WO1993014545A1 - Piece moulee pour la fixation de cables electriques ou similaires - Google Patents

Piece moulee pour la fixation de cables electriques ou similaires Download PDF

Info

Publication number
WO1993014545A1
WO1993014545A1 PCT/FI1993/000018 FI9300018W WO9314545A1 WO 1993014545 A1 WO1993014545 A1 WO 1993014545A1 FI 9300018 W FI9300018 W FI 9300018W WO 9314545 A1 WO9314545 A1 WO 9314545A1
Authority
WO
WIPO (PCT)
Prior art keywords
moulding
attachment
sides
cable
accordance
Prior art date
Application number
PCT/FI1993/000018
Other languages
English (en)
Inventor
Tuomas Kerttunen
Original Assignee
Tuomas Kerttunen
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 Tuomas Kerttunen filed Critical Tuomas Kerttunen
Publication of WO1993014545A1 publication Critical patent/WO1993014545A1/fr

Links

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
    • H02G3/26—Installations of cables, lines, or separate protective tubing therefor directly on or in walls, ceilings, or floors

Definitions

  • the object of the invention is a longitudinal attachment moulding for an electrical cable or other, which includes a bottom section to be attached to a base, slightly flexible sides rising from the bottom section, which form between them a cable space that is wider than the distance between their free edges, into which the cable or other similar is pressed by temporarily spread- ing to the side the flexible free edges of the sides, members for carrying the cable between the sides at such a height that space remains beneath the cable for an attachment member, e.g. the head of a screw.
  • Finnish patent FI 31690 shows a single clip, which is manufac ⁇ tured by spray moulding in a suitable form.
  • the split level of the form is located in the centre, seen from the direction of the cable, in which case only short pieces can be produced.
  • a single clip is known from British patent GB 894867, in which a hole for the head of a screw in made in a separate operation.
  • the moulding includes a cover, which is pressed onto the moulding after the cable has been placed in it.
  • the cover grips a groove in the moulding.
  • the moulding must then be so commodious that the head of an attachment screw too fits into the moulding without raising the cable above the space in the moulding.
  • the cable lies loosely and curves requirement curved pieces.
  • the attachment base for cables is formed by a moulding that it considerably wider than the cable, to which normally several cables are attached to grooves in the moulding by means of gripping clips. After installation a moulding-shaped cover is pressed onto the moulding, this being attached to a groove i a protrusion from the bottom moulding.
  • moulding glue is spread on the bottom o the moulding that comes in contact with the base.
  • the moulding which is glued to a base, closes towards its open side an broadens towards the bottom, when the edges of the mouldin press the cable against the bottom, holding it firmly in th moulding.
  • th bending tension tends in time to lift the moulding from th base. Screw attachment is not possible, because the head of th screw remains in the cable space, thus raising it in an ugl manner at such points.
  • a moulding equipped with a false bottom is known from Germa patent publication No 20,237,764, in which the false botto supports the cable above the bottom in order to create a spac for the head of a screw.
  • the space is made so great that th head of the nail or screw remains entirely within it and the false bottom insulates the cable electrically from the attach ⁇ ment member.
  • a moulding of this type demands, as an additional operation, the pre-drilling of holes in the cover for the attachment screws.
  • a hard base such as concrete
  • one difficulty in attachment is the location of the attachment plug at the same point as the hole in the cover.
  • the hollow space is also said to be of significance in terms of manufac ⁇ turing techniques.
  • the intention of this invention is to create a real alternative to the individual clip installation of cables, based on unified attachment mouldings.
  • the intention of the invention is thus to create an attachment moulding for electrical cables and similar, which when installed recalls in its form the cable t be attached, which straightens the cable, and which can b easily and reliably attached to a base. It is also wished, b means of the invention, to correct the defects of the above mentioned attachment mouldings.
  • the cable i raised by means of parts formed in the sides or by separat protrusions from the bottom level by at least as much that th head of the attachment member, a nail or screw, can fit com pletely beneath the cable in the space between the sides.
  • an attachment moulding in accordance with the inventio is attached by means of individual attachment members, by mean of screws or nails.
