DE102020128180A1 - fastening system - Google Patents

Abstract

The invention relates to a fastening system, comprising at least one first holding element with at least one bulge and at least one second holding element with at least one indentation, which is shaped to complement the bulge of the first holding element in such a way that the bulge is secured by a movement in a first direction in the indentation can be inserted and a form fit between the bulge and indentation can be produced by a movement in a second direction, wherein the holding elements can be brought together in at least or precisely a first and a different, second orientation, preferably rotated by 180°, in such a way that the form fit is producible.

Description

The invention relates to a fastening system and a method for assembling a fastening system.

Such fastening systems are made, for example DE 102 18 713 C1 such as DE 10 2016 013 348 A1 famous.

The solutions there can achieve reliable attachment in a comparatively simple manner. In particular, however, the operability, while at the same time having a reliable or variable attachment, is considered to be in need of improvement.

It is the object of the invention to propose a fastening system that enables comparatively simple operation, if possible with reliable fastening at the same time. The attachment should continue to be able to be configured in particular as variably as possible. Furthermore, the object of the invention is to propose a corresponding method for assembling a fastening system.

The above object is achieved in particular by the features of claim 1.

In particular, the object is achieved by a fastening system, comprising at least one first holding element with at least one bulge and at least one second holding element with at least one indentation, which is formed in such a way that it is complementary (in particular at least in sections at least essentially the same shape) to the bulge of the first holding element such that the bulge can be inserted into the indentation by a movement in a first direction and a form fit between the bulge and indentation can be produced by a movement in a second direction. According to a first (preferred) aspect of the invention, the holding elements can be brought together in at least one (or exactly one) first and (possibly only) one (differing, preferably rotated by 180°) second orientation such that the form fit can be produced.

A deviating (second) orientation is to be understood in particular as meaning that the holding elements (positive fit) starting from a first angular position in relation to one another and further starting from at least one further (deviating) angular position in relation to one another, i.e. in particular when the holding elements relative to one another move out of the first angular position into the second angular position are rotated (turned), can be connected to one another. In this regard, for example, one of the holding elements can be understood as a (stationary) reference object, in relation to which the other holding element rotates (relatively). Specifically, for example, the second holding element can be arranged stationary, in which case the first holding element can then be connected to the second holding element either in a first or a second orientation (in particular rotated by 180°). Above all, this simplifies operability, which further increases safety. If, for example, the user holds the first holding element in his hands, he can do this in different (relative) orientations of the holding elements to one another (during or when initiating the connection of the same). Comparing this, for example, with the solutions according to DE 10 2016 013 348 A1 or DE 102 18 713 C1 (where the holding elements there can only ever be connected to one another in a relative orientation to one another), operation is simplified.

According to the first aspect and/or according to one of the following aspects, the fastening system preferably comprises at least one locking device, by which the (respective) form fit can be locked.

The locking device in turn preferably comprises a sliding element, wherein the sliding element is designed, according to the embodiment, to interact with a counter-structure on (at least) one of the holding elements in such a way that the movement in the second direction is brought about by bringing the sliding element into engagement with the counter-structure, in particular forced, will. The movement explained here (in the second direction) can be a movement over a certain range (e.g. at least 1 mm and/or at most 5 mm) or also a pressing movement, for example if before the action of the pushing element the form fit is already present (at least loosely).

The sliding element described here and/or any of the following described sliding elements can be (particularly movable, but possibly non-removable) part of one of the holding elements, particularly of the first holding element. However, the sliding element is preferably an independent component which can be removed from the respective (preferably all) holding elements of the fastening system at least in sections, if necessary completely. The (respective) sliding element can be designed in one piece, preferably monolithically, or be made up of several components, which can optionally be movable relative to one another, for example can be prestressed relative to one another. The (respective) sliding element can have a slope which is at an angle of at least 10°, preferably at least 20°, further forward preferably at least 45°, or at least 60° and/or at most 85° or at most 80°, in relation to an axial direction of the sliding element and/or a main surface of that holding element which has the corresponding counter-structure and/or the second direction. The (respective) sliding element can have an (axial) length of at least 1 cm, preferably at least 2 or at least 3 and/or at most 10 cm. An optional slope of the (respective) sliding element can extend over at least 10% and/or at most 50% or at most 30% of the (axial) length.

