DE2911100C2 - Cable ladder - Google Patents

Description

3 4

Design result. rounded corner corners 15 of the spars 1 the end faces In addition, in the above-described cable tray, it is the rung 2, which is preferably provided with beads 2b

advantageous if in the single rung and that in to the spar legs 4 almost spieUos are applied

the Zo- can located between the stiffening beads are verne in the spar legs 4 along this Ventilation holes are arranged. 5 running, pushed inwards and to the top

As a result, cooling by air convection is th of the rung 2 beads arranged approximately at the same level

the one laid in the cable tray and only provided on 16 anyway (Fig. 3). To this end, FIGS. 4 and 5

the reinforcing beads supported cables further, possibly preferred variants, and

am considerably improved, without the dimensional stability of which is in Figure 4 in the spar leg 3 one alongside

To affect the cable tray. io running, at a distance from the stile leg 4 '

Embodiments of the invention are in the ordered, upwardly pushed bead 17 vorgese drawings and are sewn in the following, in the area of which the bow-shaped webs 5 are attached described. It shows are shaped.

Fig. 1 is a perspective view of a cable- In Fig. 5 is for the same purpose and also for

platform, 15 simplification of the perforation of the pin insertion openings

F i g. 2 variants of further details in per- 9 in the spar leg 4 one pushed through to the outside

perspective view, molded bead 18, which is arranged so that their

F i g. 3 to 5 other profile shapes. lower flank to stile leg 3 at the same level The in F i g. 1 shown cable tray, of which is arranged

a large number of these can be used to form a cableway. 4 a pin 8 approximately circular in shape Big length arranged one behind the other and, shown Tiiteinan- profile, on the upper, arched shaft of the can be connected, is made of two L-shaped see one striving upwards, with the web 5 correct profiled Holmen 1 and a single bead 19 sponding to the Holmen is formed, while in the Men fastened rung composed prefer- shaft bottom of the bead 18 compared to a shaft manner the spars 1 are made of sheet steel of larger diameter 25 constriction 20 vorgesehe.i is that cause wähke manufactured as the rung 2 The spars 1 have a rend of driving the pin down to the sharpened one unequal-sided angular profile and are so arranged pin end part automatically, namely by the bead 19 on the lower part that its narrow spar legs 3 support each other on the side of the web 5, upwards are directed, while the wide spar leg 4 is bent to, whereby.by the shaft constriction the latter are arranged running at right angles and 30 20 this turning process is favored and with what Strive upwards and the narrow vision an even higher security of the pins 8 than before no 3 attached single rung 2 protrude. is achieved.

To attach the rung 2, which extends over the ge: In F i g. 2 are also the one on both long sides

extending over the entire length of the spars 1, are in the spar-cut and bow-shaped deformed webs 5

no 3 along these extending webs 5 35 arranged incisions 21 each over the fly channel

cut and curved upwards in a bow shape. th 22 of the webs 5 formed well enough so that

Corresponding to the base area of these webs 5, when a pin 8 is driven in, the ones in the plane of the /

the edge parts of the rung 2, square openings 7 spar legs 3 extending zones 23 of the web 5

arranged, through which the webs 5 can elastically deflect form-closing, with which even greater fer-

and reach through so that it cannot rotate. 40 tolerance tolerances than can be bridged up to now.

There is a plug connection through each web.

chernder pin 8 inserted through it, which has proven to be particularly advantageous with both,

End parts on the top of the rung 2 is supported when the cut webs 5 first over their In order to make it easier to insert the pin 5, the entire length is bent upwards in a bow-shaped manner and

the spar loops 4 the webs ■ * ■ opposite pin 45 then in a further operation under BiI-

Through openings 9 are provided. tion of the bending edge 22 partially in the plane of the building

The pins 5 have to be pushed back over almost their entire lungs joint leg 3, the same, circular cross-sections and are on the in F i g. 2 pointed at the edge parts of the front end of the push-in direction At which the fracture 7 inwardly directed tongues 21 cut, tip 10 facing away from the end of the pins 8 is each a 50 formed when placing the rung 2 on the webs 5 of countersunk head ti, which at Correct arrangement these upwards at least elastically bent veining of the pin 8 in a recess 12 of the spar ends, so that even with coarse manufacturing tolerances there is always kel 4 so that the head end of the pin 8 with a play-free contact of the webs 5 in the openings the outside of the spar leg 4 is achieved at most flush 7 completes 55 The spars 1 can be made of rolled, in particular

The bow-shaped web 5 and the pin 8 can also consist of rolled profile bars or are laid out, that when driving in the pin 8 at least edges of sheet metal strips are made.

under elastic pretensioning of the web 5 of the rung

2 is pressed onto the spar web 3. To avoid unintentional- Please use 2 sheets of drawings

at least to make it more difficult to loosen the pin 8, 60 '"" ™ - ~~~

the sharpened end part of the pen can be unwound
will.

