EP1941583A1 - Sleeve for an electric cable - Google Patents
Sleeve for an electric cableInfo
- Publication number
- EP1941583A1 EP1941583A1 EP06808227A EP06808227A EP1941583A1 EP 1941583 A1 EP1941583 A1 EP 1941583A1 EP 06808227 A EP06808227 A EP 06808227A EP 06808227 A EP06808227 A EP 06808227A EP 1941583 A1 EP1941583 A1 EP 1941583A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- gutter
- sleeve
- sleeve according
- gutters
- longitudinal edge
- 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.)
- Withdrawn
Links
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
- H01R4/70—Insulation of connections
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R11/00—Individual connecting elements providing two or more spaced connecting locations for conductive members which are, or may be, thereby interconnected, e.g. end pieces for wires or cables supported by the wire or cable and having means for facilitating electrical connection to some other wire, terminal, or conductive member, blocks of binding posts
- H01R11/11—End pieces or tapping pieces for wires, supported by the wire and for facilitating electrical connection to some other wire, terminal or conductive member
- H01R11/12—End pieces terminating in an eye, hook, or fork
Definitions
- the present invention relates to a sleeve for an electric cable.
- BACKGROUND ART Sleeves are frequently used in electrical installations, when they are made of insulating material, to isolate an electrical element from the external environment, in particular to protect the user from direct electrical contacts with this element, such as for example, an electric cable and / or a lug for crimped connection terminal at the end of this cable.
- French patent 2,841,048 already discloses insulating sleeves for lugs comprising two rigid gutter-shaped shells each connected longitudinally by a hinge to a rigid body and movable between an open position in which they are separated from each other. another and a closed position in which the free edges of the shells are against each other with the sleeve which then has a generally circular section.
- the body further has a ratchet bar on the lug while the gutters have mutual attachment means to be held edge to edge in the closed position around the lug.
- the aim of the invention is to provide a simple, economical and efficient sleeve, particularly as regards its method of attachment to the electric cable.
- each said channel is flexible in profile extends from a first longitudinal edge attached to said hinge to a second free longitudinal edge, admitted in the absence of mechanical stress a rest position where it is curved with said first longitudinal edge which is spaced from the second longitudinal edge while being adapted to be flexed from said rest position in the sense that said distance varies; said sleeve allowing an open position in which said gutters are apart from each other in the rest position, the concave surface of each said gutter looking at a space then empty, admitting a first stable closed position where said space d a first of said gutters receives the second gutter and admitting a second stable closed position where said space of the second gutter receives the first gutter, said sleeve being adapted to be deformed by folding of said hinge and bending in profile said gutters to move from said open position to the one or the other of said stable closed positions, said first gutter flexing with said distance which increases and
- the simple general shape of the nozzle and its ability to receive the cable indifferently in one or other of the gutters, allow easy and intuitive handling for the user.
- the partial overlap of the gutters ensures a particularly reliable maintenance of the sleeve around the cable, the sleeve according to the invention thus offering great safety of use.
- said gutters overlap on at least a quarter of the perimeter that then present said sleeve;
- each said gutter has a mirror image conformation of one another; and / or - each said gutter has an arcuate profile in said rest position with an angular extent between the first longitudinal edge and the second longitudinal edge greater than 180 °; and or - Each said gutter has in its rest position a circular arc profile of the same diameter over its entire length; or
- Each said gutter has in its rest position a profile in a circular arc of regularly variable diameter over its entire length; and / or each said gutter has a succession of ribs; and eventually
- each said channel is formed by a corrugated wall whose corrugations form said ribs;
- corrugations have a constant amplitude; or - said corrugations have a regularly variable amplitude; and or
- said hinge is an elongated flexible tongue
- said tongue has parallel longitudinal edges; or - said tongue has longitudinal edges inclined towards one another; and or
- said flexible tongue is made of the same material as said gutters and has a thickness different from the thickness of said gutters; and optionally - said thickness of said flexible tongue is smaller than the thickness of said gutters; and or
- said sleeve is made of an electrically insulating material
- said material is a molded thermoplastic; or - said material is an extruded thermoplastic; and eventually
- thermoplastic is a polyamide
- thermoplastic is a PVC.
