KR20070001089A - Optical cable connector element comprising improved means for blocking the end section of the cable to be connected - Google Patents

Abstract

The invention relates to an optical cable connector element comprising improved means for blocking the end section of the cable to be connected. The inventive connector element comprises: a casing-forming body (31) which is equipped with at least one slot (33) for receiving the optical cable (7), and means (40) for blocking the optical cable in said slot. The aforementioned blocking means (40) comprise at least one axial (X) spring tang (50) which is solidly connected to an inner wall of the slot (33) by means of a cantilevered rear section, the front of said tang (50) having a sharp edge (49) such that: (i) the tang can undergo radial displacement when the cable (7) is inserted into the slot (33) and (ii) an extraction movement causes the aforementioned sharp edge (49) to penetrate a peripheral sheath (29) of the cable, thereby holding the latter in the body. ® KIPO & WIPO 2007

Description

OPTICAL CABLE CONNECTOR ELEMENT COMPRISING IMPROVED MEANS FOR BLOCKING THE END SECTION OF THE CABLE TO BE CONNECTED}

The present invention has at least one socket for receiving an end section of an optical cable, the socket extending along an axis and along the axis one casing forming body having a rear end for insertion and a front end for connection of the optical cable; And means for blocking an end section of the optical cable inside the socket.

It is known in the art to use a tip, commonly referred to as a "ferule," to secure one end of the optical cable inside the connector casing. Typically such a tip is almost in the form of a tube, inside which there are joining grooves on the peripheral sheath of the optical cable, and outside there is a means for hanging in the connector casing. Thus, prior to inserting one end of the cable into the connector, it is necessary to perform a joining action that joins the tip on the peripheral sheath of the cable, on which the tip is subjected to plastic deformation. Such tips are typically made of plastics material. Such a tip is known from German patent DE 101 31 273.

It is an object of the present invention to omit mainly the bonding action prior to inserting one end of the optical cable into the casing of the connector, thus suggesting means for blocking such end of the optical cable in the connector casing which operates without prior bonding. There is.

The object is achieved by the present invention, and in accordance with the present invention, in a connector element of the type described above, the blocking means comprise at least one particularly axially resilient thin plate, which thin plate is inclined to the cantilever towards the front. It is firmly coupled to the inner wall of the socket by the rear section of the thin plate, which has a front hanging section which provides a sharp edge which rotates radially inwardly, so that the insertion when inserting the end section of the optical cable into the socket On the dragon end side, the hanging section can be radially displaced outwards, the reverse movement leading out of the cable section allows the sharp edge to penetrate in the peripheral sheath of the cable section, thus allowing the cable section to be fixed in the body. do.

Thanks to this arrangement, the blocking of the end section of the optical cable which is connected inside the body of the connector element is realized simply and quickly without the need for other operation by inserting the cable section axially inside the socket. In addition, the fixing of the cable end section is detachable, and the detachment is carried out without damaging the ferules or the connector casing.

Preferably, the connector element according to the invention provides one or more of the following properties.

The blocking means consist of one loop fixed inside the body, in which the elastic sheet is formed axially, the loop providing a rear end for insertion of the cable section and a hooking section at the front,

The loop is flared at the rear end,

The ring is generally a general shape of a nearly truncated cone,

The loop comprises fastening means in the connecting casing, the fastening means being provided on the peripheral edge of the rear end side,

The ring is radially elastically deformable, the fastening means being fastening means by elastic coupling,

The loop is generally in the shape of a rotor, in particular formed of axial strips forming elastic thin plates, the elastic strips being alternately connected to each other at the insertion end and the opposite end,

The loop consists of a single flake of metal material, in particular by cutting and bending.

According to a first embodiment of the invention, the connector element comprises a tip for connecting the optical cable, comprises a tubular body forming a casing, and is engaged on the optical cable end section.

According to the first embodiment, the connector element may comprise any of the following characteristics:

The body comprises at least two tubular sections, the first section having a larger inner space therein for receiving the loop and having further fastening means of the loop, the second section for connecting the end of the optical cable To accommodate,

The first section generally has a partial truncated conical shape inside, and the end with the smallest diameter of the first section is opened into the second section.

