DE20319049U1 - Connector for use with a coaxial cable, has a guide section with outer electrode spring finger contacts - Google Patents

Abstract

The coaxial cable connector has a main metal body [1] with a lead-in section [8] into which the exposed end of a coaxial cable is fed. The outer conductor has an undulating form and this engages a series of contact fingers [9]. When inserted the end engages a spring loaded centre electrode [24] that is mounted in a retaining element [22].

Description

The invention relates to a fitting for coaxial corrugated cable with the features specified in the preamble of claim 1. Such a fitting is from the DE 43 23 953 C2 known. The known fitting has a two-part housing with a rear part and with a front part, which are only joined together by the process of assembly on the corrugated pipe cable. To assemble the valve, the corrugated pipe cable is first cut off bluntly and the cable sheath is removed over part of its length. Then the rear part of the housing is pushed onto the cable sheath until the tips of the fingers of the sleeve strike the first crest of the corrugated tube. Therefore, the rear part of the housing has an inner diameter that is adapted to the outer diameter of the cable sheath. If you push the rear part of the housing further onto the jacket with a little more force, the fingers spring outwards so that their tips can overcome the first wave crest, whereupon they spring into the first wave valley. At the front end, the rear part of the housing has an inwardly projecting collar which engages in a recess in a sleeve which has a plurality of longitudinal slots in a front section, through which fingers are formed which have a tip at the front end with which they fit into a Intervene in the corrugation trough of the corrugated pipe. The fact that the collar engages in the recess of the sleeve, this is caught in the rear part of the housing. Because the recess in the sleeve is considerably wider in the axial direction than the collar of the rear housing part, the sleeve can be displaced to a limited extent in the rear housing part.

The front part of the case has a rear section, the inside diameter of which is the smallest Corresponds to the inner diameter of the corrugated pipe. In the front part of the front part of the housing is an inner conductor contact part held in an insulation support. On their outside carries that Front housing an over-mother, which on a matching external thread of the rear part of the housing is rotated. The first wave crest of the corrugated tube is between the fingers of the sleeve clamped on one side and an annular stop surface formed in the front part of the housing and folded by progressively turning the union nut; thereby a flanged flange is formed at the front edge of the corrugated tube and that Corrugated tube both mechanically and electrically with the screwed together casing connected. At the same time, the inner conductor contact part penetrates with one against the corrugated pipe, radially resilient socket in the tubular Inner conductor of the corrugated tube and sets the electrical contact to this one.

The disadvantage is that the assembly the valve requires an experienced and reliable mechanic. Otherwise it can happen that the flanged flange is not optimally formed will and that is related the inner conductor contact and the outer conductor contact are not done optimally. This can lead to a deterioration in the RF transmission behavior the known valve lead. Moreover the assembly of the known valve is time consuming.

The present invention lies based on the task of a fitting for a coaxial corrugated cable to disposal to ask, which can be done with less effort even by less experienced Installers can be assembled and construction-related offers a greater guarantee that that there is good electrical contact between them when mounting the fitting and the corrugated pipe cable comes.

This task is solved by a fitting with the features specified in claim 1. advantageous Developments of the invention are the subject of the dependent claims.

In the valve according to the invention is the housing connected in one piece, preferably in one piece, trained and the sleeve is in its front end position in the housing to prevent movement in the direction of the longitudinal axis form-fitting fixable. This has major advantages:

• - The casing does not have to first screwed together on the construction site from two parts, rather, it can be made in one piece from the outset, or, when it's made in two pieces becomes a coherent already in the manufacturer's factory Part.
• - The makes it easier for users to keep their position.
• - confusion of housing parts with the user are excluded.
• - The casing cannot be assembled incorrectly on the construction site.
• - In the one-piece connected housing there is a stop, which is pressed against the front edge of the corrugated tube in order to fold it to form a flanged flange and at the same time to make the required electrical contact between the corrugated tube and the housing. Unlike the known valve, the position of this stop does not depend on how far two housing parts have been screwed together, but is independent of it. Rather, the corrugated pipe cable can be pressed into the fitting until it stops, which means that the fingers of the sleeve and the stop have come as close as possible to each other. The greatest possible approximation is achieved when the foremost crest of the corrugated tube is folded together as closely as possible; the distance between the fingers of the sleeve and the stop is then twice the wall thickness of the corrugated tube. In this way it can be ensured that the formation of the flanged flange and its electrical contacting are reproducible in the same quality, which is particularly important since the Monta ge does not see what is going on in the valve. Since the position of the inner conductor contact part in the armature is in a fixed spatial relationship to the position of the stop for the corrugated tube, which is given by the design specifications and by the assembly in the factory, reproducible contacting on the corrugated tube also results in reproducible contacting on Inner conductor of the corrugated pipe cable.
• - The Fact that the housing connected in one piece or in one piece is formed, the sealing of the valve against intrusion facilitates of moisture.
• - The reproducible contact on the corrugated tube and on the inner conductor of the Corrugated pipe leads reproducible high-frequency transmission properties.
• - The innovative design of the valve avoids assembly errors and thus Warranty claims.
• - With the new cable fitting Assembly times shortened while increasing process reliability.
• - The Fact that the housing the valve is already connected in one piece at the factory or designed in one piece allows smaller dimensions and a higher mechanical strength.
• - The to be connected Corrugated pipe cable needs for assembly the valve can not be prepared in a special way. It is enough how in the prior art, cut the corrugated pipe cable flat and then to remove the cable sheath over a specified part of its length.

