F - Mech Eng,Light,Heat,Weapons – 16 – B
Patent
F - Mech Eng,Light,Heat,Weapons
16
B
F16B 39/36 (2006.01)
Patent
CA 2724996
The present invention refers to a sell=locking nut (1) comprising an upper threaded collar (3) provided with longitudinal slots (7), being V or U shaped, also with sharp edge, defining in the collar a plurality of circular arc segments (9) compressed by an external helical spring (5), and in which the collar slots have such a width as not to allow the mutual contact of the circular arc segments (9) compressed by the spring. The spring of the self-locking nut is made of precipitation hardening stainless steel whereby it shows high constancy of braking torque features even for repeated screwing/unscrewing cycles. The invention refers also to a method for manufacturing the nut.
La présente invention concerne un écrou autobloquant (1) comprenant un collier fileté supérieur (3) doté de fentes longitudinales (7), en forme de V ou de U, comprenant également un bord acéré, définissant dans le collier une pluralité de segments en arcs circulaires (9) comprimés par un ressort hélicoïdal externe (5), et dans lequel les fentes du collier ont une largeur telle quelle ne permet pas le contact mutuel desdits segments (9) comprimés par le ressort. Le ressort de lécrou autobloquant est fait par durcissement structural dacier inoxydable, il montre donc une constance élevée de caractéristiques de couple de freinage même pendant des cycles de vissage/dévissage répétés. Linvention concerne également un procédé de fabrication de lécrou.
Gally S.p.a.
Shapiro Cohen
LandOfFree
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