In general, the movement in the first direction and the movement in the second direction can be carried out by two (possibly immediately following) translatory movements. However, it would also be conceivable for a (translational) movement to first take place in the first direction and then (for example by sliding along a curved surface) further directions of movement (during the entire course of movement to produce the form fit) to be run through. In such a case, the second direction should preferably be understood to mean the direction that is present at the end of the process for producing the form fit.

In embodiments, the second direction may be perpendicular to the first direction. The first direction can in turn (at least essentially) be parallel to a direction of movement of a (the) sliding element or a corresponding plug-in sliding movement. A possible transverse movement of the sliding element due to the interaction of different inclined surfaces or the like should preferably not be taken into account here or the initial direction of movement should be understood as the direction of movement of the sliding element (for example from top to bottom). Taking into account a corresponding transverse movement, the movement of the sliding element can take place at least in sections in a direction that forms an angle of at least 10°, preferably at least 20°, more preferably at least 45°, or at least 60°, and/or at most 85° or at most 80° °, opposite the second direction.

The first direction can be directed at least essentially perpendicular to a main surface of at least one of the holding elements. Alternatively or additionally, the second direction can be directed at least essentially parallel to a main surface of at least one of the holding elements

The sliding element can interact with a corresponding (e.g. channel-shaped or rail-like, or at least essentially compact, e.g. round or square) recess (counterstructure) in one of the holding elements.

Furthermore, the sliding element can be passed through at least one holding element (and then, if necessary, interact with a corresponding structure on the other or further holding element to produce the connection). The sliding element can also be guided past one of the holding elements and then brought into engagement with a counter-structure on another or further holding element (to produce or arrest the positive connection).

An optional opening (for passing the sliding element through a holding element) can for example be between two or more bulges or indentations and/or on the side of one or more bulges/indentations or on the side of all bulges/indentations.

Particularly in the case of a non-central arrangement of the sliding element (for example within an opening arranged at the edge through one of the holding elements or even at the very edge of one of the holding elements - but in contact with it during the connection process), a counter-structure can be attached to a correspondingly different holding element on both Be arranged indentations or bulges sides of a group (of, for example, two or more).

According to a second preferred aspect of the invention, the object is achieved in particular by a fastening system, preferably according to the first aspect (but possibly also independently thereof), comprising at least one first holding element with at least one bulge and at least one second holding element with at least one indentation, the is formed complementary to the bulge of the first holding element that the bulge can be inserted into the indentation by a movement in a first direction and a form fit between the bulge and indentation can be produced by a movement in a second direction. At least one locking device is preferably provided, by means of which the respective form fit can be locked and which comprises a displacement device which is configured to displace the holding elements in relation to one another in order to produce the respective form fit, the displacement device preferably being movable at least in sections in the direction of at least one of the holding elements and thereby a movement of at least one of the holding elements into another, in particular the opposite, direction prompted. The displacement device is particularly preferably movable (at least in sections) in a direction which is (at least essentially) parallel (or antiparallel) to the second direction. In order to distinguish it from the above (first) locking device, the locking device described in this paragraph will be referred to below as the second locking device. This should not (mandatory) mean that the first locking device must also be provided. However, this may be the case. It is also conceivable that a (common) locking device has both the functionalities of the first locking device and those of the second locking device.

The second locking device preferably comprises a device that can be displaced by turning, such as a screw or an element (e.g. formed by a cylinder or at least comprising one) that can be displaced via a rotation by means of a link guide.

The second locking device can have a (particularly firmly formed) section of one of the holding elements, in particular a section which protrudes (for example at an edge) from the corresponding holding element and can be placed against an edge of the other holding element. In cross section, the retaining element with such a projection can be designed (at least essentially) L-shaped, for example, with one leg of the “L” forming the projection.

Particularly preferably, the above rotationally displaceable device (e.g. screw) is guided in the projection, so that the rotationally displaceable device can be displaced (by turning) relative to the projection. If the rotationally displaceable device (e.g. screw) hits an edge of the further holding element, a (relative) movement of the first holding element relative to the second holding element or a production (or at least locking) of the positive connection can take place.

In general, the first and second holding elements can be plate-shaped or strip-shaped (plate-like or strip-like). Each holding element (for example the first holding element) can have exclusively one or more bulges or exclusively several indentations. Alternatively, a corresponding holding element (for example the first or second) can also have both indentations and bulges.