The one for forming the flange required force can be applied by a simple assembly tool become. The assembly tool can be a holder for the valve with a fixed stop for one end of the fitting and with one opposite in the direction of the longitudinal axis the armature movable stamp exist between which the armature with its front end and the sleeve of the fitting with its rear End clamped and then pushed together until it stops continues. This may can be reached by hand using a toggle mechanism. A different possibility consists of moving the stamp using a spindle. The spindle could in turn with a conventional one electrically operated screwdriver, for example with a cordless screwdriver, actuated become. The stamp could also be used for industrial assembly Air cylinders or driven by a hydraulic cylinder.

You can mount the valve the prepared corrugated pipe cable first in the sleeve of the fitting insert until the tips of the fingers of the sleeve into the first wave trough compress the corrugated tube. The sleeve is then captively connected to the corrugated pipe cable. In front of the sleeve then a wave crest from which the flange is formed can. To do this, the corrugated pipe cable is inserted into the housing from behind Fitting introduced and pressed against the stop formed in it until it no longer continues.

If here in connection with the casing the valve is spoken from "back" and "front", so is referred to as the rear section of the armature of those in which the corrugated pipe cable is inserted. The front section of the fitting is the section in which the electrically insulating support body and the one held by it firmly in the housing arranged inner conductor contact part of the fitting.

Is by pressing the corrugated pipe cable against that in the housing the stopper formed the flanged flange, then becomes the sleeve under constant Pressure on the stop in the housing the fitting is form-fitting established. The positive locking prevents the sleeve to slide out of the back end of the case. Because the fingers of the sleeve in turn, form-fitting intervene in the first wave trough of the corrugated tube is in this way the corrugated pipe cable is fixed in the fitting or the fitting fixed on the corrugated pipe cable.

The positive connection between the housing and the sleeve in its front end position can be formed in different ways become. A cheap one possibility is that the sleeve on their outside has an annular groove in the front area of their fingers, in claim 9 referred to as the second annular groove, in which in the front end position the sleeve at least one projecting inward from the peripheral wall of the housing Part can intervene. The protruding part can be an annular Act rib, which is formed by that in the peripheral wall of the housing from the outside a groove is formed here. This can be done with an additional tool happen, which is integrated into the mounting device and after pressing the cable into the fitting is used. A different possibility is the housing the valve from the outside forth on some to indent the circumference of the places somewhat, which results in Inside of the peripheral wall result in projections, which in the Ring groove of the sleeve intervention. Such protrusions can also an additional tool integrated in the mounting device become.

However, it is particularly preferred to use a snap ring which is received in an annular groove in the inside of the peripheral wall of the housing. Since the snap ring can expand resiliently, the fingers of the sleeve can penetrate the snap ring when the corrugated tube cable is pressed into the fitting, expand it and advance further until the snap ring finally engages in the ring groove which is in the front area of the fingers of the Sleeve is provided. The position of the annular groove in the front region of the fingers of the sleeve and the position of the snap ring in the annular groove of the peripheral wall of the housing are to be coordinated with one another in such a way that the sleeve can in any case be pushed forward until the flanged flange is completely formed. The use of such a snap ring is particularly favorable because the positive connection, which establishes the tensile connection between the corrugated pipe cable and the fitting, occurs automatically when the cable is pressed into the fitting. Mounting the cable fitting on the corrugated pipe cable is then child's play: Insert the corrugated pipe cable into the sleeve and with it into the housing, push it forward until it stops, done!

A similarly favorable method of assembly allows one different design of the valve, in which in the front end position the sleeve the rear end of the case the fitting a little bit the rear end of the sleeve protrudes and the housing starting from its rear end two or more than two longitudinal slots has, by which fingers are formed, which with radially inwardly projecting tips springy on the outside the sleeve slide while this in the housing is pushed forward until it is finally behind the back edge the sleeve inwards springs and thus fix the front end position of the sleeve with a positive fit.

Another, but less elegant possibility is the length the sleeve so to choose that the rear end of the case in the front end position of the sleeve a little over the rear edge of the sleeve protrudes and the rear edge of the housing after pressing the Corrugated tube cable inwards to flare and thereby the sleeve to be positively fixed in their front end position.

In a particularly preferred embodiment the invention is the sleeve for the Valve is not supplied as a loose part, but is located already in the rear section of the valve body, where it is between caught a rear end position and its front end position and is slidable, with the housing in its rear portion where the fingers are in the rear end position of the sleeve, the fingers a greater distance from the peripheral wall of the housing than in its front end position, so that when you insert the Corrugated tube radially outwards can spring. This embodiment has the great advantage that the fitter can handle a valve on the construction site, which from the outset has been connected with all its parts is. The fitter only has to reach for the valve, slide it onto the prepared corrugated pipe cable, press the two together until it stops, done!

When inserting the corrugated pipe cable into the sleeve can their fingertips over move the first wave crest of the corrugated tube away because they casing in the rear end position of the sleeve the for springing open the wreath of the fingers offers the necessary space. The for overcoming the First wave crest of the corrugated tube required power intercept by moving the valve in the rear end position over the rear End of the case projecting rear portion of the sleeve while holding the corrugated tubing in the sleeve inserts until their fingertips engage in the first wave trough.

