To provide an electric steering device capable of further enhancing durability and meshing accuracy of a gear constituting a rack-and-pinion mechanism.
The electric steering device 10 is a device having an electric motor 46 for giving assistant force relative to steering force inputted from a steering wheel 16 and performing steering of the vehicle 12 by transmitting the steering force including the assistant force to the steered wheel 14 at least a part through the rack-and-pinion mechanism 30. The rack-and-pinion mechanism 30 is provided with: a pinion 38 provided on a pinion shaft 28 connected to the steering wheel 16; a rack 40 provided on a rack shaft 32 connected to the steered wheel 14 over predetermined width and meshing with the pinion 38; and a rack guide 70 for urging the rack shaft 32 to the pinion 38. In the rack 40, a pressure angle 1 of a tooth root is set largely relative to a pressure angle 0 of a tooth tip.
| WO/2014/155441 | ELECTRIC POWER STEERING DEVICE |
| JP6414678 | Vehicle steering system |
| JP6311828 | Control devices and control methods for in-vehicle electronic devices |
SHIMIZU YASUO
MATSUO TAKESHI
| JPH07215224A | 1995-08-15 | |||
| JP2005319971A | 2005-11-17 | |||
| JP2000130560A | 2000-05-12 | |||
| JP2001133343A | 2001-05-18 | |||
| JPH0238379U | 1990-03-14 | |||
| JP2001163228A | 2001-06-19 | |||
| JP2003106393A | 2003-04-09 |
Toshiyuki Miyadera
Naoki Kashima
Yasuo Takubo
Shuji Ouchi