DE1052492B - Stripping tool for electrical lines and cables - Google Patents

Description

GERMAN

The invention relates to a stripping tool which allows the outer z. B. off Separate existing plastic insulation jacket quickly and safely from the underlying conductor. In particular, it is also useful for lines and cables of this type, the surface of which is due to the twisting is uneven.

It is known to pull off the insulation with wire strippers if the wires are not too thick. With a larger diameter of the lines or cables with thicker insulation layers, this can be done Forcible cutting can only be carried out after the insulating jacket has been slit open. Included But care must be taken to adhere to the depth of cut, as the conductor underneath does not may be injured and yet a complete stripping with one cut must be guaranteed. Slitting such lines by hand with razor blades is particularly useful in the case of harder insulation material difficult and dangerous and easily leads to injuries. There are already devices with adjustable cutting depth of the slitting knife known, in which the line piece to be stripped like pliers and the outer jacket is slit by a pulling movement of the device or the cable can be. In devices of this type, hard and tough insulation layers are particularly important the line or the cable exposed to considerable tensile stresses. This is particularly important with sensitive fine-stranded cables noticeably disadvantageous. In addition, it is during the stripping of longer pipe sections by means of this known device a time-consuming repeated gripping necessary.

Furthermore, stripping tools have become known that are more or less strongly trained Have guide rails. Such guide rails in their entire length during the cutting process be pressed firmly onto the cable. Due to the occurring on these guide rails Friction makes the cutting process much more difficult. This has a particularly detrimental effect Lines and cables whose surfaces are uneven due to the twisting.

A cable slitter has also become known in which the friction between the guide elements and the cable is reduced by the use of guide rollers, but the cable to be stripped is grasped by this tool like pliers and is thus exposed to considerable tensile stress during the cutting process. This known tool is therefore not suitable for use with sensitive fine-wire cables. As a result of the sleeve-like design of the known tool stripping tool
for electrical lines and cables

Applicant:

Pintscu Electro GmbH,
Constance, Bücklestr. 3

Friedrich Schweiss and Günther Schmid ₁ Constance,
have been named as inventors

this must be pushed on at a free end of the cable, if you do not use the annoying and time-consuming Solution of the end connections wants to accept. A simple and quick stripping of pipe sections, the ends of which are already firmly connected is not possible with the known tool. In contrast, the tool according to the invention enables extremely quick and convenient dismantling any line points without the lines being exposed to tensile stresses. With the same security and ease is the stripping tool according to the invention also for Use cables with twisted sheath.

Leadership roles

The stripping tool with

consists according to the invention of a handle-shaped curved housing running on rollers like a carriage, in which a pair of rollers is provided with grooves into which an adjustable cutting knife protrudes and slits open the jacket of a line preferably resting on a solid base when it is rolled over.

In Figs. 1 to 3, an embodiment of the device according to the invention is shown for example. In the

Fig. 1 is the device in its overall view and in the

Fig. 2 and 3 the actual cutting device separately and for the sake of a better overview, contrary the ready-to-use condition, unfolded recorded.

In Fig. 1, 1 is the handle-shaped curved housing of the device, which by means of the sliding rollers 2 as well as the guide rollers 3, which guide the cutting device (only the cutting knife 4 shown here) over the line resting on a solid base, in is pulled in the direction of the arrow over the section of cable to be stripped. That

809 769/402

Claims (4)

Housing 1 is preferably made solid so that its own weight contributes to the required cutting pressure. One end of the housing is fork-shaped and serves to accommodate the actual cutting device, which will be explained in more detail with reference to FIGS. As can be seen from the side view according to Fig. 3, the knife carrier 5 is pivoted from the housing 1 around the bolt 6 and is folded in the direction of the arrow in the ready-to-use state so that the bores are aligned and a retaining pin guided through them supports the knife carrier holds on. This fold-out version is particularly useful for replacing the cutting knife 4, which is shown here by a razor blade. The knife carrier 5, which is shown in its side view in Fig. 3, consists, as can be seen more clearly in the front view of Fig. 2, of two uniformly formed individual parts, between which the cutting knife 4 is clamped and by the bolts 8, 9 and 10 is held. These two sections are in turn held together by bolts 6 and 11. The knife carrier 5 has circular cutouts in its front part, into which the guide rollers 3 are fitted. The cutting knife 4 thus comes to lie between the guide rollers 3 and protrudes with its front cutting edge into the recesses 12 of the guide rollers 3. The width of these grooves depends on the thickness of the line to be stripped and is used to accommodate the same. The guide rollers 3 are interchangeable and are each replaced by recesses adapted to the thickness of the line. In Fig. 3 the front guide roller has been omitted for the sake of clarity. The cutting depth is set using two grub screws 13, which press the bearing 9, 10 of the blade 4 via the bolt 8 in an adjustable manner. Patent claims: 1. Stripping tool for electrical lines and cables with guide rollers, characterized by a handle-shaped curved housing (1) running like a carriage on rollers, in which a pair of rollers (3) is provided with grooves (12) into which an adjustable cutting knife (4) protrudes and slits open the jacket of a line preferably resting on a solid base when it is rolled over. 2. Stripping tool according to claim 1, characterized in that the cutting depth of the cutting knife (4) is adjustable with the aid of the grub screws (13). 3. Stripping tool according to claim 1, characterized in that the guide rollers (3) are arranged interchangeably. 4. Stripping tool according to claim 1 to 3, characterized in that the knife carrier (5) from the housing (1) is arranged to be folded out. Considered publications:
British Patent No. 704,488;
U.S. Patent Nos. 2,385,368, 2,616,172. 1 sheet of drawings © 80s 76w402 3.59 '