and each having a runner rail (8) movably mounted on the guide rail (6) or a center rail (7), the movement of the two runner rails (8) being synchronized via a traverse (10, 10', 20, 20', 20", 30, 30', 30"), directly or indirectly arranged on a respective runner rail (8) on opposing sides. By this means, advancing and retraction of only one runner rail (8) is prevented, which simplifies handling when placing objects on the runner rails (8).

Description

Pull-out system and household appliance

The present invention relates to a drawer system, in particular for household appliances, with two spaced-apart drawer guides, each fixed to a stationary guide rail on a carcass or a side rail, and each having a run on the guide rail or at least one middle rail track rail, and a household appliance ,

There are ovens in which food supports are held on opposite sides on pullout guides to allow easy insertion and removal of the food support. It may happen that after lifting the food support the drawer guides are extended differently far, so that the rails are arranged offset. The user then has to pull out both rails approximately equally far, for example in a maximum extended position, in order then to be able to place the food support, such as a baking tray, neatly. The handling of such an extraction system is therefore relatively complex.

It is therefore an object of the present invention to provide a drawer system in which the handling is simplified by synchronously running rails in a simple manner.

This object is achieved with a pull-out system with the features of claim 1.

According to the invention, an extension system is provided, in which the movement of the two rails is synchronized via a traverse, which is arranged directly or indirectly on opposite sides on a running rail, in particular is fixed. As a result, a synchronous movement of the two rails is ensured without complex synchronization mechanisms having to be used, since the cross member is preferably arranged only at the opposite ends on the running rail and thus transmits a movement of one running rail to the other. For a simple mounting of the traverse, this can be plugged onto a fastener on each rail. The fastening means may be formed by a pin, a recess or a web which protrudes from the running rail. The fastening means is preferably designed as a stop for a food support.

According to one embodiment of the invention, the traverse is arranged at a rear end of the running rail. This ensures that access is not impeded with several pull-outs, especially when the pull-out guides and the cross-piece are mounted on an oven. The synchronous guidance of the rails can of course also be achieved via a traverse in the front area.

For a stable configuration of the traverse, this is preferably designed as a metallic tube or metallic rod. As a result, the traverse has a high temperature resistance and can be used for ovens or other household appliances. Also, ceramic materials are conceivable for achieving a high temperature resistance. In order to avoid a relative movement of the two rails to each other, the cross member is secured against pivoting relative to each track. For this purpose, the traverse may have parallel to the running rail aligned holding webs which rest against the running rail and prevent rotation of the crossbar relative to the running rail. The retaining webs can be positively, positively or materially connected to the crossbar, for example, welded or glued to the crossbar. Alternatively, the holding webs may also be formed integrally from the traverse. Preferably, the holding webs are on an outer side of the running rail, so that a stable support is ensured and the usable space between the drawer guides is not reduced. Alternatively, the retaining webs can also come to rest on the inside of the pullout guide.

In accordance with adapted width / shape and length of the retaining bars these can take over as a double function or additional function in a simple manner in inserted as in solid rail position respectively at the rear and front vertical bar a locking function against inadvertent insertion or extension. For a simple production of the synchronization, the traverse may be formed as a tube whose ends are bent angularly, each end being attached to a bolt on a running rail. If the bolt has a contour deviating from the circular cross-section, the traverse formed as a tube is held against rotation on the bolt. In addition, the ends of the traverse can also be clamped to the bolt, pin, web or an opening in the track.