  • the moulding and the cable placed in i are essentially stiffer than the cable by itself, essentiall fewer attachment points are required than when attaching b means of individual clips.
  • the bottom of the mouldin is visible the whole time through the gap remaining between th sides.
  • Both sides include the member referred to above, which ar separate from each other, tongues or thickenings in form, forming supports opposite to the free edges that bend on top o the cable.
  • the manufacture of the moulding by extruding plastic require that the material strength of the moulding profile is as eve as possible.
  • the bending of the sides required by differen thicknesses of cable is arrived at by reductions made a suitable points.
  • Figure 1 shows the manner of installing electrical cables mos generally used and in accordance with the presen state of the art
  • Figure 2 shows the installation of electrical cables in Figur 1 using attachment mouldings in accordance with th invention
  • Figures 3 and 4 show cross-sections of a moulding in accord ⁇ ance with the first form of application, both separ- ately and in use
  • Figures 5 and 6 show cross-sections of a moulding in accord ⁇ ance with a second form of application
  • Figures 7 and 8 show cross-sections of a moulding in accord- ance with a third form of application
  • Figure 9 shows a perspective view of a moulding with cables as in Figures 4 and 11
  • Figure 10 shows a cross-section of a multiple moulding formed from several parallel mouldings
  • Figure 11 shows a partial enlargement of the multiple moulding shown in Figure 10
  • Figure 12 shows a variation of the multiple moulding using a profile as in Figure 5
  • Figure 13 shows a cross-section of yet another variation of the moulding as in Figure 5 for very fine cables
  • Figure 14 shows a cross-section of yet another variation
  • Figures 15 and 16 show an installation arrangement using mouldings in accordance with the invention
  • the permanent electrical installations of a building are ge erally carried out with 7 - 16 mm diameter electrical cabl and telecommunications installations with 4 - 8 mm diamet cables.
  • the attachment of cables shown in Figure 1, by means individual clips, has so far been the most economical manner attachment. Using individual clips, electrical cables must attached at intervals of about 15 - 25 cm and telecommunicati cables at intervals of about 7 - 15 cm.
  • Figure 2 shows the same installation using attachment moulding in accordance with the invention.
  • the electrical cables run very straight in moulding 4, which is open on top.
  • Th colour of the moulding has been selected to be the same as th colour of the cable.
  • the curve upper sections 13 the sides 2 of the attachment mouldings delimit the cable space 3 between them.
  • the cable is forced to within a certain distance o the bottom section 1, as in Figures 4, 8, and 9.
  • the attachment moulding is thus formed by th bottom section 1 and the sides 2.
  • the lower part of the sides 2 includes vertical lower section 12 rising vertically from the botto section 1 and a curved upper section 13 attached to this.
  • Th lower part of the curve, as formed part 8 forms a membe carrying the cable, which prevents cable 6 from pressin against the head 7 of the attachment member 11.
  • the curve parts 13 take up a position on both sides of the cable 6 holding this in a completely fixed position.
  • the attachment moulding c be used for cables within a certain range of diameters.
  • an attachment moulding of this kin is advantageously attached using a dome-headed screw, in whic case the head 7 of the screw is advantageously the same widt as the attachment space 9, thus pressing the bottom sectio against the base over as great a surface area as possible.
  • Figures 5 and 6 show another principle form of application o the attachment moulding in accordance with the invention, whic differing in scale from Figures 3 - 8 is intended for fine cables than the previous ones.
  • 3 - 4 mm diameter screws independent of the size of the pieces.
  • the width of the head o the screw is typically twice the external diameter of th thread.
  • the head of a scre of a diameter of at least 6 mm does not permit the cable spac to be narrowed to much less than 9 mm.
  • the curved sides squeeze the cable between them and against the false botto formed by the tongues 5, as in Figure 10. At the screw th tongues 5 bend to the side, thus permitting the head of th screw to go under the cable space, Figure 6.
  • the head of the screw may be as wide as the cable space, when the cable space can be narrowed at least as much as th head of the screw or brad.
  • the basic components of th attachment moulding are the bottom section 1 and sides 2, bu in addition to these the moulding includes carrier tongues 5 i both sides, when a space 3 for the cable and a space 9 for th head are formed within the attachment moulding 4.
  • the sid sections 2 rise vertically from the bottom section and curv towards one another only at the upper edge.
