Patent ID: 6884176

Claim:
A method of securing holding jaws in a machine for the manufacture of heads on elongate bodies, including nails, screws etc said machine comprising at least one tool ring having an axis of rotation about which the tool ring can be caused to rotate, said tool ring comprising at least one support surface substantially perpendicular relative to the axis of rotation, where the tool ring comprises a plurality of holding jaws and means for positioning and securing said holding jaws along the circumference of the tool ring on said support surface, where each of said holding jaws comprise at least one face, provided with a groove for receiving an elongate body longitudinally in the said groove, and a first and a second side face as well as a back side, where at least the second side face is wedge-shaped, and where the tool ring further comprises a plurality of holding fittings, said fittings comprising a number of passive fittings and a number of active fittings, and where said passive fittings are secured immovably to the tool ring, and where said passive fittings each comprise at least one first holding surface, said first holding surface being placed in an angle equal to or smaller than 90 degrees with the support surface, where said first holding surface is adapted for co-operation with a holding jaw, and where said active fittings each comprise at least one wedge-shaped side adapted for co-operation with a wedge-shaped side of a holding jaw, and where a number of holding jaws, preferably the majority of the holding jaws, are secured each with the first side face against a first holding surface of a passive fitting and the back side against a support surface, as well as with an active fitting placed against the second side face of the holding jaw, and where the active fitting is secured to the tool ring, whereby said number of holding jaws each are secured at least between a support surface on the tool ring, a holding surface of a passive fitting and a wedge-shaped side of an active fitting, and where said active fitting is used for applying force on at least one holding jaw for securing said holding jaw to the tool ring.