Abstract: The invention relates to a method for producing a conductive contact part for a detachable electric plug-in connection. Said method provides a contact element comprising a bushing part, sections of which contain longitudinal slits and which has ribs distributed around its periphery. A sleeve part, which can surround the bushing part and cover the ribs, comprises two opposing end faces. The sleeve part is placed and positioned in an approximately coaxial manner in relation to the bushing part, in such a way that it covers the ribs, the positioned sleeve part being locked by one of its two faces on the bushing part. The bushing part is elastically twisted about its central axis, in such a way that the ribs are towards said central axis and the other face of the sleeve part is locked on the bushing part that is held in a twisted position against the elastic restoring force of the ribs.

Abstract: The invention relates to a method for producing a conductive contact part for a detachable electric plug-in connection. Said method provides a contact element comprising a bushing part, sections of which contain longitudinal slits and which has ribs distributed around its periphery. A sleeve part, which can surround the bushing part and cover the ribs, comprises two opposing end faces. The sleeve part is placed and positioned in an approximately coaxial manner in relation to the bushing part, in such a way that it covers the ribs, the positioned sleeve part being locked by one of its two faces on the bushing part. The bushing part is elastically twisted about its central axis, in such a way that the ribs are towards said central axis and the other face of the sleeve part is locked on the bushing part that is held in a twisted position against the elastic restoring force of the ribs.

Abstract: A front plug system with a lagging end contact arrangement. The front plug system for flat components includes a front element (1) with front plug connector (20) which can be plugged on by a swinging motion. If the front plug connector is plugged on until the point of engagement of a closing arrangement (27, 15) is reached, all operating contacts of the front plug systems arranged in receiving arrangements (3, 24) are already closed. An end contact arrangement (51, 52) arranged opposite the center of rotation of the front plug connector engages only when, after operating the closing arrangement, the front plug connector is plugged completely onto the front element and secured against being pulled off. With the end contact arrangement according to the invention the electrical signals of the operating contacts can be released simultaneously in particular across a control on the flat component.

Abstract: In wrapping a wire around a pin, the turn being produced is rolled against the pin by a tool surface (21) which rotates with the wrapping motion, so that defined and reproducible contact areas are created. As far as the forces are concerned, the contact-making and wrapping are decoupled from each other; the tension of the wire therefore needs to be designed only still for the wrapping process proper.