EP2884870B1 - Adapter device for a drawer - Google Patents

Description

The invention relates to an adapter device which has a support leg for supporting a drawer bottom.

It is known to provide for the connection of at least one Zargenelements with a drawer bottom one or more metallic adapter devices. These adapter devices are mounted on the Zargenelement and have a support leg, which is provided with fastening claws for the attachment of the drawer bottom. The adapter devices can - according to the prior art, but also according to the invention - alternatively be itself an integral part of the Zargenelementes and serve for connection to the drawer bottom.

In the EP 1 513 429 B1 is described as an adapter device, a connecting member having a contact web and a support leg for the drawer bottom, wherein the support leg consists of two mutually height-offset leg portions. In the assembly position, the underside of the drawer bottom abuts against the outer support leg section, which is farther in relation to the contact web. In the transition region between the two leg sections, an elongate narrow cut-out is provided, wherein two adjacent parallel fastening claws project upwards in the direction of the drawer bottom to be mounted at the edge of this cut-out. These fastening claws are punched out of the material of the connecting component originally located in the punching area and thus form an integral part of the support leg. In the area of their free ends, the fastening claws are each chamfered in opposite directions, so that they taper to a point. During assembly, they are pressed into positive engagement with the underside of the drawer bottom.

Since the fastening claws are relatively sharp-edged and protrude from the surface of the support legs, there is improper Handling the risk of damaging the floor panels during installation. Furthermore, the strength of the connection of the fastening claws to the drawer should be increased.

From the DE 93 03 903 a drawer with a drawer frame and a drawer bottom is known. The drawer frame is provided with an adapter device with a support leg are worked out of the lobes, which are provided with claws. The claws are paired with two prongs, which spread apart when pressed into the drawer bottom and barb-like anchor in the material of the drawer bottom. The flap is formed by horizontal slots, which are open on one side, in the support leg. Again, the claws are relatively sharp.

In the EP 0 888 737 A1 a drawer frame is described, which is associated with an adapter device having a horizontal support leg. From the horizontal support leg several lobes are punched out with an upwardly directed claw. The claw is here in each case arranged on the side of the cloth and has a bent edge. The flaps are aligned in the longitudinal direction of the support web. Since here too, the flap and the claw are very sharp-edged, a high risk of injury is given. In addition, the furniture parts scratch very easily during assembly. In addition, the laterally arranged on the cloth claws fold when driving into the bottom plate at its crease edge, so that a secure attachment of the bottom plate is not always guaranteed.

In the DE 10 2010 036 712 A1 an adapter device for a drawer frame is described, in which on one side of a likewise horizontally oriented support leg claw webs are bent in the direction of the drawer bottom upwards. Again, after bending over the claw webs laterally of the bends remain sharp edges that can lead to scratching the furniture parts.

The invention is therefore based on the object, the adapter device of the generic type so that a secure fixation of Drawer bottom can be secured to the associated drawer frame, in which in particular the risk of scratching of furniture parts is further minimized.

In addition, the invention is concerned with the task of simplifying the installation of a drawer.

This object is solved by the subject matter of claim 1.

This design of the fastening claws the risk of scratching the bottom plate is reduced during assembly and significantly reduces the risk of injury.

A convex back contour of the fastening claw ensures, before being pressed into the ground, that sharp edges, which may also be provided with cutting burrs, do not touch the surfaces on which the adapter comes to rest.

After pressing is preferably and advantageously the back contour does not protrude beyond the bottom of the support leg.

In order to avoid damage to the drawer bottom, a cup-shaped contour is preferably and advantageously pulled in the direction of the drawer bottom out of the support leg.

The claw webs are issued from the support leg transversely to the extension direction, preferably and in turn advantageous from the bottom support portion of the cup-shaped contour.

The claw webs are preferably connected to the side of the drawer center edge of the support leg.

When the claws penetrate into the drawer bottom, the displacement of the claw webs causes a displacement movement, which reduces the distance between the end face of the base and the contact web and brings the end face of the bottom against the contact web into abutment. The connection with the edge portion of the support leg allows on reaching the system on the contact web dodging of the edge portion in the direction of the drawer center out, so that even when granting the usual manufacturing tolerances a plant of the soil is achieved at the plant web.

The support leg has in the extension direction in the edge regions hump, which are issued against the direction of the cup-shaped contour.

Further advantageous embodiments of the invention can be found in the dependent claims.

In addition, the invention is achieved by a drawer with the features of claim 15.