A more elegant way to absorb the strength which when inserting of the corrugated pipe cable to overcome the fingertips with the first wave crest must be applied in that the sleeve held in its rear end position by an insurmountable form closure is. The surmountable Form closure designed so that the force required to overcome it is bigger than the force that must be applied when the fingertips of the Sleeve the overcome the first wave crest of the corrugated tube cable. In this embodiment must the Fitter the sleeve when inserting not even hold the corrugated pipe cable anymore. The valve is delivered so that the sleeve is in its rear end position. If the corrugated pipe cable from behind introduced into the valve the cable first reaches the tips of the fingers of the sleeve, which are spread when the corrugated pipe cable is pushed forward, so that they overcome the first wave crest of the corrugated pipe and form-fit in compress the first wave valley. If the corrugated pipe cable is pushed forward is, for example, the fact that the jacket of the corrugated pipe cable a paragraph of the sleeve strikes, the sleeve taken away and the surmountable Form closure overcome. The corrugated pipe cable is with its corrugated pipe against the intended Stop pressed, thereby the flanged flange formed and the sleeve finally positively fixed in its front end position. The mechanic must on So just take the valve from the construction site, the prepared one Push in the corrugated pipe cable, press until it stops, finished! It's that easy.

The form-locking that can be overcome can be formed in that the sleeve has a first annular groove on its outside, in which, in the rear end position, at least one projection located on the inside of the peripheral wall of the housing engages. The cross-sectional shape of the annular groove and the shape of the projections determine how great the resistance is, which is opposed to overcoming the positive connection. In order to facilitate overcoming, the first groove preferably has flanks that do not run perpendicular to the longitudinal axis of the fitting, but rather flanks that run obliquely to the longitudinal axis, so that the projections can slide out of the first groove via an inclined surface. In addition, it is easier to overcome the positive locking if the projections are inclined obliquely in the longitudinal section against the longitudinal axis or have a curved surface. Crowned elevations are suitable, which can be pressed into the peripheral wall of the housing from the outside.

The first ring groove, which with the projections to form the insurmountable Form-locking should work together, is preferably in unslit section of the sleeve, preferably in such a place that it is in the rear end position the sleeve close to the rear edge of the case lies. That makes it possible a special design of the rear section of the housing defined overcoming of the form fit, for example by the fact that the rear section of the case, where mechanical stability is no longer critical. with reduced wall thickness is formed so that the projections bend open the rear Section of the housing easier to slide out of the first annular groove in the sleeve can. This can be supported by that the housing from the rear end to the protrusions, so that the ledges on tongues or on short fingers, which are a little behind Outside can spring.

When the sleeve is in its front end position is set by between the front ends of their fingers and the housing a positive connection is established then it is particularly convenient if the sleeve is dimensioned so that in its front end position with the rear edge of the housing flush concludes. This allows the fitter additionally an easy way determine that the assembly process is complete.

The ring-shaped stop against which that Corrugated tube is pressed during assembly, is preferably in front of one in the housing trained, inner, facing the sleeve, annular shoulder arranged and it is located between the shoulder and the stop one in the longitudinal direction resilient spring, which makes it possible that the stop moves back a little springy during assembly. This has the advantage of eliminating inaccuracies when cutting and preparing the front end of the corrugated tube cable, automatic can be compensated without that for a reliable Contact required pressure between the stop and the flange get lost. The spring that for is used for this purpose, is expediently ring-shaped, especially as a disc spring. A corrugated disc spring is particularly cheap, which is well suited for compensating bevel cuts.

The annular stop preferably has at least an axial extension, which is shorter than the relaxed Spring and which directed past the spring against the shoulder in the housing is. This has the advantage that the forces applied during the flanging Need to become, do not overload the spring can, but directly, bypassing the spring, introduced into the shoulder of the housing become.

In an advantageous development of the Invention carries that held by the insulating support body Inner conductor contact part a rearward, that is, the corrugated tube cable facing attachment part, which is held captive on the inner conductor contact part and in the direction of the longitudinal axis against a restoring force can be moved forward. This has the advantage of being hollow Can reliably contact the inner conductor of the corrugated tube cable on the end face. Fluctuations in the position of the front edge of the inner conductor of the Corrugated pipe cables can be compensated for in that the attachment part against a restoring force can dodge towards the front end of the case if the inner conductor of the corrugated pipe cable when it is pressed into the housing hits the neck part. For this purpose, the extension part is positioned in the housing that even in the worst-case scenario, in which the inner conductor of the corrugated pipe is too far back on everyone Case still hits the neck part and pushes it forward, the Way by which the attachment part can be moved easily can be measured that the position tolerances that occur in practice can be safely balanced.

In the state of the art, as it emerges from the DE 43 23 953 C2 results, such position tolerances are compensated for by the fact that the inner conductor contact part provided in the fitting penetrates more or less deeply into the hollow inner conductor of the corrugated tube cable with a spring bushing. However, this can lead to electrical loops which are undesirable because they degrade the high frequency transmission behavior of the fitting. In addition, it is difficult to insert the inner conductor contact part into the hollow inner conductor of the corrugated tube cable if its inner conductor is a tube with an internal thread. All of these problems can be avoided if you can reliably contact the inner conductor of the corrugated pipe at the end. This is exactly what the further development of the present invention described does, automatically when the corrugated tube cable is pressed into the fitting, which is particularly noteworthy because the process of contacting the inner conductor and the process of contacting the outer conductor cannot be checked by inspection.

