DE7209076U - Device for exposing the conductors of an electrical cable - Google Patents

Description

GII-Go 5 2 CiIrich / Switzerland
Schaffhauserstr. 58o

Utility model registration Device for exposing the line artery of a

electrical cable

The present invention is a device for Exposing the wire cores with a rubber-elastic Protective sheathed electrical cable on a connection probe of the same.

To make the wire connections of cables to plugs or power consumption devices, the line wires should be on a great stretch of ground. After manufacture these connections should, however, be the protective sheath of the cable Lead wires back into the connector or Cover the Gorlitegchliuse.

For connecting two cable ends or. to connect a Ka'bolondcs to a plug or to a device using of cables provided with a metallic protective jacket that tightly encloses the cable core is already have been proposed, e.g. that of annealed ileinaluminium existing cable sheath at the free end first by driving in a hollow cone with the cable sheath underneath

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Exceeding the material elasticity to expand and from the cable core, and then with the help of suitable devices in a coaxial to the cable from the connection end rearwardly directed U-shaped cuff to be reshaped, so with the free edge of this cuff then an outer protective tube made of the same material without damaging the cable cores or /. from their isolators. can be welded. The everted sleeves of the metallic cable sheathing therefore do not ground again receded, but remain permanently at the connection end. Corresponding methods and devices are from the DAS 1 115 284 and 1 157 285 known. However, these known methods and devices are not suitable for turning inside out of rubber-elastic protective cable sheaths on the Kaloel connection ends, v / eil immediately after turning it inside out rubber-elastic jacket, the everted edge under the effect of its elasticity is accordingly fed up with the not yet turned inside out and it is practical afterwards because of the flexibility of the material and the great friction it is impossible to lengthen the sleeve, which is still too short, by applying axial pressure to the bending point. On the other hand is it is difficult and time-consuming, on the turned-over edge of the jacket To apply pliers or clamps to the desired eversion over a relatively large length by axial pull to achieve the detected mantle edge.

The object of the present invention is, with the aid of a novel shaping principle and a corresponding device the desired, reversible eversion of a rubber-elastic protective jacket to a simpler, time-saving one Kind, if necessary using a simple and easily manageable auxiliary device that applies the forces.

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To solve this problem, a device of the type mentioned at the outset is proposed, which is characterized in that that a sum driving under the elastic cable protection jacket formed push-in sleeve at the front end with the front edge a funnel-like, flexible structure is in connection, which rests on the outer jacket of the sleeve and otherwise is not connected to the sleeve, and that the other, the sleeve at a distance surrounding the edge of the flexible, A funnel-shaped structure for receiving everting forces exerted along the cable in the direction of the front edge is trained.

The inventive principle and exemplary embodiments of Apparatus are shown in the drawings. Show it:

Pig. 1-3 three stages of turning inside out with the inventive Contraption;

Pig. Figure 4 is a side view sectioned along line IV-IV of Pig. 5, one according to the invention Contraption;

Pig. Figure 5 is a top plan view of the device looking in the direction of arrows V-V of Pig. 4?

Pig. 6 shows a front view of another exemplary embodiment of a device according to the invention;

Pig. 7 shows an axial section along section line VII-VII of Pig. 6, in the end position.

In the drawing is a Loitungsadernbündol with 11 and with 12 a cable protection jacket that fully envelops this bundle of cables, consisting of a rubber-elastic hose,

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designated. The whole pot is labeled Io.

Let it be assumed that the cable bundle 11 has been exposed at a connection end intended for connection to a connector or to a device by cutting away a part of the protective cable jacket 12 to a length Ia ₁ , as can be seen in FIG. This length Ia ₁ is kept relatively short so that after the connections to the connector pins have been made, the K- is

10 as close as possible to the connector with an effective protective sheath 12 remains wrapped. To make the Adexn connections on the plug, however, it is necessary to attach the wire bundle to a to expose greater length. For this purpose, the edge of the protective cable jacket at the connection end should be over a distance be turned inside out by a few cm and later pushed back into the uninverted state.

For this purpose, in the context of the present invention, a cylindrical push-in sleeve 2o, at the front end 21 the one ends of flexible cords or bands 3o are attached, according to FIG. 2 between the line wire bundle

11 and the protective cable jacket 12 are pushed into it. The flexible organs only stand at their front ends the sleeve 2o in operative connection and form an approximately funnel-shaped, egg-shaped flexible structure that loosens the sleeve mairfcel surrounds. The other ends of the flexible cords or straps 3o are provided with a retaining ring 31 designed as a handle member. which surrounds the sleeve jacket 2o with .Abstand connected. That A funnel-shaped structure could also be combined with a closed one Triclvberinantel made of flexible material instead be formed with adjacent ribbons or cords.