Figur 1

eine perspektivische Darstellung einer zur Verbindung eines Schulkastenbodens mit einer Zargenelements vorgesehenen Adaptereinrichtung;

Figur 2

einen Ausschnitt aus Fig.1;

Figur 3

eine Draufsicht auf die Adaptereinrichtung aus Fig.1;

Figur 4

eine Schnittansicht der Adaptereinrichtung bezogen auf die Schnittlinie I-I in Fig. 3;

Figur 5a

eine vergrößerte Darstellung der Ansicht aus Fig. 4;

Figur 5b

eine vergrößerte Ansicht auf eine Befestigungskralle in Blickrichtung II in Fig. 3;

Figur 5c, 5d

jeweils Abbildungen der Bewegungsabfolge beim Einbringen der Befestigungskralle in einen Schubkastenboden;

Figur 6

eine perspektivische Darstellung in einer Draufsicht eines ersten Ausführungsbeispiels der erfindungsgemäßen Adaptereinrichtung;

Figur 7

eine perspektivische Darstellung der Unterseite der Adaptereinrichtung aus Fig. 6;

Figur 8

eine Schnittansicht gesehen in Richtung der Pfeile C-C in Fig. 6;

Figur 9

eine vergrößerte Darstellung des Ausschnitts im Kreis A in Fig. 6;

Fig. 10

eine vergrößerte Darstellung des Ausschnitts im Kreis B in Fig. 7;

Fig. 11

eine perspektivische Darstellung in einer Draufsicht eines zweiten Ausführungsbeispiels der erfindungsgemäßen Adaptereinrichtung;

Figur 12

eine perspektivische Darstellung der Unterseite der Adaptereinrichtung aus Fig. 11;

Figur 13

eine Schnittansicht gesehen in Richtung der Pfeile C-C in Fig. 11;

Figur 14

eine vergrößerte Darstellung des Ausschnitts im Kreis A in Fig. 11;

Figur 15

eine vergrößerte Darstellung des Ausschnitts im Kreis B in Fig. 12.

Two embodiments of the invention will be described below with reference to the accompanying drawings. Show it:

FIG. 1

a perspective view of a provided for connecting a school case bottom with a Zargenelements adapter device;

FIG. 2

a section from Fig.1 ;

FIG. 3

a plan view of the adapter device Fig.1 ;

FIG. 4

a sectional view of the adapter device with respect to the section line II in Fig. 3 ;

FIG. 5a

an enlarged view of the view Fig. 4 ;

FIG. 5b

an enlarged view of a fastening claw in the direction of II in Fig. 3 ;

Figure 5c, 5d

in each case illustrations of the sequence of movements when inserting the fastening claw into a drawer bottom;

FIG. 6

a perspective view in a plan view of a first embodiment of the adapter device according to the invention;

FIG. 7

a perspective view of the bottom of the adapter device Fig. 6 ;

FIG. 8

a sectional view seen in the direction of arrows CC in Fig. 6 ;

FIG. 9

an enlarged view of the section in the circle A in Fig. 6 ;

Fig. 10

an enlarged view of the section in circle B in Fig. 7 ;

Fig. 11

a perspective view in a plan view of a second embodiment of the adapter device according to the invention;

FIG. 12

a perspective view of the bottom of the adapter device Fig. 11 ;

FIG. 13

a sectional view seen in the direction of arrows CC in Fig. 11 ;

FIG. 14

an enlarged view of the section in the circle A in Fig. 11 ;

FIG. 15

an enlarged view of the section in circle B in Fig. 12 ,

The FIGS. 1 to 15 show an adapter device 1 for the connection of a Zargenelements with a drawer bottom (B, shown), for example in Fig. 5c . d ) or for the attachment of a drawer bottom B to a Zargenelement. The adapter device can also be an integral part of the frame element (not shown here).

The one or more Zargenelement (s) forms / each form a side wall of the drawer. One or more adapter devices 1 can be provided for a drawer frame. On a drawer, one or more such frame members with one or more adapter devices are preferably arranged on two parallel sides.

The adapter device 1 is preferably made of a metal sheet and has a mounting portion for placing the Zargenelements with a U-shaped cross section with a web wall 2 and two side wall sections 3, 4.

The side wall portions 3, 4 are preferably bent from the web wall at an angle such that they are substantially adapted to the inner contour of the Zargenelementes.

The side wall portion 4 is formed such that it lies at least partially in the region of the drawer bottom B, wherein here also advantageously the connecting regions are arranged with the side of the Zargenelementes lying to the drawer center, then preferably carried out vertically (see FIG. 6 ).

