Source: https://patents.justia.com/patent/8917967
Timestamp: 2020-02-19 17:24:20
Document Index: 377381182

Matched Legal Cases: ['art 4', 'art 4', 'art 4', 'art 4', 'art 12', 'art 12', 'art 12', 'art 12', 'art 12', 'art 12', 'art 4', 'art 12', 'art 4', 'art 12', 'art 12', 'art 11', 'art 11', 'art 11', 'art 11', 'art 13', 'art 12', 'art 12', 'art 12', 'art 11', 'art 12', 'art 11', 'art 11', 'art 11', 'art 12', 'art 11', 'art 12', 'art 11', 'art 12', 'art 11', 'art 11', 'art 11', 'art 11', 'art 11', 'art 11', 'art 11', 'art 11', 'art 11', 'art 11', 'art 11', 'art 12', 'art 4', 'art 11', 'art 11', 'art 11', 'art 11', 'art 4', 'art 56', 'art 12', 'art 4', 'art 56', 'arts 12', 'arts 4', 'art 56', 'arts 12', 'arts 4', 'arts 12', 'arts 4', 'art 56', 'arts 12', 'arts 4', 'art 102', 'art 101', 'art 102', 'art 101', 'art 12', 'art 11', 'art 102', 'art 56', 'art 56', 'art 102', 'art 56', 'art 102', 'art 102', 'art 102', 'art 102', 'art 102', 'art 102', 'art 101', 'art 102', 'art 101', 'art 102', 'art 101', 'art 102', 'art 101', 'art 102', 'art 102', 'art 101', 'art 12', 'art\n5', 'art\n12', 'art\n13', 'art\n14', 'art\n29', 'art\n58', 'art.\n2', 'art.\n3', 'art.\n6', 'art.\n7', 'art.\n8', 'art.\n17', 'art.\n18', 'art.\n19', 'art.\n5598500']

US Patent for Cable sealing device, cable termination and attaching device Patent (Patent # 8,917,967 issued December 23, 2014) - Justia Patents Search
Justia Patents Plug/termination DeviceUS Patent for Cable sealing device, cable termination and attaching device Patent (Patent # 8,917,967)
Jan 18, 2011 - Tyco Electronics Raychem BVBA
A cable sealing device including an attaching part securable to the cable; a fixation part adapted to be mountable on the attaching part; and a sealing part. The attaching part includes outer locking faces. The fixation part has inner abutment faces adapted to co-operate with the outer locking faces to axially and rotationally lock the fixation part relative to the attaching part. The sealing part includes an inner seal and an outer seal. The sealing part also includes a second securing arrangement that is configured to engage a first securing arrangement of the fixation part to axially and rotationally lock the sealing part to the fixation part.
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This application is a National Stage Application of PCT/EP2011/050606, filed 18 Jan. 2011, which claims benefit of Serial No. 10000930.7, filed 29 Jan. 2010 in Europe and which applications are incorporated herein by reference. To the extent appropriate, a claim of priority is made to each of the above disclosed applications.
A cable sealing device is e.g. known from WO 2007/014385 A2, which finds particular application in the field of telecommunication technology to which the present invention preferably relates.
Moreover, in case of securing the cable sealing device to a commonly known cable having an attaching part connectable to a connector and providing strain relief as e.g. described in WO 2007/039585 A1, the cable sealing device can only be mounted on the cable adjacent to the attaching part, wherein, in a mounted state of the cable sealing device to the cable sealing and retaining device, at least the attaching part projecting from a longitudinal end side of the cable jacket extends into an accommodating space provided inside the cable sealing and retaining device, thereby reducing the accommodating space required for performing operations on said cable or for accommodating one or more connectors connected to the attaching part of one or more connectorizable cables, respectively. Further, an assembling of the cable sealing device on the cable is complicated due to the plurality of parts, their small shape and the respective effort required for mounting the grip means and the remaining parts on the cable.
The above object is solved by a cable sealing device. The inventive cable sealing device is based on a principle that, for securing the cable sealing device to a cable having a commonly known attaching part, formations, particularly faces already provided with the attaching part are employed as a mounting area for the cable sealing device. Specifically, the faces are used for forming a positive locking between the attaching part and the cable sealing device. Furthermore, the cable on which the inventive cable sealing device is mountable, can be formed of a coax cable, a copper cable, an optical fibre cable and the like, in general a cable used preferably in telecommunications technology and providing an attaching part with formations usable as positive locking faces.
