MX2008004445A - Optical fibre connection devices - Google Patents

Abstract

The present invention provides an optical fibre connection device comprising a part (103) of a screw-threadless multi-part (101, 103) optical fibre cable connector (100), the multi-parts (101, 103) of the connector (100) being inter-connectable, the part (103) comprising a body (102), the body (102) comprising:an optical fibre cable connection end (105) for connection with an optical fibre cable (106);a part connection end (104) for connection with another part (101) of the multi-part optical fibre cable connector (100);and one or more formations (113) adapted to co-operate with a retainer (213, 313) in a mounting (200, 300) for the connector (100), the mounting (200, 300) used to retain the optical fibre cable (106) and the connector (100) when the optical fibre cable (106) is connected to the optical fibre cable connection end (105) of the body (102), the formations (113) adapted to co-operate with the mounting retainer (213, 313) to resist rotational and/or axial movement of the connector (100) when the connector (100) is assembled with an optical fibre cable (106) and the other parts (103, 101) of the connector (100) and mounted in the mounting (200, 300).

Description

FIBER OPTIC CONNECTION DEVICES Field of the Invention This invention relates to new optical fiber connection devices for making and facilitating fiber optic connections, especially placing cable connections from an optical telecommunications network to subscribers, sometimes referred to as "Home fiber" ( FFTH). The devices facilitate the physical connection of fiber optic cables in a fiber optic transmission network. The new fiber optic connection devices according to this invention include without limitation: (I) new known LC connector derivatives or other physical fiber optic connectors known as such, these connectors facilitate the physical connection of an optical fiber to a terminal connection in the fiber optic network; (II) Pulling lids to pull connected fiber optic cables through ducts that carry devices in the fiber optic network to which the cables are to be connected. These fiber optic connected cables are fiber optic cables that are already connected to a fiber optic connector (for example, such as LC connectors), the connector facilitates fiber optic cable connectivity of the fiber optic cable); and (III) pivotable assemblies for advantageous handling of fiber optic cable connectors used in a network of optical fibers.

