DE202013102730U1 - Connecting element and plug connection with connecting elements - Google Patents

Abstract

Connecting element (100, 114, 200, 214) for carrying out a plug-in connection by at least substantially non-positive and / or positive engagement of a mandrel-like male part (102) and a sleeve-like female part (103), each connecting element (100, 114; 200, 214) is formed both with such a male part (102) and with such a female part (103).

Description

The invention relates to a connecting element. The invention further relates to a connector with such fasteners.

State of the art

From the German Patent 1 625 393 is a connector, in particular for connecting wood, stone, marble, concrete and metal parts, known, consisting of two releasably latching interlocking fastened to the parts to be connected fasteners, of which the one element (male) as a with at least one broadened, double frustoconical head provided mandrel and the other element (die) as this mandrel head after meshing comprehensive, with a collar-like edge behind, at least in the cooperating with the double truncated cone opening area provided with longitudinal slots, made of resilient resilient material, preferably plastic existing sleeve is formed, wherein in the depressed state of the male part in the female part, the contours of the mandrel are firmly engaged in the corresponding mating contours of the sleeve piece in the female part.

The male part has the shape of a multiple stepped rotationally symmetrical, one-piece element, which is preferably made of a suitable plastic. The lower part of the male part is designed as a hollow mounting pin open at the bottom, on the outer circumference of four sawtooth-like profile rings are formed so that the mounting pin with its end slightly push into a cylindrical bore, but little or no longer pull out. At an upper end surface of the uppermost profile ring, a cylindrical neck piece connects, which merges into the mandrel. The matching to the male part female part has a likewise hollow mounting pin with four sawtooth profile rings, and the top profile ring is followed by a cylindrical sleeve piece whose inner walls are substantially adapted to the contours of the previously described mandrel.

The male part is indissoluble pressed into a hole in a wooden plate. The outer diameter of this hole is slightly smaller than the outer diameter of the sawtooth-like profile rings held in their relaxed state, so that the profile rings must bake in the bore barb-like. In a corresponding manner, the female part is pressed with its mounting pin into a hole in a wooden plate so far that the front end face of its sleeve piece is flush with an upper surface of the wooden plate. However, the male part is pressed only to its upper end face in the bore, so that the cylindrical neck piece protrudes with the mandrel on a front surface of the wooden plate and, as soon as the two wooden plates are approached, can be pressed into the recess of the sleeve piece. The cylindrical outer walls of the sleeve piece do not abut against the hole in the wooden plate, but have enough play against them to be able to expand when pressing the mandrel can.

From the German utility model 7312808 is a device for the connection of furniture elements, in particular those of attachment and construction furniture, known, in which the furniture elements are interlocked point by point by fastening means. For this purpose, the furniture elements by means of snaps together as a connecting element, and the button parts of the push buttons are provided on the underside of the furniture elements and the lower parts of the push buttons are at the top of the furniture elements or on or between these to be installed cover or intermediate plates or below placing socket frame arranged. The push buttons are formed so that the push-button parts such as button part and lower part have cylindrical pieces from which these push-button parts are worn. These cylinder pieces are advantageously provided on the circumference with all-round ribs or grooves. In order to ensure a tight fit of the snap fastener parts in the wood, the ribs and grooves - seen in cross section - sharp-edged, for example, with sawtooth design, be formed. The snap fastener parts are advantageously made of plastic. When assembling the furniture parts with the plates u. Like. Engages the button part in the lower part, which is made elastic by slits.

DESCRIPTION OF THE INVENTION: Problem, Solution, Advantages

The invention has the object to achieve in a connecting element of the type described as well as a connector with such fasteners further simplification in the manufacture and handling and a reduction of the costs incurred.

This object is achieved by a connecting element for carrying out a plug connection by at least largely non-positive and / or positive engagement of a mandrel-like male part and a sleeve-like female part, wherein each connecting element is formed both with such a male part and with such a female part.

By virtue of the fact that the connecting element according to the invention, i. Each copy of this connecting element, both a male part and a female part, each copy can optionally be used as a male or female. It is thus in contrast to the known connectors and devices instead of two differently ausgestalteter connecting elements according to the invention only a single design of the connecting element needed, which is universally applicable.

Preferably, the connecting element according to the invention is designed for quick, easy, convenient, tool-free and stable assembly of furniture parts. In particular, such a quick, easy assembly is advantageous in the construction of furniture at exhibitions or fairs. In order to enable equally fast, easy, convenient and tool-free disassembly of the furniture parts, the male part and the female part of the connecting element according to the invention are particularly preferably formed detachable from each other.

The invention enables a significant simplification of the design, manufacturing, storage and installation of the connecting elements and thus a significant cost savings.

Advantageous embodiments of the invention are characterized in the subclaims.

According to a preferred embodiment of the connecting element according to the invention, in order to achieve at least largely non-positive and / or positive engagement of the mandrel-like male part with the sleeve-like female part a locking of the male part in the female part, an inner wall of the sleeve-like female part with an at least partially circumferential, groove-like recess and a peripheral surface of the male part with a shape of the recess at least largely adapted, formed in the recess lockable, bead-like ring. Advantageously, groove and ring are completely encircling and complementary to each other. As a result, the best possible cohesion of the parts is achieved when inserting the male part in the female part.

In a further preferred embodiment of the connecting element according to the invention, the connecting element comprises a transition piece, by which the mandrel-like male part and the sleeve-like female part of the connecting element connected to each other, preferably integrally connected, are. As a result, a simple and compact design of the connecting element according to the invention is obtained. The transition piece is preferably designed for fastening the connecting element to a component to be joined together with another component by means of the connecting element. In this case, such components are preferably furniture parts, the use of the connecting element according to the invention, however, is by no means limited to furniture parts, but on the installation of a variety of devices, facilities, facilities and the like extendable.

