EP2400594A2 - Cable connection system - Google Patents
Cable connection system Download PDFInfo
- Publication number
- EP2400594A2 EP2400594A2 EP11170795A EP11170795A EP2400594A2 EP 2400594 A2 EP2400594 A2 EP 2400594A2 EP 11170795 A EP11170795 A EP 11170795A EP 11170795 A EP11170795 A EP 11170795A EP 2400594 A2 EP2400594 A2 EP 2400594A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- fastener
- tool
- connector body
- external surface
- slot
- 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
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
- H01R4/28—Clamped connections, spring connections
- H01R4/30—Clamped connections, spring connections utilising a screw or nut clamping member
- H01R4/36—Conductive members located under tip of screw
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R43/00—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/46—Bases; Cases
- H01R13/52—Dustproof, splashproof, drip-proof, waterproof, or flameproof cases
- H01R13/5213—Covers
Definitions
- the present invention relates to the field of electrical cable connections.
- One known form of mechanical connector for connecting electrical cables comprises an electrically conductive connector body having one or more tunnels for receipt of cables to be connected. Threaded fasteners extend through threaded apertures formed in the body and communicate with each tunnel. The threaded fasteners are threadingly advanced through the threaded apertures such that the leading face of the fastener engages the conductor of the cable located in the tunnel, thereby forming an electrical connection between the cable and the body.
- shear head fasteners have been utilised in such connection devices, configured such that the head of the fastener breaks from the body of the fastener after application of a predetermined torque which governs the compressive load applied to the cable by the leading end of the fastener.
- the remaining body of the fastener typically protrudes from the connector body and may present sharp edges or voids.
- the exposed portion of fastener typically needs to be filed back level with the connector body for aesthetical considerations and to minimise or eliminate any "corona effect" for medium voltage applications.
- the degree to which the fastener body protrudes from the connector body will generally vary dependent upon the size of cable being joined, given that most mechanical connectors accept a range of cable diameters.
- the present invention provides a cable connection system comprising:
- said fastener comprises two said slots and said installation tool comprises two said tabs, each adapted to be received in one of said slots.
- slots are substantially diametrically opposed.
- said tool comprises a tool body adapted to be received in a cavity defined by said fastener wall and an outer tube arranged about said tool body, said tab extending between said tool body and said outer tube and said detent surface being defined by a leading end of said outer tube.
- said tool further comprises a handle extending from said outer tube.
- said external surface of said connector body is provided with a frustoconical region extending about said threaded aperture, said detent surface having a matching taper for engaging said frustoconical region.
- said system further comprises a plug adapted to be received in said aperture following installation of said fastener so as to cover a remaining portion of said fastener.
- said plug has a head configured to be substantially flush with said external surface of said connector body when received in said aperture.
- said fastener is formed of brass and said tool is formed of steel.
- the present invention provides a cable connector comprising:
- said fastener comprises two said slots, each adapted to receive a tab of the installation tool.
- said slots are substantially diametrically opposed.
- said external surface of said connector body is provided with a frustoconical region extending about said threaded aperture, for engaging the detent surface of the installation tool having a matching taper.
- a cable connection system comprises a cable connector comprising a connector body 10, and a fastener 20, in combination with an installation tool 30 and, optionally, a plug 40.
- the connector body 10 is formed of an electrically conductive material, such as brass or aluminium, and is provided with a tunnel 11 for receipt of a cable to be connected.
- the connector body 10 is also provided with a threaded aperture 12 that communicates with the tunnel 11 and opens onto an external surface 13 of the connector body 10.
- the connector body 10 may be of any of various forms, including a cable terminal lug, link, or any of other various known forms of mechanical electrical connector.
- the connector body 10 may be provided with two or more tunnels 11 and associated threaded apertures 12 for separate receipt of multiple electrical cables. Alternatively, it is envisaged that the connector body 10 may be provided with other means for connecting additional cables to the connector body 10 by any of various other known means.
- the connector body 10 may be provided with two or more threaded apertures 12 communicating with the same tunnel 11, so as to provide two (or more) connection points as may be dictated by the requirements of local authorities.
- the external surface 13 is provided with an annular or tapered or frustoconical region 14 that extends about the threaded aperture 12, as better depicted in Figure 6 .
- the fastener 20 is formed of an electrically conductive material, typically a relatively weak material such as brass.
- the fastener 20 extends between a fastener leading face 21 and a fastener trailing end 22.
- the fastener 20 has a hollow fastener body defined by a substantially cylindrical frangible fastener wall 23 so as to provide a rearwardly facing cavity 25 in the fastener 20.
