DE102018131200A1 - Bayonet connector, component assembly with this bayonet connector, a manufacturing process for the bayonet connector and a connection method for at least two components with this bayonet connector - Google Patents

Abstract

A one-piece male bayonet connector with which at least two components can be detachably connected to one another via an opening, which in a side view has a double-T-like shape consisting of a head, a central shaft extending therefrom and two diametrically extending from the shaft Extending radial webs, each having a fastener facing the head of the bayonet connector, so that in addition to a positive bayonet connection, a non-positive connection of the at least two components between the head and the fasteners of the radial webs can be produced.

Description

Field of the Invention

The present invention relates to a one-piece male bayonet connector, with which at least two components can be detachably connected to one another via one opening in each case without being destroyed. Furthermore, the present invention relates to a component assembly comprising at least a first and a second component, which is produced with the aid of the bayonet connector. In addition, the present invention includes a manufacturing method for this bayonet connector and a connecting method for the at least two components and the aforementioned bayonet connector.

Background of the Invention

In the prior art, it is a general technical problem to releasably connect at least two components to one another. This problem arises, for example, in vehicle construction, in which attachments, trim parts in the vehicle interior and covers in the engine compartment have to be releasably attached.

To connect two components, it is common, for example, to provide one component with a ball head pin, while the other component has a coupling part. This coupling part is fastened in an opening of the second component. A connection between the first component and the second component is established by snapping the ball head into the coupling part. Due to the longitudinal extension of the ball pin, this plug-in coupling does not always take up advantageous space. Such a plug coupling is for example in DE 20 2009 004 351 U1 described.

Furthermore, it is common in the prior art to connect two components using a screw clip. For this purpose, a dowel-like screw clip is arranged in the opening of a first component. A screw is then screwed into the screw clip of the first component through the opening of the second component in order to establish a connection. Appropriate constructions go out DE 20 2008 007 378 U1 as well as from US 2,788,047 forth. These arrangements have the disadvantage that two connecting means, namely the screw clip and a suitable screw, must be used to establish the connection between the at least two components. This requires a relatively high installation effort and the corresponding provision of the two connecting means.

It is therefore the object of the present invention to provide an effective connection possibility for at least two components, the production expenditure of which is limited and which also realizes a releasable connection.

Summary of the invention

The above object is achieved by a one-piece male bayonet connector according to independent claim 1, by a component assembly comprising at least a first and a second component and the bayonet connector according to independent claim 11, by a component assembly comprising a first component and the bayonet connector according to independent claim 12 , solved by a manufacturing method for the named bayonet connector according to the independent claim 15 and by a connecting method for at least a first component with a first opening and a second component with a keyhole using the said bayonet connector according to the independent claim 16. Advantageous refinements and developments of the present invention will become apparent from the following description, the accompanying drawings and the appended claims.

With the one-piece male bayonet connector according to the invention, at least two components can be connected to one another in a non-destructive manner via an opening. In a side view, the bayonet connector has a double-T-like shape consisting of a head, a central shaft extending therefrom and two radial webs extending diametrically from the shaft, each of which has a fastening means of the bayonet connector facing the head, so that a form-fitting connection Bayonet connection, the at least two components between the head and the fastening means of the radial webs can be fastened.

A basic configuration of the bayonet connector consists of the aforementioned head, from which the shaft extends centrally. The diametrically spaced radial webs are in turn attached to the shaft at a distance from the head. Because of this configuration, it is possible to connect at least two components to one another via an opening in each of them. For this purpose, the bayonet connector is inserted through both openings and fastened by turning it. In order to keep the fastening or connection effort low, this rotation of the bayonet connector comprises an angle of rotation that is less than 180 °. The rotation preferably leads to the at least two components to be connected to one another being clamped between the head and the radial webs. Since the shaft with the radial webs previously passes through a preferred keyhole in the second component, that is to say the component facing away from the head has been performed, the rotation leads not only to a preferred clamping of the two components, but also to a positive connection between the bayonet connector and the second component. The two components can be clamped if one of the components is compressible in the connecting direction of the bayonet connector or if a compressible seal is arranged between the components.

The bayonet connector must be rotated to disconnect the at least two components. The rotation can take place in the same or in the opposite direction compared to the connection rotation. The loosening does not damage the bayonet connector or the components. Accordingly, the connection is released without being destroyed. As soon as the bayonet connector has been turned back or forwards so far that the radial webs can pass through the keyhole in the second component, the bayonet connector can be removed from the two openings of the at least two components.

According to a preferred embodiment of the present invention, the two radial webs are rigid. This construction of the radial webs allows a force to be exerted on the second component facing away from the head in the direction of the head of the bayonet connector via the radial webs. This ensures that the two components to be connected are clamped between the radial webs and an underside of the head of the bayonet connector. Correspondingly, due to the configuration of the bayonet connector, the at least two components are held by a combined positive and non-positive connection.

According to a further preferred embodiment of the present invention, the two radial webs are L-shaped and a shorter L-leg comprises the fastening means on an end face facing the head. Furthermore, the fastening means is preferably a latching web, a hemisphere-like projection or a run-up slope which is not arranged parallel to an underside of the head.

