DE2631094A1 - CONNECTING CLAMP FOR ELECTRIC CONDUCTORS - Google Patents

Description

PATENT Attorney Friedrich-Ebert-Str. 27

DIPL-ING. ROLF PÜRCKHAUER ^Postfa _n ^{ch 100928}

_9Π1Π0 ι D-5900 Siegen 1

ΔΌΟ I Un? H phone (0271) 331970

Telegram address: Patschub, Siegen

⁷ J ° ^{21 Kü / S} - "9 JUL11976

BICC Limited, 21 Bloomsbury Street, London WC1B 3QN, England

For this application, priority becomes from the UK patent application No. 30658/75 of July 22, 1975 claimed.

Connection clamp for electrical conductors

The invention relates to electrical connection terminals in which an electrical conductor in a conductor passage through a "Screw. That is clamped onto the conductor either directly or acts via an intermediate pressure piece? in particular relates the invention relates to connecting terminals that are suitable for a range of different conductor cross-sections.

If such a connecting terminal receives a conductor which is smaller than the largest to be received by it, the conductor can do not touch both side walls of the passage Cd.h. the walls extending in the same general arrangement as the screw), and - there is a risk that it will assume an asymmetrical position, if in some cases it is not properly caught by the screw.

The invention is based on the object of reducing this risk and to increase the area of conductors that can be received by a given size connector.

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According to the invention, an electrical connection terminal has a conductor passage through a floor, through side walls and a top wall is delimited (at least some of which can interlock), furthermore at least one pressure screw, which is screwed into the top wall to push a conductor into operative connection with the floor, as well as in the Conductor passage an auxiliary component which can be brought into engagement in several positions on the side walls, whereby it bridges the side walls in each position and forms an elongated recess which extends along the conductor passage and facing the ground in such a position that it has a conductor of corresponding cross-section in a position between the pressure screw and the bottom holds.

The auxiliary component is preferably sufficiently flexible. designed to be pushed in the direction of the screw or screws from one position to the other, but can on the other hand a rigid auxiliary component can also be used, which is in operative connection with grooves or other -ßrmschlüss. own facilities at the Side walls can be inserted.

If the auxiliary component preferably extends over the entire length of the conductor passage, then it has through-holes for the screw or screws. Usually will the or each through-hole has its axis on the center line of the elongated recess or in the vicinity of the same.

The auxiliary component is expediently made of plastic, e.g. polystyrene.

Preferably, a protrusion penetrating the insulation protrudes from the bottom of the conductor passage, such as for example a couple? sharp edges to enable use without separate exposure of the conductor surface * additionally or alternatively) the or each screw preferably has the insulation

§09886 / 0317

penetrating tip.

If a conductor is to be connected to another conductor at a point distant from either end, either the bottom or the top wall of the conductor passage, preferably the latter, formed separately and in a form-fitting Sliding connection brought to the side walls after the ladder has been inserted; preferably the interlocking form-flowing compounds, for example in the form of Dovetail guides, designed so that the impact of the conductor with a clamping pressure tends to remove the side walls to contract.

When in use, a conductor is inserted into the conductor passage, centered and temporarily in its position by operative connection between the bottom of the conductor passage and the recess held in the auxiliary component, which holds it in place against displacement until the screw or screws are brought into proper operative connection with it are.

A single conductor passage with at least two screws may be sufficient to make a through connection, but is the provision of two auxiliary components, one for each ladder, is desirable, as this is a satisfactory compound of dissimilar Ladders made possible. In other cases, two parallel conductors can be provided, each with its own screw or lead May have screws and their own auxiliary component, or some other type of connecting terminal arrangement for a second conductor are provided.

The invention will now be based on it, for example reproducing drawing described. It shows

Figure 1 is an end view of one embodiment of connector clip according to the invention,

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- 4 Fig. 2 is a side view of the same, while

3 is a perspective view of the auxiliary component reproduces which forms part of the connecting terminal.

The connecting terminal shown in the drawing corresponds in general to that of the associated British Patent application 57177/73 and contains a body 1, which has two parallel, upwardly open channels 2,3 is formed, each of which has a protrusion 4 penetrating the insulation in the ground. Closure components 5 are pushed into the body 1 in order to close the upper end of the respective channels or conductor passages 2, 3, and in two pressure screws 6 penetrating the conductor insulation are screwed into each closure component 5 (see FIG. 2).

The side walls 7 of the passages 2, 3 are each formed with a series of grooves B, and an auxiliary component 9 can be used in any of a corresponding number of positions, with ribs 10 on auxiliary component 9 in corresponding Pairs of grooves engage, and in each case the auxiliary component 9 bridges the conductor passage 2, 3. The auxiliary component 9 is like this shaped so that it forms an elongated recess 11, free of sharp edges, which forms the bottom of the conductor passage in question or 3 facing and flexible enough to be manually pushed down around the ladder after a ladder has been inserted to take between the surfaces of the recess 11 and the insulation penetrating formations 4 and it in a central To hold the position in the conductor passage until the screws 6 (which run with play through through-holes 12 in the auxiliary component 9) must be tightened. The auxiliary component 9 consists preferably made of polystyrene.

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Claims (5)

76 021 kü / s -9JULY1S76 patent claims 1. / Connection clamp for electrical conductors, with a Conductor passage, which is limited by a base, side walls and an upper wall, as well as with at least one pressure screw, which is screwed into the top wall to push a conductor into operative connection with the floor by an auxiliary component (9) in the conductor passage (2,3), the auxiliary component (9) in several positions with the side walls (7) is to be brought into operative connection, in each of these positions bridges the side walls (7) and forms an elongated recess (11) which extends along the conductor passage (2,3) extends and faces the ground in such a position that it has a conductor of corresponding cross-section in one position between the pressure screw (B) and the floor. 2. Connection terminal according to claim 1, characterized in that the auxiliary component (9) is sufficiently resilient, such that it can be pushed from one position to another in the direction of the screw or screws (B). 3. Connection terminal according to claim 1, characterized in that ' that the auxiliary component (9) is rigid and in a form-fitting operative connection can be pushed in with the side walls (7). 4. Connecting terminal according to one of claims 1 to 3, characterized in that the auxiliary component (9) is substantially Extends over the entire length of the conductor passage (2, 3) and has through bores (12) for the screw or screws (B). 609886/0317 -B- 5. Connecting terminal according to claim 4, characterized in that each through hole (12) for a screw (6) the center line of the elongated recess (11) or in the immediate vicinity thereof. ß. Connecting clamp according to one of Claims 1 to 5, characterized in that the auxiliary component (9) is made of plastic consists. 609836/0317 Blank page