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
  • H02G3/045—Channels provided with perforations or slots permitting introduction or exit of wires
• • 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
  • H02G3/0456—Ladders or other supports

Definitions

• the present invention has for objec a cable routing device for more paruculiieme ⁇ c the routing and distribution of electric cables.
• Cable runs include; an elongated U-shaped cross-sectional structure, inside which the cables are laid and possibly fixed, and made either from an assembly of metal elements forming a bottom and lateral uprights, commonly called “ladders”.
• cables' intended to support cables weighing approximately 100 kg / m with support distances of the order of 3 to 4 meters, either in the form of a single-piece structure made of solid or perforated sheet metal or still well in welded mesh, commonly called “cable trays”, intended to support cables with a weight of the order of 30 kg / m with support distances of the order of 1 to 2 meters.
• These structures consist of several constituent elements connected end-to-end, installed generally horizontally and having a sufficient rigidity to support the weight of the cables, without excessive bending.
• lattice metal cable tray devices are known, the lateral uprights of which are hinged to the bottom of the structure so as to be able to place the cable tray in a flat or L-shaped configuration for its stack storage. structures on top of each other or in a U-shaped configuration, that is to say with the uprights perpendicular to the bottom for its installation on site.
• structures on top of each other or in a U-shaped configuration that is to say with the uprights perpendicular to the bottom for its installation on site.
• the wire rope routing devices have a high weight and may have sharp edges, after cutting, which damage the cables or injure the installers.
• they are electrically conductive, which requires connecting each element of the cable routing device to the ground which greatly increases the installation costs.
• the present invention aims to overcome these disadvantages by providing a cable routing device for easily and quickly transform the cable tray device from a planar configuration or L of interest for its manufacture or for its storage and its transport to a U-configuration for on-site installation.
• the cable routing device is intended more particularly for the routing and distribution of electrical cables and has an elongate U-shaped cross section formed of an assembly of two lateral uprights forming the branches of the U and a bottom forming the base of the U and is essentially characterized in that the lateral uprights and the bottom are made substantially from a composite material and / or a reinforced plastic material and in that at least one lateral upright is pivotally mounted being articulated at the bottom around an axis of rotation by means of at least one hinge and in that it comprises means for snapping and abutment means capable of immobilizing said lateral upright perpendicular to said bottom under the action of its rotation.
• the cable routing device will comprise at least one locking stop constituting an obstacle to the rotation of the pivoting lateral upright prohibiting its rotation beyond an angle of
• the locking stop may also come into latching engagement.
• the latching means consist of lugs each intended to cooperate by snapping at the same time with a locking stop and a non-return stop.
• these consist of notches intended to snap into each other as the pivoting lateral jamb blocking in the opening is rotated, that is, that is to say towards the outside of the cable tray, at each index of rotation, said lateral upright pivoting in an angular position.
• latching means consist of at least one flexible tongue in flexion so that when the pivoting lateral upright is rotated, when it is at an angle of about 90.degree. bottom, said tongue undergoing, without rupture, an elastic deformation and is engaged by snapping its free edge against the surface of a non-return stop.
• the tongue may be positioned relative to its free edge so as to work in compression or traction
• the articulation between the bottom and the lateral pivotable upright can be achieved through a plurality of hinges each forming a hinge point about the axis of rotation common or not to all of said hinges.
• a hinge will consist of a lateral extension of the bottom enclosed in a window made in the lateral upright, joined together around the axis of rotation, allowing rotation of the lateral pivoting post.
• a lateral extension may have a hook shape intended to engage on the axis of rotation during assembly of the cable tray.
• a lateral amount it will be made in one piece by profiling.
• a lateral upright In a second embodiment of a lateral upright, it will be made from an assembly of at least two rods rigidly connected to each other by connecting pieces and the connecting pieces may be overmoulded on the rods or welded around the stems.
• the rods will preferably be made by profiling from a composite material reinforced with continuous fibers while the connecting pieces will be made by molding from a plastic material reinforced or not with staple fibers.
• each connecting piece may include a window which will be extended by an inverted U-shaped cage whose branches will be flared and enclose the lateral extensions so that the phase of engagement of the lateral extensions in the cage is done with play and that the tightening between said branches and the lateral extensions increases as the rotation of the lateral pivoting pillar increases to become total and without play when the angle of the lateral pivotable upright is close to 90 ° with the bottom corresponding to the angle of snap blocking the pivoting amount perpendicular to said bottom.
