Clamp screw

F - Mech Eng,Light,Heat,Weapons – 16 – B

Patent

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Details

F16B 39/24 (2006.01) B24B 45/00 (2006.01) F16B 31/00 (2006.01) F16D 41/12 (2006.01)

Patent

CA 2204651

A clamp screw (10) that includes a threaded member with a threaded part having a female thread (22) which screws onto a threaded attachment part, and a shaft- shaped peripheral part formed on its outer surface, an operating ring (12) whose inner part is inserted over the shaft-shaped peripheral part of the threaded member, and to which a rotational force is input externally, and a flange ring (18) fitted facing said operating ring so as to freely rotate on said shaft-shaped peripheral part of the threaded member (11) and in contact with the attached object (42), thread grooves (23, 32) of the same respective thread pitch engraved into the inserted and engaged inner and outer surfaces of the threaded member and operating ring, a plurality of balls (13) fitted into the thread grooves, a restraining ring (14) installed between the operating ring and flange ring and a spring means (36) fitted between the restraining ring and operating ring, which returns the operating ring to its initial position allowing for a set number of turns in a clamping range.

Vis de serrage (10) comprenant un élément de vissage pourvu d'une partie taraudée (22) se vissant sur un raccord fileté et d'une partie périphérique en forme de tige située sur sa surface extérieure, une bague de vissage (12) dont la partie intérieure est glissée au-dessus de la partie périphérique en forme de tige de l'élément de vissage et à laquelle on applique une force de rotation depuis l'extérieur, un collier (18) situé en face de ladite bague de façon à tourner librement sur ladite partie périphérique de l'élément de vissage (11) et en contact avec l'objet fixé (42), des gorges (23, 32) possédant respectivement le même pas et gravées dans les surfaces intérieures et extérieures en prise réciproque de l'élément et de la bague de vissage, une pluralité de billes (13) situées dans lesdites gorges, une bague de retenue (14) montée entre la bague de vissage et le collier, ainsi qu'un moyen élastique (36) situé entre la bague de retenue et la bague de vissage afin de faire revenir cette dernière à sa position initiale, ce qui permet d'effectuer un nombre déterminé de tours dans une plage de serrage.

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