Fiber optic networks use optical fibers, composed of fiber optic cables, as data transmission channels. Such networks have numerous applications for data transmission, including telecommunications applications. Such data transmission networks do not necessarily comprise only fiber optic cables and associated apparatus, but many also make use of other types of non-optical fiber transmission paths. BACKGROUND OF THE INVENTION Threaded screw connectors and pull covers for fiber optic cables are described in US Patents 6579014 and 6648520 of Corning Cable Systems, but these are relatively expensive and time consuming to install, which is a serious commercial disadvantage. when you have to make a large number of these connections. One or more aspects and embodiments of the present invention provide a lower cost and easier installation connector. Brief Description of the Invention According to a first aspect, the first invention provides an optical fiber connection device comprising a part of a multi-part fiber optic cable connector, the multiple parts of the connector are interconnectable, the part comprises a body, the body comprising: a fiber optic cable connection end to be connected with a fiber optic cable; one part connection end for connection to another part of the multi-part fiber optic connector; and one or more formations adapted to cooperate with a retainer in a mounting for the connector, the mounting used to retain the fiber optic cable and the connector when the fiber optic cable is connected to the fiber optic cable connection end of the body , the formations adapted to cooperate with the mounting retainer to resist axial and / or rotational movement of the connector when the connector is assembled with a fiber optic cable and the other parts of the connector and mounted in the assembly. The device may comprise a multi-part fiber optic connector with a pushable (preferably slidable) front part interconnectable with a rear part, wherein the rear part of the connector is connected (preferably integrally) with a front end of a body with a rear connection end for connection to a fiber optic cable; and the body has one or more retainer formations adapted to cooperate with a retaining means in a mount to be used to retain the connector and the fiber optic cable when connected to the body, the retaining formations of the body in use cooperating with the means Mounting retainer to resist axial and / or rotational movement of the connector when assembled and assembled in the assembly. The connector can be a fiber optic connector of screwed without thread of multiple parts, whose parts are interconnectable releasable without requiring relative rotation of the multi-part connector parts. The one or more formations may comprise one or more pairs, for example two pairs, of substantially flat parallel masses, each pair formed on opposite sides of a generally round body. The formations may comprise a pair of diametrically opposed stops positioned within a circumferential body channel. The device may include pull-in formations engageable by a fiber optic cable pulling cap to pull connected fiber optic cables through ducts leading to an optical fiber apparatus. The connector can be adapted to be retained in said mounting closely side by side and substantially parallel with one or more similar or substantially identical connectors. The assembly may be a fiber optic cable pull cap for pulling optic fiber connected cables through ducts, leading to fiber optic apparatuses, with one or more formations being adapted to be retained within a cap retainer. of pulling fiber optic cable. These assemblies may be in accordance with the second aspect of the invention. In such a case, the assembly is a temporary assembly to pull the connector to a permanently assembled and operational position / configuration. In other modalities, the assembly may be a permanent assembly that provides assembly in an operational configuration. The assembly can be adapted to retain said connector closely side by side and substantially parallel to one or more similar or substantially identical connectors. The formation (s) can be adapted to be retained in an assembly in which at least two multi-part connectors are mounted. These assemblies may be in accordance with the third aspect of the invention. The mounting retainer may comprise opposing jaws placed to embed with the part formations. The part can be designed to be a part in a connector comprising two or more parts. The connector can be an LC connector. the connector parts can be interconnectable using a sliding action and releasable detachable holding means that act to hold the parts together. The fiber optic cable connection end can be designed to be attached to a fiber optic cable. The fiber optic cable connection end may comprise one or more clips arranged to be deflectable to fit with the lining of a fiber optic cable, when inserting a fiber optic cable at the fiber optic cable connection end, for Improve stress relief and prevent torsion of fiber optic cable. The clamp or clamps may comprise pairs of clamps that are arranged diametrically opposite. The fiber optic cable connection end may comprise a slot arranged to receive fiber optic cable reinforcement members. The slot may be L-shaped. The fiber optic cable connection end may comprise a heat shrinkable sleeve to allow a sealed connection of the fiber optic cable by means of heat shrink. The body can be arranged to comprise a thinning arranged to guide an optical fiber contained within the fiber optic cable by the body and out to another part of the multi-part connector. The connector may be part of a multi-part fiber optic cable arranged to, when in use, be slid towards the mounting retainer. The connector can be a part of multi-part fiber optic cable, to be, when in use, adjusted pressure on the mounting retainer. The part can be entirely made of a metal. The fiber optic cable connection end may be made of a crimpable metal, and the body may be made of a non-crimpable plastic. The body can comprise a tube fiber optic arranged to separately accommodate the optical fiber of a fiber optic cable of one or more fiber optic cable sheaths. The body may comprise an opening for the insertion of adhesive into the interior of the body to allow an adhesive bonding of the fiber optic cable with the interior of the body. The present invention also provides a multi-part connector comprising the part according to the first aspect. The multi-part connector may comprise a heat shrink sleeve attached to the fiber optic connection end portion of the part according to the first aspect. According to a second aspect, the present invention provides a fiber optic connection device comprising a pull-up lid for pulling an optical fiber connector through a duct, with the pull-down lid connected to a pull-out connection member to which it can be attached a pull wire, the pull joint member is rotatable relative to the cap about an axis placed substantially in the pulling direction. The pull cap may comprise retainer formations adapted to be coupled to a portion of the connector to hold a connector firmly within the pull cap. The pull cap may comprise two or more bushings releasably assembled around a connector for housing the connector therein. The connector housing can be partial housing or complete housing. The two ferrules can be separate ferrules. The bushings can be joined in an articulated manner. The device may comprise a securing member for releasably securing the ferrules with one another to accommodate the connector. The device may comprise a securing member to releasably secure the ferrules to each other to receive the connector, and wherein the securing member and ferrules are arranged in such a way that the securing member can be removed from the ferrules. The device may comprise a securing member for releasably securing the ferrules to each other for receiving the connector, and wherein the securing member comprises an opening through which the attached extension member extends when the pull-up lid is assembled. . The lower surface of the cap can be formed to match the outer shape of the connector to facilitate firm support of the connector within the caps. One of the ferrules may comprise protruding retaining formations located within the ferrule arranged to coact with the complementary formations on the outside of the connector to be firmly held in place and to prevent relative rotation of the connector with respect to the ferrule when the connector is located. housed inside the cap. The device can be arranged to house an LC connector. The device may be arranged to house a device according to the first aspect of the invention. The connector may be arranged to be clamped or otherwise bonded with a fiber optic cable having a liner and / or a flexible member that resists tension. According to a third aspect, the present invention provides an optical fiber connection device comprising an optical fiber connector assembly, the assembly comprises a support and an optical fiber connector housing, and the housing can be pivotably connected to the support, for pivotal movement between the first and the second position with respect to the support, the first position is an operating position where the housing is placed on or adjacent to the support and the second position is an access position where the housing The fiber optic connector is moved angularly away from the support to allow access to the fiber optic connector housing. The fiber optic connector housing can be a housing for a portion of a fiber optic cable connector. The fiber optic connector housing may be arranged to comprehensively comprise the housing of a portion of a fiber optic cable connector. The fiber optic connector housing can be arranged to removably house a portion of an optical fiber connector. The fiber optic connector housing can be mounted on a pivot arm, one end of the pivot arm is arranged to be pivotably joined to support movement of the housing between the first and second positions. The fiber optic connector can be part of an LC connector. The fiber optic connector housing can be mounted on the pivot arm, with the housing arranged to be movable along the pivot arm. The fiber optic connector housing can be mounted on a pivot arm, with the housing arranged to be movable along the pivot arm in the first mounted position. The fiber optic connector housing can be removable from the support.

