GB2521272A - Cable housing connector - Google Patents
Cable housing connector Download PDFInfo
- Publication number
- GB2521272A GB2521272A GB1421720.2A GB201421720A GB2521272A GB 2521272 A GB2521272 A GB 2521272A GB 201421720 A GB201421720 A GB 201421720A GB 2521272 A GB2521272 A GB 2521272A
- Authority
- GB
- United Kingdom
- Prior art keywords
- cable housing
- connector according
- cable
- housing connector
- conduit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
- G02B6/4439—Auxiliary devices
- G02B6/4459—Ducts; Conduits; Hollow tubes for air blown fibres
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/46—Processes or apparatus adapted for installing or repairing optical fibres or optical cables
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/46—Processes or apparatus adapted for installing or repairing optical fibres or optical cables
- G02B6/50—Underground or underwater installation; Installation through tubing, conduits or ducts
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/46—Processes or apparatus adapted for installing or repairing optical fibres or optical cables
- G02B6/50—Underground or underwater installation; Installation through tubing, conduits or ducts
- G02B6/52—Underground or underwater installation; Installation through tubing, conduits or ducts using fluid, e.g. air
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Laying Of Electric Cables Or Lines Outside (AREA)
Abstract
A cable housing connector (10) comprises a body (12) having a first end portion (14) defining a first main conduit (16) for receiving a first cable housing (30), and a second end portion (18) defining a second main conduit (20) for receiving a second cable housing (32). A separating member (22) between the first and second end portions extends between the first and second main conduits. The separating member defines a communication conduit (24) providing communication between the first and second main conduits, wherein the communication conduit tapers inwardly from the first main conduit to the second main conduit, and may have a frusto-conical configuration. The diameter of the communication conduit at the first cable housing end (B1, fig 3) may be greater than the first cable housing internal diameter (A1, fig 3), and the diameter of the communication conduit at the second cable housing end (B2, fig 3) may be less than the second cable housing internal diameter (A2, fig 3).
Description
Cable Housing Connector This invention relates to cable housing connectors. More particularly, but not exclusively, this invention relates to cable housing connectors for connecting cable housings for fibre optic cables.
When fibre optic cables are installed, the cable housing is first installed underground.
The installation may involve connecting two lengths of the cable housing together.
After the cable housing has been installed, the fibre optic cable is then blown down the casing by a technique known in the art. Where a cable housing connector has been used to connect two lengths of the cable housing, the fibre optic cable can become snagged in the cable housing connector thereby making full installation of the fibre optic cable difficult.
According to one aspect of this invention, there is provided a cable housing connector comprising a body having a first end portion defining a first main conduit for receiving a first cable housing, and second end portion defining a second main conduit for receiving a second cable housing, and a separating member between the first and second end portions extending between the first and second main conduits, the separating member defining a communication conduit providing communication between the first and second main conduits, wherein the communication conduit tapers inwardly from the first main conduit to the second main conduit.
The communication conduit may have a first opening at the first main conduit and a second opening at the second main conduit.
The first cable housing may have a first internal diameter. The second cable housing may have a second internal diameter.
The diameter of the first opening of the communication conduit may be greater than the internal diameter of the first cable housing. The diameter of the second opening of the communication conduit may be less than the internal diameter of the second cable housing.
According to another aspect of this invention, there is provided a cable housing connector comprising a body having a first end portion defining a first main conduit for receiving a first cable housing having a first internal diameter, and second end portion defining a second main conduit for receiving a second cable housing having a second internal diameter, and a separating member between the first and second end portions extending between the first and second main conduits, the separating member defining a communication conduit providing communication between the first and second main conduits, wherein the communication conduit has a first opening at the first main conduit and a second opening at the second main conduit, the diameter of the first opening being greater than the internal diameter of the first cable housing, and the diameter of the second opening being less than the internal diameter of the second cable housing.
In one embodiment, the first and second internal diameters may be substantially equal to each other. The communication conduit may have a substantially frusto-conical configuration.
The first end portion may comprise a first cable receiving portion. The second end portion may comprise a second cable receiving portion.
The body may have a first end, wherein the first end portion extends from the separating member to the first end. The body may have a second end, wherein the second end portion extends from the separating member to the second end.
The diameter of the first opening of the communication conduit may be greater than the maximum tolerance of the first internal diameter of the first cable housing. The diameter of the second opening of the communication conduit may be less than the minimum tolerance of the second internal diameter of the second cable housing.
