FR2556124A1 - Covering element for uncovered terminals of a switch - Google Patents

Covering element for uncovered terminals of a switch Download PDF

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Publication number
FR2556124A1
FR2556124A1 FR8417202A FR8417202A FR2556124A1 FR 2556124 A1 FR2556124 A1 FR 2556124A1 FR 8417202 A FR8417202 A FR 8417202A FR 8417202 A FR8417202 A FR 8417202A FR 2556124 A1 FR2556124 A1 FR 2556124A1
Authority
FR
France
Prior art keywords
terminal
screw
covering element
terminal screw
insulating material
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.)
Pending
Application number
FR8417202A
Other languages
French (fr)
Inventor
Gunter Boker
Marion Sturhan
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.)
Licentia Patent Verwaltungs GmbH
Original Assignee
Licentia Patent Verwaltungs GmbH
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 Licentia Patent Verwaltungs GmbH filed Critical Licentia Patent Verwaltungs GmbH
Publication of FR2556124A1 publication Critical patent/FR2556124A1/en
Pending legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05KPRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K5/00Casings, cabinets or drawers for electric apparatus
    • H05K5/02Details
    • H05K5/03Covers
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/02Bases, casings, or covers
    • H01H9/0264Protective covers for terminals
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02BBOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
    • H02B1/00Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
    • H02B1/015Boards, panels, desks; Parts thereof or accessories therefor
    • H02B1/06Boards, panels, desks; Parts thereof or accessories therefor having associated enclosures, e.g. for preventing access to live parts

Abstract

Covering element for uncovered terminals of a switch which are operated by screws, in particular for line-safety breakers, which includes a bent part made of an insulating material, kept level with the head of the screw of the terminal and covering the uncovered portion of the terminal, characterised in that the bent part 6 made of an insulating material includes appended portions 6d in the form of plates, which grasp the screw head 5a laterally and, after being pushed perpendicularly to the direction of the axis of the terminal screw 5, are held there by automatic tightening, and is engaged, virtually without play, by a projection 6c made on the wing 6b of the bent part which is almost parallel to the terminal screw 5 and covers the outside 3b of a fixed pressure clamp 3, in an opening 3c in the pressure clamp, so that only an uncovered terminal housing 4 which has to be manoeuvred by way of the terminal screw 5 may move in the longitudinal direction.

Description

La présente invention est relative à un élément couvrant pour bornes de commutateur découvertes commandées par des vis, notamment pour des interrupteurs de sécurité de ligne, qui comporte une pièce coudée en matériau isolant maintenue au niveau de la tête de la vis de borne et recouvrant la partie dégagée de la borne. The present invention relates to a covering element for exposed switch terminals controlled by screws, in particular for line safety switches, which comprises a bent piece of insulating material held at the head of the terminal screw and covering the cleared part of the terminal.

Des éléments couvrants de ce type sont connus et comportent, la plupart du temps, une pièce tubulaire élastique par laquelle ils sont montés sur la tête de la vis de borne. Il arrive souvent que plusieurs éléments couvrants soient réunis de manière à former une bande recouvrant simultanément des commutateurs alignés les uns à côté des autres. L'inconvénient de ces bandes couvrantes réside dans le fait qu'elles ne peuvent être montées qu'après la mise en place des conducteurs électriques et qu'ensuite les vis de borne ne sont plus accessibles. Covering elements of this type are known and most often include an elastic tubular part by which they are mounted on the head of the terminal screw. It often happens that several covering elements are joined so as to form a strip simultaneously covering switches aligned one beside the other. The disadvantage of these covering strips lies in the fact that they can only be mounted after the installation of the electrical conductors and that then the terminal screws are no longer accessible.

Par ailleurs, le brevet DE - OS 31 16 162 décrit un dispositif couvrant dans lequel une pièce coudée en matériau isolant comportant un collier de protection tubulaire est engagée élastiquement sur la tête de la vis de borne et l'entoure. Cette vis reste cependant accessible pour une manoeuvre ultérieure, mais elle peut, notamment dans le cas d'une boite de bornes, occuper différentes positions, de sorte que l'élément couvrant n'est pas fixé. Furthermore, patent DE-OS 31 16 162 describes a covering device in which a bent piece of insulating material comprising a tubular protective collar is engaged elastically on the head of the terminal screw and surrounds it. This screw remains accessible for subsequent operation, however, but it can, in particular in the case of a terminal box, occupy different positions, so that the covering element is not fixed.