According to a further embodiment of the invention, the traverse on opposite ends on a web-shaped end portion which is at least partially adapted to the outer contour of the respective track rail. The web-shaped end portion may be formed by a band-shaped bent portion, which surrounds the running rail at least partially. Preferably, the end portions are formed encompassing, so that the running rail on the inside and / or the outside abut contact surfaces of the end portion. Further, in the end portions openings can be recessed, which are penetrated by a pin on the running rail, so that an easy assembly is possible. If the traverse is designed to be adjustable in length, tolerances in the distance between the two pullout guides can be easily compensated, but also be compensated by the radial clearance of the rail and this is additionally restricted advantageous. For this purpose, mechanical adjustment can be provided medium, for example, a threaded position, or a telescopic with two intermeshing pipe or rod parts. A width compensation depending on the installation situation or the installation width in the household appliance can also be made. In addition, the Traverse may have fastening means by means of which the traverse is fixed at the end clamped on a running rail in order to increase the stability of the guide.

The pull-out system according to the invention is preferably used in a household appliance, such as an oven. Then the pullout guides can be fixed to a side rail of the oven. But other applications are possible, for example for Dampfgargeräte, microwaves or other household appliances.

The invention will be explained in more detail with reference to several embodiments with reference to the accompanying drawings. Show it: Figure 1 is a perspective view of an inventive

Extension system on an oven; Figures 2 to 4 show several views of the extension system of Figure 1 without oven;

FIG. 5 shows a perspective view of a second embodiment of an extension system on a baking oven;

Figures 6 to 8 are several views of the extension system of Figure 5 without oven; Figure 9 is a perspective view of a third embodiment of an extension system on an oven;

Figures 10 to 12 are several views of the extension system of Figure 9 without oven;

FIG. 13 shows a detailed view of an extension system modified with respect to FIG. 9;

FIGS. 14 and 15 show two views of an extension system which has been modified with respect to FIG. 9;

FIG. 16 shows a view of a further extension system on a

Oven; Figures 17 to 19 are several views of the extension system of Figure 16 without oven;

Figure 20 is a perspective view of a cross member for another extension system;

Figure 21 is a perspective view of a modified traverse another extract system; FIGS. 22A to 22C show several views of a further extension system on an oven in an open position;

Figures 23A and 23B show two views of the drawer system of Figure 22 without

Oven, and

Figures 24A and 24B are two views of the drawer system of Figure 22 in a closed position. A baking oven 1 comprises a baking oven muffle 2, in which side rails 3 are fixed in an interior space 4 on opposite side walls. At each side rail 3 at least one pullout guide 5 is fixed, which is designed as a full extension and a guide rail 6, a middle rail 7 and a running rail 8 includes. The guide rail 6 is fixed to the side rail 3, while the running rail 8 is movably held on the center rail 7, which is arranged to be movable between the guide rail 6 and the running rail 8. Of course, it is also possible to form the pullout guide 5 as a partial extension with the guide rail 6 and the running rail 8 or provide more than one middle rail 7.

At each running rail 8, a front stop 9 is provided, which is formed plate-shaped and prevents the running rail 8 can move beyond a closed position to the rear wall of the oven muffle 2. To synchronize a movement of the two rails 8, is a

Traverse 10 is provided, which is made for example of a tube made of metal, ceramic or plastic and has bent ends 1 1. The bent ends 1 1 are attached to bolts 19 which protrude at the top of the rails 8. In order to avoid pivoting of the cross member 10 relative to the rails 8, 1 1 holding webs 12 are fixed to the ends, which have an upwardly directed projection 13 which is fixed in force, positive or cohesive at the ends 1 1. Other fasteners can be used to fix the retaining webs 12. The holding webs 12 extend over a portion parallel to the rails 8 and abut on the outside thereof. The holding webs 12 may also be positively, positively or materially connected to the running rail 8. This ensures that the movement of a running rail 8 is also implemented via the traverse 10 in a movement of the running rail 8 on the opposite side. In Figures 1 to 4, the cross member 10 is bow-shaped and protrudes over the rails 8 upwards. The drawer guides 5 are fixed to the side rails 3 via brackets 15 and 16, which can be latched to a horizontal strut and / or vertical strut of the side rail 3.