The first and second cable housings may be tubular and may be substantially cylindrical.
The first main conduit may comprise a first holding portion, which may extend from the separating member. The first holding portion may define a first bore in which the first cable housing may be held. The first main conduit may further include a first locating portion between the first holding portion and the first end. The first holding portion may extend from the separating member to a region substantially mid way between the separating member and the first end.
The second main conduit may comprise a second holding portion, which may extend from the separating member. The second holding portion may define a second bore in which the second cable housing may be held. The second main conduit may further include a second locating portion between the second holding portion and the second end to a region substantially mid way between the separating member and the second end.
The cable housing connector may further include first centring means for holding the first cable housing substantially centrally within the first main conduits. The first centring means may comprise a plurality of substantially evenly spaced elongate first gripping formations to grip the first cable housing. The first gripping formations may be provided on the first holding portion. The first gripping formations may extend the length of the first bore. The first gripping formations may be spaced circumferentially around the first bores.
The cable housing connector may further include second centring means for holding the second cable housing substantially centrally within the second main conduit.
The second centring means may comprise a plurality of substantially evenly spaced elongate second gripping formations to grip the second cable housing. The second gripping formations may be provided on the second holding portion. The second gripping formations may extend the length of the second bore. The second gripping formation may be spaced circumferentially around the second bore.
The gripping formations may comprise one or more splines, which may project into the first and second bores. The gripping formations may extend substantially lengthwise along the first and second main conduits.
The cable housing connector may further include first and second locating arrangements for locating the first and second cable housings in the respective first and second main conduits. Each locating arrangement may comprise a plurality of locating members. The first locating arrangement may be provided on the first end portion. The second locating arrangement may be provided on the second end portion.
The cable housing connector may further include sealing members, such as 0' rings, to seal between the first and second cable housings and the body.
The locating members of each locating arrangement may comprise a collet. The locating members of each locating arrangement may further comprise at least one load spreading member, which may comprise at least one washer.
The cable housing connector may comprise indicating means to indicate the orientation of the cable housing connector relative to the first and second cable housings. The indicating means may comprise a colour of the locating members in the first and second housings. For example, at least one of the locating members in the first main conduit may be green, and at least one of the locating members in the second main conduit may be red.
An embodiment of the invention will now be described by way of example only, with reference to the accompanying drawings, in which: Figure 1 is a sectional side view showing a cable housing connector; Figure 2 is a sectional side view of the cable housing connector shown in Figure 1 connecting first and second cable housings; Figure 3 is a close up view of the region marked Ill in Figure 2.
Referring to the drawings, a cable housing connector 10 comprises a tubular body 12 having a first end portion in the form of a first cable receiving portion 14 defining a first main conduit 16. The tubular body 12 also has a second end portion in the form of a second cable receiving portion 18 defining a second main conduit 20.
The body 12 further includes a separating member 22 between the first and second main conduits 16, 20. The separating member 22 defines a communication conduit 24 to provide communication between the first and second main conduits 16, 20.
The body has a first end 14A and a second opposite end 18A. The first cable receiving portion 14 extends from the separating member 22 to the first end 14A, and the second cable receiving portion 18 extends from the separating member 22 to the second end 18A.
The cable housing connector 10 further includes a first 0' ring 26 mounted in the first main conduit 16 and a second 0' ring 28 mounted in the second main conduit 20.
Referring to Figure 2, an elongate tubular first cable housing 30 is received in the first main conduit 16, and an elongate tubular second cable housing 32 is received in the second main conduit 20. The first 0' ring 26 provides a seal between the body 12 and the first cable housing 30, and the second 0' ring 28 provides a seal between the body 12 and the second cable housing 32.
In order to locate the first and second cable housings 30, 32 in the respective first and second main conduit 16, 20, first and second locating arrangements 34, 38 are provided. The first main conduit 16 comprises a first holding portion 40 extending from the separating member 22 to a region approximately half way between the separating member 22 and the first end 14A. The first holding portion 40 defines a first bore 41 in which the first cable housing 30 is held. The first main conduit 16 further includes a first locating portion 42 between the first holding portion 40 and the first end 14A.
The first locating arrangement 34 and the first 0' ring 26 are disposed within the first locating portion 42. A radially outwardly extending first shoulder portion 44 extends from the first holding portion 40 to the first locating portion 42.