• the bottom In a first embodiment of the bottom, it is an assembly made in one piece, solid or openwork. In a second embodiment of the bottom, it consists of a succession of bars perpendicular to the longitudinal axis of the cable tray and the lateral extensions of the bottom are formed by the free ends of said bars.
• the bars may be made in one piece by compression molding or by injection or assembly of a body portion and at least one reported end portion forming the lateral extension.
• the bars advantageously include orifices for fixing the cables
• the bars may include lateral stabilizers bearing on a surface of the lateral pivoting upright for locking the bars perpendicular to the longitudinal axis of the cable tray and to avoid any longitudinal deformation of the latter during use.
• the bars may have an omega cross section, the two lateral legs may advantageously be at the end of the bars bearing surfaces intended to come into contact with a surface of the lateral upright.
• FIG. 1 represents a perspective view of a cable routing in one embodiment of the lateral amounts by assembly according to the present invention.
• FIG. 2 shows a perspective view of a cable path according to the present invention in the embodiment of Figure 1 in the assembly situation.
• FIG. 3 represents a perspective view of a bar constituting the bottom of the cable routing according to the present invention
• FIG. 4 represents a cross-sectional view of a cable routing according to the present invention as represented in FIG. 1
• FIG. 5 represents a perspective view of a bar in the inverted position of a cable tray according to the present invention provided with notches at its free ends in the form of a hook;
• FIG. 6 represents a cross-sectional view of a path; of cables according to the present invention provided with a bar described in Figure 5 -
• Figure 7 shows a perspective view of a lateral amount of a cable tray according to the present invention in one embodiment of the side uprights made in one piece.
• FIG. 8 represents a cross-sectional view of the cable tray according to the present invention shown in FIG. 7.
• FIG. 9 represents a perspective view of the cable tray described in FIG. 8 in an assembly situation
• FIG. 10 represents a perspective view of a cable tray described in FIG. 7 in a variant of one of the longitudinal edges of the lateral uprights;
• a cable routing device has an elongate structure 1 of U cross-section and comprises a bottom 2 and two lateral uprights 3 made substantially from a composite material or a reinforced plastics material.
• the lateral uprights 3 are pivotally mounted about an axis of rotation 30, parallel to the longitudinal axis 1 'of the cable tray, defining the junction line between the bottom 2 and the lateral uprights 3. To ensure the pivoting of the uprights 3 lateral to the bottom 2 of the hinges 4 are secured along the lateral sides of the bottom 2 - and constitute a multiplicity of points of articulation between the lateral uprights 3 and the bottom 2.
• the bottom 2 consists of a succession of bars 20, spaced regularly, perpendicular to the longitudinal axis 1 of the cable path 1 27 and the axes of rotation 30, which bars 20 are secured to the lateral uprights 3 by their free ends 20 '.
• a lateral upright 3 consists of two parallel rods 31 made preferably of composite material and interconnected by connecting pieces 32 of generally rectangular shape spaced regularly and located in the plane formed by the two rods 31 straight.
• a connecting piece 32 is made from a reinforced plastic material and has at each of its ends a transverse orifice 33 intended to receive respectively the rods 31 straight, one of which materializes the axis of rotation 30 of the lateral upright 3 with the bottom 2
• each connecting piece 32 comprises, at the level of the transverse orifice intended to be traversed by the rod 31 forming the axis of rotation 30 of the lateral upright 3, a window 34 making it possible to enclose the free end 20 'of a bar 20 in the window 34 around the rod 31 so as to ensure the articulation between the bottom 2 and the lateral upright 3.
• the connecting pieces 32 advantageously have a recessed geometry to save material while providing preferred areas of attachment for fixing electrical accessories such as junction boxes. They have not elsewhere a width, in the longitudinal direction of the cable routing, sufficient to provide a rigid connection, little deformable between the rods 31 and which has the effect of reducing the distance between two connecting pieces 32 consecutive thus limiting the deformations undergone by the rods 31 when the cable routing is in charge.
• a bar 20 comprises two hook-shaped free ends 20 'intended to be engaged during assembly, as can also be seen in FIG. 2, in the window 34 of the corresponding connecting piece 32 about the axis of rotation 30 represented by FIG. a rod section 31 passing through the window 34 of the connecting piece 32.
• the unclosed space 21 'of the hook 20' will be determined so as to allow engagement on the section of the axis of rotation 30 passing through the window 34 by snap-fastening in order to reinforce the fastening of the bars 20 to the lateral uprights 3 during their assembly.
• One end 20 ' comprises two lateral stabilizers 21 capable of bearing against the connecting piece 32 on either side of the window 34 in annular grooves 34' preventing any lateral inclination of the bar 20, in particular under the effect of external constraints during the introduction and pulling of the electrical cables which avoids any longitudinal deformation of the cable routing 1 installed.
• the upper outer face of one end 20 'of a bar 20 has two internal stops 22 and outer 23, the outer stop 23 consisting of a vertical wall 23' perpendicular to the longitudinal axis of the bar 20 and the plane containing the bottom 2 and the inner abutment 22 consisting of a horizontal surface 24 parallel to the longitudinal axis of the bar 20 and a vertical surface 24 'reinforcing the abutment function of the horizontal surface 24.
