WALL FOR PARTITIONING INTO SECTIONS A CHANNEL FOR ELECTRICAL CABLES

Abstract: Partition walls for partitioning on a cable channel for electric cables into sections. One longitudinal edge of the partition wall (5) is formed with fastening means (6) for removable attachment to attachment means (4) arranged on the inside of the web or back wall (1) of the channel. Fastening means (6) and attachment means (4) are formed for attaching the partition wall in a selectably turned position, and in both positions the wall forms an angle (//c) with a plane (P) at right angles to the web of the channel The opposite longitudinal edge of the partition wall is provided on either side of said wall with a projection (8).

Description: WALL FOR PARTITIONING INTO SECTIONS A CHANNEL FOR ELECTRICAL CABLES FIELD OF THE INVENTION The present invention relates to a wall for partitioning a channel for electrical cables into separate parallel elongate sections extending along the length of the channel. The different sections are used for accommodating cables for heavy current, trunk telephone lines, local communication lines and in certain cases for alarm or warning system cables. There may also be data transmission cables in such channels. DESCRIPTION OF PRIOR ART There are already such channels with one or several flat partition walls integrally formed with the inside of the web or back wall of the channel, to project out at right angles to the web. However, these channels have the disadvantage that they are not adaptable to prevail¬ ing needs in different projects. Furthermore, different numbers of sec¬ tions are required for different installations, which can result in uneconomical use of the actual channel, and also uneconomical store- keeping to meet different installation cases. Instead of the channels with fixed partition walls mentioned above, it is also known to dispose the partition walls so that they can be fitted to elongate attachment means on the inside of the channel web, along the inner edge of the wall there being fastening means for fitting to the attachment means of the web. As a result of the forming of their fastening means in coaction with the attachment means on the web of the channel, these partition walls can only be fitted in a given orientation, and project out at right angles to the web when fitted. Their longitudinal outer edge can be formed with an edge strip which extends upwards a distance sufficient to retain cables laid thereon but leaving an opening to the partition wall above for inse.r.r ' ing cables. Apart from the limitation of only being able to be fitted in one di¬ rection, there is also a drawback in that they can be difficult to dismantle from the channel. Furthermore, these walls always give the same section space, determined by the disposition of the attachment means along the channel web. The free longitudinal edges of the channel side walls are- provided with some form- of mutually opposing fixing flanges for fastening the front wall of the channel and fastening pos sible connection boxes, and if it is desired to have a width adjusted to the box dimensions and also a desired number of sections, for ex- ample, this can give a section space which is difficult of access and can also make the fitting of the partition wall difficult. SUMMARY OF THE INVENTION The present invention relates to a partition wall, as already known, which is formed along one longitudinal edge with fastening means for removable attachment, preferably snap-on attachment, to longitudinal attachment means disposed on the inside of the channel web. The object of the invention is to eliminate the above-mentioned dis¬ advantages with the known partition walls, and what is characterizing for the invention is apparent from the following patent claims. By means of the invention, the size of the respective channel section can be selected by selectable orientation -of the partition wall. Said partition wall further enables easy fitting and dismantling thereof, and dismantling can be done from a suitably selected side of the wall This is also applicable to the partition walls situated closest to th side walls of the channel, these partition walls being selected suit- ably turned to give an easily accessible channel section between the side wall and partition wall. More easily accessible channel sections can be obtained, on the same channel width, e g' a width adapted for at taching connection boxes with standard dimensions' between the fixing flanges of the side walls, by using a partition ' wall in accordance with the invention than. by fitting previousl known ' partition walls. A preferred embodiment of the invention will now be described in de¬ tail in the following while referring.to the attached drawing. BRIEF DESCRIPTION OF DRAWING Figure 1 illustrates the preferred partition wall in accordance with the invention in an end view. Figure- 2 is a perspective view of a por¬ tion of a channel' fitted with partition walls formed in accordance with Figure 1. PREFERRED EMBODIMENT Partition walls in accordance with the -present invention are intended for fitting in a channel for electrical cables, to partition said chan¬ nel into separate parallel sections extending along the channel, .the different sections being used for cables for heavy current, trunk te¬ lephone lines, Local internal telephone lines and in certain cases lines for alarm systems. Data transmission cables can also be laid in such a channel. Somewhat schematically illustrated in Figure 2, there is a cable chan¬ nel with a web or back wall 1 and two side walls ' 2- The free edges of the side walls are formed with fixing flanges 3 projecting towards each other, and although this is not shown, these flanges will be formed with some form of longitudinal attachment means for fastening a front wall and connection boxes (not shown) between said flanges. Along the inside of the web 1 in the shown embodiment of the channel there are T-shaped attachment rails 4, adapted for having the partition wall, generally denoted by the numeral 5, fastened thereto. The channel, -. - shown substantially U-shaped in cross section, with side walls 2 pro¬ jecting at right angles from the web 1, can also have some other cross sectional shape, and can also be put together from two parts, L-shaped in cross section, one part comprising web and side wall and the other part comprising front wall and side wall. The partition wall 5 in accordance with the invention has, as shown in Figure 1, one Longitudinal edge formed with fastening means 6 for simple snap-on attachment onto the T-shaped rail 4, and optionally in a posi¬ tion corresponding to that shown for the middle wall in Figure 2, or f OMPI in a turned position.in relation to this position, as shown for the upper and .Lower walls in Figure- . Furthermore^ the partition wall is so formed that in both these partitions, its support portion 7 (for the cables) forms an angle with a plane along the T-rai I at right- angles to the web 2. In figure 1, this plane is denoted by- the letter P, and the angle which the support portion 7, in this position up¬ wardly directed, forms with the plane is. denoted' by . In the opposit ly turned position for the partition wall, the support portion 7 is downwardly directed relative to the plane. " The opposing Longitudinal edge of the.partition wall is formed with an edge ' strip 8 projecting both downwards and upwards relative to said wall to prevent laid cabl from falling out, irrespective of which of said positions the wall as sumes. In the illustrated embodiment of the partition wall, the fastening me 6 comprises an inward slot surrounded by an edge wall 18 constituting an extended portion of the support portion 7 of said wall, the edge w 18 forming an angle with the support portion- substantially 180 Less angle α, a back wall or web 9 projecting substantially at right angle from the support portion 7 at its juncture with the edge wall 18, and an edge wall 10 projecting from the wall 9 a distance "from its free e to leave an edge.portion 11 on the wall 9, the edge wall 10 being ori ed substantially parallel to the support portion 7, The free ends of t edge waLLs 18 and.10, which form an edge plane, have extended portions 12 and 13, respectively, formed with opposing grooves 14 and 15 adapt for snapping onto the T raiL 4 of the channel. These extended portions are also formed with exterior grooves 16 and 17, which are open in a direction towards the opposite edge 8 of the partition wall. By forming the fastening means 6 in this mode,- there has been obtaine an advantageous, springiness or resilience of the fastening means, whic has enabled a simple and simultaneously, reliable snap-on attachment of the partition wall in both its said positions. Furthermore, by means the exterior grooves 16 and 17 simple dismantling of the wall has been enabled by using an ordinary screw-driver, which is inserted in either groove to bend, out the extended portion 12 or 13, so that it is slippe __}' r: off the T rail 4. When the extended portion 13.is slipped off, the wall 9 with its projecting edge portion 11 serves as a fulcrum for the screw¬ driver.- To improve springiness of the fastening means 6, the edge .wall 10 is preferably made somewhat thinner than the edge wall 18. Although the illustrated fastening means 6 has naturally been given an advantageous embodiment, other forms thereof are also possible within the scope of the invention, however. What is essential for the parti¬ tion wall in accordance with the invention is its form and attachment for obtaining an optionally turned partition wall, which, when fitted, forms an angle to the plane P, said plane being at right angles to the channel web, whereby the size of the channel sections formed by the par¬ tition walls can be adjustably and simply varied, there being withall simple fitting and dismantling a greater number of partition walls of than what was possible with previously known structures. P

