DE102013208494A1 - Device for toolless connection of components i.e. furnitures, in furniture industry, has outer flange whose front end comprising recess for holding of other outer flange, and connection pin provided for introduction into hollow dowels - Google Patents

Abstract

The device has a hollow dowel (1) comprising an outer flange for projecting over a side provided with an aperture of a component. Another hollow dowel extends from an aperture in another component and comprises a shaft with an end for arrangement in a borehole of the latter component. A front end of an outer flange (8) of the latter hollow dowel comprises a concentric recess for holding of the former outer flange with the components opposite to side surfaces. A connection pin (11) is provided for introduction into the hollow dowels.

Description

The invention relates to a (plug) connection for connecting at least two components, in particular for furniture, which allows a gap-free connection of the components.

Such connector devices designed as connectors are already known. A major disadvantage of all known connectors is that the depth of the blind hole must be accurately drilled to achieve a smooth workpiece surface with the connector. Also, the introduction of a connector in the bore of a workpiece can be limited by a retaining collar in a reduction. In industrial series production, both possibilities entail major disadvantages, since, for example, in the furniture industry, the chipboards have large tolerances with respect to their plate thickness (eg 18.85 mm instead of 19 mm). For this reason, an exact drilling and sinking depth of the workpiece can not be guaranteed. Furthermore, the lowering process requires an additional operation or additional special tools, which have an increase in production costs.

Consequently one uses in furniture construction for demountable furniture, connection fittings, which on the DIN standard 68856-1 for furniture locks and fittings. Among other things, this DIN standard includes eccentric connectors, screw-in bolts, trapezoidal connectors, screw connectors and wooden dowels. Furniture fittings after the DIN standard 68856-1 have the disadvantage that they are relatively labor-intensive and cost-intensive. The disadvantages arise already in the production by being present several different bore diameters and several different fasteners. Furthermore, disadvantages arise in the subsequent assembly in that craft activities such as fittings must be used with the use of tools. From the EP 1 473 468 B1 is a connector for attaching a furniture handle od. Like. Known on a furniture part. The connecting element consists of a hollow dowel with a central through hole, which is used with its lying on the outside holding teeth in a bore of the furniture part and limited by its retaining collar in depth. The snap mechanism is triggered, in which a od associated with the furniture handle. The like. Plug-in pin is inserted. The hollow dowel has at its front end longitudinal sections and an inwardly projecting support collar which springs in the mounted state in a circumferential groove of the spigot and is positively supported with its frontal support surface on the rückwertigen annular re-bearing surface of the spigot. Consequently, the depth of the connector must be limited by the retaining collar to allow snapping the support collar in the peripheral groove of the spigot. In order to achieve a smooth surface on coated or veneered panels, therefore, the bore must be lowered.

From the DE 199 23 107 C1 a fastener is known, which connects a furniture part with a provided on a fastening pin component or on another furniture part. The fastening element essentially has a cylindrical design with a passage opening. The snap mechanism is triggered by a mounting pin with bead, which snaps into the annular groove of the hollow dowel. The insertion depth of such a connection must also be limited by a reduction.

From the DE 199 15 119 B4 a mounting element for furniture construction is known, which consists of a mounting sleeve with an eischlagbaren connecting pin, which is inserted into a bore of the furniture part, wherein the insertion movement is limited by a stop ring. The retaining springs of the mounting sleeve are clamped in Einschlagstellung in the bore of the furniture part. The locking surfaces are located at the front end of the mounting sleeve, which engage in the impact position in a circumferential circumferential groove of the connecting pin. In this case, the latching groove and / or latching lugs may have a plurality of latching steps. A disadvantage of this mounting element is to mention that between the components to be joined, a gap is formed. This is caused by the stop ring, which rests on the surface of the components.

From the DE 22 42 981 A1 is a releasable connection of two parts known in which the connecting element consists of a hollow stopper with detents, in which a pin engages with counter-locking. During the variant after 1 - 3 It represents a detachable connection for wood-metal parts, according to 4 - 7 possible to connect only wooden parts with each other. In both variants shown, the pin is divided by a flange in two areas. The hollow stopper has a stop ring. This has the consequence that here, too, without a reduction, a gap arises between the components to be joined.

