Title:
TOROIDAL TYPE CONTINUOUSLY VARIABLE TRANSMISSION FOR FOUR-WHEEL DRIVE CAR
Document Type and Number:
WIPO Patent Application WO/2006/003887
Kind Code:
A1
Abstract:
[PROBLEMS] To provide a practicable structure capable of limiting the axial positions of both first and second output side disks (3) and (6) to secure efficiency and durability. [MEANS FOR SOLVING PROBLEMS] The axial positions of both the first and second output side disks (3) and (6) are limited by a pair of thrust ball bearings (55) and (55) installed at positions where these both output side disks (3) and (6) are held from the axial both sides. One of a pair of raceway grooves forming each of these both thrust ball bearings (55) and (55) is directly formed in each of these both output side disks (3) and (6) at the inner surface inside diameter side end part of each of these both output side disks (3) and (6). Each of the raceway grooves for taking out the rotations of these both output side disks (3) and (6) properly limits the directions of gears (26), (27), (29), and (30) formed as helical gears. Then, a thrust load generated at a meshed part is prevented from being applied to these both thrust ball bearings (55) and (55) in forward traveling to secure the durability of these thrust ball bearings (55) and (55).
Inventors:
NISHII HIROKI
INOUE EIJI
INOUE EIJI
Application Number:
PCT/JP2005/011832
Publication Date:
January 12, 2006
Filing Date:
June 28, 2005
Export Citation:
Assignee:
NSK LTD (JP)
NISHII HIROKI
INOUE EIJI
NISHII HIROKI
INOUE EIJI
International Classes:
F16H15/38; F16C33/58; F16H37/02; (IPC1-7): F16H15/38; F16C33/58; F16H37/02
Foreign References:
| JP2001165267A | 2001-06-19 | |||
| JP2002081519A | 2002-03-22 | |||
| JP2002013609A | 2002-01-18 | |||
| JP2004084712A | 2004-03-18 | |||
| JPH10148245A | 1998-06-02 | |||
| JP2001116097A | 2001-04-27 | |||
| JPH08159229A | 1996-06-21 |
Attorney, Agent or Firm:
Oguri, Shohei (7-13 Nishi-Shimbashi 1-chom, Minato-ku Tokyo 03, JP)
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