EP2790549B1 - Side-rail arrangement - Google Patents

Description

The present invention relates to a side rail according to the preamble of claim 1.

The EP 1 158 185 discloses a quick fastener for fixing a guide rail of a pullout guide on a side rail. The quick-fastening element has an upper holding section, which has a V-shaped receptacle and can be applied around an upper bar. Furthermore, a second locking receptacle is provided, on which a lower rod can be clamped. This quick fastener has generally been proven for its sturdy attachment and ease of installation. However, the fastener can be used only with a specific rod design - thickness and distance of the rods in the Z direction.

The DE 10 2009 034 967 discloses the fixing of a pullout guide via a front spring clip and a rear spring clip. The front spring clip has a U-shaped receptacle on which two rods can be fixed in a latching manner. A disadvantage of this fastening system is that two different fastening elements are used per guide rail. In addition, the front spring clip can only be used for a predetermined side rail, in which the distance between two rods in the Z direction and the diameter of the rods are known. An insert for different side rails is not provided.

The DE 10 2010 021 283 discloses a fastener for a pullout guide having a first hook part and a second hook part. Both hook parts are each releasably attachable to a guide portion of a respective bar. In this case, the fastening part is fixed in the Z direction only by a lateral tongue of the first hook part, which engages under a fastening section of the rod. A disadvantage of this invention is that the fastening part can be used only at a predetermined side rails, in which the distance of the rods in the Z direction and the thickness of the rods are known. Otherwise, it can not be fixed or there is a risk that the pullout guide is not guided safely because the hooks have a play in the Y and / or Z direction. Both hook parts are not clamped, the determination is made by a pivoting hook. Also, the fastening part according to the invention in particular only for the rear attachment of Pull-out guide provided. For in particular the front attachment of the guide rail, a fastening part according to the invention is provided with a separate pivotable hook. Again, two different fasteners are used per guide rail.

It is therefore the object of the present invention to provide a side rail with at least one fastening element for arranging a device, which in a simple manner fixes on two rods, which are substantially parallel in the X direction and form a distance from one another in the Z direction. allows and flexibly mounted on different rod designs.

This object is achieved with a side rail with the features of claim 1.

According to the invention, a side rail for household appliances, in particular a baking oven, is provided, with at least one pair of bars substantially parallel in the X direction, which form a distance from each other in the Z direction, in which two identical fixing elements are fixed to two bars where a guide rail a pullout guide is set. Furthermore, in each case two identical fastening elements can be used for fixing the guide rails on both sides of the side rail. As a result, the fastener is very universally applicable and there are no different fasteners required for the various fixing points on the side rails. In the case of each side rail, in the mounted position, the first bar is fixed in the Y direction by clamping, and the second bar is fixed in the X, Y and Z directions.

The fastener includes a first receptacle locatable on a first rod and a second receptacle locatable on a second rod, the second receptacle being configured as a locator bearing for receiving a second rod in various thicknesses, and the first receptacle is designed as a floating bearing to compensate for different designs, distances and / or different thicknesses of the two rods.

Under a fixed bearing is understood in this document a bearing point, which has no degrees of freedom in the effective direction of gravity. The fastener thus comes at the periphery of the rod at several points at least tangentially to the plant. The contact points are in the area opposite to the effective direction of gravity. It is therefore not necessary that the Bar is formed to form a fixed bearing in the sense of this document on the entire circumference of the fastener. An enclosure of at least one third of the rod is sufficient to form a corresponding fixed bearing. It may, for example, form a substantially circular segment-shaped section on the fastening element.

To secure the rod in the fastening element, an elastically deformable section may be provided in the region of the fastening element facing the effective direction of gravity. After insertion of the rod into the fastening element, this section springs back as far back into its starting position that the smallest rod diameter provided for this fastening element can no longer pass through the opening.

