MY124482A - One-way clutch - Google Patents

Abstract

TO PROVIDE A ONE-WAY CLUTCH INCLUDING A PLURALITY OF ROLLER KEYS PROVIDED BETWEEN AN INNER RING AND AN OUTER RING IN SUCH A MANNER AS TO BE SPACED AT INTERVALS IN THE CIRCUMFERENTIAL DIRECTION, WHICH IS CAPABLE OF IMPROVING A POWER TRANSMISSION EFFICIENCY AND OF MAKING COMPACT THE STRUCTURE BY ELIMINATING THE NECESSITY OF INCREASING THE RIGIDITY OF ASSOCIATED PARTS. A PLURALITY OF INWARD RECESSES 25 ARE PROVIDED IN THE OUTER PERIPHERAL SURFACE OF AN INNER RING 161 IN SUCH A MANNER AS TO BE SPACED AT INTERVALS IN THE CIRCUMFERENTIAL DIRECTION. THE INWARD RECESS 25 HAS AN INWARD MESHING PORTION 27 FORMED IN SUCH AN ARCUATE SHAPE AS TO BE BROUGHT IN CONTACT WITH A REGION, POSITIONED INWARD FROM A VIRTUAL CIRCLE C1M, OF THE CIRCUMFERENTIAL OUTER SURFACE OF A ROLLER KEY 18. A PLURALITY OF OUTWARD RECESSES 26 ARE PROVIDED IN THE INNER PERIPHERAL SURFACE OF AN OUTER RING 171 IN SUCH A MANNER AS TO BE SPACED AT INTERVAL IN THE CIRCUMFERENTIAL DIRECTION. THE OUTWARD RECESS 26 HAS A CONTAINING PORTION 29 BEING ALLOWED TO CONTAIN THE WHOLE OF THE ROLLER KEY 18, AND AN OUTWARD MESHING PORTION 31 FORMED IN SUCH AN ARCUATE SHAPE AS TO BE BROUGHT IN CONTACT WITH A REGION, POSITIONED OUTWARDFROM THE VIRTUAL CIRCLE C1M, OF THE CIRCUMFERENTAL OUTER SURFACE OF THE ROLLER KEY 18. THE ROLLER KEY 18, WHICH IS SPRING-BIASED TO THE INWARD RECESS 25, IS ALLOWED TO BE HELD BETWEEN THE INWARD MESHING PORTION 27 AND THE OUTWARD MESHING PORTION 31. ( SELECTED DRAWING:FIG. 3)