First of all, the two radial webs have a certain longitudinal extent in the radial direction. This ensures that the radial webs on the one hand form a suitable shape for the keyhole to be traversed in the second component. On the other hand, this configuration also ensures that after the bayonet connector is rotated about its longitudinal axis, the radial webs or the entire bayonet connector can be positively locked on the second component. After this rotation, the radial webs can no longer pass through the keyhole in the second component.

While straight radial webs could also be used as radial webs at this point, it is also preferred according to the invention to use the L-shape. The fastening means, which establishes a connection with the adjacent second component after the rotation, is preferably located on the end face of the shorter L-leg facing the head. Because of the configuration of the radial webs, a snap-in connection or a frictional connection is preferably produced between the radial webs and the adjacent second component. For this purpose, the fastening means consists of a latching web, which preferably hooks in a recess or opening or in two spaces between adjacent latching ribs. According to a further alternative, the hemisphere-like projection is provided as the latching means. This preferably snaps into a bore or a depression in the second component, which faces the latching web. According to a further preferred embodiment of the fastening means on the radial webs, the end face facing the second component comprises a run-up slope. This preferred run-on slope is configured such that the connecting or fastening rotation of the bayonet connector about its longitudinal axis presses the run-up slope in a wedge-like manner against the adjacent surface of the second component. Depending on the size of the angle of rotation of the fixing rotation of the bayonet connector, the connecting force of the preferred frictional connection between the radial webs and the second component can thus be set. It is understood that when using bevels, the connection is loosened in the opposite direction of rotation than when a connection is made.

According to a further preferred embodiment of the present invention, the radial webs have a smaller radial extent than the head of the bayonet connector. This preferred configuration has the background that the shaft with radial webs must first be pushed through a first opening in the first component and subsequently through the keyhole in the second component. If the radial webs had the same radial extent as the head of the bayonet connector, the head of the bayonet connector could also be inserted through the first opening in the first component. Accordingly, it would not be possible for the head of the bayonet connector to be supported on the first component despite the presence of the first opening.

According to a further preferred embodiment of the present invention, the bayonet connector comprises at least one positioning web which extends from an underside of the head in the direction of the shaft of the bayonet connector. This positioning web is preferably spaced radially inward from a radial outside of the head and provides an axial undercut, preferably a latching hook, radially outward.

According to a preferred embodiment of the present invention, the positioning web serves to secure a pre-position of the bayonet connector in the at least one first component. This opens up the possibility that a first component can be provided with a preassembled bayonet connector for connection to a second component. In this way, assembly time can be brought forward, so that final assembly, that is to say the actual connection of the at least one first and second component using the bayonet connector, can take place in a shorter period of time.

According to a constructive embodiment, the positioning web with its axial undercut serves to latch preferably in the first component at the edge of the first opening. The bayonet connector is thus initially held in the first opening, even if no connection has yet been made between the first and the second component via the bayonet connector. Since the positioning web projects in the direction of the shaft of the bayonet connector from the underside of the head of the bayonet connector, it is suitably arranged to cooperate with the edge of the first opening of the first component or an area adjacent to the first opening of the first component. One type of interaction is that the positioning web engages over its axial undercut at the edge of the first opening, as has been described above. If the inner course of the first opening has projections arranged radially inwards or at least one projection directed radially inwards, then preferably the interaction of the positioning web with the at least one radial projection on the inside of the first opening provides for a latching connection which rotates the bayonet connector restricts or blocks its longitudinal axis. If two radial projections are preferably arranged on the inside of the first opening of the first component, it is also preferred that the at least one positioning web is snapped into this space between the two adjacent radial projections. In this way, the position, preferably a pre-position, of the bayonet connector is fixed, so that in this way the connection of the at least two components can be prepared using the bayonet connector.

According to a further preferred embodiment of the present invention, the positioning web provides a radially outward locking means with which rotation of the bayonet connector in a pre-position can be prevented. For this purpose, the positioning web is preferably constructed in a fork-like manner with two latching hooks separated by a space.

It has already been described above that a single positioning web can be locked between two radial projections on the inner course of the first opening of the first component. Alternatively, it is also preferred to provide only a radial projection on the inside of the first opening of the first component. This only one radial projection on the inside of the first opening interacts with a fork-like positioning bar. The fork-like shape results from two adjacent locking hooks, which are arranged next to each other like two prongs of a fork and protrude from the underside of the head towards the shaft. The distance between these two fork-like latching hooks is selected such that the radial projection on the inside of the first opening can engage in this intermediate space and can lock there. In this way, a desired pre-position of the bayonet connector in the first opening of the first component can also be defined and set. In this context, it is of course also preferred to provide a plurality of radial projections spaced apart from one another in the circumferential direction of the first opening. Each individual radial projection then corresponds to a preposition for the bayonet connector which is advantageous for a later connection of the at least two components in the first opening of the first component.