The support may comprise one or more mounting retainers arranged to cooperate with one or more corresponding formations in a fiber optic connector to hold the connector to resist rotational and / or axial movement of the connector when the housing is in the first mounted position and the housing is arranged to comprise the connector. The assembly may be arranged to provide a second controlled access position of the housing, wherein the second controlled access position provides a position of maximum movement of the housing away from the first position to control the bending of an optical fiber connected to the end of the housing. accommodation closest to the pivot point. The second controlled access position may be provided by a stop arm which is arranged to extend from a pivot arm comprising the housing. The housing may be arranged to pivot with respect to the support by a pivoting device, wherein the pivoting device consists of a curved holding member arranged to extend out of the operational face of the support and within which an arm is disposed. of pivot comprising the housing pivotably. The housing can be arranged to pivot with respect to the support by a pivoting device, wherein the pivoting device comprises a retaining member curved integrally with the support to extend out of the operational face of the support. The pivot device may comprise a rounded pivot member and a corresponding curved retaining member, wherein the rounded pivot member is located at the pivoting end of a pivot arm comprising the housing, and the curved retaining member is arranged to extend outside the operating face of the support. The housing may be arranged to pivot with respect to the support by a pivoting device, wherein the pivoting device comprises a depression formed within the operating face of the support where the pivot arm can be pivotably located. The second access position can provide an access position that is far from interference by the support. The assembly may comprise two or more fiber optic connector housings, with a plurality of adjacent housings being arranged to be movable between the first and second positions. The assembly may comprise two or more adjacent fiber optic connector housings, with a plurality of the adjacent housings being movably disposed between the first and second positions, wherein the second position provides access to a housing without interference from an adjacent housing . The assembly may comprise two or more fiber optic connector housings, with a plurality of the adjacent housings being arranged to be movable between the first and second positions, wherein the second position provides access to a housing without interference of a fiber cable optics with connectors adjacently connected to the adjacent housing. The assembly may comprise two or more fiber optic connector housings, with a plurality of the adjacent housings being arranged to be moved between the first and second positions, on a common support. The housing may be arranged to press fit into the holder in the first mounting position. The present invention also provides a housing according to a third aspect of the invention. The present invention also provides a support according to the third aspect of the invention. The present invention provides an optical fiber network comprising an optical fiber connection device according to the first, second and third aspects of the invention. One or more aspects and embodiments of the present invention can be related to multi-part threaded non-threaded fiber optic connectors., wherein these connectors are releasably interconnectable without requiring relative rotation of the multi-part connector parts. The invention encompasses one or more of the features, embodiments and / or aspects of the invention previously / subsequently mentioned in isolation and in all possible combinations if specifically mentioned or claimed or not in isolation or in that combination, and includes methods to make fiber optic connections using them. BRIEF DESCRIPTION OF THE FIGURES The embodiments of the various aspects of the invention are illustrated in more detail, by way of example, with reference to the accompanying drawings, in which: Figures 1-1 to I-20 illustrate a connection device for optical fiber according to a first aspect of the present invention.

Figure 1-1 provides a perspective view of a multi-part fiber optic cable connector comprising an optical fiber connection device according to a first aspect of the invention; Figure I-2 shows a partial section through two embodiments of an optical fiber connection device according to a first aspect of the invention; Figures I-3, I-4 and I-5 respectively show perspective views of an embodiment of an optical fiber connection device according to a first aspect of the invention; Figure I-6 shows a cross section of an embodiment of Figure I-5 when operating with fiber optic cable; Figure I-7 shows a cross-section of an embodiment of an optical fiber connection device according to a first aspect of the invention comprising a shrink sleeve sleeve and an internal thinning; Figure 1-8 shows a partial cross-section of an embodiment of an optical fiber connection device according to a first aspect of the invention comprising an internal thinning; Figure 1-9 shows a cross section of another embodiment of an optical fiber connection device according to a first aspect of the invention; Figure 1-10 shows a perspective view of an optical fiber connection device according to a first aspect of the invention; Figure 1-11 shows a perspective view of assembly components of an optical fiber connection device according to another embodiment of the first aspect of the invention; Figure 1-12 shows a perspective view of assembled components of the optical fiber connection device of Figure 1-11; Figure 1-13 illustrates the assembly steps involved in assembling the fiber optic connection device of Figure 1-11; Figure 1-14 illustrates an optical fiber connection device according to a different embodiment of the first aspect of the present invention; Figure 1-15 illustrates another view of the connection device of Figure 1-14; Figure 1-16 illustrates a further view of the fiber optic connection device of Figure 1-14 with inserted fiber optic cable; Figure 1-17 illustrates two additional views of the fiber optic connection device of Figure 1-14; Figure 1-18 illustrates a cross-sectional view of the fiber optic connection device of Figure 1-14; Figure 1.19 is a cross-sectional view of components used to assemble the fiber optic connection device of Figure 1-14; and Figure 1-20 illustrates the steps of the assembly method of the optical fiber connection device of Figure 1-14. Figures 11-1 to II-5 illustrate an optical fiber connection device, comprising a pull-down lid, according to a second aspect of the invention; Figure 11-1 shows in perspective view the component parts of a pull lid and an optical fiber cable with connectors connected to an optical fiber connection device according to the first aspect of the invention; Figure II-2 shows the optical fiber with connectors Figure 11-1 housed in the base component of the pull lid according to the second aspect of the invention; Figure 11-3 shows the base component of the pull lid according to a second aspect of the invention; Figure II-4 shows an optical fiber cable with connectors assembled in a pull-out lid according to a second aspect of the invention; and Figure 11-5 shows the use of a pull cap according to the second aspect of the invention by a duct. Figures 111-1 to III-5 illustrate an optical fiber connection device comprising a pivotable assembly according to a third aspect of the present invention; Figure 111-1 provides a perspective view of an optical fiber connection device according to a third aspect of the present invention on which a fiber optic cable with connectors is mounted. Figure 111-2 provides a perspective view of an optical fiber connection device where the assembly comprises a number of adjacent housings with fiber optic cables with connectors; Figure 111-3 provides a perspective view of an optical fiber cable with connectors connected to a housing in the second access position according to the third aspect of the invention; Figure 111-4 provides a perspective side view of an optical fiber cable with connectors connected to a housing in the first mounting position according to the third aspect of the invention; Figure 111-5 provides a perspective side view of a housing according to the third aspect of the invention. DETAILED DESCRIPTION OF THE INVENTION Various types of optical fiber connection devices 103, 200, 300 according to one or more aspects of the present invention are shown in the accompanying figures. The modalities of the fiber optic connection device 103 must first be considered according to the first aspect of the invention (Figures 1-1 to I-2). Examples of fiber optic connection devices 103, according to the first aspect of the invention are illustrated in Figures 1-1 to I-20. These embodiments relate to a thin termination and a strain relief device, for drop cables with connectors wherein a rear portion 103 of a multi-part LC connector (100, Figure I), has a body 102, which has a section 105 that can be crimped or otherwise connected to the cable 106 by means of any type of mechanical fastening. It can be seen from Figure 1-1 that the multi-part LC connector 100 comprises two parts that can be releasably press-fitted; a front terminal part 101 and a cable connection rear part 103. The terminal front part 101 accommodates a ferrule 191 to which the uncovered optical fiber 178 of the fiber optic cable 106 is attached. The ferrule 191 allows an optical connection between the optical fiber 178 to another optical fiber (not shown) by physical contact of the ends of the splint in a known manner (the contact between two splints that are found is maintained using a spring 190).