According to a further preferred embodiment of the connecting element according to the invention, the female part are connected to the transition piece and the transition piece with the male part of the connecting element in a mutually and to a longitudinal axis coaxial alignment with each other, preferably integrally connected. In this preferred embodiment, the female part, the transition piece and the male part are arranged along the longitudinal axis one behind the other and coaxially lined up to form a compact, sturdy construction element in which the male part faces towards one end of this orientation and the female part towards the other end of that orientation , As a result, a material-saving construction and ease of handling and assembly is possible because either the female part or the male part are easily accessible without mutual interference.

Advantageously, according to a further embodiment of the connecting element according to the invention, the female part, the transition piece and the male part of the connecting element with respect to the longitudinal axis designed at least substantially cylindrical. Preferably, the female part, the transition piece and the male part of the connecting element are designed completely cylindrical. As cylindrical is thereby, as for example in the Internet encyclopedia "Wikipedia" in the Internet appearance " http://de.wikipedia.org/wiki/Zylindrisch ", Entry read on 10.06.2013 at 11:16 clock, is given, according to the general definition designates a body of two parallel, flat, congruent surfaces, which are also called the ground and top surface, and a shell cylindrical surface, which is formed by parallel lines, is limited. Such a body is created by shifting a flat surface or curve along a straight line that is not in this plane. The surface or curve can have any desired configuration in the plane in which they lie. A cylindrical design is preferably selected in which the straight lines are perpendicular to the base and top surface of the cylinder, ie according to a straight cylinder. Particularly preferably, a circular cylindrical design is selected, which is created by displacement of a circle parallel to a straight line through the center of the circle, wherein the straight line is not in the plane of the circle. The best conditions arise in a design as a straight circular cylinder whose axis is perpendicular to the circular plane. Such a design is particularly compact and simple and allows a very easy and cost-effective production and assembly.

According to another embodiment of the invention, the connecting element is formed on an outer periphery of the transition piece and / or the female part with hook-type or nose-like latching elements. These locking elements make it possible in a simple and effective manner, that the connecting elements are inserted into recesses in a component to be assembled with another component and firmly anchored there. Such components are in a preferred application e.g. Furniture parts. The recesses, which each preferably receive a connecting element, are advantageously drilled, milled or otherwise mounted in the relevant component, e.g. already formed as a pressed part during its molding. Hooks or noses of the hook-type or nose-like latching elements are preferably designed in the form of a profiling which runs at least partially around the outer circumference of the connecting element and preferably at least almost completely.

The recesses, preferably bores or grooves, in the components to be joined, e.g. Furniture parts, for receiving the connecting elements are preferably dimensioned as follows. A longitudinal dimension of the recess, measured in the direction of the longitudinal axis of the connecting element used in the recess corresponds to at least almost the length of the connecting element in the direction of its longitudinal axis for a connecting element serving as a die, thus has such a degree that the connecting element exactly in the recess is included, ie is flush with a surface of the component, in which the recess is introduced, is positioned. For a connecting element serving as a male part, the relevant longitudinal dimension of the recess corresponds at least almost to the length of the connecting element in the direction of its longitudinal axis minus the length of the male part measured in this direction, that is to say to such an extent that the connecting element exactly matches the male part the recess is received, ie insofar flush with a surface of the component, in which the recess is introduced, is positioned, but - preferably exclusively - the male part protrudes from said surface of the component. A transverse dimension of the recess, preferably a diameter of said bore or milling, measured transversely to the direction of the longitudinal axis of the connecting element inserted into the recess, is preferably selected to be slightly smaller than the transverse dimension of the outer circumference of the connecting element in the region of the transition piece and / or the female part. This ensures that the connecting element in the recess assumes a tight fit and accordingly loads between the connecting element and the component are transferable.

In another embodiment of the invention, the connecting element is characterized in that at least the female part and / or the male part resiliently, i. elastically resilient deformable, are formed. In particular, for this purpose, the female part and / or the male part are made of resilient, ie. elastically resilient deformable, material, preferably plastic formed. In a one-piece design of the connecting element, this is at least almost complete, i. there are the male part, the transition piece and the female part of elastically resilient deformable material, preferably plastic. Thereby, the engagement of the male part of a first connecting element in the female part of a second connecting element on the molded therein groove-like recess and the bead-like ring is easily and precisely possible by the female part widened in this connection process according to the height of the bead or the male part corresponding to the depth of the groove-like recess is compressed or by both deformations are made at the same time. The dimensions of the groove-like recess and the bead-like ring and the elasticity of the material are matched for optimum engagement with the preferred insertion force and the required holding force of the connection.

According to another embodiment of the connecting element according to the invention, the male part and / or the transition piece on an at least substantially central recess, which is designed for receiving a stabilizing element. This central, preferably along the longitudinal axis of the connecting element extending recess is preferably formed as at least substantially cylindrical recess. Particularly preferably, a recess designed in this way is set up for receiving an at least largely cylindrical and advantageously rod-shaped or pin-shaped stabilizing element. By inserting such stabilizing elements, also referred to as cylindrical pins (eg cylindrical pins to DIN 6325 or toggle pins after DIN 1475 or tapered pins after DIN 1471 , in the fasteners is increased in a simple and effective way their rigidity.

In particular, three variants are provided. In the simplest variant, a cylindrical pin is inserted into the central recess of the male part and preferably at least also of the transition piece of a connecting element, the male part of which is used to be connected to the female part of another connecting element. By the toggle pin an increase in the stability of the male part is then achieved and in particular prevents damage to the material of the connecting element in the region between the male part and the transition piece. In a second variant is for stabilizing the connecting element, the female part is used to be connected to the male part of another connecting element, a toggle pin inserted into the central recess at least of the transition piece.

