FR2482771A3

FR2482771A3 - Articulated protective cable sheathing - comprises alternating cylindrical and elbow elements allowing movement through wide angle

Info

Publication number: FR2482771A3
Application number: FR8011170A
Authority: FR
Original assignee: Individual
Current assignee: Individual
Priority date: 1980-05-16
Filing date: 1980-05-14
Publication date: 1981-11-20
Also published as: FR2482771B3

Abstract

The articulated cable sheathing consists of a series of metal elements of two kinds. The first element (1) is a simple hollow cylinder with its ends slightly bevelled inwards. The second element (2) is a cylinder with a spherical enlarged portion (3) in the middle of its length. The ends (4) of the cylinder remain unaffected by the central enlargement. These two kinds of element fit together alternately so that the plain cylindrical elements rotate about the others which have a part spherical surface. The cylindrical ends of the second elements are of smaller diameter than the plain cylinders so that they fit inside these plain cylinder. The sheathing may be used in various applications - for example in protecting cables used in vehicle anti-theft systems.

Description

La présente invention concerne un système de blindage articulé pour câbles ou éléments similaires. The present invention relates to an articulated shielding system for cables or the like.

De façon plus concrete, elle consiste en un systè- me de blindage formé d'une pluralité de tronçons de tube métallique disposés les uns à la suite des autres de fa çon à définir une cavité longitudinale pour loger l'âme à protéger, qu'il s'agisse dun câble ou d'un autre élément similaire. More concretely, it consists of a shielding system formed by a plurality of sections of metal tube arranged one after the other so as to define a longitudinal cavity to accommodate the core to be protected, which it is a cable or something similar.

Ces tronçons de tube sont de deux types: ceux du premier type sont entierement cylindriquesg tandis que ceux du second type présentent une partie centrale sail- lante sensiblement sphérique 9 à partir de laquelle s'é- tendent deux parties cylindriques diamétralement opposées. These tube sections are of two types: those of the first type are entirely cylindrical while those of the second type have a substantially spherical projecting central part 9 from which extend two diametrically opposite cylindrical parts.

Dans le système, les tronçons du preeiër type alternent a- vec ceux du second type en s'articulant les uns sur les autres. Pour cette articulation, il est avantageux que le diamètre extérieur des parties cylindriques des tron çons à partie centrale sphérique soit inférieur au diamè- tre intérieur des tronçons cylindriques. Les parties cy- lindriques précitées peuvent avoir le meme diamètre exté- rieur ou des diamètres extérieurs différents.In the system, the sections of the first type alternate with those of the second type by hinging on each other. For this articulation, it is advantageous for the outside diameter of the cylindrical parts of the sections with spherical central part to be less than the inside diameter of the cylindrical sections. The above-mentioned cylindrical parts may have the same outside diameter or different outside diameters.

Grâce à cette structure articulée, il est possible de donner au blindage la courbure désirée ou imposée par l'usage auquel on le destine. Thanks to this articulated structure, it is possible to give the shielding the curvature desired or imposed by the use for which it is intended.

Les applications du système de blindage selon l'in vention sont multiples; on peut citer comme exemple la protection de câbles d'antivol de véhicules, les bras de lampes, ou le revêtement de tout élément longitudinal exposé à des effets de sectionnement. The applications of the shielding system according to the invention are multiple; examples include the protection of vehicle anti-theft cables, lamp arms, or the coating of any longitudinal element exposed to cutting effects.

De toute façon, l'invention sera bien comprise à 1' aide de la description qui suit, en référence au dessin schématique annexé, représentant, à titre d'exemple non limitatif, une forme d'exécution de ce système:
Fig. 1 est une vue en coupe de deux éléments, un de chaque type, qui font partie du système de blindage selon l'invention;
Fig. 2 est une vue en élévation et partiellement en coupe longitudinale de l'ensemble du système de blindage.In any case, the invention will be well understood with the aid of the description which follows, with reference to the appended schematic drawing, representing, by way of nonlimiting example, an embodiment of this system:
Fig. 1 is a sectional view of two elements, one of each type, which are part of the shielding system according to the invention;
Fig. 2 is an elevational view partially in longitudinal section of the entire shielding system.

Comme le montrent les figures, le système de blindage selon l'invention est constitué par une pluralité de pièces tubulaires métalliques 1 et 2, de deux types différents. Les pièces du premier type t sont entièrement cylindriques, tandis que les pièces du second type 2 présentent au milieu de leur longueur un renflement sphérique i, duquel partent deux parties cylindriques 4 diamétralement opposées et qui s'engagent dans les extrémités correspondantes des pièces entièrement tubulaires 1, jusqu'à ce que celles-ci viennent en butée contre le renflement sphérique 2, lequel joue alors le rôle de rotule et permet aux éléments 1 de prendre un grand nombre de positions angulaires relativement aux éléments 2. As the figures show, the shielding system according to the invention consists of a plurality of metallic tubular parts 1 and 2, of two different types. The parts of the first type t are entirely cylindrical, while the parts of the second type 2 have in the middle of their length a spherical bulge i, from which two cylindrical parts 4 diametrically opposed leave and which engage in the corresponding ends of the entirely tubular parts. 1, until these come into abutment against the spherical bulge 2, which then plays the role of ball joint and allows the elements 1 to assume a large number of angular positions relative to the elements 2.

A l'intérieur du blindage ainsi formé passe le ca- ble 5 ou autre élément à protéger. Inside the shield thus formed passes the cable 5 or other element to be protected.

Comme il va de soi et comme il ressort de ce qui précède, l'invention ne se limite pas à la forme d'exécution qui vient d'etre décrite à titre d'exemple seulement, elle en embrasse, au contraire, toutes les variantes de réalisation. Ainsi les parties cylindriques 4 peuvent avoir le même diamètre extérieur (cf. en haut, à gauche, de la fig. 2) ou des diamètres extérieurs différents (cf. As is obvious and as follows from the above, the invention is not limited to the embodiment which has just been described by way of example only, it embraces, on the contrary, all variants of achievement. Thus the cylindrical parts 4 can have the same outside diameter (cf. above, on the left, of FIG. 2) or different outside diameters (cf.

en bas et à droite, dans cette figure). bottom right, in this figure).

Claims

- CLAIMS

1.- Articulated shielding system for cables or similar elements, characterized in that it is formed of a plurality of metallic tubular pieces arranged one after the other so as to define a longitudinal cavity in which the cable is housed (5) or other element to be protected, in that said parts have two different configurations, some (1) being entirely cylindrical, while others (2) have an opherical bulge in the middle of their length (3) , from which two diametrically opposite cylindrical parts (4) depart, in that the cylindrical parts (2) alternate with those (2) provided with the spherical bulge, and in that the diametrically opposed cylindrical parts (4) engage in the corresponding ends of the neighboring cylindrical parts (1) until these come into abutment against the spherical bulge, so that the latter acts as a ball joint in the articulated structure of the system.

2.- System according to claim 1, characterized in that the two diametrically opposite cylindrical parts (4) have the same outer diameter.

3. - System according to claim 1, characterized in that the diametrically opposite cylindrical parts (4) have different external diameters.