DE7029685U - PLIERS FOR STRIPPING PLASTIC INSULATED CORES. - Google Patents

Description

SIEMENS AKTIBNGBSELISCHAPT Munich 2, -S Wed 1970 Berlin and Münohen Wittelebacherplatz 2

70/6659

Pliers sun stripping of plastic-insulated wires

The innovation relates to a pair of pliers for stripping insulation from plastic-insulated wires, especially for communication cables and for wires with small wire dimensions of around 0.3, where the end of the wire to be stripped is between {5 two jaw surfaces of the jaws of the pliers clamped will.

When «Abiiöliorvii Tön jötuDvötöffiBOlierien veins occurs often the problem of ladder damage, which then the break of the · conductor · iur result. The veins should

but can be stripped without damaging the conductor. But the risk of damage to the ladder is greater, the smaller it is the dimensions of the ladder are.

The innovation is based on the task of a pair of pliers for stripping ron plastic-insulated wires, in particular for communication cables that allow stripping without damaging the conductor and also for small ones Conductor dimensions of about 0.3 mm is suitable.

20th

In a pair of pliers according to the innovation, this object is achieved in that the facing jaw surfaces the jaws of the pliers are covered with a resilient material that is facing the vein on its Surface formed with a friction surface with a high coefficient of friction to the plastic insulation of the core is. Such a pair of pliers enables the insulation to be stripped

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of cores without conductor damage, even with very small ones Dimensions of the ladder.

In a preferred embodiment of the innovation, rubber is used as the resilient material, for example in the form of inlaid rubber cushions. The friction surface is preferably made on the surface of the resilient material a silicon carbide paper.

It is also possible that the friction surface is on the surface

the resilient material made of a with certain that C Fillers that increase the coefficient of friction are added to plastic

consists.

Secondly, the surface pressure is limited

Stops are provided on the jaws of the pliers. For this purpose, a preferred embodiment of the hiring is designed in such a way that dsJ a clamping jaw of the pliers has two side webs as stops, between which in a recess the resilient material is added to the friction surface.

Accordingly, the width of the resilient material is then in the. Opposite stops other clamping jaws chosen to be approximately equal to the width of the recess of one clamping baokena.

* 25

Sin an exemplary embodiment of a pair of pliers after hiring is gT) V) _ff T> d of drawings described in more detail below.

In Fig. 1 is a parallel pliers 1 for stripping plastic-insulated cores, especially for communication cables and for cores with small conductor dimensions of about 0.3 mm. The pliers 1 has two clamping jaws 2, 3, between which facing each other Surfaces the end of the wire to be stripped clamped across the clamping jaws or in the direction of the clamping jaws

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will. In order to be able to strip the wire without damaging the conductor, the facing jaw surfaces are the jaws of the pliers with a resilient material occupied that on its surface facing the wire with a friction surface with a to the plastic insulation of the Vein is formed with a large coefficient of friction. The design of such jaw surfaces is in a preferred embodiment shown in more detail in Fig. 2 in an exploded perspective and in Fig. 3 when stripping a wire, The clamping plate of one clamping jaw 2 of the pliers is designated by 4 and is flat, while the clamping jaws 3 is configured with side webs 7 and 8 which are angled at right angles to the flat base surface 6 at their ends, between which a recess 9 is formed. On the underside 5 of the clamping plate 4 of a jaw 2 is just like in the opposite recess 9 of the other clamping jaws 3, the resilient material, preferably made of rubber, in the form of rubber cushions 10 and 11. The hardness and thickness of the rubber pads 10 and 11 are included adjusted accordingly to the surface pressure and the conductor dimensions. As a friction surface that is on the surface of the Rubber cushion 10, 11 is applied, here is a silicon carbide paper 12, 13 is used, which is glued to the rubber cushions 10, 11 and one for plastic insulation 17 the core 14 has a large coefficient of friction. The friction surface can also consist of a resilient material with a are made of certain plastics mixed with fillers that increase the coefficient of friction. Appropriately is at In this embodiment of the pliers, the width b of the one rubber pad 10 on the clamping plate 4 is approximately equal to the width B of the opposite recess. 9 of the other clamping jaw 3 is selected. Likewise, the height h is the one from the rubber cushion 10 and the friction surface 12 existing support approximately equal to that remaining after inserting the rubber cushion 11 Chosen height H of the recess 9 or slightly larger.

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Thus, when the clamping jaws 2 and 3 are pressed together, the rubber cushion 10 fits into the remaining space of the recess 9, so that in the compressed state with inserted, stripped wire H, the underside b of the clamping plate 4 rests on the surface of the side webs 7 and 8 provided on the clamping jaws 3, which thus ale stop for Serve limitation of the surface pressure. As can be seen in FIG. 3, when the core H is inserted, the insulation is stripped the wire has an indentation 15 or 16 on the supports 10, 12 and 11, 13 of the clamping jaws 2 and 3 due to the resilience of the rubber cushions. This will help when stripping the wire 14, i.e. in Fig. 3 when stripping the Wire insulation 17 in the direction of the wire prevents the conductor 18 from breaking off or the conductor notching. she

Friction between the rough one serving as the friction surface

Silicon Carbide Paper 12, 13 and the Aderisalie — nec 1 ** but is sufficiently large so that with a certain adjustable surface pressure the Aderieolierung 17 easily can be stripped off. Sir illustrated and described Stripping pliers are particularly useful for cores with small conductor dimensions of around 0.3 na »

8 protection claims
3 figures

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Claims (8)

ι · t. • l · «I S chut zans τ rt before Pliers for stripping, τΰη plastic-insulated wires, especially for communication cables and for veins mii; small conductor dimensions of about 0.3 mm, with the end of the wire to be stripped between two jaw surfaces the jaws of the pliers is clamped, characterized in that the facing jaw surfaces (4, 6) of the clamping jaws (2, 3) of the pliers (1) with a resilient material (10, 11) are occupied, the surface facing the wire (14) with a friction surface (12, 13) ** one to the plastic insulation (17) of the core (14) large coefficient of friction is formed. 2. Pliers according to claim 1, characterized by the use of rubber (10, 11) as a resilient Material. 3. Pliers according to claim 1 or 2, characterized in that the friction surface on the Surface of the resilient material (10, 11) from one Silicon Carbide Fapisr (12, 13) consists. \ 4. Pliers according to claim 3 »characterized in that the silicon carbide paper (12, 13) is glued onto the resilient material (10, 11). 5. Pliers according to one of claims 1 or 2, characterized in that the friction surface on the Surface of the resilient material (10, 11) made of a certain filler material that increases the coefficient of friction offset plastic. VPA 9/635/52 -6- 702968523.1170 »· ·· · t · f lit» · ι ■ lit · · -6- 6. Pliers according to one of the preceding claims, characterized in that for Limitation of the surface pressure stops on the clamping jaws (2, 3) of the pliers (1) are provided. 7. Pliers according to claim 6, characterized in that that a clamping jaw (3) of the pliers (1) has two side webs (7, 8) as stops, between which the resilient material (11) sat dsr Reibflä® (13) sits in a recess (9), 8. Pliers according to claim 7, characterized in that the width (b) of the resilient Material (10) in the stops (7, 8) opposite other clamping jaws (2) approximately equal to the Width (B) of the recess {<*} of the clamping bracket (3) is chosen. VPA 9/635/52 702968523.12.70