As a result, the side wall of the drawer bottom, which is usually executed perpendicular to the bottom surface B, come close to the inner contour of Zargenelementes to rest when the drawer bottom can be brought to the drawer bottom or the Zargenelement to the drawer bottom when connecting with the adapter device.

At the lower edge of the one side wall portion 4, a strip-shaped, perpendicular to the side wall portion 4 bent support leg 5 connects, which is designed to be placed on him in the region of a support portion 19 on a support surface A, the bottom of a bottom plate, not shown here in the mounting position is.

For this purpose, the support portion 19 is formed within the support leg 5, which is shaped in the manner of an elongated, rounded in the corner region, cup-like elevation of the material of the support leg 5. Compared with a over the entire length of the support leg extending continuous survey results from the cup-like survey the advantage that a further stiffening of the support leg is also achieved transversely to the longitudinal extent.

The support portion 19 is slightly, preferably 0.3 to 5 mm, over the plane A5 of the support leg 5 (see Fig. 5a ) in the direction of the drawer bottom to be placed and forms the bearing surface A from. Since it has rounded edges and preferably rounded corners, so far the risk of scratching the drawer bottom when placed on the support leg 5 is already reduced.

The support portion 19 extends almost over the entire length of the support leg 5 and its entire width and can be particularly advantageously and easily formed by a pressing forming process.

The support leg 5 is provided in the region of the support portion 19 with at least one or more, here two windows in the form of punched-out 6, 7, which are formed circumferentially closed. The punched-out 6, 7 are advantageous here in total in the support leg 19 and thus directly adjacent to the support surface A. The cutouts preferably have a substantially T-shape in plan view.

Within the punched-out sections 6, 7, during clipping, claw webs 8 (also called connecting webs) are left, which are oriented transversely or at least essentially transversely to the extension direction Z of the drawer and which face away from the lower edge of the side section 4 (or in the assembled state to the drawer center lying) edge portion 9 of the support leg 5 in the region of the support portion 19 are connected.

This has the advantage that a drawer bottom when pressing the fastening claws on the frame or the adapter device 1 is used by after the penetration of the one, two or more teeth 12,13 of the fastening claw 11 during pivoting of the drawer bottom in the direction of the side wall portion 4 or this is moved to the drawer bottom, depending on which of the parts to be joined during assembly is set (see FIG. 5c ).

The claw webs 8 are compared to the support surface A of the support portion 19 of the strip-shaped support leg 5 bent down and advantageously have an arcuate, convex arched back contour. In order to reinforce the curvature of the claw webs 8, a recess 10, which runs parallel to the edge portion 9, provided within the claw webs 8, so that the claw webs are preferably connected in two areas with the rest of the support leg. Such are the claw webs 8 in itself movable and their claws particularly well in a drawer bottom B (or a bottom plate) can be introduced (see also Fig. 5d ).

Due to the arched, arched back contour of the claw webs 8, the Fig. 5 is clearly visible, on the one hand, the risk of injury is minimized by the claw webs during mounting and it can also be a scratching of furniture surfaces are avoided.

The claw webs 8 extend in a bend on the side facing away from the support surface side of the support section and go at their ends in a fastening claw 11 for engagement in the drawer bottom B, which is oriented perpendicular or nearly perpendicular to the support plane A, but in the delivery state not yet quite approaching the supporting plane A before assembly. The claw webs extend from the side facing away from the leg 4 edge of the punched-6, 7 in the direction of the leg 4 in the punched-6, 7 inside.

The fastening claw 11 preferably has one, two or more serrations 12, 13 for this purpose.

Preferably, the free ends of the prongs 12, 13 are in the unassembled state before placing the drawer between the plane A5 of the support leg 5 and the plane in which the support surface A is located. This shows a particular advantage of the survey 19, as it offers the possibility to arrange the ends of the claws preferably in the above-defined area.

Particularly preferred is the embodiment with two prongs 12, 13, in particular such that the opposite sides of the two prongs 12, 13 include an obtuse angle α. The outer edges are parallel to each other and perpendicular to the bottom surface, ie the width of the fastening claw 11 is constant over the area that will enter the drawer bottom prior to insertion, with the outer edges aligned perpendicular to the drawer bottom (see FIG. 5b . 5c ).

The prongs 12, 13 are prior to assembly below the plane of the support surface A of the support portion of the support leg 5, preferably between the planes A and A5.

When the fastening claws 11 penetrate into the drawer bottom - for example in an assembly station with a pressure element D moved perpendicular to the plane of the drawer bottom B - the fastening claws 11 move upwards (see FIG Fig. 5c ) in the drawer bottom B and it spread the prongs 12, 13 of the fastening claws 11 at the same time to the outside (see Fig. 5d ).

