WO2007121775A1 - Bride d'ancrage d'au moins un assemblage de conducteurs electriques - Google Patents

Bride d'ancrage d'au moins un assemblage de conducteurs electriques Download PDF

Info

Publication number
WO2007121775A1
WO2007121775A1 PCT/EP2006/005313 EP2006005313W WO2007121775A1 WO 2007121775 A1 WO2007121775 A1 WO 2007121775A1 EP 2006005313 W EP2006005313 W EP 2006005313W WO 2007121775 A1 WO2007121775 A1 WO 2007121775A1
Authority
WO
WIPO (PCT)
Prior art keywords
guide piece
connection portion
anchoring clamp
lock
hook
Prior art date
Application number
PCT/EP2006/005313
Other languages
English (en)
Inventor
Xavier Allaire
Jean-Luc Couvert
Original Assignee
Saae Malico Connectors International En Abrege Sm-Ci
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Saae Malico Connectors International En Abrege Sm-Ci filed Critical Saae Malico Connectors International En Abrege Sm-Ci
Priority to PCT/EP2006/005313 priority Critical patent/WO2007121775A1/fr
Publication of WO2007121775A1 publication Critical patent/WO2007121775A1/fr

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G7/00—Overhead installations of electric lines or cables
    • H02G7/05—Suspension arrangements or devices for electric cables or lines
    • H02G7/053—Suspension clamps and clips for electric overhead lines not suspended to a supporting wire
    • H02G7/056—Dead-end clamps