There are different options for the specific design of the combination of a firmly positioned inner conductor contact part and a spring-mounted attachment part. A particularly favorable possibility is that the extension part has a ring of contact fingers which extend forward, that is to say in the direction towards the front end of the fitting, and that the inner conductor contact part has a lateral surface on which the contact fingers slide in a spring-loaded manner. Such an execution form not only allows the extension part to be moved in relation to the fixed inner conductor contact part in the direction of the longitudinal axis of the fitting, but also allows the inclination of the extension part to be changed relative to the longitudinal axis of the fitting, if necessary by widening the ring of contact fingers. This is advantageous because not only position inaccuracies in the direction of the longitudinal axis, but also an axial offset between the inner conductor of the corrugated pipe cable and the inner conductor contact part of the fitting can be compensated.

The described embodiment can be modified by partially reversing the functions so that that it is the inner conductor contact part that has a wreath of Has contact fingers, which in this case extend backwards, and that the attachment part has a lateral surface on which the contact fingers slide with spring pressure.

In both cases it is preferred that the contact fingers on the outside the lateral surface. Movable around the attachment part, but captive on the held To keep inner conductor contact part, it is preferred that the contact fingers have at their tip a projection directed against the lateral surface and that the outer surface at its rear end, one against the contact fingers Has collar so that the restoring force at most, the extension can slide until the protrusions Push the contact finger against the collar of the outer surface. An unintentional falling off of the This is not the end part of the inner conductor contact part possible.

The restoring force can be controlled by a Spiral spring exercised are clamped in the cage formed by the ring of contact fingers and the outer surface is. The lateral surface, on which the contact fingers slide resiliently can be cylindrical his. An easier way the restoring force to generate is given in a preferred embodiment in which the lateral surface one along the long axis has increasing diameter, so when the attachment is facing forward, this means is pushed towards the front end of the valve, the Wreath of contact fingers in the direction of increasing diameter of the lateral surface is moved and progressively spread, causing the restoring force increases. The use of a helical spring can be used in this embodiment to be dispensed with. However, a helical spring can also as in the case of a cylindrical lateral surface, can be used to the restoring force to increase.

Since the extension part relative to the inner conductor contact part make a tumbling motion can it is desirable the attachment part automatically to be able to center on the hollow inner conductor of the corrugated tube cable. To for this purpose it is preferably provided that the extension part has a insertion to introduce into the hollow inner conductor of the corrugated pipe cable and a stop part for attaching to the front edge of the inner conductor of the corrugated cable Has. The introductory part has a diameter at its tip, which is adapted to the constructively determined extent of The wobble of the attachment part is so slight that the attachment part definitely still find its way into the hollow inner conductor of the corrugated pipe place. Naturally When designing the valve, make sure that the Extent of Wobble, which is made possible by the attachment part, is not that big that the introductory part no longer the way into the hollow inner conductor of the corrugated cable can find because of the axial offset between the two got too big is.

A cheap way to train the attachment part, is that its introductory part Outside is conical, the contact being made by the conical insertion strikes against the inner edge of the front edge of the inner conductor of the cable. The assumes that the cone must have an outer diameter that partially is smaller and partly larger than the inside diameter of the inner conductor of the corrugated pipe.

In another advantageous embodiment is the outside diameter of the insertion part not bigger than the inside diameter of the corrugated cable and it closes to the insertion part a stop part, in particular a collar, which flat on strikes the front edge of the inner conductor of the corrugated tube cable.

Instead of an externally conical insertion part could also an outside crowned insertion part can be used, which is also suitable for automatically center the inner conductor of the corrugated tube cable and attach it to the Contact the inside edge of its front edge.

In another embodiment has the insertion part a lateral surface, the envelope of which is cylindrical is and has a chamfer at its tip, which an insertion of the insertion relieved in the hollow inner conductor of the corrugated cable. The introductory part can a cylindrical surface have, but he could also have a corrugated or ribbed outer surface that is made in one version an elastomeric material a seal of the inner conductor of the coaxial Cable.

In another embodiment the stop part has a second ring of contact fingers, which extends towards the tips of the contact fingers, which for making contact on the face of the inner conductor of the corrugated tube cable determined and therefore weird are directed towards the rear. The diameter on which the Wreath of contact fingers opens, is to be matched to the diameter of the inner conductor of the corrugated cable, so that contact is made on the end face.

In a further embodiment of the invention, the insertion part and the stop part are resiliently connected to one another, for example via a coil spring. The advantage lies in an easier compensation of axial misalignment between the stop part and the inner conductor of the corrugated pipe cable and also proves its worth when the insertion part is prevented from being inserted into the hollow inner conductor of the corrugated pipe cable.

An expanding wreath of contact springs for making contact on the face of the inner conductor of the corrugated tube cable can also be provided directly on the extension part without an additional insertion part use because such a wreath of contact fingers because of the compliance his contact finger automatically Can compensate for positioning inaccuracies.

The inventive design of the means for Inner conductor contacting has in its various embodiments essential advantages:

• - The Contact is made at the front edge of the inner conductor of the corrugated tube cable, especially on the flat face.
• - The Forehead contact is independent on the geometry of the inner cable.
• - inaccuracies position and orientation are automatically balanced.
• - It always gives a springy contact pressure
• - The contact resistance stays small.
• - The Contact is made at a clear reference level.
• - One electrical loops are avoided.
• - The RF transmission behavior is good.
• - Unwanted intermodulation are minimized.
• - The Assembly effort and assembly time are minimal.