Although the embodiment shown in Figure 1-1 provides releasable parts adjusted under pressure, which can be found without relative rotation of the parts 101 and 103, in other configurations the front and rear portions 101, 103 can be adjusted by screwing, crimping, or pasted, or a combination or variation of such methods. The first aspect of the invention provides modifications to this rear part 103, which is considered a fiber optic connection device. Thus, the above description will concentrate in detail on this rear cable connection part 103 and not on the details of the terminal front part 101. As can be seen in Figure 1-1, the rear cable connection part 103 comprises a main body 102. This body comprises a front terminal end 104 which can be releasably pressurized in a terminal part 101. The rear cable connection part 103 also comprises a fiber optic cable connection end 105 adapted to to receive an optical fiber cable 106. Between the cable connection end 105 and the terminal connection end 104, the body 102 is substantially cylindrical. The rear wire connection part 103 may be a part entirely of metal 103a or a combination of metal 103a and plastic portions 103b (Figure 1.2). In the case of a combination of metal and plastic (or non-metal) portions, the plastic portion can be molded into a metal tube, with the metal tube extending out of the plastic portion and forming a region 105 that can be crimped ( Figure I-2). The cable connection end 105 of the body 102 incorporates the cable tension relief feature comprising a crimped portion that is used to join the cable 106 to the body 102 (Figure I-3). The voltage relieving connections can also or alternatively be made at the connector-connector interface (in this case between parts 101 and 103), for example as described in WO-A-2005/073767, or at the cable interface. connector, or at any intermediate interface. The crimp can be integrated into the body 102 as shown, or be a crimped eye (105 ', Figure I-11) that can be used to crimp the tensile strength members of a fiber optic cable to the body 102. In One embodiment, an L-shaped groove (107, Figure I-4) is provided for receiving and folding back the force members 108 of the cable 106 before the body 102 is crimped with the cable 106. In crimping arrangements Preferred, a clamp (109 Figures I-5 and I-6) of the crimping eye (crimp ring) 105 can be drilled into the cable jacket to improve strain relief and prevent twisting of the cable in the connector body. Optionally, a heat reduction sleeve (110, Fig. I-7 and Fig. 1-11, Fig. 1-12) can be used to seal the cable 106 to the body 102 of the connector (optical fiber connection device), and the Heat reduction sleeve110 can improve the stress relief and the lateral load capacity of the cable.

In another embodiment, as shown by arrows 111 in Figures I-8 and I-9, the interior design of the body (102) may be such that an optical fiber (112) is conveniently guided toward the body splint connector 102. The illustrated example of the connector body 102 includes formations / features for securing and orienting in the form of flat masses (113) on opposite sides of the generally round body 102 to align the body 102 with complementary portions of a connecting device of fiber optic in use. This design allows standard connector installation procedures to be used without installation tools, thus reducing complexity and facilitating termination and provision with pull cable connectors, especially (but not exclusively) when using LC connectors. The dough 113 is finished with ribs 115 which inhibit the movement of the cable connection part 103 in the pulling direction, when the cable connection part is held in the mounting retainers 213, 313 (jaws), such as those found in optical fiber connection devices 200, 300 according to the second and third aspects of the invention. The ribs 115 may be in the form of discs (Figure 1-11 and Figure I-12) formed to extend radially outwardly from the body 102. The assembly of the fiber optic connection device 103 is illustrated in Figure 1-13. . The heat reduction sleeve 110 and the O ring crimping 105 'slide over the fiber optic cable 106. The cable 106 is then discovered to expose the optical fiber 178 and Kevlar 179. Epoxy adhesive is applied to the ferrule 191 using a syringe through the plastic tube 192 to secure the fiber 178 to the ferrule 191. The exposed Kevlar 179 covers they are then exposed through the exterior of the device 103 and the inserted crimping ring 105 'are slipped on the covers 179. The crimping ring 105 'is then crimped, after which the heat shrink wick 110 is installed in a conventional manner. Another embodiment of the optical fiber connection device 103 (in this case the rear cable connection part) is shown in Figures 1-14 to ¡-20. In these embodiments, the securing and orienting formations 113 comprise stops positioned in two diametrically opposed positions along the circumference of the connector body 102 (as a formation 113 shown in Figures 1-14 and I-20). These are formed in a channel 170 formed along the circumference of the body 102. These are arranged to prevent rotation of the device 103 when held in a retainer formed in a complementary manner in an assembly (not shown). The rear cable part 103 comprises an opening 173 by which glue can be placed inside the rear part 103. This opening 173 is located at the end through which the fiber optic cable 106 is inserted (Figure i- 16).