The above-mentioned object is also achieved in particular by a fastening system according to a third aspect (preferably according to the first and/or second aspect), comprising at least one first holding element with at least one bulge and at least one second holding element with at least one indentation which is complementary in this way to the Bulge of the first retaining element is formed, that the bulge can be inserted into the indentation by a movement in a first direction and a form fit between the bulge and indentation can be produced by a movement in a second direction. According to the third aspect, the holding elements can preferably be moved towards one another to produce the form fit by at least one (preferably at least partially beveled) sliding element, wherein the sliding element is designed to interact with a counter-structure on one of the holding elements, preferably at least partially beveled, in such a way that the form fit can be produced, wherein the sliding element can be moved along a longitudinal direction of the counter-structure with only partial engagement with the counter-structure and complete engagement with the counter-structure and an associated fixing of the holding elements relative to one another is only possible at certain latching positions of the counter-structure.

Insofar as a bevel is mentioned here (above) and/or below, this should include planar inclined surfaces, but also other inclined structures (such as a surface of a cone or truncated cone). A slope can be designed as a straight slope (with a constant slope) or as a curved or other slope with a non-constant slope.

An advantage of the third aspect lies in particular in the fact that the two holding elements can be moved against one another in a simple manner in one direction (namely the longitudinal direction of the counter-structure) and thus relative positioning can be prevented (this movement being guided by a partial engagement and can therefore be done easily) and at the same time locking can (only) take place at predetermined positions, so that there is also (in the fully assembled state) a high resistance to forces that act parallel to the longitudinal direction.

The counter-structure is preferably designed as an elongate (in particular straight) structure in which individual latching positions are formed, for example, by frustoconical sections, preferably so that the sliding element can penetrate deeper into the counter-structure in the region of this corresponding latching position. The detent positions can be separated from one another, for example, by webs (in which case the webs are preferably configured in such a way that in the final state they offer resistance to forces which act parallel to the longitudinal direction). The counter-structure can have, for example, at least two or at least three or at least five, or 10 and/or at most 100 latching positions. The counter-structure can have a length of at least 1 cm, preferably at least 3 cm and/or at most 100 cm. A width of the counter-structure can be at least 2 mm, preferably at least 4 mm and/or at most 2 cm or at most 0.8 cm.

The above object is also achieved in particular by a fastening system according to a fourth aspect (preferably according to the first and/or second and/or third aspect), comprising at least one first holding element with at least one bulge and at least one second holding element with at least one indentation which is formed complementary to the bulge of the first holding element such that the bulge can be inserted into the indentation by moving in a first direction and a form fit can be produced between the bulge and indentation by moving in a second direction, the holding elements for producing the form fit can be moved towards one another by means of at least one sliding element, which is preferably at least partially beveled, with the sliding element being designed to interact with a counter-structure on one of the holding elements, preferably at least partially beveled, in such a way that the F form fit can be produced, the sliding element having a first and a second section, the second section being elastic (e.g. comprises or is formed by a spring) and/or is elastically connected to the first section (e.g. at least partly by means of a spring) such that the second section can be prestressed so that when it is at least partly in Conformity is brought to the counter-structure with this under at least partial relaxation of the prestress engaged. The (corresponding) spring can be a helical spring, for example.

An advantage of the fourth aspect is that due to the elastic design, the sliding element can snap into the counter-structure, so that the holding elements can be brought together and/or locked in a simple and intuitive manner

The features explained below can be fulfilled in the first and/or second and/or third and/or fourth aspect unless the context indicates otherwise.

The indentation can have an undercut on at least two sides (for example on at least two side walls or on two sides of a cross section, preferably perpendicular to the longitudinal direction). Alternatively or additionally, the indentation can be elongate. An elongate configuration is preferably to be understood as meaning that the length of the bulge is at least twice, preferably at least 5 times and/or possibly at least 10 times as long as it is wide (with a width in turn preferably being the maximum extent in one direction should be understood perpendicular to the longitudinal direction). In particular, the indentation is designed as a rail-like (in particular straight) structure. Alternatively or additionally, the indentation can be curved inwards at least in sections (preferably on two opposite sides), preferably curved, further preferably in the form of a segment of a circle in cross section. Overall, the indentation can be essentially circular in cross-section (however, preferably with a constriction or a neck in the region of access to the indentation, in which case this neck can also run straight). A bottom of the indentation is preferably flattened.

