| 摘要 |
<p>This invention relates to solderless electrical connections, and is particularly concerned with insulationopening electrical connections and a tool for making a crimpedinsulation-opening electrical connection. Although prior insulation-opening connections provide a good electrical and mechanical connection, it has been found that in certain instances, a loosening effect of the connection may occur. This is particularly a problem with stranded conductors which undergo distortion during insertion and which have a clamping pressure applied thereto by the insulation-opening contact elements. The subsequent application of tensile forces, axially and/or transversely, to the conductors held by such pressure causes a relaxation type of deformation and strand movement and repositioning so as to effect a drop in connection pressure. Of course, this condition is highly undesirable and should be eliminated. According to the present invention, a tool is provided for inserting an insulated conductor into an insulating piercing portion of an electrical contact. The portion has an outwardly open notch for receiving a conductor transversely of the axis of the conductor and a wall portion adjacent the notch. The tool comprises a conductor insertion member for engaging and pressing an insulated conductor into the notch, and crimping means connected to the insertion member for engaging and crimping a section of the wall portion over the conductor and close at least a portion of the notch.</p> |
