F - Mech Eng,Light,Heat,Weapons – 16 – B
Patent
F - Mech Eng,Light,Heat,Weapons
16
B
F16B 31/02 (2006.01) F16B 23/00 (2006.01)
Patent
CA 2202915
The invention relates to a fastening element with a torque-limiting function, comprising on the one hand a fastening member (2, 2') with working threads (4), that is to say threads which are active for the fastening function of the element, and on the other hand a gripping member (3, 3') which is arranged so as to be capable of being turned with the aid of a spanner, wrench, screwdriver or other tool for attaching the fastening element (1, 1') and connected or connectable to the fastening member (2, 2') via torque- transmitting threaded connection (5, 6/17, 18) with sufficient strength in order to be capable of transmitting to the fastening member torque of the size for which the fastening element is intended, and in which the gripping member is arranged to be unscrewed and turned relative to the fastening member, on attachment of the fastening element, only when the torque exceeds a given predetermined torque. The threads (5, 6/17, 18) in the torque-transmitting threaded connection are threaded in the opposite direction compared with the working threads (4).
L'invention concerne un élément de fixation possédant une fonction de limitation de couple et comprenant, d'une part, un élément de fixation (2, 2') comportant des filets (4) exerçant un effet dans la fonction de fixation de l'élément et, d'autre part, un élément de serrage (3, 3') conçu pour être tourné à l'aide d'une clé à vis, d'un tournevis ou d'un autre outil de serrage de l'élément de fixation (1, 1') et s'accouplant à l'élément de fixation (2, 2') par l'intermédiaire d'un raccord fileté (5, 6/17, 18) transmettant un couple avec une force suffisante, de façon à pouvoir transmettre à l'élément de fixation un couple de la dimension pour laquelle l'élément de fixation est conçu, l'élément de serrage étant conçu pour être dévissé et tourné par rapport à l'élément de fixation, lorsqu'on serre ce dernier, uniquement quand le couple dépasse une limite prédéterminée. Les filets (5, 6/17, 18) du raccord fileté s'orientent dans un sens contraire à celui des filets (4).
Anglo Dutch International Finance N.v.
Autotorque International Ab
Borden Ladner Gervais Llp
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