  • the bott section 1 is visible between the sides 2 and their connecte tongues 5 for placing a screw or spike or brad in order t insert them through the bottom section.
  • Figures 10 and 11 show an improved variation of the attachmen moulding of Figures 3 and 4.
  • this several attachment mould ings are connected by their bottom section by means of specia connecting strips 14.
  • This individual attachmen mouldings 4 can be removed from this five attachment mouldin unit 15.
  • a unit 15 of this kind can still be advantageousl manufactured by extrusion if the length is 2 - 3 m.
  • a unit o this kind can be used to advantage when installing two or mor cables parallel to one another, in which case the number o attachments can be further reduced.
  • durin transportation individual attachment mouldings suffer les damage when forming part of a unit of this kind than whe separate.
  • Figure 11 shows in addition improvements made to an individua moulding when compared to Figures 3 and 4.
  • the bottom sectio 1 advantageously includes a guide groove 19, by means of whic it is easy to centre screws, brads, and tools.
  • the edges of th bottom section 1 include broad thin section 17, which provid the side sections 2 with flexibility, even after the attachmen of the attachment moulding 4.
  • the profile of the attachmen moulding 4 here is of even thickness except for the edges 18 o the sides.
  • the cable space provides a suitable form for cables of differing diameter. Eve though the cable presses to some extent into the rectangula space 9, which remains between the straight side sections 12 most of this remains available to the heads of the attachmen members.
  • the width (L,) of the space 9 reserved for the head o the attachment member is most advantageously 50 - 85% of th greatest width (L j ) of the cable space 3.
  • the height (H ⁇ ) of th aforementioned rectangular space 9 is advantageously 20 - 35% of the total internal height (H) of the moulding 4.
  • Figure 12 shows an improved version of an attachment moulding 4 in accordance with Figures 5 and 6, in this case also as a parallel row version.
  • the tongues forming part of the sides 2 are relatively slightly higher than those of the attachment moulding in Figure 5.
  • Attachment takes place most advantageously using a countersunk-head screw 21, the lower conical surface of which is guided by the thinned edges 18 of the sides 2 without damaging them.
  • the final position of the screw is shown by a broken line, when it can be seen that the head takes up a position entirely beneath the tongues 5.
  • the side of the bottom section 1 has a thinning 17, the bottom section 1 and the sides 2 being otherwise of nearly equal thickness.
  • the width (L-,) of the bottom section 1 is about 6 mm.
  • the gap (L g ) between the tongues 5 is advantageously 30 - 60% of the internal width (L.,) of the bottom section.
  • the internal height of the space delimited by the tongues 5 is advantageous ⁇ ly 40 - 70% of the internal height (H) of the entire moulding.
  • the gap (L18) between the edges 8 of the sides is advantageous- ly 40 - 70 % of the internal width of the bottom section.
  • Thinning 22 forms a flexing point in the sides, which permits the sides to bend to the width of the electrical cable.
  • the sides 2 do n really bend at any other point than the thinning point and t thinned edges.
  • the head 7 of the brad used as an attac ment member 11 remains entirely in the space 9 reserved for t head.
  • the previous attachment mouldings' sides include curved parts which may, however, be quite as well realized as shown i Figure 14.
  • the attachment mouldin includes a bottom section 1 and sides 2, in which, however, th upper part 13' of the sides is realized with the aid of severa angles and not as a continual curve.
  • the bending of the side is also carried out in a manner differing slightly from th previous one, that is by means of thinning 22.
  • attachment mouldings take place in accord ance with Figures 15 and 16.
  • the attachment mouldings 14 ar attached at long intervals, for example in the case of a gypsu board wall only at the supporting studs, i.e. at about 60 c centres.
  • the attachment moulding 4 is attached using a suitabl attachment member 11. Either a 3 - 3,5 mm dome-headed screw o a brad is used.
  • the groove in the bottom of the moulding guide the point of the screw or brad to the centre of the moulding
  • the cabl is brought from the end of the moulding and not from it opening, in which case a suitable gap is left between th device and the moulding.
  • Figure 15 The cable 6 is simply pushed int the attached moulding 4 once this has been attached to th base.
  • the material of the moulding is, for example, PVC plastic polyamide, polypropylene, or polythene.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Installation Of Indoor Wiring (AREA)
  • Led Device Packages (AREA)
  • Supports For Pipes And Cables (AREA)

