EP2442407B1 - Plug-in element for an electrical connector and method for mounting same - Google Patents

Description

The invention relates to a plug part for an electrical connector, which is designed to receive a cable and to connect to a further plug part of the plug connector, and which comprises a housing part, in which the cable extends with its front end, wherein the cable in the housing is held by a holding device. Furthermore, the invention relates to a method for mounting a plug part for an electrical connector.

A connector is for example from the DE 20 2008 013 795 U1 known.

From the US 2010/0112855 A1 a coaxial connector according to the preamble of claim 1 is known. The same is true of the GB 2 168 548 A known.

From the DE 10 2007 038 168 A1 For example, a shielded connector as well as a mounting method therefor is known. In addition, from the US 5,728,987 a plug part with a locking ring with locking lugs known.

The attachment of cables in a plug part, in particular a housing part of the plug part, is an essential prerequisite for a reliable operating principle and a high number of low-wear feasible separating and connecting plug parts of the connector.

It is an object of the present invention to provide a plug part for an electrical connector and a method for mounting a plug part, in which a secure and reliable permanent retention of the cable is ensured in the plug part.

This object is achieved by a plug part, which has the features according to claim 1, and a method, which has the features according to claim 11.

An inventive plug part for an electrical connector is designed to receive a cable and to connect to a further plug part of the connector. The plug part comprises a housing part into which the cable extends with its front end. The cable is held in the housing part by a holding device. The holding device comprises a securing ring for axially securing the position of further separate components arranged in the housing part. The securing ring is supported in the assembled end state of the plug part on an inner side of the housing part in such a way that an axial holding force is applied for axially securing the position of the components. It is thus created axial securing, which is self-holding.

The components may comprise a seal and / or a support element and / or a shield connection. There may also be provided other elements.

The circlip can be supported on a smooth inner side of the housing part and in which case a certain clawing of the circlip in the material of the inner side is formed by the insertion, so that the axial holding force is generated and held. Preferably, then, the material of the housing part, at least in the area in which the support and connection with the retaining ring occurs softer than the retaining ring. It can also be provided that on the inside of the housing part in this area a specific softer material insert is introduced as a separate component in the housing part, in particular embedded.

It is preferably provided that on the inside at least one, in particular a plurality of securing grooves are formed, in which locking teeth of the locking ring engage for supporting and generating the axial holding force. This allows a particularly durable holding and large axial counter forces resisting positional fixation.

The holding device comprises a securing ring, which surrounds the cable on the circumferential side and which has a plurality of securing teeth. The locking ring further comprises a base ring, on which the securing teeth are arranged, and from which they are formed projecting outwards. In the assembled state of the plug part, the securing teeth of the securing ring are engaging in a securing groove, wherein the securing groove is formed on an inner side of the housing part. By such a configuration, a positionally secure and mechanically stable Zahnverrastung is created. Since the housing part is a mechanically particularly stable and robust component, it can ensure a particularly stable and robust support with regard to the internal absorption of the components and in mechanical interaction with the retaining ring. Due to the mechanical connection of the locking ring with the internal locking groove and a protected position of the connection points is created. In addition, the design of the securing groove on the inside of the housing part, this space-saving and space-minimized, so that the space in the interior of the housing part for components to be introduced by securing groove is not reduced and impaired. Not least, by this very special concept and the design of the locking ring, the proposed connection with the housing part also act to the effect particularly advantageous because during assembly of the plug part a very specific and defined insertion of the locking ring, which surrounds the cable can be done in the axial direction and thereby almost automatically and particularly defined and precise locking in a security groove can be done location exactly.

It is preferably provided that at least some, in particular all, of the securing teeth in the uninstalled state of the securing ring at an angle greater than 2 ° and less than 24 °, in particular between 2 ° and 14 °, are arranged inclined relative to the plane of the base ring. The safety teeth are thus almost pre-bent in an embodiment of the locking ring in the uninstalled state and arranged inclined in a certain radial oblique position to the outside. This is advantageous in that thereby the reliable holding in the securing groove and the particularly defined locking can be ensured during assembly and thereby then due to the special mounting position of the Si tion ring quasi by the safety teeth a kind of barbs are formed. In such an embodiment, a particularly position-fixing holder is made possible in the housing part.

