F - Mech Eng,Light,Heat,Weapons – 16 – B
Patent
F - Mech Eng,Light,Heat,Weapons
16
B
F16B 23/00 (2006.01) F16B 37/00 (2006.01)
Patent
CA 2740039
It has become apparent that the dimensions of inbuilt-collar driving means of the same nominal size can vary according to the manufacturing process. The dimensions of the collar have to be adapted to suit the method of manufacture accordingly, at the expense of strength or mass. In addition, the torque that can be transmitted for tightening and loosening varies according to a useful height on which a wrench can gain a purchase. The idea underlying the invention, in order to have a useful height identical to the height of shank (7) is for the frustoconical collar (152) of a driving means (151) to be pushed in towards its centre in the continuation of the faces of the shank. The driving means with inbuilt collar proposed by the invention is suited to all methods of manufacture, and can be manufactured without adversely affecting the dimensions of the driving means or how it is fitted.
II apparaît que suivant le procédé de fabrication, les dimensions des moyens d'entraînement à embase incorporée de même référence, peuvent varier. Les dimensions de l'embase doivent être adaptées en conséquence au mode de fabrication, au détriment de sa résistance ou de sa masse. De plus, le couple transmissible pour le serrage et le desserrage varie en fonction d'une hauteur utile de prise de clé. Dans l'invention, on a eu l'idée, pour disposer d'une hauteur utile identique à la hauteur de fût (7), d'enfoncer l'embase tronconique (152) d'un moyen d'entraînement (151) vers son centre dans le prolongement des faces du fût. Le moyen d'entraînement à embase incorporée proposé par l'invention est adapté à tous les modes de fabrication, et ce sans affecter les dimensions du moyen d'entraînement et son mode de mise en place.
Berton Anthony
Guerin Nicolas
Bcf Llp
Lisi Aerospace
LandOfFree
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