The object of the invention is therefore to improve the known connectors so that no more reduction is required for the connection of the components.

To solve this problem, the invention proposes a device for connecting two components, in particular a piece of furniture, which is provided with the features of claim 1. Advantageous embodiments are the subject of the dependent claims.

With the invention, therefore, a connecting device is provided which comprises two hollow dowels, which are arranged opposite one another with their one (rear) axial ends and are located in bores of two components to be connected. The rear end of a hollow dowel has an outer flange, which projects beyond the side of the component, in which the bore is introduced. The other hollow dowel is located in the other component with its outer flange in alignment with the side of this other component in which the bore is formed. The extent sunk in the second component arranged outer flange of this other hollow dowel thus takes on the protruding outer flange of a hollow dowel, so that both side parts in the interconnected state close together.

This eliminates unwanted gaps between two components and improves the quality of the connection. In addition, the production becomes more economical by eliminating the lowering operation on that component into which the hollow dowel with the protruding outer flange is inserted. In addition, it remains according to the invention that a simple and tool-free assembly and disassembly is possible.

• – einem Hohldübel mit Anschlagring zum unverlierbaren Einsetzen in eine Bohrung eines ersten Gegenstandes, an dem ein zweiter Gegenstand zu befestigen ist, sowie
• – einem zweiten Hohldübel mit einem Haltebund und eine Vertiefung auf seinem vorderen Ende
• – wobei die Hohldübel ein vorderes und ein hinteres axiales Ende aufweisen, das bei in die Bohrung eingesetztem Hohldübel weniger weit als das vordere Ende in die Bohrung eingeführt ist,
• – einem Verbindungszapfen zum Einführen in den Hohldübel,
• – wobei der Verbindungszapfen ein mit dem vorderen Ende des Hohldübels zusammenwirkendes vorderes Ende aufweist, das von einem Rastkopf gebildet ist,
• – wobei das vordere Ende des Hohldübels längs geschlitzt ist und mindestens zwei, vorzugsweise drei, vier oder mehr elastische Umfangsabschnitte mit nach innen vorstehenden Schnappvorsprüngen zum Hintergreifen des verbreiterten Rastkopfes des Steckzapfens aufweist, und
• – wobei auf den Verbindungszapfenzapfen eine axiale Vorspannkraft in Richtung auf das vordere Ende des Hohldübels wirkt, wenn die Schnappvorsprünge des Hohldübels bei radial auswärts erfolgter elastischer Verformung der Umfangsabschnitte den Rastkopf des Verbindungszapfens hintergreifen und an diesem anliegen.

According to an advantageous embodiment of the invention, a device is proposed with this, which is designed so that it requires no reduction in the components to be connected, with

• - A hollow dowel with stop ring for captive insertion into a bore of a first article to which a second object is to be attached, and
• - A second hollow dowel with a retaining collar and a recess on its front end
• - wherein the hollow dowels have a front and a rear axial end, which is inserted less than the front end into the bore when inserted into the bore hollow dowel,
• A connecting pin for insertion into the hollow dowel,
• - wherein the connecting pin has a cooperating with the front end of the hollow dowel front end, which is formed by a locking head,
• - Wherein the front end of the hollow dowel is slotted longitudinally and at least two, preferably three, four or more elastic peripheral portions having inwardly projecting snap projections for engaging behind the widened locking head of the spigot, and
• - Wherein acts on the connecting pin journal an axial biasing force in the direction of the front end of the hollow dowel when the snap projections of the hollow dowel engage in radially outward elastic deformation of the peripheral portions of the locking head of the connecting pin and abut this.

The above object is thus solved analogously in that the hollow dowel is used with stop ring in a bore of one of the components to be connected, wherein the stop ring rests on the component and protrudes by its thickness. This projection is received by the second hollow dowel with retaining collar through the recess on its front end side end, whereby a gap-free connection of the parts is possible.

The hollow dowel with stop ring is preferably used on hard-faced components, for example, coated chipboard. The hollow dowel with retaining collar is used on soft materials, for example on the front side of the chipboard. Since the chipboard front side consists of raw wood chip, the hollow dowel can be pressed with retaining collar without prior reduction in the bore, whereby a smooth surface of the component is achieved.