In a further embodiment it can be provided that at least some, in particular all, of the securing teeth in the uninstalled state of the securing ring extend in the plane of the base ring. In such a configuration is thus in the uninstalled state of the locking ring no inclination of the safety teeth or at least only some of the safety teeth no such inclination but only provided in strictly radial orientation orientation of the safety teeth.

In a particularly advantageous manner, it is provided that the securing teeth are arranged in the installed final state of the locking ring in the housing part at an angle between 3 ° and less than 25 °, in particular between 3 ° and 15 °, inclined relative to the plane of the base ring. The above-mentioned advantage in terms of the particularly position-fixing arrangement by the formation of quasi barbs is ensured. Precisely in the installed state, the pressed-in state of the components in the housing part is held in a positionally reliable and stable manner even when very large axial forces act on the securing ring in the direction opposite to the original press-in force. In addition, by this tendency, a stable support of the securing teeth on the wall of the securing groove, in which the teeth engage, can be achieved in order to withstand these axial forces.

Preferably, a Sicherungsnute is V-shaped in section, so that when inclined position of the securing teeth these teeth, in particular with their front edges invest in the notch or adjacent to the notch on a wall of the V-shape or support and in particular the outer surfaces of the securing teeth over a large area against the rear wall of the V-shape. This results in a particularly robust and mechanically highest demands standards-retaining concept of position fixation.

In a particularly advantageous manner it is provided that the securing teeth and the retaining ring are formed in terms of shape and / or material so that the inclination of the securing teeth in the installed final state of the locking ring in the housing part is greater than the possibly existing inclination in the uninstalled state. In particular, it is thus provided that the securing teeth when assembling the male part and when engaging in a securing groove in their position consciously bendable and thus can change their position in terms of inclination. The position-fixing locking and the precise positioning with the functionality of particularly stable holding barbs in the form of the safety teeth is achieved.

Preferably, the retaining ring is integrally formed. It is preferably formed of a metal.

In particular, it is provided that a number greater than 4 such securing teeth is formed on the base ring of the locking ring. The number of securing teeth is preferably less than 15, in particular less than 8.

With regard to the shape of the securing teeth, these are formed in a particularly advantageous manner as plate-like strips. They preferably have an equal width over their entire length. The front edge of such a safety tooth is preferably substantially rectilinear and has rounded corner areas. It can also be provided that the front edge is slightly arcuate, for example, it can be provided that this arcuate configuration is adapted to the arc shape of the securing groove. A particularly precise and positive mechanical contacting of a safety tooth when engaging in a safety groove can be ensured.

Particularly advantageous is provided that when at least some, in particular all, the securing teeth are already arranged in the uninstalled state in a certain inclined position radially outwards, the locking ring is pushed onto the cable so that the teeth are in the opposite direction to the housing part orient in the housing part before inserting.

In particular, it is also provided in the installed state of the securing ring in the housing part, that the inclined locking teeth are inclined in the direction of the then rear end of the housing part and are oriented accordingly.

The plug part comprises a support ring, in which the retaining ring is inserted. By the support ring quasi an additional support for the retaining ring is thus created, wherein the support ring is assigned as a component of the holding device.

The support ring is preferably formed of plastic and manufactured in one piece.

The support ring comprises a circumferential ridge, which has interruptions, through which the securing teeth can extend in the inserted state of the locking ring in the support ring radially outward. As a result, a particularly stable mounting of the locking ring is ensured in the support ring and yet ensures the engagement of the locking teeth in the locking groove and the bending of the locking teeth during assembly of the connector part. In particular, this support ring with the interruptions even a particularly targeted and guided introduction of the locking ring can be made possible in a safety groove. In addition, a very specific direction of bending of the safety teeth is achieved by these interruptions and virtually achieved the bending in a direction parallel to the longitudinal axis of the housing part. Such a configuration can thus be achieved in a particularly advantageous manner, a possible uniform bending of all securing teeth in the same direction and substantially the same angle. As a result, a particularly symmetrical and centered position-fixed arrangement of the components and also of the securing ring in the housing part can be created. By the support ring is even at relatively large pressing forces acting on the locking ring, its undesirable deformation, such as a twisting or radial buckling prevented.