The third variant of the equipment of the connecting elements with stabilizing elements is formed by a combination of the first two variants. This variant is particularly advantageous when according to a preferred embodiment of the connecting element according to the invention, the substantially central recess in the transition piece has a bulge at least partially on its inner circumference for expanding the connecting element in the region of the transition piece during insertion of the stabilizing element in the substantially central recess. As a result of this bulge, which is preferably bead-shaped, in the central recess, the material of the connecting element is pressed radially outwards when a toggle pin is driven in, thereby widening the connecting element in the region of the transition piece. A recess, preferably a bore, of a component, e.g. Furniture part, inserted connecting element is pressed with its outer periphery with increased contact pressure against the wall of the recess and thereby has in the recess an even firmer seat.

A particularly preferred embodiment results from a combination of the configuration of the connecting element with the curvature encircling the inner circumference of the central recess in the transition piece and the hook formed on the outer circumference of the transition piece and / or the female part. nose-like locking elements. For this purpose, the hook-shaped or nose-like latching elements are preferably in the form of a circumferential outer circumference, preferably at least almost completely circumferential profiling, more preferably in the form of a circumferential arrangement of at least one upon expansion of the connecting element in the region of the transition piece during insertion of the stabilizing element in the substantially central recess expandable groove or at least one such incision and at least one, preferably tooth-like, profile, ie Profile ring, designed. As a result of the at least one groove or the at least one incision, the material cross section of the connecting element in the region of the transition piece is purposefully weakened, thus increasing the formability of the connecting element during expansion. As a result, the stabilizing element can be mounted more easily despite the high contact pressure of the connecting element against the wall of the recess and better toothing of the connecting element with the wall of the recess.

According to a preferred embodiment of the connecting element according to the invention at least one at least substantially aligned in the direction of the longitudinal axis, in particular slot-like recess is arranged in the transition piece. Also, this slot-like recess, referred to simply as a longitudinal slot, serves to facilitate the expansion of the connecting element in the region of the transition piece when introducing the stabilizing element in the substantially central recess in the sense described above.

The above object is thus achieved in an advantageous, preferred manner by the inventive combination of the connecting element described with a stabilizing element. In this case, connecting element and stabilizing element are prior to assembly of the connecting element in the component, e.g. Furniture part, separated from each other and are assembled after insertion of the connecting element in the component only by the subsequent assembly of the stabilizing element.

The above object is finally achieved by a plug connection, comprising two at least almost identical with a respective mandrel-like male part and a sleeve-like female part configured connecting elements of the type described, wherein the male part of a first of the connecting elements with the female part of a second of the connecting elements at least substantially force - Is connected and interlocking interlocking. The connecting elements are preferred completely identical. The fact that only a single design of a connecting element must be manufactured and kept, resulting in a great simplification of the production, warehousing and assembly, which bring about a considerable cost advantage.

As already explained above, the first of the connecting elements is in a first component, e.g. Furniture part, and the second of the connecting elements in a to be connected to the first component second component, e.g. Furniture part, used, i. secured in recesses which are incorporated in the components. When assembling the connecting elements engage the male part and the female part in particular snap into each other, whereby the strength and reliability of the connection, including the connection of the two components, e.g. Furniture parts, is increased.

The invention thus provides a connector or a plug-in system, for the assembly of components of the type described and is particularly suitable for the assembly of furniture. In the individual components, e.g. Furniture parts, are always the same constructed fasteners. These fasteners are inserted into each other.

Preferably, the recesses, in particular bores or millings, in the components to be joined, e.g. Furniture parts, designed to receive the connecting elements such that a serving as a die connecting element exactly exactly received in the recess of the component, i. is flush with the surface of the component, is inserted. A connecting element serving as a male part is preferably countersunk into the component except for the male part, so that only this male part projects out of the surface of the relevant component. As a result, the connector is no longer visible after assembly of the connectors, the components, e.g. Furniture parts are tightly joined, resulting in a very handsome, elegant, unobtrusive and solid connection of the components.

Brief description of the drawings

Embodiments of the invention are illustrated in the drawings and will be described in more detail below, wherein matching elements in all figures are given the same reference numerals and a repeated description of these elements is omitted. Show it:

1 a first embodiment of a connecting element according to the invention, reproduced in a sectional view along a longitudinal axis of the connecting element,

2 an illustration of the connecting element according to 1 in a partial section,

3 a schematic representation of the joining of two connecting elements according to 1 for producing a connector according to the invention,

4 an illustration of two connecting elements according to 1 which are connected to the connector according to the invention,

5 a first inventive combination of the first embodiment of the connecting element according to 1 with a first example of a stabilizing element,

6 a second inventive combination of the first embodiment of the connecting element according to 1 with a second example of a stabilizing element,

7 a dimensioning sketch of the first embodiment of the connecting element according to 1 .

8th a dimension sketch of the first and the second example of the stabilizing element according to 5 and 6 .

9 an illustration of the production of a connector according to the invention of two components, eg furniture parts, with connecting elements according to the first embodiment according to 1 and stabilizing elements 5 . 6 and 8th .

10 a dimensioning sketch of a recess for an inventive connecting element in a component, eg furniture part,

11 a second embodiment of a connecting element according to the invention, reproduced in a sectional view along a longitudinal axis of the connecting element, and a representation of producing a plug connection according to the invention of two components, eg furniture parts, with connecting elements according to this second embodiment in a combination with stabilizing elements 5 . 6 and 8th , and

12 a schematic sectional view of a completed connector with connecting elements according to the second embodiment.