The rear cable part 103 comprises a tube 180 by which the optical fiber 178 of the fiber optic cable 106 can be inserted to protrude from the rear 103. The tube 180 is arranged to keep the optical fiber 178 inserted there free of charge. any glue inserted through the opening 173. The tube 180 is sized to accommodate the optical fiber 178 of the fiber optic cable 106, but not the outer shells (liner / Kevlar fibers 179) of the cable 106. Vents are provided 175 at the rear 103 to allow the glue to flow easily into the interior of the rear 103. The interior of the rear 103 comprises a mating face 181 arranged to engage the lining of the fiber optic cable 106 (Fig. 1). -17, 1-18) inserted in the rear 103. In use, the Kevlar fibers 179 of the fiber optic cable 106 are separated from the optical fiber 178. The optical fiber 178 is then inserted into the tube 1 80 of the part 103 to keep the optical fiber separated from the fibers 179. The fibers 179 are thus located around the tube 180. Then glue is poured through the opening 173 to stick the fibers 179 to the back 103. When inserting the optical fiber 178 in the tube 180 is protected from contamination by the glue. The assembly of the modality of Figure i-14 is illustrated in Figure 1-19 and I-20. The splint 191 is attached to the optical fiber 178 using the conventional manner previously described in relation to Figure 1-12. However, instead of crimping, hot melt adhesive is applied through the aperture '173 and allowed to cool. The application of adhesive through the opening 173 secures the Kevlar sleeves 179 to the outside of the tube 180 and into the interior of the connector body 102. The fiber 178 is protected from exposure to the hot melt adhesive by the tube 180. An optical fiber connection device 200 will now be considered in accordance with the second aspect of the invention. In this case, the fiber optic connection device 200 is a pull cap for pulling fiber optic cables with connectors 106 through the ducts 250 that carry an apparatus in the fiber optic network to which the cables will be connected. . These fiber optic cables with connectors 106, are fiber optic cables that are already connected to a fiber optic connector (for example, such as LC connectors), with the connector facilitating the connectivity of the fiber optic cable 106 in the network of optical fiber. The aspects of the pull cap of the second aspect of the invention are illustrated in Figures 11-1 to II-5. These relate to a thin cover housing 200 (201a, 201b, 201c) with a peye 102 for use with pcables with connectors. the cap 200 consists of a base cap 201a with a sealed cover shell 201b and a closure ring holder 201c. The base bushing 201a of the housing has protruding fixing members (213, FIG. 11-3) that couple shoulders / masses in the body 102 (FIG. II-2) of the connecting device 103 according to the first aspect of the invention. Thus, the cable with connectors 106 can be pd through a duct 250 without tensioning the optical fiber 106 or disturbing the connecting parts 101, 103 since the peye 202 and the retaining members 213 are in the same bushing / carrier. The protruding retaining members 213 retain the cable with connectors 106 in the base bushing 210a.

Although the base cap 201a and the cover cap 201b are shown in separate portions in Figures 11-1 to II-3, these can be held by a hinge (not shown) that allows the inside of the caps to be accessible to allow the insertion of a fiber optic cable with connectors. For example, the bushes 201a, 201b can be joined by a hinge extending parallel to the longitudinal axis of the bushes 201a, 201b. In such a case, they would not be considered as separate parties. The base cap 201a also comprises a pull eye 202. The pull eye 202 is fixed to one end of the base cap 201a, but has another end that is arranged to be rotatable, wherein the axis of rotation is the longitudinal axis of the pull cap 200 / fiber optic cable 106 (FIGS. II-2, II-3) in this case rotation about the pulling direction axis. Thus, during the pulling of the pull eyelet by a duct 250 (Fig. II-5), the rotation of the pull eyelet does not necessarily result in the rotation of the base cap 201a (and therefore the rotation of the pull cap 200) . In this way, rotation of the fiber optic cable 200 is inhibited during the use of the pull cap 200.

