Indexing drive

Abstract

Abstract DRIVING AND DRIVEN SHAFTS ARE SUPPORTED IN BEARINGS WHICH ARE PERMANENTLY SPACED APART AT A DEFINITELY FIXED CENTER DISTANCE. ON THE DRIVEN SHAFT IS A FIRST SUPPORT IN THE FORM OF A FLANGE FOR A CIRCLE OF CAM-FOLLOWER ROLLERS. ON THE DRIVE SHAFT IS A SECOND SUPPORT IN THE FORM OF A FLANGE FOR A CAM MEANS WHICH DRIVE THE FOLLOWER ROLLERS AROUND SAID CIRCLE. EACH ROLLER IS BORNE UPON A STUD WHICH EXTENDS THROUGH A FLANGED BUSHING. EACH BUSHING CLOSELY BUT ROTATABLY AND REMOVABLY FITS INTO A HOLE IN SAID FIRST SUPPORT AND ITSELF HAS AN ECCENTRIC HOLE THERETHROUGH. EACH STUD IS LOCATED IN ONE OF THESE ECCENTRIC HOLES. EACH STUD ALSO HAS A STOP AT ONE END FOR ENGAGEMENT WITH THE FLANGE OF THE BUSHING, AND IS THREADED ON ITS END OPPOSITE TO RECEIVE A DRAW NUT REACTING AGAINST SAID FIRST SUPPORT FOR CLAMPING THE FLANGE OF THE BUSHING THERETO, THEREBY TO HOLD THE BUSHING IN ANY SELECTED ANGULAR POSITION ON THE SUPPORT. BY LOOSENING THE NUT THE BUSHING IS RELEASED FOR ROTARY ADJUSTMENT OF THE POSITION OF THE CENTER LINE OF THE ROLLER WHICH IT SUPPORTS, WHEREBY THE RADII OF THE CENTERS OF ANY OR ALL OF THE ROLLERS MAY BE CHANGED. EACH AND EVERY BUSHING, STUD OR ROLLER, IF DAMAGED, IS REPLACEABLE IN ITS SUPPORT, THE SUPPORT BEING PROTECTED AGAINST DAMAGE SO THAT ITS REPLACEMENT IS NOT NECESSARY IN SUCH AN EVENT.

Inventors

• 👤 Duane W Woltjen

Bibliographic Details