The angle α between the teeth 12, 13 thus increases when the claws 11 with their teeth 12, 13 press into the drawer bottom. It comes advantageously to a barb-like fixing of the claws 12, 13 in the material of the drawer bottom by the width of the fastening claw 11 from the point of the crest to the tips increases (see again Fig. 5d , which shows in dashed lines the position of the fastening claws after penetration into the drawer bottom).

In a second embodiment, in the FIGS. 11 to 15 is shown, a convex or bead-shaped indentation 14 is provided in the claw web 8, which leads to a stiffening of the resulting through the recess 10 bridge 15 in the claw web 8. As a result, the spreading of the teeth 12, 13 can be further supported, since the required tear-out forces are increased.

In order to provide an attachment of the drawer bottom by means of another mounting option, such as a screw, holes 16 are preferably further punched into the support leg 5. As a result, an additional connection of the drawer bottom with the adapter device 1 is possible. It may also be provided to provide only this type of connection. Since the mounting prongs 12, 13 are arranged below the support surface of the support leg 5, they do not interfere with the assembly by means of a screw connection and also do not scratch the floor.

Now lies on an adapter device 1 with its underside on a piece of furniture or other flat surface, the touches in Fig. 8 and Fig. 13 sectional claw web 8 shown this other flat surface only punctiform. As a result, scratches on furniture or other flat surfaces can be effectively prevented. Since the prongs 12, 13 of the fastening claws 11 are below the support surface of the support leg 5, there is also no scratching of the bottom plate when it is brought into an assembly position during assembly. Furthermore, the risk of injury is minimized because the prongs 12, 13 are arranged below the support surface.

In order to avoid scratching even when the adapter device 1 is placed obliquely on another flat surface, one or more spherical-segment-like, for example, hemispherical projections 17 are formed on the underside of the support leg 5, which projections are formed, for example, by press-fitting.

Preferably, a plurality, in particular four, of the projections 17 are respectively provided in the corners of the underside of the support leg 5 of the adapter device 1 in regions outside the support section 19. When placed obliquely on another flat surface, it thus always comes only to a punctiform contact of the support leg 5, so that the risk of damage to the other flat surface is low.

After pressing the fastening claws 11 in the bottom plate of the claw web has been moved to the plane of the support surface A out. However, this plane is spaced from the peripheral edge portion 18 of the support leg 5, which causes the cup-like support portion. Because the projections 17 are formed opposite to the direction of the support surface A from the plane A5 on the underside of the support leg 5, there is a relatively large area by the indented claw webs 8 can be arranged without contact to a flat surface, which is spanned by at least three projections which are arranged through at one or more ground-mounted adapter devices. This means that relatively large height tolerances within the range described here (of Bottom of the drawer bottom to the height of the humpback) can be admitted when pressing the mounting claws, without touching the indented claw webs, which can lead to scratching, at levels below the hump.

Since the humps 17 are formed in the corners of the support leg 5 and thus in the edge region 18, when a bottom plate connected to the adapter devices 1 is placed on a support or a piece of furniture, it stands on the projections 17, so that it is almost punctiform even in the mounted state Contact points are given.

Since the claw webs 8 of the adapter device 1 are arranged transversely to the extension direction of the drawer, a displacement of the drawer bottom in the extension direction Z when driving the prongs 12, 13 of the fastening claws 11 is avoided and ensures a tight fitting. In addition, a lever arm is created by the claw webs 8, so that for the driving of the teeth 12, 13 of the fastening claws 11 in a bottom plate, a relatively small force is required. As a result, the assembly is facilitated and allows precise positioning of the adapter device 1 on the bottom plate.

LIST OF REFERENCE NUMBERS

1

adapter device

2

web wall

3

Sidewall portion

4

Sidewall portion

5

supporting leg

6

punching

7

punching

8th

claws Steg

9

edge section

10

recess

11

fixing claw

12

jag

13

jag

14

indentation

15

bridge

16

drilling

17

humpback

18

border area

19

bearing section

A

bearing surface

A5

level

D

Pressure piece

B

ground

Z

extraction direction

Claims (15)