Le but de l'invention est de permettre la réalisation d'un élément couvrant du type initialement défini qui, tout en assurant une protection suffisante des bornes découvertes contre tout contact, ne limite pas les possibilités d'accès aux vis de bornes, l'ouverture obligatoire d'une. boite de borness'effectuant en agissant sur la vis de borne correspondante. The object of the invention is to allow the production of a covering element of the type initially defined which, while ensuring sufficient protection of the terminals discovered against any contact, does not limit the possibilities of access to the terminal screws, the mandatory opening of a. terminal box is effected by acting on the corresponding terminal screw.

Ce but est atteint, suivant l'invention, du fait que, dans un dispositif du type initialement défini, la pièce coudée en matériau isolant comporte des pièces annexes en forme de plaques qui saisissent latéralement la tête de vis et, après avoir été poussées perpendiculairement à la direction de l'axe de la vis de borne, sont maintenues par serrage automatique et s'engagent presque sans jeu, par un bec en saillie ménagé sur l'aile de la pièce coudée qui est à peu près parallèle à la vis de borne et recouvre le côté extérieur d'un étrier de pression fixe, dans une ouverture de l'étrier de pression, de sorte que seuleuneboite de bornes non recouvertequi doit être manoeuvréepar l'intermédiaire de la vis de borne peut être déplacéedans le sens longitudinal. This object is achieved, according to the invention, in that, in a device of the type initially defined, the bent piece of insulating material comprises ancillary pieces in the form of plates which grip the head of the screw laterally and, after being pushed perpendicularly in the direction of the axis of the terminal screw, are held by automatic tightening and engage almost without play, by a projecting beak formed on the wing of the bent piece which is approximately parallel to the screw of terminal and covers the outer side of a fixed pressure caliper, in an opening of the pressure caliper, so that only an uncovered terminal box which has to be operated by means of the terminal screw can be moved in the longitudinal direction.

L'invention présente l'avantage de ne pas exiger de moyens supplémentaires pour le maintien de l'élément couvrant. Cet élément est une pièce simple, facile à fabriquer, qui permet également d'isoler les bornes, au choix, de leurs interrupteurs de ligne de largeur quelconque suivant le nombre de pôles. En plus d'une protection sûre contre tout contact fortuit, les dimensions d'enveloppe habituelles dans le cas des interrupteurs de ligne ne sont pas dépassées ; au contraire, du fait que l'élément couvrant a une position fixe, leur contour peut être prolongé avec des dimensions égales. The invention has the advantage of not requiring additional means for maintaining the covering element. This element is a simple part, easy to manufacture, which also makes it possible to isolate the terminals, as desired, from their line switches of any width according to the number of poles. In addition to safe protection against accidental contact, the usual enclosure dimensions in the case of line switches are not exceeded; on the contrary, since the covering element has a fixed position, their outline can be extended with equal dimensions.

Diverses autres caractéristiques de l'invention ressortent d'ailleurs de la description détaillée qui suit. Various other characteristics of the invention will also emerge from the detailed description which follows.

Une forme de réalisation de l'objet de l'invention est représentée, à titre d'exemple non limitatif, au dessin annexé. An embodiment of the object of the invention is shown, by way of nonlimiting example, in the accompanying drawing.

La figure unique est une vue en perspective du dispositif de l'invention, en partie arrachée. The single figure is a perspective view of the device of the invention, partially broken away.

A l'unique figure, deux commutateurs de protection de ligne 1 disposés l'un à côté de l'autre sont représentés en perspective, partiellement seulement. Leurs enveloppes en gradins la comportent chacune, du côté de l'entrée, une borne 2 qui est constituée par un étrier de pression 3 ancré dans l'enveloppe, par une boite de bornes 4 mobile et par une vis de borne 5 qui agit sur cette boite. Cette vis s'engage, d'une manière non représentée, en traversant un alésage ménagé dans la branche supérieure 3a de l'étrier de pression plié en forme d'U, dans un filetage ménagé dans le châssis de bornes 4 de forme à peu près annulaire. Celui-ci entoure la branche inférieure 3d et peut se déplacer dans le sens longitudinal, en même temps que la vis de borne, tant qu'aucun conducteur électrique n'est enserré entre l'étrier de pression et la boite de bornes. In the single figure, two line protection switches 1 arranged one next to the other are shown in perspective, only partially. Their tiered envelopes each have a terminal 2 on the entry side which is constituted by a pressure bracket 3 anchored in the envelope, by a movable terminal box 4 and by a terminal screw 5 which acts on this box. This screw engages, in a manner not shown, through a bore formed in the upper branch 3a of the pressure bracket folded in U shape, in a thread formed in the terminal frame 4 of slightly shaped near annular. This surrounds the lower branch 3d and can move in the longitudinal direction, at the same time as the terminal screw, as long as no electrical conductor is clamped between the pressure bracket and the terminal box.