According to different preferred embodiments of the bayonet connector, this is made of plastic or metal. To produce the bayonet connector, it is therefore preferred to use an injection molding process for plastic and a metal die casting process for metal. According to different preferred configurations of the present invention, the bayonet connector is produced from aluminum in an aluminum die casting process or from zinc in a zinc die casting process. According to another alternative, the bayonet connector is manufactured from plastic using an injection molding process. Suitable materials would be, for example, thermoplastics, such as PPA GF50 or polyamide (PA).

The present invention also comprises a component assembly comprising at least a first and a second component and the bayonet connector described above in accordance with the different preferred embodiments. In this component assembly, the first component is arranged adjacent to the head of the bayonet connector and comprises a first opening. The second component has a keyhole, so that the head is supported on the first component, the shaft with the radial webs passes through the first opening and the keyhole and Radial webs on the second component are locked facing away from the head.

The present invention discloses a further component assembly comprising at least a first component and the bayonet connector according to one of the preferred embodiments described above, in which the bayonet connector is releasably locked to the positioning webs at an edge of a first opening of the first component.

With regard to this component assembly, it is preferred that the positioning web provides a locking means directed radially outward, with which rotation of the bayonet connector in a pre-position can be prevented. In addition, it is preferred that the positioning web is constructed in a fork-like manner with at least two latching hooks separated by at least one intermediate space and that a projection in or at the first opening of the first component is latched to the positioning web.

The present invention also discloses a manufacturing method of the bayonet connector as it is designed according to the above-described embodiments. The production method has the following steps: providing a mold that is suitable for injection molding with plastic or metal die casting and is designed to be complementary to the shape features of the bayonet connector according to one of the configurations described above, filling the mold with liquid plastic or liquid metal, curing the plastic or of the metal in the form and demolding of the hardened bayonet connector.

An injection molding process for plastic or a metal die casting process for metals, in particular aluminum, are preferably used to produce the bayonet connector. For this purpose, the shapes used in each case have the complementary features of the bayonet connector according to the preferred embodiments described above. Known process steps from plastic injection molding or metal die casting are used to manufacture the bayonet connector.

The present invention also discloses a connection method for at least a first component with a first opening and a second component with a keyhole using the above-described bayonet connector according to the different preferred embodiments. The connection method comprises the following steps: stacking the first and the second component so that the first opening and the keyhole are aligned with one another, inserting the shaft with the radial webs into the keyhole, rotating the bayonet connector about its longitudinal axis within the first opening and of the keyhole and holding, preferably clamping the first and the second component between the head and the radial webs of the bayonet connector.

In the context of the connection method according to the invention, it is preferred to provide the first component with a bayonet connector prepositioned in its first opening. It is also preferred to first position the first and the second component in a stacked arrangement such that the first opening in the first component is aligned with the keyhole in the second component. The bayonet connector is then preferably inserted through the first opening and the keyhole, so that the underside of the head of the bayonet connector is supported on the first component. As soon as the bayonet connector has been inserted into the mutually aligned first opening and the keyhole, the bayonet connector is rotated about its longitudinal axis. This rotation of the bayonet connector preferably comprises an angle of rotation of less than 180 ° and preferably a maximum of 90 ° about its longitudinal axis. With the help of this rotation, the radial webs are initially positioned in such a way that they no longer align with the keyhole of the second component. In this way, a positive connection between the bayonet connector and the at least two components is realized. The preferred rotation of the bayonet connector also serves to bring the preferred fastening means of the radial webs into interaction with the at least second component. This interaction consists, for example, of locking a fastening means provided as a locking means on the radial webs on the second component. In this way, in addition to the positive connection described above, an additional non-positive connection is preferably achieved between the bayonet connector and the at least two components.

Accordingly, it is preferred that the radial webs have locking projections facing the head, which each snap into a recess or an opening on the second component when the bayonet connector is rotated.

According to a further preferred embodiment, the radial webs have head bevels which clamp the first and the second component between the head and radial webs of the bayonet connector when the bayonet connector is rotated about its longitudinal axis.