It is preferably provided that the support ring on the side provided for receiving the securing ring opposite side has a circumferential receiving area for a seal. Also, the seal is thus at least partially arranged to extend into the support ring, when the plug part is assembled. Also, thus, the seal can thus be protected from unwanted tilting or twisting and thus is virtually completely axial and centered in the housing part. The receiving area for the seal is in particular funnel-shaped or conical.

The seal is preferably formed as an annular bead and thus with a curved outer surface. The seal is in particular made of an elastic material, for example of an elastomer.

It is preferably provided that the securing groove is formed at the rear end of the housing part on the inside. In particular, it is provided that a securing groove is formed directly on the rear edge of the housing part on the inside of the housing part.

Advantageously, it is provided that the securing groove is formed as completely encircling on the inside.

It can also be provided that viewed in the circumferential direction a securing groove consists of a plurality of annular sections, which are viewed in the axial direction on the same longitudinal portion of the axis and in the circumferential direction about the longitudinal axis are preferably formed equidistantly on the inside of the housing part. In such a configuration it can be provided that a ring portion of this securing groove is formed for receiving at least one or more securing teeth of the securing ring.

In a particularly advantageous manner, it is provided that a plurality of securing grooves is formed, which are viewed in the axial direction immediately adjacent to each other and are formed sequentially in order. Preferably, each of these Sicherungsnute is formed as completely encircling the inside. Preferably, the number of securing grooves is less than 10, preferably between 3 and 6.

This can be formed by means of a housing part a plurality of plug-part variants, which are characterized for example by different cables. It can thus be provided that a variety of cable types can be locked in the housing part, and although they are different, all can be fixed in position almost quasi. Due to the plurality of securing grooves, it is possible for securing teeth to be latched into the respectively suitable securing groove depending on the cable to be fixed in position.

In particular, it is ensured that for positioning cables with different diameters an axial press-in force for the cables and a cable embracing holding seal is given and the locking ring and the locking groove are formed and arranged so that depending on the respective diameter of a cable and / or a seal associated with this diameter, a defined latching of the securing teeth occurs in a securing groove assigned to this diameter and / or the seal. As a result, particularly precise and precisely also very different cables can be quasi defined and held in position fixed in the housing part. The cable-specific seals may vary in shape and / or diameter and / or axial dimensions.

If a cable with a first diameter is provided for the obstruction in a housing part and pressed into the housing part with a defined axial press-in force, then the locking ring locks with its safety teeth in a first securing groove provided for this purpose.

On the other hand, if it is provided that the housing part is provided for receiving a different cable, for example with a larger diameter or should be equipped accordingly, it is pressed with the same press-in force as in the other cable this thicker cable in the axial direction in the housing part and thus also according to the voltage applied to the outside of the cable and holding the cable seal, especially the support ring and the locking ring axially inserted into the housing part and positioned therein by the locking ring with its locking teeth then locked in an associated other Sicherungsnut than the thinner cable ,

With regard to the position of the securing ring, this is virtually the rear-end closing and quasi-last component of the holding device, which holds the state of the seal pressed into the housing and of the support ring and thus also of the cable.

It is envisaged that viewed in the axial direction from the front end to the rear in the housing part, a support for the electrical contacts is arranged, followed by an annular shield connection and in turn subsequently the seal and in turn subsequently the support ring and in turn subsequently to the rear closing the locking ring. At least partially on the outside of the housing part, a cover sleeve may be provided which includes an elastic and bendable kink protection element at the rear, which surrounds the cable and stabilizes this with regard to kink protection. Preferably, the design sleeve and the bend protection are integrally formed.

Preferably, the securing grooves are all formed with an equal depth and a same groove width in the axial direction.

