BAND-SHAPED DEVICE FOR FORMING A PIPE-SHAPED PROTECTION COVER

Abstract: Band-shaped device for forming a pipe-shaped protection cover for telephone and electrical cables etc. The purpose of the present invention is to improve known devices to facilitate the manufacturing, the selling and the installation. This task is solved according to the present invention by providing at least one of the surfaces of a band (1) with angular grooves (2, 3, 4) whose apices are located near the opposite surface of the band (1) and whose opposite sides extend above the surface of said one side, locking means (5, 6) cooperating with each other being provided at the longitudinal edges of the band (1), the angular grooves (2, 3, 4) extending in parallel with the side edges of the band (1).

Description: E-S PED * DE IC * FOR FORMING A PIPE-SHAPED PROTECTI C . FIELD OF THE INVENTION The present invention relates to a band-shaped device for forming a pipe-shaped protection cover for telephone and electrical cables etc. DESCRIPTION OF PRIOR ART Previously known devices for forming a cover for electrical cables and the like have for different reasons not given rise to any need on the 5 industrial market for which reason they are difficult to obtain if not completely impossible to have at hand. One of the main reasons is that the known constructions are difficult to manufacture and thus involve high production costs resulting in a high selling price. Furthermore, many known constructions intervene in existing installations which in 10 turn implies high installation costs and frequently demands th-at the installation is carried out by a professional. These factors also give rise to a high expense level for the known products. SUMMARY OF THE INVENTION One object of the present invention is to improve known devices so that they will be cheaper to. manufacture and distribute and simpler to 15 install. According to the present invention these problems are solved by means of the device mentioned in the introduction by the fact that at least one surface of a band is provided with angular grooves, whose appices are placed near the opposite side of the band and whose opposite edges 20 extend above the surface of said one surface, and that locking means, intended to cooperate with each other, are provided at the longitudi- . nal side edges of the band, the angular grooves extending in parallel with the side edges. The present invention enables manufacturing by means of extrusion of 25 a suitable plastic material in a simple tool. Furthermore, the sale of the product in a very simple package is rendered possible, since the profiling of one side of the band renders the manufacture band possible in a soft material without waving the high demands for stiffness of the ready-made cover. The design of the arrangement accor ding to the present invention also renders a very simple application o it possible in existing installations for example on top of an existin skirting or the like. BRIEF DESCRIPTION OF THE DRAWINGS Fig.1 shows in a large scale a side view of one embodiment of a device according to the present invention. Fig 2.shows a side view of the de¬ vice shown in Fig. 1 after forming a cover by means of the same. Fig. 3 shows a schematic perspective view of an installation with a device according to Figs. 1 and 2. The device shown in the drawings according to the present invention is manufactured as a band 1 (Fig. 1), whose one surface is plain and whose other surface is profiled and has three angular grooves 2, 3, 4 and a male-shaped snap-lock element 5 at one of the edges and a female-shaped snap-lock element 6 at the other surface edge. Each apex of the angu¬ lar grooves 2, 3 and 4 is located near the plainsθtface of the band 1 since the band is made of a soft plastic material the material part at the apex can be considered to form a thin hinge mounting. The sides of the angular grooves 2, 3 and 4 extend above the surface of the mentione other surface of the band 1 and form elevations on each side of the angular grooves 2, 3 and 4. In the present embodiment of the invention, the angle between the sides in the angular grooves 2, 3 and 4 is approximately 90 . The male-shaped snap-lock element 5 has a conventional design and is placed a little bit inside the slightly bevelled side edge of the band 1 while the female-shaped snap-lock element 6 is arranged in the other side edge of the band 1. It will furthermore be pointed out that the angular grooves 2, 3 and 4 extend in parallel with the longitudinal side edges of the band 1. In order to form a pipe-shaped protection cover of the device as described above according to the present invention, the band 1 is folded for closing the angular grooves 2, 3 and 4 as will be described more in detail in Fig. 2 and the male-shaped snap-lock element 5 is snapped into the female-shaped shap-lock element 6. As it appears from Fig. 2, the sides in the angular grooves 2, 3 and 4 will almost be in contact with each other resulting in that the elevations on each side of the angular grooves 2, 3 and 4 will have a stiffening effect on the pipe-shaped protection cover shown in Figs. 2 and 3. In Fig. 3 a cover according to the present invention is shown applied on a skirting * 7. As it appears from Fig. 2, a square and pipe-shaped protection cover is formed and as it appears from Fig. 3, one of the side surfaces is placed on the upper side of the skirting 7 and can be fastened to the skirting 7 by means of some suitable fastening means, for example glue, staples, nails or the like. In the cover fastened on the skirting 7 electrical cables, telephone cables or the like can be placed and by slitting the cover 1 by means of a knife, an outlet for an electrical cable can be placed anywhere along the skirting. A cover according to the present invention can be opened any time after its closing and it is very easy to make changes in the placing of electrical cables and telephone cables without the changes causing any ugly marks in the installation. As it appears from Fig.2, the side edge of the band placed outside the male-shaped snap-Lock element 5 will form a grip. The grip facilitates opening and closing the cover according to the present invention. Furthermore, it will be pointed out that the location shown in Fig. 3 is not necessary but anyone of the plain side surfaces of the cover can be placed against the skirting 7. The band 1 according to the present invention is extremely simple to manufacture of a suitable plastic material by extrusion in a very simple tool. The plastic material can be chosen so that the ready-made band 1 will be soft and can be reeled and sold in coils resulting in that the packages will be extremely simple and cheap. The design of the OMPI angular grooves 2, 3 and 4 makes the mounted cover according to Figs. 2 and 3 extremely -stiff and permanent in shape in spite of the fact tha it is made of a soft plastic material. It is an extremely great advanta to be able to reel the band according to the present invention and to sell it in coils of a determined length or in coils intended to be in arbitrary lengths. __ O Λ. W

Claims: WHAT WE CLAIM IS : 1 A band-shaped device for forming a pipe-shaped protection cover for telephone cables, electrical cables etc, characterized in that at least one of the surfaces of a band (1) is provided with angular grooves ( 2, 3, 4) the apices of which are located near the opposite side of the band CD and the opposite sides of which extend above the surface of said one surface, and that locking means (5, 6) intended for cooperation with each other are provided at the longitudinal side edges of the band (1), the angular grooves (2,3,4) extending in parallel with the side edges of the band (1). 2 An arrangement according to claim 1, characterized in that the size of the angle between the sides in the angular grooves (2, 3, 4) is chosen in such a way that the sides mainly are in contact with each other when the locking means (5, 6) engage each other. 3 An arrangement according to claim 1, characterized in that- the snap-lock elements are male-shaped (5) and female-shaped (6) t , the female-shaped snap-lock element (6) being a groove extending along one of the side edges of the band (1) and the male-shaped snap-lock element ( 5) being an abutting part extending inside the opposite side edge of the band (1) for forming a gripping edge. 4 An arrangement according to the previous claims, characterized in that the number of angular grooves (2, 3, 4) is three and that the engagement between the locking means ( 5, 6 ) forms a cover with a square cross section. 5 An arrangement according to claim 4, characterized in that the angle between the sides in the angular grooves (2, 3, 4) is about 90 .

Inventors: HOLGERSSON S
Applicants: ERICSSON TELEFON AB L M, HOLGERSSON S
Application year: 1980
Main classification: H02G3
IPC codes: H02G3