The connector consists of at least one, preferably two, hollow dowel with integrated snap, in which a connecting pin with circumferential locking groove releasably engages and automatically generates the Vorspankraft on the connecting pin in the axial direction in the final assembly position.

The hollow dowel can be factory-pressed during production or subsequently during assembly into the bore of the furniture part, wherein the projections arranged on the outer circumference deform elastically and reinforce the frictional connection in the bore. By inserting the connecting pin into the hollow dowel preferably claws of the hollow dowel, which are separated by longitudinal sections, radially knocked out, so that they additionally cause a heavy-duty anchoring of the hollow dowel in the bore of the furniture part.

The snap mechanism is triggered in the further course of the joining process by the connecting pin with little effort. The spigot first presses with its catch head narrowed by the snapper inner portion of the hollow dowel at its front ends so far apart that the snap projections in z. B. engage a circumferential locking groove of the plug behind the locking head. The joining and loosening forces can be adapted to the requirements by designing the snap and release angles of the snapper. The connecting pin stands in solid operative connection with the hollow dowel. Of the Connecting pin can be solved with a predefined force again.

The Vorspankraft is generated in the last step of the joining process by the support collar, which is located at the front end of the hollow dowel. The plug pin presses with its locking head in the final assembly position by the support collar radially narrowed central bore of the hollow dowel far apart until the attached to the outer surface of the hollow dowel projections are pressed against the inner wall of the hole. In this way, the snapper is offset in the joining direction in an inclined position, thereby the plug-in pin is pressed in the final assembly position like a lever against the release direction. The consequence of this is that the components to be assembled are biased against each other and thus "compressed".

The support collar formed by the Auslenkvorsprünge at the front end of the hollow dowel is separated by the longitudinal sections and fulfills two additional functions in addition to the generation of Vorspankraft. On the one hand, this area serves as a limit to prevent slipping of the plug-in pins from the hollow dowels. On the other hand, the support collar responsible for the spreading process at the front end of the hollow dowel, which additionally an interference fit of the hollow dowel is achieved in the bore of the furniture part.

According to one embodiment of the hollow dowel is provided that the introduction into the bore of the furniture part is limited by a retaining collar. The retaining collar has a recess at its front end.

According to a further embodiment of the hollow dowels is provided that the introduction into the bore of the furniture part is limited by a stop ring.

According to a further embodiment of the hollow dowel is provided that the retaining collar has on the side facing the surface of the component, retaining ribs to avoid when pressing the hollow dowel in the bore bending of the retaining collar.

According to a further embodiment of the hollow dowel the ausschlagbaren claws can be provided with an anchoring rib or more anchoring ribs.

According to a further embodiment of the hollow dowel, the ausschlagbaren claws can be provided with a cap made of soft plastic to fixation in hard and smooth materials such. B. plexiglass to allow.

In the connection pin is generally a cylindrical pin with circumferential locking groove, wherein the active surfaces of the locking groove can be arranged orthogonal or oblique to the latching surfaces of the snapper. The shape of the active surfaces can be changed and adapted to strength requirements. The connecting pin in this case has an outer diameter which corresponds approximately to the inner diameter of the hollow dowel located in the central bore, and is inserted axially in the central bore. The connecting pin is formed at its end with a dome.

According to one embodiment of the connecting pin for connecting two components of the connecting pin can be provided on both sides with a circumferential locking groove.

According to a further embodiment of the connecting pin for connecting a furniture fitting or the like. On a furniture part of the connecting pin can be provided on one side with a circumferential locking groove and on the other side with an external thread or a threaded hole.

According to a further embodiment of the connecting pin for connecting a furniture fitting, the structure can be made so that the plug-in pin is made with circumferential locking groove of one piece with the furniture fitting.

Advantages arise over existing solutions by eliminating the sinking process. This can still eliminate unwanted gaps between two components and the quality of the connection can be improved. Further advantages can be subsumed under the categories of simplicity, new design possibilities, time savings and cost advantages, whereby the production of the components to be connected is simplified and thereby the production costs are reduced.