In particular, it is provided that the inner diameter of the securing ring is greater than the outer diameter of the cable, that in the assembled state of the plug part of the locking ring is arranged contactlessly with the outside of the cable. Since the snap ring is relatively thin (extent in the axial direction of the plug part), this can be an undesirable chafing or cutting into the outer cable insulation can be avoided.

By the holding device, the cable is fixed in position both radially and axially in the housing part.

Furthermore, the invention relates to a method for mounting a plug part for an electrical connector, in which a cable is held fixed in position in a housing part of the plug part. A surrounding the cable retaining ring of a holding device, which is arranged for axially securing position of arranged in the housing part components is pushed onto the cable and when inserting the front end of the cable into the housing part of the circlip is inserted into the housing part and comes with an inside of the Housing part in plant. As a result of the further insertion of the securing ring into the housing part, in the assembled end state of the plug part the securing ring is supported on an inner side of the housing part such that an axial holding force for axially securing the position of the components is produced and maintained.

Preferably, a circlip surrounding the cable of a holding device is pushed onto the cable and when inserting the front end of the cable into the housing part, a plurality of securing teeth of the securing ring, which are arranged projecting from a base ring of the securing ring to the outside, in a securing groove on the Positioned inside the housing part engaging and the cable fixed position held in the housing part.

In particular, it is provided during assembly that the front end of the cable is embraced with a form-fitting sealing on the outside, so that in this respect preferably there is a press fit and an axial movement relative between the seal and the cable is not or only extremely difficult.

Furthermore, then a support ring and a retaining ring is threaded onto the cable quasi, wherein the support ring and the locking ring preferably larger inner diameter than the outer diameter of the cable such that the support ring and the retaining ring are positioned without contact to the outside of the cable in the assembled state of the connector part ,

With regard to the retaining ring this is arranged as a rear final component of the holding device, so that the front end of the cable, the seal and the support ring are held in a compressed end position in the housing part of the plug part.

In particular, this component assembly is pressed with an axial pressing force into the interior of the housing part and the securing teeth are then bent when sliding into the housing part in the desired and defined extent. Due to the direction of the axial press-in force, these locking teeth are bent in the other direction, since the outer diameter of the securing ring at its outer ends of the securing teeth is greater than the inner diameter of the housing part. By this desired and defined bending of the securing teeth at an angle between 3 ° and 25 °, in particular between 3 ° and 15 °, then a particularly position-fixed and precise mounting and pressing is achieved when locking the backward curved locking teeth in a locking groove. As a result of this bending of the securing teeth to the rear, a barb geometry is created, as it were, so that the securing ring can not be pressed outwards in an unintentional manner in the axial direction.

In particular, the defined bent securing teeth in a cross-section in particular V-shaped locking groove defined to lie and support themselves there on the walls of the V-form. Due to the shape and position, in particular axial and radial support forces occur.

The press-in force is for example several thousand N, preferably between 2800 N and 3200 N.

Further advantageous embodiments of the plug part according to the invention are to be regarded as advantageous embodiments of the method according to the invention.

Further features of the invention will become apparent from the claims, the figures and the description of the figures. The features and feature combinations mentioned above in the description as well as the features and feature combinations mentioned below in the description of the figures alone and / or in the figures alone can be used not only in the respectively specified combination but also in other combinations or alone, without the frame to leave the invention.

Fig. 1

eine Explosionsdarstellung eines Ausführungsbeispiels eines erfindungsgemäßen Steckerteils;

Fig. 2

eine weitere Explosionsdarstellung des Steckerteils mit teilweise geschnittenem bzw. aufgebrochenem Gehäuseteil des Steckerteils; und

Fig. 3

eine skizzenhafte Darstellung des im verbauten Endzustand im Gehäuseteil angeordneten Sicherungsrings.

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

Fig. 1

an exploded view of an embodiment of a connector part according to the invention;

Fig. 2

a further exploded view of the plug part with partially cut or broken housing part of the plug part; and

Fig. 3

a sketchy representation of the installed in the final state in the housing part circlip.

