WO2013087375A1

WO2013087375A1 - Fastening element and side-rail arrangement

Info

Publication number: WO2013087375A1
Application number: PCT/EP2012/073143
Authority: WO
Inventors: Friedrich Meyer; Edgar FROHBIETER; Matthias KUNSCH
Original assignee: Paul Hettich Gmbh & Co. Kg
Priority date: 2011-12-12
Filing date: 2012-11-21
Publication date: 2013-06-20
Also published as: DE102011056303A1

Abstract

A fastening element (10, 10') for fixing a component (3) on two bars (6, 7) comprises a first holder (11), on which a first bar (7) is retained such that it can be displaced between at least two wall portions (12, 14) in a direction perpendicular to the longitudinal direction of the first bar (7), and a second holder (20), on which a second bar (6) can be fixed, wherein the second holder (20) has a retaining portion and an element (24) for securing the second bar (6) in the second holder (20). It is thus possible for the fastening element (10) to be mounted on different side-rail arrangements (9) with differently sized spacings between the bars (6, 7).

Description

Fastener and side rails

The present invention relates to a fastening element for fixing a component to two bars and a side rail, in particular for a household appliance.

EP 1 158 185 discloses a quick-fastening element for fixing a guide rail of a pullout guide to a side rail. The quick-fastening element has an upper holding section, which is a V-shaped

Receiving and can be applied to an upper grid bar. Furthermore, a second latching receptacle is provided, on which a lower grid bar can be clamped. This quick-fastening element has proven itself because of the stable attachment and ease of installation. However, a tolerance adaptation to different distances between the bars and different bars is not possible.

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 grid bars 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 vertical distance between two bars and the diameter of the bars are known. An insert for different side rails is not provided.

DE 10 2010 021 283 discloses a fastening part for a pullout guide with a first hook part and a second hook part. Both hook parts are each releasably attached to a guide portion of a respective bar. The lower hook part can be secured by a pivotally mounted hook, which then engages under the bar on the underside. A disadvantage of this fastening part is that it can be used only in a predetermined side rails with a defined distance of the rods in the vertical direction. A tolerance compensation in the vertical direction or in terms of the thickness of the rods is not provided. In addition, two different fasteners should be used per guide rail, which is relatively expensive. It is therefore an object of the present invention to provide a fastening element for fixing a component, in particular a pullout guide, which enables a fixation on two spaced-apart rods in a simple manner and can be flexibly mounted on different types of bars and side grilles.

This object is achieved with a fastener with the features of claim 1. According to the invention, the fastening element comprises a first receptacle, on which a first bar is held displaceably between at least two wall sections in a direction perpendicular to the longitudinal direction of the first bar, and a second receptacle, on which a second bar can be fixed, wherein the second receptacle has a holding section and an element for securing the second rod in the second receptacle. This makes it possible to hold the first rod slidably between two wall sections, while at the second receptacle is a largely positive locking of the second rod. Thereby, the fastener can be fixed to two rods with different distances, as by the sliding bearing on the first recording tolerance compensation can take place. In addition, a certain tolerance compensation can also be done by the configuration of the second recording with regard to different diameters of the rods. This allows the use of the fastening element according to the invention on different side rails.

According to one embodiment of the invention, the second receptacle comprises a substantially u- or v-shaped holding portion and a web for securing the rod to the receptacle. As a result, an essentially positive fastening of the second rod to the second receptacle can take place.

Preferably, the first receptacle is slot-shaped and the first rod is held displaceable by at least twice its diameter in the first receptacle perpendicular to its longitudinal extent. Also, a larger tolerance range, for example when the first rod is held displaceable by more than three times its diameter in the first receptacle is possible. As a result, the fastening element has a large tolerance range with regard to the distance between the two rods. The two wall sections of the first receptacle can be arranged offset in the longitudinal 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 rod on the first receptacle, so that a rotation of the fastening element about a vertical axis is reliably avoided.

According to a further embodiment, a wall portion is provided with a spring element on the first receptacle, which can be applied by clamping to the first rod. The spring element can be formed by a bendable web which protrudes from the wall section. As a result, a certain tolerance compensation with regard to the diameter of the first rod can be obtained at the first receptacle. The length of the clamping portion in the vertical direction is preferably dimensioned larger than twice the diameter of the rod in order to move the rod along the spring element can.

The second receptacle preferably has a projecting handle portion for bending the U-shaped holding portion on the U- or V-shaped holding portion. As a result, the dismantling of the fastener is facilitated. In addition, the web can be designed to be bendable for securing the second rod and have a run-on slope for insertion of the second rod into the second receptacle. As a result, the mounting of the fastener is facilitated. Due to the bendable design of the u- or v-shaped holding section and of the web for securing the second bar, tolerances in the diameter of the second bar can be compensated.

For a simple production of the fastening element this can be made of a stamped and bent metal sheet, preferably in one piece.