The hollow dowel is z. B. made of a thermoplastic material using the injection molding process. The connecting pin should also be made of a thermoplastic material, the production of a connecting pin made of a metallic material is also possible.

In an alternative embodiment of the invention may be provided instead of the second hollow dowel and the second component, a handle or other (in particular Möbelbeschlag-) part from which protrudes the connecting pin and that on the side, the connection of the part with the first component whose side provided with the opening rests, a concentric Receiving recess for the outer flange of the first (and only) hollow dowel.

Embodiments of the invention are explained in more detail below with reference to drawings. Show it:

1 the hollow dowel according to the invention and the spigot in isometric view,

2 a sectional view taken along the line AA at the front end of the hollow dowel,

3 a sectional view of the connecting element in the assembled state with a plug-in pin with circumferential locking groove at both ends to connect two components,

4 a sectional view of the connecting element in the assembled state with a one-sided threaded pin for connecting a fitting part to a furniture part,

5 the connecting element in the mounted state with a plurality of anchoring ribs on the claws,

6 the connecting element according to the invention with a one-piece manufactured fitting part and plug-in pin,

7 the hollow dowel with stop ring in lateral view,

8th the hollow dowel with stop ring in plan view,

9 the hollow dowel with stop ring in isometric view,

10 the hollow dowel with retaining collar in lateral view,

11 the hollow dowel with retaining collar in plan view,

12 the hollow dowel with retaining collar in isometric view,

13 a sectional view of the connecting element in the assembled state between two components and

14 a sectional view of the connecting element in the assembled state between three components

As the drawings show, the hollow dowel according to the invention substantially consists of a cylindrical body 1 , with arranged on the outer circumference of the hollow dowel retaining projections 2 for fixing the hollow dowel in a (receiving) bore z. B. a furniture part. The hollow dowel is slotted along a part of its length along the cylinder axis 3 , The longest slotted areas 3 are deformable and have at their ends outer retaining teeth 4 on, for an additional clamping the hollow dowels in the bore of the furniture part 5 are responsible. The claws 6 are also by longitudinal cuts 3 from the cylindrical body 1 are separated and pressed inward in the bore, when pressed in, in the direction of the cylinder axis, whereby the inner diameter of the central bore 7 the hollow dowel 1 is reduced. The hollow dowel can on its outer circumference additional retaining claws 20 exhibit.

The arranged projections 2 can be a certain excess over the diameter of the bore of the furniture part 5 have, which during the pressing of the hollow dowel 1 into the hole 5 strengthen the traction. Inserting the hollow dowel into the hole 5 is by a tie 8th limited, wherein the retaining collar with retaining ribs 21 can be trained. The retaining collar can at its front end a recess 22 exhibit. The outside diameter of the hollow plug 1 can be reduced over at least part of its length and by at least as much as expected for the snap action and preload generation at diameter expansion.

The snap tabs 9 and the support collar 10 , in conjunction with the widened end (locking head) of the spigot 11 serve to generate the axial prestressing force are in the central bore 7 integrated. The support collar 10 is located at the front end of the hollow dowel and narrows the central bore 7 of the hollow dowel radially.

The spigot 11 is cylindrical and has a dome at its end 12 (Locking head) on. The circumferential locking groove 13 offers the snap tabs 9 for biasing force generation counter surfaces. By inserting the spigot 11 be the claws first 6 into the inside of the hole in the furniture part 5 fixed, next the snap mechanism is released with little effort and in the last step, the biasing force in the axial direction on the plug pin 11 generated.

7 to 13 show second embodiment of a connecting device with first and second hollow dowels, as described above and in the claim version in detail. 13 shows the two components 19 in the connected state, with their sides, in which the openings for the mounting holes 5 for the two hollow dowels 6 are formed, lie against each other without a gap, although the in 13 Left illustrated hollow dowel 6 with its outer flange 14 from the relevant side of the component 19 rises up and from the depression around the outer flange 8th of in 13 Right dowel shown on the right 6 is included. A reduction is not to be made in any of the two components. This is especially true for the in 13 shown right component whose material (for example, particle board material) a turning of the hollow dowel with outer flange 8th such that allows the outer flange 8th is flush with the side of the component, in which the bore is introduced, is.