Moreover, the cable sealing device comprises a fixation part adapted to be mountable on the attaching part, which is securable to the cable and which provides accessible outer positive locking faces extending in circumferential and longitudinal direction of the cable, wherein the fixation part provides inner circumferential and axial abutment faces adapted to co-operate with the outer positive locking faces so as to provide therebetween a positive locking in circumferential and longitudinal direction. In general, an axial direction relates to a direction running in parallel with the extension direction of the passageway formed by the sealing part, wherein said direction runs also in parallel to the longitudinal direction of the cable guidable by the sealing part. The circumferential direction relates to a direction running around the longitudinal direction. The positive locking face and the abutment surface refers to a surface shape capable of compensating pressing forces caused for instance by abutment under a pressing force of two correspondingly shaped surfaces. The positive locking face and the abutment surface, respectively, may be preferably formed of a flat surface, a concave surface or a convex surface, wherein each of said surface shapes may co-operate with similar or different surface shapes as long as a positive locking can be obtained therebetween in at least longitudinal or circumferential direction. For instance, the positive locking face and the associated abutment surface may be formed of a flat surface. Alternatively, the positive locking face may be formed of a convex surface, wherein the corresponding abutment surface may have a concave shape. Further alternatively, the positive locking face may be formed of a concave surface, wherein the corresponding abutment surface may have a convex shape. Further corresponding surface shapes are feasible as long as said corresponding surfaces provide a positive locking in at least one direction. Accordingly, the positive locking between the fixation part and the attaching part in longitudinal direction is achieved by at least two surfaces adapted to abut against each other in longitudinal direction, one surface is provided with the fixation part and the other surface is formed with the attaching part. Moreover, the positive locking acting therebetween in circumferential direction is obtained by at least two additional surfaces adapted to abut against each other in circumferential direction, wherein the one additional surface is provided with the fixation part and the other additional surface is formed with the attaching part.
For exemplary explaining a structure of an attaching part providing positive locking faces to which the fixation part is preferably mountable, a shape of a commonly known attaching part as described in WO 2007/039585 A1 is used. Particularly, the attaching part has a middle section of a polygonal cross-sectional shape providing a plurality of flat surfaces at an outer circumference of the attaching part, wherein said flat surfaces are sandwiched in longitudinal direction of the attaching part by flanges protruding said flat surfaces transverse to said longitudinal direction, i.e in radial direction. In general, an attaching part commonly known in the technical field of telecommunications technology has in a majority of cases a section providing a circumferential groove or a plurality of grooves arranged successively with a distance therebetween in circumferential direction of the attaching part. The bottom of the groove section may then form the positive locking face for providing a positive locking in circumferential direction of the attaching part by means of abutment there against, wherein the wall sections defining the groove in longitudinal direction thereof may form the positive locking faces providing a positive locking in longitudinal direction by abutting there against. As described above, the surfaces may preferably have another shape than a flat shape. Alternatively or in addition thereto, the attaching part may be preferably provided with at least one pin-like protrusion projecting from an outer circumference or with at least one pin-like receiving hole formed in the outer circumference, wherein the fixation part may be provided with an associated pin-like receiving hole or a pin-like protrusion, accordingly.
In one preferred embodiment, the fixation part provides additional positive locking means on an outer circumference and/or on a longitudinal end section freely accessible from a radial outer side.
Particularly, the fixation part may be preferably arranged directly adjacent to the sealing part in the assembled state thereof and, further preferable, abuts against the sealing part in longitudinal direction, wherein the fixation part provides at least one freely accessible longitudinal end section on a side on which the sealing part is not arranged. Alternatively or in addition thereto, the fixation part may preferably provide a freely accessible longitudinal end section on the side at which the sealing part is arranged. Specifically, a gap portion may be preferably provided between the fixation part and the sealing part in circumferential direction thereof, wherein said gap portion may be formed of a ring segment partially extending in circumferential direction or may be formed continuously in circumferential direction. Alternatively or in addition thereto, the fixation part may provide a portion with an outer diameter larger than an outer diameter of an adjacent portion of the sealing part. In other words, the fixation part may provide a portion projecting in radial direction from an outer circumference of said adjacent portion of the sealing part when viewed in longitudinal direction thereof. For those cases, the longitudinal end sections are freely accessible from the radial outer side of the fixation part and may be used for co-operating with means of a mounting to which the cable sealing device is mountable to secure the fixation part to the mounting at least in longitudinal direction of the cable.