According to the invention, a side rail for a household appliance, in particular for an oven, microwave or Dampfgargerät is provided in which at least one fastening element is fixed to two rods. Preferably, two identical fastening elements are provided, on which a guide rail of a pullout guide is fixed. In this case, the first rod is held displaceably in the mounted position in the vertical direction on the first receptacle in order to be able to use the fastening element flexibly with different side grids. In particular, in ovens rods for receiving food supports or fasteners for drawer guides are set directly in the muffle wall.

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

Figures 1 A and 1 B show two views of a side rail with fastening elements according to the invention in the mounted position;

Figure 2 is a perspective view of the side rail of Figure 1 in the rear region;

Figure 3 is a perspective view of the side rail of Figure 1 in the front region;

Figures 4A and 4B show two views of the side rail of Figure 1 in the region of a fastener;

Figure 5 is a view of the side rail of Figure 1 during assembly of a fastener;

Figures 6A to 6C show several views of the fastener in different mounting positions;

Figure 7 is a perspective view of an inventive

Fastener;

Figures 8A to 8F show several views of the fastener of the figure

7; and

Figure 9 is a perspective view of a modified embodiment of a fastener.

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 pull-out guide 3 comprises a movable running rail 4 and a fixed guide rail 5. At least one middle rail 35 can be provided between guide rail 5 and running rail 4, see here- to FIG. 4. The guide rail 5 is fixed to a side rail 9 via fastening elements 10. Each side rail 9 comprises two vertical posts 8 and paired bars 6 and 7, each fixing element 10 being fixed to an upper bar 6 and a lower bar 7.

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

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 fasteners 10 are identical in construction and releasably latched to the rods 6 and 7.

In Figure 1 B, the rear fastener 10 is disposed 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 bar 6 has stiffeners 29 in front of and behind the partial bar lowering 28 in the Z direction. As shown in Figure 3, the fastener 10 comprises a slot-shaped first receptacle 1 1, through which the lower rod 7 is performed. The receptacle 1 1 is formed by an outer wall portion 12 and two inner wall portions 14. Formed on the outer wall section 12 is a clamping section 13 protruding from the lower bar 7, which clampingly abuts the bar 7 in the X direction. The rod 7 is held displaceably in the vertical Z-direction in the first receptacle 1 1.

Also shown in Figure 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 Figures 4A and 4B, the fastener 10 is shown in the assembled position. On the fastening element 10, the guide rail 5 can be fixed in a force, shape or material fit by mechanical means or by welding or gluing. At the lower first receptacle 1 1 of the fastening element 10 of the clamping portion 13 is located on one side of the 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 a second receptacle 20 of the fastening element 10, which has a u- or v-shaped holding portion with a first leg 21 and a second leg 22. The obliquely spreading legs 21 and 22 are in the upper region of the rod 6 at. At the bottom of the rod 6, a web 24 is formed, which secures the rod 6 against falling out of the receptacle 20 and prevents lifting of the fastener 10. The second receptacle 20 can hold the rod 6 positively and thus form a kind of fixed bearing in the Z direction and X direction. FIG. 1B shows a section along the line BB in FIG. 1A.

In Figure 5, the fastener 10 is shown during assembly. First, the lower first rod 7 is inserted into the slot-shaped receptacle 1 1 of the fastening element 10. Subsequently, the obliquely oriented fastening element 10 is pivoted about the axis of the rod 7, wherein the 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 web 24, in the second receptacle 20th is introduced. Subsequently, the rod 6 is locked in the second receptacle 20, as shown in Figures 6 and 4B. If the rod 6 is still held with play in the receptacle 20, the handle portion 23 can be pressed down to press the legs 21 and 22 against the rod 6. Additionally or alternatively, the run-on slope 25 can be bent at the web 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.

In FIGS. 6A to 6C, it can be seen that the fastening element 10 can also be mounted at a different distance between the two bars 6 and 7, since, as the double arrow H indicates in the enlarged view of FIG. 6C, the lower bar 7 can be mounted be arranged in a larger tolerance range within the slot-shaped receptacle 1 1 in the Z direction. In Figure 6B, the fastener is mounted on a side rail with a smaller distance between the upper rod 6 and the lower rod 7, so that the lower rod 7 in the receptacle 1 1 is arranged correspondingly higher than in Figure 6A. In addition, due to the flexible design of the clamping portion 13 in the X direction rods 7 are held with different thicknesses on the receptacle 1 1. The arrows D in FIG. 6C indicate this variability. As a result, the fastening element 10 can be used flexibly for different side rails 9.

In Figures 7 and 8A to 8F, the 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 1 1 for insertion of the lower rod 7 is formed open at the bottom and formed by making a recess 15 in which a vertical wall portion 12 is connected via a step 16 with the rest of the fastener 10. On the vertical wall portion 12, a c-shaped recess 18 is formed, which surrounds the clamping portion 13. 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 contact with the rod 7, which is longer than twice

Diameter of the rod 7, so that the rod 7 can be moved along the clamping portion 13.