A further embodiment of an extension system is shown in FIGS. 5 to 8, wherein the same components are provided with the same reference numerals. Instead of a bow-shaped upwardly projecting traverse 10 a cross-member 10 'is provided, which is designed as a straight tube and is connected at opposite ends with a sleeve 14. Each sleeve 14 is attached to an end of the running rail 8 upwardly projecting pin 19. In the embodiment shown, the bolt 19 has a cylindrical contour, so that the traverse 10 'around the bolt 19th

could swivel. However, this is prevented by the fact that the sleeve 14 is connected to a holding web 12, which is fixed to the sleeve 14 via a projection 13 in a force, form or material fit, for example by gluing or welding. The holding web 12 is aligned parallel to the running rail 8 and is applied to this, but may also be positively, positively or materially connected thereto. This prevents that the traverse 10 'pivots about the pin 19. Of course, it is also possible, instead of a cylindrical contour of the pin 19, to provide a parallelepiped or web-shaped pin which provides a rotationally fixed connection to the cross-member 10 'when a sleeve is inserted.

FIG. 9 shows an exemplary embodiment of a baking oven 1 in which, in the case of an extension system with two pull-out guides 5, a cross-member 20 is provided for the synchronization of the slide rails 8. The traverse 10 comprises a pipe section, at the opposite ends end portions 21 are inserted, as shown in Figures 10 to 12. The end portions 21 are formed by web-shaped flat portions which are formed encompassing and end have a vertical leg 22. The end portions 21 may be made of a bent metal sheet and have an opening through which a pin 19 is inserted at the top of the slide rail 8. Due to the encompassing design of the end sections 21, a relative movement of the rails 8 and a corresponding pivoting of the crossbar 20 relative to the rails 8 are avoided. the, in particular when the receiving openings off-center on the

Traverse ends are arranged.

In addition to the three-part structure described above, the cross member 20 with the associated end portions 21 may also be made in one piece, preferably from a pipe section. Here, the end portions 21 are produced by flattening the pipe ends by, for example, embossing, punching or molding. FIG. 13 shows a modified embodiment of a traverse 20 ', which is tubular and has a web-shaped end section 21'. Unlike in Figure 12, the end portion is U-shaped and includes two vertical legs 22 'which engage around the track rail 8. As a result, the stability of the guide is improved by the traverse 20 'and provides by the crank a better clearance for Gargutträger.

FIGS. 14 and 15 show a further embodiment of a traverse 20 ", which is of tubular construction and is connected on opposite sides to an end section 21". The end portion 21 "is formed angled or encompassing and comprises a vertical leg 22", which bears against the inside of the running rail 8. Also by this configuration, the crossbar 20 "can be secured against pivoting about the axis of the bolt 19. Furthermore, a detent function for the extension system can be achieved by advantageous design of the end portions 21".

In the figures 16 to 19, a further embodiment of an extension system is shown, which is mounted in the interior of a baking oven muffle 2. The movably mounted rails 8 are connected to one another via a cross member 30, which is tubular or rod-shaped and has a first end portion 31 which is angularly formed and has on its horizontal top 32 a longitudinal slot 33 aligned parallel to the longitudinal direction of the cross member 30 , On the opposite side of the cross member 30 is provided with a U-shaped end portion 34, the legs 36 engage around a running rail 8 u-shaped. At the upper horizontal portion of the end portion 34, a circular opening 35 for inserting a bolt 19, web, etc. is provided. The cross member 30 is thus secured on the side of the end portion 34 relatively stable against rotation relative to the running rail 8. On the opposite side is due to the provision of the elongated hole 33 tolerance compensation possible, so that the traverse 30 can be adapted to different distances between the rails 8. A power transmission in the extension direction by the cross member 30 is still possible because a rectangular orientation of the cross member 30 is ensured to the running rail 8 through the end portion 34. Also by this design synchronization can be achieved, as well as a locking function can be achieved.