The second main conduit 20 comprises a second holding portion 46 extending from the separating member 22 to a region approximately half way between the separating member 22 and the second end 18A. The second holding portion 46 defines a second bore 47 in which the second cable housing 32 is held. The second main conduit 20 further includes a second locating portion 48 between the second holding portion 46 and the first end 1 8A.
A radially outwardly extending second shoulder portion 50 extends between the second holding portion 46 and the second locating portion 48. The second locating arrangement 38 and the second 0' ring 28 are disposed within the second locating portion 48.
Each of the first and second main conduits 16, 20 further include centring means for holding the first and second cable housings 30, 32 substantially centrally within the first and second main conduits. The centring means may comprise a plurality of substantially evenly spaced elongate gripping formations 49, which are provided on each of the first and second holding portions 40, 46, and extend the length of the first and second bores 41, 47. The gripping formations 49 are spaced circumferentially around the first and second bores 41, 47.
The gripping formations 49 are in the form of splines, which project into the first and second bores 41, 47 to engage the first or second cable housing 30, 32 received by the respective first and second holding portions 40, 46. The engagement of the cable housings 30, 32 by the formations 49 holds the first and second cable housings 30, 32 substantially centrally within the respective first and second bores 41, 47.
Each of the first and second locating arrangements 34, 38 comprises a load spreading member in the form of a washer 52 and further comprises a collet 54.
Each of the collets 54 is resiliently deformable to clamp the respective first or second cable housings 30, 32. Each collet 54 comprises a plurality of radially outwardly extending projection 56 which can be received within apertures 59 defined in the body 12. Each projection 56 has a sloping surface 58 which slopes towards the first or second respective end 1 4A, 1 BA of the body 12.
When the first and second cable housings 30, 32 are received within the first and second main conduits 16, 20, the first and second cable housings 30, 32 are held by the collets 54. In the event that an attempt is made to withdraw the first or second cable housings 30, 32 from the respective first or second main conduits 16, 20, the collet 54 is moved so that the sloping surface 58 engages the edge of the respective aperture 59 pushing the projection 56 radially inwardly of the body 23, thereby urging the collet 54 into tighter clamping engagement with the first or second cable housings 30, 32.
Referring to Figure 3, there is shown a close up of the central region of the body 12, as shown in Figure 2. As can be seen, the first cable housing 30 has a first internal diameter Al, and the second cable housing 32 has a second internal diameter A2.
In the embodiment shown, the first internal diameter Al is substantially equal to the second internal diameter A2.
The communication conduit 24 has a first opening 62 at the first main conduit 16, and a second opening 64 at the second main conduit 20. The first opening 60 has a diameter Bi which is greater than the internal diameter Al of the first cable housing 30. The second opening 64 has a diameter B2 which is less than the internal diameter A2 of the second cable housing 32. The communication conduit 24 thus tapers inwardly from the first opening 62 to the second opening 64.
In use, it is necessary to arrange fibre optic cables (not shown) in the first and second cable housings 30, 32 so that the fibre optic cables extend through the first cable housing 30, through the connecting conduit 24 in the cable housing connector and through the second cable housing 32.
The fibre optic cable is arranged within the first and second cable housings 30, 32 after the first and second cable housings 30, 32 have been connected to each other by the cable housing connector 10, and installed, for example, in the ground. Using a technique that would be understood by the person skilled in the art, the fibre optic cables are blown down the cable housings 30, 32 in one direction, which in the embodiment shown in the drawings is in the direction indicated by the arrow X in Figure 3.
When the end of the fibre optic cable reaches the connector 10, it passes from the first cable housing 30 into the communication conduit 24 and will be deflected by the tapering wall 24A of the communication conduit 24 into the second cable housing 32.
As can be seen from Figure 3, the end of the tube wall of the first cable housing overlaps the inner surface 24A at the first opening 62. Thus, when the end of the fibre optic cable reaches the separating portion 22, the fibre optic cable is not obstructed by the separating portion 22 but passes into it. Similarly, since the diameter of the second opening 64 is less than the internal diameter of the second cable housing 32, the fibre optic cable does not snag against the end of the second cable housing 32 and simply passes into the second cable housing 32.
It will be appreciated that the diameter Bi of the first opening 62 will be greater than the inner diameter Al of the first cable housing 30, allowing for manufacturing tolerances. Also, the diameter B2 of the second opening 64 is less than the internal diameter B2 of the second main conduit 32 also allowing for manufacturing tolerances.