According to the first embodiment of the present invention, the connector element is composed of one part of the connector which is to be engaged with one corresponding part of the connector.

According to this second embodiment, the connector element can comprise any of the following characteristics:

The socket provides at least two tubular shaped parts, the first part having a larger inner space therein for receiving the ring and having fastening means for the ring, the second part being the connecting end of the optical cable To accommodate,

The first part of the tubular shape generally has a partial truncated conical shape inside, the end of the smallest diameter of the first part of the tubular shape being open towards the second part of the tubular shape,

The socket has a section for guiding the cable at the inlet, a section for holding the cable, and a sectioning and holding section cable with a stop shoulder therein acting in the direction of the cable insertion.

As a variant, the connector element according to the second embodiment may comprise a tip as described above, which is preferably fixed by elastic engagement inside the socket.

The above-described invention also makes it possible to ensure a more accurate and more stable positioning of the optical cable end section to be connected in the body of the connector element.

Specific embodiments of the present invention are described in more detail with reference to the accompanying drawings.

1 is a rear perspective view of an optical connector including blocking rings according to the present invention, in which two parts are shown separated from each other.

FIG. 2 is a cross sectional view of the connector of FIG. 1 in the axial plane of the socket along direction 2-2, with the connector assembled; FIG.

3 is an enlarged perspective view of a blocking ring according to the present invention, as shown in the connector of FIGS. 1 and 2;

4 is a cross-sectional view of the axial plane of the ring of FIG. 3 in an axial plane along the 4-4 direction;

Figure 5 is an enlarged view of one plane of the ring of Figures 3 and 4;

Fig. 6 is a rear perspective view of only the male portion of the connector of Fig. 1, and the blocking rings are shown in the insertion standby position with their sockets removed.

Fig. 7 is a sectional view similar to that of Fig. 2 of the male portion of the connector of Fig. 6, with the blocking rings located in their respective sockets, and the end sections of the cables to be connected are indicated in the insertion standby position with their connectors removed from the casing of the connector.

Fig. 8 is a rear perspective view of the connecting tip according to the present invention including the blocking ring as shown in Figs. 3 and 4, which are marked in the insertion standby position with the ring removed from the tip.

Fig. 9 is a cross sectional view of the tip of Fig. 8 in an axial plane along the 9-9 direction, with the ring located in the socket.

FIG. 10 is a similar view in an axial plane offset 45 degrees with respect to the plane of FIG. 9 about axis X along the 10-10 direction.

Figure 11 is a view similar to Figure 9 with the end section of the optical cable to be connected being inserted into and connected to the tip.

12 is a cross sectional view of the male portion of the connector including a tip as shown in FIGS. 8 and 9;

Figure 13 is a sectional view in the same plane of the male portion of the connector of Figure 12 combined with a corresponding portion of the connector.

1 and 2 are optical connectors consisting of a male portion 3 which may also be referred to as a "male connector" and a female portion 5 which may also be referred to as a "female connector" hereafter. (1) is shown. The two parts 3, 5 of the connector on FIG. 1 are shown in a separated state while in FIG. 2 they are shown in a coupled state.

The female connector 5 consists of one substrate mounted on a support of an optoelectronic circuit, such as a card in the example shown.

The connector 1 shown is a two-passage connector adapted to connect two optical cables, the connecting end sections of the connector being shown in the optoelectronic circuit with reference numeral 7 in FIGS. 1 and 2. .

It goes without saying that the present invention applies to the connection between the optical cables in the same way or to the connectors connecting the optical cable to all other components of the optical circuit. It goes without saying that the present invention is also applied to an optical connector having any number of passages.

1 and 2, the axis X represents the joining direction of the two parts 3 and 5 of the connector, and the direction in which the end of the cable 7 is inserted into the part of the corresponding connector 3, and the axis X thereof. ) Is directed from the male part 3 of the connector towards the female part 5.

In all cases below, terms relating to orientation and position, such as "front" or "rear", will be referenced to the axis.