Definitions

  • Anchoring clamp for at least one electrical conductor assembly
  • the present invention relates to an anchoring clamp for at least one electrical conductor assembly, of the type comprising:
  • a guide piece having a longitudinal axis, said guide piece defining a tapered recess extending along said longitudinal axis for accommodating the at least one conductor assembly;
  • a wedge member accommodated in said recess, and adapted to be wedged in said recess by a longitudinal force exerted in a first direction on said at least one conductor assembly; and - a hook member for hanging the guide piece to a support, said hook member comprising a hook.
  • An object of the invention is to provide an anchoring clamp of this type which is cheap to manufacture and nevertheless capable of withstanding longitudinal forces exerted on the cable assembly. This problem is solved by an anchoring clamp of the aforementioned type, wherein the hook member is made of plastic material.
  • anchoring clamp may comprise any of the features claims 2-14, individually or in any feasible combination.
  • FIG. 1 is a perspective view of an anchoring clamp according to a first embodiment of the invention
  • FIG. 1 is a top view of the anchoring clamp of Figure 1 ;
  • FIG. 3 and 4 are underside views of an anchoring clamp according to a second embodiment of the invention;
  • FIG. 5 is a partial underside view of an anchoring clamp according to a third embodiment of the invention.
  • FIG. 8 is an equivalent view of Figure 5 illustrating a fourh embodiment of the invention.
  • the clamp 2 shown on Figure 1 comprises a guide piece 4, a wedge member 6 and a hook member 8.
  • the clamp 2 has a general longitudinal axis X-X with a front direction A and an opposite rear direction B.
  • the guide piece 4 is a molded plastic part extending along axis X-X and having a U-shaped transverse section, with a transverse base 8 and two lateral wings 10.
  • Each wing 10 has at its free end a flange 12 bent toward the other wings 10.
  • Each wing 10 has an inner face 14 confronting the other wing 10 and tapering towards axis X-X in direction A.
  • the faces 14 define between them a tapered recess 16.
  • the half-angle of taper a ( Figure 2) is small, e.g. 10°.
  • the recess 16 is opened at the longitudinal ends of the guide piece 4 and between the flanges 12.
  • the guide piece 4 has on its outer surface 18 transverse reinforcing ribs 20 distributed along axis X-X.
  • the wedge member 6 is adapted to be inserted along axis X-X in recess 16 towards direction A.
  • the wedge member 6 is for example made of plastic material, and is a wedge-like block tapering in direction A and comprising opposed lateral faces 22 each confronting a respective face 14 when the wedge member 6 is inserted in the recess 16.
  • Each face 22 has two parallel longitudinal grooves 24 each for accommodating a conductor assembly.
  • the hook member 8 comprises a hook 26 and a connection portion 28 connecting the hook 26 to the guide piece 4.
  • insulated electrical conductors 30 of a har- ness are disposed in the recess 16 and the wedge member 6 is inserted in the recess 16 such that each conductor 30 is received in one of the grooves 24 (figure 1 ) and clamped between the wedge member 6 and one of the wings 10.
  • any longitudinal force exerted towards direction A on one of the con- ductor assemblies 30 biases the wedge member 6 toward direction A relative to the guide piece 4 and increases the clamping force.
  • the ribs 20 prevent the wings 10 from moving away one from the other, due to the transversal forces possessedd on the wings 10 by the wedge member 6.
  • the hook 26 is used for example to hang the clamp 2 on a support on an electrical pole or tower.
  • the hook member 8 is molded in one piece of plastic material with the guide piece 4.
  • the hook member 8, including the hook 26 and the connection portion 28, and the guide piece 4 are thus of unitary construction of a single piece of material.
  • the clamp 2 is manufactured at low cost, and is still able to withstand high forces, since the guide piece 4 and the hook member 8 can be made very resistant by providing reinforcing members, such as reinforcing ribs, and sufficient thickness.
  • the plastic material may be optionally fiber- reinforced.
  • the hook member 8 of plastic material is electrically insulated, thus lowering the manufacturing costs as compared to a metallic hook which requires the costly operation of covering it by an outer layer of electrically insulating material.
  • the hook member 8 is a part different from the guide piece 4, i.e. the hook member 8 can be moved relatively to the guide piece 4.
  • the guide piece 4 comprises on an underside of surface 18 a housing 32 extending along axis X-X and opened at its both longitudinal ends.
  • connection portion 28 is elongated along axis X-X and has auxil- iary detent hooks 33, e.g. two in number, at the front free longitudinal end 34 of the connection portion 28 opposed to the hook 26.
  • Each auxiliary hook 33 comprises a longitudinally extending cantilevered element 35, which is transversely deflectable, carrying at its free end a radially outwardly projecting retaining prong 36.
  • Each prong 36 has an inclined front face and a rear face perpendicular to axis X-X.
  • connection portion 28 is inserted frontward in a rear end of the housing 32 ( Figure 3).
  • the front faces of the prongs 36 contact the wall of the housing 32, whereby the auxiliary hooks 33 resil- iently deflect radially inwardly thus allowing insertion of the connection portion 28.
  • the connection portion 28 is inserted until the auxiliary hooks 33 reach the front end of the housing 32 ( Figure 4), whereby the auxiliary hooks 33 outwardly detent and longitudinally snap lock the connection portion 28 to the guide piece 4.
  • auxiliary hooks 33 prevent the guide piece 4 from moving in direction A relative to the hook member 8.
  • connection portion 28 and the housing 32 are preferably shaped such that the hook member 8 assembled to the guide piece 4 is rotatable about axis X-X relative to the guide piece 4. This prevents torsion stress of the hook member 8, thus increasing the longitudinal forces than can be withstand by the hook member 8.
  • the hook member 8 is molded in one piece of plastic material, whereby the hook member 8 is manufactured at low cost, despite the provi- sion of the auxiliary hooks 33.
  • the hook member 8 of plastic material is electrically insulated, thus lowering the manufacturing cost as compared to a metallic hook which would require to be covered by an outer layer of electrically insulating material.
  • the hook member 8 is provided with a ring 38 molded in one piece with the hook member 8.
  • the ring 38 is used to remotely manipulate the clamp 2 for example with a rod.
  • the clamp 2 shown in Figure 5 differs from the clamp of Figures 3 and 4 in that the hook member 8 is adjustable in position along axis X-X.
  • connection portion 28 is provided with groups 39 of radially outwardly projecting teeth 40.
  • the teeth 40 of each group 39 are in the same plan perpendicular to axis X-X.
  • the groups 39 are longitudinally regularly distributed along the half of the connection portion 28 adjacent the end 34.
  • Each group 39 comprises for example four teeth 40 at 90° around the connection portion 28.
  • Each tooth 40 has an inclined front face 44 facing radially outwardly and a rear face 46 perpendicular to axis X-X.
  • the clamp 2 comprises a pair of lock members 50 for cooperating with the teeth 40 for selectively locking the hook member 8 relative to the guide piece 4 in several discrete positions to adjust the longitudinal position of the hook 26 relative to the guide piece 4.
  • Each lock member 50 is mounted on the guide piece 4 and is movable transversely along an axis Y-Y perpendicular to axis X-X between a lock position ( Figure 6) wherein the lock member 50 prevents a movement of the hook member 8 relative to the guide piece 4 along axis X-X in direction B, and an unlocked position ( Figure 7) wherein the lock member 50 allows longitudinal movement of the hook member 8 relative to the guide piece 4.
  • the lock members 50 are identical and placed head-to-foot. As illustrated on Figures 6 and 7 showing one of the lock members
  • each lock member 50 comprises a plate 52 provided with an opening 54 elongated along axis Y-Y having a first region 56 and a second region 58 of smaller dimension than the first region 56 along an axis Z-Z perpendicular to axis Y-Y and X-X.
  • Each lock member 50 comprises a resilient spring member 60 abutting a wall 62 of a recess 64 of the guide piece 4 accommodating the lock member 50.
  • Each recess 64 extends along axis Y-Y and intersects the housing 32.
  • Each lock member 50 received in the corresponding recess 64 is fixed along axis X-X relative to the guide piece 4.
  • connection portion 28 extends through the second region 58, whereby, in case of a rearward longitudinal solicitation of the hook member relative to the guide piece, the rear faces of at least some of the teeth 40 of the group immediately in front of the lock member 50 abut the rim 66 of the second region 58. The hook member 8 is thus prevented from moving longitudinally rearward relative to the guide piece 4.
  • the lock members 50 are longitudinally offset, whereby the two lock members 50 cooperate with different groups of teeth 40 in their locked positions.
  • each lock member 50 is off-set relative to the locked position along axis Y-Y such that the connection portion 28 passes through the first region 56 of the opening 54. The first region portion 28 through the opening 54.
  • the hook member 8 is ratable about axis X-X in the unlocked position as well as in the locked position.
  • Each lock member 50 is provided with a digit portion 70 for pushing it toward its unlocked position against the resilient member 60.
  • the lock members 50 placed head-to-foot are moved towards each other to place them in the unlocked position, and pushed away one from the other in the locked position.
  • the font faces of the teeth 40 will push the lock members 50 toward their unlocked position ( Figure 7), thus allowing an easy adjustment of the longitudinal position of the hook member 8.
  • the lock members 50 and the teeth 40 thus form unidirectional locking means locking the hook member 8 only in direction B, and allowing movement along direction A.
  • the lock members 50 Upon assembly of the clamp 2, the lock members 50 are first inserted in their respective housings 64 and placed in unlocked position, then, the hook connection portion 28 is inserted through the housing 32 until the auxiliary hooks 33 detent. Once the connection portion 28 is inserted through the lock members 50, the lock members 50 are held in place by the connection portion 28. The auxiliary hooks 33 prevent complete removing of the hook member 8 from the guide piece 4.
  • the alternative embodiment of figure 8 differs from the embodiment of figures 5-7 in that the spring member 60 does not abut against a wall of the guide piece 4, but on the other one of lock member 50, namely the digit por- tion 70 of the other one of the lock member.
  • Each lock member 50 is pushed by ist spring member in the locked position relative to the other lock member 50.