• 1. Steckverbindung zur werkzeuglosen Montage und Demontage, insbesondere für den Möbelbau, die ohne eine Senkung der Bauteile eine spaltfreie Verbindung ermöglicht, wobei der Hohldübel im Wesentlichen aus einem zylindrischen Körper 1, mit auf dem Außenumfang des Hohldübels angeordneten Vorsprüngen 2 besteht. Der Hohldübel ist über einen Teil seiner Länge, entlang der Zylinderachse längs geschlitzt 3. Die längst geschlitzten Bereiche 3 sind verformbar und weisen an ihren Enden Haltezähne 4 auf, die für ein zusätzliches Festklemmen der Hohldübel in der Bohrung des Möbelteils 5 verantwortlich sind. Der Hohldübel kann auf seinem Außenumfang zusätzlichen Haltekrallen 20 aufweisen. Die Krallen 6 sind ebenfalls durch Längsschnitte 3 von dem zylindrischen Körper 1 getrennt und werden beim Eindrücken in der Bohrung nach innen, in Richtung der Zylinderachse gedrückt, wodurch der Innendurchmesser der zentralen Bohrung 7 reduziert wird. Der Außendurchmesser des Kohldübels 1 kann über mindestens einen Teil seiner Länge und um mindestens so viel verkleinert werden, wie für den Schnappvorgang und Vorspannkraft Erzeugung an Durchmesser Ausweitung zu erwarten ist. Die Schnappvorsprünge 9 zur Axialvorspannkrafterzeugung sind in der zentralen Bohrung des Hohldübels 7 integriert. Der Stützbund 10 zur Erzeugung der Vorspankraft befindet sich am vorderen Ende des Hohldübels und verengt die zentrale Bohrung des Hohldübels 7 radial. Der Steckzapfen 11 ist zylinderförmigen und weist an seinem Ende einer Kuppe 12 auf. Der umlaufende Rastnut 13 bietet den Schnappvorsprüngen 9 zur Schlusserzeugung Gegenflächen.
• 2. Steckverbindung nach Ziffer 1, wobei die Füge- und Lösekräfte der Schnappvorsprünge 9 an die gestellten Anforderungen durch Gestaltung der Füge- und Lösewinkel angepasst werden können.
• 3. Steckverbindung nach Ziffer 1 oder 2, wobei der Stützbund 10 am vorderen Ende des Hohldübels durch Längsschnitte 3 getrennt ist und die zentrale Bohrung des Hohldübels 7 radial verengt. Der Stützbund 10 erfüllt neben Erzeugung von Vorspankraft noch zwei weitere Funktionen. Zum einen dienen diese Bereiche als Begrenzung, um ein Durchrutschen der Steckzapfen 11 aus der Hohldübel 1 zu verhindern. Zum anderen ist der Stützbund 10 für den Spreizvorgang am vorderen Ende des Hohldübels 1 verantwortlich, wodurch zusätzlich ein Presssitz der Hohldübel in der Bohrung des Möbelteils erreicht wird.
• 4. Steckverbindung nach einer der vorhergehenden Ziffern, wobei die Einführung der Hohldübel 1 in die Bohrung des Möbelteils 5 durch einen Haltebund 8 begrenzt wird, wobei der Haltebund an seinem vorderen Ende eine Vertiefung 22 aufweist, um den Vorsprung, der durch das Anschlagring 14 entstehen kann aufzunehmen, wodurch eine glatte Möbelteiloberfläche sichergestellt wird.
• 5. Steckverbindung nach einer der vorhergehenden Ziffern, wobei die Einführung der Hohldübel 1 in die Bohrung des Möbelteils 5 durch einen Anschlagring 14 begrenzt wird.
• 6. Steckverbindung nach einer der vorhergehenden Ziffern, wobei die ausschlagbaren Krallen 6 mit einem Ankerungsrippe 15 oder mit mehreren Ankerungsrippen 16 versehen sein können.
• 7. Steckverbindung nach einer der vorhergehenden Ziffern, wobei die ausfahrbaren Krallen 6 mit einer Kappe aus weichem Kunststoff versehen sind, um eine Fixierung in harte und glatte Materialien wie z. B. Plexiglas zu ermöglichen.
• 8. Steckverbindung nach einer der vorhergehenden Ziffern, wobei die Wirkflächen der Rastnut 13 des Verbindungszapfens 11 orthogonal oder schräg zu den Rastflächen der Schnappvorsprünge 9 angeordnet sind. Die Gestalt der Wirkflächen kann verändert und an Festigkeitsanforderungen angepasst werden.
• 9. Steckverbindung nach einer der vorhergehenden Ziffern, wobei der Verbindungszapfen 11 zum Verbinden zweier Bauteilen auf beide Seiten mit einer umlaufenden Rastnut 13 versehen ist.
• 10. Steckverbindung nach einer der vorhergehenden Ziffern, wobei der Verbindungszapfen 11 zum Verbinden eines Möbelbeschlags o. dgl. an einem Möbelteil 19 auf eine Seite mit einer umlaufenden Rastnut 13 und auf der anderen Seite mit einem Außengewinde 17 oder einer Gewindebohrung oder einer anderen mechanischen Verbindungsstruktur für die Befestigung des Möbelbeschlags o. dgl. versehen ist.
• 11. Steckverbindung nach einer der vorhergehenden Ziffern, wobei der Verbindungszapfen 11 mit umlaufender Rastnut 13 aus einem Stück mit dem Möbelbeschlag 18 hergestellt werden kann.