The female connector 5 comprises in particular a plastic casing 11 and an optical element 13 which is fixed inside the casing and which is to be connected to each cable 7. The optical elements 13 may for example be optical transmitters, such as diodes, or optical receivers, for example photoelectric converters.

The casing 11 has a base 15, in which the optical elements 13 are fixed therein, and a peripheral skirt which internally sets a cavity 19 for receiving the male connector 3 with a general shape of parallelepiped shape. It consists of a part 17.

One side opens into the cavity 19, and in the opposite side an axial cylindrical guide conduit 20 is formed in the bottom 15 of the casing towards the active part (the transmitter and the receiver) of each optical element 13. It is.

It can be seen that the casing 11 is formed of a tab 21 for fixing on the support, which tab protrudes to the side of the skirt portion 17 and has at least one centering pin 23 on the support. .

In the drawings, in particular in Figures 1 and 2, the cables 7 shown are so-called "monofiber" cables, each cable extending in a coaxial manner, forming an optical waveguide and a core of the cable. One fiber 27, an intermediate peripheral sheath 28 covering the fiber 27, and an outer peripheral sheath 29 covering the intermediate sheath 28.

It is no wonder that other types of optical cables, in particular multiple fiber cables or cables with different numbers of peripheral sheaths around one or more fibers, are also suitable for the implementation of the present invention.

In the example shown, the end section of the cable 7 to be connected with the connector is "stripped" from the front end to the desired length. The fibers 27 have no peripheral shells 28, 29 at their exposed portions 30. Thus, the exposed part of the end of the cable 7 has an outer diameter smaller than the outer diameter of the remaining unexposed part.

The male connector 3 will be described in more detail with reference to FIGS. 1 and 2.

The male connector 3 comprises a casing 31 in the form of a substantially parallel hexahedron made of plastic and having a contour complementary to the cavity 19 of the casing 11 of the female connector 5. The casing 31 is formed of two sockets 33 which receive the end sections of each cable 7, each socket 33 forming a passage between the front and rear of the casing 31. .

Each socket 33 extends in the axial direction inside the casing 31, and on an axial plane such as the plane of FIG. 2,

The inlet section 33A of the socket,

A truncated first section 33B,

A truncated second section 33C, and

Cylindrical front section (33D)

It includes.

The larger diameter base of each of the two truncated sections 33B, 33C is turned to the rear, and the larger diameter of the second truncated section 33C is the same as that of the first truncated section 33B. It has a smaller diameter than the smaller base. The smallest diameter of the truncated second section 33C approximately matches the outer diameter of the shell 29.

On the front side, the casing comprises two tubular parts 35 in the form of a front projection, which parts form the front section 33D of each socket therein. The tubular portion 35 is adapted to enter the shaft 20 in a form facing each other when the male connector 3 and the female connector 5 are engaged.

The casing 31 also has a releasable blocking device 37 at the position where the two parts 3, 5 of the connector are engaged on one of the casing faces. In the example shown, the blocking device 37 is in the form of a displaceable resilient tab, having a hook 38 in the form of an outward projection, and engaged with a complementary groove formed in the skirt portion 17. All. Thus, the blocking device 37 is a blocking device that is elastically coupled.

As shown in Fig. 2, on the other hand, the male connector 3 is located inside each socket 33, in particular in the first section 33B of the truncated cone shape, of each optical cable 7 fixed in the casing. Blocking ring 40 of the end section. The ring 40 makes it possible to bear the end section of the corresponding cable in the fully engaged position in the casing 31, as shown in FIG. 2. In such a fully engaged position the connecting end of the fiber 27 reaches horizontally at the end of the tubular portion 35. Indeed, the ends of the fibers 27 slightly pass over the front face of the tubular portion 35 in insertion into the casing, but are then planarized and numbered by grinding or so-called "hot-plate" processes. Peace. As such the fiber ends are positioned and fixed in an accurate and stable manner.

3 and 4, the ring 40 will be described in more detail on the assumption that it is oriented along the axis X at a position engaged in the socket 33. As shown in FIG.