In the figures, identical or functionally identical elements are provided with the same reference numerals.

In Fig. 1 is shown in an exploded view, a plug part 1 for an electrical connector. The plug part 1 is coupled to a second plug part, not shown, of the connector. The plug part 1 is a round plug, which has a metal part and hollow cylinder-like housing part 2. At a front end 3, which connects to is provided with the second plug part, not shown, a cap sleeve 5 is formed on an outer side 4 of the housing part 2, which is held on the housing part 2. The cap sleeve 5 is rotatable about the longitudinal axis A relative to the housing part 2. It is also held by an internal spring, such as a torsion spring. By the spring bias and an automatic return of the rotated in the direction of rotation cap sleeve 5 is achieved in the starting position when releasing the cap sleeve 5.

The plug part 1 further comprises a carrier 6, which is designed to receive and hold the electrical contacts. The carrier 6 is in particular formed in one piece from plastic. He is also designed to accommodate the front ends of lead wires 7, which then open into the electrical contacts. These strands 7 are associated with a cable 8, wherein the strands 7 are circumferentially surrounded by a sheath 9.

The plug part 1 further comprises a shield connection 10, which surrounds the cable 8 in particular at the front end of the casing 9 as a ring. In addition, in the axial direction to the rear, the plug part 1 comprises an annular and bead-like seal 11, which is arranged snugly on the outside of the casing 9.

Furthermore, a made of plastic and integrally formed support ring 12 is provided, which also surrounds the casing 9 in an annular manner.

In addition, a one-piece and formed of metal locking ring 13 is provided, which is viewed in the axial direction behind the support ring 12 and is partially positioned embedded in the support ring 12 when the connector part 1 is assembled.

The inner diameter of the support ring 12 and the securing ring 13 are dimensioned so that in the assembled state of the plug part 1, the outside of the casing 9 is arranged without contact to the support ring 12 and the locking ring 13 (see Fig. 3 ).

At least the components of the support ring 12 and the securing ring 13, in particular also the seal 11 and the shield connection 10, are components a holding device, with which the cable 8 fixed in position with its front end in the interior of the housing part 2 is held.

As can be seen, the support ring 12 at its end facing the seal 11 and on this side a cone shape 14 as a receiving area, so that in the assembled state, the outer side 15 of the seal 11 hineinerstreckt into the support ring 12 and at this cone shape 14th is applied.

On the opposite side, and thus the side facing away from the seal 11, the support ring 12 on an annular ridge 16 which has a plurality of interruptions, of which the clarity serving only the interruptions 17 and 18 are provided by reference numerals.

The support ring 12 is designed to receive the securing ring 13.

It is provided that a base ring 19 of the securing ring 13 in the assembled state of the plug part 1 is arranged behind or radially inwardly to the web 16 in the support ring 12.

As from the representation of Fig. 1 As can be seen, a plurality of radially outwardly projecting securing teeth are arranged on the base ring 19, of which for clarity serving as an example and representative of the other only two are provided with the reference numerals 20 and 21. Preferably, the number of securing teeth 20 and 21 is less than 10, in particular 8. The securing teeth 20 and 21 are arranged in the circumferential direction around the base ring 19 equidistant and extend, as already mentioned, radially outward. It may be provided that at least some, in particular all of the securing teeth 20 and 21 extend radially outwards in a straight line and also extend in the plane in which the base ring 19 extends. This is to be understood for the initial configuration of the securing ring 13 and thus in its uninstalled state or in the housing part 2 not yet installed state.

Likewise, however, it may also be provided in this uninstalled state of the securing ring 13 that at least some, in particular all of the securing teeth 20 and 21 are angled relative to the plane in which the base ring 19 extends. Preferably, in the context then an angle between 2 ° and 24 °, in particular between 2 ° and 14 ° advantageous. In such an embodiment, it is then provided that the securing ring 13 is arranged in the still uninstalled state so that the inclined orientation of the securing teeth 20 and 21 facing away from the support ring 12 results quasi to the rear.

