Title:
PLANETARY DIFFERENTIAL GEAR MECHANISM
Document Type and Number:
Japanese Patent JP3922892
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a planetary differential gear mechanism, capable of making a planetary gear rotate smoothly.
SOLUTION: A chamfer 24d is formed on the inside perimeter of a housing hole 24a for rotatably housing a planetary gear 3 and each intersecting part of an outside perimeter and an inside perimeter of a circular projection 24 formed at a housing. Let the angle between the chamber 24d and the inside perimeter of the housing hole 24 be an obtuse angle. A through-hole, penetrating from an end face to the other end faces, is formed at the center part of the planetary gear, and a lateral hole having an end opened to an inner perimeter of the through-hole and the other end opened to an outside of a gear part of the planetary gear, so as to improve the lubricating performance.
Inventors:
Akinao Minegishi
Ikeda Seiya
Shinichiro Nakajima
Ikeda Seiya
Shinichiro Nakajima
Application Number:
JP2001158569A
Publication Date:
May 30, 2007
Filing Date:
May 28, 2001
Export Citation:
Assignee:
JTEKT Corporation
International Classes:
F16H48/10; F16H48/38; F16H48/40; F16H57/025; F16H57/04; (IPC1-7): F16H48/10; F16H57/02; F16H57/04
Domestic Patent References:
| JP9112657A | ||||
| JP7280066A | ||||
| JP10026212A | ||||
| JP8210474A | ||||
| JP60159444A | ||||
| JP52077385U | ||||
| JP4312247A | ||||
| JP9144844A | ||||
| JP8109957A |
Attorney, Agent or Firm:
Noboru Watanabe