Preferred embodiment of the invention

In 1 is a first embodiment of an inventive connecting element 100 in one along its longitudinal axis 101 guided longitudinal section reproduced. The connecting element 100 includes a mandrel-like male part 102 and a sleeve-like female part 103 passing through a transition piece 104 are integrally connected to each other. male part 102 , Female part 103 and transition piece 104 are each designed to be substantially cylindrical in themselves and together form a about the longitudinal axis 101 rotationally symmetrical construction element. male part 102 and female part 103 are dimensioned in particular in their length and their diameter such that for performing a plug connection, the male part of a first copy of the connecting element 100 at least largely force and in the example shown also form-fitting with the female part 103 a second copy of the connecting element 100 comes together. This is an inner wall 105 of the sleeve-like female part 103 with an at least in sections, but here preferably completely encircling, groove-like recess 106 formed, in particular in the form of a shallow groove with over the entire circumference of the inner wall 105 of the female part 103 constant, flat cross-section. The shape of the recess 106 at least largely adapted is a peripheral surface 107 of the male part 102 with one in the recess 106 lockable, bead-like ring 108 formed, the corresponding over the entire peripheral surface 107 of the male part 102 has a constant, flat cross-section. The connecting element 100 is formed overall of an elastically resilient plastic, so that the female part 103 and the male part 102 both are resiliently formed. This allows a male part 102 with a female part 103 when mating resilient and releasable lock into each other.

In the connection element 100 have the male part 102 and the transition piece 104 a central recess 109 on, which is configured to receive a stabilizing element and to have a substantially circular cylindrical cross-section. In the transition piece 104 is the central recess 109 deviating from the cylindrical cross section with a on its inner circumference 110 circumferential bulge 111 configured, which is designed here with a double frusto-conical shape. The bulge 111 serves to widen the connecting element 100 in the area of the transition piece 104 when introducing a stabilizing element, preferably a toggle pin, in the central recess 109 , as shown in more detail below.

Like the in 2 reproduced representation of the connecting element 100 out 1 in a partial section, where on the left side next to the longitudinal axis 101 an outside view of the connecting element 100 and on the right side along the longitudinal axis 101 Guided longitudinal section according to 1 is shown, even more clearly shows, is the connecting element 100 on an outer circumference 112 essentially the transition piece 104 and to a lesser extent also the female part 103 with hook or nose-like latching elements 113 educated. The connecting elements 100 are in a in a component, eg furniture part, mounted hole or milled recess, preferably of circular cylindrical shape and the outer circumference 112 adapted in diameter, can be used and anchored therein with the hook or nose-like Verrastungselementen 113 , Particularly preferred are the Verrastungselemente 113 in the form of an outer circumference 112 designed at least almost completely circumferential profiling to the most effective latching or snagging or clawing of the connecting element 100 to get with the said component. In this case, the hook or nose-like latching elements 113 alternately in both directions of the longitudinal axis 101 of the connecting element 100 to by the hooking or clawing the Verrastungselemente 113 in the component in these two directions as evenly as possible forces between the component and the connecting element 100 to be able to transfer.

3 shows a schematic representation of the process of connecting two connecting elements according to 1 for producing a plug connection according to the invention. It is in the female part 103 of the connecting element 100 the male part 102 another, to the connecting element 100 identical constructed connecting element 114 in the direction of the longitudinal axis 101 plugged in. The insertion movement is by an arrow 115 symbolizes.

In 4 are the two fasteners 100 and 114 according to 1 are configured connected to the connector according to the invention shown. The male part 102 further connecting element 114 grabs his ring 108 frictional and positive locking in the groove 106 of the female part 103 of the connecting element 100 , The male part 102 of the connecting element 100 and the female part 103 further connecting element 114 are unused in this connector.

5 shows a first combination of the first embodiment of the connecting element 100 to 1 with a first example of a stabilizing element 116 , This first stabilizing element 116 is designed as a so-called toggle pin, ie as a circular cylindrical pin, preferably made of metal, in particular steel. Such toggle pins are advantageous as standardized construction elements according to DIN 1475 universally and economically available. The toggle pin 116 is in the central recess 109 of the male part 102 and the transition piece 104 inserted, whereas the die part 103 remains free. This combination of connecting element 100 and toggle pin 116 is preferably used as a template. As will be explained in more detail below, it is also not necessary that the toggle pin 116 in the central recess 109 in the area of the male part 102 is guided.

6 shows a second combination of the first embodiment of the connecting element according to 1 with a second example of a stabilizing element. The connecting element is here as in the 3 and 4 with the reference number 114 designated. The second stabilizing element is denoted by the reference numeral 119 referred to and in turn formed as a so-called toggle pin. The toggle pin 119 is in the central recess 109 of the male part 102 and the transition piece 104 inserted and also extends through the mold part 103 completely through. This combination of connecting element 114 and toggle pin 119 is preferably used as a patrix. For this it is advantageous that the toggle pin 119 the central recess 109 in the area of the male part 102 at least almost completely fills, because thereby the stability of the connecting element 114 in the area of the male part 102 and further in the region of the transition between the male part 102 and the transition piece 104 is optimally increased.

In the illustration according to 5 and 6 are the bulge 111 for widening the connecting element 100 respectively. 114 in the area of the transition piece 104 when inserting the toggle pin 116 respectively. 119 in the central recess 109 serves, and the toggle pin 116 respectively. 119 shown overlapping each other. The thus made clear overlapping space area 117 between the transition piece 104 or the bulge 111 and the toggle pin 116 respectively. 119 denotes material volume of the connecting element 100 respectively. 114 , which actually when inserting the toggle pin 116 respectively. 119 in the central recess 109 of the connecting element 100 respectively. 114 with respect to the longitudinal axis 101 is pushed radially outward and thereby in the 5 and 6 only by arrows 118 symbolized, but not pictorially shown widening of the connecting element 100 respectively. 114 in the area of the transition piece 104 causes.

