Toyota Jidosha Kabushiki Kaisha

Jtekt Corporation

Yuuji Ishii

Kentaro Kikuiri

Shigeru Hoshino

Tomonori Sugiura

Susumu Imagaki

Shoji Ishimura

Hiroshi Kawakami

Atsushi Tano

Shunsuke Nunomura

Naohiro Oosono

Kosuke Ito

A steering device includes a column shaft, a column jacket, a fastening mechanism including a fastening shaft having a first flat portion, a first tooth member, a second tooth member, an energizing member, and a release member including: a cylindrical portion having a second flat portion; and a release portion, wherein: the release member is configured to cause the release portion to be engaged with the second tooth member; and a projecting portion formed on at least one of the first flat portion and the second flat portion is elastically engaged with the other one of the first flat portion and the second flat portion and restrain backlash between the first flat portion and the second flat portion.

Steering device

A fastening mechanism fastens a first side plate to a second side plate by a fastening member. A boss with a rhombic cross-section of the fastening member is inserted into a telescopic-adjust long groove of the second side plate. An outer periphery of the boss includes a first corner part and a third corner part each forming an obtuse angle and facing each other. The first corner part is disposed on an upper side in an axial direction, on a lower side in a tilt direction, while the third corner part is disposed on a lower side in the axial direction, on an upper side in the tilt direction. A width across the first corner part and the third corner part is shorter than a groove width W of the telescopic-adjust long groove.

Growing community of inventors

Shiki-gun, Japan

Yuuji Ishii