Method and device for notching a tube of a frame for a vehicle seat, especially a tube of a headrest frame

摘要

The method of notching a headrest tube for a motor vehicle involves placing the tube in a clamp (51,52) and using a punch (6) guided across the clamp jaws at a working angle of between fifteen and forty five degrees. The end (63) of the punch has a tooth (21) for forming the notch. The tooth has a cutting face (22) parallel to the clamping surface.