FR2593572A1 - Screw with an insulated head, especially for electrical applications - Google Patents

Screw with an insulated head, especially for electrical applications Download PDF

Info

Publication number
FR2593572A1
FR2593572A1 FR8601104A FR8601104A FR2593572A1 FR 2593572 A1 FR2593572 A1 FR 2593572A1 FR 8601104 A FR8601104 A FR 8601104A FR 8601104 A FR8601104 A FR 8601104A FR 2593572 A1 FR2593572 A1 FR 2593572A1
Authority
FR
France
Prior art keywords
head
transmission member
threaded rod
screw
engaged
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
Application number
FR8601104A
Other languages
French (fr)
Other versions
FR2593572B1 (en
Inventor
Andre Beaurain
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
VERLANT BEAURAIN
Original Assignee
VERLANT BEAURAIN
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 VERLANT BEAURAIN filed Critical VERLANT BEAURAIN
Priority to FR8601104A priority Critical patent/FR2593572B1/en
Priority to FR8617135A priority patent/FR2607881A2/en
Publication of FR2593572A1 publication Critical patent/FR2593572A1/en
Application granted granted Critical
Publication of FR2593572B1 publication Critical patent/FR2593572B1/en
Expired legal-status Critical Current

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
    • H01R4/28—Clamped connections, spring connections
    • H01R4/30—Clamped connections, spring connections utilising a screw or nut clamping member
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B33/00—Features common to bolt and nut
    • F16B33/004—Sealing; Insulation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B35/00—Screw-bolts; Stay-bolts; Screw-threaded studs; Screws; Set screws
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B31/00—Screwed connections specially modified in view of tensile load; Break-bolts
    • F16B31/02—Screwed connections specially modified in view of tensile load; Break-bolts for indicating the attainment of a particular tensile load or limiting tensile load
    • F16B31/021—Screwed connections specially modified in view of tensile load; Break-bolts for indicating the attainment of a particular tensile load or limiting tensile load by means of a frangible part

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Connections By Means Of Piercing Elements, Nuts, Or Screws (AREA)

Abstract

Screw with an insulated head, characterised in that it comprises three parts assembled to one another so as to constitute a single-piece component: a head 10 on which the screwing torque is exerted; an intermediate component 12 called a transmission member, produced from an insulating material and interposed between the said head and a threaded shank 14 constituting the third component, the said head and the said threaded shank being engaged with the transmission member 12 so that the screwing torque exerted on the head is transmitted to the threaded shank by the said transmission member, which electrically insulates the head 10 from the shank 14.

Description

La présente invention est relative à une vis à tête isolée. Dans certaines applications, et notamment dans des appareillages électriques du type connecteur de dérivation pour lignes électriques sous tension, on est amené à effectuer des opérations de serrage de conducteurs sous tension dans des pièces conductrices. The present invention relates to an insulated head screw. In certain applications, and in particular in electrical equipment of the branch connector type for live electrical lines, it is necessary to carry out operations for clamping live conductors in conductive parts.

Dans ce but, on utilise généralement des vis classiques, en employant un outillage isolant, la partie de la vis accessible de l'extérieur étant ensuite protégée à l'aide de tout moyen isolant approprié. For this purpose, conventional screws are generally used, using an insulating tool, the part of the screw accessible from the outside then being protected using any suitable insulating means.

Cette technique connues'avère compliquée, peu fiable et coûteuse, notamment en raison du fait que le montage, le serrage et la protection de la vis nécessitent un temps assez long. This known technique turns out to be complicated, unreliable and expensive, in particular due to the fact that the mounting, tightening and protection of the screw require a fairly long time.

En conséquence, cette invention se propose d'apporter une vis isolante peu coûteuse, facile à réaliser et à mettre en oeuvre. Consequently, this invention proposes to provide an inexpensive insulating screw, easy to produce and to implement.

En conséquence, cette invention a pour objet une vis comprenant trois parties assemblées les unes sur les autres de manière à constituer une pièce mono bloc : une tête sur laquelle s'exerce le couple de vissage une une pièce intermé- diaire, appelée organe de transmission, réalisée en matériau isolant et interpo sée entre ladite tête et une tige filetée constituant la troisième partie, ladite tête et ladite tige filetée étant en prise avec cet organe de transmission, de manière que le couple exercé sur la tête assure le vissage de la tige filetée, l'organe de transmission isolant ladite tête de la tige filetée. Consequently, the subject of this invention is a screw comprising three parts assembled one on top of the other so as to constitute a single block part: a head on which the screwing torque is exerted, an intermediate part, called a transmission member. , made of insulating material and interposed between said head and a threaded rod constituting the third part, said head and said threaded rod being engaged with this transmission member, so that the torque exerted on the head ensures the screwing of the rod threaded, the transmission member isolating said head from the threaded rod.