Preferably, the sealing part provides a flange portion, preferably a circumferential flange portion between the outer seal and the rear end side of the sealing part, wherein said flange portion forms the radial outer part of the sealing part and provides a longitudinal abutment surface for abutting against a mounting in a secured state of the cable sealing device. In other words, the cable sealing device can be adapted to be secured to the mounting by means of the thread engagement or the bayonet fitting so as to tightly abutting the flange portion against the mounting. Further preferably, an additional seal can be provided between the outer seal and the flange portion for sealing the abutment of the flange portion against the mounting and for further improving the sealing performance of the cable sealing device.
Hence, the cable sealing device may be secured to the cable and to the mounting only by means of the fixation part. Thereby, a securing of the cable sealing device guiding the cable against the mounting may be conductable in a dissembled state or assembled state of the cable sealing device, wherein the dissembled state refers to a state in which the sealing part is released from the fixation part, and wherein the assembled state is a state in which the fixation part and the sealing part are secured to each other. Thus, a degree of freedom concerning possible handlings of the cable sealing device, particularly of each part thereof is increased. For instance, the sealing part may be further handleable while the fixation part is already secured against the mounting.
The additional positive locking means at the longitudinal free end section may preferably co-operate with a further part insertable into the groove section so as to provide a positive locking in longitudinal direction of the fixation part. According thereto, tension relief in longitudinal direction of the cable may be obtained by connection of the associated part thereto, specifically when the additional positive locking means on the outer circumference are not provided or not used.
More preferably, the inner seal has an outer diameter larger than an inner diameter of the cavity. Accordingly, in the secured state of the cable sealing device on the cable, the inner seal may perform a pressure in radial direction onto the cable and against the sealing part, whereby the sealing material of the inner seal may be urged to flow in longitudinal direction. Said flow is prevented by the abutment surfaces provided in longitudinal direction by the cavity and the ring part, wherein the pressure of the inner seal in radial direction can be maintained. Hence, the sealing part may be securable on the cable additionally by the inner seal. Further, a sealing performance of the cable sealing device, i.e. the sealing between the inner seal and the cable and also the sealing between the inner seal and the sealing part can be further increased, since tolerances between the inner seal and the cable may be compensated. By simply varying the shape of the inner seal, that is, by providing a respective diameter for the inner seal, the sealing can be influenced appropriately. In comparison, the known cable sealing device provides a sealing performance depending on a compressive force acting in longitudinal direction on the inner seal, wherein said compressive force is obtained by screwing the bolt portion into the sealing part to press against the inner seal. However, said compressive may decrease when the bolt portion turns back in loosening direction due to vibration or other influences, wherein an insufficient sealing performance may be achieved.
FIGS. 1A-1D show a perspective side view of a cable sealing device according to one embodiment in a disassembled and an assembled state;
FIGS. 2A and 2B show a perspective side view of a cable sealing and retaining device according to one embodiment in a disassembled and assembled state with the cable sealing device as shown in FIG. 1D;
FIG. 3 shows a cross-sectional view of the cable sealing and retaining device with the cable sealing device as shown in FIG. 2B;
FIGS. 4A-4D show a perspective side view of a cable sealing and retaining device according to another embodiment in a disassembled and assembled state with the cable sealing device as shown in FIG. 1D;
FIGS. 5A-5E show a perspective side view of a cable sealing and retaining device according to a further embodiment in a disassembled and assembled state with two cable sealing devices;
FIG. 6 shows a cross-sectional view of the housing shown in FIG. 5E;
FIGS. 7A-7C show a perspective side view of a fixation part of a cable sealing device provided with the cable sealing and retaining device shown in FIGS. 5A-5E, in a pre-installed manner on a cable without and with a sealing part accommodating a ring part;
FIG. 8 shows a perspective side view of a cable connection between two cable sealing devices according to a further embodiment usable for a cable sealing and retaining device as shown in FIGS. 5A to 5E;
FIG. 9 shows a perspective side view of a cable sealing and retaining device according to a further embodiment in a disassembled with two cable sealing devices according to a further embodiment connected to each other; and
FIG. 10 shows a perspective side view of a cable sealing device according to another embodiment in an assembled state.