L'élément couvrant maintenu sur la borne est une pièce coudée 6 isolante dont la largeur correspond à la largeur de l'enveloppe du commutateur dans le sens de la division des pôles et qui, pour le commutateur situé en avant, est, pour plus de clartétreprésenté en coupe. The covering element maintained on the terminal is a bent insulating piece 6 whose width corresponds to the width of the switch enclosure in the direction of the division of the poles and which, for the switch located in front, is, for more than clarity shown in section.

La pièce coudée isolante comporte un capuchon 6a fermé latéralement qui s'engage sur la tête Sa de la vis de borne et qui se prolonge, à la suite du côté étroit du commutateur, par une branche 6b comportant un bec en saillie 6c. L'intérieur du capuchon comprend, sur les deux surfaces latérales, des pièces annexes 6d en forme de bandes qui sont d'une seule pièce avec ces surfaces et ne sont visibles que sur un côté supérieur et qui entourent latéralement la tête de la vis de borne et, après avoir été poussées dans le sens de la flèche 7, se fixent par serrage automatique. De ce fait, le capuchon 6a qui va jusqu a l'enveloppe, mais reste ouvert dans la direction de l'enveloppe, est suffisamment élastique.The insulating bent part comprises a cap 6a closed laterally which engages on the head Sa of the terminal screw and which is extended, following the narrow side of the switch, by a branch 6b comprising a projecting spout 6c. The interior of the cap comprises, on the two lateral surfaces, attached parts 6d in the form of strips which are in one piece with these surfaces and are visible only on an upper side and which laterally surround the head of the screw. terminal and, after being pushed in the direction of arrow 7, are fixed by automatic clamping. Therefore, the cap 6a which goes to the envelope, but remains open in the direction of the envelope, is sufficiently elastic.

Le capuchon, qui se prolonge, sur sa face supérieure du contour de l'enveloppe du commutateur, comporte une ouverture de manoeuvre 6e à travers laquelle on peut agir, avec un tournevis non représenté, sur la vis de borne en utilisant la fente ménagée dans la tête de la vis. Dans le sens de la longueur de la vis de borne, l'élément couvrant est maintenu, de manière à ne pas pouvoir se déplacer, par le bec en saillie 6c, qui s'engage dans une ouverture 3c correspondante ménagée dans le côté extérieur 3b de l'étrier de pression. Cet étrier est en contact assez serré avec la branche 6b de la pièce coudée isolante, qui couvre toute la largeur du commutateur, ce qui constitue un obstacle supplémentaire à toute rotation. De ce fait, seule l'ouverture 4a de mise en prise au-dessous de l'étrier de pression reste libre pour le conducteur électrique non représenté. Ces dispositifs couvrants, que l'on peut placer, au choix, avant ou après le raccord des conducteurs électriques, répondent, notamment dans les installations de distribution industrielles, à toutes les exigences relatives à la protection contre des contacts des doigts ou des mains.  The cap, which extends, on its upper face of the contour of the switch casing, has a maneuvering opening 6e through which one can act, with a screwdriver not shown, on the terminal screw by using the slot made in the head of the screw. In the lengthwise direction of the terminal screw, the covering element is held, so as not to be able to move, by the projecting spout 6c, which engages in a corresponding opening 3c made in the outside side 3b pressure caliper. This stirrup is in fairly tight contact with the branch 6b of the insulating elbow piece, which covers the entire width of the switch, which constitutes an additional obstacle to any rotation. Therefore, only the engagement opening 4a below the pressure yoke remains free for the electrical conductor not shown. These covering devices, which can be placed, as desired, before or after the connection of the electrical conductors, meet, in particular in industrial distribution installations, all the requirements relating to protection against contact by fingers or hands.