1. An adapter device, which has at least one supporting leg (5) for supporting a drawer bottom (B), wherein one or more claw webs (8) having one or more fastening claws (11) having one or more tines (12, 13) are formed out of the material of the supporting leg (5), which are connectable to the drawer bottom, wherein the claw webs (8) are bent per se such that the tines (12, 13) are located before the assembly below a supporting surface (A) for the drawer bottom on the side of the supporting leg (5) facing away from the supporting surface (A), wherein the claw webs (8) are aligned within peripherally closed punch-outs (6, 7) transversely to the longitudinal extension of the supporting leg (5) and are implemented as arced having a convex back contour, characterized in that, when the adapter device (1) rests with its lower side on a furniture part or another level surface, the claw webs (8) only touch the furniture part or this other level surface in a punctiform manner.
2. The adapter device according to Claim 1, characterized in that it is furthermore embodied for connection to a frame element or as an integral component of a frame element.
3. The adapter device according to Claim 1 or 2, characterized in that the adapter device (1) is manufactured from a metal plate and has a first section having a U-shaped cross section, wherein the supporting leg (5) adjoins the lower edge of a side wall section (4) bent over perpendicularly.
4. The adapter device according to one of the preceding claims, characterized in that at least one supporting section (19) is implemented inside the supporting leg (5), which is shaped like a bowl-like protrusion as a pressed-in area out of the material of the supporting leg (5), and the protrusion forming the supporting section (19) has an elongated contour.
5. The adapter device according to one of preceding Claims 1 to 3, characterized in that at least one supporting section (19) formed as a protrusion is implemented inside the supporting leg (5), wherein the protrusion forming the supporting section (19) has an elongated contour.
6. The adapter device according to Claim 4 or 5, characterized in that the claw webs (8) are erected out of the supporting leg (5) transversely to a pullout direction out of the supporting section (19), in particular the bowl-shaped protrusion.
7. The adapter device according to one of Claims 3 to 6, characterized in that the claw webs (8) are connected to the edge of the supporting leg (5) located remote from the side wall section (4), in particular such that during the penetration of the fastening claw(s) into the drawer bottom (B), a displacement movement is performed by the pivoting of the claw webs, which reduces the distance between the end side of the drawer bottom (B) in relation to the side wall section (4) and preferably brings an end side of the drawer bottom (B) into contact in relation to the side wall section (4).
8. The adapter device according to one of Claims 4 to 7, characterized in that the protrusion forming the supporting section (19) is implemented as rounded on one or more of its edges, and/or the protrusion forming the supporting section (19) is implemented as rounded in one or more corner regions.
9. The adapter device according to one of Claims 4 to 8, characterized in that the protrusion forming the supporting section (19) protrudes somewhat, preferably 1 to 4 mm, beyond the plane (A5) of the supporting leg (5) in the direction of the drawer bottom, and it implements/has the supporting surface (A) for the drawer bottom.
10. The adapter device according to one of Claims 4 to 9, characterized in that the claw webs (8), at the side of the supporting section (19) located facing away from the supporting surface (A), firstly extend in a bend, and they merge at their ends into the fastening claw (11) for the engagement in the drawer bottom, which has one or more tines, which are aligned perpendicularly or nearly perpendicularly to the supporting plane A, but do not yet extend entirely up to the supporting plane (A) in a state before the assembly.
11. The adapter device according to one or more of Claims 3 to 10, characterized in that the claw web(s) (8) is/are connected to the supporting leg at the edge of the window of the supporting leg (5), and/or the claw web(s) (8) is/are connected to an edge section (9), which is located facing away from the bottom edge of the lateral section (4), of the supporting leg (5) in the region of the supporting section (19).
12. The adapter device according to one or more of the preceding claims, characterized in that the at least one claw web (8) is provided with a recess (10), and/or the free ends of the tines are located in the non-assembled state between the plane (A5) of the supporting leg (5) and the plane in which the supporting surface (A) is located.
13. The adapter device according to one or more of the preceding claims, characterized in that the fastening claws (11) are each provided with a pair of the tines (12, 13), the opposing sides of which form an obtuse angle α, wherein the width of the fastening claws 11 over the region which will penetrate into the drawer bottom is constant before the pressing in and is aligned perpendicularly to the supporting surface (A) of the supporting section (19) and spread apart during the engagement in the drawer bottom.
14. The adapter device according to one or more of the preceding claims, characterized in that

    - the claw web(s) (8) has/have a crowned or bead-shaped formation (14), and/or

    - one or more bumps (17) are implemented adjacent to the supporting section (19) in the supporting leg (5), wherein preferably the supporting leg (5) has one or more bumps (17) in the pullout direction in the edge regions, which are erected opposite to the direction of the bowl-shaped contour,

    - and/or furthermore one or more screw boreholes (16) are implemented in the supporting leg (5).
15. A drawer having at least one adapter device according to one or more of Claims 1 to 14.

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