FIGS. 1A to 1D show a perspective side view of a connectorized cable 1 to which the cable sealing device 10 according to an embodiment is attached. Particularly, FIG. 1A shows the connectorized cable 1 which comprises a cable 2 fixed to a connector 7 by an attaching part 4. The connection of the cable 2 to the connector 7 via the attaching part 4 is performed as known e.g. from WO 2007/039585 A1. Accordingly, the attaching part 4 made of a metal component comprises a connection portion (not shown) on which strain relief elements (not shown) provided with the cable 2 are attached and secured by means of a metal crimp (not shown). A heat shrink tube 3 is provided on the metal crimp and the cable 2 to seal the connection therebetween. The attaching portion 4 comprises outside the cable 2 two ring-shaped flanges 6, each providing surfaces directing in longitudinal direction, wherein the inner surfaces sandwich outer circumferential flat surfaces 5 formed by a polygonal shaped body (here a square) and connected to each other in circumferential direction by tapered edges. The surfaces of the flanges 6 and the outer circumferential flat surfaces 5 form positive locking faces. The heat shrink tube 3 ends at one surface side of the flange 6 arranged in longitudinal direction of the cable 2 between the body 5 and the connection portion of the attaching part 4. In this context, an axial direction corresponds to the longitudinal direction of the cable 2, and a radial direction refers to a direction running transverse thereto. A circumferential direction relates to a direction running around the longitudinal direction. The flange 6 provided between the heat shrink tube 3 and the outer circumferential flat surface 5 is disc-shaped and has an outer diameter equal or smaller than an outer diameter of the heat shrink tube 3, thereby providing an abutment surface for the axial end side of the heat shrink tube 3. The cable 2 abuts in axial direction against the connection portion on which the strain relief elements are attached. The opposing flange 6 has a diameter equal or smaller than a diameter of the connector 7 being an SC connector and providing an abutment surface for an axial end side, i.e. a rear side of said connector 7 in axial direction of the connectorized cable 1.
As shown in FIG. 1A, a fixation part 12 forming part of the cable sealing device 10 is adapted to be attachable to the flanges 6 sandwiching the positive locking faces 5. The fixation part 12 is formed of a C-shape and comprises at its outer circumference, an external thread 24. The inner circumference of the fixation part 12 is substantially C-shaped and is divided in its axial direction into three sections. An outer circumference of the axial outer sections adopt a shape of an outer circumference of the flanges 6, respectively. Particularly, each outer section has a ring-segment-shaped bottom formed by a radius corresponding to a radius of the associated flange 6 and is adapted to receive the respective flange 6. From the circumferential ends of said ring-segment-shaped bottom, extend each a straight surface ending at the windings forming the external thread 24. Moreover, the middle section 9 sandwiched by the outer sections is basically U-shaped and adopts the surface profile of the positive locking face 5. The middle section 9 has a width in axial direction of the fixation part 12 corresponding to an axial length of the positive locking face 5 sandwiched by the flanges 6. Particularly, the legs forming the U-shape of the middle section 9 protrudes from the inner circumference of the fixation part 12 such, that the axial end surfaces 8 of the middle section form abutments surfaces for the axial surfaces of the flanges 6 facing the positive locking face 5. Hence, by mounting the fixation part 12 on the attaching part 4, the fixation part 12 is retained in axial direction of the attaching part 4. Additionally, the legs of the middle section extending from the bottom toward the opening 20 form each at their radial outer surface sides a step portion 18 providing thereby first securing means. The first securing means 18 are embedded in the opening 20. Particularly, the end faces of the legs directing to a radial outer side of the fixation part 12 and accommodating the first securing means 18 are arranged at a radial inner side of the fixation part 12 as a bottom of the windings which forms the external thread 24.
FIGS. 1B to 1D show the sealing part 11 which is formed substantially of a sleeve having a cylindrical shape at one longitudinal end side relating to the front side, and a rectangular shape at the opposed longitudinal side, referring to a rear side of the sealing part 11, wherein the front side portion merges with the rear side portion at a flange portion 29. The flange portion 29 has an outer diameter larger than an outer diameter of the front side portion providing an outer support portion 17 of the sealing part 11. Said outer support portion 17 has a circumferential groove receiving an outer seal ring 15. The outer seal ring 15 slightly protrudes radially from the outer circumferential surface of the outer support portion 17 in its received state in order to come into contact with a sealing section 42; 52; 62 of a cable sealing and retaining device 40; 50; 60 as described further below. The front side portion of the sealing part 11 comprises the receptacles 28 for receiving the circumferential projections 27 of the ring part 13. At the front side between the receptacles 28, second securing means 19 protrudes axially in front side direction, i.e. away from the flange portion 29 and the rear side.
