F - Mech Eng,Light,Heat,Weapons – 16 – M
Patent
F - Mech Eng,Light,Heat,Weapons
16
M
F16M 11/10 (2006.01) F16F 15/28 (2006.01) F16M 11/06 (2006.01)
Patent
CA 2437590
A counter-balancing mechanism comprising a support (1) for supporting an article to be tilted about a horizontal axis; a cam (4) movable with the support, the cam surface of which varies in a direction normal to the plane of rotation of the support; and a cam follower (9) loaded by a resilient means (12) whereby, as the support rotates, the cam follower and resilient means causes a return force to be exerted to substantially conteract the torque caused by the rotation of the support. Preferably, a means for varying the return force in accordance with a load on the support is provided, wherein the cam and resilient means is able to rotate about a centre offset from the central axis about which the support rotates and including means for setting a variable reaction point, against which the cam follower force reacts, at or offset from said central axis, thereby to cause the return force exerted due to rotation of the support about a particular angle to be varied.
L'invention concerne un mécanisme d'équilibrage comprenant un support (1) servant à porter un article à incliner autour d'un axe horizontal, une came (4) amovible avec le support, la surface de la came variant dans une direction perpendiculaire au plan de rotation du support, et un galet de came (9) chargé au moyen d'un dispositif résiliant (12), de ce fait, à mesure que le support tourne, le galet de la came et le dispositif résiliant engendrent une force de retour à exercer de manière à contrer le couple provoqué par la rotation du support. De préférence, cette invention a trait à un dispositif servant à faire varier la force de retour en fonction d'une charge appliquée au support, la came et le dispositif résiliant pouvant tourner autour d'un centre décalé de l'axe central autour duquel le support tourne, ainsi qu'à un dispositif permettant d'établir un point de réaction variable, contre lequel la force du galet réagit au niveau de l'axe central ou décalé de celui-ci, ce qui engendre la force de retour exercée provoquée par la rotation du support autour d'un angle particulier à faire varier.
Brion Raffoul
Ronford-Baker Engineering Company Ltd.
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