The term movable bearing describes in this document an arrangement that another rod is fixed only by clamping transversely to the effective direction of gravity. In the direction of gravity, it is possible to vary the position of the other rod in the dimensions of the resilient elements. This results in a radial displacement of the rod relative to the fastening element, but no axial displaceability of the rod relative to the fastening element.

From this inventive combination of a fixed and floating bearing results in a very high flexibility for attachment, for example, fittings on substantially parallel bars. These rods may be geometrically different in diameter, thickness and shape. Also, "impurities", such as subsidence in the course of the rod, are overlapped by the fastener of the invention.

Preferably, the fastener comprises a first receptacle having at least one clamping portion which exerts a main force on the first rod in the Y direction, which is designed so that a minimum clamping force in Y regardless of the thickness and position in the Z direction of the first rod Direction acts on the first rod. In any case, the minimum clamping force is so great that the first receptacle in the mounted state in the Y direction is securely fixed to the first bar, irrespective of the loading situation of the device. In this case, the effective on the first rod resulting clamping force is dependent on the thickness of the first rod in the Y direction at the at least one clamping portion. In contrast, the at least one clamping section exercises In the Z-direction in relation to the main force in Y-direction almost no force on the first rod. This means that the first rod is not fixed in either the X or Z direction by the first shot. The second receptacle of the fastening element has at least one substantially U-shaped or preferably V-shaped holding section and preferably at least one securing against lifting of the second bar in the second receptacle.

By using two identical fastening elements, a very flexible attachment of a pullout guide in or on a household appliance can be realized. In this case, the fastening element can be used to compensate for different rod designs, thicknesses and distances in the Z direction to each other. By the at least one clamping portion is ensured that the first rod is always fixed in the assembled state in the Y direction by clamping. The rods may have a round, oval, angular or other cross section or be formed as strips. As a result of the first and second receptacles designed according to the invention, the fastening element can be securely fixed to all bar thicknesses and bar spacings in the Z-direction on the market. Known bar thicknesses are approximately between two and ten, in particular between three and six millimeters. The distance in the Z direction of the bars to each other can vary. In general, the distances are approximately between ten and fifty millimeters. In this case, the at least one clamping section of the first receptacle is advantageously designed so that it covers the entire distance in the Z direction. As a result, the fastening element has a large tolerance range with regard to the distance between the two rods. This allows the use of the fastening element according to the invention on different side rails.

In the X direction, the direction is horizontal, understood in the longitudinal direction of the rods. Accordingly, the Y direction is the horizontal direction transverse to the longitudinal extent of the bars. The Z direction is the vertical direction.

Under substantially parallel in the X direction bars is understood that the rods to each other have a maximum deviation of +/- 10 ° to the parallel or over the length of at least one rod areas with special geometries, such as so-called rod subsidence may possess.

According to a further embodiment, the first receptacle has at least two wall sections which are parallel in the Z direction and which delimit the first receptacle in the Y direction. At least one wall section is provided with at least one clamping section. In this case, the at least one clamping section can be formed by at least one spring element, in particular by a resilient web, a leaf spring or the like, which can protrude from a wall section in the Y direction. A combination of different spring elements is possible. Alternatively, several clamping areas or spring elements may be present. Advantageously, an insertion be formed on the underside of at least one spring element.

The two wall sections of the first receptacle can be arranged offset in the X direction of the first rod. For a stable fixation of the fastening element, at least two wall sections may be provided on one side of the first rod on the first receptacle, so that twisting of the fastening element about a vertical axis is reliably avoided.

The second receptacle has on the U-shaped or preferably V-shaped holding portion preferably a preferably integrally formed with a leg protruding handle portion for bending the U-shaped or preferably V-shaped holding portion. As a result, the mounting of the fastener is facilitated. In addition, the security against the lifting of the second rod may be formed bendable and have a run-on slope for insertion of the second rod into the second receptacle. Due to the bendable design of the U-shaped or preferably V-shaped holding portion and the fuse second rods with different designs and / or thicknesses can be added. The V-shaped holding section ensures that the second bar, regardless of its geometry, always bears against the holding section at at least two points.