Claims: WHAT WE CLAIM IS : 1 A wall for partitioning a cable channel for electrical cables into separate parallel sections along the channel, one Longitudinal edge of said partition wall, formed as an elongate plate, being forme with fastening means for removable attachment, preferably snap-on at- tachment, to longitudinal attachment means -adapted on the inside of t web or back wall of the channel, characterized in that the fastening means (6) of the partition wall (5) and the attachment means (4) on the channel are formed for mutual snap-on' attachment in selectably tu ed position of the partition wall, said wall (5) in -both positions fo ing an angle (α) to a. plane (P) through the attachment means (4) of t channel, said plane being at right angles to the web (1) of the chann and in that the opposing longitudinal edge of said wall (5) is provid with a projection (8) on either side of said wall. 2 A partition wall as claimed in claim 1, characterized in that t fastening means (ό) of said wall (5) comprises a slot in the edge pla formed by the attachment means in said wall. 3 A partition wall as claimed in claim 2, characterized in that t slot is defined by substantially parallel slot walls (18, 10). 4 A partition wall as claimed in claim 2, characterized in that t slot is defined by the outer edge portion of' the partition wall (5) f ing one slot wall (18), a wall forming the bottom of the slot and pro jecting substantially at. right angles from the partition wall, and a wall projecting from the bottom slot wall forming the second slot wal ( 10). 5 A partition wall as claimed in claim 4, characterized in that t outer edge portion (18) forms said angle (&) with the remaining porti (7) of said wall. 6 A partition wall as claimed in any of the preceding claims 3-5, the attachment means (4) of the channel comprising a T-shaped rail. characterized in that on the inside of the slot walls (18, 10) adjacent their outer free ends there- are formed mutually opposing grooves (14, 15) for snapping on to the T-shaped rait. 7 A partition wall as claimed in any of claims 2-6, characterized in that each of the slot walls (18, 10). is formed with a portion (12, 13, respectively) projecting outwards in a direction away from the slot, said portions each being formed with an exterior groove (16, 17) which is open in a direction towards the said opposite edge (8) of the par- ' tition wall (5). 8 A partition wall as claimed in claim 6 o 7 / characterized in that the grooves (14, 15) adapted for snapping onto the T shaped rail (4) are formed in the extended portions (12, 13). βu. U

Inventors: LEGERIUS B
Applicants: ERICSSON TELEFON AB L M, LM ERICSSON TELEFON AB
Application year: 1980
Main classification: H02G3
IPC codes: H02G3