FI96727B - Fastening tape for electric cables - Google Patents

Abstract

The invention relates to a fastening tape for cables. The tape contains adhesive surfaces, protected by detachable paper 1, 4, for fastening this paper to its base and for fastening the cable thereon. The tape can also contain a line wire 2. <IMAGE>

Description

96727 Fastening tape for electric cables.

In the work of an electrician, the biggest, most tedious and heaviest work step is to fix the cables to the wall and ceiling surfaces, when the installation is done in the so-called surface-mounting. In this case, the cables remain permanently visible, so the aesthetic requirements of the installation are high. The cables that are visible are always installed directly, in which case they are e.g.

10 stand out from their background in the least disturbing way. The various clamps and fasteners used for fastening are always factors that erode the installation, as they must be present in the cable at 15 ... 20 cm intervals so that the cable does not look droopy. The clamps take up their own space and therefore 15 cables cannot be installed together as a neat "cable mat".

Holes must be made in concrete, brick, block and similar, often plastered walls by propelling, to which the cable fasteners are then screwed or nailed by means of props. Especially the props on the ceilings is a heavy and long-term · ... 'work on the installer's neck and elves. Propulsion The constant hard vibration associated with the work results in • · «· ·· * joint stresses on the installer's fingers, wrists and upper arm * 25. Use of heavy hammer drills and their extension cords In addition, there is very accident-prone work because often: working on high scaffolds.

• · · • · ·

A particularly big disadvantage is the dust and other • · · · »· · 30 * generated in propate. garbage. Especially when red brick is promoted, ·· · · · ♦: V red dust is very sticky and spreads over large • · · · · ·: ... · · * ·: areas. The generation and spread of dust is impossible when propagated. ···. ’, .. · effectively prevent. Installers have to use eye,. ·. ; . hearing and dust respirators, which in turn • * · · · · .35. make it difficult to work. Especially if cable installations have to be made in pre-painted and wallpapered rooms and, for example, in offices, food, clothing, etc., the 2 96727 dust nuisance is particularly great.

There is also a high risk of vibration for wall structures. Thin walls do not want to withstand vibration, they break, there will be hair cracks 5 or plaster splits. Patching and painting are often required. If the wall material is inhomogeneous, there is a high risk that the prop hole will slip aside from the intended location into one of the cavities and the hole will become too large, so that the prop will no longer stick to its hole.

10 At the same time, a bend appears in the fastening row, which is immediately visible in the cable with a bend. It is also easy to propagate to the wires and pipes already inside the wall, which means that the repair costs become unreasonably high. Often the reinforcing steel also becomes an obstacle and the hard piece of the propling blade breaks down.

1 5

In many cases, the cables also have to be attached to steel beams and plates. Either threaded holes, welded fasteners or auxiliary fasteners firing with an explosive charge must be used as an aid. The above methods cannot be used in 20 stores, offices or other similar premises in continuous use. Sometimes cables should be attached to glassy surfaces, such as facade glass. In this case, making threaded holes in the fasteners is hopeless and '' ** ·. you have to make long turns with the cables.

25 *.

Usually cables also have to be installed on tiled surfaces. Yes, holes are created in the tile for i · · · "'props, but it is common for at least some: the tiles to break because the base of the tile is not straight * ·· ·« 30: and flat. Replacing broken tiles is a major task.

• · · · V · Today, a lot of so-called

: ·: * .. I ·: · Gyproc or gypsum board. The cables and electrical circuits J * · * · «...... # cannot be attached to this plate except by special methods. For example, the so-called the nail clip does not stick to this plate «44 4 at all.

• · · · · • · • · •

Known adhesive fastening methods are also deficient.

They only secure the cables at certain points at points 3 96727 and the cables will not be installed directly and will not stay straight because they are not attached to the base and supported all the way. Since the known adhesive fasteners are made of metal or hard plastic, they also take up space on the sides of the cable and are therefore necessary to keep the cable straight, and since the fastening principle is to press the cable into place only uses.

10

The structure of the fastening tape is as follows:

Between the two specially treated protective papers there is an elongated 15 flexible and flexible pad-like strip made of cellular plastic or the like with an otherwise rectangular cross-section. adhesive pad 3, but its top is made concave (semicircular) and only the sides and underside are smooth. Both the underside and the concave upper side of the pad are coated with self-adhesive and the adhesive is separated from 20 air contact with the backing paper 1 and the concave cover paper 4. Between the pad 3 and the backing paper 4 is one or: · ': two 1 ... 5 mm wide line yarns 2 the wire or ribbon is; Y; between and / or under the adhesive, between the pad 3 and the adhesive.

·· ', Paperless surfaces are not adhesive. The structure is: Fig. 1, Fig. 2 and Fig. 3, Fig. 3 shows the so-called

* t ”! double-sided pillow.

• 1 * 1 "

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• «·« Il · * • «· '' Using the fastening tape: • ·« m '\' t 30: Tighten the fastening tape with Iinjalara 2 straight against the ceiling • · «· I« · 'or wall surface by removing the backing paper 1 tape * * * · I *. * From the beginning of a few cm and pressing the tape • · · · * * · f? . ···. sticky head first to the wall. The same is done, at the other end of the tape. The end of the paper left against the wall; ; 35; the ribbon is then torn off in the direction of the line yarn.

'Observe at all times that the line thread is taut and that the adhesive pad fastening tape 3 is pressed against the wall or ceiling surface all the way. Next, the top 4 96727 paper tape 4 is removed. Finally, the cable is pressed onto the label pad, following closely the semi-circular groove below it. This keeps the cable in a straight position and attaches to its base all the way. The design of the cushion increases the stay of 5 cables.

The cable adheres well to all clean substrates. The tape according to the invention does not compress the cable, so the cable can also be damaged. Because the cable is attached 10 evenly and well to its base, separate strain relief devices are often not required. In fact, it is possible to use the strip, for example in shorter parts, as a strain relief device itself, for example in flush-mounted installations.

It is also possible to detach the tape according to the invention from its base and reattach it. The line thread is a good help here. Thanks to the flexibility of the tape, it can overcome obstacles such as another cable. If the protective paper is left in place on the ribbon of the crossing cable, the cable 20 crossing will not catch on the cable to be crossed.

: It is possible to attach the tape according to the invention to the cable. In advance at the installation site or even at the Cable Factory, ::: * ··. in which case only attachment to the substrate at the object itself is required.

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Claims (6)

96727 A fastening tape for cables and the like, characterized in that it has a gripping surface for fastening to the base 5 and also a gripping surface for fastening the cable. Tape according to claim 1, characterized in that the tape also includes a line wire or tape (2) to facilitate installation. 10 Tape according to Claim 1, characterized in that the adhesive surfaces consist of adhesive surfaces covered by removable protective papers (1, 4). Tape according to one of the preceding claims, characterized in that the material of the tape is cellular plastic or the like. Tape according to one of the preceding claims, characterized in that the tape has a flat surface for fastening to the substrate and a concave surface for fastening the cable. Tape according to one of the preceding claims, 2-5 ·, characterized in that the tape has two concave surfaces * \ for fastening the cable to its two sides. ··· i '* · · ►:. »K · · •» »t * • t ♦» * • · * ··· · · · · · t *! • · · .. i i I t · · * • I> • j:: M I i • · · • · * • · »··· * · * J: I * * t I 1 I * · * 4 I · · «« »t« 96727