The second receptacle may have a continuous, for example, the entire length of the Befestigungselemetes corresponding handle portion. As a result, a higher rigidity of the holding section is achieved. Alternatively, the second receptacle may also have two or more holding sections with two or more legs and one or more recesses without interconnected grip sections, which are preferably located in the region of the at least one fuse. This embodiment may, for example be used on rods with a smaller thickness. For partial bar sinkers, where the side rails have areas in which the two Z-spaced bars have non-parallel alignment in the X direction with each other, it is sufficient if one leg of the holding section comprises the second bar to permit loosening To prevent pullout guidance. In this area, the second rod may have stiffeners in the Z direction. These can form an additional fixation of the fastening element on the second rod.

The fastening element may have in the region of the second receptacle on at least one outer side a recess for fixing the fastening element to an angled end region of the second rod of the side grid. In this case, the recess may be particularly advantageous on each of the two outer sides and, for example, have the shape of a circular section.

For a simple production of the fastening element this can be made of a stamped and bent metal sheet, preferably in one piece. In order to increase the stability of the fastening element, the element may have at least one stiffening bead, a profiling or the like, for example in the region of a wall section.

Figuren 1A und 1B

zwei Ansichten eines Seitengitters mit erfindungsgemäßen Befestigungselementen in der montierten Position;

Figur 2

eine perspektivische Ansicht des Seitengitters der Figur 1 im hinteren Bereich;

Figur 3

eine perspektivische Ansicht des Seitengitters der Figur 1 im vorderen Bereich;

Figuren 4A und 4B

zwei Ansichten des Seitengitters der Figur 1 im Bereich eines Befestigungselementes;

Figuren 5 und 6

zwei Ansichten des Seitengitters der Figur 1 bei der Montage eines Befestigungselementes;

Figur 7

eine perspektivische Ansicht eines erfindungsgemäßen Befestigungselementes,

Figuren 8A bis 8F

mehrere Ansichten des Befestigungselementes der Figur 7; und

Figuren 9A bis 9C

mehrere Ansichten eines alternativen erfindungsgemäßen Befestigungselementes.

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

Figures 1A and 1B

two views of a side rail with fasteners according to the invention in the mounted position;

FIG. 2

a perspective view of the side rail of the FIG. 1 in the back area;

FIG. 3

a perspective view of the side rail of the FIG. 1 in the front area;

FIGS. 4A and 4B

two views of the side lattice of the FIG. 1 in the region of a fastening element;

FIGS. 5 and 6

two views of the side lattice of the FIG. 1 during assembly of a fastener;

FIG. 7

a perspective view of a fastener according to the invention,

FIGS. 8A to 8F

several views of the fastener of the FIG. 7 ; and

FIGS. 9A to 9C

several views of an alternative fastening element according to the invention.

In the illustrated embodiment, the first rod 7 is shown as a lower rod and the second rod 6 as the upper rod 6, wherein the first rod 7 with the lower first receptacle 11 and the second rod 6 with the upper second receptacle 20 is engaged. It is also within the scope of the invention that the first rod 7 at the top and the second rod 6 or the first receptacle 11 at the top and the second receptacle 20 at the bottom are arranged. The directional statements relate only to the embodiment explained below and are not intended to be limiting for the invention.

For a later explanation, a horizontal direction perpendicular to the longitudinal direction of the bars 6 and 7 should be the Y direction, the longitudinal direction of the bars 6 and 7 should be the X direction, and the vertical direction Z direction, as in FIG Figure 1A is shown.

