Title:
無段変速機
Document Type and Number:
Japanese Patent JP3704662
Kind Code:
B2
Abstract:
A mechanical continuously variable transmission in which the power roller is in "line contact" with the counter roller instead of conventional "pinpoint contact". By utilizing line contact of the power roller and the counter roller, the pressure force between the metal components of a mechanical continuously variable transmission can be reduced. In addition, the line contact also reduces extra energy for maintaining the operation thereof. The configuration of the roll surface of the power roller, which is rotated by a rotation axle connected to an input axle, is formed into a partial configuration of a sphere. A plurality of counter rollers, which are in line contact with the power roller having said roll surface, are arranged in a circle by a disk. Each counter roller is formed with a concave roll surface corresponding to the partial configuration of the sphere on the surface thereof. The counter rollers are driven to rotate by the rotation of the power roller in contact therewith. Each counter roller is assembled rotatably on the same periphery of the disk connected to an output axle so that the concave roll surfaces neighboring to each other roughly continue into a toric shape. A rotation axle of the power roller is adapted so as to be continuously inclined with respect to the disk.
Inventors:
Tadahiro Shimazu
Application Number:
JP2004521101A
Publication Date:
October 12, 2005
Filing Date:
July 10, 2002
Export Citation:
Assignee:
Tadahiro Shimazu
International Classes:
F16H15/28; F16H15/30; (IPC1-7): F16H15/52; F16H15/28
Domestic Patent References:
| JP10129517A | ||||
| JP56138557A | ||||
| JP54112445A | ||||
| JP2000170860A | ||||
| JP11146602A |
Other References:
FR1245647A
Attorney, Agent or Firm:
Takenori Hiroe