RACK-AND-PINION STEERING GEAR UNIT

摘要

[Problem] To reduce the weight and the cost of a gear housing for a steering gear unit. [Solution] An outward-flange-shaped engaging projection (43) is formed in an intermediate section in the axial direction of a rack shaft (40), and a gear housing is configured from a pinion-side housing (10), a pinion-opposing-side housing (20), and an intermediate tube (30). As a result, movement of the rack shaft (40) toward the pinion side and toward the pinion-opposing side is restricted by using both ends of the pinion-side housing (10). Hence, it is possible to make a member lighter by reducing the thickness of the intermediate tube (30), and configuring the intermediate tube (30) from a flexible material, because it is possible to limit the section requiring significant strength to the pinion-side housing (10), which is short in length in the vehicle-width direction. Furthermore, it is possible to reduce the cost of production, because manufacturing is simple.