The 7 and 8th show dimensioning sketches of the first embodiment of the connecting element 100 according to 1 , in the same way applicable to the further connecting element 114 , as well as the first and the second example of the stabilizing element 116 and 119 according to 5 and 6 , Therein are the total length 120 of the connecting element 100 respectively. 114 , which in the illustrated embodiment coincides with the length of the second stabilizing element 119 , ie the second toggle pin, the outer diameter 121 of the connecting element 100 respectively. 114 that is the outer diameter of the female part 103 or the transition piece 104 without expanding 118 corresponds to the outside diameter 122 of the male part 102 , synonymous with the inner diameter of the female part 103 , the inside diameter 123 the central recess 109 in the male part 102 and in the transition piece 104 that matches the outside diameter of the thumbtacks 116 and 119 matches the sum 124 the lengths of the male part 102 and the transition piece 104 , the sum 125 the lengths of the female part 103 and the transition piece 104 as well as the length of the first toggle pin 116 entered. The listed lengths are in the direction of the longitudinal axis 101 of the connector 100 respectively. 114 measured, the diameters are measured at right angles to it.

In a preferred dimensioning example, the following dimensions are selected: overall length 120 14 mm outer diameter 121 12 mm outer diameter 122 9 mm Inner / Outer diameter 123 5 mm length total 124 9 mm length total 125 9 mm length 126 8 mm Length of the male part 102 5 mm Length of the female part 103 5 mm Length of the transition piece 104 4 mm

This dimensioning is particularly preferably chosen for fasteners and toggle pins that are used to connect furniture parts.

In the right half of the 9 is an illustration of the production of a connector according to the invention of two components 127 . 128 , eg furniture parts, with fasteners 100 respectively. 114 according to the first embodiment according to 1 and stabilizing elements 116 respectively. 119 to 5 . 6 and 8th while the left half of the 9 shows the completed connector. This is in the components 127 . 128 one recess each 129 , preferably in the form of a bore or milling, introduced, as shown in the dimensioning sketch according to 10 is shown schematically in longitudinal section. The recess 129 is circular cylindrical and thus easily manufactured and the contour of the connecting elements 100 . 114 customized. The diameter 130 the recess 129 agrees with the outside diameter 121 of the connecting element 100 respectively. 114 match. The depth 131 the recess 129 is the use of the connecting element 100 as a die or the connecting element 114 adapted as a patrix. For the matrix 100 is the depth 131 the recess 129 equal to the total length 120 of the connecting element 100 chosen, and for the patrix 114 is the depth 131 the recess 129 equal to the sum 125 the lengths of the female part 103 and the transition piece 104 selected. This will ensure that the die 100 completely in the first component 127 dips, whereas the patrix 114 only with the female part 103 and the transition piece 104 in the second component 128 dips and thus there the Patrizenteil 102 still over the surface in question 132 of the second component 128 protrudes.

By this dimensioning of the recess 129 sit the fasteners 100 respectively. 114 already without the toggle pins 116 respectively. 119 after insertion into the recesses 129 in it play free. Now in the next step, the toggle pins 116 respectively. 119 into the central recesses 109 the connecting elements 100 respectively. 114 introduced, ie driven, the latter expand in the area of their transition pieces 104 by lateral pressing out of the bulges 111 on. By this expansion 118 become the locking elements 113 against the walls of the recesses 129 in the components 127 . 128 pressed and interlock with the material of the components 127 . 128 or jam at least in the recesses 129 , This results in a very tight fit of the fasteners 100 respectively. 114 in the recesses 129 of the components 127 . 128 , resulting in high tensile forces between the fasteners 100 respectively. 114 and the components 127 . 128 can be transmitted. By choosing the depth 131 the recesses 129 is also achieved that the components 127 . 128 in the assembled state of the connector are close to each other and thus a very shapely connection of the components 127 . 128 is created, in which the fasteners 100 . 114 from the outside are no longer visible.

From the representation of 9 is also evident that it is at the die 100 is not necessary, the toggle pin 116 the central recess 109 in the area of the male part 102 to be completely filled, as there are no or only small direct forces from the first component 127 on the die 100 or from this on the patrix 114 act. However, the toggle pin causes 116 here an additional stabilization of the connecting element 100 ,

11 shows a second embodiment of a connecting element according to the invention, designated by the reference numeral 200 and shown in a sectional view along the longitudinal axis 101 of the connecting element 200 , As well as an illustration of the production of a connector according to the invention of two components 127 . 128 , For example, furniture parts, with a first and another of these fasteners 200 and 214 according to this second embodiment in combination with stabilizing elements 116 . 119 to 5 . 6 and 8th , Here are the left part of the 11 the fasteners 200 . 214 after insertion into recesses, in particular holes or milled grooves 129 , the components 127 . 128 but before the introduction of the stabilizing elements 116 . 119 , shown in a kind of exploded view. In the right part of the 11 are the fasteners 200 . 214 after introduction of the stabilizing elements 116 . 119 shown. 12 shows a schematic sectional view of a completed connector with the connecting elements 200 . 214 according to this second embodiment.