The blocking ring 40 has a general shape of a truncated cone, with the larger base facing backwards.

The rear peripheral edge 41 forms a larger base and is formed of four tabs 43 projecting rearward, which tabs are equally curved radially outwardly outward. The tabs 43 are regularly arranged on the periphery rim 41 and are thus spaced 90 degrees from each other.

One axial groove 45 is formed between the two consecutive tabs 43 from the rear rim 41 over most of the length of the ring 40. The four grooves 45 thus formed are regularly positioned around the ring 40 in an alternating manner with the tabs 43.

The ring 40 is clamped in the axial direction toward the smaller diameter base formed by the front peripheral edge 47. Thus, the peripheral wall that forms the ring on the front section of the ring 40 is more inclined with respect to the axis X.

In addition, four axial grooves 48 are formed which open to the front rim 47 over the main length of the ring 40. The grooves 48 alternate with the grooves 45 at regular intervals on the periphery of the ring about axis X such that the grooves 48 are in contact with the corresponding protruding tabs 43. Aligned in the direction.

By alternately arranging the grooves 45 and 48 in the axial direction, the ring 40 is elastically deformed against bending in the front by opening the edge 47 or rearward by fastening the edge 41 on the shaft. You get

In practice the ring 40 is radially elastically deformable and the strip 50 behaves like a flexible beam under applied force. This applied force occurs when the loop engages into the corresponding socket 33 on the insertion end side of the cable, ie the rear edge 41 side, or when the cable is inserted into the loop, and the applied force is then forward It is directed radially outward in the region of the rim 47.

When the front edge 47 is deformed radially outward by the insertion of the cable 7, under the influence of the elastic restoring force, which tends to force the front edge 47 radially towards the axis X, The front rim 47 forms a sharp edge which is intended to penetrate the peripheral sheath 29 of the cable 7 through its inner edge 49.

As is more evident in FIG. 5, which shows a planar development of the ring 40, the ring is in particular formed of eight axial strips 50, the strips alternately two by two at the rear rim 41 side and the front rim. On the 47 side, that is, on the insertion end side and the opposite end side of the optical cable 7 respectively.

The ring 40 is preferably formed in a single piece from a metal sheet or strip, such as elastic steel, in particular by cutting and bending in turn. The metal strip or sheet cut to form the ring 40 as described above has the form shown in FIG. 5 prior to the bending process.

Referring again to FIGS. 1 and 2, the inlet section 33A of each socket 33 provides four axial grooves 52A disposed at regular intervals around the housing to accommodate the tabs 43. The axial grooves 52A open forward on the peripheral shoulder 53. The shoulder 53 internally forms an inlet or a larger diameter base of the first section 33B of the truncated cone shape and forms a braking device for the tabs 43 of the insertion of the ring 40 in the socket 33. do.

Along the periphery, inclined surfaces 52B are formed which alternately with the axial grooves 52A, in particular, are inclined towards the axis X from the rear to the front. The inclined surfaces 52B open forward (not shown) on the widened section and form an elastic engagement groove for the rear rim 41 of the ring.

Similarly, it may be better understood by noting the parts specified with reference to FIG.

Nevertheless, as already stated, the tab 43 forms a means for securing the ring 40 in the socket 33 of the casing 31 and is extended by a section extending between the shoulder 53 and the inlet slope 52. It can be understood that it operates by elastic coupling in the groove of the formed socket inlet 33A.

Referring now to FIGS. 6 and 7, a wiring scheme of the male connector 3 will be presented, showing that the end sections of the cable to be connected can be quickly fixed in the male connector without having to pre-fit on the tip.

In Fig. 6 the blocking rings 40 are shown removed from their respective sockets 33 and waiting to be inserted into the casing 31.

The rings 40 are inserted into the casing 31 prior to the wiring of the connector. The loops engage the tabs 43 in the grooves 52A of the socket inlet 33A and are inserted into the respective sockets 33, and the insertion end of the cable, which is the flared end of the loop, naturally goes backwards. Go back.