The essential characteristics, features and advantages of the invention can be summarized as follows:

• 1. Plug-in connection for tool-free assembly and disassembly, in particular for furniture, which allows a gap-free connection without lowering the components, wherein the hollow dowel consists essentially of a cylindrical body 1 , with projections arranged on the outer circumference of the hollow dowel 2 consists. The hollow dowel is slotted along a part of its length along the cylinder axis 3 , The longest slotted areas 3 are deformable and have at their ends holding teeth 4 on, for an additional clamping the hollow dowels in the bore of the furniture part 5 are responsible. The hollow dowel can on its outer circumference additional retaining claws 20 exhibit. The claws 6 are also by longitudinal cuts 3 from the cylindrical body 1 are separated and pressed inward in the bore, when pressed in, in the direction of the cylinder axis, whereby the inner diameter of the central bore 7 is reduced. The outer diameter of the Kohldübels 1 can be reduced over at least a portion of its length and at least as much as expected for the snap action and preload force generation at diameter expansion. The snap tabs 9 for Axialvorspannkrafterzeugung are in the central bore of the hollow dowel 7 integrated. The support collar 10 to generate the Vorspankraft located at the front end of the hollow dowel and narrows the central bore of the hollow dowel 7 radial. The spigot 11 is cylindrical and has a dome at the end 12 on. The circumferential locking groove 13 offers the snap tabs 9 for final production mating surfaces.
• 2. Plug connection according to figure 1 , wherein the joining and releasing forces of the snap projections 9 can be adapted to the requirements by designing the joining and loosening angles.
• 3. Plug connection according to figure 1 or 2 , where the support collar 10 at the front end of the hollow dowel by longitudinal cuts 3 is separated and the central bore of the hollow dowel 7 radially narrowed. The support collar 10 In addition to generating bias, it fulfills two additional functions. On the one hand serve these areas as a limitation to slipping of the spigot 11 from the hollow dowel 1 to prevent. On the other hand, the support collar 10 for the spreading process at the front end of the hollow dowel 1 responsible, which additionally an interference fit of the hollow dowel is achieved in the bore of the furniture part.
• 4. Plug connection according to one of the preceding figures, wherein the introduction of the hollow dowel 1 into the bore of the furniture part 5 through a tie 8th is limited, wherein the retaining collar at its front end a recess 22 has, to the projection, by the stop ring 14 incurred can absorb, whereby a smooth furniture part surface is ensured.
• 5. Plug connection according to one of the preceding figures, wherein the introduction of the hollow dowel 1 into the bore of the furniture part 5 through a stop ring 14 is limited.
• 6. Plug connection according to one of the preceding figures, wherein the knock-out claws 6 with an anchoring rib 15 or with multiple anchoring ribs 16 can be provided.
• 7. Plug connection according to one of the preceding figures, wherein the extendable claws 6 are provided with a cap made of soft plastic, in order to fix in hard and smooth materials such. B. plexiglass to allow.
• 8. Plug connection according to one of the preceding figures, wherein the active surfaces of the locking groove 13 of the connecting pin 11 orthogonal or oblique to the locking surfaces of the snap projections 9 are arranged. The shape of the active surfaces can be changed and adapted to strength requirements.
• 9. Plug connection according to one of the preceding figures, wherein the connecting pin 11 for connecting two components on both sides with a circumferential locking groove 13 is provided.
• 10. Plug connection according to one of the preceding figures, wherein the connecting pin 11 for connecting a furniture fitting o. The like. On a furniture part 19 on one side with a circumferential locking groove 13 and on the other side with an external thread 17 or a threaded hole or other mechanical connection structure for the attachment of the furniture fitting o. The like. Is provided.
• 11. Plug connection according to one of the preceding figures, wherein the connecting pin 11 with circumferential locking groove 13 in one piece with the furniture fitting 18 can be produced.