Selon une caractéristique de cette invention, la tête de ladite vis qui peut être ou non à limiteur de couple vient s'encastrer dans un logement prévu à cet effet dans la partie supérieure de l'organe de transmission. According to a characteristic of this invention, the head of said screw which may or may not be a torque limiter is fitted into a housing provided for this purpose in the upper part of the transmission member.

Selon une autre caractéristique de cette invention, la partie supérieure de la tige filetée en prise dans 11 organe de transmission est conformée dans l'exemple représenté selon un tenon engagé dans un logement en forme de mortaise pratiqué dans ledit organe de transmission. According to another characteristic of this invention, the upper part of the threaded rod engaged in the transmission member is shaped in the example shown according to a pin engaged in a mortise-shaped housing formed in said transmission member.

D'autres caractéristiques et avantages de cette invention ressortiront de la description faite ci-après en référence au dessin annexé, qui en illustre un exemple de réalisation dépourvu de tout caractère limitatif. Sur le dessin
- la figure 1 est une vue en élévation d'une vis selon cette invention
- la figure 2 est une vue selon la figure 1, l'organe de transmission étant représenté en coupe
- la figure 3 est une vue similaire à la figure 2, mais avec un plan de coupe de l'ensemble décalé de 90" ; et,
- les figures 4 à 6 sont des vues partielles qui illustrent des variantes de l'invention.Other characteristics and advantages of this invention will emerge from the description given below with reference to the appended drawing, which illustrates an embodiment thereof devoid of any limiting character. On the drawing
- Figure 1 is an elevational view of a screw according to this invention
- Figure 2 is a view according to Figure 1, the transmission member being shown in section
FIG. 3 is a view similar to FIG. 2, but with a section plane of the assembly offset by 90 "; and,
- Figures 4 to 6 are partial views which illustrate variants of the invention.

Comme on le voit sur le dessin, la vis isolante selon l'invention com prend essentiellement trois parties
- une tête 10, sur laquelle s'exerce l'effort ou le couple de vissage ; la partie supérieure de cette tête peut être hexagonale, carrée, en anneaux, fendue, etc... (figures 4 à 6)
- une partie intermédiaire en un matériau isolant 12, appelé organe de transmission ; et,
- une tige filetée 14, montée sur l'organe de transmission isolant 12 de manière que le couple de vissage exercé sur la tête 10 soit transmis à la tige filetée 14 par l'organe de transmission 12.As can be seen in the drawing, the insulating screw according to the invention comprises essentially three parts
- A head 10, on which is exerted the force or the screwing torque; the upper part of this head can be hexagonal, square, in rings, split, etc ... (Figures 4 to 6)
- An intermediate part made of an insulating material 12, called a transmission member; and,
- a threaded rod 14, mounted on the insulating transmission member 12 so that the screwing torque exerted on the head 10 is transmitted to the threaded rod 14 by the transmission member 12.

Ces trois parties 10, 12 et 14 sont assemblées de manière à constituer une pièce monobloc, dans laquelle l'organe de transmission 12 isole électriquement la tête 10 de la tige filetée 14. These three parts 10, 12 and 14 are assembled so as to constitute a single piece, in which the transmission member 12 electrically isolates the head 10 from the threaded rod 14.

Dans l'exemple de réalisation illustré par les dessins, la tête 10 est réalisée sous la forme hexagonale et à limiteur de couple dont la partie inférieure, à six pans par exemple, vient s'encastrer dans un logement d'entraineur 12 (voir les figures 2 et 3). In the exemplary embodiment illustrated by the drawings, the head 10 is produced in the hexagonal shape and with a torque limiter, the lower part of which, for example with a hexagon, comes to be embedded in a coach housing 12 (see the Figures 2 and 3).

La partie supérieure de la tige filetée 14 est en prise dans l'organe de transmission isolant 12, par exemple par l'intermédiaire d'un tenon 16, engagé dans un logement 18 en forme de mortaise de l'organe de transmission. The upper part of the threaded rod 14 is engaged in the insulating transmission member 12, for example by means of a stud 16, engaged in a housing 18 in the form of a mortise of the transmission member.

L'examen du dessin montre que la tête 10 et la tige filetée 14 sont encastrées dans l'organe de transmission 12, tout en étant isolées l'une de l'autre par la cloison 20 de l'organe de transmission, et ces deux pièces sont en prise avec l'organe de transmission de telle manière que tout couple de vissage exercé sur la tête 10 soit transmis à la tige filetée 14 par l'organe de transmission isolant 12. Examination of the drawing shows that the head 10 and the threaded rod 14 are embedded in the transmission member 12, while being isolated from each other by the partition 20 of the transmission member, and these two parts are engaged with the transmission member so that any screwing torque exerted on the head 10 is transmitted to the threaded rod 14 by the insulating transmission member 12.