- the fastener wall 23 has at least one, and here two, slots 24 formed therein and extending from the fastener trailing end 22 towards the fastener leading face 21. In the arrangement depicted, the two slots 24 are diametrically opposed.
- the fastener wall 23 is externally threaded for engagement with the threaded aperture 12 of the connector body 10.
- the thickness of the fastener wall 23 is selected so as to fail at a predetermined shear stress resulting from application of a predetermined torque to the fastener 20, as will be discussed further below.
- the leading face 21 of the fastener 20 is typically continuous, with the leading region of the fastener 20 between the end of the slot 24 and the leading face 21 being solid. For applications where insulation is stripped from the conductor of a cable prior to receipt within the tunnel 11, or where the cable is in the form of an uninsulated conductor, the leading face 21 will typically be flat.
- leading face 21 may be configured with an insulation piercing feature or features, or might alternately co-operate with an insulating piercing device located between the leading face 21 and cable.
- the installation tool 30 is adapted to rotatably drive the fastener 20 through the threaded aperture 12 of the connector body 10.
- the tool specifically has a pair of drive tabs 31 that are adapted to be slidingly received in the slots 24 of the fastener 20.
- the installation tool 30 also has a detent surface 32 that is adapted to engage the external surface 13 of the connector body 10 adjacent the threaded aperture 12.
- the detent surface 32 has a taper matching the frustoconical region 14 that extends about the threaded aperture 12 such that the tapered detent surface 32 engages the frustoconical region 14, as will be further discussed below.
- the specific installation tool 30 depicted is configured in the form of a tool body 33 that is here of generally cylindrical form and sized to be received in a cavity defined by the fastener wall 23.
- the installation tool 30 further has an outer tube 34 concentrically arranged around the tool body 33 with the drive tabs 31 extending between, and welded to, the tool body 33 and outer tube 34.
- the detent surface 32 is defined by the leading end of the outer tube 34.
- An annular passage 35 is defined between the tool body 33 and outer tube 34.
- the annular passage 35 is sized to snugly receive the fastener wall 23.
- a handle 36 radially extends from the outer tube 34 for a user to apply torque to the installation tool 30.
- the leading end 31a of each of the drive tabs 31 is flush with the leading edge of the tapered detent surface 32 defined at the leading end of the outer tube 34.
- the plug 40 which may be formed of plastic or any other suitable material, has a substantially cylindrical plug body 41 that is sized to be neatly received within the cavity 25 of the fastener 20 following installation, as will be discussed below.
- the plug body 41 may be provided with one or more slots 42 and sized to provide an interference fit with the fastener wall 23 so as to assist in retaining the plug 40 following installation.
- the plug 40 further has a head 42 with a tapered side wall 43 matching the frustoconical region 14 of the external surface 13 of the connector body 10 such that, when installed, the plug head 42 is substantially flush with the external surface 13.
- a cable 1 is inserted into the tunnel 11 of the connector 10 such that it passes beyond the threaded aperture 12.
- the fastener 20 will typically already be threadingly received in the threaded aperture 12 with the leading face 21 located adjacent to a wall of the tunnel 11.
- the installation tool 30 is then applied to the fastener 20, aligning the drive tabs 31 with the slots 24.
- the installation tool 30 is pushed into the fastener 20 until the detent surface 32 of the installation tool 30 engages the frustoconical region 14 of the external surface 13 of the connector body 10. This fixes the longitudinal location of the drive tabs 31 relative to the external surface 13 of the connector body 10.
- the leading end 31a of the drive tabs 31 are generally aligned with the intersection between the frustoconical region 14 and the threaded aperture 12.
- Torque is then applied to the installation tool 10 manually via the handle 36, thereby driving the fastener 20 into the threaded aperture 12, advancing the leading face 21 into the tunnel 11 towards the cable 1.
- the installation tool 30 remains in the same position as a result of engagement of the detent surface 32 with the frustoconical region 14. Accordingly, the slots 24 advance over the drive tabs 31.
- the fastener wall 23 will fail at this location, which is fixed relative to the external surface of the connector body. Accordingly, the fastener 30 will reliably fail at a location generally corresponding to the intersection between the frustoconical region 14 and the threaded aperture 12, irrespective of the size of cable 1.
- the trailing failed region of the fastener is then allowed to fall from the connector body 10 and the plug 40 is applied to the connector body 10 to cover the remaining portion of the fastener 20 and the threaded aperture 12.