In embodiments, the bulge can have an undercut on only one side. Alternatively, the bulge can also have an undercut on two (or more) sides. The bulge can also be elongate (possibly with a dimensioning as described in connection with the indentation). Alternatively or additionally, the bulge can be formed at least in sections, in particular on only one side or on two opposite sides, outwardly curved and preferably curved, more preferably in the shape of a segment of a circle in cross section.

In particularly preferred embodiments, the bulge can be formed by a circular sector (preferably with a neck adjoining the circular sector), in particular such that the circular sector is straight on one side and forms an arc of a circle on the opposite side. In particular in combination with a circular indentation (which may be flattened at its base), a positive fit can be produced in a particularly effective and reliable manner.

In embodiments, the indentation is longer than the bulge, e.g. B. at least 2 times or at least 5 times as long, in particular such that the bulge within the (preferably rail-like) indentation is displaceable.

The sliding element can comprise at least one projection (and/or recess) or be formed by such. Alternatively or additionally, the sliding element can be at least partially formed by a screw and/or at least partially be formed as a cone or truncated cone, and/or at least partially be curved, preferably in cross section shaped like a segment of a circle, for example semicircular.

In general, the sliding element preferably has at least one slanted section (e.g. in the form of a slanted flat surface or a section of a cone or truncated cone), this slanted section preferably in turn being able to interact with a slanted section of a counter-structure such that when the sliding element is guided to the counter-structure results in a transverse movement.

The counter-structure can comprise at least one recess or be formed by such (the counter-structure can also comprise at least one projection or be formed by such). Alternatively or additionally, the counter-structure is elongate (for example at least twice, preferably at least 5 times as long as it is wide, with the width preferably being understood as the maximum extension in a direction perpendicular to the longitudinal direction). As an alternative or in addition, the counter-structure can have a plurality of locking positions, for example each at least partially conical or in the form of a truncated cone. Alternatively or additionally, the counter-structure can have a bevel at least in sections and/or be formed by a screw at least in sections and/or be formed as a cone or truncated cone at least in sections and/or be curved at least in sections, preferably in the form of a section of a circle in cross section, for example semicircular.

In at least one cross section (preferably at least one cross section perpendicular to a longitudinal direction), the counter-structure can have a bevel, preferably two opposite bevels, and/or be trapezoidal and/or in the direction of a base of the counter-structure (if this is designed as a recess ) taper.

The counter-structure can have at least one bevel (in particular in a cross section perpendicular to the longitudinal direction) which forms an angle of at least 10°, preferably at least 30°, more preferably at least 45° or at least 60°, and/or at most 85° or at most 80° , opposite a main surface (facing the respective other holding element) of that holding element on or in which the counter-structure is formed and/or opposite the second direction. A main surface is preferably to be understood as meaning that surface which immediately surrounds the counter-structure and/or that surface which makes up the largest surface area of the entire surface (facing the respective other holding element).

Preferably, the sliding element, the counter-structure and the at least two holding elements are designed and arranged (or can be arranged) in relation to one another in such a way that the sliding element engages in the same counter-structure with at least two different orientations of the holding elements relative to one another, in particular by 180°, in order to produce the form fit is bringable.

Alternatively or additionally, a plurality of counter-structures can be formed, with the sliding element engaging (or being able to) engage with a first of the counter-structures in a first orientation and engaging with the second counter-structure in the second orientation. In such a variant, the counter-structures can be arranged, for example, on a (respective) edge of a group (of, for example, at least two or at least four) indentations or bulges (e.g. opposite one another).

In the embodiments, a plurality of first and/or second holding elements can be brought together in a modular design with the respective other holding element.

Furthermore, according to the embodiment, the form-fitting connection of the holding elements can be released by returning the holding elements to their starting position.

Furthermore, at least one sliding element can be lockable and hold the holding elements in a form-fitting position.