Although the base cap 201a is shown to contain both a rotatable eye 202 and the retention members 213, the pull eye 202 and retention members 213 can be located in different sockets 201a. 201b. Further, although a lock fastener ring 202 is shown, the two ferrules may be joined to accommodate the fiber optic cable with connectors 106 by any suitable mechanism. This may include a releasable tongue (not shown) that secures both sleeves 201a and 201b. Retaining members 213 have engaging surfaces that extend in the pulling direction. Thus, when the mating surfaces are in contact with the complementary parts 113 on the outside of the connector 100, they hold the connector in place along a large surface in the pulling direction. This facilitates the holding of the connector 100 while the pulling cap 200 is pulled through a duct 250. The bushings 201a, 201b may comprise a cavity 220 positioned in the respective walls of the ferrules to define an opening that simply fits along the fiber optic cable 106 inserted there when the cover 200 is assembled with a fiber optic cable with connectors 106. The friction provided by this simple adjustment assists in inhibiting the relative movement of the fiber optic cable with connectors 106 in the 200 lid in the direction of pulling. When the cap 200 is applied to the end of the cable 101, 103, as shown in Figure 11-4, the termination is protected from moisture, dust and mechanical damage, especially if a gel seal is provided between the cap portions. 201a and 201b and between the cap entry ports and the cable, the gel compensates for variations in the diameter of the cable, since excess gel can be pushed into the cavity of the cap 200. The cap 200 is reusable and can be supplied independently of the crimp termination assembly / connector 100, and can be completely removed after guiding the cable through a duct 250 during the installation of the pull cable. These functions are provided by two ferrules 201a, 201b found to be releasably joined by a removable closing ring fastener 201c. The fastener 201c has two opposable arms 205, 206, each of which is arranged to releasably engage cooperative formations 207 on the corresponding outer face of the ferrules. The fastener 201c also comprises an opening by which the pulling eye 202 of the base cap 201a can be extended when the cap 200 is assembled. The fastener 201c can be releasably removed from the caps using a common tool, such as a screwdriver. The use of the screwdriver, in the correctly positioned opening 215, would allow one or more opposite arms 205, 206 to be removed from the coupling with its corresponding bushing 201a, 201b.

The cover is dimensioned in such a way that the cables with (terminated) connectors 106 can be guided by a duct 250 of less than 30mm in diameter even though this duct is curved around a radius smaller than 150mm (Figure II-5). The cover 200 thus conforms to the dimensions of a cable termination using standard available FO connectors and standard ducts 250. The advantageous features of the illustrated cover 200 preferably include its integral securing mechanism illustrated with front access; its ability to be installed without using special tools; and the fact that after removing the protective pull cap 200, the characteristics of the connector 100 that would be specifically required for pulling do not occupy any additional volume. An optical fiber connection device according to the third aspect of the invention is now considered in which the fiber optic connection device is a pivotable assembly. Such aspects are illustrated in Figures 111-1 to III-5. The assembly 300 consists of a support base plate 301 and the pivotal part of the arm 302 for retaining a connector 100 attached to the pull cable 106. The pivoting part 302 carries a simple adapter 304 of known type which houses the front part of a connector LC optical (101 in Figure 1-1), whose tab 108 can be seen protruding from the adapter 304 in Figure III-5. Pivoting the part 302 upwards away from the support table or base plate 301, for example by pulling the cable 106 upwards, improves the access for connector and disconnecting the cable with connectors to the connector part 103 housed in the adapter 304, since the latter is lifted from an array of terminations as shown in Figures III-2 and III-3. As the part 302 pivots downward, the assembly is preferably secured on the support table 301 by means of a snap fastener or other retaining means 308. As best seen in Figure III-2, assembly 300 includes location members / overhang members 313 that engage the flat masses 113 in a fiber optic cable with connectors. This provides resistance to both the torsional and longitudinal movement of the body relative to other connector parts within assembly 300. The pivoting portion 302 of mounting 300 preferably includes bending control features (in this case stop arm 310) to control the bent from the back of the optical fiber that is led from the connector of the backplane, as indicated in Figure III-3. The preferred pivoting movement could be replaced by a parallel movement. The adapter 304 is preferably mounted in such a way that it can be moved (freely) in the axial pulling direction, preferably as indicated in Figure III-5, to prevent stresses on the adapter / connector interface. Thus, the adapter 304 can move along the pivoting part 302. The pivot arm comprises a rounded end 349 that is held within a depression 305 that is formed (in this case the molding process for the base plate 301) within the base plate 301. A curved retention member 351 extends out of the base plate 301 over the depression 350, which is integrally molded with the base plate 301. The retaining member 351 is formed to releasably hold the rounded end 349 of pivot arm 302. The various aspects of this invention are particularly, but not exclusively suitable to allow or assist in the installation of pull cables with connectors to form fiber optic connections to a fiber optic telecommunications system, preferably inside a box or cabinet that houses a number of such connections.

Claims (64)