According to the invention, the fastening element 10, 10 'comprises a first receptacle 11, which has at least one clamping section 13 which exerts a main force F on the first bar 7, 7' in the Y-direction, which is designed so that, irrespective of the thickness and position in the Z direction of the first rod 7, 7 ', a minimum clamping force F _min acts in the Y direction on the first rod 7, 7'. The minimum clamping force F _min is in any case so large that the first receptacle 11 in the mounted state in the Y direction is securely fixed to the first bar 7, 7 'irrespective of the loading situation of the device. In this case, the effective on the first rod 7, 7 'resulting clamping force F _res In contrast, the at least one clamping section 13 exerts almost no force on the first rod 7 in the Z direction in relation to the main force F in the Y direction , 7 'off. This means that the first rod 7, 7 'is fixed by the first receptacle 11 neither in the X nor in the Z direction.

A food support 1 is slidably mounted in an oven and is for this purpose on opposite sides with an edge 2 on a pullout guide 3. Each drawer guide 3 comprises a movable running rail 4 and a fixed guide rail 5. The guide rail 5 is fixed on a side rail 9 via fastening elements 10. Each side rail 9 comprises two vertical posts 8 and pairs of rods 6 and 7, wherein each fastening element 10 is fixed to a first rod 7 and a second rod 6.

The guide rail 5 is fixed to the side rail 9 via a front fastening element 10 and a rear fastening element 10. The two fastening elements 10 are of identical design and detachably arranged on the rods 6 and 7.

In FIG. 1B the rear fastening element 10 is arranged in the region of a partial rod lowering 28. The fastening element 10 has two holding sections 32 with a central recess 30 in the region of the second receptacle 20. In this example, only one holding section 32 comprises the second bar 6. The other, in this case front, holding section 32 is arranged in the region of the partial bar lowering 28 , In this example, the second rod 6 has stiffeners 29 in front of and behind the partial rod lowering 28 in the Z direction.

As in FIG. 3 is shown, the fastening element 10 comprises a slot-shaped first receptacle 11, through which the first rod 7 is performed. The first receptacle 11 is formed by an outer wall section 12 and two inner wall sections 14. Formed on the outer wall section 12 is a clamping section 13 protruding toward the first bar 7 in the Y direction in the form of a spring bar with an insertion bevel 31, which bears in a clamping manner on the bar 7 in the Y direction. The first rod 7 is not fixed / bounded in the Z direction by the first receptacle (11).

Also in FIG. 3 It is shown that the fastening element 10 in the region of the second receptacle 20 at the angled end portion 27 of the second rod 6 adjacent outer side has a recess 26 for positioning the fastener to the angled end portion 27.

In the FIGS. 4A and 4B the fastener 10 is shown in the assembled position. On the fastening element 10, the guide rail 5 can be fixed by mechanical means or by welding or gluing. At the lower first receptacle 11 of the fastening element 10 of the clamping portion 13 is in the form of a spring bar on one side of the lower rod 7, which is held in a form-fitting manner between the wall portions 14 and the clamping portion 13 on the wall portion 12. Furthermore, the upper second rod 6 is held in an upper second receptacle 20 of the fastening element 10, which has a V-shaped holding portion 32 with a first leg 21 and a second leg 22. The obliquely spreading legs 21 and 22 are in the upper region of the second rod 6 at. At the bottom of the second rod 6, a fuse is formed, which secures the second rod 6 against falling out of the receptacle 20 and prevents lifting of the fastener 10.

In FIG. 5 the fastener 10 is shown during assembly. First, the first rod 7 is inserted into the slot-shaped first receptacle 11 of the fastening element 10. Subsequently, the obliquely oriented fastener 10 is pivoted about the axis of the first rod 7, wherein the second rod 6 between a handle portion 23 which is integrally formed with the leg 22, and a run-on slope 25 which protrudes from the fuse 24, in the receptacle 20 is introduced. Subsequently, the second rod 6 is locked in the second receptacle 20, as shown in FIG FIG. 6 and 4B is shown. If the second rod 6 is still held with play in the second receptacle 20, the handle portion 23 can be pressed down to press the legs 21 and 22 against the second rod 6. Additionally or alternatively, the run-on slope 25 can be bent on the fuse 24 upwards, so that the web 24 rests against the underside of the rod 6 and the rod 6 is held in a form-fitting manner in the receptacle 20 substantially. Alternatively, the run-on slope 25 on the fuse 24 can be designed to be bent upwards in a constructive manner. It may also be advantageous if the fuse 24 is designed to ascend inclined to the second rod 6.

