Title:
ピッチ伝達ギア及び変速装置
Document Type and Number:
Japanese Patent JP2004522911
Kind Code:
A
Abstract:
A pitch transfer gear transmission which enables drive to be transmitted from a gear of having one modulus ( 42 ) to a gear having another modulus ( 46 ) includes at least two gears ( 12,16 ) which have a different number of teeth and which are able to rotate relative to one another, so that the teeth of the two gears ( 12,16 ) can form a gear modulus of a first value at one part of the periphery of the gear, and a gear modulus of another value at another part of the periphery of the gear. Continuously variable transmissions are formed by providing an input or output gear ( 42,46 ) which has a modulus which varies along the length of the gear. Pitch transfer gear assembly ( 30 ) engages with the input or output gear ( 42,46 ), and is moveable by a mechanism ( 59 ) along the length of the gear changing modulus, so as to set the drive ratio of the transmission.
Inventors:
Eric P. Wilmot
David Ellis
David Ellis
Application Number:
JP2002566147A
Publication Date:
July 29, 2004
Filing Date:
February 21, 2002
Export Citation:
Assignee:
Aimbridge Proprietary Limited
International Classes:
F16H1/16; F16H3/02; F16H3/06; F16H3/42; F16H55/08; F16H55/22; F16H55/24; (IPC1-7): F16H3/02; F16H1/16; F16H55/08; F16H55/22
Attorney, Agent or Firm:
Kosaku Sugimura