Title:
ラックピニオン式操舵装置
Document Type and Number:
Japanese Patent JP4419574
Kind Code:
B2
Abstract:
A rack-and-pinion steering apparatus comprises pinion teeth formed according to proper tooth specifications in other aspects under a larger pressure angle, thereby stably offering smooth and comfortable steering feeling over a long time, The module (m), number of teeth (z), tooth depth (h) and helix angle (²) of the pinion teeth (4) are set within the following ranges, under a pressure angle (±) set within a range of 24° to 30° and a given stroke ratio.
module (m): 1.8 to 2.0
number of teeth (z): 7 to 13
tooth depth (h): 2m to 2.5m
helix angle (²): 35° or smaller
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Inventors:
Yamazaki Gakuyasu
Shiro Nakano
Shiro Nakano
Application Number:
JP2004006094A
Publication Date:
February 24, 2010
Filing Date:
January 13, 2004
Export Citation:
Assignee:
JTEKT Corporation
International Classes:
B62D3/12; B62D5/22; F16H19/04; F16H55/08; F16H55/18; F16H55/28; B62D5/04
Domestic Patent References:
| JP2000130560A | ||||
| JP2004001679A |
Attorney, Agent or Firm:
Nobuo Kono