Figure list

• 1 eine Seitenansicht einer ersten bevorzugten Ausführungsform des erfindungsgemäßen Baj onettverbinders,
• 2 eine perspektivische Ansicht des Bajonettverbinders gemäß 1 beim Einsetzen in die erste Öffnung des ersten Bauteils,
• 3 der Bajonettverbinder gemäß 1 eingesetzt in die erste Öffnung des ersten Bauteils,
• 4 eine Illustration der Befestigung des bevorzugten Bajonettverbinders am zweiten Bauteil mithilfe einer Drehung,
• 5 eine perspektivische Seitenansicht des Bauteilverbunds bestehend aus dem bevorzugten Bajonettverbinder, dem ersten Bauteil und einem zweiten Bauteil mit einem Schlüsselloch,
• 6 eine perspektivische Draufsicht auf den Bauteilverbund gemäß 5,
• 7 eine teilweise seitliche Schnittansicht des Bauteilverbunds gemäß 5, in dem der bevorzugte Bajonettverbinder in die erste Öffnung des ersten Bauteils eingesetzt und am Schlüsselloch des zweiten Bauteils verriegelt ist,
• 8 eine seitliche Ansicht einer weiteren bevorzugten Ausführungsform des erfindungsgemäßen Baj onettverbinders,
• 9 eine weitere Seitenansicht der bevorzugten Ausführungsform des Bajonettverbinders gemäß 8,
• 10 eine axiale Schnittansicht der bevorzugten Ausführungsform des Bajonettverbinders gemäß 8,
• 11 eine axiale Schnittansicht des bevorzugten Bajonettverbinders gemäß 9,
• 12 eine Seitenansicht eines bevorzugten Bauteilverbunds mit Hilfe des Bajonettverbinders gemäß 8,
• 13 eine perspektivische Ansicht des ersten Bauteils mit der ersten Öffnung und dem Bajonettverbinder gemäß 8,
• 14 eine perspektivische Ansicht des ersten Bauteils mit der ersten Öffnung, in die der Bajonettverbinder gemäß 8 eingesetzt ist,
• 15 eine Veranschaulichung der befestigenden Drehbewegung des Bajonettverbinders gemäß 8, nachdem dieser in das Schlüsselloch des zweiten Bauteils eingesetzt worden ist,
• 16 eine perspektivische Seitenansicht des Bauteilverbunds bestehend aus dem ersten Bauteil, dem zweiten Bauteil und dem Bajonettverschluss gemäß 8,
• 17 eine perspektivische Seitenansicht des Bauteilverbunds bestehend aus dem ersten Bauteil, dem zweiten Bauteil und dem Bajonettverbinder gemäß 8,
• 18 eine perspektivische Ansicht des Bajonettverbinders gemäß 8 oberhalb der stapelförmigen Anordnung aus erstem Bauteil und zweitem Bauteil, in der die erste Öffnung auf das Schlüsselloch des zweiten Bauteils ausgerichtet ist,
• 19 eine perspektivische Ansicht des Bauteilverbunds bestehend aus dem ersten Bauteil, dem zweiten Bauteil und dem darin eingesetzten Bajonettverbinder gemäß 8 in einer perspektivischen Ansicht seitlich von oben und
• 20 ein Flussdiagramm einer bevorzugten Ausführungsform des Verbindungsverfahrens und
• 21 ein Flussdiagramm einer bevorzugten Ausführungsform des Herstellungsverfahrens des Baj onettverbinders.

The preferred embodiments of the present invention are explained in more detail with reference to the accompanying drawing. Show it:

• 1 a side view of a first preferred embodiment of the bayonet connector according to the invention,
• 2nd a perspective view of the bayonet connector according to 1 when inserted into the first opening of the first component,
• 3rd the bayonet connector according to 1 inserted in the first opening of the first component,
• 4th an illustration of the attachment of the preferred bayonet connector to the second component by means of a rotation,
• 5 2 shows a perspective side view of the component assembly consisting of the preferred bayonet connector, the first component and a second component with a keyhole,
• 6 a perspective top view of the component assembly according to 5 ,
• 7 a partial side sectional view of the component assembly according to 5 , in which the preferred bayonet connector is inserted into the first opening of the first component and locked at the keyhole of the second component,
• 8th a side view of another preferred embodiment of the bayonet connector according to the invention,
• 9 another side view of the preferred embodiment of the bayonet connector according to 8th ,
• 10th an axial sectional view of the preferred embodiment of the bayonet connector according to 8th ,
• 11 an axial sectional view of the preferred bayonet connector according to 9 ,
• 12 a side view of a preferred component assembly using the bayonet connector according to 8th ,
• 13 a perspective view of the first component with the first opening and the bayonet connector according to 8th ,
• 14 a perspective view of the first component with the first opening into which the bayonet connector according 8th is used
• 15 an illustration of the fastening rotational movement of the bayonet connector according to 8th after it has been inserted into the keyhole of the second component,
• 16 a perspective side view of the component assembly consisting of the first component, the second component and the bayonet lock according to 8th ,
• 17th a perspective side view of the component assembly consisting of the first component, the second component and the bayonet connector according to 8th ,
• 18th a perspective view of the bayonet connector according to 8th above the stacked arrangement of the first component and the second component, in which the first opening is aligned with the keyhole of the second component,
• 19th a perspective view of the component assembly consisting of the first component, the second component and the bayonet connector used therein according to 8th in a perspective view laterally from above and
• 20th a flow diagram of a preferred embodiment of the connection method and
• 21st a flowchart of a preferred embodiment of the manufacturing method of the bayonet connector.

Detailed description of the preferred embodiments

The 1 8 and 9 show different preferred embodiments of the bayonet connector according to the invention 1 ; 1' . This consists of a head 10th ; 10 ' with a head top 12 ; 12 ' and a head underside 14 ; 14 ' . From the bottom of the head 14 ; 14 ' extends in a central position in relation to a surface of the underside of the head 14 ; 14 ' a shaft 20th ; 20 ' . From the shaft 20th ; 20 ' two radial webs extend in the radial direction 30th ; 30 ' . The two radial webs 30th ; 30 ' are preferably arranged opposite one another, that is to say diametrically to one another.