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• EP 1473468 B1 [0003]
• DE 19923107 C1 [0004]
• DE 19915119 B4 [0005]
• DE 2242981 A1 [0006]

Cited non-patent literature

• DIN standard 68856-1 [0003]
• DIN standard 68856-1 [0003]

Claims (3)

Device for the tool-free connection of two components, in particular a piece of furniture under installation thereof, with - a first hollow dowel ( 1 ) for captive insertion into a bore of a first component, with which a second component is to be connected, - wherein the bore extends from an opening located in a side surface of the first component into the first component, - wherein the first hollow dowel ( 1 ) a shaft having a front end for placement in the bore of the first component and an outer flange ( 14 ) (also referred to as a stop ring in the text) as a stop at a front end opposite the rear end, - wherein the outer flange ( 14 ) is provided to survive on the provided with the opening of the bore side of the first component, - a second hollow dowel ( 1 ) for captive insertion into a bore of the second component, which extends from an opening located in a side surface of the second component opening into the second component, - wherein the second hollow dowel ( 1 ) a shank having a front end for placement in the bore of the second component and an outer flange ( 8th ) (in the text also called retaining collar) as the front end opposite the rear end of the hollow dowel ( 1 ) having a front end facing away from the front end for flush arrangement in the side surface of the second component and - wherein the end face of the outer flange ( 8th ) of the second hollow dowel ( 1 ) a (concentric) recess for receiving the outer flange ( 14 ) of the first hollow dowel ( 1 ) has adjacent components with their side surfaces, and - a connecting pin ( 11 ) for insertion into both the first hollow dowel ( 1 ) as well as in the second hollow dowel ( 1 ). Apparatus according to claim 1, characterized in that the connecting pin with the front ends of the first and second hollow dowels ( 1 ) has cooperating ends, each of a latching head ( 12 ) are formed, that the front ends of the first and second hollow dowels ( 1 ) are longitudinally slit and at least two, preferably three, four or more elastic peripheral portions with inwardly projecting snap projections ( 9 ) for engaging behind the widened locking head ( 12 ) of the connecting pin ( 11 ), wherein on the connecting pin ( 11 ) an axial biasing force in the direction of the respective front end of the first and second hollow dowels ( 1 ) acts when the snap projections ( 9 ) of the hollow dowels ( 1 ) at radially outward elastic deformation of the peripheral portions of the respective latching head ( 12 ) of the connecting pin ( 11 ) behind and abut this. Apparatus according to claim 2, characterized in that the elastic peripheral portions of the snap projections ( 9 ) in the direction of the front ends of the first and second hollow dowels ( 1 ) upstream Auslenkvorsprünge ( 10 ), which are completely in the respective hollow dowel ( 1 ) inserted connecting pin ( 11 ) at its locking head ( 12 ) for the radial disengagement of the peripheral sections and for the associated generation of the prestressing force by the respective latching head ( 12 ) engaging behind and on this snapping projections ( 9 ) issue.

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