The second embodiment of the connecting element 200 . 214 differs only in the design of its Verrastungselemente 213 on its outer circumference 212 , The rest of the design and the design of the stabilizing elements as toggle pins 116 . 119 as well as the design of the recesses 129 in the components 127 . 128 corresponds to the first embodiment of the connecting element 100 . 114 , On the directed thereto, preceding descriptions of the first embodiment of the connecting element 100 . 114 is referred to.

At the connecting element 200 respectively. 214 are the hook or nose-like latching elements 213 also here in the form of an outer circumference 212 designed completely circumferential profiling. This profiling includes one on the outer circumference 212 tangential circumferential groove 2131 or a circumferential cut in the material of the transition piece 104 and at the edges of each a tooth-like from the outer periphery 212 protruding profile ring 2132 ,

When expanding 118 of the connecting element 200 in the area of the transition piece 104 by the introduction of the stabilizing element, ie the toggle pin 116 respectively. 119 , in the central recess 109 becomes the groove 2131 spread and become the tooth-like from the outer circumference 212 protruding profile rings 2132 radially with respect to the longitudinal axis 101 outwards against the wall of the recess 129 pressed. As a result, a clawing occurs here with the material of the components 127 . 128 , Due to the expandable grooves or cuts the material cross-section of the connecting elements 200 . 214 in the area of the transition piece 104 deliberately weakened and so the formability of the fasteners 200 . 214 when expanding 118 elevated. This will have the effect of increasing the rigidity of the fasteners 200 . 214 through the bulges 111 in the area of the transition piece 104 compensated and are the stabilizing elements, ie the toggle pins 116 . 119 , easier to assemble, since the expansion of the connecting element 200 . 214 in the area of the transition piece 104 during insertion of the stabilizing element 116 . 119 in the central recess 109 is relieved.

Further improving the moldability of the connecting elements both after the first 100 . 114 as well as according to the second embodiment 200 . 214 in the area of the transition piece 104 can be achieved by that in the transition piece 104 at least one at least substantially in the direction of the longitudinal axis 101 aligned, in particular slot-like recess is arranged. These recesses are not shown in the drawing.

In summary, the present invention is a connector with the particular furniture in a very simple manner and thus very flexible, and in particular without additional tools up and can be dismantled, and to fasteners for producing such a connector. This connector is not visible in the assembled state of the furniture. It engages with a simple telescoping and offers by the design of the male part with the bead-like ring and the female part with the complementary recess such a firm connection that the furniture parts are sufficiently fixed and provide stability. Although this connection must be overcome when separating the furniture parts, but provide the Verrastungselementen on the outer circumference of the connecting elements by a toothing with the furniture enough support that required for said separation of the forces can be passed from the furniture parts to the connecting elements without release the fasteners from the furniture parts.

In an advantageous embodiment of the connecting element according to the invention, the transition piece, with which the anchoring of the connecting element in the component, preferably wooden component, in particular furniture part is carried out, and preferably only this transition piece with a longitudinal gap divided into two halves. Thereby, if at the first mounting of the connecting element in the central recess a toggle pin, i. a metal bolt is fixed, the two halves spread outwards, and the teeth on the outer circumference of the connecting element acts as an anchor in the wood. The latching elements are arranged along the circumference of the connecting element are aligned in one of the preferred embodiments alternately to opposite directions of the longitudinal axis of the connecting element. Therefore, the anchoring acts against tensile and compressive forces.

The material of the connector is advantageous in particular a plastic that guarantees the flexibility of repeated use. The toggle pin, also referred to as a center bolt, made of metal serves for a spreading and thus fixing the connecting element in the furniture part, on the other hand, but also the inclusion of the shear forces that occur when the furniture parts not only in the direction of the longitudinal axis of the connecting elements, but also Transversely to each other with forces are applied.

• • Es handelt sich um eine Steckverbindung bzw. ein Verbindungselement für ein Möbelstecksystem, das ohne Verwendung von Werkzeugen das Aufund Abbauen von Möbeln zulässt, d.h. die Steckverbindung lässt sich werkzeuglos ohne weiteren Aufwand herstellen und wieder lösen und ist dadurch wiederholt verwendbar.
• • Die Handhabung ist äußerst einfach, da die Möbel ohne zusätzliche Arretierungen, Querbolzen oder weitere Teile aufgebaut und verwendet werden.
• • Es wird nur eine runde Bohrung bzw. Einfräsung für den Einbau des Verbindungselements in das Möbelteil benötigt.
• • Es handelt sich bei dem erfindungsgemäßen Verbindungselement bzw. der erfindungsgemäßen Steckverbindung um einen Möbelbeschlag, der im zusammengebauten Zustand nicht sichtbar ist.
• • Es handelt sich um eine Steckverbindung, die allein durch ihre aufeinander abgestimmten Maße und ihren inneren Aufbau den Möbelteilen sehr starken Halt und ausgezeichnete Fixierung bietet.
• • Durch die bei dem erfindungsgemäßen Verbindungselement am Außenumfang angeordneten, in entgegengesetzte Richtungen weisenden und wirkenden, zur Verzahnung dienenden Verrastungselemente sind die Steckverbindungen der Möbelteile gegen Beschädigungen durch Kräfte, die beim mehrmaligen Auf- und Abbau von Möbeln auftreten, wirksam gesichert.
• • Die erfindungsgemäßen Steckverbindungen können auch in Decken, z.B. Raumdecken, oder freitragend senkrecht verbaut werden.