The radial webs 30th ; 30 ' serve the preferred intervention in a keyhole 90 . The keyhole 90 is in the second component B2 intended. By turning the bayonet connector 1 ; 1' in the keyhole 90 become the radial webs 30th ; 30 ' unlike the keyhole 90 aligned, so that a positive connection between the bayonet connector 1 ; 1' and the second component B2 arises.

The positive connection between the bayonet connector 1 ; 1' and the second component B2 with keyhole 90 can be designed with differently designed radial webs 30th ; 30 ' realize. This is explained in more detail below.

Based on the arrangement of the head 10th ; 10 ' , Shaft 20th ; 20 ' and radial webs 30th ; 30 ' is based on the 1 and 8th exemplarily recognizable that the bayonet connector 1 ; 1' characterized by a double-T-like structure. The double-T structure is in the 1 and 8th by a dashed line highlighted. The connecting transverse axis between the two legs runs parallel to the longitudinal axis L of the bayonet connector 1 ; 1' .

The 2nd and 13 each show the bayonet connector 1 ; 1' before the first opening 92 ; 92 ' of the first component B1 . The first opening 92 ; 92 ' is just chosen so large that the bayonet connector 1 ; 1' with the radial webs 30th ; 30 ' in the first opening 92 ; 92 ' can be inserted. The shaft then runs accordingly 20th ; 20 ' the first opening 92 ; 92 ' as it is in the 3rd and 14 is shown.

A length of the radial webs is preferred 30th ; 30 ' set such that a length of the two radial webs 30th ; 30 ' in combination with a shaft diameter of the shaft 20th ; 20 ' is smaller than an outer diameter of the head 10th ; 10 ' . This length configuration of the radial webs 30th ; 30 ' compared to the diameter of the head 10th is also based on the 1 and 8th clear.

The combined length of the radial webs 30th ; 30 ' with shaft 20th ; 20 ' is preferably smaller than the outside diameter of the head 10th ; 10 ' . The inside diameter of the first opening 92 ; 92 ' is preferably greater than the combined length of the radial webs 30th ; 30 ' with shaft 20th ; 20 ' but smaller than the outside diameter of the head 10th ; 10 ' . This ensures that the bayonet connector 1 ; 1' through the first opening 92 , 92 ' can be plugged in and subsequently the head 10th ; 10 ' on the first component B1 supports (see 3rd and 14 ).

According to the invention preferably extends from the underside of the head 14 ; 14 ' at least one positioning bar 40 ; 40 ' , preferably a plurality of positioning webs 40 ; 40 ' . According to the preferred embodiment of the 1 as well as 8 and 9 are on the bayonet connector 1 ; 1' two positioning bars arranged opposite each other 40 ; 40 ' intended.

The positioning bars 40 ; 40 ' extend towards the shaft 20th ; 20 ' from the bottom of the head 14 ; 14 ' . The positioning bars 40 ; 40 ' are radially outward from the shaft 20th ; 20 ' spaced apart. The preferred space between the positioning bars 40 ; 40 ' and the shaft 20th ; 20 ' enables the positioning bars to spring 40 ; 40 ' radially inwards. In addition, the positioning bars 40 ; 40 ' preferably radially inwardly spaced from the outer peripheral surface of the head 10th ; 10 ' arranged. This position ensures that the positioning bars 40 ; 40 ' inside the first opening 92 ; 92 ' are after the bayonet connector 1 ; 1' in the first opening 92 ; 92 ' has been used.

The positioning web has a radial outer side 40 ; 40 ' preferably an axial undercut. According to a preferred embodiment of the present invention, the axial undercut is formed by a radially outward locking hook 42 ; 42 ' educated. The positioning webs are preferred 40 ; 40 ' like this on the underside of the head 14 ; 14 ' arranged that they are the bayonet connector 1 ; 1' inside the first opening 92 ; 92 ' hold in a preposition. Correspondingly, there is a distance between the radial outer sides of two positioning webs arranged opposite one another 40 ; 40 ' preferably as large as an inner diameter of the first opening 92 ; 92 ' .

Is the bayonet connector 1 ; 1' in the first opening 92 ; 92 ' inserted, the axial undercut of the locking hook engages 42 ; 42 ' preferably on the side of the first component B1 at the head 10th ; 10 ' is turned away. In this way, the bayonet connector holds 1 ; 1' in the first opening 92 ; 92 ' firmly. Because the first component B1 , especially the edge of the first opening 92 ; 92 ' , is preferably between the axial undercut of the locking hook 42 ; 42 ' and the bottom 14 ; 14 ' Of the head 10th ; 10 ' held. The shaft protrudes 20th ; 20 ' with the radial webs 30th ; 30 ' below the first opening 92 ; 92 ' beyond the first component B 1, B1 '.

