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
  • H02G3/00—Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles
  • H02G3/02—Details
  • H02G3/04—Protective tubing or conduits, e.g. cable ladders or cable troughs
  • H02G3/0437—Channels
  • H02G3/0443—Channels formed by wire or analogous netting
• • 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
  • H02G3/00—Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles
  • H02G3/02—Details
  • H02G3/06—Joints for connecting lengths of protective tubing or channels, to each other or to casings, e.g. to distribution boxes; Ensuring electrical continuity in the joint
  • H02G3/0608—Joints for connecting non cylindrical conduits, e.g. channels

Definitions

• the present invention relates to cable routing elements allowing, by their assembly to each other, end to end, to form a cable tray.
• connection systems including composite materials, simply operating by superimposing and interlocking an end of a cable routing element on the end of a consecutive element.
• the present invention aims to overcome all the disadvantages of the existing cable routing elements mentioned above. Its objective is therefore to propose adjacent cable routing elements comprising an integrated connection system that is economical to manufacture and which, compared to current systems, allows greater installation flexibility, in particular by increasing positioning tolerance of the fittings relative to the supports of the cable routing elements.
• each cable routing element comprises, at its longitudinal ends, at least one longitudinally protruding finger, or at least one longitudinally arranged cavity;
• the finger protruding from a first element is adapted to be slid tightly into a cavity homologous to the aforementioned one arranged in a second cable routing element adjacent to the preceding one;
• the cavity arranged longitudinally in a first element is adapted to closely receive a finger homologous to the aforementioned, that includes another cable routing element adjacent to the previous;
• a cable routing element can be connected to another element of the same type simply by fitting thanks to connecting means integrated to each element; these connection means are made very economically as we will see below.
• the fitted recess of the multiple connection means makes it possible effectively to provide a function of carrying one end of a cable routing element by another element, while allowing a great latitude for positioning the junction between two pathways. cables adjacent to the supports.
• the cable routing elements comprise, over their entire length, at least two longitudinal hollow bars.
• the cavity or end cavities are then delimited by the interior of the hollow bars, while the finger or the fingers are positioned at the other end of the hollow bars.
• the dimensions of each hollow bar and each corresponding finger may be such that there is conservation of the section of material between a section considered on the hollow bar and a section considered at the corresponding finger, so that said finger can be operated directly on the hollow bar by hot deformation without addition or removal of material.
• the longitudinal bars of a side wall of a cable routing element comprise, at one end of this element, fingers as mentioned above, while the longitudinal bars of the Another side wall of the same cable routing element and at the same end comprise cavities as mentioned above.
• the elements of cable paths have a certain symmetry that allows them to be butted in any direction.
• the ends of the cable routing elements may comprise either either fingers or cavities or both insofar as the adjacent cable routing element is provided with a complementary configuration allowing the embedding of a finger in a cavity.
• a cable routing member may be provided with only fingers at each of its ends. In this case, the adjacent cable runs will only have cavities at each of their ends.
• said longitudinal bars are advantageously arranged at the upper edge and the lower edge of each side wall to ensure perfect alignment of a cable routing element to the other.
• bars can also be arranged at the bottom of the cable routing to ensure good continuity of the bottom of one element to another.
• the bars may advantageously have a circular section.
• said bars may each consist of a separate profile.
• the bars are then rigidly connected to each other by junction pieces made of close relatives in close proximity to each other. to form an open-geometry side wall of a cable routing element.
• a cable routing element may end with a connecting piece so that the end joining piece constitutes a peripheral local reinforcement of a cavity.
• the fingers may have a length greater than the width of the connecting pieces so that when fully engaged in the cavities, the ends of the fingers and the zones longitudinal bars defining the cavities can always be brought into contact by an action on the outside of the bars.