While one loop 40 is inserted into its socket 33, the rear end of the strips 50 progressively along the slopes 52B until the edge 41 engages the groove formed by the expanded section. Bent radially inward toward the inside, and the tabs 43 are seated parallel to the shoulder 53. Thus, the strip 50 is rapidly returned to the seating position by radial elastic recovery toward the outside of the rear rim 41.

Thus, the ring 40 is fixed in its working position, in the casing 31 inside the socket 333, and more particularly in the first section 33B in the shape of a truncated cone. Since radial play is provided between the ring 40 and the inner wall of the socket 33 at the front end side of the ring 40, the radially displaced outward portion of the front of the ring 40 is internal to the socket 33. You will find it possible.

As shown in FIG. 7, when inserting the section of the cable 7 which has been stripped of the portion 30 on its length, the peripheral shell 29 radially faces the front portion of the ring 40 outward. Elastic deformation. To this end, the minimum diameter of the ring formed by the edge 49 is smaller than the outer diameter of the peripheral shell 29.

As shown in FIG. 2, the insertion of the cable 7 end section into the casing 31 is the front shoulder 63 corresponding to the base of the smaller diameter of the truncated second section 33C of the socket 33. The ends of the sheath 29 are in parallel contact and limited. In this position where the cable 7 is fully inserted, the stripped section 30 of hemp oil 27 extends in the section 33D of the socket, the free end of the fiber being parallel to the end of the tubular part 35. On the other hand, the sheathed portion of the cable extends to the remaining sections 33A, 33B, 33C of the socket, so it naturally extends out of the casing.

In such an operating position, the four parts of the sharp edge 49 separated by the grooves 48 act like a fastener clamped tightly on the peripheral sheath 29 of the cable 7 and the cable 7 is present. By virtue of the elastic deformation of the ring 40 due to the gap between the bites, the sharp edges 49 radially returning to the inside (toward the axis X) penetrate the peripheral shell 29 of the cable. I can understand it.

Thus, applying traction on the cable 7 to remove its end section from the casing 31, the axial strips 50 are bent and the front rim 47 is radially dragged in the direction of the axis X, This further increases the resistance to cable pull exerted by the front rim 47. That is, the movement of the cable 7 out of the fully inserted position as shown in FIG. 2 causes the sharp edge 49 to penetrate further into the peripheral sheath 29 and thus further retain the sheath within the ring 40. do.

On the other hand, it can be easily understood that when such traction is applied on the cable 7 by the groove formed in the rim 41 and the socket inlet 33A, it is ensured to retain the ring 40 in the socket 33.

Thus, the ring 40 has an axial end, which is an end flared by the insertion of the cable 7, a section holding the blocking devices 43 in the casing 31, and a section 47 for cable hanging at the opposite end. ).

As noted above, each socket 33 is a positioning and retaining section 33C having an inlet section 33A for guiding the cable, a section 33B for retaining the cable, and a retaining shoulder 63 therein. ) And the guide section 33D of the fiber 27.

8 to 13, a blocking ring of the type described above can be used with a connecting tip (commonly referred to as "Ferule") and the connecting tip itself can also be fixed in the connector casing. A second embodiment of the invention that is to be specified will be specified.

Thus, a perspective view of a tip 80 composed of a loop 40 of the type specified above and a tip body 81 (or “ferrule”) adapted to receive such a blocking ring 40 is shown in FIG. 8.

The tip body 81 has a general shape in the form of a tube with a contour which shows three segments 81A, 81B, 81C of layered appearance, in which case the cylindrical appearance decreases in diameter from rear to front.

Preferably, the body 81 is made of plastic material.

The first segment 81A is formed therein with a socket inlet 83A that is the same or substantially similar to the socket inlet 33A of the casing 31 described above.

Similarly, the second segment 81B of the tip has a truncated conical section 83B of the same or substantially similar to the section 33B formed in the casing 31 therein.

Also in a similar manner, the third segment 81D of the tip is formed therein with a cylindrical socket section 83D of the same side as the section 33D formed in the casing 31.