- FIGS. 3 and 4 are respectively an elevational view of this sleeve taken from the side that is seen in front in Figure 2 and a plan view taken from above;
- Figures 5 and 6 are views similar to Figures 2 and 3 but for which the sleeve is shown in one of its closed positions;
- Figures 7 and 8 are views similar to Figures 5 and 6 but for which the sleeve is shown in the other of its closed positions;
- FIG. 9 is a perspective view of an electric cable provided at one end with a connection terminal
- FIG. 10 and 11 are two perspective views respectively illustrating how cooperates with this cable insulating sleeve in the open position and in the closed position;
- Figures 12 and 13 are two views similar to Figures 1 and 2 but illustrating a second embodiment of the insulating sleeve
- FIGS. 14 and 15 are respectively an elevational view of the sleeve taken from the side that is seen in the rear in Figure 13 and a plan view taken from above;
- FIGS. 16 and 17 are two perspective views taken from two different angles illustrating how this sleeve cooperates in the closed position with an electric cable;
- - Figure 18 is a view similar to Figure 15 but illustrating a third embodiment of the insulating sleeve;
- FIG. 19 is an enlarged view of a partial section of a wall of one of the gutters that comprises a fourth embodiment of the sleeve.
- the sleeve is made of insulating material for electrical cable insulation purposes.
- the sleeve 1 shown in Figures 1 to 8 comprises two gutters 2 and 3 and a hinge 4 between the two gutters.
- the sleeve is here made in one piece of electrically insulating material, here a molded thermoplastic of the family of polyamides.
- the sleeve has an open position shown in Figures 1 to 4 in which the gutters are spaced from each other and a first stable closed position shown in Figures 5 and 6 in which the channel 2 is nested in the gutter 3 and a second stable closed position, shown in Figures 7 and 8, similar to the first stable closed position but in which the channel 3 is nested in the gutter 2.
- the sleeve is shown in its open position, with the gutters 2 and 3 in the rest position in the absence of mechanical stress.
- the gutter 2 In its rest position, the gutter 2 has a profile in an arc. It extends from a first longitudinal edge 7 connected to the hinge 4 to a second free longitudinal edge 9 at a distance from the edge 7, this channel being delimited by a concave surface 15 inside the gutter and a convex surface 16 outside the gutter.
- the arcuate profile of the gutter 2 is of constant diameter and has an angular extent between the free edge 9 and the bound edge 7 greater than 180 °, approximately 315 ° in the example illustrated giving The gutter 2 a form C.
- the wall of the gutter 2 is of constant thickness and waved at a constant amplitude over its entire length, each corrugation consisting of a hollow 5 and a hump 6. These corrugations form a succession of ribs which give the gutter a ring shape.
- Gutter 2 is flexible in profile, that is to say it is adapted to deform in directions contained in planes transverse to the longitudinal direction of the sleeve to bend from its rest position in the direction where the distance between the edge 7 and the edge 9 varies and return to its rest position when it is no longer subject to mechanical stress.
- the gutter 3 is identical to the gutter 2 except that it has a mirror image conformation of the gutter 2 in the rest position.
- the channel 3 thus extends from a first longitudinal edge 8 connected to the hinge 4 to a second free longitudinal edge 10 at a distance from the edge 8, this channel being delimited by a concave surface 17 inside the gutter and a convex surface 18 outside the gutter.
- the hinge 4 is an elongated flexible tongue with parallel longitudinal edges and having a generally rectangular shape when the sleeve is in its open position.
- the flexible tongue is made of the same material as the gutters 2 and 3 but has a lower thickness than the gutters 2 and 3 ( Figure 3) to obtain the desired flexibility.
- the gutters 2 and 3 are apart from each other and the concave surfaces 15 and 17 of the gutters look at a gap then empty while the flexible tongue 4 is in a flat position.
- the space of the channel 2 remains empty and the concave surface 17 of the gutter 3 envelope then the convex surface 16 of the gutter 2 so that the gutters overlap on at least a quarter of the perimeter that the sleeve presents in the first closed position.
- the gutters overlap on about half a perimeter.
- the lug 11 (FIG. 9) comprises a flat portion 12 having a through hole for the rod of the connection terminal and a tubular portion 13 in which the bare end of an electric cable is received. 14, the portion 13 being crimped on this end by an intermediate section with hexagonal contour.
- the first step consists in fitting the lug 11 and the cable 14 in one or the other of the gutters of the sleeve in the open position. If the lug and the cable are nested in the gutter 2, the second step then consists in passing the sleeve into its first stable closed position (FIGS. 5 and 6) whereas if the lug and the cable are nested in the gutter 3, the second step is then to pass the sleeve into its second closed stable position ( Figures 7 and 8). In the example shown, the lug and the cable are nested in the trough 2.
- the operator comes to support the edges 7 and 9 of the channel 2 against the portion 13 of the lug 11 and the end portion of the cable 14.
- the gutter 2 bends and then passes under this mechanical action of its rest position at a working position where the edges 7 and 9 of the trough 2 deviate, the distance separating them increasing, to let the portion 13 of the lug 11 and the end portion of the cable 14 so that they occupy the space, initially empty, located inside the gutter 2, facing the concave surface 15.