The second securing means 19 is hammer head shaped, wherein the hammer head projects in circumferential direction the opening 20 defined by the first securing means 18. The hammer head has a circumferential width corresponding to a circumferential opening width defined in circumferential direction by the end faces of the external thread 24. As particularly shown in FIG. 1D, the axial length of the second securing means 19 corresponds to an axial length of the fixation part 12. In the assembled state of the cable sealing device 10, the hammer head is fitted in the circumferential opening defined by the external thread 24. Further, an axial end surface of the second securing means 19 forms with an axial end surface of the fixation part 12, a common surface. On a radial inner side of the second securing means 19, which is the side directing to the axis of the cable sealing device 10, ratchets are provided which engage the step-shaped first securing means 18 of the fixation part 12 in the assembled state of the cable sealing device 10. Thereby, the sealing part 11 is secured to the fixation part 12 in axial direction. Further, as the second securing means 19 is fitted in the assembled state of the cable sealing device 10 in the circumferential opening defined by the external thread 24, circumferential end faces of the second securing means 19 abut against circumferential end surfaces of the external thread 24, whereby the securing of the sealing part 11 in circumferential direction is further improved. Additionally, the first securing means 18 (FIG. 1C) and the second securing means 19 comprise sliding surfaces formed by tapered edges provided at the sides of the step-formed first securing means 18 facing the second securing means 19 and at the ratchets of the second securing means 19 facing the first securing means 18, respectively. Moreover, the second securing means 19 has a circumferential extending incision 30 provided at the transition from the outer support section 17 to the second securing means 19 by which the second securing means 19 is improved to be elastically pivotable about incision 30 in radial direction of the sealing part 11. By connection of the sealing part 11 to the fixation part 12, the second securing means 19 slides with its tapered edges over the tapered edges of the first securing means 18, wherein the ratchets of the second securing means 19 engage behind the radial extending surface of the step-formed first securing means 18 in the assembled state of the cable sealing device 10 to axially fix the sealing part 11 to the fixation part 12. The second securing means 19 has a further tapered section formed on the radial inner side at a longitudinal free end side, whereby the longitudinal free end side provides a handleable tip end 31 to allow manually disassembling of the sealing part 11 from the fixation part 12 by lifting the tip end 31 in radial outside direction and, thereby, releasing the second securing means 19 from the first securing means 18.
The sealing part 11 has a breakage zone formed by an incision 32 extending on the circumferential outer surface of the sealing part 11 in longitudinal direction. The sealing part 11 provides a cavity 33, which intersects the breakage zone 32 in the area of the outer support portion 17. The breakage zone 32 has such a depth that the sealing part 11 can be released from the connectorized cable 1 by breaking the sealing part 11 along the breakage zone 32. The breakage may be conducted e.g. by means of a lever insertable into the cavity 33. As shown in FIGS. 1B to 2A, the breakage zone 32 extends axially over the whole longitudinal length of the sealing part 11. That is, the breakage zone 32 extends from the flange portion 29 towards the front side until the receptacles 28, and from the flange portion 29 towards the rear side of the sealing part 11 which is basically U-shaped and forming securing formations 35 on an outer circumference with a gap 34 provided in elongation of the breakage zone 32.
With reference to FIG. 3, a configuration of the inner sealing portion 16 of the sealing part 11 according to this embodiment will now be described. The sealing part 11 provides a passageway through which the cable 2 covered by the heat shrink tube 3 is guided. The passageway is substantially divided into a front section and a rear section. The rear section extends from the rear side of the sealing part 11 towards the front side until a step provided at a position radially below the outer support portion 17 is reached, wherein said rear section has an inner diameter slightly larger than an outer diameter of the heat shrink tube 3 to allow guiding of the cable 2 with the heat shrink tube 3 provided at the end thereof through said passageway. The front section arranged in longitudinal direction adjacently to the rear section extends from the rear section to the front side of the sealing part 11, i.e. from the step to a transverse plane containing the circumferential incision 30 provided at the transition between the outer support portion 17 and the longitudinal end of the neck of the hammer-head shaped second securing means 19. The front section forms the inner support section 16. Said inner support section 16 has an inner diameter larger than an inner diameter of the rear section. The step provided between the rear and front sections forms a cavity 23 opened to the front side, i.e. to the side facing the fixation part 12, and to the passageway to accommodate the inner seal ring 14. The inner seal ring 14 is mounted on the heat shrink tube 3 which forms part of the cable 2. Due to the connection portion of the attaching part 4 extending below the inner seal ring 14, said inner seal ring 14 is further supported by the attaching portion 4. Moreover, the inner seal ring 14 has an outer diameter larger than an inner diameter of the cavity 23. Hence, the inner seal ring 14 applies a pressing force in radial directions in a received state in the cavity 23, i.e. toward the passageway and toward the sealing part 11. Due to the dimension of the inner seal ring 14 with respect to the cavity 23, the sealing part 11 is further securable on the cable 2 by the pressure applied by the inner seal ring 14 in its received state. Moreover, tolerances between the inner seal ring 14 and the cable 2 may be compensated to obtain a reliable sealing therebetween.