Embodiments of the invention are included in the Drawings shown. In the different embodiments are the same and corresponding parts with the same Reference numbers designated.

1 shows a fitting according to the invention in a longitudinally cut oblique view,

2 shows a plate spring inserted in the valve in a side view,

3 shows the disc spring 2 in a top view,

4 shows the disc spring 2 in an oblique view,

5 shows a side view of a front section of a corrugated pipe cable prepared for the assembly of the fitting,

6 shows the valve half in a side view and half in longitudinal section, before the insertion of the corrugated pipe cable,

7 shows the fitting in a representation corresponding to the 6 with partially inserted corrugated cable,

8th shows the fitting in a representation corresponding to the 6 with fully inserted corrugated pipe cable,

9 shows enlarged as a detail, half in a side view and half in longitudinal section, the rear part of the inner conductor contact part used in the fitting with attached attachment part, before contacting the hollow inner conductor of the corrugated tube cable,

10 shows in a representation corresponding to the 9 the same elements, but after contact has been made on the inner conductor of the corrugated cable,

11 shows in a representation corresponding to the 10 the conditions in the event of a misalignment between the inner conductor of the corrugated pipe cable and the inner conductor contact part of the fitting,

12 shows in a representation corresponding to the 10 a variant of the combination of inner conductor contact part and extension part,

13 shows in a representation corresponding to the 10 another variant of a combination of an inner conductor contact part and an extension part,

14 shows in a representation corresponding to the 10 another variant of a combination of an inner conductor contact part and an extension part,

15 shows in a representation corresponding to the 10 another variant of a combination of an inner conductor contact part and an extension part,

16 shows in a representation corresponding to the 10 another variant of a combination of an inner conductor contact part and an extension part,

17 shows in a representation corresponding to the 10 another variant of a combination of an inner conductor contact part and an extension part and

18 shows in a representation corresponding to the 10 another variant of a combination of an inner conductor contact part and an extension part.

In the 1 shown fitting has a one-piece housing 1 made of metal. Instead of metal, the housing could also consist of metallized plastic. Approximately in the middle of the case 1 is a radially inwardly jumping shoulder on the inside of the peripheral wall of the housing 2 trained, in front of which an annular stop 3 is arranged. Between the stop 3 and the shoulder 2 is an annular spring 4 arranged, which is a corrugated disc spring, as in the 2 to 4 is shown in different views. The ring-shaped stop 3 has a cylindrical extension 5 , which is on the inner edge of the spring 4 over against the shoulder 2 extends and is shorter than the thickness of the relaxed disc spring 4 , so that the disc spring is relaxed 4 the extension 5 not reached the shoulder.

The attack 3 divides the housing into a rear section 1a and in a front section 1b , In the back section 1a is in the neighborhood of the attack 3 in the peripheral wall of the housing 1 an annular groove 6 , in which a snap ring 7 is arranged.

Also in the back section 1a of the housing a sleeve 8th arranged which in its front section 1b through a wreath of longitudinal slots into a wreath of fingers 9 is divided, which are equal in length to each other and at its front end a crest 10 have, which in the direction of the longitudinal axis 11 of the housing 1 protrude. The front section of the fingers 9 is opposite their rear section 9a thickened and on the outside with a second ring groove 12 provided, which is dimensioned in width and depth so that it the projecting part of the snap ring 7 can record. The rear, unslit part of the sleeve 8th is divided into a thicker front section 13 and a thinner rear section 14 , Between these two sections 13 and 14 is a step-like paragraph 15 educated. The inside diameter of the rear section 14 is the outside diameter of the sheath of the corrugated pipe cable ( 5 ) customized. In the front section 13 of the unslit part of the sleeve 8th there is a first annular groove with a trapezoidal cross section on the outside 16 in which convex protrusions 17 can immerse which near the rear edge of the housing 1 are formed on its wall, which for this purpose in an end section 18 of the housing 1 with reduced wall thickness.

For sealing the sleeve 8th towards the housing 1 is in the section 13 the sleeve on the outside another ring groove with an O-ring 19 , For sealing the sleeve 8th opposite the corrugated pipe cable is in the section 13 the sleeve 8th on the inside another ring groove with an O-ring 20 ,

In the in 1 shown position of the sleeve 8th are their fingers 9 at some distance from the peripheral wall of the housing 1 so the fingers 9 can spring outwards. Immediately in front of the fingers 9 the clear width of the housing narrows 1 to a smaller diameter; there is a conical transition surface between the section with the larger clear width and the section with the smaller clear width 21 ; the section adjoining them with less clear width carries and guides the annular stop 3 ,

In the front section 1b of the housing, which is opposite the rear section 1a has a significantly smaller clear width, is a cylindrical support body 22 made of electrically insulating material, in particular PTFE. In this support body 22 is a metallic inner conductor contact part 23 embedded in a form-fitting manner, in one to the longitudinal axis 11 coaxial arrangement. The inner conductor contact part 23 protrudes from the support body on both sides 22 out; the section projecting towards the front serves in a manner known per se to make contact with the inner conductor of a mating connector which cooperates with the fitting. The one from the back of the support body 22 protruding part of the inner conductor contact part 23 wears a neck part 24 , which is captive on the inner conductor contact part 23 held in the direction of the longitudinal axis 11 can be moved and tilted in all directions by an acute angle. The spring force acts so that it is the attachment part 24 towards the rear end of the case 1 tried to press.