• the internal stop 22 constitutes an obstacle to the rotation of the lateral upright 3 preventing its rotation beyond a 90 ° angle with the bottom 2 when a bearing surface 36 of the connecting pieces 32 abuts against the surface horizontal 24 of the internal stop 22.
• the external abutment 23 constitutes a non-return abutment intended to snap-fit when the lateral upright 3 pivots towards the bottom 2 and is in an angular position of approximately 90 ° with the bottom 2, a bearing surface 37 d a connecting piece 32 preventing the rotation of the lateral upright 3 opening with the bottom 2 that is to say towards the outside of the cable path as indicated by A.
• the bearing surface 37 is formed by the end surface of a tongue 35 flexibly flexural and resistant to buckling, formed in the window 34 of a connecting piece 32 substantially perpendicular to the plane of the connecting piece 32
• the tongue 35 is intended to engage by snapping on the outer stop 23.
• a window 34 made in a connecting piece 32 is extended by an inverted U-shaped cage 5 and whose limbs 50 are flared and enclose the side walls 25, which are also flared at an identical inclination. 20 'ends of the bars 20 so that the phase of engagement of the ends of the bars in the cage is done with clearance and that the clamping between said branches 50 and the side walls 25 is progressive during the rotation of the lateral upright 3 for become total and without play when the angle of the latter is close to 90 ° with the bottom 2 at the time of snapping of the tongue 35 thus eliminating any lateral movement of the bars 20 after snapping.
• the tongue 35 is secured at one of its ends to the front edge of the base of the U forming the roof 52 of the cage 5, the outer surface of the front edge 51 constituting an abutment surface intended to come into contact with the vertical surface. 24 'of the inner abutment 22 of the corresponding bar 20 to reinforce the locking of the rotation beyond a 90 ° angle between the lateral upright 3 and the bottom 2.
• a lateral upright 3 thus forms, from a mechanical point of view, because of the properties of the various materials chosen, the composite and the reinforced plastics material, their geometry and their positioning, a rigid recessed beam in vertical bending having a much higher inertia than the sum of the inertia of the elements composing it.
• FIG. 5 and Figure 6 can be seen a bar 20 whose ends 20 'hook-shaped are engaged on a round rod 31 and have on their inner side a series of notches 26 for cooperating with complementary notches 36 made on the outer face of the axis of rotation 31 so as to form a circular rack whose notches 23,36 are snapped into each other as the rotation of the lateral upright 3 inwardly of the structure 1, in the direction of B, blocking at each index of rotation said lateral upright 3 in a given angular position until the angle between the lateral upright 3 pivoting and the bottom 2 is equal at about 90 °.
• a window 34 made in a connecting piece 32 has at its upper edge a ruler 38 which extends perpendicularly to the connecting piece 32 and which is intended to abut against the outer surface of the bottom. 2 when the lateral amount 3 reaches an angle of 90 ° with the bottom 2 preventing the lateral upright 3 from pivoting beyond this angle towards the inside of the structure 1 while the notches 26, 37 prevent the lateral upright 3 from pivoting in the opposite direction towards the outside the structure 1.
• FIG. 7, FIG. 8 and FIG. 9 show a structure 1 comprising two lateral uprights 6 made in one piece by profiling, each of which is in the form of an elongated rectangular panel comprising windows 60 intended to receive the free ends. 20 'hook-shaped bars 20 constituting the bottom 2 of the structure 1.
• each lateral upright 6 is rounded and forms the axis of rotation 30 around which pivots the lateral upright 6.
• the lateral edge 61 delimits one of the sides of the windows 60, on which the ends are engaged. free 20 'of the bars 20 of the bottom 2 locked in the windows 60 so as to secure the lateral uprights 6 to the bottom 2, as can be seen in Figure 9, and to allow the pivoting of the lateral uprights 6 about the axis of rotation 30 relative to the bottom 2.
• Maintaining the lateral uprights 6 in an angular position perpendicular to the bottom 2 is achieved by a tongue 63 secured perpendicularly and longitudinally to the inner face of the lateral uprights 6 to snap, when the lateral upright 6 is an angle of about 90 ° with the bottom 2, by its longitudinal free edge 64 on a non-return stop 27 made in a block 28 surmounting the outer face of the free ends 20 'of the bars 20 and preventing the lateral upright 6 from pivoting outwards towards the outside of the structure 1.
• the block 28 further comprises a locking stop formed by a wall 29 perpendicular to the bar 20 against which abuts the inner wall of the lateral upright 6 when it is at a 90 ° angle with the bottom 2 preventing the latter to pivot in closing beyond this angle towards the interior of the structure 1.
• the bars 20 have in a variant of their embodiment an omega cross section integrating the stabilizers 21 at their free ends 20 ', which stabilizers 21 have a rounded shape to fit the circular shape of the longitudinal edge 61 of a lateral amount 6 on which they come in support to strengthen the stability of the structure.
• Figure 10 shows a variant of the side posts 6 made in one piece, one of which 62 longitudinal edges forming the axis of rotation is semi-circular inside the structure 1 of the cable tray.
• a free end 20 'of a bar 20 is surmounted by a block 28 consisting of a wall 29 perpendicular to the bar 20 and provided with a lug 7 having on the underside of its free edge a flange 70 beveled and intended to engage by snapping into a slot, not shown, practiced in the wall of the lateral upright 6 so that the edge of the slot is inserted between the rim 70 and the vertical wall 29 'which has the effect of blocking the lateral upright 6 in a position perpendicular to the bottom.

