A relief wire terminating system with particular regard to a strain relief means provided as an integral part of the system. At the rearward or termination portion of the system, side walls define a channel for receiving an insulated wire. At the rearmost extremity, a tab extends from the top of each wall at an angle, downward and inward into the space. The tabs terminate in edges defining a wire passing space between them, and below them, a wire restraining space. The tabs act on the wire to take up strain.
An electrical connector is disclosed having an insulation-opening contact member with at least one transversely displaceable sidewall that aligns itself parallel to both the opposing sidewall of the contact and the lateral surface of the mounting cavity of the connector. Insulation-opening protuberances extend inwardly from the displaceable sidewalls. The dielectric contact mount of the connector supports these protuberances and minimizes or prevents their lateral spreading during the connection operation.
In order to connect and couple a member to an insulated wire, a pressure connection terminal comprises a base, two side walls extending from the base, an electrically-connecting portion disposed at a first end portion of the terminal, a pressure connection blade which is disposed between the first and second end portions of the terminal and which is adapted to receive and strip off a corresponding insulating portion of the insulated wire, a first holder disposed near the second end portion for holding the insulated wire, and a second holder disposed between the first end portion and the pressure connection blade for holding the electric wire. Additionally, the pressure connection terminal further includes a first and second projections provided on the base respectively corresponding to the first and second holders, so as to secure the electric wire cooperatively therewith.
A terminal for assembling wires of different diameters, such as UBS or 1394 terminals. The terminal includes a base with piercing conductive pieces installed in the base. A buckling press is attached to the base and presses metal wires positioned so that conductive wires of different diameters in a predetermined range can be connected effectively.
An insulated conductor is terminated in an insulation-opening portion of an electrical contact and the contact jaws are crimped over the conductor to secure the conductor therein. A tool includes a pair of cutting edges and crimping surfaces for cutting and folding over sections of the contact jaws as the tool presses an insulated conductor into an insulation-opening notch formed by the contact jaws. The tool includes a forward end having a surface for engaging and pressing the conductor into the notch, the surface acting against the conductor as a stop to limit the depth of cut of the cutting edges. The tool may also be used after conductor insertion by other techniques to perform the crimping operation. The side surfaces of the tool slidingly engage the cut edges of the contact jaws and prevent an inward movement of the jaws during cutting and crimping. The resulting electrical connection is mechanically secure in that a normally open conductor-receiving channel is closed by the peeled over sections of the contact jaws thereby preventing outward movement of the conductor. The contact structure is of particular advantage where stranded wire is used in that the clamping action of the peeled over sections prevents relaxation distortions of the conductor which has become distorted during insertion and thus prevents pressure drop at the contact jaws which can result from relaxation distortion.
A contact element of the self-stripping type, bearing two slots (15) and (17) into which the wires are radially introduced, and an additional radial anchoring slot (19) in the form of an interrupted ring of which the sides are elastic, due to a resilient region (D), and comprise regions (A, B, C) for introducting, shaping and radially anchoring the wire.