At the first opening 92 ; 92 ' is preferred on a component side facing away from the head, ie on one side on the first component B1 and turned away from the head 10th ; 10 ' of the bayonet connector 1 ; 1' , a partial or complete revolving franking 94 ; 94 ' intended. The franking 94 ; 94 ' reduces the thickness of the first component B1 in the edge area of the first opening 92 ; 92 ' . In addition, the franking has 94 ; 94 ' preferably a radial depth of sufficient size to engage and lock the locking hook 42 ; 42 ' in the franking 94 ; 94 ' to guarantee.

According to a preferred embodiment of the present invention, it is preferred on a radial inside of the first opening 92 ; 92 ' at least one radially inwardly projecting projection 96 , preferably at least two protrusions 96 to provide. The tabs 96 serve as a stop for the positioning bars 40 to turn the bayonet connector 1 in the first opening 92 to avoid (see 2nd ).

Another preferred embodiment looks at the radial inside of the first opening 92 ' a plurality of radial protrusions 96 ' in front. It is also preferred to have only one radial protrusion 96 ' on the inside of the first opening 92 ' to position the bayonet connector 1 ; 1' in the first opening 92 ; 92 ' to support.

The radial protrusions 96 ' act with a preferred embodiment of the positioning web 40 ' together. The positioning bridge 40 ' is preferably fork-like with at least two prong-like locking hooks 98 separated by a space 99 built up (see 8th , 15 and 18th ).

If the bayonet connector 1' into the opening 92 ' has been inserted, the locking hook of the positioning web locks 98 in the franking 94 ' . Around the bayonet connector 1' The bayonet connector is used to hold it in a defined preposition for later assembly 1' around its longitudinal axis L inside the first opening 92 ' turned. The rotation is preferably carried out until one of the projections 96 ' between the locking hooks 98 , so in the space 99 , snaps. This will pre-position the bayonet connector 1' related to the first opening 92 ' adjustable and detachably fixed.

To the first component B1 ; B1 ' and the second component B2 ; B2 ' with each other using the bayonet connector 1 ; 1' to connect, both components are first B1 ; B1 ' and B2 ; B2 ' stacked one above the other. The arrangement of the components B1 ; B1` , B2 ; B2 ' is such that the first opening 92 ; 92 ' over the keyhole 90 is positioned.

According to a first preferred connection alternative, the bayonet connector is 1 ; 1' in the first opening 92 ; 92 ' prepositioned as described above (step S1 ). According to a second preferred alternative, the two components are first B1 , B2 ; B1 ' , B2 ' arranged one above the other (step S2 ). Below is the bayonet connector 1 ; 1' through the first opening 92 ; 92 ' and the keyhole 90 the stacked arrangement of the components B1 , B2 ; B1 ' , B2 ' inserted (step S4 ).

The shaft passes through in this arrangement 20th ; 20 ' the first opening 92 ; 92 ' and the keyhole 90 as it is in the 4th , 5 , 7 and 14 , 15 , 17th is shown. Inside the first opening 92 ; 92 ' and the keyhole 90 becomes the bayonet connector 1 ; 1' rotated about its longitudinal axis (step S6 ). In this way, the radial webs 30th ; 30 ' from the symmetrical alignment to the keyhole 90 unscrewed and clamp or hold the components B1 , B2 ; B1` , B2 ' between the head 10th ; 10 ' and the radial webs 30th ; 30 ' (Step S7 ).

To this clamping or fastening the components B1 , B2 ; B1` , B2 ' are the radial webs 30th ; 30 ' preferably rigid. In this way, they do not give in and reliably fix the components B1 , B2 ; B1 ' , B2 ' when the bayonet connector 1 ; 1' in the first opening 92 ; 92 ' and in the keyhole 90 is rotated.

To provide the above connection are the radial webs 30th According to a first preferred embodiment of the present invention, L-shaped, as in 1 is shown. On one end 34 of the shorter L-leg 32 that the head 10th facing is a fastener 36 intended. The fastener 36 is a projection, preferably in the form of a hemisphere. This lead 36 works with a suitable recess or opening 50 together, which is adjacent to the keyhole 90 in the second component B2 is provided (see 4th ).

Because the radial webs 30th preferred when turning against the second component B2 are mechanically pre-tensioned, the fastener snaps into place 36 , preferably the hemisphere, releasably into the opening or recess 50 a. This will make the bayonet connector 1 secured in this position. In addition to the positive connection, a positive connection is also preferably implemented.

For loosening the connection between the components B1 , B2 and the bayonet connector 1 become the radial webs 30th out of the opening 50 unlocked and in alignment with the keyhole 90 turned. The rotation can be in any direction. Below is the bayonet connector 1 out of the keyhole 90 and the first opening 92 of the first component B1 away.

With regard to the radial webs 30th it is also preferred to use these like beams, ie without a shorter L-leg 32 to construct. In this configuration, the fastener would 36 directly on the beam-like radial web 30th sit and head 10th be facing.