Claims (3)

REVENDICATIONS 1 - Elément couvrant pour bornes de commutateur découvertes commandées par des vis, notamment pour des interrupteurs de sûreté de ligne, qui comporte une pièce coudée en matériau isolant maintenue au niveau de la tête de la vis de borne et recouvrant la partie découverte de la borne, caractérisé en ce que la pièce coudée (6) en matériau isolant comporte des parties annexes (6d) en forme de plaques, qui saisissent latéralement la tête de vis (5a) et, après avoir été poussées perpendiculairement à la direction de l'axe de la vis de borne (5), s'y maintiennent par serrage automatique, et s'engage, presque sans jeu, par un bec en saillie (6c) ménagé sur l'aile (6b) de la pièce coudée qui est à peu près parallele à la vis de borne (5) et recouvre le côté extérieur (3b) d'un étrier de pression (3) fixe, dans une ouverture (3c) de l'étrier de pression, de sorte que seul une boite de bornes (4) non recouverte qui doit être manoeuvréepar l'intermédiaire de la vis de borne (5) peut se déplacer dans le sens longitudinal. 1 - Covering element for exposed switch terminals controlled by screws, in particular for line safety switches, which comprises a bent piece of insulating material held at the head of the terminal screw and covering the exposed part of the terminal , characterized in that the bent piece (6) of insulating material has annexed parts (6d) in the form of plates, which grip the head of the screw (5a) laterally and, after being pushed perpendicular to the direction of the axis of the terminal screw (5), are held there by automatic tightening, and engages, almost without play, by a projecting spout (6c) formed on the wing (6b) of the bent part which is slightly near parallel to the terminal screw (5) and covers the outer side (3b) of a fixed pressure bracket (3), in an opening (3c) of the pressure bracket, so that only a terminal box (4) not covered which must be operated by means of the terminal screw (5) can move d in the longitudinal direction. 2 - Elément couvrant selon la revendication 1, caractérisé en ce que la pièce coudée (6) en matériau isolant a, dans la zone des parties annexes (6d) en forme de plaques, la forme d'un capuchon (6a) fermé, entourant la surface supérieure- (3a) de l'étrier de pression (3) et ne comportant qu'une ouverture de manoeuvre (6e) pour la vis de borne (5). 2 - Covering element according to claim 1, characterized in that the bent piece (6) of insulating material has, in the area of the appendices (6d) in the form of plates, the shape of a closed cap (6a), surrounding the upper surface (3a) of the pressure bracket (3) and comprising only one operating opening (6e) for the terminal screw (5). 3 - Elément couvrant selon l'une des revendications 1 ou 2, caractérisé en ce que le capuchon (6a) est adapté, en largeur et en forme, à l'enveloppe (la) du commutateur (1) et le prolonge de manière à réaliser un contour fermé.  3 - Covering element according to one of claims 1 or 2, characterized in that the cap (6a) is adapted, in width and in shape, to the casing (la) of the switch (1) and extends it so as to make a closed contour.
FR8417202A 1983-12-01 1984-11-12 Covering element for uncovered terminals of a switch Pending FR2556124A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19838334532 DE8334532U1 (en) 1983-12-01 1983-12-01 Cover for exposed connection terminals of switching devices

Publications (1)

Publication Number Publication Date
FR2556124A1 true FR2556124A1 (en) 1985-06-07

Family

ID=6759437

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8417202A Pending FR2556124A1 (en) 1983-12-01 1984-11-12 Covering element for uncovered terminals of a switch

Country Status (3)

Country Link
BE (1) BE901107A (en)
DE (1) DE8334532U1 (en)
FR (1) FR2556124A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2161614A1 (en) * 1999-07-13 2001-12-01 Power Controls Iberica Sl Terminal protection device for low voltage apparatus

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3537600A1 (en) * 1985-10-23 1987-04-30 Bbc Brown Boveri & Cie COVER DEVICE FOR CONNECTING TERMINALS OF POWER SUPPLY DEVICES
ATE71473T1 (en) * 1986-03-27 1992-01-15 Asea Brown Boveri ELECTRICAL INSTALLATION EQUIPMENT.
DE4110509C2 (en) * 1991-03-30 1994-07-28 Siedle & Soehne S Device for releasably connecting an upper part to a lower part of a housing
DE4436780C2 (en) * 1994-10-14 2000-08-31 Abb Patent Gmbh Terminal cover for an electrical installation device
DE102005043456A1 (en) * 2005-09-13 2007-03-22 Abb Patent Gmbh Terminal for an electrical switch
DE102009024867B4 (en) * 2009-06-09 2013-03-28 Abb Ag Installation switching device with terminal cover

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2161614A1 (en) * 1999-07-13 2001-12-01 Power Controls Iberica Sl Terminal protection device for low voltage apparatus

Also Published As

Publication number Publication date
BE901107A (en) 1985-03-15
DE8334532U1 (en) 1985-02-14

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