Therefore, the main body 81 has a tubular first portion consisting of the first two segments 81A and 81B for accommodating the ring 40 and the first for accommodating the stripped section 30 of the optical cable 7. It may be specified as having a second portion in the form of a tube consisting of three segments 81D.

Observing the socket inlet 83A in more detail, it can be seen that the nearly axially inclined surfaces 92A and 92B, which are similar to the inclined surfaces 52A and 52B, respectively, are alternately located at the edge of the socket inlet 83. The inclined surfaces 92A have a function of guiding the tabs 43 in the axial direction when the ring 40 is engaged in the body 81 of the tip.

As shown in Figs. 8 and 10, each inclined surface 92B is continuously from the rear to the front,

A section 93 flared rearwardly at the inlet,

An almost cylindrical axial middle section 94,

The truncated section 95, which forms a truncated section 83B and a transition section, is shown.

The passage from section 94 to section 95 has a rear rim that engages with loop 40 when loop 40 is fully engaged within tip body 81, as shown more clearly in FIG. 41 forms a groove or shoulder 97.

In that position, the forwardly inclined serrated 97 stops the ring 40 in the removal direction (backward), while the tabs 43 are for the stopping surface 98 formed at the ends of the inclined surfaces 92A. By being seated on (as seen in particular in FIGS. 9 and 11), the ring 40 is no longer directed forward within the body 81 of the tip.

In such a way, it can be seen that the ring 40 can be secured by elastic engagement inside the tip body 81, especially in the socket section 83B, as shown in FIGS. 9 and 10. .

Indeed, the ring 80 is elastically deformed by bending its rear rim 41 as it passes through the inclined section 94 and the rear rim 41 engages in the groove 97 and the section 95. When it is restored to its normal form by the elastic restoring force.

The tip 80 with the ring 40 can likewise be engaged and fixed on the end section of the optical cable as specified above, which is the same method as specified for the male connector 3 as shown in FIG. .

The tip 80 can be designed as part of a single or "monopath" optical connector and can be coupled directly to the corresponding portion of the connector.

12 and 13, it is finally shown that the tip 80 can be used in a connector of a type similar to the connector 1 shown in FIG. 1, in particular in an optical connector of multiple passages.

On those figures the tip 80 is shown as part of the male connector 103, which has an appearance similar to that of the connector 3 described above. The connector 103 differs from the connector 3 in particular in that the ring 40 is fixed in the socket 133 of the casing 131 by the body 81 of the tip.

As such, the casing 131 holds the tip 80 actuated by an elastic engagement, such as an elastic tab 141 with a hook 143 that interlocks with the back of the first segment 81A of the body, in place. It is equipped with a fixing device for 141.

The segment 81D of the tip body 81 is a tubular part of the connector 3 so that it can be interlocked in the same way as the shaft 20 of the same male connector 5 as shown in FIGS. Note that it has the same front surface as 35).

This situation is shown in FIG. 13, which shows the male connector 103 of FIG. 12 in combination with a female connector (or tip) 5 of the type shown in FIGS.

Although the end section of the optical cable 7 is not shown in Figs. 12 and 13, the tip 80 can be engaged on the end section of the partially peeled optical cable as described above, which causes the tip 80 to It can be seen whether it is before or after being fixed into the casing 131.

Until now, it has been shown that the blocking ring 40 as proposed in the present invention enables the quick wiring of optical connectors by simply inserting the cable end into the socket of the casing with the ring, without pre-fitting action.

It has also been stated that such rings can be used with a great deal of flexibility in a variety of applications, with or without plastic "ferrules".

In addition, the high degree of mechanical fixation of the cables in the sockets, which is ensured by such blocking rings 40, gives an excellent level of reliability to such installed connections.

After all, the blocking ring according to the invention requires only a very low level of manufacturing costs due to the relatively low cost of the base material used and the simplicity of the equipment used.