Il ressort clairement, de la description qui précède, que l'invention apporte une vis isolante facile à réaliser et à mettre en oeuvre, très sûre et fiable, notamment pour des applications dans le domaine de la connexion électrique. It is clear from the foregoing description that the invention provides an insulating screw which is easy to produce and implement, very safe and reliable, in particular for applications in the field of electrical connection.

Il demeure bien entendu que cette invention n'est pas limitée à l'exemple de réalisation décrit et représenté, mais qu'elle englobe toutes les variantes.  It remains to be understood that this invention is not limited to the embodiment described and shown, but that it encompasses all variants.

Claims (3)

REVENDICATIONS 1 - Vis à tête isolée caractérisée en ce qu'elle comporte trois parties assemblées les unes aux autres afin de constituer une pièce monobloc : une tête (10) sur laquelle s'exerce le couple de vissage ; une pièce intermédiaire (12) appelée organe de transmission, réalisée en matériau isolant et interposée entre ladite tête et une tige filetée (14) constituant la troisième partie, ladite tête et ladite tige filetée étant en prise avec l'organe de transmission (12) de manière que le couple de vissage exercé sur la tête soit transmis à la tige filetée par ledit organe de transmission, lequel isole électriquement la tête (10) de la tige (14). 1 - Insulated head screw characterized in that it comprises three parts assembled to each other in order to constitute a single piece: a head (10) on which the tightening torque is exerted; an intermediate piece (12) called transmission member, made of insulating material and interposed between said head and a threaded rod (14) constituting the third part, said head and said threaded rod being engaged with the transmission member (12) so that the screwing torque exerted on the head is transmitted to the threaded rod by said transmission member, which electrically isolates the head (10) from the rod (14). 2 - Vis isolante selon la revendication 1, caractérisée en ce que la tête (10) qui peut être éventuellement pourvue d'un limiteur de couple vient stencas- trer dans un logement prévu à cet effet dans la partie supérieure de l'organe de transmission. 2 - Insulating screw according to claim 1, characterized in that the head (10) which can optionally be provided with a torque limiter comes to settle in a housing provided for this purpose in the upper part of the transmission member . 3 - Vis isolante selon l'une des revendications précédentes caractérisée en ce que la partie supérieure de la tige filetée (14), en prise dans l'organe de transmission (12) est conformée selon un tenon (16) encastré dans un logement (18) en forme de mortaise pratiqué dans ledit organe de transmission.  3 - Insulating screw according to one of the preceding claims characterized in that the upper part of the threaded rod (14), engaged in the transmission member (12) is shaped according to a stud (16) embedded in a housing ( 18) in the form of a mortise formed in said transmission member.
FR8601104A 1986-01-27 1986-01-27 INSULATED HEAD SCREWS, ESPECIALLY FOR ELECTRIC APPLICATIONS Expired FR2593572B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
FR8601104A FR2593572B1 (en) 1986-01-27 1986-01-27 INSULATED HEAD SCREWS, ESPECIALLY FOR ELECTRIC APPLICATIONS
FR8617135A FR2607881A2 (en) 1986-01-27 1986-12-08 Screw with an insulated head particularly for electrical applications

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8601104A FR2593572B1 (en) 1986-01-27 1986-01-27 INSULATED HEAD SCREWS, ESPECIALLY FOR ELECTRIC APPLICATIONS

Publications (2)

Publication Number Publication Date
FR2593572A1 true FR2593572A1 (en) 1987-07-31
FR2593572B1 FR2593572B1 (en) 1988-04-29

Family

ID=9331510

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8601104A Expired FR2593572B1 (en) 1986-01-27 1986-01-27 INSULATED HEAD SCREWS, ESPECIALLY FOR ELECTRIC APPLICATIONS

Country Status (1)

Country Link
FR (1) FR2593572B1 (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2791404A1 (en) * 1999-03-26 2000-09-29 Mecelec Ind Electrical connection calibrated force locking screw having screw thread profiled sections and inner ring with protrusion outer head nut section driven/set force ceasing.
EP1367269A1 (en) 2002-05-29 2003-12-03 Schneider Electric Industries SAS Separable mounting device including a screw for an electrical apparatus
CN102979800A (en) * 2011-09-07 2013-03-20 祁文军 Insulation bolt
EP3222860A1 (en) * 2016-03-22 2017-09-27 Arcus Elektrotechnik Alois Schiffmann GmbH Shear screw for working under voltage
FR3097911A1 (en) 2019-06-28 2021-01-01 Upeca Electrically insulated screw system and its manufacturing process
US11193522B2 (en) 2016-11-30 2021-12-07 3M Innovative Properties Company Shear bolt

