Patent attributes
A steering device of a vehicle includes: a shaft mounted with a steering wheel; an inner tube rotatably covering the shaft; an outer tube fitting around the inner tube; a first housing reciprocably housing the outer tube along an axis direction of the shaft; an input unit provided on the outer tube; a screw member being provided in the first housing, and making the input unit reciprocable along the axis direction; and a worm gear rotating the screw member, and a motor driving the worm gear, being housed in a second housing mounted to the first housing. A vulnerable part is provided in the second housing in such a way that, when impact applies to the vehicle and another object collides with the second housing, the second housing breaks while maintaining a mounting state of the worm gear.