In FIG. 6 It can be seen that the fastener 10 can be mounted even at a different distance between the two rods 6, 7 and 7 ', because as indicated by the double arrow H, the first rod 7, 7' in the Z direction in different positions within the slot-shaped receptacle 11 are arranged. As a result, the fastening element 10 can be used flexibly for differently shaped and / or shaped side rails 9.

In FIG. 6 two identical fasteners 10 are mounted on two different side rails 9, 9 'which differ in the position of the rods 7 and 7', in the form that the two rods 6, 7, 7 'of the side rails 9, 9' in Z- Direction different distances to each other. Both in the side rail 9 and the side rail 9 ', the first receptacle 11 is fixed to the first rod 7, 7' in the Y direction by clamping. As a result, the fastening element 10 can be used flexibly for differently shaped and / or shaped side rails 9, 9 '.

In the FIGS. 7 and 8A to 8F an inventive fastener 10 is shown in detail. The fastener 10 is made of a stamped and bent sheet metal, whereby a production of plastic or other materials is possible.

The first receptacle 11 for inserting the first rod 7 is formed open at the bottom and formed by producing a recess 15 in which a Z-direction extending wall portion 12 is connected via a step 16 with the remaining fastener 10. On the wall portion 12, a c-shaped recess 18 is formed, which surrounds the clamping portion 13 in the form of a spring bar. The clamping portion 13 is formed bendable and connected via a bridge portion 19 with the wall portion 12. The clamping portion 13 has a contact strip for engagement with the first rod. 7

On the opposite side of the receptacle 11, two spaced-apart wall sections 14 are formed, so that pivotal movements of the fastening element 10 about an axis in the Z direction are avoided. On the wall section 14, two stiffening beads 33 are formed, which increase the stability of the fastening element 10. Furthermore, a bead 17 is formed in the region of the step 16, which ensures a higher stability of the wall section 12.

On the fastening element 10, a second receptacle 20 for inserting the second rod 6 is further formed. The receptacle 20 is formed by two V-shaped holding portions 32 which comprise two legs 21 and 22 and can be applied to an upper side of the rod. Between the two receptacles 20 with the legs 21 and 22, a fuse 24 is formed with a protruding chamfer 25. The receptacle 20 and the fuse 24 are arranged offset in the X direction, similar to the wall portion 12 to the wall portions 14th

In the FIGS. 9A to 9C an alternative embodiment of the fastener 10 'according to the invention is shown in detail. In this embodiment, the fastener 10 'has a second receptacle 20' for insertion of the second rod 6, in which a handle portion 23 'is made continuous.

In the illustrated embodiment, the second rod 6 is held substantially positive fit to the second receptacles 20, 20 'of the fastener 10, 10', while the first rod 7, 7 'fixed only by clamping in the Y direction and not fixed in the Z direction is. Of course, it is also possible to fix the first rod 7 to a corresponding second receptacle 20, 20 'and to hold the second rod 6 displaceable in the Z direction on the fastening element 10, 10'.

In addition, in the illustrated embodiment, the wall portions 12 and 14 and the legs 21 and 22 are arranged offset in relation to the fuse 24 in the X direction. Of course, it is also possible to arrange the wall sections 12 and 14 and the legs 21 and 22 and the fuse 24 directly opposite one another, that is to say without an offset in the X direction.