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB614602A (en) * 1946-07-17 1948-12-17 English Electric Co Ltd Improvements in terminal clamping screws
GB665544A (en) * 1947-12-15 1952-01-23 Gordon Spencer Marston Improvements in or relating to insulated nuts
US3561317A (en) * 1969-04-04 1971-02-09 Anaconda American Brass Co Self-indicating clamping bolt

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB614602A (en) * 1946-07-17 1948-12-17 English Electric Co Ltd Improvements in terminal clamping screws
GB665544A (en) * 1947-12-15 1952-01-23 Gordon Spencer Marston Improvements in or relating to insulated nuts
US3561317A (en) * 1969-04-04 1971-02-09 Anaconda American Brass Co Self-indicating clamping bolt

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2791404A1 (en) * 1999-03-26 2000-09-29 Mecelec Ind Electrical connection calibrated force locking screw having screw thread profiled sections and inner ring with protrusion outer head nut section driven/set force ceasing.
EP1367269A1 (en) 2002-05-29 2003-12-03 Schneider Electric Industries SAS Separable mounting device including a screw for an electrical apparatus
FR2840373A1 (en) 2002-05-29 2003-12-05 Schneider Electric Ind Sas SECABLE SCREW MOUNTING DEVICE FOR ELECTRICAL EQUIPMENT
CN102979800A (en) * 2011-09-07 2013-03-20 祁文军 Insulation bolt
EP3222860A1 (en) * 2016-03-22 2017-09-27 Arcus Elektrotechnik Alois Schiffmann GmbH Shear screw for working under voltage
DE102016105310B4 (en) * 2016-03-22 2020-09-24 Arcus Elektrotechnik Alois Schiffmann Gmbh SHEAR SCREW FOR WORKING UNDER VOLTAGE
US11193522B2 (en) 2016-11-30 2021-12-07 3M Innovative Properties Company Shear bolt
FR3097911A1 (en) 2019-06-28 2021-01-01 Upeca Electrically insulated screw system and its manufacturing process

Also Published As

Publication number Publication date
FR2593572B1 (en) 1988-04-29

Similar Documents

Publication Publication Date Title
FR2508716A1 (en) ELECTRODE ADAPTER
FR2593572A1 (en) Screw with an insulated head, especially for electrical applications
FR2693842A1 (en) Device for fastening electric cables equipped with spade terminals - secures cable spade terminals by screw and nut which are mounted in casing with partitions to prevent pivoting of casing around nut and turning of terminals around screw
FR2596209A1 (en) MONOBLOCK BYPASS CONNECTOR, ESPECIALLY FOR LIVE POWER LINES
FR2808618A1 (en) CIRCUIT BREAKER COMPRISING, IN AN ENCLOSURE FILLED WITH A DIELECTRIC GAS UNDER PRESSURE, A MOBILE ASSEMBLY
EP0308307B1 (en) Separable connection device between a conductive pin and at least one connection wire
FR2810804A1 (en) Sealed connection pressure operated flexible electrical contact having moving contact head with sealed tubular unit both ends open guidance well connected and part covering feed cable connection wire.
FR2607881A2 (en) Screw with an insulated head particularly for electrical applications
CA1209654A (en) Seal on wiring inlet for canned semi-conductor package
EP0076720A1 (en) Terminal post for conducting cables to an electrical apparatus
FR2638294A1 (en) MULTIPOLAR CONNECTABLE CONNECTOR
EP0763871B1 (en) Electrical installation apparatus connecting terminal
FR2521355A1 (en) Electrical connection for joining copper and aluminium conductors - has copper washers and an interconnecting sleeve which are crushed onto an aluminium terminal lug
FR3109477A1 (en) Electrical interconnection device for earthing electrical conductors
FR2582735A1 (en) Protected ignition distributor for internal combustion engines
FR2738412A1 (en) ELECTRIC MACHINE SUCH AS AN AUTOMOTIVE ALTERNATOR
FR2627640A1 (en) MULTIPLE ELECTRICAL CONNECTOR
FR2709024A1 (en) Female electrical contact
FR2522202A1 (en) Auto-centring screw clamp for cable termination - has ridged V-groove bosses which grip cables of large or small dia without cutting or pinching them at edge of jaws
BE641306A (en) Device for attaching the knife to the vertical drive shaft of a motor lawn mower
EP3866270A1 (en) Magnetic connector and group of magnetic connectors
CH210270A (en) Bi-polar inductor for magneto-electric generator.
CH353230A (en) Hydraulic valve
CH238217A (en) Cable ties.
CH174179A (en) Clamping device for electrical conductors.

Legal Events

Date Code Title Description
ST Notification of lapse