Landscapes

• Engineering & Computer Science (AREA)
• Architecture (AREA)
• Civil Engineering (AREA)
• Structural Engineering (AREA)
• Details Of Indoor Wiring (AREA)
• Installation Of Indoor Wiring (AREA)
• Electric Cable Arrangement Between Relatively Moving Parts (AREA)

Applications Claiming Priority (2)

Publications (1)

Family

ID=38941825

Family Applications (1)

Country Status (10)

Families Citing this family (15)

Family Cites Families (19)

• 2007
  • 2007-06-20 FR FR0704390A patent/FR2917912B1/fr active Active
• 2008
  • 2008-06-16 CN CN2008800205517A patent/CN101689756B/zh not_active Expired - Fee Related
  • 2008-06-16 IN IN8246DEN2009 patent/IN2009DN08246A/en unknown
  • 2008-06-16 WO PCT/FR2008/000827 patent/WO2009013399A1/fr active Application Filing
  • 2008-06-16 JP JP2010512733A patent/JP2010530728A/ja active Pending
  • 2008-06-16 US US12/664,896 patent/US20100181438A1/en not_active Abandoned
  • 2008-06-16 BR BRPI0813155-4A2A patent/BRPI0813155A2/pt not_active Application Discontinuation
  • 2008-06-16 RU RU2010101678/07A patent/RU2479901C2/ru active
  • 2008-06-16 CA CA2691035A patent/CA2691035A1/en not_active Abandoned
  • 2008-06-16 EP EP08826533A patent/EP2171818A1/fr not_active Withdrawn

Non-Patent Citations (1)

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