1. CLAIMS 1. A fiber optic connection device comprising a part (103) of a fiber optic cable connector (100) of multiple parts (101, 103), multiple parts (101, 103) of the connector (100) are interconnectable, wherein the part (103) comprises a body (102) comprising: an optical fiber cable connection end (105) for connection to an optical fiber cable (106); a part connection end (104) for connection to another part (101) of the multi-part fiber optic cable connector (100); and one or more formations (113) adapted to cooperate with a retainer (213, 313) in an assembly (200, 300) for the connector (100), and the assembly (200, 300) is used to retain the fiber cable optical (106) and the connector (100) when the fiber optic cable (106) is connected to the fiber optic cable connection end (105) of the body (102), the formations (113) adapted to cooperate with the mounting retainer (213, 313) for resisting rotational and / or axial movement of the connector (100) when the connector (100) is assembled with the fiber optic cable (106) and the other parts (101, 103) of the connector ( 100) and assembled (200,300). An optical fiber connection device according to claim 1, comprising a multi-part fiber optic cable connector (100) with a pushable (preferably slidable) front part (101) interconnectable with a rear part (103) ), wherein the rear part (103) of the connector is attached to (preferably integrally) the front end of a body (102) having a rear connection end (105) for connection to an optical fiber cable (106); and the body (102) has one or more retention formations (113) adapted to cooperate with a retaining means (213, 313) in an assembly (200, 300) used to retain the connector and the fiber optic cable (106 ) when connected to the body (102), the retaining formations (113) of the body in use cooperating with the mounting retention means (213, 313) to resist rotational and / or axial movement of the connector (100) when they are assembled and assembled in the assembly (200, 300). A device according to claim 1 or 2, wherein the connector is a multi-part threaded non-threaded optical fiber connector, the parts of which are releasably interconnectable without requiring relative rotation of the multi-part connector parts. 4. A device according to claim 1 or 2, wherein the one or more formations comprise one or more pairs (preferably two pairs) of substantially flat parallel masses, each pair formed on opposite sides with a generally round body. A device according to claim 1 or 2, including formations engageable with a fiber optic cable pulling cap to pull fiber optic cables with connectors through ducts leading to an optical fiber apparatus. A device according to claim 1 or 2, wherein the connector is adapted to be retained in said mounting closely side by side and substantially parallel with one or more similar or substantially identical connectors. A device according to claim 1 or 2, wherein the assembly is adapted to retain said connector closely side by side and substantially parallel with one or more substantially identical connectors. 8. A device according to claim 1 or 2, wherein the connector is an LC connector. A device according to claim 1 or 2, wherein the connector parts are interconnectable using a sliding action and incorporate releasable stop means which engage to support the parts. A device according to claim 1, wherein the fiber optic cable connection end is arranged to be crimped to an optical fiber cable. 11. A device according to claim 1, wherein the fiber optic cable connection end comprises one or more clamps arranged to be deflectable to engage the lining of a fiber optic cable, by inserting a fiber optic cable at the fiber optic cable connection end , to improve the tension relief and prevent the torsion of the fiber optic cable. 12. A device according to claim 11, wherein the clamp (s) comprise pairs of clamps arranged to be diametrically opposed. A device according to claim 1, wherein the fiber optic cable connection comprises a slot arranged to receive reinforcing members of the fiber optic cable. A device according to claim 13, wherein the slot is L-shaped. 15. A device according to claim 1, wherein the body is arranged to comprise a thinning arranged to guide the optical fiber contained within the Fiber optic cable through the body and towards another part of the multi-part connector. 16. A device according to claim 1, wherein the connecting end of the fiber optic cable comprises a heat shrink sleeve to allow a sealed connection of the fiber optic cable by means of heat shrink. 17. A device according to claim 1, wherein the part is for a multi-part fiber optic cable connector, which is arranged to be slid in the mounting retainer during use. 18. A device according to claim 1, wherein the part is for a multi-part fiber optic cable connector, which is arranged to be press fit into the mounting retainer during use. 19. A device according to claim 1, wherein the fiber optic cable connection end is made of a crimpable metal and the body is made of plastic. 20. A fiber optic cable connector comprising the device according to claim 1. 21. An optical fiber connection device comprising a pull-up cover (200) for pulling an optical fiber connector (100) for a duct (250), the pull cap having been connected to a pull connection member (202) to which a pull wire can be attached, with the connecting member (202) being rotatable relative to the cover (200) around an axis that is substantially in the pull direction. 22. A device according to claim 21, wherein the pull-down cap comprises retaining formations adapted to be coupled with a part of the connector for firmly holding the connector within the pull-down lid. A device according to claim 21, wherein the cap comprises two or more sockets releasably assembled around a connector for housing the connector.- 24. A device according to claim 23, wherein the two sockets They are separate caps. 25. A device according to claim 23, wherein the bushes are hingedly joined. 26. A device according to claim 23, wherein the device comprises a securing member for releasably securing the ferrules with one another to receive the connector. 27. A device according to claim 23, wherein the device comprises a securing member for releasably securing the ferrules to each other for receiving the connector, and wherein the securing member and ferrules are disposed of. such that the securing member can be removed from the bushings. A device according to claim 23, wherein the device comprises a securing member for releasably securing the ferrules to each other for receiving the connector, and wherein the securing member comprises an opening by which extends the pull member when the pull cap is assembled. 29. A device according to claim 21, wherein the inner surface of the cap is formed to coincide with the outer shape of the connector to facilitate a clamping of the connector within the caps. 30. A device according to claim 23, wherein one of the ferrules comprises protruding retention formations located within the ferrule arranged to mate with the complementary formations on the outside of the connector to hold the connector firmly in place and to prevent relative rotation of the connector with respect to the bushing when the connector is clamped inside the bushing. 31. A device according to claim 21, wherein the device is arranged to house an LC connector. 