According to a further preferred embodiment of the present invention, the fastening means is present 36 from a radially extending locking web or a locking lip (not shown). Instead of the recess or opening 50 are two further locking lips or locking edges or a locking recess in the surface of the component B2 ; B2 ' provided, in which the locking lip of the radial web 30th can intervene.

Even with this preferred choice of fastener 36 becomes the bayonet connector 1 90 ° out of alignment with the keyhole 90 rotated to be attached. Loosening the bayonet connector 1 takes place in the same or opposite direction of rotation of the bayonet connector 1 , how 4th shows.

Another preferred embodiment of the L-shaped radial webs 30 ' show the 8th to 17th . The L-shaped radial bar 30 ' consists of a shorter L-leg 32 ' with one face 34 ' . On this face 34 ' is a rest stop or a Locking projection 36 ' provided that towards the head 10 ' protrudes. This locking projection or locking bar 36 ' is adapted to fit into a recess or opening 50 ' adjacent to the keyhole 90 intervene or engage.

According to the 4th and 15 are the depressions or openings 50 ; 50 ' preferably arranged in pairs opposite one another. The depressions or openings are also preferred 50 ; 50 ' offset by 90 ° to align the keyhole 90 intended. In this context, it is also preferred to use the depressions or openings 50 ; 50 ' in a non-perpendicular orientation to the keyhole 90 to be arranged (not shown).

According to a further preferred embodiment of the fastening means 36 ; 36 ' it is formed by an inclined slope (not shown). The run-up slope includes a contact surface for contacting the second component B2 that are non-parallel, so inclined to the second component B2 , is arranged.

According to a further preferred embodiment of the present invention, the at least one positioning web 40 and the radial web 30th in the same angular orientation with respect to the shaft 20th arranged (see 1 and 2nd ). According to a further preferred embodiment of the present invention, the radial webs are 30 ' offset by 90 ° to the positioning bars 40 ' on the shaft 20th intended. The latter embodiment, with the same connection qualities, has the advantage in comparison to the first-mentioned embodiment that the manufacturing effort in injection molding with plastics and in metal die-casting with metals is lower. In particular, the tool configuration is simpler in both production routes than for the bayonet connector 1 according to the first mentioned configuration.

A connection consisting of at least the first component B1 ; B1 ' and the second component B2 ; B2 ' show the 5 to 7 and 17th . According to a preferred embodiment of the present invention, the second component B2 ; B2 ' a door frame of a motor vehicle and the first component B1 ; B1 ' an assembly carrier for a motor vehicle door. A power window, a loudspeaker, electrical circuit elements therefor and the like are preferably arranged in an assembly support. To fix the subframe in the door frame, it is preferred to use the bayonet connector 1 ; 1' to be pre-positioned in an opening in the subframe.

According to a further preferred embodiment of the present invention, the head comprises 10th ; 10 ' at its top 12 ; 12 ' at least one opening 16 ; 16 ' . The opening 16 ; 16 ' serves as a drive means to the bayonet connector 1 ; 1' to turn. The at least one opening is also preferably used 16 ; 16 ' or at least one additional opening as an engagement contour for a robot around the bayonet connector 1 ; 1' with a pick-and-place operation on the first component B1 ; B1 ' feed.

Reference symbol list

1, 1 '

Bayonet connector

10, 10 '

head

12, 12 '

Top of the head

14, 14 '

Head underside

16, 16 '

Drive means, opening

20, 20 '

shaft

30, 30 '

Radial webs

32, 32 '

shorter L-leg

34, 34 '

Face

36, 36 '

Fasteners

40.40 '

Positioning bar

42, 42 '

Locking hook

50, 50 '

Deepening, opening

90

keyhole

92, 92 '

first opening

94, 94 '

Franking

96, 96 '

radial projection

98

Locking hook

99

Space

B1, B1 '

first component

B2, B2`

second component

L

Longitudinal axis of the bayonet connector

QUOTES INCLUDE IN THE DESCRIPTION

This list of documents listed by the applicant has been generated automatically and is only included 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 202009004351 U1 [0003]
• DE 202008007378 U1 [0004]
• US 2788047 [0004]

Claims (19)