The structure of the inner conductor contact part 23 and the related part of the approach 24 is also in the 9 to 11 shown. The one from the support body 22 protruding section of the inner conductor contact part 23 has an outer surface 26 , which initially tapers and then merges into a cylindrical section which is on a collar 25 ends, which is directed radially outward. Also contains the inner conductor contact part 23 a blind hole 27 which is open towards the back. The approach part 24 has a collar in the middle 28 , on the front of which a wreath 29 of contact fingers, which have radially inward projections at their tips 30 have which on the collar 25 strike, causing the attachment part 24 captive on the inner conductor contact part 23 is held. However, it can be deflected from the coaxial orientation (see 11 ), what for the wreath 29 is expanded elastically by contact fingers if necessary. The collar closes to the rear 28 a radially stepped conical section 31 which can be inserted into the hollow inner conductor of the corrugated tube cable and therefore also as an insertion part 31 referred to as. In the introductory part 31 there is a stepped hole 32 which is open towards the front.

In the graded hole 32 and the blind hole 27 as well as the wreath of contact fingers 29 formed cage is a coil spring 33 clamped against the restoring force the attachment part 24 the support body 22 can be approximated.

On the outside of the front section 1b there is a union nut on the housing 34 which is between an outer shoulder 35 and a snap ring 36 which is in a groove on the outside of the front section 1b is captive.

Under the union nut is against another outer shoulder 39 positioned, a sealing ring 38 , which becomes effective when the valve is connected to a mating connector.

The fitting shown fits a corrugated pipe cable 40 as it is in 5 is shown. It has a coat 41 which is on a corrugated pipe 42 made of metal. The corrugated pipe 42 has a regular succession of wave crests 43 and wave valleys 44 , In the corrugated pipe 42 a tubular inner conductor runs coaxially 45 which in 8th can be seen. Between the inner conductor 45 and the corrugated pipe 42 there is a dielectric material 46 , mostly made of a foam plastic, which is why it is also called a foam dielectric. The foam dielectric 46 extends on the outside of the inner conductor 45 down to the valleys 44 of the corrugated pipe 42 , please refer 8th , The corrugated pipe cable is used to prepare the assembly of the valve 40 in one to the longitudinal axis 11 right-angled plane cut bluntly and freed from the cable sheath for a predetermined length, see 5 ,

The 6 to 8th show three phases of assembly: 6 shows the valve before the corrugated pipe cable is inserted 40 ; the sleeve 8th is in its rear end position and looks a little further out of the housing 1 out. Then the corrugated pipe cable 40 introduced meets the tops 10 the finger 9 , it bends radially outward so that the crests 10 the first wave crest 43 overcome, form-fitting in the first wave valley 44 compress and, as in 7 shown on the valley floor and against the next wave crest 43 leaned, come to rest. If the corrugated pipe cable is pushed forward 40 beats his coat 41 on the paragraph 15 the sleeve 8th and takes this with, the positive connection between the sleeve 8th and the crowned protrusions 17 which in the second ring groove 16 the sleeve 8th lie, is overcome. The sleeve 8th and the corrugated pipe cable 40 move forward together against the annular stop 3 until it compresses the spring 4 with its extension 5 on the shoulder 2 strikes, see 8th , The first wave crest 43 against the attack 3 compressed and to form a flanged flange 47 unfolded. At the same time, the thickened end of the fingers 9 by means of an external inclined surface 9b over the snap ring 7 lifted, which then in the second ring groove 12 the finger 9 clicks into place, see 8th , The rear edges of the sleeve 8th and the housing 1 are now essentially flush with each other.

Simultaneously with the flaring flange 47 the inner conductor contact is made as with the 9 to 11 shown. 9 shows the front end of the corrugated tube 42 with part of the wall of the inner conductor 45 and part of the foam dielectric 46 when approaching the attachment part 24 , The approach part 24 penetrates when the corrugated pipe cable is pushed forward 40 into the tubular inner conductor 45 one until the collar 28 at the front edge of the inner conductor 45 strikes ( 10 ). Any misalignments can be compensated for, such as 11 illustrated because the attachment part 24 limited wobble on the inner conductor contact part 23 is held. The compression of the helical spring when contacting the inner conductor 33 in connection with the elastic spreading of the wreath 29 of contact fingers ensures the necessary contact pressure on the inner conductor 45 ,

This is the assembly of the valve terminated on the corrugated pipe cable.

This in 12 illustrated embodiment differs from that in 10 illustrated embodiment in that between the attachment part 24 and the inner conductor contact part 23 no helical spring is clamped. In this exemplary embodiment, the restoring force exerted on the attachment part is rather caused solely by the fact that the inner conductor contact part 23 on the back side of the support body 22 is tapered away from this, so that the wreath 29 of contact fingers when approaching the attachment part 24 to the support body 22 is resiliently expanded, which generates the repelling force.

This in 13 illustrated embodiment differs from that in 10 illustrated embodiment in that the inner conductor contact part 23 instead of a conical surface, a cylindrical surface 26 has and that the attachment part 24 on his the corrugated pipe cable 40 end facing no conical insertion part 31 but has an expanding wreath 48 of contact springs, which have a largest diameter, the diameter of the tubular inner conductor 45 is adjusted so that the contact springs of the wreath 48 resilient to the face of the inner conductor 5 can put on.