- the edges 7 and 9 after having spread to pass the portion 13 of the pod and the end portion of the cable 14 come closer to each other (the distance that separates them decreases) by elastic return of the wall of the gutter 2 which then closes around the portion 13 of the lug 11 and the cable 14.
- the second step consists of similarly eject the gutter 2 in the gutter 3 to pass the sleeve 1 in its first stable closed position. For this the operator comes to contact the edge 10 of the channel 3 against the convex surface 16 of the channel 2 to slide along this surface.
- the reduced thickness of the tongue 4 provides a flexibility that allows it to be deformed to fold and form a hinge around which pivots the gutter 3 with respect to the gutter 2.
- the pressure exerted by the operator on the gutter 3 tends to move the gutter 3 from its rest position to a working position in which the longitudinal edges 8 and 10 deviate from one another, the distance separating them increasing, to let the gutter 2 so that it occupies the space, initially empty, located inside the gutter 3 facing the concave surface 17.
- the edges 8 and 10 after having moved apart to allow the gutter 2 to come closer to one another (the distance which separates them decreases) by elastic return of the wall the gutter 3 which then closes around the gutter 2.
- the concave surface 15 and a portion of the concave surface 17 look at the lug 11 and the end portion of the cable 14 while the other part the concave surface 17 looks at the convex surface 16 of the gutter 2.
- the troughs 5 of the trough 2 form sliders within which the troughs 5 of the trough 3 slide while the bumps 6 of the trough 3 form slides inside which slide the bumps 6 of the gutter 2.
- each gutter exerts on the other permanent mechanical stresses.
- the wall of the gutter 3 exerts a pressure against the wall of the gutter 2 (due to the elastic restoring forces generated by the interlocking) ensuring the stable holding of the gutter 2 around the pod and the cable.
- the partial overlap of the gutters reinforces the stable and permanent interlocking and prevents the untimely openings of this sleeve, for example during bending of the cable 14.
- the gutters of the sleeve also have flexibility in the longitudinal direction to match the shape of the cable when it is bent.
- FIGS. 11 and the cable 14 are made in contrast to the socket interlocking and closing operations described above.
- Another embodiment of the sleeve is shown in FIGS.
- Gutters 102 and 103 of this sleeve 101 are gutters each having, over their entire length, an arcuate profile with a generally constant angular extent and approximately equal to 315 ° and a regularly variable diameter to form, in the illustrated example, two gutters. of frustoconical general shape.
- the walls of the gutters 102 and 103 are of constant thickness and waved at a constant amplitude over their entire length, each corrugation consisting of a hollow 105 and a bump 106.
- Gutters 102 and 103 are connected by a flexible tongue 104 with parallel longitudinal edges.
- the frustoconical shape of the gutters makes it possible to extract the sleeve from the mold in a simple and rapid manner, avoiding the bumps 106 coming into abutment against the projecting portions of the mold during the extraction operation.
- the taper is determined according to the slope required for demolding and as a function of the amplitude of the corrugations.
- This sleeve cooperates with the cable 14 like the sleeve 1, the smaller diameter portions of the gutters being closest to the flat portion 12.
- the sleeve 201 is similar to the sleeve 101 except that the tongue with edges parallel 104 is replaced by a tongue 204 with edges inclined towards one another and thus having a generally trapezoidal shape when the sleeve 201 is in its rest position.
- the tab 204 makes it possible to make up the longitudinal offset due to the frustoconical shape of the gutters and thus facilitates the two-to-two adjustment of the bumps 206 of the gutter 202 with the corresponding bumps 206 of the gutter 203 and the depressions 205 of the gutter 202 with the corresponding hollows 205 of the gutter 203.
- the corrugations have a variable amplitude, the gap separating the bottom of a recess (305A, 305B, 305C) from the top of a boss (306A, 306B, 306C) varying regularly from one corrugation to another (degressively in the example shown) to also facilitate the extraction operation of the sleeve out of the manufacturing mold.
- the amplitude of the corrugations for the zone of the sleeve located in the deepest part of the mold the corrugation formed by the depression 305 C and the hump 306 C in the illustrated example
- the risks of abutting the sleeve against the portions protruding from the mold during extraction are limited.
- the ribs are ribs attached to the wall of the gutters or result from a local extra thickness of the material.
- the flexible tongue of the sleeve has a slightly convex shape at rest and / or has a greater thickness than the gutters.
- the molded sleeve belongs to the family of
- the sleeve is a single piece of extruded thermoplastic, for example polyamide or PVC.
