Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms

FMECHANICAL ENGINEERING LIGHTING HEATING WEAPONS BLASTING ENGINES OR PUMPS F16Engineering elements F16HGEARING

F16H25/00Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms

F16H25/02the movements of two or more independently moving members being combined into a single movement F16H25/04for conveying rotary motion F16H25/06with intermediate members guided along tracks on both rotary members F16H25/08for interconverting rotary motion and reciprocating motion F16H25/10with adjustable throw F16H25/12with reciprocation along the axis of rotation F16H25/122Gearings with helical grooves and automatic reversal F16H25/125having the cam on an end surface of the rotating element F16H25/14with reciprocation perpendicular to the axis of rotation F16H25/16for interconverting rotary motion and oscillating motion F16H25/18for conveying or interconverting oscillating or reciprocating motions F16H25/183conveying only reciprocating motion F16H25/186with reciprocation along the axis of oscillation F16H25/20Screw mechanisms F16H25/2003with arrangements for taking up backlash F16H25/2006with more than one nut or with nuts consisting of more than one bearing part F16H25/2009with radial preloading F16H25/2015Elements specially adapted for stopping actuators in the end position; Position sensing means F16H25/2018with both screw and nut being driven F16H25/2021with means for avoiding overloading F16H25/2025with means to disengage the nut or screw from their counterpart; Means for connecting screw and nut for stopping reciprocating movement F16H25/205comprising alternate power paths F16H25/2056Telescopic screws with at least three screw members in coaxial arrangement F16H25/22with balls, rollers, or similar members between the co-operating parts Elements essential to the use of such members F16H25/2204with balls F16H25/2209with arrangements for taking up backlash F16H25/2214with elements for guiding the circulating balls F16H25/2219Axially mounted end-deflectors F16H25/2223Cross over deflectors between adjacent thread turns F16H25/2228the device for circulation forming a part of the screw member F16H25/2233with cages or means to hold the balls in position F16H25/2238using ball spacers, i.e. spacers separating the balls F16H25/2247with rollers F16H25/2252Planetary rollers between nut and screw F16H25/2261arranged substantially perpendicular to the screw shaft axis F16H25/2266arranged substantially in parallel to the screw shaft axis F16H25/2285with rings engaging the screw shaft with the inner perimeter F16H25/229Eccentric rings with their axis arranged substantially parallel to the screw shaft axis F16H25/2295Rings which are inclined or can pivot around an axis perpendicular to the screw shaft axis F16H25/24Elements essential to such mechanisms F16H25/2409one of the threads being replaced by elements specially formed for engaging the screw or nut F16H25/2418Screw seals, wipers, scrapers or the like F16H25/2427one of the threads being replaced by a wire or stripmetal F16H25/2454Brakes; Rotational locks F16H25/2472Safety nuts