The cable sealing device 10 is removable from the connectorized cable 1 in a reversed order. Thereby, the sealing part 11 may be removed from the connectorized cable 1 by breaking the breakage zone 32 and by bending the opened sealing part 11 so as to be removable from the cable 2. Thereby, the connection of the connectorized cable 1 formed between the connector 7, the attaching part 4 and the cable 2 does not need to be necessarily opened.
FIGS. 4A to 4D show a perspective side view of a cable sealing and retaining device 60 according to another embodiment in a disassembled and assembled state with the cable sealing device 10. The cable sealing and retaining device 60 forms a wall mounting 64 formed integrally with a sleeve portion 67 extending perpendicular from a front side surface of the wall mounting 64. The sleeve portion 67 provides a through-hole extending through the wall mounting 64 and forms at one longitudinal end side an opening 61 which receives the cable sealing device 10. The sleeve portion 67 has a length in longitudinal direction corresponding to a longitudinal length of the outer support portion 17 supporting the outer seal 15. Further, the sleeve portion 67 merges at a rear side of the wall mounting 64, which is the side opposing the side from which the sleeve portion 67 extends, with said rear side surface of the wall mounting 64 so as to form a common rear surface.
The cable sealing and retaining device 50 comprises a sleeve-shaped housing 53 having two openings 51 at its longitudinal end sides, wherein the housing 53 is adapted to accommodate two cable sealing devices 10, which are each mounted on a connectroized cable 1, and wherein the connectors 7 of the connectorized cables 1 are connected to each other via an adapter 70 inside the housing 53. The connectors 7 are formed of male connectors, wherein the adapter 70 provides female connectors at its longitudinal end sides receiving male connectors 7, respectively. As shown in FIG. 7C, the cable sealing device 10 has a flange portion 29 with an outer diameter corresponding to an outer diameter of the outer support portion 17 provided for receiving the outer seal ring 15. The cable sealing device 10 may be alternatively combined with the cable sealing device 10 having the flange portion 29 with a larger outer diameter than the outer support portion 17 (see FIG. 1D).
Due to the provision of the tension support part 56, a tension force caused e.g. by a pulling force acting on the cables 2 in longitudinal direction and normally transmitted to the connection formed by the connectors 7 and the adapter 70, can be bypassed via the fixation part 12 (attaching part 4) to the tension support part 56 from one cable sealing device 10 side to the other one without affecting the connection formed therebetween. In other words, the tension force acting on the cables in longitudinal direction will not be further transmitted to the connection formed between the fixation parts 12 (attaching parts 4). Thus, the pulling force will bypass the connection and the same is reliably retained by means of the tension support part 56 secured at its longitudinal end sides to the fixation parts 12 (attaching parts 4). Moreover, a twist between the cable sealing devices 10, i.e. a turning moment on the connection formed between the connectors 7 is also prevented, since a circumferential move of one cable sealing device 10 will cause always a circumferential move of the other cable sealing device 10 without transmitting the turning moment to the connection between the fixation parts 12 (attaching parts 4) due to the connection of the tension support part 56 to the fixation parts 12 (attaching parts 4), respectively.
FIG. 8 shows a perspective side view of a cable connection between two cable sealing devices 100 according to a further embodiment usable for the cable sealing and retaining device 50 as described above. The cable sealing device 100 differs substantially from the above-described cable sealing device 10 by an outer shape of the fixation part 102 and of the sealing part 101. Accordingly, only said specific outer shape will be dealt with in the following, wherein further shapes of the fixation part 102 and of the sealing part 101 relate to shapes of the fixation part 12 and the sealing part 11 described above along with the cable sealing device 10, wherein similar reference signs refer to similar parts and portions, respectively. The fixation part 102 provides an interstice 103 extending in circumferential direction for receiving the key-forming flange of the tension support part 56 from a radial outer side to form the key-and-slot-connection between the tension support part 56 and the fixation part 102. Particularly, the interstice 103 provides at its longitudinal end sides an abutment for the longitudinal surfaces of the key-forming flange of the tension support part 56. Thereby, the positive locking in longitudinal direction between the fixation part 102 and the tension support 56 is achieved. Even though the fixation part 102 is shown of a ring shape, the fixation part 102 can adopt any shape suitable for providing the interstice 103. Accordingly, the fixation part 102 may be formed of a C-shaped and connected to the sealing part 102 as described above. Furthermore, the fixation part 102 may be formed of two parts mounted on the attaching part from a radial outer side and connected to each other by latching means, for instance. The sealing part 101 provides an outer shape adapted to the outer shape of the fixation part 102 in order to allow securing therebetween at least in one longitudinal direction side, for instance, by abutment. As shown in FIG. 8, the sealing part 101 has a conical portion 104 between the fixation part 102 and the outer seal 15, wherein an outer diameter of the conical portion 104 decreases in longitudinal direction from the outer support portion of the sealing part 101, which supports the outer seal 15, until the fixation part 102 is reached. According thereto, the sealing part 101 provides a continuous crossing between an outer surface of the fixation part 102 and an outer surface of the outer support portion supporting the outer seal 15. Thus, the housing 53 can be moved in longitudinal direction over the fixation part 102 and the sealing part 101 until the outer seal 15 contacts the sealing section 52 provided inside the housing 53 without getting stuck.