The end sections 21, 21 ', 21 ", 31 and 34 as well as the retaining webs 12 can also assume further functions in addition to the connection of the crossbeam with the running rails 8. For example, latching means can be provided which ensure that the running rail 8 is in the retracted position Position is locked and is secured against unintentional leakage

Locking in an extended position, each on vertical bars, is possible.

FIG. 20 shows a modified embodiment of a traverse 30 ', which is produced from a flat strip-shaped material, in particular a sheet metal. The traverse 30 'comprises on opposite sides symmetrical end portions 34 which are hook-shaped and have a circular upper opening 35 at a horizontal upper portion. On the end side, a leg 36 pointing downwards is provided so that a running rail 8 can be overlapped over the U-shaped end section 34 with the outer lug resting against the guide rail 6. 21 shows a further embodiment of a crosspiece 30 ", which is made of a flat band-shaped material and has modified end portions The end portions are not hook-shaped, but comprise a stepped configuration with a vertical portion 37 and a horizontal portion 38, FIG a circular opening 39 is provided on the upper horizontal section 38, through which a pin fixed to the running rail 8 can be pushed through.

FIGS. 22A to 22C show another extracting system which is mounted in a baking oven 1. For this purpose, two side rails 3 are fixed on opposite sides of a baking oven muffle, on which at least one pullout guide 5 is held. Two pull-out guides 5 are connected to one another via a cross-member 10 ', wherein the cross-piece 10' identifies a sleeve 14 at each end, in which a fixed to the running rail 8 of the pullout guide 5 Spigot is inserted. A guide rail 6 of the pullout guide is fixed on the side rails 3 via brackets 16.

On the sleeve 14 of the traverse 10 'is a holding web 40 with a projection 41 force, form or material fixed, for example by gluing or

Welding. The holding web 40 comprises a portion parallel to the running rail 8, are formed on the locking projections 42 in the form of bulges, which protrude from the running rail 8. During the movement of the running rail 8, these locking projections 42 engage vertical uprights 43 of the side rail 3 or with other components which are fixed to the oven muffle 2.

In FIGS. 23A and 23B, the pull-out system of FIG. 22 without oven is shown. On opposite sides in each case a side rail 3 is provided which comprises vertical posts 43 and horizontal bars 44. On the horizontal bars 44, the pullout guides 5 are fixed, wherein the vertical posts 43 are used for locking the running rail 8 in an extended and a retracted position. As shown in the enlarged view of Figure 23B, the locking projections 42 are formed bendable, as indicated by the arrows. When driving over the vertical posts 43 thus the locking projections 42 and / or the posts 43 are slightly bent, so that the running rail 8 can lock in an extended position.

While FIGS. 23A and 23B show an extended position of the extraction system, FIGS. 24A and 24B show a retracted closed position of the drawer system of FIG. 22. The drawer slide 5 is located in the oven cavity 2. As shown in the detail view of FIG. 24B, are also at the rear end of the side rail 3 vertical posts 43, which cooperate with the locking projections 42 of the retaining web 40. As a result, the guide rail can be latched in a closed position on the side rail 3.

The locking of the running rail 8 in an extended position and / or in a closed position can also be effected by other locking means, that is not on the side rail 3. Then, corresponding locking projections on the side walls of the oven muffle 2 can be arranged. These can also be adjustable depending on the desired latching strength in the horizontal direction inwards. LIST OF REFERENCE NUMBERS