- the plug body 41 is received within the cavity 25 of the fastener 20 and the tapered side wall 43 of the head 42 of the plug 40 engages the frustoconical region 14 of the external surface 13 of the connector body 10.
- the head 42 remains flush with the external surface 13, providing a neat aesthetic appearance and inhibiting any "corona" effect.
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Connections By Means Of Piercing Elements, Nuts, Or Screws (AREA)
- Coupling Device And Connection With Printed Circuit (AREA)
- Multi-Conductor Connections (AREA)
- Installation Of Indoor Wiring (AREA)
- Manufacturing Of Electrical Connectors (AREA)
Abstract
Description
- The present invention relates to the field of electrical cable connections.
- One known form of mechanical connector for connecting electrical cables comprises an electrically conductive connector body having one or more tunnels for receipt of cables to be connected. Threaded fasteners extend through threaded apertures formed in the body and communicate with each tunnel. The threaded fasteners are threadingly advanced through the threaded apertures such that the leading face of the fastener engages the conductor of the cable located in the tunnel, thereby forming an electrical connection between the cable and the body.
- In recent times, shear head fasteners have been utilised in such connection devices, configured such that the head of the fastener breaks from the body of the fastener after application of a predetermined torque which governs the compressive load applied to the cable by the leading end of the fastener. The remaining body of the fastener typically protrudes from the connector body and may present sharp edges or voids. The exposed portion of fastener typically needs to be filed back level with the connector body for aesthetical considerations and to minimise or eliminate any "corona effect" for medium voltage applications. The degree to which the fastener body protrudes from the connector body will generally vary dependent upon the size of cable being joined, given that most mechanical connectors accept a range of cable diameters.
- Forms of shear head fasteners have previously been proposed that adopt multiple weak points along the fastener body, allowing for failure at various locations along the length of the fastener, however such multiple weak point fasteners do not always reliably fail at the intended location and are still limited to a discrete number of locations for failure of the fastener. Thus, there are still times where there is a need to file and dress an exposed remaining portion of a fastener in such applications. This additional step of needing to file and dress the exposed section of fastener after forming the connection is tedious and labour intensive.
- It is an object of the present invention to substantially overcome or at least ameliorate the above disadvantage.
- In a first aspect, the present invention provides a cable connection system comprising:
- a connector body formed of an electrically conductive material, said connector body having a tunnel for receipt of a cable to be connected and a threaded aperture communicating with said tunnel and opening onto an external surface of said connector body;
- a fastener formed of an electrically conductive material and extending between a fastener leading face and a fastener trailing end, said fastener having a hollow fastener body defined by a substantially cylindrical frangible fastener wall having a slot formed therein and extending from said fastener trailing end towards said fastener leading face, said fastener wall being externally threaded for engagement with said threaded aperture; and
- an installation tool adapted to rotatably drive said fastener through said threaded aperture, said tool having a drive tab adapted to be slidingly received in said slot and to transmit torque from said tool to said fastener wall at said slot, said tool further having a detent surface adapted to engage said external surface of said connector body adjacent said aperture, thereby limiting travel of said tab along said slot, in use, such that upon application of a predetermined torque to said tool, said fastener wall fails at said tab at a predetermined location relative to said external surface of said connector body.
- Typically, said fastener comprises two said slots and said installation tool comprises two said tabs, each adapted to be received in one of said slots.
- Typically said slots are substantially diametrically opposed.
- In a preferred form, said tool comprises a tool body adapted to be received in a cavity defined by said fastener wall and an outer tube arranged about said tool body, said tab extending between said tool body and said outer tube and said detent surface being defined by a leading end of said outer tube.
- In a preferred form, said tool further comprises a handle extending from said outer tube.
- In one form, said external surface of said connector body is provided with a frustoconical region extending about said threaded aperture, said detent surface having a matching taper for engaging said frustoconical region.
- In one form, said system further comprises a plug adapted to be received in said aperture following installation of said fastener so as to cover a remaining portion of said fastener.
- Typically, said plug has a head configured to be substantially flush with said external surface of said connector body when received in said aperture.
- In a preferred form, said fastener is formed of brass and said tool is formed of steel.
- In a second aspect, the present invention provides a cable connector comprising:
- a connector body formed of an electrically conductive material, said connector body having a tunnel for receipt of a cable to be connected and a threaded aperture communicating with said tunnel and opening onto an external surface of said connector body;
- a fastener formed of an electrically conductive material and extending between a fastener leading face and a fastener trailing end, said fastener having a hollow fastener body defined by a substantially cylindrical frangible fastener wall having a slot formed therein and extending from said fastener trailing end towards said fastener leading face, said fastener wall being externally threaded for engagement with said threaded aperture;
- Typically, said fastener comprises two said slots, each adapted to receive a tab of the installation tool.
