To provide a steering reaction force device, the weight of which is further reduced and which is provided with a worm wheel.SOLUTION: A steering reaction force device includes a motor and a speed reduction mechanism. The speed reduction mechanism includes: a worm wheel attached to a steering shaft and including a plurality of wheel tooth portions on the outer circumference; and a worm shaft configured to be rotated by the motor. The worm wheel includes a metal core grid and the wheel tooth portions disposed on the outer circumference side of the core grid. The outer circumference of the core grid includes a cylindrical portion extending along the circumferential direction around the central axis and at least a protrusion protruding radially outward. The wheel tooth portions include first teeth that are disposed on the outer circumferential side of the cylindrical portion and composed of resin and second teeth that are composed of the protrusions and resin layers formed on the outer periphery of the protrusion.SELECTED DRAWING: Figure 5
【課題】重量がより低減される、ウォームホイールを備える操舵反力装置を提供すること。【解決手段】操舵反力装置は、モータと減速機構とを備える。減速機構は、操舵軸に取り付けられ外周に複数のホイール歯部を有するウォームホイールと、モータによって回転するウォームシャフトと、を有する。ウォームホイールは、金属製の芯金と、芯金の外周側に設けられるホイール歯部と、を有する。芯金の外周は、中心軸の軸回りの周方向に沿って延びる円筒部と、径方向外側に突出する少なくとも1つの突起部と、を有する。ホイール歯部は、円筒部の外周側に設けられ、且つ、樹脂で形成される第1歯と、突起部と突起部の外周に形成される樹脂層とで形成される第2歯と、有する。【選択図】図5
STEERING REACTION FORCE DEVICE
操舵反力装置
2023-08-08
Patent
Electronic Resource
Japanese
STEERING REACTION FORCE DEVICE AND STEERING REACTION FORCE IMPARTING METHOD
European Patent Office | 2016
|STEERING REACTION FORCE DEVICE AND STEERING REACTION FORCE IMPARTING METHOD
European Patent Office | 2017
|STEERING REACTION FORCE DEVICE AND METHOD FOR IMPARTING STEERING REACTION FORCE
European Patent Office | 2016
|