Nsk Corporation

Shin Yamamoto

Yasuyuki Matsuda

Daisuke Gunji

Mitsuru Oike

Cyou Kyo

Eiji Inoue

Hiroki Nishii

Shunsuke Suzuki

Yuji Shimomura

Atsushi Maeda

Hiroshi Kawahara

Hiroyasu Yoshioka

Toshirou Toyoda

Shohei Kaneko

Toshiro Toyoda

Yuichiro Taguchi

Ryuho Morita

Toshihiko Sato

Takahiro Sushi

Hideyuki Saito

A steering column device includes a steering column; and a telescopic actuator. The steering column includes a first column member, a second column member assembled to the first column member in a manner of being displaceable relative to the first column member in an axial direction, and a low-friction sliding member disposed between the first column member and the second column member. The telescopic actuator includes a telescopic motor, and displaces the second column member in the axial direction with respect to the first column member by using the telescopic motor as a drive source.

Steering column device

An actuator with reverse input blocking clutch has a function of switching the reverse input blocking clutch to a state in which torque can be transmitted between an input member and an output member, in a state in which reverse torque is input to the output member from an output-side mechanism, by applying torque to the input member by an actuator in an opposite direction to a direction of the reverse torque, and then by giving an instruction to the actuator to apply torque having a magnitude smaller than a magnitude of the reverse torque to the input member in the opposite direction, transmitting the reverse torque to the input member.

Actuator with reverse input blocking clutch, steering device, and reverse input blocking clutch control method

A suspension device has an upper shell having a stepped section around an inner circumferential surface; a lower shell; a ball screw shaft rotatably supported by the upper shell; a bearing unit arranged between a part of the ball screw shaft and the upper shell, and having an outer side part in a radial direction including a side surface that comes in contact with a side surface on the other side in the axial direction of the stepped section; a ball nut screwed on the ball screw shaft; an inner tube joined to the lower shell and the ball nut; an electric motor; and a coil spring, and a circumscribed circle diameter of the ball nut and the inner tube is less than an inner diameter dimension of the stepped section.

Suspension device and assembly method therefor

An electric vehicle drive device includes: a first motor; a second motor; a transmission mechanism coupled to the first motor and the second motor; and a control unit configured to control operation of the first motor and the second motor based on a drive signal. The transmission mechanism includes: a sun gear shaft coupled to the first motor; a first planetary gear mechanism; a second planetary gear mechanism; and a one-way clutch configured to restrict a rotation direction of a first carrier to a predetermined positive rotation direction. The drive signal includes gear change information indicating a first state in which the second motor is controlled based on torque or a second state in which the second motor is controlled based on rotation speed, and throttle information indicating an acceleration of rotation speed of a wheel.

Electric vehicle drive device

An electric vehicle driving device includes a first motor, a second motor, a transmission device to which power of at least one of the first motor and the second motor is transmitted, and an output member that rotates with power output from the transmission device. A rotation axis of the first motor, a rotation axis of the second motor, and a rotation axis of the transmission device are arranged in parallel to a rotation axis of the output member. When seen from an axial direction parallel to the rotation axis of the output member, the rotation axis of the first motor is located on one side of a straight line passing through the rotation axis of the output member and the rotation axis of the transmission device and the rotation axis of the second motor is located on the other side of the straight line.

Electric vehicle driving device

An electric vehicle drive device includes: a first motor; a second motor, and a transmission mechanism coupled to the first motor and the second motor and capable of switching a reduction ratio. The transmission mechanism includes a sun gear shaft coupled to the first motor. The first motor includes: a first stator core, a first rotor core disposed radially outward of the first stator core, and a first rotor holding member that couples the first rotor core and the sun gear shaft.

A toroidal continuously variable transmission of the present invention comprises: input side disks () and output side disks () being supported concentric with each other such that the disks can rotate freely; a trunnion () that comprises end sections () on both ends on which tilt shafts () that are concentric with each other are provided, and a support beam section () that extends between both end sections (), the trunnion () being capable of pivotally displacing around the tilt shafts (); a thrust rolling bearing (); and a power roller () that is supported to the inside surface of the trunnion () by way of the thrust rolling bearing () such that it rotates freely; wherein the support beam section () comprises an inside surface having a cylindrical convex surface (); the thrust rolling bearing () comprises an outer race () having an outside surface with a concave section () that fits with the cylindrical convex surface () of the support beam section (), and a plurality of rolling bodies () that are located between the power roller () and a track of an outer race (); and the concave section () of the outer race () has side surface sections () on both sides in the width direction, fits with the cylindrical convex surface () by the cylindrical convex surface () coming in contact with both side surface sections ().

Growing community of inventors

Kanagawa, Japan

Shin Yamamoto