JPH02113575U - - Google Patents

Description

[Brief explanation of drawings]

Fig. 1 is a sectional view showing an embodiment of the reaction force adding structure according to the present invention, Fig. 2 is a sectional view showing the reaction force chamber shown in Fig. 1, and Fig. 3 is a front view showing the reaction force plunger shown in Fig. 1. 4 is a perspective view showing an overview of the reaction force chamber in FIG. 1, FIG. 5 is a sectional view showing a conventional reaction force adding structure, and FIG. FIG. 1...Input shaft, 2...Inner wall, 3...
...Outer wall, 4...Reaction force chamber, 5...Plunge hole, 6...
...Reaction force plunger, 7... recess.

Claims (1)

[Scope of utility model registration request] Electronically controlled power steering that is installed on the input shaft that rotates together with the steering wheel and changes the steering force of the steering wheel using hydraulic pressure diverted from the main assist oil that changes depending on the vehicle speed. In the structure, there is a donut-shaped reaction force chamber surrounded by an inner wall and an outer wall formed on a part of the output side pinion shaft located on the outer periphery of the input shaft, and a plunger hole bored in the inner wall of the reaction force chamber. The input shaft is provided with a needle-shaped reaction force plunger, and a recess provided on the outer peripheral surface of the input shaft in correspondence with the reaction force plunger, and receives the hydraulic pressure introduced into the reaction force chamber to reduce the reaction force. A reaction force adding structure for electronically controlled power steering, characterized in that the plunger is configured to be pressed toward an input shaft side to add a steering reaction force.