JPH031877U - - Google Patents

Description

[Brief explanation of drawings]

1 and 2 are diagrams showing one embodiment of the present invention, in which FIG. 1 is a configuration diagram of an electric power steering device, FIG. 2 is a characteristic diagram showing changes in motor current depending on the steering angle, and FIG. 3 is a diagram showing an example of the present invention. 9 to 9 are diagrams used to explain the conventional example, where FIG. 3 is a side view of a four-wheel buggy vehicle, FIG. 4 is a rear view of the four-wheel buggy vehicle, and FIG. 5 is a configuration diagram of an electric power steering device. , Figure 6 is an exploded perspective view showing the relationship between the input shaft, output shaft, and torsion bar, Figure 7 is a cross-sectional view of the assembled input shaft, output shaft, and torsion bar, and Figure 8 is the stopper mechanism. FIG. 9 is a characteristic diagram showing changes in motor current depending on the steering angle. 3... Operation handle, 5... Input shaft, 7... Steering torque sensor, 11... Output shaft, 17... Drive motor, 19... Torsion bar, 101... Stopper mechanism.

Claims (1)

[Scope of utility model registration request] An input shaft connected to an operating handle, an output shaft connected to a wheel side and connected to the input shaft via a torsion bar, and a drive motor that applies driving force to the output shaft side. The torsion bar is twisted by the steering torque input through the operation handle, and a relative rotation angle is generated between the input shaft and the output shaft, and the drive motor is controlled by detecting this relative rotation angle. An electric power steering device configured to apply a driving force corresponding to a steering torque to an output shaft side, characterized in that a stopper mechanism for regulating a maximum steering angle is provided on an input shaft side. Device.