Claims (17)

At least having an end section of the optical cable 7 and extending along the axis X and having along the axis a rear end 33A, 83A for insertion of the optical cable and a front end 33D, 83D for connection; A casing forming body 31, 81, 131 having one socket 33, 83, 133, A connector element of an optical cable comprising means 40 for blocking the end section of the optical cable in place inside the socket, The blocking means 40 comprises at least one elastic thin plate 50, in particular in the axial (X) direction, the thin plate 50 being defined by a rear section of the thin plate 50 which is inclined forward in a cantilever fashion. The fastening section 47 is firmly connected to the inner wall of the sockets 33, 83, 133 and has one front fastening section 47 having a sharp edge 49 which rotates radially inwardly so that the fastening section 47 is inserted therein. When the end section of the optical cable 7 is inserted into the socket 33, 83, 133 from the dragon end side, it can be radially displaced outwards, and by means of the reverse drawing movement of the cable section 7, A sharp edge (49) through the peripheral shell (29) of the cable section such that the cable section is secured in the body. The method of claim 1, wherein the blocking means is fixed in position in the interior of the body (31, 81, 131), the elastic thin plate 50 is composed of one ring 40 formed in the axial direction, An optical cable connector element, characterized in that the loop (40) has a rear end and a front latching section (47) for insertion of the cable section (7). 3. Optical cable connector element according to claim 2, characterized in that the ring (40) is flared on the rear end side. 4. Optical cable connector element according to claim 3, characterized in that the ring (40) is generally shaped like a truncated cone. 5. The connecting casing (31, 81) according to claim 3 or 4, wherein the hook (40) is provided on the peripheral edge (41) at the rear end side to provide means for securing the fixing means (41) in place. An optical cable connector element. 6. Optical cable connector element according to claim 5, characterized in that the ring (40) is radially elastically deformed and the fastening means (41) are fastening means by elastic coupling. The axial direction according to any one of claims 2 to 6, wherein the loops (40) generally have a rotational shape, form an elastic sheet, and are axially connected alternately at the rear and front ends of each other. Optical cable connector element, characterized in that it is formed of a strip (50). 8. The optical cable connector element according to claim 2, wherein the ring is formed in pieces of sheet metal, in particular by cutting and bending. 9. 9. A tip according to claim 8, characterized in that it comprises a tip which connects the optical cable and forms a casing body 81 which forms a casing, and which is engaged on an end section of the optical cable 7. Optical cable connector element. The first section 81A according to any one of claims 2 to 9, wherein the main body 81 includes at least two tubular sections 81A, 81B, 81D, of which the inner space is larger. 81B accommodates the ring 40 and is provided with complementary fastening means of the ring, and the second section 81D is adapted to receive the connecting end of the optical cable 7 Cable connector element. The end according to any one of claims 4 to 10, wherein the first sections (81A, 81B) have a generally partial conical shape (83B) therein, the ends of which the diameter of the first section is the smallest Optical cable connector element characterized in that it is open into the second section (81D). 9. Optical cable connector element according to any of the preceding claims, characterized in that it consists of one part (3, 103) of the connector which is adapted to engage with a corresponding part (5) of the connector. 13. The socket according to any one of claims 2 to 12, wherein the sockets 33 and 83 comprise at least two tubular portions 33A to 33D and 83A to 83D, of which the internal space is larger. One part 33A, 33B, 83A, 83B receives the ring 40 and has a fixing means for the ring, and the second part 33D, 83D receives the connecting end of the optical cable 7 And an optical cable connector element. 14. The tubular first portions 33A, 33B; 83A, 83B are internally generally in the shape of a partial truncated cone, and the ends of the tubular first portion having a minimum diameter are Optical cable connector element characterized in that it is open toward a second portion (33D, 83D) in the form of a tube. The socket according to any one of claims 12 to 14, wherein the socket has an inlet section 33A for guiding the cable, a section 33B for holding the cable, and a retaining shoulder 63 therein. And a positioning and stopping section (33C) acting in the insertion direction of the cable. 13. A connector element (80) according to any one of claims 9 to 11 further secured in place in said socket (133) such that said hook is secured in said socket (133). And an optical cable connector element. 17. The optical cable connector element according to claim 16, comprising fastening means (141, 143) by elastic engagement of the tip (80) in the socket (133).

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