- Typically, said slots are substantially diametrically opposed.
- In one form, said external surface of said connector body is provided with a frustoconical region extending about said threaded aperture, for engaging the detent surface of the installation tool having a matching taper.
- A preferred embodiment of the present invention will now be described, by way of an example only, with reference to the accompanying drawings wherein:
-
Figure 1 is a perspective view of a connector body of a cable connection system according to a preferred embodiment; -
Figure 2 is a perspective view of a fastener of the cable connection device of the preferred embodiment; -
Figure 3 is a first perspective view of an installation tool of the cable connection system of the preferred embodiment; -
Figure 4 is a second perspective view of the cable connection system of the preferred embodiment; -
Figure 5 is a perspective view of a plug of the cable connection system of the preferred embodiment; -
Figure 6 is a partially cross-sectioned view of the cable connection system of the preferred embodiment prior to driving of the fastener; -
Figure 7 is a partially cross-sectioned view of the cable connection system of the preferred embodiment during driving of the fastener; -
Figure 8 is a partially cross-sectioned view of the cable connection system of the preferred embodiment following failure of the fastener; - Referring to the accompanying drawings, a cable connection system according to a preferred embodiment comprises a cable connector comprising a
connector body 10, and afastener 20, in combination with aninstallation tool 30 and, optionally, aplug 40. - Referring specifically to
Figure 1 , theconnector body 10 is formed of an electrically conductive material, such as brass or aluminium, and is provided with atunnel 11 for receipt of a cable to be connected. Theconnector body 10 is also provided with a threadedaperture 12 that communicates with thetunnel 11 and opens onto anexternal surface 13 of theconnector body 10. Theconnector body 10 may be of any of various forms, including a cable terminal lug, link, or any of other various known forms of mechanical electrical connector. Theconnector body 10 may be provided with two ormore tunnels 11 and associated threadedapertures 12 for separate receipt of multiple electrical cables. Alternatively, it is envisaged that theconnector body 10 may be provided with other means for connecting additional cables to theconnector body 10 by any of various other known means. It is also envisaged that two or more cables might be received within asingle tunnel 11. It is also envisaged that theconnector body 10 may be provided with two or more threadedapertures 12 communicating with thesame tunnel 11, so as to provide two (or more) connection points as may be dictated by the requirements of local authorities. In the particular embodiment depicted, theexternal surface 13 is provided with an annular or tapered orfrustoconical region 14 that extends about the threadedaperture 12, as better depicted inFigure 6 . - Referring now to
Figure 2 , thefastener 20 is formed of an electrically conductive material, typically a relatively weak material such as brass. Thefastener 20 extends between afastener leading face 21 and afastener trailing end 22. Thefastener 20 has a hollow fastener body defined by a substantially cylindricalfrangible fastener wall 23 so as to provide a rearwardly facingcavity 25 in thefastener 20. Thefastener wall 23 has at least one, and here two,slots 24 formed therein and extending from thefastener trailing end 22 towards thefastener leading face 21. In the arrangement depicted, the twoslots 24 are diametrically opposed. Thefastener wall 23 is externally threaded for engagement with the threadedaperture 12 of theconnector body 10. The thickness of thefastener wall 23 is selected so as to fail at a predetermined shear stress resulting from application of a predetermined torque to thefastener 20, as will be discussed further below. The leadingface 21 of thefastener 20 is typically continuous, with the leading region of thefastener 20 between the end of theslot 24 and the leadingface 21 being solid. For applications where insulation is stripped from the conductor of a cable prior to receipt within thetunnel 11, or where the cable is in the form of an uninsulated conductor, the leadingface 21 will typically be flat. In other applications, however, where it is intended to receive the insulated end of a cable in thetunnel 11, the leadingface 21 may be configured with an insulation piercing feature or features, or might alternately co-operate with an insulating piercing device located between the leadingface 21 and cable. - Referring now to