The above-mentioned object is also achieved by a method for assembling a fastening system, in particular according to one of the preceding claims, comprising at least one first holding element with at least one bulge and at least one second holding element with at least one indentation, the bulge being held by a movement in a first direction is inserted into the indentation and a form fit between the bulge and the indentation is produced by a movement in a second direction, wherein the holding elements can be brought together in at least or precisely a first and a different, second orientation, preferably rotated by 180°, in such a way that the form fit can be produced, in at least one orientation, a bringing together and a production of the form fit takes place (optionally first a bringing together and a production of the form fit takes place in the first orientation, then a reorientation takes place and then in the second orientation a bringing together and a production of the form fit takes place).

The object is also achieved in particular by a method for assembling a fastening system, in particular the above fastening system and/or comprising the above method, the fastening system comprising at least one first holding element with at least one bulge and at least one second holding element with at least one indentation, the bulge is introduced into the indentation by a movement in a first direction and a form fit between the bulge and indentation is produced by a movement in a second direction, wherein the holding elements are moved towards one another to produce the form fit by at least one, preferably at least partially beveled, sliding element , wherein the sliding element is moved along a longitudinal direction of the counter-structure in the case of only partial engagement with the counter-structure and a full engagement with the counter-structure and an associated fixation of the Ha lteelemente takes place against each other at one of several locking positions of the counter-structure.

Further features of these aspects of the method can be found in the above description of the system and in the following. Functional information can be implemented as concrete process steps. Further independent method aspects of the invention result from the above first and/or second and/or third and/or fourth aspect, with the respective fastening system being used and the corresponding functional features being able to be carried out as method steps.

Further features emerge from the dependent claims.

• 1 eine Darstellung eines Befestigungssystems mit einem ersten Halteelement in zwei verschiedenen Orientierungen;
• 2 ein erfindungsgemäßes Befestigungssystem in einer schematischen Schnittansicht;
• 3 eine weitere Ausführungsform für ein erfindungsgemäßes Befestigungssystem in einer schematischen Schnittansicht;
• 4 eine weitere Ausführungsform eines erfindungsgemäßen Befestigungssystems in einer Schnittansicht;
• 5 ein Halteelement des Befestigungssystems gemäß 4 in einer Schrägansicht;
• 6 eine Schnittansicht einer weiteren erfindungsgemäßen Ausführungsform des Befestigungssystems;
• 7 eine Ansicht des Befestigungssystems gemäß 6 von oben;
• 8 eine Schnittansicht einer weiteren erfindungsgemäßen Ausführungsform für das Befestigungssystem;
• 9 eine Ansicht des Befestigungssystems von oben.

The invention is explained below with reference to embodiments and the accompanying figures. Here show:

• 1 a representation of a fastening system with a first holding element in two different orientations;
• 2 a fastening system according to the invention in a schematic sectional view;
• 3 a further embodiment of a fastening system according to the invention in a schematic sectional view;
• 4 a further embodiment of a fastening system according to the invention in a sectional view;
• 5 according to a holding element of the fastening system 4 in an oblique view;
• 6 a sectional view of a further embodiment of the fastening system according to the invention;
• 7 a view of the fastening system according to FIG 6 from above;
• 8th a sectional view of a further embodiment according to the invention for the fastening system;
• 9 a view of the fastening system from above.

In the following description, the same reference numerals are used for the same parts and parts with the same effect.

1 shows a first embodiment of the fastening system according to the invention in a sectional view.

The fastening system has a first holding element 10 and a second holding element 11 . The same first holding element 10 is drawn in two different orientations (once hatched and once without).

The second holding element has indentations 12 (here specifically two indentations) into which corresponding indentations 13 of the first holding element can be inserted by moving in a first direction according to arrow 14. By moving in a second direction according to the respective arrow 15 (whereby the one in the 1 left arrow 15 shows the direction for the hatched orientation of the first holding element and the right arrow 15 shows the direction for the non-binding orientation) a form fit can be established between the bulges and indentations 12 (in the sense that a movement is opposite to the first direction is blocked).

The indentations 12 and bulges 13 can each be embodied here as elongated (rail-like) structures. The bulges 13 can be open on at least one or both ends, so that the bulges 13 can also be inserted at the respective end in a direction perpendicular to the plane of the drawing or perpendicular to the first and second direction.

Instead of two bulges (and corresponding indentations), just one can also be used Indentation or bulge be provided or more than two indentations or bulges.

