Driving heads for fasteners

Details Driving heads for fasteners Driving heads for fasteners

F - Mech Eng,Light,Heat,Weapons

16

B

F16B 23/00 (2006.01) B25B 13/48 (2006.01) B25B 15/00 (2006.01) F16B 41/00 (2006.01)

Patent

CA 2405313

Fastener (1) having a driving head (2) which includes at least two superimposed non-circular recesses (3, 4, 5) for receiving the bit of a driver (7) with which driver a torque can be applied to operate the fastener (1), characterised in that the fastener (1) comprises a security feature whereby said torque needs to the applied to at least two of said recesses (3, 4, 5) in order to operate the fastener (1).

L'invention concerne une fixation (1) possédant une tête conductrice (2) comportant au moins deux embrèvements non-circulaires superposés (3, 4, 5) permettant de recevoir la pointe d'un tournevis (7) avec lequel un moment de torsion peut être appliqué afin de faire jouer la fixation (1). La fixation (1) comprend une caractéristique de sécurité ainsi ledit moment de torsion doit être appliqué à au moins deux desdits embrèvements (3, 4, 5) afin de faire jouer la fixation (1).

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