• At least one finger of a cable routing element, or each finger of this element comprises an extension connected to its free end, forming a portion. of smaller diameter, connected to the finger, and an end portion of the same diameter as the finger, the corresponding cavity, or each cavity, of another cable routing element being dimensioned to receive the finger and the corresponding extension; each cavity is intended to be deformed and crushed against each corresponding finger.
• each cable routing element may comprise a pipe connection type collar or a crimp ring intended to be tightened, crimped (FIG. e) or welded (e) on each longitudinal bar at said portion of smaller diameter of the corresponding extension so as to deform the bar and to lock the finger and the extension in the cavity.
• the wall of at least one cavity may be made of a thermoplastic material and have a reduced thickness allowing it to be secured to a finger engaged in said cavity by melting the surfaces in contact with each other. this finger and the cavity, this fusion being in particular carried out by means of a heating pin placed on said zone.
• the aforementioned fingers and cavities may comprise reliefs adapted to ensure the maintenance of a finger in the engagement position in a corresponding cavity, in particular in the form of projecting annular parts arranged on a finger and engaging in complementary projections located inside the cavity, forcing a force engagement of this finger in this corresponding cavity.
• the reliefs are such that they make it possible to achieve irreversible engagement of a finger in a corresponding cavity. They can in this case include a structure opposing the withdrawal of a finger from a cavity, for example in the form of annular projections sawtooth.
• FIG. 1 is a perspective view, before connection, of two cable routing elements according to a first embodiment in which the longitudinal bars each consist of a separate section and are connected by junction pieces;
• Figure 2 is a perspective view of two cable routing elements according to another embodiment having among others a variant of positioning of the fingers and cavities;
• Figure 3 is a view of the elements of Figure 1 after connection;
• FIG. 4 is a perspective view of two cable routing elements according to yet another embodiment where two bars are integral with a side wall of the cable routing element;
• FIG. 5 is a side view, in section, of two cable routing elements after connection according to yet another embodiment which illustrates a connection between a cable routing element located at the junction pieces, and
• FIG. 1 is a perspective view, before connection, of two cable routing elements according to a first embodiment in which the longitudinal bars each consist of a separate section and are connected by junction pieces;
• Figure 2 is a perspective view of two cable routing elements according to another embodiment having among others a variant of positioning of the fingers and cavities;
• Figure 3 is
• FIG. 1 represents two elements 1 and 2 of cable routing comprising two parallel side walls 3 and crosspieces 4 regularly spaced, connected to the side walls 3 and constituting the bottom of these elements 1 and 2.
• Each side wall 3 of an element cable routing is formed by two longitudinal bars 5 of cylindrical section, arranged at the upper edge and the lower edge of each side wall 3, and connecting pieces 6, arranged close to close on the bars 5, rigidly connecting these last one to the other.
• the bars 5 are of composite material. They are for example obtained by pultrusion.
• junction pieces 6 comprise ends traversed by the bars 5, which closely enclose these bars 5, and perforated central portions forming a body with these ends. These parts 6 may in particular be manufactured by injection and overmolded on the bars 5.
• the parts 6 form, on one side of one of their ends, bushes 7 for receiving the ends of the cross members 4 in force.
• the elements 1 and 2 are similar and their longitudinal bars 5 are arranged at identical locations from one element to another so that the longitudinal bars 5 of a first element 1 come into alignment with the longitudinal bars of the second element 2 when these elements are aligned for assembly.
• the longitudinal bars 5 of the first cable routing element 1 form, at a longitudinal end 8 of this first element 1, fingers 9 projecting from them axially, forming a body with them, and obtained by heat deformation of the end 8 without intake or removal of material as illustrated in Figure 6;
• the longitudinal bars 5 of the second cable routing element 2 comprise, at a longitudinal end 10 of this second element 2, cavities 11 formed by the interior of the hollow bars, adapted to receive the fingers 9 in close proximity to each other so as to realize connecting the two elements 1, 2 to each other.
• the longitudinal bars 5 of this element 1 comprise cavities identical to those mentioned above.