This in 14 illustrated embodiment differs from that in 13 illustrated embodiment in that instead of the wreath 48 a special introductory part 31 tumble but captive on one in the tubular inner conductor 45 protruding pin 49 is held.

This in 15 illustrated embodiment differs from that in 13 illustrated embodiment in that the attachment part 24 is conical and its conical surface on the inner edge of the front edge of the inner conductor 45 is applied.

This in 16 illustrated embodiment differs from that in 15 illustrated embodiment in that the attachment part 24 has a spherical surface instead of a conical surface.

This in 17 illustrated embodiment differs from that in 15 illustrated embodiment in that the conical neck part 24 still with an insertion part 31 is coupled, which is by means of a coil spring 50 deflectable with the stop part 51 of the attachment part 24 connected is.

This in 18 illustrated embodiment differs from that in 13 illustrated embodiment in that the wreath 48 of contact springs around an insertion part protruding beyond it 31 is supplemented, which has a corrugated outer surface with a cylindrical envelope, consists of an elastomeric plastic and the tubular inner conductor 45 can seal.

1

casing

1a

rear section of 1

1b

front section of 1

2

shoulder

3

attack

4

feather

5

extension

6

Ring groove in 1a

7

snap ring

8th

shell

9

finger

9a

rear section of 9

9b

sloping surface

10

knoll

11

longitudinal axis

12

Second ring groove

13

front section of the unslit portion of 8th

14

rear section of the unslit part of 8th

15

Paragraph between 13 and 14

16

1. ring groove

17

crowned head Start

18

end

19

O-ring

20

O-ring

21

conical transition surface

22

support body

23

Inner conductor contact member

24

extension part

25

Collar 23

26

Lateral surface of 23

27

blind

28

Collar 24 , Stop part

29

wreath of contact fingers

30

Ledges 29

31

insertion

32

graded hole

33

coil spring

34

Nut

35

outer shoulder

36

snap ring

37

38

seal

39

Further outer shoulder

40

Corrugated tube cable

41

coat

42

corrugated pipe

43

Wellenberg

44

trough

45

inner conductor

46

dielectric material

47

bead flange

48

Wreath of contact fingers 24

49

pen

50

coil spring

51

stop part

Claims (37)

