公开(公告)号：US20250050936A1

公开(公告)日：2025-02-13

申请号：US18713361

申请日：2022-08-12

Applicant: JTEKT CORPORATION

Inventor： Yoshihiro OONO ,  Yasuyuki NOZAWA ,  Ryoichi TOKIOKA ,  Kunihiro OKA

IPC: B62D1/187

Abstract: A steering device includes a movable body that rotatably supports a shaft member to which a steering member is attached, and first and second rail mechanisms that guide movement of the movable body in a front-rear direction. The first rail mechanism has a first rolling element row that is disposed between a first raceway face of a first fixed rail and a second raceway face of a first moving rail. The second rail mechanism has a second rolling element row that is between a third raceway face of a second fixed rail and a fourth raceway face of a second moving rail. A contact angle of each of a plurality of first rolling elements with respect to the first and second raceway faces, and the contact angle of each of a plurality of second rolling elements with respect to the third and fourth raceway faces are different from each other.

公开(公告)号：US20210323598A1

公开(公告)日：2021-10-21

申请号：US17229254

申请日：2021-04-13

Applicant: JTEKT CORPORATION

Inventor： Takeshi WATANABE ,  Kunihiro OKA ,  Yasuyuki NOZAWA ,  Kei KITAHARA

IPC: B62D1/181 ,  B62D1/19

Abstract: A steering device includes: a first moving unit that moves in an axial direction along with a shaft member to which an operating member is connected; a second moving unit; a holding unit; a first screw mechanism; a second screw mechanism; a driving unit; and a transmission mechanism that transmits driving force of the driving unit to the first screw mechanism and the second screw mechanism. One of the first screw mechanism and the second screw mechanism is provided so as to operate in a forward direction when the operating member moves between a retraction region and an operation region, and reverse efficiency of that one screw mechanism is set such that when the operating member is subjected to an external force directed toward the retraction region, that one screw mechanism does not operate in a reverse direction.