DE8610372U1 - Safety device for electrical connection and extension cables - Google Patents

Description

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The innovation relates to a device for securing the plugged-together coupling and plug electrical connection and extension cables.

Such loosely laid connection lines for electrical devices, such as hand lamps and hand tools in particular and the like, are very often subject to tensile loads in practical use. This is especially the case if the position of the electrical device is changed frequently or the electrical connection cable hangs freely over a certain distance. In the latter case, the dead weight of the electrical one is sufficient Connection cable off, in order to separate plug and coupling from each other when using an extension. Also at Retighten the electrical connection line with the

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electrical device, the clamping forces between the coupling and the plug are sufficient when using a Extension usually does not mean a separation from Safely avoid coupling and plug.

In practice, therefore, one looks for ways to be able to transmit greater tensile forces via the coupling point of extended electrical connection lines. Next to one. Wrapping of the plug and coupling with insulating tape is usually used to knot the cables to be connected in the coupling area '' §

in such a way that the |

Forces mainly act in the coupling direction. This results in a strong curvature or even kinking of the electrical lines in the area of the introduction into the plug and the coupling place, thus despite Damage to cable grommets cannot be avoided, especially electrical damage Compromise security.

The innovation is therefore based on the task of creating a safety device that has the Coupling and the plug can be placed at the coupling point of electrical lines and Clutch and plug in a plugged-together arrangement holds in such a way that the acting in the direction of separation Tensile forces are passed through the safety device.

To solve this problem, the coupling and the plug are used to hold the plugged together arrangement receiving hollow body with two opposite through-openings for the coupling and the connector connected cable, this

Hollow body transversely to the one connecting the feed-through openings

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Axis is divided into two half-shells, the walls of which .ι a continuous from the feed-through opening

Longitudinal slot have for the passage of the cables and the I \ via connecting elements in the axial direction

are coupled to each other.

The particular advantage of a safety device according to the innovation lies in the fact that the coupling and plug are located in the walls of the hollow body in a Can support arrangement in such a way that an unintentional separation does not occur. First the cables inserted through the longitudinal slots into the half-shells until they pass through the central passage opening are laid through, then the two half-shells are in the axial direction on the connector or the coupling is pushed on and by means of the connecting

\ elements are coupled together in such a way that plug and

Coupling are held together largely free of play in the axial direction. There are plug and coupling Fully embedded in the half-shells, so that they are also protected against mechanical influences by the Half-shells formed hollow bodies are protected.

In an advantageous embodiment, the half-shells are essentially hollow-cylindrical and have their own The outer end has a conical end section which tapers up to the end-side lead-through opening. The inside of the cylindrical section of the half-shells is attached to the outer circumference of the coupling or of the plug adapted to the electrical line, and the rear taper of the half-shells is used to provide a to form the rear support surface for the coupling or for the plug. It is particularly advantageous if the both half-shells can be connected to one another by means of a thread, so that when the plug is inserted and recorded coupling in mated

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04/04/1986

Arrangement, both half-shells can be screwed together until the plug and coupling are in an axial position Direction are fixed without play.

Further advantages of the innovation emerge from the description below. The innovation is as follows explained in more detail with reference to the drawing of an exemplary embodiment. Show:

Fig. 1

Fig. 2

a perspective view of a safety device to be placed on Electrical connection and extension cables connected to one another on the plug and coupling and

a longitudinal section through the securing device according to FIG recorded plug and coupling.

In detail, a hollow body 1 can be seen in FIG. 1, which can be assembled from two half-shells 2 and 3. Each of these half-shells 2, 3 consists of an essentially hollow-cylindrical section 4 with an open end face, which in the position of use faces the other half-shell 4, 3 , and a conical end section 5, which tapers to a Durohead opening 6. Furthermore, each half-shell 2, 3 has a longitudinal slot 7 running along a surface line, the width of which is adapted to an electrical cable to be passed through and which merges into the feed-through opening 6 at the end.

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In the area of the cylindrical section 4, one half-shell 2 has an internal thread 8 into which the other Half-shell 3 can be screwed in with a corresponding external thread, which is also in the area of the cylindrical portion 4 is located.

Figure 2 shows the entire safety device according to Figure 1 in the position of use, in the interior of the Hollow body 1 in a substantially coaxial alignment a coupling 1o and a plug 12 in a plugged together Arrangement recorded cind. The clutch 1o is with a electrical line 11 or an extension or Connection cable connected, which is on the opposite side of the coupling side of the coupling 1o with the usual Strain relief is introduced. In an analogous manner, the plug 12 is connected to a connecting cable 13, and the both cables 11 and 13 are through the opposite one another Through openings 6 of the two half-shells 2 and 3 forming the hollow body 1 to the outside led out. The placement of the hollow body 1 on the coupling 1o and the plug 12 in mated Arrangement takes place in such a way that the two half-shells 2, separated in the radial direction on the respective cable 11, be pushed, the cable 11, 13 passes through the longitudinal slot 7 until it reaches the end position in the Through opening 6 has reached. After that, the two half-shells 2, 3, which have their open end faces to the coupling 1o or to the plug 12 are aligned, shifted in the direction towards each other and including the coupling 1o and des Connector 12 are screwed together. The screw length is sufficient,.-I the inner wall in the Area of the conical end section 5 of the half-shells 2, to rest on the coupling 1o and the plug 12 bring, whereby these are fixed in the coupled arrangement relative to each other in the axial direction.

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Due to the conical design of the hollow end sections of the half-shells 2, 3 there is an automatic Centering the coupling 1o and the plug 12 in the composite hollow body 1 instead, so that a kink of the cables 11, 13 in the interior of the hollow body is excluded.

Claims (5)

■ rs * β · »ft ■ • ft ·» · · ne PATENTANWÄLTE. ί. : ..:: ..: ί: r .:: ..: gap ^ hbaumer strasse so PIPL, -ING. BODO THIELKING POST CHECK ACCOUNT HAN 3O91 93-3Ο2 LAWYERS FILES: 3029 datum O4.O4.1S86 Protection claims: 1. Performing the securing of plugged together Coupling and plug of electrical connection and extension cables, characterized by the coupling (1o) and the plug (12) in a plugged together arrangement holding hollow body (1) with two opposite feed-through openings (6) for the, nit _rer coupling (1o) and the plug (12) connected cable (11, 13), the hollow body (1) is divided transversely to the axis connecting the feed-through opening (6) into two half-shells (2, 3), the Walls one from the lead-through opening (6) continuous longitudinal slot (7) for the passage of the cables (11, 13) and the connecting elements (8, 9) can be coupled to one another in the axial direction. 2. Device according to claim I, characterized in that the half-shells (2, 3) have an essentially hollow-cylindrical section (4) and towards their outer ends an end section (5) tapering up to the feed-through opening (6) to have. 3. Device according to claim 2, characterized in that «I the end section (5) the half-shells (2, 3) tapers conically. 2: 3029 • re 1 ■ ■ · ■ ■ · ■ ■ at · r · 1 · · · _ 9 - 04/04/1986 4. Device according to one of claims 1 to 3, characterized in that the half-shells (2, 3) are adjustable to one another in the axial direction by means of the connecting elements (8, 9). 5. Apparatus according to claim 4, characterized in that the connecting elements (8, 9) consist of an external thread on the a half-shell (3) and a corresponding internal thread of the other half-shell (2).