ES413495A1 - Manufacture of pivots with hollow head for rotula connections. (Machine-translation by Google Translate, not legally binding)
- Google Patents
Manufacture of pivots with hollow head for rotula connections. (Machine-translation by Google Translate, not legally binding)
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
TMG TOUCY MEC GEN SA
Original Assignee
TMG TOUCY MEC GEN SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from FR7213469Aexternal-prioritypatent/FR2186306B1/fr
Application filed by TMG TOUCY MEC GEN SAfiledCriticalTMG TOUCY MEC GEN SA
Publication of ES413495A1publicationCriticalpatent/ES413495A1/en
Manufacture of hollow-headed pivots for ball-and-socket connections, characterized by their execution in 3, 4 or 5 positions, allowing in principle a first position to obtain by extrusion, from the diameter of the billet, the diameter before threading and possibly the diameter below of the head, in no case forming the cone at the same time or before these diameters, including a second position the roughing of the shape of the half sphere on the side of the stem and a preformation on the side of the head, including a third place slightly greater than the diameter of the billet, and, preferably, the formation of a chamfer at the end of the shank, and including a fourth position the closing of the sphere, the extrusion of the cone and a slight calibration of the diameter before the threading, being the initial diameter of the billet always greater than or equal to the largest diameter of the cone with the sole purpose that it is always extruded and does not include any part of the cone. The cylindrical extrusions are generally made in the first position in a closed matrix, the reducing coefficient being between the largest diameter of the cone and the cylindrical extrusions, generally greater than 33%. (Machine-translation by Google Translate, not legally binding)
ES413495A1972-04-171973-04-09Manufacture of pivots with hollow head for rotula connections. (Machine-translation by Google Translate, not legally binding)
ExpiredES413495A1
(en)
A device for the manufacture by hot stretching, in large length, of the hollow profiles and of the hard metals and alloys to deform. (Machine-translation by Google Translate, not legally binding)