• the longitudinal bars 5 of the second element 2 comprise fingers identical to those mentioned above.
• the elements 1 and 2 of cable routing can thus be connected to other cable routing elements homologous to these elements 1 and 2, by insertion of the fingers 9 in the cavities 11.
• the connection elements are thus integrated in the routing of low cost cables (single hot deformation of one end).
• the fitted fitting of the four fingers 9 in the four cavities 11 makes it possible to efficiently perform a function of carrying one end of a cable routing element by another element, while allowing a large latitude for positioning the cable. connection between two adjacent cable routing elements.
• FIG. 2 shows another embodiment of the elements 1 and 2, in which the longitudinal bars 5 of a side wall 3 of a first element 1 comprise fingers 9 as mentioned above, while the longitudinal bars 5 of the other side wall 3 of the same element 1 comprise, at the same end, cavities 11 as mentioned above, and conversely at the other end (not shown).
• the fingers 9 also comprise spaced apart annular projections 12 engaging in complementary projections (not shown) located inside the cavities 11 making it necessary to engage a finger 9 in force in a corresponding cavity 11 and ensuring, in this way, the maintenance of the finger 9 in the engagement position in this cavity.
• connection thus formed between the two elements 1 and 2 of cable routing allows a more stable maintenance, even irreversible, and eliminates the constraints of positioning of the junction between the two cable paths adjacent.
• Figure 3 shows that each finger 9 is fully engaged in a cavity 11, ensuring a large assembly length and a perfect continuity of the cable path formed by the elements 1 and 2.
• the length of the fingers 9 can be increased to perfection to improve the strength of the assembly without changing the configuration of the junction between the elements 1 and 2 since these fingers 9 are inserted into the hollow portion of the bars 5 delimiting the cavities 11.
• FIG. 4 shows another embodiment of the elements 1 and 2, having the same connection system as that described with reference to FIG. 1.
• the elements 1 and 2 comprise two side walls 3 and a bottom 4 full. , forming a body with each other.
• the side walls comprise at their upper edge and their lower edge a hollow longitudinal bar 5 integral with the wall 3.
• FIG. 5 represents another embodiment of the cable routing elements 1 and 2 having generally the same constitution as the elements 1 and 2 described with reference to FIGS. 1 to 3.
• at least one finger 9, or each finger 9 comprises an extension 15 forming a portion 15a, connected to the finger 9, of smaller diameter, and a terminal portion 15b of the same diameter as the finger 9, the corresponding cavity 11, or each cavity 11, being dimensioned to receive the finger and the corresponding extension;
• each element 1 or 2 comprises a crimp ring 16 positioned on each lower longitudinal bar 5 at the portion 15a of the corresponding finger 9, which can be compressed on the bar 5 so as to deform the bar 5 and to lock the finger 9 in the cavity 11.
• junction pieces 6 arranged close relatives on the longitudinal bars 5, rigidly connecting the latter to one another.
• the junction pieces 6 envelop the cavities 11 and constitute a peripheral local reinforcement thereof.
• Each finger 9 has a length greater than the width of the connecting pieces 6.
• Figure 6 shows the sectional view of a hollow bar 5 as described above and one end comprises a finger 9 arranged directly on the bar by hot deformation without addition or removal of material.
• the dimensions of the hollow bar 5 and the corresponding finger 9 are such that, on the one hand, there is preservation of the section of material between a section considered on the hollow bar 5 and a section considered at the corresponding finger 9, and that on the other hand, the outside diameter of the finger 9 is substantially equal to the inside diameter of the hollow bar 5 whose other end defines a cavity 11.
• the invention thus provides a cable routing element to overcome, under the best conditions, the disadvantages of the homologous systems of the prior art.

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• Engineering & Computer Science (AREA)
• Architecture (AREA)
• Civil Engineering (AREA)
• Structural Engineering (AREA)
• Installation Of Indoor Wiring (AREA)
• Insulated Conductors (AREA)

Applications Claiming Priority (2)

Publications (1)

Family

ID=39027202

Family Applications (1)

Country Status (3)

Families Citing this family (3)

Family Cites Families (2)

• 2007
  • 2007-08-29 FR FR0706045A patent/FR2920600B1/fr not_active Expired - Fee Related
• 2008
  • 2008-08-18 EP EP08840895A patent/EP2188877A2/de not_active Withdrawn
  • 2008-08-18 WO PCT/FR2008/001196 patent/WO2009053563A2/fr active Application Filing

Non-Patent Citations (1)

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