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Goma.oa Fig. 3 can be caused by the action of a correspondingly directed impact or tensile force on the retaining ring 31 of the device described, that the flexible bands 3o, or the funnel-shaped G-ebilde by the bevel imposed on it η Everting along the cable jacket 12, turn the hand over, the bending point of the bands 3o always follows the bending parts of the cable jacket 12. By moving the retaining ring 31 and the sleeve 2o back, the device can be removed from the cable 1o again. In order to produce the connection connections, the line wire bundle 11 is exposed _{to a length l n2 which has been increased by the everted section 1.}

According to FIGS. 4 and 5, bands 3o form a wedge-shaped profiled hollow cone front ring 32 and a retaining ring 31 at the other end together a one-piece, flexible, funnel-shaped G-e picture, z.I. as a plastic casting or compact can be produced.

An angularly profiled inner recess of the front ring 32 allows the insertion of the front end of a cylinder sleeve 2o serving as a push-in sleeve, preferably one Metal pipe, "or the named inner recess of the front ring 32 forms a seat for the front end of the metal sleeve 2o.

6 and 7, a head part 2 of a push-in sleeve 2o is clamped in a stationary machine part 23. Hit the front end of the sleeve 2o are one ends of Bäncorn 3ο ¹ connected, the other ends of which are fastened in slots of a • "." Lterin ^ es 31 '.

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Two slide rods 24 are machine part 23 parallel to the axial direction of the sleeve 2o, for example with the help of pneumatic or hydraulic actuating devices. These slide rods 24 are screwed to a ring 25 at one end and to a slide ring 26 at the other ends. The slide ring 26 contains a recess which forms a seat to act on the retaining ring 31 'for the flexible straps 3ο ^{1 of} the everting device.

The one in the Pig. 6 and 7 can be used as follows:

In Pig. 7, the starting positions of the sliding ring 26 and the retaining ring 31 'of the flexible belts 3ο ^{1 are} shown in dash-dotted lines. In this initial position of the parts mentioned, the front end of the sleeve 2o, to which the straps 3o 'are attached and on the outside of the sleeve run approximately stretched to the retaining ring 31', protrudes over the retaining ring 31 ″ mentioned 1 inserted the exposed core 11 of a cable 1o into the sleeve 2o. By pushing the cable 1o further, the sleeve and the straps 3o ^f attached to it penetrate between the rubber-elastic cable jacket 12 and the cable core 11, so that the situation according to Pig. 2. Afterwards, preferably pneumatically or in some other way by machine, the slide rods 24 and the rings 25 and 26 are displaced in the direction of the arrow P relative to the held cable 1o ¹ according to Pig. 3 shifted into the drawn end position with the cable jacket 12 being turned inside out, and then the cable 1o can be pulled out of the sleeve 2.

Expectations/

Claims (3)

■■■■■ :: - ·:.> Γ ,; Protection claims 1. Device for exposing the wires of a with a rubber-elastic protective jacket encased electrical Cable at a connection end of the cable, characterized in that one for driving under the elastic Cable protection jacket (12) formed push-in sleeve (2o) at the front end with the front edge (32) of a tricliter jacket-like, flexible structure (3o, 31, 32) is connected, which rests on the outer jacket of the sleeve (2o) and is in the rest is not connected to the sleeve and that the other, the sleeve (2o) at a distance surrounding the edge (31) of the flexible, funnel-shaped structure for absorbing eversion forces exerted along the cable in the direction of the front edge is trained. 2. Apparatus according to claim 1, characterized in that the Triehtermanteiförmige, flexible structure made of flexible Bands (3o, 3o ') and a closed, with the bands firmly connected, wedge-shaped profiled front ring (32), the inside one Contains ring recess for receiving the front edge of the sleeve (2o). 3. Device according to one of the preceding claims, characterized in that the flexible funnel-shaped Structure on its other edge surrounding the sleeve shell (2o) at a distance with a handle member (31 »31 ') formed ring is connected. -8th- -3- ή. Device according to one of the preceding claims, characterized in that a sliding ring (26) on a mechanically operated slide (24, 25) has a holding seat for the flexible structure forming the funnel-shaped structure, which serves as a gripping member (31 ') Belts (3ο ¹ ) up / down. The patent applicant / old