The bulges 13 preferably have a circular-sector shape in cross-section and are flat on one side (but can also be non-flat there, eg arc-shaped, in particular circular-arc-shaped) and (circular) arc-shaped on the other side . The indentations 12 are (at least essentially) circular in shape, but with a bottom surface being flattened. In other words, the indentations (in cross section) comprise a circular arc section on both of their sides. Furthermore, the indentations 12 can have at least one undercut 31 or preferably a neck 19 (constriction) on their end facing the bulges, which is at least as large as a corresponding width of the bulges 13, so that these can be inserted. The constriction is preferably at least 1.01 times, more preferably at least 1.1 times, even more preferably at least 1.2 times and/or at most 2 times as wide as the width of the bulge (in the corresponding cross section, preferably perpendicular to a longitudinal direction). The bulges can also have a (complementary) neck 20 which can be brought into abutment with the respective neck 19 in the connected state.

2 shows a sectional view of a further embodiment of the fastening system according to the invention, its differences or additions compared to the embodiment according to FIG 1 are explained below.

In this solution, the holding elements 10, 11 are drawn together to form a positive fit.

Here, too, the first holding element 10 can be connected to the second holding element 12 in two different orientations (differing from one another by 180°). A displacement device 16 (here in the form of a screw) is provided to lock a form fit, which can be displaced by rotation relative to the first holding element 11 (namely in particular a projection 17 of the same) (a corresponding threaded bore is preferably provided in the projection 17 for this purpose). By turning it in further (starting from the state according to 2 ) it is achieved that the displacement device 16 abuts against an edge 18 (peripheral surface or edge) of the second holding element, so that the bulges 13 of the first holding element 1 are locked in accordance with the indentations (positively).

3 shows a reversible fastening system with a sliding element 23 in the form of a locking bolt. Differences or additions to the embodiment after 1 are explained below.

To connect the holding elements 10 and 11, they are first plugged together. In the second holding element 11 there is a counter-structure 21 with a trapezoidal cross section, which can be designed, for example, as a groove that runs into the plane of the drawing or as a (tapering) bore.

When plugging in, a movable pin 22 (preferably beveled at its end) of a (spring-loaded) sliding element 23 (locking pin) is placed (under pressure), for example, on the beginning of a bevel 24 of the counter-structure 21 or on an adjacent section of a main surface 25 of the second holding element 11 ) and is pressed into a housing 26 of the sliding element 23. If the movable pin is brought sufficiently far into alignment with the counter-structure 21, the spring drives the pin into the counter-structure. This snapping in can then be used to produce and/or lock a form fit between indentations and bulges 12, 13 in an effective and simple, intuitive manner. The sliding element 23 or its movable pin 22 moves along the incline 24 and pushes (pushes) the holding elements 10, 11 together to form a (locked) form fit. To release the connection, the sliding element 23 (locking pin) must be pulled (for example at its end facing away from the counter-structure 21).

4 and 5 show a reversible fastening system with a cross-sectionally trapezoidal counter-structure 21 (which is specifically designed as a groove). Here, too, the holding elements 10, 11 are plugged into one another for their connection. According to the embodiment, a sliding element 23 has a central offset 27 to the counter-structure 21 (groove). The first holding element 10 can be guided (clamped) into the counter-structure 21 in the state shown or in the state turned through 180°.

A conical section 28 of a (particularly rigid, preferably monolithic) sliding element 23 slides (rubs) on a slope 24 of the counter-structure 21 by a screwing and/or sliding movement and pushes the holding elements 10, 11 together to form a positive fit. This (with appropriate dimensioning and arrangement) can also result in a (releasable) frictional connection (in particular also in one direction into the plane of the drawing and in the opposite direction), which can absorb high forces.

6 and 7 show a reversible fastening system with conical (frustum-shaped) Counterstructures 21. Here, too, the holding elements 10, 11 are plugged into one another. In 6 the sliding element 23 is in the retracted position.

The sliding element 23 has a central offset 27 to the respective counter-structure 21 (borehole), so that the first holding element 10 (in the initial state or after being turned over) can produce a clamping or a positive fit.

A screwing and/or sliding movement rubs (slides) a conical (truncated cone-shaped) section 28 (in plan view according to 7 is drawn black) along the respective counter-structure 21 and pushes the holding elements 10, 11 together to form a positive fit.