Abstract

L'invention se rapporte à une pièce moulée longitudinale (4) pour la fixation d'un câble électrique (6) ou similaire, qui comprend une section de fond (1) fixée à la base (10), des côtés légèrement flexibles (2) qui s'étendent depuis la section de fond et qui forment entre eux un espace (3) pour les câbles qui est plus large que la distance séparant leurs bords libres, espace dans lequel on loge le câble (6) ou autre objet similaire par pression en écartant latéralement de façon temporaire les bords libres flexibles des côtés (2), des parties formées séparées (8) des côtés (2) ou des languettes spéciales (5) servant à soutenir le câble (6) entre les côtés à une hauteur telle qu'un espace est créé en permanence sous le câble pour la tête (7) de l'élément de boulonnerie, par exemble pour une vis, de sorte que la section de fond (1) est toujours visible depuis en haut.
PCT/FI1993/000018 1992-01-21 1993-01-20 Piece moulee pour la fixation de cables electriques ou similaires WO1993014545A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI920254A FI89117C (fi) 1992-01-21 1992-01-21 Fastsaettningsraenna foer el-ledning
FI920254 1992-01-21

Publications (1)

Publication Number Publication Date
WO1993014545A1 true WO1993014545A1 (fr) 1993-07-22

Family

ID=8534107

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/FI1993/000018 WO1993014545A1 (fr) 1992-01-21 1993-01-20 Piece moulee pour la fixation de cables electriques ou similaires

Country Status (3)

Country Link
AU (1) AU3354093A (fr)
FI (1) FI89117C (fr)
WO (1) WO1993014545A1 (fr)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2328994A (en) * 1997-09-06 1999-03-10 Laurence Robinson Fast fix trunking
LT4659B (lt) 1997-03-14 2000-05-25 Novoplastic Pailgas vamzdinis produktas
WO2003063316A2 (fr) * 2002-01-22 2003-07-31 Fabien Cacciani Dispositif de pose et de fixation pour canalisation des circuits divers, domestiques ou industriels
ES2264619A1 (es) * 2004-11-18 2007-01-01 Legrand España, S.L. Dispositivo para la sujecion de conducciones tubulares.
US20110030190A1 (en) * 2009-08-06 2011-02-10 3M Innovative Properties Company System and method for providing final drop in a living unit in a building
GB2504766A (en) * 2012-08-10 2014-02-12 Thomas James Helliwell Apparatus for retaining a cable or tubing
US9225154B2 (en) 2011-03-14 2015-12-29 3M Innovative Properties Company Adhesive-backed communications media cabling and system
US9640958B2 (en) 2010-04-14 2017-05-02 3M Innovative Properties Company Removable adhesive backed ducts for cabling and a removal method

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1947782A1 (de) * 1968-10-04 1970-04-30 Reichle & De Massari Fa Vorrichtung zum UEberputzverlegen elektrischer Leitungen
EP0349376A1 (fr) * 1988-06-28 1990-01-03 Legrand Guide-câble

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1947782A1 (de) * 1968-10-04 1970-04-30 Reichle & De Massari Fa Vorrichtung zum UEberputzverlegen elektrischer Leitungen
EP0349376A1 (fr) * 1988-06-28 1990-01-03 Legrand Guide-câble

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
LT4659B (lt) 1997-03-14 2000-05-25 Novoplastic Pailgas vamzdinis produktas
GB2328994A (en) * 1997-09-06 1999-03-10 Laurence Robinson Fast fix trunking
WO2003063316A2 (fr) * 2002-01-22 2003-07-31 Fabien Cacciani Dispositif de pose et de fixation pour canalisation des circuits divers, domestiques ou industriels
WO2003063316A3 (fr) * 2002-01-22 2004-03-11 Fabien Cacciani Dispositif de pose et de fixation pour canalisation des circuits divers, domestiques ou industriels
ES2264619A1 (es) * 2004-11-18 2007-01-01 Legrand España, S.L. Dispositivo para la sujecion de conducciones tubulares.
US9343885B2 (en) 2009-08-06 2016-05-17 3M Innovative Properties Company System and method for providing final drop in a living unit in a building
US20150171609A1 (en) * 2009-08-06 2015-06-18 3M Innovative Properties Company System and method for providing final drop in a living unit in a building
US20110030190A1 (en) * 2009-08-06 2011-02-10 3M Innovative Properties Company System and method for providing final drop in a living unit in a building
US9343886B2 (en) 2009-08-06 2016-05-17 3M Innovative Properties Company System and method for providing final drop in a living unit in a building
US9640958B2 (en) 2010-04-14 2017-05-02 3M Innovative Properties Company Removable adhesive backed ducts for cabling and a removal method
US9225154B2 (en) 2011-03-14 2015-12-29 3M Innovative Properties Company Adhesive-backed communications media cabling and system
GB2504766A (en) * 2012-08-10 2014-02-12 Thomas James Helliwell Apparatus for retaining a cable or tubing
GB2504766B (en) * 2012-08-10 2016-10-19 James Helliwell Thomas Apparatus for retaining a cable or tubing

Also Published As

Publication number Publication date
FI920254A0 (fi) 1992-01-21
FI89117B (fi) 1993-04-30
AU3354093A (en) 1993-08-03
FI89117C (fi) 1993-08-10

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