FIG. 10 shows a further embodiment of a connection of the cable sealing device 10 to a cable 200. Same reference signs refer to similar parts as described above. The cable sealing device 10 is particularly mounted on the cable 200 guiding a signal transmitting element 2012 and joint to a connection portion of the attaching part at least by means of a heat shrink tube 300, wherein the cable 200 does not be provided with a connector at a longitudinal free end side portion projecting from the fixation part 12. The longitudinal free end side portion of the attaching part provides a connection end 202 by which the cable 200 may be further operated. However, the present invention is not to be construed as to be limited thereto. The attaching part may be generally provided with or without such a connection end and/o with or without the protrusion 26 as described above. Accordingly, the attaching part differs from the attaching part shown particularly in FIGS. 1A to 1D by omission of the connector. Hence, the connector does not form a necessary part for mounting the cable sealing device 10 on the cable 2. The cable sealing device 10 may be mountable on any kind of cables in order to retain and/or seal the cable guidable therethrough.
1 connectorized cable
2, 200 cable
3, 300 heat shrink tube
4 attaching part
5, 6 positive locking face
10, 100 cable sealing device
11, 101 sealing part
12, 102, 112 fixation part
13 ring part
14 inner seal ring
15 outer seal ring
16 inner support portion
17 outer support portion
18 first securing means
19 second securing means
21 longitudinal protrusion
23, 33 cavity
24 external thread
27 ring part
29 flange portion
30 circumferential incision
31 tip end
32 breakage zone
34 securing formations
40, 50, 60, 80 cable sealing and retaining device
41, 51, 61 opening
42, 52, 62 sealing section
43 internal thread engagement
44 pulling attachment member
46, 53 housing
47, 67 sleeve portion
48 flat surface portion
49 accommodating section
54 recess portion
55 clip element
56 tension support part
58 elongation
59 support wall
63 lock nut
64 wall mounting
70, 71 adapter
81 housing half
83 pin-receiving hole
103 interstice
104 conical portion
105 abutment portion
201 signal transmitting element
202 connection end
an attaching part securable to the cable, the attaching part including accessible outer positive locking faces extending along a circumference and along a longitudinal axis of a cable;
a fixation part adapted to be mountable on the attaching part, the fixation part having inner abutment faces adapted to co-operate with the outer positive locking faces of the attaching part to longitudinally and rotationally lock the fixation part relative to the attaching part; and the fixation part including a first securing arrangement; and
a sealing part providing a passageway through which the cable is sealingly guidable, the sealing part including an inner seal disposed in the passageway and an outer seal arranged on an outer circumference of the sealing part, the sealing part including a second securing arrangement that is configured to engage the first securing arrangement of the fixation part to longitudinally and rotationally lock the sealing part to the fixation part.
2. The cable sealing device according to claim 1, wherein the fixation part provides additional positive locking structures disposed on an outer circumference freely accessible from a radial outer side and/or disposed on a longitudinal end section of the fixation part.
3. The cable sealing device according to claim 2, wherein the positive locking means on the outer circumference of the fixation part includes a thread engagement or a bayonet fitting.
4. The cable sealing device according to claim 2, wherein the positive locking means at the longitudinal free end section of the fixation part includes a protrusion longitudinally projecting from the longitudinal end section and providing a groove section extending in circumferential direction and forming abutment faces in longitudinal direction accessible from the radial outer side.
5. The cable sealing device according to claim 1, wherein the fixation part is C-shaped to be radially mountable on the attaching part.
6. The cable sealing device according to claim 5, wherein the first securing arrangement defines a circumferential opening in the fixation part that forms the C-shape, wherein the second securing arrangement has a hammer-head shaped projection which extends into the circumferential opening and engages the first securing arrangement to provide a positive longitudinal locking between the fixation part and the sealing part.