There is thus described a cable housing connector 10 which can be used to connect cable housings to one another prior to the installation of the cable housings in the ground and prior to the provision of the fibre optic cable within the cable housings.
The embodiment described herein provides the advantage that the danger of the fibre optic cable being snagged upon the cable housing connector 10 is obviated or mitigated.
Various modifications can be made without departing from the scope of the invention. For example, the centring means need not comprise the gripping formations 49. Instead, the centring means may comprise a bore having a polygonal profile, such as a square or triangular profile.
S
Claims (25)
- Claims 1. A cable housing connector comprising a body having a first end portion defining a first main conduit for receiving a first cable housing, and second end portion defining a second main conduit for receiving a second cable housing, and a separating member between the first and second end portions extending between the first and second main conduits: the separating member defining a communicating conduit providing communication between the first and second main conduits, wherein the communication conduit tapers inwardly from the first main conduit to the second main conduit.
- 2. A cable housing connector according to claim 1, wherein the communication conduit has a first opening at the first main conduit and a second opening at the second main conduit.
- 3. A cable housing connector according to claim 2, wherein the first cable housing has a first internal diameter, and the second cable housing has a second internal diameter, the diameter of the first opening of the communication conduit being greater than the internal diameter of the first cable housing, and the diameter of the second opening of the communication conduit being less than the internal diameter of the second cable housing.
- 4. A cable housing connector according to claim 3, wherein the diameter of the first opening of the communication conduit is greater than the maximum tolerance of the first internal diameter of the first cable housing, and wherein the diameter of the second opening of the communication conduit is less than the minimum tolerance of the second internal diameter of the second cable housing.
- 5. A cable housing connector according to claim 3 or 4, wherein the first and second internal diameters are substantially equal to each other.
- 6. A cable housing connector according to any preceding claim, wherein the communication conduit has a substantially frusto-conical configuration.
- 7. A cable housing connector according to any preceding claim, wherein the body has a first end, the first end portion extending from the separating member to the first end, and wherein the body has a second end, the second end portion extending from the separating member to the second end.
- 8. A cable housing connector according to any preceding claim, wherein the first and second cable housings are tubular and substantially cylindrical.
- 9. A cable housing connector according to any preceding claim, including a first holding portion within the first main conduit, said first holding portion extending from the separating member, wherein the first holding portion defines a first bore in which the first cable housing can be held.
- 10. A cable housing connector according to claim 9, including a first locating portion between the first holding portion and the first end, the first holding portion extending from the separating member to a region substantially mid way between the separating member and the first end.
- 11. A cable housing connector according to claim 9 or 10, further including first centring means for holding the first cable housing substantially centrally within the first main conduit.
- 12. A cable housing connector according to claim 11, wherein the first centring means comprises a plurality of substantially evenly spaced elongate first gripping formations to grip the first cable housing, the first gripping formations being provided on the first holding portion.
- 13. A cable housing connector according to claim 12, wherein the first gripping formations extend the length of the first bore, and wherein the first gripping formations are spaced circumferentially around the first bore.
- 14. A cable housing connector according to of claims 9 to 13, including a second holding portion, which extends from the separating member, wherein the second holding portion defines a second bore in which the second cable housing can be held.
- 15. A cable housing connector according to claim 14, further including a second locating portion between the second holding portion and the second end, the second holding portion extending from the separating member to a region substantially mid way between the separating member and the second end.
- 16. A cable housing connector according to claim 14 or 15, further including second centring means for holding the second cable housings substantially centrally within the second main conduit.
- 17. A cable housing connector according to claim 16, wherein the second centring means comprises a plurality of substantially evenly spaced second elongate gripping formations to grip the second cable housing, the second gripping formations being provided on the second holding portion.
- 18. A cable housing connector according to claim 17, wherein the second gripping formations extend the length of the second bore, and wherein the second gripping formations are spaced circumferentially around the second bore.
- 19. A cable housing connector according to any preceding claim, including first and second locating arrangements for locating the first and second cable housings respectively in the first and second main conduits.
- 20. A cable housing connector according to claim 19, wherein the first locating arrangement is provided on the first end portion, and wherein the second locating arrangement is provided on the second end portion.
- 21. A cable housing connector according to claim 20, wherein the first and second locating arrangements comprise respective first and second collets and respective first and second load spreading members.