A one-piece male bayonet connector (1; 1 ') with which at least two components (B1, B2; B1', B2 ') can be detachably connected to each other via an opening (90, 92), which in a side view has a double-T has a head (10; 10 '), a central shaft (20) extending therefrom and two radial webs (30; 30') extending diametrically from the shaft (20), each of which has a head (10 ; 10 ') facing fastening means (36; 36') of the bayonet connector (1; 1 ') so that the at least two components (B1, B2; B1', B2 ') between the head (10; 10') by means of a positive bayonet connection ) and the fastening means (36; 36 ') of the radial webs (30; 30') can be fastened. The bayonet connector (1; 1 ') according to Claim 1 , in which the two radial webs (30; 30 ') are rigid. The bayonet connector (1; 1 ') according to Claim 1 or 2nd , in which the two radial webs (30; 30 ') are L-shaped and a shorter L-leg (32; 32') has the fastening means (36; 36 ') on an end face (34; 34') facing the head. The bayonet connector (1; 1 ') according to Claim 3 , in which the fastening means (36; 36 ') is a latching web, a hemispherical projection or a run-up slope not parallel to an underside (14; 14') of the head (10; 10 '). The bayonet connector (1; 1 ') according to one of the preceding claims, in which the radial webs (30; 30') have a smaller radial extent than the head (10; 10 '). The bayonet connector (1; 1 ') according to one of the preceding claims, which comprises at least one positioning web (40; 40') which extends from an underside (14; 14 ') of the head (10; 10') towards the shaft (20 ; 20 ') extends. The bayonet connector (1; 1 ') according to Claim 6 , whose positioning web (40; 40 ') is arranged radially inwardly spaced from a radial outside of the head (10; 10') and provides an axial undercut, preferably a latching hook, radially outward. The bayonet connector (1; 1 ') according to Claim 6 or 7 , in which the positioning web (40; 40 ') provides a locking means with which rotation of the bayonet connector (1; 1') can be prevented in a pre-position. The bayonet connector (1; 1 ') according to Claim 8 , in which the positioning web (40; 40 ') is constructed in a fork-like manner with two latching hooks (98) separated by an intermediate space (99). The bayonet connector (1; 1 ') according to one of the preceding claims, which consists of plastic or metal. A component assembly comprising at least a first (B1, B1`) and a second component (B2; B2 ') and the bayonet connector (1; 1') according to one of the preceding claims, in which the first component (B1; B1`) is adjacent to the Head (10; 10 ') of the bayonet connector (1; 1') is arranged and comprises a first opening (92; 92 ') and the second component (B2; B2') has a keyhole (90) so that the head ( 10; 10 ') on the first component (B1; B1`), the shaft (20; 20') with the radial webs (30; 30 ') passes through the first opening (92; 92') and the keyhole (90) and the radial webs (30; 30 ') on the second component (B2; B2') are locked away from the head. A composite of at least one first component (B1, B1`) and the bayonet connector (1; 1 ') according to one of the Claims 6 to 10th , in which the bayonet connector (1; 1 ') is releasably locked to the positioning webs (40; 40') at an edge of a first opening (92; 92 ') of the first component (B1; B1`). The component assembly according to Claim 12 , in which the positioning web (40; 40 ') provides a locking means with which rotation of the bayonet connector (1; 1') can be prevented in a pre-position. The component assembly according to Claim 13 , in which the positioning web (40 ') is constructed like a fork with two latching hooks (98) separated by an intermediate space (99) and a projection in or at the first opening (92; 92') of the first component (B1; B1`) the positioning web (40 ') is locked. A method of manufacturing a bayonet connector (1; 1 ') according to one of the preceding claims, comprising the following steps: a. Providing a mold which is suitable for injection molding with plastic or metal die casting and which is complementary to the shape features of the bayonet connector (1; 1 ') according to one of the preceding claims (step H1) b. Filling the mold with liquid plastic or liquid metal, (step H2) c. Curing the plastic or metal in the mold (step H3) and d. Demold the hardened bayonet connector (1; 1 ') (step H4). A connection method for at least a first component (B1; B1`) with a first opening (92; 92 ') and a second component (B2; B2') with a Keyhole (90) with a bayonet connector (1; 1 ') according to one of the Claims 1 to 10th which comprises the following steps: a. stacking the first (B1; B1`) and the second component (B2; B2 ') so that the first opening (92; 92') and the keyhole (90) are aligned with each other (S3), b. Inserting the shaft (20; 20 ') with the radial webs (30; 30') into the keyhole (90) (S5), c. Rotating the bayonet connector (1; 1 ') about its longitudinal axis L within the first opening (92; 92') and the keyhole (90) (S6) and d. Holding, preferably clamping, the first (B1; B1`) and the second component (B2; B2 ') between the head (10; 10') and the radial webs (30; 30 ') of the bayonet connector (1; 1') ( S7). The connection procedure according to Claim 16 , with the further step: providing the first component (B1; B1`) with the first opening (92; 92 ') in which the bayonet connector (1; 1') via at least one positioning web (40; 40 ') on the head ( 10; 10 ') of the bayonet connector (1; 1') is pre-positioned (S1), or providing the first component (B1; B1`) with the first opening (92; 92 ') and the bayonet connector (1; 1') separately from each other (S2) and inserting the bayonet connector (1; 1 ') into the first opening (92; 92') in the stacked arrangement of the first (B1; B1 ') and second component (B2; B2') (S4). The connection procedure according to Claim 16 or 17th , in which the radial webs (30; 30 ') have locking projections (96; 96') facing the head which, when the bayonet connector (1; 1 ') is rotated, each in a recess or an opening (50; 50') on the second component (B2 ; B2 ') click into place. The connection procedure according to Claim 16 or 17th , in which the radial webs (30; 30 ') have head bevels which, when the bayonet connector (1; 1') is rotated about its longitudinal axis, have the first (B1; B1`) and the second component (B2; B2 ') between the head ( 10; 10 ') and radial webs (30; 30') of the bayonet connector (1; 1 ').

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