F i g. 2 shows a pin 8 with an approximately centrally angled shank zone 13, which occurs when the pin is driven in
8 in the breakthrough 14 located under the web 5 it
automatically engages and iimit prevents unintentional loosening of the pin 8, without the above
Measures are required. So that even with

Claims (6)

1 2 L-shaped profile and from it running transversely to court claims: teten and rungs which can be fastened to the side legs facing each other. The rungs are with the 1. Cable ladder for holding electrical Ka- spar legs positively connected and through with, consisting of 5 pins running parallel to each other. To secure the pins are from the arranged ridges cut into substantially L-shaped spar legs facing each other Profile and from transversely directed and and from the original plane to the rungs provided on the facing spar legs bow-like curved webs, soft the attachable rungs, the rungs form- anchoring of mockery and rung by means of a Closely connected to the spar legs and io push-through element are used with the rungs of the are secured by pins, the securing of the base surface of the webs adapted openings onwei-pins is accomplished in that from each other sen, through each of which a bow-like web facing the shape Scorn thighs cut, from coherently and non-rotatably also reaches through the original level towards the rungs bü- per web at least one under this and on gel-like curved webs are provided, which 15 of the rung are supported, at least by means of adhesive Anchoring of mockery and rung by means of friction secured, the rung on the inward recovered Push-through element are used and the straightened spar legs are arranged pressing pin, Rungs of the base surface of the webs adapted, the webs each in the longitudinal extension of the spars Have breakthroughs through which each soft and, accordingly, the pins in the longitudinal extension bow-like web positively and non-rotatably 20 of the rungs are arranged to run. In addition, in reaches through that per web at least one this the lateral, the rungs protruding under the spar and support yourself on the rung - no stirrup-like bars opposite pin-through, at least secured by means of static friction, the plug-in openings are provided. Rungs on the inwardly directed Holmschen- The invention is based on the object of a non-pressing pin is arranged, wherein the 25 cable ladder in the preamble of claim 1 anstege in each case in the longitudinal extension of the hone and given type to improve so that with additional accordingly the pins in the longitudinal extension of the attitude of the advantages already achieved so far, which are arranged to run under rungs, and that in the other consist in that with the same stiles lateral, the rungs protruding from the rungs with different grooves! "" hedgehog-like webs opposite pin - 30 th can be formed, from which a substantial through openings are provided according to patent simplification of manufacture and storage 28 29 905, characterized in that the result is, in addition, a further simplification per cable tray only one? only rung (2) is seen in front of, among other things, the cable tray assembly and one that can be reached over the entire length of the further reduction in price
Cable ladder extends 35 The solution to this problem is characterized by 2. Cable tray according to claim 1, characterized in that only a single rung per cable tray indicates that the only rung (2) is a small one, which extends over the entire length of the More sheet metal thickness than the spars (1) has cable tray extends 3. Cable tray according to claim 2, characterized by this new design is per cable tray indicates that on the rung (2) several to 40 only produce a single rung and to mon-longitudinal extension the spars transversely and animals. protruding into the gutter of the cable ladder, as well as it is beneficial in the sense of the task if at a distance from one another, trough conveying- the only rung has a smaller sheet thickness than that mig profiled stiffening beads (2a) has integrally formed spars are. 45 An advantageous further development of the above-described 4. Cable ladder according to one of the preceding NEN cable ladder claims, characterized in that the several verlausteifungssicke (2a) to the longitudinal extent of the spars transversely on the longitudinal edges of the rung and protruding into the channel of the cable ladder, se (2) are formed opening out. as well as spaced trough conveying 5. Cable ladder are formed according to one of the preceding 50 mig profiled stiffening beads.
For further simplification, it is advantageous if stiffening beads (2a) have the same stiffening beads over their entire length as the reinforcing beads on the longitudinal edges of the rung cross-sections. se are designed to open out and preferably to- 6. Cable ladder according to one of the preceding claims, the same cross-sections over its entire length, characterized in that in the one 55 points. umbilical rungs (2), namely in the between the Stiffening corrugations (2a) located zones aerating platforms be possible in the bottom of the cable ladder processing holes (2b) are arranged. to provide transverse stiffening beads to their longitudinal extent, the latter before or after 60 the folding of sheet metal edge parts to form the Spars can be formed, only then would exist here the disadvantage that the beads only by elongation of the The invention relates to a cable tray for holding metal sheets with a simultaneous considerable reduction tion of electrical cables can be produced as an addition to the patent for sheet metal thickness in the area of the beads, 29 905. 65 while in the rung according to the invention the appropriate The cable ladder, the improvement of which with the invented beads maintains the original sheet metal thickness. The aim is to keep two of them parallel to each other and thus one significant with the same profile allelally arranged spars essentially higher flexural strength than in the fictitious described above