EP1725802A1 - Holder for cable trays of the kind which is comprised of longitudinal and transversal metal wires - Google Patents

Holder for cable trays of the kind which is comprised of longitudinal and transversal metal wires

Info

Publication number
EP1725802A1
EP1725802A1 EP05722226A EP05722226A EP1725802A1 EP 1725802 A1 EP1725802 A1 EP 1725802A1 EP 05722226 A EP05722226 A EP 05722226A EP 05722226 A EP05722226 A EP 05722226A EP 1725802 A1 EP1725802 A1 EP 1725802A1
Authority
EP
European Patent Office
Prior art keywords
holder
slot
wall
holder according
locking
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.)
Withdrawn
Application number
EP05722226A
Other languages
German (de)
French (fr)
Inventor
Jan ÖJERSTAV
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.)
Wibe AB
Original Assignee
Wibe AB
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 Wibe AB filed Critical Wibe AB
Publication of EP1725802A1 publication Critical patent/EP1725802A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L3/00—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets
    • F16L3/22—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets specially adapted for supporting a number of parallel pipes at intervals
    • F16L3/223—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets specially adapted for supporting a number of parallel pipes at intervals each support having one transverse base for supporting the pipes
    • 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
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L3/00—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets
    • F16L3/26—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets specially adapted for supporting the pipes all along their length, e.g. pipe channels or ducts
    • 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
    • H02G3/26—Installations of cables, lines, or separate protective tubing therefor directly on or in walls, ceilings, or floors
    • H02G3/263—Installation, e.g. suspension, of conduit channels or other supports

Definitions

  • This invention concerns a holder for cable trays according to the preamble of claim 1.
  • a problem with the known solution is that a holding force which is exerted of such a downward folded locking tongue against a co-operating metal wire is limited by such parameters as material thickness of the holder, the width of the tongue and the flexibility of the material in the tongue.
  • the locking tongue can be formed and dimensioned for its task, namely to lock a cable tray in the holder, without this having to affect the dimensioning of the holder itself with respect to material thickness, width of the holder etc.
  • Fig. la, b shows a holder according to the invention formed as a pendulum holder
  • Fig. 2a, b shows a holder according to the invention formed as a bracket
  • Fig. 3 shows the holder according to Fig. 1 in engagement with a cable tray intended to be supported
  • Fig. 4 shows a detail of Fig. 3 in an enlarged scale.
  • a pendulum holder 1 is shown, that is the holder is intended for being suspended from for example a ceiling via a not shown supporting means, which is fastened, for example in the square hole 2, centrally on the holder 1.
  • the holder 1 has a first wall 3 and two second walls 4 and 4' extending at right angle against the first wall 3, for forming an upside-down turned U-profile in use.
  • each slot 5 Distributed along its length there are arranged recesses going out from the first wall 3, which go over to slots 5, each having a width for reception of a metal wire of a cable tray.
  • a remaining portion of the first wall above each slot 5 comprises an engagement portion 6, which together with a slot edge 7 directed against the engagement portion 6 in &ach second wall as well as a slot bottom 7' defines the slot 5.
  • the outermost engagement portion 8 is for-med with a cut-out locking tongue 9, having a general direction at an- angle to the general extension of the engagement por ion 8, as seen from its bottom 1 ' .
  • the locking tongue 9 is bend-able in towards the associated slot 5' for locking engagement with a metal wire positioned in this slot which will be desc ribed in more detail below.
  • Fig. lb shows the pendulum holder 1 in a perspective from below for the sake of increased clarity.
  • Fig.2a shows an alternative holder 11 for cable trays , which holder is in this case formed as a bracket for fasten ing to a wall, a pole or the like.
  • the holder 11 displays a conventional bracket shape, that is having a (here enforced) , power receiving side 12 and a fastening po tion 13 for contact against said wall or pole.
  • the bracket 11 is manufactured in one single piece having bends between the first wall 3 an «d two second walls 12 and 12' (analogous with the pendulum bolde in Fig. la, b) and with a bend between the second wall 12 and the fastening portion 13.
  • Fig. 2b shows the bracket 11 in a perspective view from below for the sake of increased clarity.
  • Fig. 3 shows the pendulum holder 1 in Fig. la in a using position, however, without a support means in the form of a suspension device for suspension from a ceiling or the like.
  • the cable tray 14 intended to be secured is of the previously known kind which consists of a number of longitudinal 15 and transversal 16 metal wires, which are joined to each other in respective cross points.
  • the transversal metal wires 16 are, at their end regions, bent upwardly for forming an essentially shallow U-shaped chute profile in section.
  • Fig. 3 From Fig. 3 is shown that the longitudinal metal wires 15 are inserted into a respective slot 5 below an engagement portion 6.
  • the outermost metal wire (to the left in Fig. 3), of the ones that are in the same plane, co-operates with the outermost slot 5' and is fastened by a downwardly bent locking tongue 9.
  • the engagement edge 10 forms an acute angle, which in this case is the same as the acute angle ⁇ limiting the locking tongue, with the axis of the metal wire 17, wherein by bending down the locking tongue, this engagement edge 10 will come into engagement with the metal wire 17.
  • Locking tongues corresponding to the locking tongue 9 on the figures may be present on plural engagement portions on one and the same holder. Locking tongues may be formed differently, possibly with otherwise disposed angling and bending line.
  • Bending initiators could be formed otherwise with for example an impression in the material, one or more holes etc.
  • the shape of the first, as well as the second walls, may be made differently. Possibly it could be sufficient with one single second wall in certain applications.
  • the holder is formed in one piece with holes and bends, but it is not excluded that it is manufactured from plural joint parts, whereby for example the walls are separate parts from the start and, in case of a bracket holder, the fastening arrangement is formed in another way.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Installation Of Indoor Wiring (AREA)
  • Supports For Pipes And Cables (AREA)
  • Details Of Indoor Wiring (AREA)
  • Clamps And Clips (AREA)