The securing teeth 20 and 21 are plate-like flat strips which are substantially rectangular. An outer and thus an edge facing away from the base ring 19 and the front edge 28 (FIG. Fig. 2 ) of a securing tooth 20 may be straight or in the direction of rotation about the axis A have a certain arcuate contour.

The number of interruptions 17 and 18 in the support ring 12 corresponds in particular to the number of securing teeth 20 and 21. In the assembled state, the securing teeth 20 and 21 extend through the interruptions 17 and 18 to the outside and are in the radial direction to the outside the lateral surface 22 of the support ring 12 via. The width and thus the extent in the direction of rotation about the axis A of an interruption 17 is so dimensioned that a securing tooth 20 can be inserted substantially accurately therein.

In the illustration according to Fig. 2 the assembled state of the support ring 12 is shown with the locking ring 13. The retaining ring 13 is arranged almost completely embedded in the support ring 12.

With regard to the positional fixing of the cable 8 and also the components of the support ring 12, the seal 11 and the shield connection 10 in the housing part 2, according to the view in FIG Fig. 2 generates an axial press-in force, which is for example 3000 N As from the illustration in Fig. 2 can be seen, is formed on an inner side 23 of the housing part 2 at its rear end 24 a plurality 25 of securing grooves. In the exemplary embodiment, five securing grooves are provided, the clarity serving merely the two the rear end 24 nearest securing grooves are denoted by the reference numerals 26 and 27. The Sicherungsnute 26 and 27, which are representative of the other Sicherungsnute, which are formed analogously, are all fully circumferentially formed. They have the same width in the axial direction and the same depth in the radial direction.

The outer diameter of the support ring 12 is dimensioned so that it can be easily moved into the interior of the housing part 2 and thus also on the securing grooves 26 and 27.

The outer diameter of the securing ring 13 and in particular the diameter measured at the outer edges 28 of two opposite securing teeth is greater than the inner diameter of the housing part 2, in particular in the region of the plurality 25 of the Sicherungsnute.

During axial insertion in the direction of arrow P as shown in FIG Fig. 2 With the predetermined defined press-in force, it is thus achieved that the securing teeth 20 and 21 engage in one of the securing grooves 26 and 27 or one of the further unspecified securing grooves and an axial holding force is generated, by which an axial positional fixing of the components 10, 11 and 12 and the cable 8 in the housing part 2 is reached. This is dependent on the outer diameter of the cable 8, in particular the outer diameter of the sheath 9. In this context, it should be mentioned that the housing part 2 is designed to accommodate a variety of cables with different outer diameters. If a first cable with a first outer diameter is introduced into the housing part 2 in the context, this is defined as defined by the axial press-in force. In this combination, then lock the locking teeth 20 and 21 in a related and provided for this purpose securing groove. On the other hand provided that the housing part 2 is to receive another cable, which has a larger outer diameter compared to the first cable, so this cable is pressed or pushed in the axial direction in the housing part 2 with the same defined pressing force, in which case the Latching locking teeth 20 and 21 at a different security groove to the first other securing groove, in particular lock in a rear end 24 closer securing groove.

It is particularly advantageous that when mounting the plug part 1 during axial pressing of the cable 8 and the components 10, 11, 12 and 13 in the interior of the housing part 2, the securing teeth 20 and 21 are defined and bent deliberately. Due to the direction of the insertion force and the arrangement and orientation of the locking ring 13 when locking in one of the securing groove 26 and 27, these securing teeth 20, 21 are defined and intentionally bent so that they are opposite the plane of the base ring 19 are inclined at an angle between 3 ° and 15 ° inclined to the rear. In the installed state of the securing ring 13, the securing teeth 20 and 21 thus extend at this angle between 3 ° and 15 ° in the direction of the rear end 24 of the housing part 2 (see Fig. 3 ). By such an arrangement and intentional bending and inclination orientation quasi a securing anchorage is achieved, in which case the securing teeth 20 and 21 form quasi barbs. Due to the compression forces arise against the arrow P, which can be kept particularly well and intercepted due to the defined generated inclined position of the securing teeth 20 and 21 and their support in a securing groove to the rear.