Figures 3 and 4 , theinstallation tool 30 is adapted to rotatably drive thefastener 20 through the threadedaperture 12 of theconnector body 10. The tool specifically has a pair ofdrive tabs 31 that are adapted to be slidingly received in theslots 24 of thefastener 20. For configurations where thefastener 20 is only provided with asingle slot 24, only asingle drive tab 31 would be provided. Similarly, where more than twoslots 24 are provided in thefastener 20, an equal number ofdrive tabs 31 would be provided in locations corresponding to theslots 24. Theinstallation tool 30 also has adetent surface 32 that is adapted to engage theexternal surface 13 of theconnector body 10 adjacent the threadedaperture 12. In particular, thedetent surface 32 has a taper matching thefrustoconical region 14 that extends about the threadedaperture 12 such that the tapereddetent surface 32 engages thefrustoconical region 14, as will be further discussed below. Thespecific installation tool 30 depicted is configured in the form of atool body 33 that is here of generally cylindrical form and sized to be received in a cavity defined by thefastener wall 23. Theinstallation tool 30 further has anouter tube 34 concentrically arranged around thetool body 33 with thedrive tabs 31 extending between, and welded to, thetool body 33 andouter tube 34. Thedetent surface 32 is defined by the leading end of theouter tube 34. Anannular passage 35 is defined between thetool body 33 andouter tube 34. Theannular passage 35 is sized to snugly receive thefastener wall 23. Ahandle 36 radially extends from theouter tube 34 for a user to apply torque to theinstallation tool 30. In the arrangement depicted, theleading end 31a of each of thedrive tabs 31 is flush with the leading edge of the tapereddetent surface 32 defined at the leading end of theouter tube 34. - Next referring to
Figure 5 , theplug 40, which may be formed of plastic or any other suitable material, has a substantiallycylindrical plug body 41 that is sized to be neatly received within thecavity 25 of thefastener 20 following installation, as will be discussed below. Theplug body 41 may be provided with one ormore slots 42 and sized to provide an interference fit with thefastener wall 23 so as to assist in retaining theplug 40 following installation. Theplug 40 further has ahead 42 with atapered side wall 43 matching thefrustoconical region 14 of theexternal surface 13 of theconnector body 10 such that, when installed, theplug head 42 is substantially flush with theexternal surface 13. - Use of the cable connection device will now be descried with particular reference to
Figures 6 through 8 . Acable 1 is inserted into thetunnel 11 of theconnector 10 such that it passes beyond the threadedaperture 12. At this stage, as depicted inFigure 6 , thefastener 20 will typically already be threadingly received in the threadedaperture 12 with the leadingface 21 located adjacent to a wall of thetunnel 11. - Referring to
Figure 7 , theinstallation tool 30 is then applied to thefastener 20, aligning thedrive tabs 31 with theslots 24. Theinstallation tool 30 is pushed into thefastener 20 until thedetent surface 32 of theinstallation tool 30 engages thefrustoconical region 14 of theexternal surface 13 of theconnector body 10. This fixes the longitudinal location of thedrive tabs 31 relative to theexternal surface 13 of theconnector body 10. Particularly, in the configuration depicted, theleading end 31a of thedrive tabs 31 are generally aligned with the intersection between thefrustoconical region 14 and the threadedaperture 12. Torque is then applied to theinstallation tool 10 manually via thehandle 36, thereby driving thefastener 20 into the threadedaperture 12, advancing the leadingface 21 into thetunnel 11 towards thecable 1. As thefastener 20 advances, theinstallation tool 30 remains in the same position as a result of engagement of thedetent surface 32 with thefrustoconical region 14. Accordingly, theslots 24 advance over thedrive tabs 31. - Once the leading
face 21 of thefastener 20 engages thecable 1, the torque applied to thefastener walls 23 at the edge of theslots 24 by way of thedrive tabs 31 increases. The torque applied results in a maximum shear load in thefastener wall 23 where it engages theleading end 31 a of eachdrive tab 31. Once this maximum shear load exceeds the ultimate shear stress of the material forming thefastener wall 23, thefastener wall 23 will fail at this location, which is fixed relative to the external surface of the connector body. Accordingly, thefastener 30 will reliably fail at a location generally corresponding to the intersection between thefrustoconical region 14 and the threadedaperture 12, irrespective of the size ofcable 1. The trailing failed region of the fastener is then allowed to fall from theconnector body 10 and theplug 40 is applied to theconnector body 10 to cover the remaining portion of thefastener 20 and the threadedaperture 12. Theplug body 41 is received within thecavity 25 of thefastener 20 and the taperedside wall 43 of thehead 42 of theplug 40 engages thefrustoconical region 14 of theexternal surface 13 of theconnector body 10. Thehead 42 remains flush with theexternal surface 13, providing a neat aesthetic appearance and inhibiting any "corona" effect. - A person of ordinary skill in the art will appreciate that the described principles of the cable connection system may be applied to any of various forms of cable connectors.