Abstract

A holder (1; 11) for cable trays (14) of the kind which is comprised of longitudinal (15) and transversal (16) metal wires includes a first wall (3) and at least one second wall (4, 4'; 12, 12'), wherein a number of slots (5), that are distributed along the length of the holder, each having a width that allows reception of one of said metal wires, are arranged so that each slot (5) is essentially parallel with and positioned below an engagement portion (6, 8) of the first. wall and is limited by a slot edge (7) in said second wall or walls, and by a bottom (7'). At least one engagement portion (8) is in a distal region provided with a cut-out for forming a locking tongue (9), which has an extension at an angle against the direction of an associated slot (5'), as seen from the bottom of the slot (7'), and which is bendable inwardly towards the associated slot (5') for locking engagement with the aid of a locking edge (10) against a metal wire (17) which is inserted into the slot (5').

Description

HOLDER FOR CABLE TRAYS
Field of the invention
This invention concerns a holder for cable trays according to the preamble of claim 1.
Background of the invention
From EP Bl 0741828 such a holder for cable trays is previously known, wherein fastening of the cable trays is ensured through downward folding of a metal tongue around a respective metal wire to be secured, said tongue comprising a part of the first wall .
A problem with the known solution is that a holding force which is exerted of such a downward folded locking tongue against a co-operating metal wire is limited by such parameters as material thickness of the holder, the width of the tongue and the flexibility of the material in the tongue.
In order to allow effective downward bending of the tongues relatively weak tongues are presupposed, which counter-act a secure fastening.
Aim and most important features of the invention It is an aim of the invention to provide a holder as above, wherein the drawbacks of the background art are avoided.
This aim is achieved according to the invention through the features of claim 1.
Hereby it is achieved, on the one hand that the locking tongue can be formed and dimensioned for its task, namely to lock a cable tray in the holder, without this having to affect the dimensioning of the holder itself with respect to material thickness, width of the holder etc.
According to the invention, rigid locking is achieved, since the locking engagement between the locking tongue and the metal wire is provided through the contact of a locking edge on the former against the latter.
Further advantages and features of the invention are subject of the dependant claims and are apparent from the following description of an embodiment.
Brief description of drawings
The invention will now .be described in more detail at the background of an embodiment and with reference to the annexed drawings, wherein:
Fig. la, b shows a holder according to the invention formed as a pendulum holder,
Fig. 2a, b shows a holder according to the invention formed as a bracket,
Fig. 3 shows the holder according to Fig. 1 in engagement with a cable tray intended to be supported, and
Fig. 4 shows a detail of Fig. 3 in an enlarged scale.
Description of embodiment In Fig. la a pendulum holder 1 is shown, that is the holder is intended for being suspended from for example a ceiling via a not shown supporting means, which is fastened, for example in the square hole 2, centrally on the holder 1. The holder 1 has a first wall 3 and two second walls 4 and 4' extending at right angle against the first wall 3, for forming an upside-down turned U-profile in use.
Distributed along its length there are arranged recesses going out from the first wall 3, which go over to slots 5, each having a width for reception of a metal wire of a cable tray. A remaining portion of the first wall above each slot 5 comprises an engagement portion 6, which together with a slot edge 7 directed against the engagement portion 6 in &ach second wall as well as a slot bottom 7' defines the slot 5.
On Fig. la, the outermost engagement portion 8 is for-med with a cut-out locking tongue 9, having a general direction at an- angle to the general extension of the engagement por ion 8, as seen from its bottom 1 ' . The locking tongue 9 is bend-able in towards the associated slot 5' for locking engagement with a metal wire positioned in this slot which will be desc ribed in more detail below.