By embedding the securing teeth 20 and 21 in the interruptions 17 and 18 and their shape and orientation, a very guided and desired bending with regard to the direction of bending and the bending tendency can be achieved. Unwanted deforming or otherwise bending or twisting and twisting of the securing teeth 20 and 21 and / or the base ring 19 can thereby be avoided.

In the illustration according to Fig. 3 is a schematic sectional view (the clarity serving without hatched cut surfaces) shown by a mounted in the final state plug part 1 in a partial section. It can be seen that the securing teeth 20 and 21 in this installed state of the securing ring 13 at an angle α between 3 ° and 15 ° relative to the plane 29 in which the base ring 19 extends toward the rear end 24 of the Housing part 2 are oriented. It is in the representation in Fig. 3 to recognize that the sheath 9 is arranged without contact with the support ring 12 and the locking ring 13. In addition, it is shown by way of example that the securing teeth 20 and 21 are latched in the rearmost securing groove 26. In such an embodiment, the casing 9 has practically the maximum in the housing part 2 can be received and built outer diameter of a cable 8. The associated seal 11 is formed adapted thereto. If, as already mentioned above, a cable with a smaller outer diameter installed and pressed, and provided in comparison to the top of other to the thinner cable adapted thereto seal 11, so lock the locking teeth 20 and 21 in a rear end 24 further securing groove, for example, in the securing groove 27 or a further arranged securing groove.

As shown in Fig. 3 It can be seen that in an advantageous embodiment, at least one inclined locking tooth 20, 21 with its front free edge 28 (reference numerals for clarity only in Fig. 2 plotted) adjacent to the notch of the substantially V-shaped cut securing groove 26 abuts the front wall of the V-shape and is supported there. Furthermore, it can be seen that, in particular, at least one securing tooth 20, 21 preferably bears or supports its largest possible area with its outer side on the other wall of the V-shape of the securing groove 26.

As in the illustrations in Fig. 1 and Fig. 2 is shown, the plug part 1 also includes a protective sleeve 30, which surrounds the outer side 4 to a stop 31 in the assembled state. On the outer side 4, an elevation 32 is formed, which is provided for anchoring with complementary interventions on the inside of the protective sleeve 30, so that these positionally fixed to the housing part 2 is held. The protective sleeve 30 also includes an elastic bend protection 33, which is formed integrally with the protective sleeve 30 and in the exemplary embodiment spirally wound.

In a further embodiment, it could also be provided that the inner side 18 in the region of the support with the securing ring 13 is also smooth and thus without a safety groove. In such an embodiment, then a support of the locking ring 13 on the inside 18 by a Materialverkrallung and / or Materialabscherung (softer material of the inner side 18 compared to the locking ring 13) is generated and an axial holding force, as in the embodiments as shown in Fig. 1 to 3 heretofore explained, produced, applied and held.

Instead of the securing teeth 20 and 21 and a peripheral edge web may be formed on the base ring 19.

Claims (11)

