초록

Robust nested speed converter and bearing apparatus providing speed conversion function and bearing support function in a compact package for a range of applications.

대표청구항 ▼

[ What is claimed is:] [1.]1. Apparatus for converting rotary motion, the apparatus comprisinga conjugate pair of cam gear parts and a translating part,said translating part including slots to define a slotted part, and a roller device,wherein a first of said pair of conjugate parts comprises an inn

[ What is claimed is:] [1.]1. Apparatus for converting rotary motion, the apparatus comprisinga conjugate pair of cam gear parts and a translating part,said translating part including slots to define a slotted part, and a roller device,wherein a first of said pair of conjugate parts comprises an inner cam gear and the second of said pair comprises an outer cam gear, said slotted part nested in between,all said parts mounted about a common axis and defining an input and an output rotatable at said axis,said cam gear parts coupled together via said roller device, said roller device comprising a roller seated in one of said slots,all said parts having front and rear faces, wherein said slotted part is essentially cylindrical and defines a front bearing surface around its inner circumference adjacent to its front face and a rear bearing surface around its inner circumference adjacent to its rear face and defines a front bearing surface around its outer circumference adjacent to its front face and a rear bearing surface around its outer circumference adjacent to its rear face,wherein said inner cam gear part is essentially cylindrical and defines a front bearing surface around its outer circumference adjacent to its front face and a rear bearing surface around its outer circumference adjacent to its rear face,wherein said outer cam gear part defines a front bearing surface around its inner circumference adjacent to its front face and a rear bearing surface around its inner circumference adjacent to its rear face,wherein said inner circumference bearing surfaces of said slotted part rotatably communicates with said bearing surfaces of said inner cam gear part and said outer circumference bearing surfaces of said slotted part rotatably communicate with said bearing surfaces of said outer cam gear part,wherein rotation of a first of said parts as said input rotates a second of said parts as said output, wherein said output rotation is dictated by the relationship of said cam gears and said slots.