32. A device according to claim 21, wherein the device is arranged to house a device according to claim 1. 33. A device according to claim 21, wherein the connector is arranged to be crimped or joined together. another way with the fiber optic cable having a liner and / or a flexible tension-resistant member. 34. A device according to claim 21, wherein the connector is part of a multi-part threaded non-threaded optical fiber connector, the multi-part connector is releasably connectable without requiring relative rotation of the parts of the connector. multi-part connector. 35. An optical fiber connection device comprising an optical fiber connector assembly (300), the assembly (300) comprises a support (301) and an optical fiber connector housing (304), the housing (304) it can be pivotably connected with the support (301) for pivotal movement between the first and second positions with respect to the support, wherein the first position is an operating position wherein the housing (304) is placed on or closely adjacent to the support (301) and the second position is an access position wherein the housing (304) of the fiber optic connector is angularly moved away from the support (301) to allow access to the housing (304) of the fiber optic connector. 36. A device according to claim 35 'wherein the fiber optic connector housing is a housing for a part of a multi-part fiber optic cable connector. 37. A device according to claim 35, wherein the fiber optic connector housing is a housing for a part of a multi-part threaded non-threaded optical fiber connector, wherein the multi-part connector is interconnectable. releasably without requiring a relative rotation of the multi-part connector parts. 38. A device according to claim 35, wherein the fiber optic connector housing is arranged to comprehensively comprise the housing of a portion of a multi-part fiber optic cable connector. 39. A device according to claim 35, wherein the fiber optic connector housing is arranged to removably house a part of a multi-part fiber optic connector. 40. A device according to claim 35, wherein the fiber optic connector housing is mounted on a pivot arm, with one end of the pivotal arm being arranged to be pivotally unible with the support to move the housing between the first and second positions. 41. A device according to claim 35, wherein the connector. Fiber optic is for a part of an LC connector. 42. A device according to claim 35, wherein the fiber optic connector housing is mounted on a pivot arm, wherein the housing is arranged to be moved along the pivot arm. 43. A device according to claim 5, wherein the fiber optic connector housing is mounted on a pivot arm, wherein the housing is arranged to be movable along the pivot arm in the first mounted position. 44. A device according to claim 35, wherein the fiber optic connector housing is removable from the support. 45. A device according to claim 35, wherein the support comprises one or more mounting retainers arranged to cooperate with one or more corresponding formations in a fiber optic connector to house the connector to resist rotational or axial movement of the connector. when the housing is in the first mounting position and the housing is arranged to comprise the connector. 46. A device according to claim 35, wherein the assembly is provided to provide a second access position of the housing, wherein the second controlled access position provides a position of maximum movement of the housing away from the first position to control the bending of the optical fiber connected to the end of the housing closest to the pivot point. 47. A device according to claim 46, wherein the second controlled access position is provided with a stop arm that is arranged to extend from the pivot point, and located on a pivot arm comprising the housing. 48. A device according to claim 35, wherein the housing is arranged to pivot with respect to the support by a pivot arrangement and the pivot arrangement comprises a curved member located on the support within which a pivot arm is disposed. pivotably, comprising the housing. 49. A device according to claim 35, wherein the housing is provided to pivot with respect to the support by a pivot arrangement, the pivot arrangement comprising a curved holding member integrally formed with the support for extending out of the face. of support operation. 50. A device according to claim 35, wherein the housing is provided to pivot with respect to the support by a pivot arrangement, the pivot arrangement comprises a rounded pivot member and a corresponding curved retaining member, the member of rounded pivot located at the pivoting end of the pivot arm comprising the housing, and the curved holding member is arranged to extend out of the operational face of the support. 51. A device according to claim 35, wherein the housing is arranged to pivot with respect to the support by a pivot arrangement, the pivot arrangement comprises a depression formed within the operating face of the support wherein a pivotable pivot arm. 52. A device according to claim 35, wherein the second access position provides an access position free of interference by the support. 53. A device according to claim 35, wherein the assembly comprises two or more adjacent fiber optic connector housings, with a plurality of the adjacent housing being arranged to be movable between the first and second positions. 54. A device according to claim 35, wherein the assembly comprises two or more adjacent fiber optic housings, with a plurality of the adjacent housings being arranged to be movable between the first and second positions, the second position provides access to an accommodation without interference from an adjacent accommodation. 55. A device according to claim 35, wherein the assembly comprises two or more adjacent fiber optic connector housings, with a plurality of the adjacent housings being arranged to be movable between the first and second positions, the second position providing access to an interference-free housing of a fiber optic cable with adjacent connectors connected to the adjacent housing. 56. A device according to claim 35, wherein the assembly comprises two or more adjacent fiber optic connector housings, with a plurality of the adjacent housings being arranged to be movable between the first and second positions, in a common support . 57. A device according to claim 35, wherein the housing is arranged to press fit into the holder in the first mounting position. 58. A housing according to claim 35. 59. A support according to claim 35. 60. An optical fiber network comprising an optical fiber connection device according to claim 1, 21 or 35. 61. A method for making an optical fiber connection using a fiber optic connection device according to claim 1, 21 or 35. 62. A device according to claim 1, wherein the formations comprise a pair of diametrically opposed stop members positioned within a circumferential body channel. 63. A device according to claim 1, wherein the body comprises a fiber optic tube arranged to separately house the optical fiber of an optical fiber cable of one or more sleeves of the optical fiber cable. 64. A device according to claim 1, wherein the body comprises an opening for inserting glue into the body to allow an adhesive bonding of the fiber optic cable with the interior of the body.