Fig. lb shows the pendulum holder 1 in a perspective from below for the sake of increased clarity.
Fig.2a shows an alternative holder 11 for cable trays , which holder is in this case formed as a bracket for fasten ing to a wall, a pole or the like. For this purpose the holder 11 displays a conventional bracket shape, that is having a (here enforced) , power receiving side 12 and a fastening po tion 13 for contact against said wall or pole.
In the shown embodiment the bracket 11 is manufactured in one single piece having bends between the first wall 3 an«d two second walls 12 and 12' (analogous with the pendulum bolde in Fig. la, b) and with a bend between the second wall 12 and the fastening portion 13.
The arrangement for co-operation with a cable tray to be secured is identical to the one that is described in connection with Fig. la and is therefore not described again here .
Fig. 2b shows the bracket 11 in a perspective view from below for the sake of increased clarity.
Fig. 3 shows the pendulum holder 1 in Fig. la in a using position, however, without a support means in the form of a suspension device for suspension from a ceiling or the like.
The cable tray 14 intended to be secured is of the previously known kind which consists of a number of longitudinal 15 and transversal 16 metal wires, which are joined to each other in respective cross points. The transversal metal wires 16 are, at their end regions, bent upwardly for forming an essentially shallow U-shaped chute profile in section.
From Fig. 3 is shown that the longitudinal metal wires 15 are inserted into a respective slot 5 below an engagement portion 6. The outermost metal wire (to the left in Fig. 3), of the ones that are in the same plane, co-operates with the outermost slot 5' and is fastened by a downwardly bent locking tongue 9.
In Fig. 4, the area for fastening is shown in an enlarged scale, wherein the metal wire 17 thus is in co-operation with the bent-down locking tongue 9, which is bent down along a bending line 18, which is essentially at a right angle to the extension of the metal wire 17.
The engagement edge 10 forms an acute angle, which in this case is the same as the acute angle α limiting the locking tongue, with the axis of the metal wire 17, wherein by bending down the locking tongue, this engagement edge 10 will come into engagement with the metal wire 17.
Preferably the angle is chosen so small that the engagement between the locking tongue 9 and the metal wire 17 will become self-locking, that is that possible vibrations and other movements of the metal wire 17 do not cause the locking tongue 9 to bend back to an initial position where it comes in the • same plane as the first wall 3. Possibly the edge of the locking tongue which engages the metal thread is provided with a friction increasing element such as grooves for increased engagement security.
In order to facilitate the bending process and to control the bending with respect of the positioning of the bending line 18 there are cut-outs 19 in the root area of the locking tongue 9 from each side serving as bending initiators.
The invention may be modified within the scope of the claims and the holder can thus be formed otherwise than what is shown on the drawings. For example, the number of slots can vary.
Locking tongues corresponding to the locking tongue 9 on the figures may be present on plural engagement portions on one and the same holder. Locking tongues may be formed differently, possibly with otherwise disposed angling and bending line.
Bending initiators could be formed otherwise with for example an impression in the material, one or more holes etc.
The shape of the first, as well as the second walls, may be made differently. Possibly it could be sufficient with one single second wall in certain applications.
It is preferred that the holder is formed in one piece with holes and bends, but it is not excluded that it is manufactured from plural joint parts, whereby for example the walls are separate parts from the start and, in case of a bracket holder, the fastening arrangement is formed in another way.