Landscapes

  • Clamps And Clips (AREA)

Abstract

La bride (2) de l'invention comprend : une pièce guide (4) dotée d'un axe longitudinal (X-X), ladite pièce guide (4) définissant un retrait oblique s'étendant le long dudit axe longitudinal (X-X) pour recevoir le ou les assemblages de conducteurs (30); un élément de cale (6) entrant dans ledit retrait, et adapté pour être calé dans ledit retrait par une force longitudinale exercée dans une première direction; un élément de crochet (8) pour suspendre la pièce guide (4) sur un support, ledit élément de crochet (8) comprenant un crochet (26). Selon un aspect de l'invention, l'élément de crochet (8) est moulé sous forme d'une pièce de matière plastique.
PCT/EP2006/005313 2006-04-26 2006-04-26 Bride d'ancrage d'au moins un assemblage de conducteurs electriques WO2007121775A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/EP2006/005313 WO2007121775A1 (fr) 2006-04-26 2006-04-26 Bride d'ancrage d'au moins un assemblage de conducteurs electriques

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP2006/005313 WO2007121775A1 (fr) 2006-04-26 2006-04-26 Bride d'ancrage d'au moins un assemblage de conducteurs electriques

Publications (1)

Publication Number Publication Date
WO2007121775A1 true WO2007121775A1 (fr) 2007-11-01

Family

ID=37527043

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2006/005313 WO2007121775A1 (fr) 2006-04-26 2006-04-26 Bride d'ancrage d'au moins un assemblage de conducteurs electriques

Country Status (1)

Country Link
WO (1) WO2007121775A1 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2133493A5 (fr) * 1971-04-15 1972-12-01 Soussy Adrien
FR2145425A1 (fr) * 1971-07-15 1973-02-23 Productions Indls Atel
NL7415856A (en) * 1967-10-17 1975-03-27 Pasbrig Max Releasable self-acting cable clamp - comprises sleeve with longitudinal and inclined bores, spring-loaded clamp and release latch
FR2533080A1 (fr) * 1982-09-14 1984-03-16 Sicame Sa Pince d'ancrage a coincement conique, notamment pour conducteurs en cables isoles

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL7415856A (en) * 1967-10-17 1975-03-27 Pasbrig Max Releasable self-acting cable clamp - comprises sleeve with longitudinal and inclined bores, spring-loaded clamp and release latch
FR2133493A5 (fr) * 1971-04-15 1972-12-01 Soussy Adrien
FR2145425A1 (fr) * 1971-07-15 1973-02-23 Productions Indls Atel
FR2533080A1 (fr) * 1982-09-14 1984-03-16 Sicame Sa Pince d'ancrage a coincement conique, notamment pour conducteurs en cables isoles

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