Armature for a coaxial corrugated pipe cable ( 40 ), the corrugated pipe ( 42 ) has an annular corrugated outer surface, with a housing ( 1 ), which has a longitudinal axis ( 11 ) with a corrugated pipe ( 42 ) Surrounding the sleeve ( 8th ), which is longitudinally displaceable from the rear into a front end position and in which a ring of fingers is formed by longitudinal slots ( 9 ) is formed, which each have a crest ( 10 ) to have; with which they enter a wave valley ( 44 ) of the corrugated pipe ( 42 ) engage with one in the housing ( 1 ) provided annular stop ( 3 ) for the front edge of the corrugated pipe ( 42 ) to which stop ( 3 ) the finger ( 9 ) the sleeve ( 8th ) are moved when the sleeve ( 8th ) is moved into its front end position, the fingers ( 9 ) the sleeve ( 8th ) between the corrugated pipe ( 42 ) on one side and the peripheral wall of the housing ( 1 ) on the other side, and with an inner conductor contact part ( 23 ), which by means of an electrically insulating support body ( 22 ) in the front section ( 16 ) of the housing ( 1 ) held, centered and against the housing ( 1 ) is insulated, characterized in that the housing ( 1 ) is formed in one piece, and that the sleeve ( 8th ) in its front end position in the housing ( 1 ) to avoid movement in the direction of the longitudinal axis ( 11 ) can be positively fixed. Fitting according to claim 1, characterized in that the sleeve ( 8th ) in a rear section ( 1a ) of the housing ( 1 ) is caught between a rear end position and the front end position and that the housing ( 1 ) in its rear section ( 1a ) where, in the rear end position of the sleeve ( 8th ) whose fingers ( 9 ) the fingers ( 9 ) a greater distance from the peripheral wall of the housing ( 1 ) than in their front end position so that they can be used to insert the corrugated tube ( 42 ) can spring radially outwards, Fitting according to claim 2, characterized in that the sleeve ( 8th ) is held in its rear end position by an insurmountable form closure. Fitting according to claim 3, characterized in that the sleeve ( 8th ) one on the outside first ring groove ( 16 ), in which in the rear end position at least one on the inside of the peripheral wall of the housing ( 1 ) existing projection ( 17 ) intervenes. Fitting according to claim 4, characterized in that the first annular groove ( 16 ) in which to the fingers ( 9 ) subsequent section of the sleeve ( 8th ) is located. Fitting according to claim 4 or 5, characterized in that the at least one projection ( 17 ) in the vicinity of the rear edge of the housing ( 1 ) is located. Fitting according to claim 6, characterized in that the at least one projection ( 17 ) on an end section ( 18 ) the peripheral wall of the housing ( 1 ), which has a reduced wall thickness. Fitting according to claim 6 or 7, characterized in that the at least one projection is on a finger, which through longitudinal slots is formed, which start from the rear edge of the housing. Fitting according to one of the preceding claims, characterized in that the sleeve ( 8th ) on the outside in the front area of your fingers ( 9 ) a second ring groove ( 12 ) in which in the front end position of the sleeve ( 8th ) at least one of the peripheral wall of the housing ( 1 ) inwardly projecting part ( 7 ) can intervene. Fitting according to claim 9, characterized in that the at least one projecting part by pressing in from the outside of the peripheral wall of the housing ( 1 ) is formed. Fitting according to claim 9, characterized in that the projecting part is a snap ring ( 7 ) which is in an annular groove ( 6 ) inside the peripheral wall of the housing ( 1 ) is included. Fitting according to one of the preceding claims, characterized in that the sleeve ( 8th ) in their rear end position, but not in their front end position, over the rear edge of the housing ( 1 ) protrudes. Fitting according to claim 12, characterized in that the housing ( 1 ) in the front end position of the sleeve ( 8th ) protrudes beyond the rear end. Fitting according to claim 9 and 12 or 10 and 12 or 11 and 12, characterized in that the sleeve ( 8th ) in its front end position with the rear edge of the housing ( 1 ) ends flush. Fitting according to one of the preceding claims, characterized in that the annular stop ( 3 ) in front of one in the housing ( 1 ) trained, inner, the sleeve ( 8th ) facing annular shoulder ( 2 ) is arranged and that between the shoulder ( 2 ) and the stop ( 3 ) one in the longitudinal direction ( 11 ) yielding spring ( 4 ) is located. Fitting according to claim 15, characterized in that the spring ( 4 ) is ring-shaped. Fitting according to claim 16, characterized in that the spring ( 4 ) is a disc spring. Fitting according to claim 17, characterized in that the disc spring ( 4 ) is curled. Fitting according to one of claims 15 to 18, characterized in that the annular stop ( 3 ) at least one extension ( 5 ) which is shorter than the relaxed spring ( 4 ) and on the spring ( 4 ) over against the shoulder ( 2 ) is directed. Fitting according to one of the preceding claims, characterized in that the insulating support body ( 22 ) held inner conductor contact part ( 23 ) a rearward, ie the corrugated pipe cable ( 40 ) facing attachment part ( 24 ) which is captive on the inner conductor contact part ( 23 ) and in the direction of the longitudinal axis ( 11 ) can be moved forward against a restoring force. Fitting according to claim 20, characterized in that the extension part ( 24 ) a wreath of contact fingers ( 29 ) which extend forward and that the inner conductor contact part ( 23 ) a lateral surface ( 26 ) on which the contact fingers ( 29 ) slide with spring pressure. Fitting according to claim 20, characterized in that the inner conductor contact part has a ring of contact fingers, which extend to the rear, and that the attachment part is a Shell surface, on which the contact fingers slide resiliently pressed. Fitting according to claim 21 or 22, characterized in that the contact fingers ( 29 ) on the outside of the outer surface ( 26 ) lie. Fitting according to one of claims 21 to 23, characterized in that the contact fingers ( 29 ) at their tip against the surface ( 26 ) directed projection ( 30 ) and that Lateral surface ( 26 ) at its rear end against the contact fingers ( 29 ) directed collar ( 25 ) Has. Fitting according to one of claims 21 to 24, characterized in that the lateral surface ( 26 ) is cylindrical and between the inner conductor contact part ( 23 ) and its attachment part ( 24 ) in the wreath of the contact fingers ( 29 ) and the outer surface ( 26 ) formed cage a coil spring ( 33 ) is clamped. Fitting according to one of claims 21 to 24, characterized in that the lateral surface ( 41 ) one along the longitudinal axis ( 11 ) has increasing diameter. Fitting according to claim 26, characterized in that between the inner conductor contact part ( 23 ) and its attachment part ( 24 ) in the wreath of the contact fingers ( 29 ) and the outer surface ( 26 ) formed cage a coil spring ( 33 ) is clamped. Fitting according to one of claims 20 to 27, characterized in that the extension part ( 24 ) an introductory part ( 31 ) for insertion into the hollow inner conductor ( 45 ) of the corrugated pipe cable ( 40 ) and a stop part ( 51 ) for attaching to the front edge of the inner conductor ( 45 ) of the corrugated pipe cable ( 40 ) Has. Fitting according to claim 28, characterized in that the insertion part ( 31 ) is conical on the outside. Fitting according to claim 28, characterized in that the insertion part ( 31 ) is crowned on the outside. Fitting according to claim 28, characterized in that the insertion part ( 31 ) has a lateral surface, the envelope of which is cylindrical, with a chamfer at its tip for easier insertion into the hollow inner conductor ( 45 ) of the corrugated pipe cable ( 40 ). Fitting according to one of claims 20 to 31, characterized in that the stop part is a collar ( 25 ) is. Fitting according to claim 32, characterized in that the collar ( 25 ) to the insertion part ( 31 ) connects. Fitting according to claim 29 or 30, characterized in that the stop part on the insertion part ( 31 ) lies. Fitting according to claim 28, characterized in that the stop part has a second ring of contact fingers ( 48 ), which widens towards the fingertips, which for contacting on the face of the inner conductor ( 45 ) of the corrugated pipe cable ( 40 ) are determined and therefore directed obliquely backwards. Fitting according to one of claims 28, 31 and 32, characterized in that the insertion part ( 31 ) and the stop part ( 51 ) are resiliently connected. Fitting according to one of claims 20 to 27, characterized in that the extension part ( 24 ) a second ring of contact fingers ( 48 ), which widens towards the fingertips, which for contacting on the face of the inner conductor ( 45 ) of the corrugated pipe cable ( 40 ) are determined.