On the opposite side of the receptacle 1 1 two spaced-apart wall sections 14 are formed so that pivotal movements of the fastener 10 are avoided about a vertical axis. At the wall portion 14 beads or other profiles can be provided which increase the stability of the fastener 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, an upper receptacle 20 for inserting the upper rod 6 is further formed. The receptacle 20 is formed by two u- or v-shaped holding portions, 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 web 24 is formed with a protruding chamfer 25. The receptacle 20 and the web 24 are offset in the longitudinal direction of the rod 6, similar to the wall portion 12 to the wall portions 14th FIG. 9 shows an alternative embodiment of the fastening element 10 'according to the invention. The fastening element 10 'is formed like the first embodiment, except for a connecting web 34, which connects the two handle portions 23 to the second receptacle 20 with each other. This increases the stability of the second receptacle 20 and prevents the rear and front portions of the receptacle 20 from being of a different size. In the illustrated embodiment, the upper rod 6 is held substantially positive fit to the receptacles 20 of the fastener 10, while the lower rod 7 is slidably supported in the vertical direction on the receptacle 1 1. Der obere Stab 7 ist in der Aufnahme 1 in dem Gehäuse 1 festgehalten. Of course, it is also possible to fix the lower rod 7 to a corresponding receptacle 20 and to hold the upper rod 6 displaceably on the fastening element 10 in the vertical direction.

In addition, in the illustrated embodiment, the wall portions 12 and 14 and the legs 21 and 22 in relation to the web 24 in the longitudinal direction of the rods 6 and 7 are arranged offset. It is of course also possible to arrange the wall sections 12 and 14 as well as the legs 21 and 22 and the web 24 directly opposite one another, that is to say without an offset in the longitudinal direction of the bars 6 and 7.

The fastening elements 10, 10 'according to the invention are also suitable for fixing to arrangements of three bars 6, 7, 36, as shown in FIG. 1B.

Bread sheet

edge

pull-out guide

runner

guide rail

Rod

post

side rails

Befestigungseiement

admission

wall section

clamping section

wall section

recess

step

Beading

recess

bridge section

admission

leg

handle portion

web

starting slope

recess

Angled end area

Staff reduction

stiffening

recess

chamfer

holding section

reinforcing bead

connecting portion

middle rail

Rod Tolerance range Tolerance range

Claims

claims

1 . Fastening element (10, 10 ') for fixing a component (3) to two rods (6, 7), with a first receptacle (1 1), on which a first rod (7) between at least two wall sections (12, 14) in a direction perpendicular to the longitudinal direction of the first rod (7) is slidably held, and a second receptacle (20) on which a second rod (6) is fixable, wherein the second receptacle (20) has a holding portion and an element (24) for Securing the second rod (6) in the second receptacle (20).

2. Fastening element according to claim 1, characterized in that the second receptacle (20) is substantially U-shaped and has a web (24) for securing the second rod (6) in the second receptacle (20).

3. Fastening element according to claim 1 or 2, characterized in that the first receptacle (1 1) is slot-shaped and the first rod (7) is slidably held by at least twice its diameter in the first receptacle (1 1).

4. Fastening element according to one of claims 1 to 3, characterized in that the at least two wall sections (12, 14) of the first receptacle (1 1) are arranged offset in the longitudinal direction of the first rod (7).

5. Fastening element according to claim 4, characterized in that on one side of the rod (7) on the first receptacle (1 1) at least two wall sections (14) are provided.

6. Fastening element according to one of the preceding claims, characterized in that on the first receptacle (1 1) a wall portion (12) with a spring element (13) is provided, which is clamped to the first rod (7) can be applied.

7. Fastening element according to claim 6, characterized in that the spring element (13) is formed by a bendable web which protrudes from the wall portion (12).

8. Fastening element according to one of the preceding claims, characterized in that the second receptacle (20) on the U-shaped holding portion has a protruding handle portion (23) for bending the U-shaped holding portion.

9. Fastening element according to one of the preceding claims, characterized in that the web (24) for securing the second rod (6) is bendable and has a run-on slope for insertion of the second rod (6) in the second receptacle (20).

10. Fastening element according to one of the preceding claims, characterized in that the fastening element (10) is made of a stamped and bent metal sheet.

1 1. Side rails (9), in particular for a household appliance, characterized in that at least one fastening element (10) on two bars (6, 7) of the side rail is fixed.

12, side rails according to claim 1 1, characterized in that two fastening elements (10) are provided, on which a guide rail (5) of a pullout guide (3) is fixed.

13, side rail according to claim 1 1 or 12, characterized in that the first rod (7) in the mounted position in the vertical direction is slidably held in the first receptacle (1 1).