7. The cable sealing device according to claim 6, wherein the fixation part has opposing circumferential end surfaces defining the circumferential opening, and wherein the hammer-head projection and/or a neck of the hammer-head projection is adapted to fit between the opposing circumferential end surfaces to rotationally lock the sealing part to the fixation part.
8. The cable sealing device according to claim 5, wherein the sealing part comprises a cavity for the inner seal, the cavity having an open front side that faces the fixation part and an open inner radial side facing the passageway.
9. The cable sealing device according to claim 8, wherein the inner seal has an outer diameter larger than an inner diameter of the cavity.
10. The cable sealing device according to claim 8, wherein the cable sealing device also includes a ring part arranged between the fixation part and the inner seal to close the open front side of the cavity.
11. The cable sealing device according to claim 10, wherein at least the fixation part and the ring part or the sealing part and ring part provide opposing twist preventing means adapted to co-operate with each other so as to prevent a twist therebetween.
12. The cable sealing device according to claim 11, wherein one of the fixation part and the ring part comprises at least one longitudinal protrusion and wherein the other one thereof comprises at least one notch for receiving the at least one longitudinal protrusion so as to provide therebetween a positive rotational locking; and wherein the ring part comprises at least one circumferential projection protruding radially from a circumference of the ring part, and wherein the sealing part provides at least one receptacle for receiving the at least one circumferential projection so as to provide therebetween a positive rotational locking.
13. The cable sealing device according to claim 1, wherein the sealing part provides a longitudinally extending breakage zone along which breaking of the sealing part is facilitated.
14. The cable sealing device according to claim 1, wherein the sealing part provides at a rear end a polygonal shaped end portion, wherein said polygonal shaped end portion comprises two parallel outer surfaces accessible from an outer side.
15. The cable sealing device according to claim 1, wherein the sealing part comprises on its outer circumference a circumferential groove receiving and supporting the outer seal.
16. The cable sealing device according to claim 1, further comprising a cable secured to the attaching part and extending through the passageway of the sealing part.
17. An attaching device securable to a cable comprising:
an attaching part securable to the cable and providing outer circumferential looking faces and outer longitudinal locking faces, and
a fixation part providing inner longitudinal locking faces and inner circumferential abutment faces, the inner longitudinal locking faces being adapted to cooperate with the outer longitudical locking faces of the attaching part and the inner circumferential locking faces being adapted to cooperate with the outer circumferential locking faces to longitudinally and rotationally lock the fixation part to the attaching part; wherein the fixation part also includes an outer locking arrangement disposed on an outer circumference and/or on a longitudinal end section freely accessible from a radial outer side of the fixation part;
a sealing part providing a passageway with an inner seal through which a cable is sealingly guidable, and an outer seal arranged on an outer circumference of the sealing part,
wherein the fixation part has a first securing arrangement that cooperates with a second securing arrangement of the sealing part to longitudinally and rotationally secure the sealing part to the fixation part.
18. The attaching device according to claim 17, wherein the fixation part is C-shaped to be radially mountable on the attaching part.
19. The attaching device according to claim 17, wherein the outer locking arrangement includes external threads.
20. A cable sealing device comprising
a sealing part providing a passageway with an inner seal through which a cable is sealingly guidable, and an outer seal arranged on an outer circumference of the sealing part, the sealing part having a cavity for the inner seal, the cavity having an open front side and an open inner radial side facing the passageway;
wherein a fixation part adapted to be mountable on an attaching part securable to the cable and providing accessible outer positive locking faces extending in circumferential and longitudinal direction of the cable, wherein the fixation part provides inner circumferential and axial abutment faces adapted to co-operate with the outer positive locking faces so as to provide therebetween a positive locking in circumferential and longitudinal directions; and wherein the fixation part has first securing means for cooperating with second securing means provided with the sealing part to secure the sealing part in circumferential and longitudinal direction against the fixation part; and
a ring part arranged between the fixation part and the inner seal to close the open front side of the cavity, which faces the fixation part.
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Patent Publication Number: 20130028569
Inventors: Dirk Kempeneers (Aarschot), Bart Vos (Geel), Kristof Vastmans (Boutersem), Danny Willy August Verheyden (Gelrode)
Application Number: 13/575,899
Current U.S. Class: Plug/termination Device (385/139); Structure Rearward Of Optical Fiber End Face To Secure Additional Fiber Or Cable Layers (385/86)
International Classification: G02B 6/00 (20060101); G02B 6/36 (20060101); H02G 3/22 (20060101); G02B 6/44 (20060101); H02G 15/007 (20060101); H02G 15/013 (20060101);