The connecting elements according to the invention and the connector according to the invention are characterized by the following features and advantages:

• • It is a plug-in connection or a connection element for a furniture connector system that allows the assembly and disassembly of furniture without the use of tools, ie the connector can be without tools and without additional effort and solve again and is therefore repeatedly used.
• • The handling is extremely simple as the furniture is assembled and used without any additional locks, cross bolts or other parts.
• • Only a round hole or cut-in for the installation of the connecting element in the furniture part is required.
• It is in the connecting element according to the invention or the connector according to the invention is a furniture fitting, which is not visible in the assembled state.
• • It is a plug-in connection, which offers the furniture parts very strong hold and excellent fixation only by their coordinated dimensions and their internal structure.
• • By the connecting element according to the invention arranged on the outer circumference, pointing in opposite directions and acting, serving for toothing Verrastungselemente the plug-in connections of the furniture parts against damage caused by forces that occur in the repeated assembly and disassembly of furniture, effectively secured.
• The plug connections according to the invention can also be installed vertically in ceilings, eg ceilings, or cantilevered.

• • ist die Fertigung der Verbindungselemente vereinfacht und verbilligt, da sich für die eine einzige Sorte von Verbindungselementen automatisch größere Serien ergeben, und eignet sich das Verbindungselement vorteilhaft für die industrielle Produktion,
• • ist die Montage vereinfacht, da nur eine einzige Bauform der Verbindungselemente bereitstehen, d.h. an den Montageplatz geliefert und dort verfügbar sein muss,
• • ist die Handhabung vereinfacht, da das Montagepersonal bei Bereitstellen der Verbindungselemente in jedem Fall das richtige Material zur Hand hat, d.h. das "Produkt am Mann" ist in jedem Fall das richtige,
• • ist die Logistik vereinfacht und verbilligt, da die Stückzahlenkalkulation und Mengenplanung bei der Lagerhaltung wirtschaftlicher wird und sich die Handhabung durch Vorhalten nur einer Sorte von Verbindungselementen vereinfacht, was auch für den Transport gilt, wodurch auch die Umweltbilanz des erfindungsgemäßen Verbindungselements verbessert wird, und
• • ist eine günstigere Preispolitik möglich, da die Abnahme eines Produkts in größeren Stückzahlen wirtschaftlicher und im Vertrieb besser zu verhandeln ist als die Lieferung mehrerer unterschiedlicher Sorten von Teilen in entsprechend kleineren Stückzahlen.

Characterized in that for the plug connection according to the invention only a single type, ie design, of a connecting element is required, which can be used both as a die and as a male,

• The manufacture of the connecting elements is simplified and cheaper, since a single type of connecting element automatically results in larger series, and the connecting element is advantageously suitable for industrial production,
• • assembly is simplified as there is only one type of connector available, ie delivered to the assembly site and available there,
• • the handling is simplified, since the assembly personnel always have the right material at hand when providing the connecting elements, ie the "product on the man" is in any case the right one,
• • The logistics is simplified and cheaper, since the unit costing and quantity planning in warehousing is more economical and simplifies the handling by providing only one type of fasteners, which also applies to the transport, whereby the environmental balance of the connecting element according to the invention is improved, and
• • A more favorable price policy is possible because the purchase of a product in larger quantities is more cost-effective and easier to negotiate in distribution than the delivery of several different types of parts in correspondingly smaller quantities.

The connecting element according to the invention is a small, lightweight product preferably made of plastic, which already has a high stability with optimal dimensioning by its small diameter. Predominantly, preferably exclusively for the necessary absorption of possibly occurring shear forces, the toggle pin is additionally used as the metal core, which at the same time then assumes the function of spreading and thus the anchoring. Thus, the lowest possible weight of material and thus low transport costs and a favorable environmental balance with the greatest possible stability by utilizing the power absorbed by the toggle pin is achieved for this fastener.

Preferred application examples of the connector according to the invention are in furniture and there especially for any kind of tables, shelves and cabinets, which can be mounted using the invention, for example, very simple and customer-friendly at home. The invention is also particularly recommended for the fair, for exhibitions and temporary market events, for which there is a significant reduction in the construction and dismantling of furniture. Further areas of application are shop fitting or merchandising, where frequent redesign of retail space is desired. In particular, by the ease of redesigning furniture, merchandise presentation tables and possibly also of individual goods carriers on plug-in walls and the like, it is also possible, the Redesign premises with little staffing. Due to the simplicity of the connector according to the invention eliminates the preparation for the furniture structure. Therefore, a conversion can happen by the way and by interruptions in the conversion work is no new initial effort such as clearing and re-drawing tools, etc.

When using the connectors according to the invention also results in a security aspect. The barely visible connecting elements can be used to fix stacked furniture or furniture parts, ensuring safe storage. Also, e.g. different furniture shelves are combined in new variants.

The plastics from which the connecting elements according to the invention are made can be color-matched to the furniture parts to be joined. The connecting elements according to the invention can thus be easily adapted to current fashion directions without additional design effort. The plug-in system designed with the plug connections according to the invention can be extended with various accessories, e.g. in the field of merchandise presentation, for furniture feet, by decorative accessories, and the like.

The plug-in system could also be equipped with different sizes of adapter pieces, whereby e.g. Furniture feet can be adapted for different surfaces, so that e.g. Furniture can be placed on stairs, in the preparation of an adaptation to clad pipes or ducts, which must be considered in shopfitting, can be made, etc.