1. Plug part for an electric plug connector, which is configured for receiving a cable (8) and for connecting with a further plug part of the plug connector, and which comprises a housing (2), into which the cable (8) extends with its front end, wherein the cable (8) is retained in the housing part (2) by a holding device, wherein the holding device comprises a locking ring (13) for axial position locking of components (8, 10, 11, 12) arranged in the housing part (2), and the locking ring (13) in the assembled final state of the plug part (1) on an inner surface (23) of the housing part (2) is supported in such a way that an axial retaining force is applied for position securing of the components (10, 11, 12),
   characterized in that
   the locking ring (13) surrounds the cable (8) on the circumferential side and comprises a multitude of locking teeth (20, 21), which are arranged to protrude outwardly from a basic ring (19) and in the assembled state of the plug part (1) are supported by the inner surface (23), and a support ring (12) is formed, which is contacted by the locking ring (13), in particular is inserted therein, and the support ring (12) comprises a circumferentially extending bar (16) having interruptions (17, 18), through which the locking teeth (20, 21) in the inserted state of the locking ring (13) radially extend outward.
2. Plug part according to claim 1,
   characterized in that
   the locking teeth (20, 21) engage a locking groove (25, 26, 27), which is formed on the inner surface (23) of the housing part (2).
3. Plug part according to claim 1 or 2,
   characterized in that
   at least some, in particular all, of the locking teeth (20, 21) in the uninstalled state of the locking ring (13) are arranged to be inclined at an angle larger than 2°and smaller than 25°, in particular between 3° and 15°, relative to the plane (29) of the basic ring (19).
4. Plug part according to any one of claims 1 to 3,
   characterized in that
   at least some, in particular all, of the locking teeth (20, 21) in the uninstalled state of the locking ring (13) extend in the plane (29) of the basic ring (19).
5. Plug part according to any one of claims 1 to 4,
   characterized in that
   the locking teeth (20, 21) or the outer bar in the installed final state of the locking ring (13) in the housing part (2) are or is arranged to be inclined at an angle larger than 2° and smaller than 25°, in particular between 3° and 15°, relative to the plane (29) of the basic ring (19).
6. Plug part according to any one of claims 1 to 5,
   characterized in that
   the inclination of the locking teeth (20, 21) or the outer bar in the installed final state of the locking ring (13) in the housing part (2) is larger than the possibly existent inclination in the uninstalled state, in particular the locking ring (13) is arranged in such a way that the inclined locking teeth (20, 21) or the outer bar are or is oriented in the direction of the rear end (24) of the housing part (2).
7. Plug part according to any one of the preceding claims 1 to 6,
   characterized in that
   the locking teeth (20, 21) or the outer bar upon assembling the plug part and engaging a locking groove (25, 26, 27) are or is configured to be bendable in their position.
8. Plug part according to any one of the preceding claims 1 to 7,
   characterized in that
   the locking groove (25, 26, 27) is configured to be adjacent to the rear end (24) of the housing part (2).
9. Plug part according to any one of the preceding claims 1 to 8,
   characterized in that
   a multitude (25) of locking grooves (26, 27) is configured, which viewed in the axial direction (A) are configured to be directly adjacent to each other and subsequent to each other.
10. Plug part according to claim 9,
    characterized in that
    for positioning cables (8) with different diameters an axial press-in force for the cable (8) and a sealing (11) surrounding and holding the cable (8) is predetermined and the locking ring (13) and the locking groove (25, 26, 27) are configured and arranged in such a way that depending on the respective diameter of a cable (8) and/or the sealing (11) adjusted in radial and/or axial dimension to the diameter of the cable (8) a defined latching-in of the locking teeth (20, 21) or the outer bar in a locking groove (25, 26, 27) associated with the cable (8) and/or the sealing (11) occurs.
11. Method for mounting a plug part (1) for an electric plug connector, in which a cable (8) is retained in fixed position in a housing part (2) of the plug part (1), wherein
    a locking ring (13) of a holding device surrounding the cable (8), which is arranged for axial position securing of components (8, 10, 11, 12) arranged in the housing part (2), is slid onto the cable (8) and upon insertion of the front end of the cable (8) into the housing part (2) the locking ring (13) is slid into the housing part (2) and comes to contact an inner surface (23) of the housing part (2) and by the further insertion of the locking ring (13) into the plug part (2) in the assembled final state of the plug part (1) the locking ring (13) is supported by an inner surface (23) of the housing part (2) in such a way that an axial retaining force for axial position securing of the components (10, 11, 12) is generated,
    characterized in that
    the locking ring (13) surrounds the cable (8) on the circumferential side and comprises a multitude of locking teeth (20, 21), which are arranged to protrude outwardly from a basic ring (19) and in the assembled state of the plug part (1) are supported by the inner surface (23), and a support ring (12) is configured, which is contacted by the locking ring (13), in particular is inserted therein, and the support ring (12) comprises a circumferentially extending bar (16) with interruptions (17, 18), through which the locking teeth (20, 21) in the inserted state of the locking ring (13) in the support ring (12) are radially extended outward.

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