- 22. A cable housing connector according to any preceding claim, further including sealing members to seal between the first and second cable housings and the body.
- 23. A cable housing connector according to any preceding claim, including indicating means to indicate the orientation of the cable housing connector relative to the first and second cable housings.
- 24. A cable housing connector according to claim 23, wherein the indicating means comprises a colour of the locating members in the first and second housings.
- 25. A cable housing connector substantially as herein described with reference to the accompanying drawings.II
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GBGB1321994.4A GB201321994D0 (en) | 2013-12-12 | 2013-12-12 | Cable housing connector |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| GB201421720D0 GB201421720D0 (en) | 2015-01-21 |
| GB2521272A true GB2521272A (en) | 2015-06-17 |
| GB2521272B GB2521272B (en) | 2016-12-07 |
Family
ID=50030827
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GBGB1321994.4A Ceased GB201321994D0 (en) | 2013-12-12 | 2013-12-12 | Cable housing connector |
| GB1421720.2A Active GB2521272B (en) | 2013-12-12 | 2014-12-05 | Cable housing connector |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GBGB1321994.4A Ceased GB201321994D0 (en) | 2013-12-12 | 2013-12-12 | Cable housing connector |
Country Status (1)
| Country | Link |
|---|---|
| GB (2) | GB201321994D0 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2543918A (en) * | 2015-09-11 | 2017-05-03 | Eden Ltd | Connecting assembly |
| WO2021005041A1 (en) * | 2019-07-10 | 2021-01-14 | Reliance Worldwide Corporation (UK) Limited | Tube coupling for fibre optic cable installation |
| US11976759B2 (en) | 2019-07-10 | 2024-05-07 | Reliance Worldwide Corporation (UK) Limited | Tube coupling |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1600223A (en) * | 1977-05-17 | 1981-10-14 | Int Standard Electric Corp | Self centering connector design |
| US4741590A (en) * | 1982-09-07 | 1988-05-03 | Amp Incorporated | Fiber optic connector |
| EP0520946A1 (en) * | 1991-06-24 | 1992-12-30 | Cables Cortaillod S.A. | Termination device for an optical cable |
| US20060093281A1 (en) * | 2004-10-28 | 2006-05-04 | Kesler James R | Fiber optic connector |
| US20110008011A1 (en) * | 2009-07-09 | 2011-01-13 | Verizon Patent And Licensing, Inc. | Fiber drop installation device |
-
2013
- 2013-12-12 GB GBGB1321994.4A patent/GB201321994D0/en not_active Ceased
-
2014
- 2014-12-05 GB GB1421720.2A patent/GB2521272B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1600223A (en) * | 1977-05-17 | 1981-10-14 | Int Standard Electric Corp | Self centering connector design |
| US4741590A (en) * | 1982-09-07 | 1988-05-03 | Amp Incorporated | Fiber optic connector |
| EP0520946A1 (en) * | 1991-06-24 | 1992-12-30 | Cables Cortaillod S.A. | Termination device for an optical cable |
| US20060093281A1 (en) * | 2004-10-28 | 2006-05-04 | Kesler James R | Fiber optic connector |
| US20110008011A1 (en) * | 2009-07-09 | 2011-01-13 | Verizon Patent And Licensing, Inc. | Fiber drop installation device |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2543918A (en) * | 2015-09-11 | 2017-05-03 | Eden Ltd | Connecting assembly |
| GB2543918B (en) * | 2015-09-11 | 2020-04-15 | Eden Ltd | Connecting assembly |
| WO2021005041A1 (en) * | 2019-07-10 | 2021-01-14 | Reliance Worldwide Corporation (UK) Limited | Tube coupling for fibre optic cable installation |
| CN114450609A (en) * | 2019-07-10 | 2022-05-06 | 信实环球企业(英国)有限公司 | Pipe coupling for fiber optic cable installation |
| GB2585670B (en) * | 2019-07-10 | 2023-08-02 | Reliance Worldwide Corporation Uk Ltd | A fibre optic cable connector |
| US11976759B2 (en) | 2019-07-10 | 2024-05-07 | Reliance Worldwide Corporation (UK) Limited | Tube coupling |
Also Published As
| Publication number | Publication date |
|---|---|
| GB201321994D0 (en) | 2014-01-29 |
| GB201421720D0 (en) | 2015-01-21 |
| GB2521272B (en) | 2016-12-07 |
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