This also creates a (detachable) form fit in one direction into the plane of the drawing or in the opposite direction, so that high forces can be absorbed from all directions.

the 8th and 9 show a reversible fastening system with a counter-structure 21 in the form of an elongated hole, which has conical (truncated cone-shaped) holding positions 29 (holding holes) as latching positions.

The holding elements 10, 11 are plugged into one another. The sliding element 23 is initially in the retracted position (at least completely outside of the counter-structure 21).

The sliding element 23 has a central offset 27 in relation to the respective conical (truncated cone-shaped) locking position 29, so that the first holding element 10 (in the initial state or in the turned state) can produce a clamp.

By means of a screwing and/or sliding movement, the frustoconical section 28 rubs (slides) past or past the latching position 29 . into this and pushes the holding elements 10, 11 together to form a positive fit.

Protruding side wall sections 30 (webs) of the counter-structure 21 hold the sliding element 23 against lateral displacement (along the longitudinal direction of the counter-structure 21). There is a form fit here, which can also exert high forces in a direction perpendicular to the plane of the drawing 8th can record.

Another advantage here is that the sliding element 23 does not have to be (entirely) removed (or turned) from the corresponding counter-structure 21 in order to move the holding elements 10, 11 against one another (along the longitudinal direction of the counter-structure 21).

Reference List

10

first holding element

11

second holding element

12

indentation

13

bulge

14

Arrow

15

Arrow

16

shifting device

17

head Start

18

edge

19

throat

20

throat

21

counter structure

22

moving pen

23

sliding element

24

oblique

25

main interface

26

Housing

27

offset

28

conical section

29

Holding positions (locking positions)

30

sidewall section (web)

31

undercut

QUOTES INCLUDED IN DESCRIPTION

This list of documents cited by the applicant was 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.

Patent Literature Cited

• DE 10218713 C1 [0002, 0007]
• DE 102016013348 A1 [0002, 0007]

Claims (10)