LIST OF REFERENCE NUMBERS

100

 Connecting element (first embodiment)

101

Longitudinal axis of 100 / 114 / 200 / 214

102

Patrizenteil of 100 / 114 / 200 / 214

103

Female part of 100 / 114 / 200 / 214

104

Transition piece from 100 / 114 / 200 / 214

105

Inner wall of 103

106

Recess in 105

107

Peripheral surface of 102

108

Wulstartiger ring on 107

109

Central recess in 102 . 104 from 100 / 114 / 200 / 214

110

Inner circumference of 109

111

Buckle on 110

112

Outer circumference of 100 / 114 ( 103 . 104 )

113

Latching elements on 112

114

 Further connecting element (first embodiment)

115

 arrow

116

 First example of a stabilizing element (toggle pin)

117

Overlap space area between 111 / 104 and 116 / 119

118

Arrows (expanding from 100 / 114 In the range of 104 )

119

 Second example of a stabilizing element (toggle pin)

120

Total length of 110 / 114 = Length of 119

121

Outside diameter of 100 / 114 respectively. 103 respectively. 104 without expanding

122

Outside diameter of 102 = Inside diameter of 103

123

Inside diameter of 109 = Outside diameter of 116 / 119

124

Sum of the lengths of 102 and 104

125

Sum of the lengths of 103 and 104

126

length of 116

127

 First component (furniture part)

128

 Second component (furniture part)

129

Recess in 127 / 128 For 100 / 114 / 200 / 214

130

diameter of 129

131

Depth of 129

132

Surface of 128

200

 Connecting element (second embodiment)

212

Outer circumference of 200

213

Latching elements on 212

2131

Groove as part of 213

2132

Profile ring as part of 213

214

 Another connecting element (second embodiment)

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

• DE 1625393 [0002]
• DE 7312808 U [0005]

Cited non-patent literature

• http://en.wikipedia.org/wiki/Cylindrical [0015]
• DIN 6325 [0019]
• DIN 1475 [0019]
• DIN 1471 [0019]
• DIN 1475 [0047]

Claims (12)

Connecting element ( 100 . 114 ; 200 . 214 ) for performing a plug-in connection by at least substantially non-positive and / or positive engagement of a mandrel-like male part ( 102 ) and a sleeve-like female part ( 103 ), each connecting element ( 100 . 114 ; 200 . 214 ) both with such a male part ( 102 ) as well as with such a template part ( 103 ) is trained. Connecting element ( 100 . 114 ; 200 . 214 ) according to claim 1, characterized in that for latching in the at least largely non-positive and / or positive engagement of the mandrel-like male part ( 102 ) with the sleeve-like female part ( 103 ) an inner wall ( 105 ) of the sleeve-like female part ( 103 ) with an at least partially circumferential, groove-like recess ( 106 ) and a peripheral surface ( 107 ) of the male part ( 102 ) with one of the shape of the recess ( 106 ) at least largely adapted, in the recess ( 106 ) lockable, bead-like ring ( 108 ) is trained. Connecting element ( 100 . 114 ; 200 . 214 ) according to claim 1 or 2, characterized in that the connecting element ( 100 . 114 ; 200 . 214 ) a transition piece ( 104 ), through which the mandrel-like male part ( 102 ) and the sleeve-like female part ( 103 ) of the connecting element ( 100 . 114 ; 200 . 214 ) connected to each other, preferably integrally connected, are. Connecting element ( 100 . 114 ; 200 . 214 ) according to claim 3, characterized in that the female part ( 103 ) with the transition piece ( 104 ) and the transition piece ( 104 ) with the male part ( 102 ) of the connecting element ( 100 . 114 ; 200 . 214 ) in a mutually and to a longitudinal axis ( 101 ) coaxial alignment with each other, preferably integrally connected, are. Connecting element ( 100 . 114 ; 200 . 214 ) according to claim 4, characterized in that the female part ( 103 ), the transition piece ( 104 ) and the male part ( 102 ) of the connecting element ( 100 . 114 ; 200 . 214 ) with respect to the longitudinal axis ( 101 ) are configured at least substantially cylindrical. Connecting element ( 100 . 114 ; 200 . 214 ) according to claim 3, 4 or 5, characterized in that the connecting element ( 100 . 114 ; 200 . 214 ) on an outer circumference ( 112 ; 212 ) of the transitional piece ( 104 ) and / or the female part ( 103 ) with hook-type or nose-like latching elements ( 113 ; 213 ) is trained. Connecting element ( 100 . 114 ; 200 . 214 ) according to one or more of the preceding claims, characterized in that at least the female part ( 103 ) and / or the male part ( 102 ) are formed resiliently. Connecting element ( 100 . 114 ; 200 . 214 ) according to one or more of the preceding claims, characterized in that the male part ( 102 ) and / or the transition piece ( 104 ) an at least substantially central recess ( 109 ) for receiving a stabilizing element ( 116 . 119 ) is configured. Connecting element ( 100 . 114 ; 200 . 214 ) according to claim 8, characterized in that the substantially central recess ( 109 ) in the transition piece ( 104 ) one at least partially on its inner circumference ( 110 ) circumferential bulge ( 111 ) for widening ( 118 ) of the connecting element ( 100 . 114 ; 200 . 214 ) in the area of the transitional part ( 104 ) when introducing the stabilizing element ( 116 . 119 ) in the substantially central recess ( 109 ). Connecting element ( 100 . 114 ; 200 . 214 ) according to claim 9, characterized in that in the transition piece ( 104 ) at least one at least substantially in the direction of the longitudinal axis ( 101 ), in particular slot-like recess is arranged. Connecting element ( 100 . 114 ; 200 . 214 ) according to claim 8, 9 or 10, characterized by a connection with a stabilizing element ( 116 . 119 ). Plug connection, comprising two at least almost identical with one each mandrel-like male part ( 102 ) and one sleeve-like female part ( 103 ) Connecting elements ( 100 . 114 ; 200 . 214 ) according to one or more of the preceding claims, wherein the male part ( 102 ) of a first of the connecting elements ( 100 . 114 ; 200 . 214 ) with the female part ( 103 ) a second of the connecting elements ( 100 . 114 ; 200 . 214 ) is connected at least largely non-positively and / or interlocking interlocking.

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