Device for making an electrically conductive contact to an insulated cable lead
First Claim
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1. A device for making an electrically conductive contact to one or more insulated cable leads, comprising:
- (a) a holder for the or each of the cable leads which is to be contacted;
(b) an electrically conductive perforation needle for the or each of the cable leads which is to be contacted, for penetrating the insulating jacket of the or each of the leads, wherein the or each perforation needle is guided in a generally elongate housing, one end of which comprises the holder for the cable lead, and is loaded by a biasing means in the direction of penetration into the insulating jacket of the cable lead; and
(c) a substantially hollow cylindrical pressing element which can be moved relative to the housing and relative to the perforation needle which is loaded by a further biasing means in the direction of pressing into the cable lead, wherein the or each perforation needle and the or each pressing element is guided in the housing and is loaded by the biasing means in such a manner that, upon releasing these parts of the device in the direction of the or each inserted cable lead, first the or each pressing element, and thereafter the or each perforation needle is moved in the direction of forward thrust.
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Abstract
A device for making an electrically conductive contact to an insulated cable lead, comprising a holder for the cable lead which is to be contacted, and an electrically conductive perforation needle for penetrating the insulating jacket of the lead. In a preferred embodiment an indicator unit shows when successful contact has been made. The device allows contact to be made to an existing cable lead without cutting that cable lead. It also causes minimal damage to the insulation of the existing cable.
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Citations
16 Claims
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1. A device for making an electrically conductive contact to one or more insulated cable leads, comprising:
- (a) a holder for the or each of the cable leads which is to be contacted;
(b) an electrically conductive perforation needle for the or each of the cable leads which is to be contacted, for penetrating the insulating jacket of the or each of the leads, wherein the or each perforation needle is guided in a generally elongate housing, one end of which comprises the holder for the cable lead, and is loaded by a biasing means in the direction of penetration into the insulating jacket of the cable lead; and
(c) a substantially hollow cylindrical pressing element which can be moved relative to the housing and relative to the perforation needle which is loaded by a further biasing means in the direction of pressing into the cable lead, wherein the or each perforation needle and the or each pressing element is guided in the housing and is loaded by the biasing means in such a manner that, upon releasing these parts of the device in the direction of the or each inserted cable lead, first the or each pressing element, and thereafter the or each perforation needle is moved in the direction of forward thrust. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
- (a) a holder for the or each of the cable leads which is to be contacted;
- 10. A device for making an electrically conductive contact to one or more insulated cable leads, comprising (a) a holder for the or each of the cable leads which is to be contacted and (b) an electrically conductive perforation needle for the or each of the cable leads which is to contacted, for penetrating the insulating jacket of the or each of the leads, wherein the or each perforation needle is guided in a generally elongate housing, one end of which comprises the holder for the cable lead, wherein the housing is provided, at the end thereof remote from the holder with radially compressible parts the actuation of which effect axial displacement of a plunger which carries the or each perforation needle and of one or more pressing elements surrounding the plunger, in the direction of the cable lead which is to be acted upon.
Specification