Claims (13)
- A cable connection system comprising:a connector body (10) formed of an electrically conductive material, said connector body having a tunnel (11) for receipt of a cable to be connected and a threaded aperture (12) communicating with said tunnel (11) and opening onto an external surface (13) of said connector body (10); said cable connection system being characterized by further comprising:a fastener (20) formed of an electrically conductive material and extending between a fastener leading face (21) and a fastener trailing end (22), said fastener (20) having a hollow fastener body defined by a substantially cylindrical frangible fastener wall (23) having a slot (24) formed therein and extending from said fastener trailing end (22) towards said fastener leading face (21), said fastener wall (23) being externally threaded for engagement with said threaded aperture (12); andan installation tool (30) adapted to rotatably drive said fastener (20) through said threaded aperture (12), said tool (30) having a drive tab (31) adapted to be slidingly received in said slot (24) and to transmit torque from said tool (30) to said fastener wall (23) at said slot (24), said tool (30) further having a detent surface (32) adapted to engage said external surface (13) of said connector body (10) adjacent said aperture (12), thereby limiting travel of said tab (31) along said slot (24), in use, such that upon application of a predetermined torque to said tool (30), said fastener wall (23) fails at said tab (31) at a predetermined location relative to said external surface (13) of said connector body (10).
- The system of claim 1, wherein said fastener (20) comprises two said slots (24) and said installation tool (30) comprises two said tabs (31), each adapted to be received in one of said slots (24).
- The system of claim 2, wherein said slots (24) are substantially diametrically opposed.
- The system of any one of claims 1 to 3, wherein said tool (30) comprises a tool body (33) adapted to be received in a cavity (25) defined by said fastener wall (23) and an outer tube (34) arranged about said tool body (33), said tab extending between said tool body (33) and said outer tube (34) and said detent surface (32) being defined by a leading end of said outer tube (34).
- The system of claim 4, wherein said tool further comprises a handle (36) extending from said outer tube (34).
- The system of any one of claims 1 to 5, wherein said external surface (13) of said connector body (10) is provided with a frustoconical region (14) extending about said threaded aperture (12), said detent surface (32) having a matching taper for engaging said frustoconical region (14).
- The system of any one of claims 1 to 6, wherein said system further comprises a plug (40) adapted to be received in said aperture (12) following installation of said fastener (20) so as to cover a remaining portion of said fastener (20).
- The system of claim 7, wherein said plug (40) has a head (42) configured to be substantially flush with said external surface (13) of said connector body (10) when received in said aperture (12).
- The system of any one of claims 1 to 8, wherein said fastener (20) is formed of brass and said tool (30) is formed of steel.
- A cable connector comprising:a connector body (10) formed of an electrically conductive material, said connector body having a tunnel (11) for receipt of a cable to be connected and a threaded aperture (12) communicating with said tunnel (11) and opening onto an external surface (13) of said connector body (10); said cable connector being characterized by further comprisinga fastener (20) formed of an electrically conductive material and extending between a fastener leading face (21) and a fastener trailing end (22), said fastener (20) having a hollow fastener body defined by a substantially cylindrical frangible fastener wall (23) having a slot (24) formed therein and extending from said fastener trailing end (22) towards said fastener leading face (21), said fastener wall (23) being externally threaded for engagement with said threaded aperture (12);wherein said slot (24) is configured to slidingly receive the drive tab (31) of an installation tool (30) for transmitting torque from the tool (30) to said fastener wall (23) at said slot (24), said external surface (13) of said connector body (10) being configured, adjacent said aperture (12), to engage a detent surface (32) of the installation tool (30), thereby limiting travel of the tab (31) along said slot (24), in use, such that upon application of a predetermined torque to the tool (30), said fastener wall (23) fails at the tab (31) at a predetermined location relative to said external surface (13) of said connector body (10).
- The connector of claim 10, wherein said fastener (20) comprises two said slots (24), each adapted to receive a tab (31) of the installation tool (30).
- The connector of claim 11, wherein said slots (24) are substantially diametrically opposed.