1 oven

2 oven muffle

3 side rails

4 interior

5 pullout guide

6 guide rail

7 middle rail

8 track rail

9 stop

10 traverse

10 'crossbeam

1 1 end

12 jetty

13 lead

14 sleeve

15 clip

16 bracket

19 bolts

20 traverse

20 'traverse

20 "crossbeam

21 end section

21 'end section

21 "end section

22 thighs

22 'thighs

22 "thighs

30 traverse

30 'Traverse

30 "traverse

31 end section

32 top

33 slot

34 end section

35 opening

36 thighs

37 vertical section

38 horizontal section

39 opening

40 jetty

41 advantage

42 locking projection

43 vertical posts

44 horizontal bar

Claims

claims

1 . Pull-out system, in particular for household appliances, with two spaced-apart pullout guides (5), each fixed to a stationary guide rail (6) on a carcass or a side rail (3), and one on the guide rail (6) or at least one middle rail (7) movably mounted running rail (8), characterized in that the movement of the two rails (8) via a traverse (10, 10 ', 20, 20', 20 ", 30, 30 ', 30") is synchronized , which is arranged on opposite sides respectively on a running rail (8) directly or indirectly.

2. extract system according to claim 1, characterized in that the

Traverse (10, 10 ', 20, 20', 20 ", 30, 30 ', 30") is arranged on a fastening means (19) on each running rail (8).

3. pull-out system according to claim 1 or 2, characterized in that the cross member (10, 10 ', 20, 20', 20 ", 30, 30 ', 30") at the rear end of the running rail (8) is arranged.

4. Pull-out system according to claim 2 or 3, characterized in that the fastening means (19) is formed integrally from the running rail (8) or the fastening means is positively, positively or materially fixed to the running rail (8).

5. pull-out system according to one of the preceding claims, characterized in that the cross member (10, 10 ', 20, 20', 20 ", 30, 30 ', 30") is secured against pivoting relative to at least one running rail (8) ,

6. pullout system according to one of the preceding claims, characterized in that the crossmember (10, 10 ') with parallel to the running rail (8) aligned holding webs (12) is connected, which rest against the running rail (8) and a rotation of the traverse ( 10, 10 ',) prevent relative to the running rail (8).

7. extract system according to claim 6, characterized in that the

Holding webs (12) are arranged laterally or end side of the running rail (8).

8. pull-out system according to any one of the preceding claims, characterized in that the cross member (10, 10 ') is formed by a tube or mold profile whose ends are bent angularly and attached each end to a fastening means (19) on a running rail (8) is.

9. pullout system according to one of the preceding claims, characterized in that the cross member (20, 20 ', 20 ", 30, 30', 30") at opposite ends a web-shaped end portion (21, 21 ', 21 ", 31, 34 ), which is at least partially adapted to the outer contour of the respective running rail (8).

10. extract system according to claim 9, characterized in that the

End portions (21, 21 ', 21 ", 31, 34) are formed encompassing.

1 1. Pull-out system according to claim 9 or 10, characterized in that at the end portions (31, 34) openings (33, 35) are recessed, which are penetrated by a fastening means (19) on the running rail (8).

12. Pull-out system according to one of the preceding claims, characterized in that the traverse (10, 10 ', 20, 20', 20 ", 30, 30 ', 30") is designed to be adjustable in length.

13. Pull-out system according to one of the preceding claims, characterized in that the traverse (10, 10 ', 20, 20', 20 ", 30, 30 ', 30") has fastening means, by means of which the traverse (10, 10', 20, 20 ', 20 ", 30, 30', 30") at the end is clamped to a running rail (8).

14. Pull-out system according to one of the preceding claims, characterized in that the cross member (10, 10 ', 20, 20', 20 ", 30, 30 ', 30") has latching means for fixing the extension system in the retracted and / or extended state ,

15. Pull-out system according to one of the preceding claims, characterized in that on the running rail (8) a holding web (40) with latching projections (42) is fixed, by means of which the running rail (8) in a ner retracted and / or extended position on a side rail (3) can be latched.

16. pullout system according to one of the preceding claims, characterized in that the traverse (10, 10 ', 20, 20', 20 ", 30, 30 ', 30") has means for tolerance and / or width compensation.

17. Household appliance, in particular oven (1), characterized in that mounted on the household appliance extract system according to one of the preceding claims.

18. Household appliance according to claim 16, characterized in that each pullout guide (5) is fixed to a side rail (3) in the household appliance.