- the two gutters are not mirror image of each other and have different dimensions from each other.
- the different sleeves described are also adapted to electrically isolate electrical elements other than lugs, stripped portions of electrical conductor or power supply bars for example.
- the sleeve is colored in order to identify and locate the cable that it surrounds, without necessarily being of insulating material.
Landscapes
- Insulating Bodies (AREA)
- Details Of Indoor Wiring (AREA)
- Mechanical Operated Clutches (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0510124A FR2891668B1 (en) | 2005-10-04 | 2005-10-04 | SLEEVE FOR ELECTRIC CABLE |
PCT/FR2006/002217 WO2007042634A1 (en) | 2005-10-04 | 2006-10-02 | Sleeve for an electric cable |
Publications (1)
Publication Number | Publication Date |
---|---|
EP1941583A1 true EP1941583A1 (en) | 2008-07-09 |
Family
ID=36648640
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP06808227A Withdrawn EP1941583A1 (en) | 2005-10-04 | 2006-10-02 | Sleeve for an electric cable |
Country Status (5)
Country | Link |
---|---|
US (1) | US20080257582A1 (en) |
EP (1) | EP1941583A1 (en) |
FR (1) | FR2891668B1 (en) |
RU (1) | RU2008117395A (en) |
WO (1) | WO2007042634A1 (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102009017817B4 (en) * | 2009-04-20 | 2015-03-12 | Phoenix Contact Gmbh & Co. Kg | Electrical connection terminal |
US9608692B2 (en) | 2015-06-11 | 2017-03-28 | At&T Intellectual Property I, L.P. | Repeater and methods for use therewith |
JP7239546B2 (en) * | 2020-11-30 | 2023-03-14 | 矢崎総業株式会社 | Outer materials for electric wires and wire harnesses |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4470622A (en) * | 1978-02-06 | 1984-09-11 | Thyssen-Bornemisza Inc. | Flexible conduit system |
JPS5542822A (en) * | 1978-09-20 | 1980-03-26 | Nippon Telegr & Teleph Corp <Ntt> | Heat-shrinkable tube of longitudinally split type |
US5360584A (en) * | 1986-06-23 | 1994-11-01 | Raychem Corporation | Method of forming a wrap-around heat-recoverable article |
PT750378E (en) * | 1995-06-21 | 2000-06-30 | Raymond A & Cie | PROTECTIVE TUBULAR SHELF TO WRAP CABLE BEAMS |
US5804770A (en) * | 1995-09-19 | 1998-09-08 | Sumitomo Wiring Systems, Ltd. | Cover equipped electrical connection device and a cover for an electrical connection device |
US6410848B1 (en) * | 1999-04-30 | 2002-06-25 | The Zippertubing Company | Heat shrinkable side entry cable jacket |
FR2841048B1 (en) * | 2002-06-13 | 2004-08-27 | Legrand Sa | INSULATING END PIECE FOR A TERMINAL FOR CONNECTING AN ELECTRICAL CABLE TO A TERMINAL |
EP1463177A1 (en) * | 2003-03-28 | 2004-09-29 | Iprotex GmbH & Co. KG | Method for producing a braided, knitted or woven tube |
-
2005
- 2005-10-04 FR FR0510124A patent/FR2891668B1/en not_active Expired - Fee Related
-
2006
- 2006-10-02 US US12/089,205 patent/US20080257582A1/en not_active Abandoned
- 2006-10-02 EP EP06808227A patent/EP1941583A1/en not_active Withdrawn
- 2006-10-02 RU RU2008117395/09A patent/RU2008117395A/en not_active Application Discontinuation
- 2006-10-02 WO PCT/FR2006/002217 patent/WO2007042634A1/en active Application Filing
Non-Patent Citations (1)
Title |
---|
See references of WO2007042634A1 * |
Also Published As
Publication number | Publication date |
---|---|
FR2891668A1 (en) | 2007-04-06 |
FR2891668B1 (en) | 2007-12-21 |
WO2007042634A1 (en) | 2007-04-19 |
US20080257582A1 (en) | 2008-10-23 |
RU2008117395A (en) | 2009-11-10 |
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Legal Events
Date | Code | Title | Description |
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PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
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17P | Request for examination filed |
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RIC1 | Information provided on ipc code assigned before grant |
Ipc: H02G 15/18 20060101ALN20090319BHEP Ipc: H01R 4/70 20060101AFI20090319BHEP |
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GRAP | Despatch of communication of intention to grant a patent |
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GRAS | Grant fee paid |
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17Q | First examination report despatched |
Effective date: 20090911 |
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STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
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18D | Application deemed to be withdrawn |
Effective date: 20100122 |