Fastening system, comprising at least one first holding element (10) with at least one bulge (13) and at least one second holding element (11) with at least one indentation (12) which is shaped in such a way as to be complementary to the bulge (13) of the first holding element (10). that the bulge (13) can be inserted into the indentation (12) by a movement in a first direction and a form fit between the bulge (13) and indentation (12) can be produced by a movement in a second direction, characterized in that the Retaining elements (10, 11) can be brought together in at least or precisely a first and a different, preferably rotated through 180°, second orientation in such a way that the positive connection can be produced. fastening system claim 1 , characterized by at least one locking device, by which the respective positive connection can be locked, the locking device preferably comprising: a sliding element (23), the sliding element (23) preferably being designed in such a way with a counter-structure (21) on one of the holding elements (10 , 11) to cooperate such that the movement in the second direction is caused, in particular forced, by bringing the sliding element into engagement with the counter-structure (21). Fastening system, especially after claim 1 or 2 , comprising at least one first holding element (10) with at least one bulge (13) and at least one second holding element (11) with at least one indentation (12) which is shaped in such a way as to be complementary to the bulge (13) of the first holding element (10), that the bulge (13) can be inserted into the indentation (12) by a movement in a first direction and a form fit between the bulge (13) and indentation (12) can be produced by a movement in a second direction, characterized by at least one locking device, by means of which the respective form fit can be locked and which comprises a displacement device which is configured to displace the holding elements (10, 11) in relation to one another in order to produce the respective form fit, the displacement device preferably being at least partially in the direction of at least one of the support elements (10, 11) is movable and thereby a movement of at least one of the holding elements (10, 11) in a other, in particular the opposite direction caused. Fastening system, especially after claim 1 , 2 or 3 , comprising at least one first holding element (10) with at least one bulge (13) and at least one second holding element (11) with at least one indentation (12) which is formed in a manner complementary to the bulge (13) of the first holding element (10). that the bulge (13) can be inserted into the indentation (12) by a movement in a first direction and a form fit between the bulge (13) and indentation (12) can be produced by a movement in a second direction, characterized in that the Retaining elements (10, 11) can be moved towards one another to produce the positive connection by means of at least one sliding element (23) which is preferably beveled at least in sections, the sliding element (23) being designed in such a way that it has a counter-structure (21) which is preferably beveled at least in sections one of the holding elements (10) to cooperate that the form fit can be produced, wherein the sliding element (23) with only partial Eingrif f can be moved with the counter-structure (21) along a longitudinal direction of the counter-structure (21) and full engagement with the counter-structure (21) and an associated fixing of the holding elements (10, 11) relative to one another is only possible at certain latching positions of the counter-structure (21). is. Fastening system, in particular according to one of the preceding claims, comprising at least one first holding element (10) with at least one bulge (13) and at least one second holding element (11) with at least one indentation (12) which is complementary in this way to the bulge (13) of the first holding element (10) it is shaped such that the bulge (13) can be inserted into the indentation (12) by a movement in a first direction and a form fit between the bulge (13) and indentation (12) by a movement in a second direction can be produced, characterized in that the holding elements (10, 11) can be moved towards one another to produce the form fit by at least one sliding element (23), which is preferably bevelled at least in sections, the sliding element (23) being designed in such a way that it has one, preferably at least partially beveled, counter-structure (21) to cooperate on one of the holding elements (10) that the form fit h can be created, wherein the sliding element (23) has a first and a second section, the second section being elastic and/or being elastically connected to the first section in such a way that the second section can be pretensioned, so that when it brought at least partially into alignment with the counter-structure (21) is engaged with this with at least partial relaxation of the pretension. Fastening system according to one of the preceding claims, characterized in that the indentation (12): has an undercut (31) on at least two sides, and/or is elongate, and/or outwards at least in sections, preferably on two opposite sides arched, preferably curved, further preferably in the form of a segment of a circle in cross section; and/or the bulge (13): has an undercut (31) on only one side or on two or more sides, and/or is elongate, and/or at least in sections, in particular on only one side or on two opposite sides, curved outwards, preferably curved, more preferably in the form of a segment of a circle in cross section. Fastening system according to one of the preceding claims, characterized in that the sliding element (23): comprises at least one projection (17) or is formed by one, and/or is formed at least in sections by a screw, and/or at least in sections as a cone or is formed as a truncated cone, and/or is bent at least in sections, preferably in the form of a section of a circle, for example semicircular, in cross section; and/or the counter-structure (21): comprises at least one recess or is formed by such a recess, and/or is elongate, and/or has a plurality of latching positions, for example each at least partially conical or in the shape of a truncated cone, and/or at least partially a bevel has, and/or is formed at least in sections by a screw, and/or is formed at least in sections as a cone or truncated cone, and/or is curved at least in sections, preferably in the form of a segment of a circle, for example semicircular, in cross section. Fastening system according to one of the preceding claims, characterized in that the sliding element (23), the counter-structure (21) and the at least two holding elements (10, 11) are designed and arranged or can be arranged relative to one another in such a way that the sliding element fits into the same counter-structure (21) can be brought into engagement with at least two different orientations of the holding elements (10), in particular by 180°, relative to one another in order to produce the positive connection. Method for assembling a fastening system, in particular according to one of the preceding claims, comprising at least one first holding element (10) with at least one bulge (13) and at least one second holding element (10) with at least one indentation (12), the bulge (13) is introduced into the indentation (12) by a movement in a first direction and a positive fit is produced between the indentation (13) and indentation (12) by a movement in a second direction, the holding elements (10, 11) being at least or exactly a first and a different second orientation, preferably rotated by 180°, can be brought together in such a way that the form fit can be produced, with at least one orientation being brought together and the form fit being produced, optionally initially being brought together and being produced in the first orientation the form closure takes place, then a reorientation takes place and then, in the second orientation, they are brought together and the positive connection is produced. Method for assembling a fastening system, in particular according to one of the preceding ones Claims 1 until 8th and/or comprising the method according to claim 9 , wherein the fastening system comprises at least one first holding element (10) with at least one bulge (13) and at least one second holding element (10) with at least one indentation (12), the bulge (13) being formed by a movement in a first direction in the indentation (12) is introduced and a form fit between bulge (13) and indentation (12) is produced by a movement in a second direction, wherein the holding elements (10, 11) for producing the form fit are provided by at least one, preferably at least partially bevelled, Sliding element (23) are moved towards one another, with the sliding element (23) being moved along a longitudinal direction of the counter-structure (21) when it engages only partially with the counter-structure (21) and a full engagement with the counter-structure (21) and an associated fixing of the Retaining elements (10, 11) against each other at one of several locking positions of the counter-structure (21).

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