- The connector of any one of claims 10 to 12, wherein said external surface (13) of said connector body (10) is provided with a frustoconical region (14) extending about said threaded aperture (12), for engaging the detent surface (32) of the installation tool (30) having a matching taper.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU2010902786A AU2010902786A0 (en) | 2010-06-24 | Cable connection system |
Publications (3)
Publication Number | Publication Date |
---|---|
EP2400594A2 true EP2400594A2 (en) | 2011-12-28 |
EP2400594A3 EP2400594A3 (en) | 2012-02-22 |
EP2400594B1 EP2400594B1 (en) | 2013-04-24 |
Family
ID=44562725
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP20110170795 Not-in-force EP2400594B1 (en) | 2010-06-24 | 2011-06-21 | Cable connection system |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP2400594B1 (en) |
AU (1) | AU2011202893B1 (en) |
NZ (1) | NZ593496A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN113261160A (en) * | 2019-02-05 | 2021-08-13 | 塞母布雷有限公司 | Twist shear bolt for electrical connectors |
CN114630966A (en) * | 2019-09-10 | 2022-06-14 | 泰科电子斯麦尔公司 | Torque limiting nut for break bolt |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2591009A (en) * | 1948-12-20 | 1952-04-01 | Honeywell Regulator Co | Separable electrical connector |
US4653309A (en) * | 1986-01-07 | 1987-03-31 | The Boeing Company | Hand tool for installing plastic fasteners |
ATE199583T1 (en) * | 1998-08-18 | 2001-03-15 | Petri Gerhard Gmbh & Co Kg | TEAR-OFF HEAD SCREW |
FR2784780B1 (en) * | 1998-10-20 | 2002-09-20 | Schlumberger Ind Sa | PLUMBING KIT |
US6361258B1 (en) * | 2000-07-06 | 2002-03-26 | Gary V. Heesch | Permanently placeable fasteners, inserter head for fastener placement and related methods |
US6511341B1 (en) * | 2001-07-23 | 2003-01-28 | Itt Manufacturing Enterprises, Inc. | Break-away device |
DE102004039811A1 (en) * | 2004-08-11 | 2006-02-23 | Pfisterer Kontaktsysteme Gmbh & Co. Kg | Fastening means, in particular tear-off screw, associated system and method for screwing in the fastening means |
US20060110986A1 (en) * | 2004-11-20 | 2006-05-25 | Al-Cop Llc | Junction failure inhibiting connector |
ATE462084T1 (en) * | 2007-12-11 | 2010-04-15 | Nexans | SHEAR SCREW |
-
2011
- 2011-06-16 AU AU2011202893A patent/AU2011202893B1/en not_active Ceased
- 2011-06-16 NZ NZ59349611A patent/NZ593496A/en not_active IP Right Cessation
- 2011-06-21 EP EP20110170795 patent/EP2400594B1/en not_active Not-in-force
Non-Patent Citations (1)
Title |
---|
None |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN113261160A (en) * | 2019-02-05 | 2021-08-13 | 塞母布雷有限公司 | Twist shear bolt for electrical connectors |
CN114630966A (en) * | 2019-09-10 | 2022-06-14 | 泰科电子斯麦尔公司 | Torque limiting nut for break bolt |
Also Published As
Publication number | Publication date |
---|---|
EP2400594A3 (en) | 2012-02-22 |
EP2400594B1 (en) | 2013-04-24 |
NZ593496A (en) | 2011-09-30 |
AU2011202893B1 (en) | 2011-08-11 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US7947905B2 (en) | Method and apparatus for joining ends of wires and the like | |
US20060180335A1 (en) | Connector insulating boot for different sized conductors and associated methods | |
EP0849562B1 (en) | Connectors for wired networks for detonators | |
US3594703A (en) | Electrical tapoff connector | |
WO2008047119A1 (en) | A bolt for use in an electrical connector | |
US10109930B2 (en) | Wire connection assembly with telescopic binding screw | |
AU2007201069B2 (en) | Cable connection device | |
EP2400594B1 (en) | Cable connection system | |
US5446241A (en) | Apparatus and method for twist connecting wires | |
CN104425912B (en) | Earthing electric network swaged forging connector | |
EP0198310A1 (en) | Undercarpet cable | |
US10135157B2 (en) | Binding screw for a wire connection assembly and wire connection assembly | |
WO2014004860A1 (en) | Power cable splice sleeve and installation method | |
EP2128932A2 (en) | A mechanical compression electric connector for electric conductors | |
JP2007026802A (en) | Electric wire with ground wire | |
CN110994454B (en) | Insulating operation tool and method for temporary wire clamping hook | |
EP1914837A2 (en) | An electrical connector | |
JP2011249044A (en) | Connector and cable with connector | |
US20100099298A1 (en) | Connector for multistranded insulated conductor cable | |
JP2006331654A (en) | Wire with earth wire | |
EP1844525B1 (en) | Electrical connector | |
NZ553768A (en) | Cable connection device | |
AU2003203525B2 (en) | A Plug for a Mine Cable | |
CN114447872A (en) | Detachable cable joint | |
AU2008202361B2 (en) | Cable connection device |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AK | Designated contracting states |
Kind code of ref document: A2 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR |
|
AX | Request for extension of the european patent |
Extension state: BA ME |
|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
PUAL | Search report despatched |
Free format text: ORIGINAL CODE: 0009013 |
|
AK | Designated contracting states |
Kind code of ref document: A3 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR |
|
AX | Request for extension of the european patent |
Extension state: BA ME |
|
RIC1 | Information provided on ipc code assigned before grant |
Ipc: H01R 43/00 20060101ALI20120117BHEP Ipc: H01R 4/36 20060101AFI20120117BHEP |
|
17P | Request for examination filed |
Effective date: 20120622 |
|
GRAP | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOSNIGR1 |
|
GRAS | Grant fee paid |
Free format text: ORIGINAL CODE: EPIDOSNIGR3 |
|
GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: LEGEND CORPORATE SERVICES PTY LTD. |
|
AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR |
|
REG | Reference to a national code |
Ref country code: GB Ref legal event code: FG4D |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: EP |
|
REG | Reference to a national code |
Ref country code: AT Ref legal event code: REF Ref document number: 609111 Country of ref document: AT Kind code of ref document: T Effective date: 20130515 |
|
REG | Reference to a national code |
