F - Mech Eng,Light,Heat,Weapons – 16 – B
Patent
F - Mech Eng,Light,Heat,Weapons
16
B
F16B 23/00 (2006.01) B21K 1/46 (2006.01) B25B 15/00 (2006.01)
Patent
CA 2308074
A spiral drive system for threaded fasteners (10) includes driver-engageable surfaces on the head end (16) of the fastener (10) in which at least some of the driver-engageable surfaces are defined by a spiral segment (8) configured to maximize torque transmission while spreading the driving load over a broad driver-fastener interface to reduce the risk of development of high stress regions. Drivers (4) and related tooling also are disclosed.
La présente invention concerne un système de tête d'outil spiralé pour liaison technique filetée (10) qui implique, sur la tête (16) de la liaison technique (10), des surfaces de contact d'outil. En l'occurrence, certaines des surfaces de contact d'outil sont définies par un segment spiral (8) d'une configuration conçue pour donner un couple de transmission maximum tout en faisant porter la charge de l'outil sur une large interface entre l'outil et la liaison technique. Cela vise à réduire les risques de développer des régions de contraintes élevées. L'invention concerne également les outils (4) et l'outillage correspondant.
Norton Rose Or S.e.n.c.r.l. S.r.l./llp
Phillips Screw Company
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