Claims

1. Holder (1; 11) for cable trays (14) of the kind which is comprised of longitudinal (15) and transversal (16) metal wires, wherein the holder (1; 11) includes a first wall (3) and at least one second wall (4, A ' } 12, 12') at an angle to the first wall, wherein a number of slots (5) , that are distributed along the length of the holder, each having a width that allows reception of one of said metal wires, are arranged so that each slot (5) is essentially parallel with and positioned below an engagement portion (6, 8) of the first wall and is limited by a slot edge (7) that is directed against it in said second wall or walls, and by a bottom { ! ' ) , characterized in that at least one engagement portion (8) in. a distal region is provided with a cut-out for forming a locking tongue (9) , which has an extension at an angle against the direction of an associated slot (5'), as seen from the bottom of the slot { 1 ' ) , and which is bendable inwardly towards the associated slot (5' ) for locking engagement with the aid of a locking edge (10) against a metal wire (17) which is inserted into the slot (5') .
2. Holder according to claim 1, characterized in that the locking tongue (9) is bendable along a bending line (18) which has a direction essentially parallel with the direction of said engagement portion (9) .
3. Holder according to claim 1 or 2, characterized in that the locking edge (10) is shaped such that it forms an acute angle ( ) with a metal wire (17) which is inserted into the slot .
4. Holder according to claim 1, 2 or 3, characterized in that the locking tongue (9) is arranged on a-n engagement portion (8) which is positioned outermost orx the holder.
5. Holder according to any of the previou-s claims, characterized in that the locking tongue (9) provides a proximal weakening (9) for facilitating and controlling its bending.
6. Holder according to any of the previou-s claims, characterized in that it provides two second, essentially parallel opposite sides so that the holder a.t least partially has a U-shaped section.
7. Holder according to any of the previou-s claims, characterized in that it is comprised of a bracket (11) or a pendulum holder (1) .
8. Holder according to any of the previou-s claims, characterized in that it is manufactured from a metal plate material .
9. Holder according to any of the previous claims, characterized in that a slot (5' ) which is positioned outermost on the holder has an entrance direction for insertion of a metal wire essentially parall_el with the first wall (3) .
10. Holder according to any of the previouts claims, characterized in that a slot (5) which is not positioned outermost on the holder has an entrance direction for insertion of a metal wire essentially at a rright angle to the first wall (3) .
EP05722226A 2004-03-19 2005-03-16 Holder for cable trays of the kind which is comprised of longitudinal and transversal metal wires Withdrawn EP1725802A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE0400696A SE526809C2 (en) 2004-03-19 2004-03-19 Holder for cable gutters consisting of longitudinal and transverse metal wires
PCT/SE2005/000380 WO2005090846A1 (en) 2004-03-19 2005-03-16 Holder for cable trays of the kind which is comprised of longitudinal and transversal metal wires

Publications (1)

Publication Number Publication Date
EP1725802A1 true EP1725802A1 (en) 2006-11-29

Family

ID=32067452

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05722226A Withdrawn EP1725802A1 (en) 2004-03-19 2005-03-16 Holder for cable trays of the kind which is comprised of longitudinal and transversal metal wires

Country Status (3)

Country Link
EP (1) EP1725802A1 (en)
SE (1) SE526809C2 (en)
WO (1) WO2005090846A1 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8540090B2 (en) 2009-05-19 2013-09-24 Panduit Corp. Telescoping wire cable tray system
FR2947109B1 (en) * 2009-06-18 2012-11-09 Acroba CONSOLE FOR SOLIDARIZING A CABLE PATH TO A POST
ES2346733B1 (en) * 2010-04-15 2011-09-05 Pemsa Pequeño Material Electrico S.A. SUPPORT FOR PORTABLE TRAYS AND ASSEMBLY FORMED BY SUPPORT AND BASE PIECE FOR VARIABLE ANGLE.
US8424814B2 (en) 2010-05-19 2013-04-23 Panduit Corp. Cable tray cable routing system
US11662041B2 (en) 2019-07-29 2023-05-30 Erico International Corporation Support clip

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2727712A1 (en) * 1994-12-01 1996-06-07 Metal Deploye Sa SUPPORTING ELEMENT FOR MESH STRUCTURES
PT849853E (en) * 1996-12-19 2002-09-30 Metal Deploye Sa CONSOLE FOR SUPPORT SOCKETS
FR2785340B1 (en) * 1998-11-03 2001-01-26 Metal Deploye Sa DEVICE FOR FIXING A WIRE ON A CARRIER ELEMENT PROVIDED WITH AT LEAST ONE OPENING AND CARRIER ASSEMBLY FOR A CABLE ROUTE COMPRISING AT LEAST ONE SUCH DEVICE
FR2812927B1 (en) * 2000-08-08 2002-10-31 Krieg & Zivy Ind OBJECT SUPPORT CONSOLE, PARTICULARLY CABLE PATH SUPPORT CONSOLE, PARTICULARLY IN MESH
FR2836980B1 (en) * 2002-03-05 2004-06-04 Tolmega CABLE PATH CONSOLES, METHOD FOR MOUNTING CABLE PATHS ON SUCH A CONSOLE
FR2843495B1 (en) * 2002-08-09 2005-11-25 Bernard Hennequin CABLE ROAD SUPPORT CONSOLE

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2005090846A1 *

Also Published As

Publication number Publication date
SE0400696D0 (en) 2004-03-19
SE0400696L (en) 2005-09-20
SE526809C2 (en) 2005-11-08
WO2005090846A1 (en) 2005-09-29

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