F - Mech Eng,Light,Heat,Weapons – 16 – B
Patent
F - Mech Eng,Light,Heat,Weapons
16
B
F16B 23/00 (2006.01)
Patent
CA 2485451
A fastener system comprising a plurality of ranges of size of threaded fastener (10), each fastener having a head (12, 32) provided with a recess (14) to receive a tool (20) to rotatingly drive the fastener. In each range of sizes, the largest size of fastener has a recess (14) comprising a plurality of driving tiers (16a, b, c, d) of reducing size superimposed on one another. Between two adjacent size ranges, there is a common tier (16d; 16b~), being the largest tier (16b', 16b'') of the recess (14', 14'') smaller size range, and the smallest tier (16d) of the recess (14) of the larger size range
L'invention concerne un système de fixation constitué de plusieurs domaines de taille de fixations filetées (10), chaque fixation possédant une tête (12, 32) comportant un manchon (14) destiné à recevoir un outil (20) afin d'entraîner la fixation en rotation. Dans chaque domaine de taille, la plus grande taille de fixation comporte un manchon (14) comprenant plusieurs étages d'entraînement (16a, b, c, d) superposés et de taille allant en se réduisant. Entre deux domaines de tailles adjacents, il existe un étage commun (16d; 16b´), constituant le plus grand étage (16b', 16b'') du manchon (14', 14'') de domaine de taille le plus petit, et l'étage le plus petit (16d) du manchon (14) de domaine de taille le plus grand.
Brooks Lawrence Antony
Sidwell Steven
Gowling Lafleur Henderson Llp
Uni-Screw Worldwide Inc.
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