Ref country code: IE Ref legal event code: FG4D |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R096 Ref document number: 602011001426 Country of ref document: DE Effective date: 20130627 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: MC Payment date: 20130611 Year of fee payment: 3 Ref country code: IE Payment date: 20130611 Year of fee payment: 3 Ref country code: DK Payment date: 20130611 Year of fee payment: 3 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: FI Payment date: 20130611 Year of fee payment: 3 Ref country code: FR Payment date: 20130624 Year of fee payment: 3 |
|
REG | Reference to a national code |
Ref country code: LT Ref legal event code: MG4D |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: BE Payment date: 20130614 Year of fee payment: 3 |
|
REG | Reference to a national code |
Ref country code: NL Ref legal event code: VDEP Effective date: 20130424 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: GR Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20130725 Ref country code: SI Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20130424 Ref country code: SE Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20130424 Ref country code: PT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20130826 Ref country code: BE Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20130424 Ref country code: ES Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20130804 Ref country code: NO Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20130724 Ref country code: IS Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20130824 Ref country code: LT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20130424 Ref country code: FI Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20130424 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: BG Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20130724 Ref country code: RS Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20130424 Ref country code: PL Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20130424 Ref country code: CY Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20130424 Ref country code: LV Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20130424 Ref country code: HR Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20130424 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: CZ Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20130424 Ref country code: SK Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20130424 Ref country code: EE Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20130424 Ref country code: DK Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20130424 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: RO Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20130424 Ref country code: NL Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20130424 |
|
PLBE | No opposition filed within time limit |
Free format text: ORIGINAL CODE: 0009261 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT |
|
26N | No opposition filed |
Effective date: 20140127 |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R097 Ref document number: 602011001426 Country of ref document: DE Effective date: 20140127 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: IT Payment date: 20140630 Year of fee payment: 4 Ref country code: DE Payment date: 20130619 Year of fee payment: 3 |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R119 Ref document number: 602011001426 Country of ref document: DE |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: MC Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20140630 |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: PL |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: MT Payment date: 20130709 Year of fee payment: 3 |
|
REG | Reference to a national code |
Ref country code: IE Ref legal event code: MM4A |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: ST Effective date: 20150227 |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R119 Ref document number: 602011001426 Country of ref document: DE Effective date: 20150101 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: CH Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20140630 Ref country code: DE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20150101 Ref country code: IE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20140621 Ref country code: LI Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20140630 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: SM Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20130424 Ref country code: FR Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20140630 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: TR Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20130424 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: LU Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20130621 Ref country code: HU Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT; INVALID AB INITIO Effective date: 20110621 Ref country code: MK Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20130424 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: IT Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20150621 |
|
GBPC | Gb: european patent ceased through non-payment of renewal fee |
Effective date: 20150621 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: MT Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20140630 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: GB Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20150621 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: BE Free format text: THE PATENT HAS BEEN ANNULLED BY A DECISION OF A NATIONAL AUTHORITY Effective date: 20130424 |
|
REG | Reference to a national code |
Ref country code: AT Ref legal event code: MM01 Ref document number: 609111 Country of ref document: AT Kind code of ref document: T Effective date: 20160621 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: AT Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20160621 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: MT Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20140621 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: AL Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20130424 |