Electric power steering device has elastic body that deforms elastically for load input period when tooth surfaces of drive shaft, intermediate gear come into contact to move drive shaft

摘要

The device has a pinion shaft joined to a steering shaft engaged with a toothed rod, a drive shaft bearing joined to a steering assistance motor, a drive gear engaged with an intermediate gear joined to the pinion shaft. The drive shaft bearing holds an elastic body that deforms for a load input period when corresponding tooth surfaces of the drive shaft and intermediate gear come into contact to move the drive shaft axially. The device has a pinion shaft (13) joined to a steering shaft (12) engaged with a toothed rod (14), a bearing for a drive shaft joined to a steering assistance motor and with a drive gear and an intermediate gear (11) engaged with the drive gear (41) and joined to the pinion shaft. The drive shaft bearing is joined to the drive shaft in the axial direction and holds an elastic body that deforms elastically for a load input period when corresponding tooth surfaces of the drive shaft and intermediate gear come into contact to move the drive shaft in the axial direction.