LIST OF REFERENCE NUMBERS

1

food support

2

edge

3

pull-out guide

4

runner

5

guide rail

6

Rod

7

Rod

7 '

Rod

8th

post

9

side rails

9 '

side rails

10

fastener

10 '

fastener

11

admission

12

wall section

13

clamping section

14

wall section

15

recess

16

step

17

Beading

18

recess

19

bridge section

20

admission

20 '

admission

21

shekel

22

leg

23

handle portion

23 '

handle portion

24

fuse

25

starting slope

26

recess

27

Angled end area

28

Staff reduction

29

stiffening

30

recess

31

chamfer

32

holding section

33

reinforcing bead

F

main power

F _min

Minimum clamping force

_Res

Resulting clamping force

H

tolerance

Claims (16)

1. A side-grid (9, 9'), especially for a baking oven with at least two bars (6, 7, 7') which are substantially parallel in the X direction and which are spaced from each other in the Z direction, whereby at least one fastening element (10, 10') is fixed to two bars (6, 7, 7') of the side-grid for arranging a pull-out guide, in or on a domestic appliance, on two bars (6, 7, 7') which are substantially parallel in the X direction and which are spaced from each other in the Z direction, comprising a first holder (11) which can be arranged on a first bar (7, 7') and a second holder (20, 20') which can be arranged on a second bar (6), whereby the second holder (20, 20') is arranged as a fixed bearing for accommodating a second bar (6) in various thicknesses, and the first holder (11) is configured as a movable bearing for compensating different designs, spacings and/or thicknesses of the two bars (6, 7, 7'), characterized in that two identical fastening elements (10, 10') are provided, on which a guide rail (5) of a pull-out guide (3) is fixed.
2. A side-grid according to claim 1, characterized in that the first holder (11) comprises at least one clamping section (13).
3. A side-grid according to claim 2, characterized in that the at least one clamping section (13) exerts a main force (F) in the Y direction on the first bar (7, 7').
4. A side-grid according to claim 3, characterized in that a minimum clamping force (F_min) acts on the first bar (7, 7') by the main force (F) in the Y direction irrespective of the thickness and position in the Z direction of the first bar (7, 7').
5. A side-grid according to claim 4, characterized in that the resulting clamping force (F_res) in the Y direction is dependent on the thickness and/or position in the Z direction of the first bar (7, 7') on the clamping section (13).
6. A side-grid according to claim 3, characterized in that the at least one clamping section (13) exerts virtually no force on the first bar (7, 7') in the Z direction in relation to the main force (F) in the Y direction.
7. A side-grid according to one or several of the preceding claims, characterized in that the first holder (11) comprises at least two substantially parallel wall sections (12, 14) which delimit the first holder in the Y direction.
8. A side-grid according to claim 7, characterized in that at least two wall sections (14) are provided on one side of the first bar (7, 7') on the first holder (11).
9. A side-grid according to claim 7 or 8, characterized in that at least one wall section (12) with at least one clamping section (13) is provided on the first holder (11).
10. A side-grid according to claim 9, characterized in that the at least one clamping section (13) is formed by a spring element, especially by a resilient web, a leaf spring or the like.
11. A side-grid according to one or several of the preceding claims, characterized in that the second holder (20, 20') comprises a substantially U-shaped or V-shaped holding section (32, 32').
12. A side-grid according to claim 11, characterized in that the second holder (20) comprises on the U-shaped or V-shaped holding section (32, 32') a protruding handle section (23, 23') for bending the U-shaped or V-shaped holding section (32, 32').
13. A side-grid according to one or several of the preceding claims, characterized in that the second holder (20, 20') comprises a securing means (24) against lifting-off from the second bar (6).
14. A side-grid according to claim 13, characterized in that the securing means (24) is flexibly arranged and comprises a guide bevel (25) for inserting the second bar (6) into the second holder (20, 20').
15. A side-grid according to one or several of the preceding claims, characterized in that the fastening element (10, 10') is made of a punched and bent sheet metal.
16. A side-grid according to one or several of the preceding claims, characterized in that the second holder (20, 20') comprises on at least one exterior side a recess (26) for positioning the fastening element (10, 10') on an end region (27) of the second bar (6) which is bent off in the Y direction.

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