US 12,240,531 B2
Steering device
Kenta Sugimoto, Hitachinaka (JP)
Assigned to HITACHI ASTEMO, LTD., Hitachinaka (JP)
Appl. No. 18/546,650
Filed by Hitachi Astemo, Ltd., Hitachinaka (JP)
PCT Filed Mar. 25, 2021, PCT No. PCT/JP2021/012456
§ 371(c)(1), (2) Date Aug. 16, 2023,
PCT Pub. No. WO2022/201407, PCT Pub. Date Sep. 29, 2022.
Prior Publication US 2024/0132139 A1, Apr. 25, 2024
Prior Publication US 2024/0227912 A9, Jul. 11, 2024
Int. Cl. B62D 3/12 (2006.01)
CPC B62D 3/12 (2013.01) 20 Claims
OG exemplary drawing
 
1. A steering device comprising:
a pinion shaft which is a bar-shape member provided so as to be rotatable, and which has a pinion formed partially;
a rack shaft which has a rack formed so as to be meshed with the pinion, and which is movable in a vehicle widthwise direction; and
a housing that stores therein at least the pinion and the rack,
wherein at least two reinforcement ribs that are a first rib and a second rib intersecting with the first rib are formed on an outer circumferential surface of the housing, and
wherein when a portion where the first rib and the second rib intersect with each other is defined as an intersection portion, the first rib having two ends, the end closest to the intersection portion is defined as the one end, the first rib comprises a brittle portion which has reduced strength in comparison with respective strengths of other portions of the first rib and which is provided between the intersection portion and the one end.