公开(公告)号：USD829792S1

公开(公告)日：2018-10-02

申请号：US29574619

申请日：2016-08-17

Applicant: NTN Corporation

Designer： Takushi Matsutou ,  Shinsuke Hirano ,  Atsushi Ikeda ,  Tomomi Ishikawa

公开(公告)号：US11162565B2

公开(公告)日：2021-11-02

申请号：US16084031

申请日：2017-03-24

Applicant: NTN CORPORATION

Inventor： Takushi Matsuto ,  Shinsuke Hirano ,  Atsushi Ikeda ,  Tomomi Ishikawa ,  Yoshinori Ikeda

IPC: H02K7/116 ,  F16H25/24 ,  B60T1/00 ,  F16H25/22 ,  H02K7/06 ,  F16D121/24 ,  F16H25/20

Abstract: Provided is an electric actuator, including: a drive part (2); a motion conversion mechanism part (3) configured to convert a rotary motion from the drive part (2) into a linear motion in an axial direction in parallel to an output shaft of the drive part (2); and a lock mechanism part (7) configured to prevent drive by the motion conversion mechanism part (3). The lock mechanism part (7) includes: a rotary motor (64); and a lock member (60), which is driven by the rotary motor (64) so as to be brought into at least any one of a locking state of preventing the drive by the motion conversion mechanism part (3) and an unlocking state of releasing the locking state.

公开(公告)号：US11054016B2

公开(公告)日：2021-07-06

申请号：US16082966

申请日：2017-03-22

Applicant: NTN CORPORATION

Inventor： Takushi Matsuto ,  Shinsuke Hirano ,  Atsushi Ikeda ,  Tomomi Ishikawa

IPC: F16H57/025 ,  H02K7/06 ,  H02K7/116 ,  F16H25/22 ,  F16H25/20 ,  F16H25/24 ,  F16H57/02 ,  F16H57/021 ,  F16D65/14

Abstract: Provided is an electric actuator, including: a drive part (2); a motion conversion mechanism part (3) configured to convert a rotary motion from the drive part (2) into a linear motion in an axial direction parallel with an output shaft of the drive part (2); a driving force transmission part (4) configured to transmit a driving force from the drive part (2) to the motion conversion mechanism part (3); and a motion-conversion-mechanism support part (5) configured to support the motion conversion mechanism part (3), and wherein the drive part (2) and the motion-conversion-mechanism support part (5) are capable of being coupled to and decoupled from the driving force transmission part (4).

公开(公告)号：US10718412B2

公开(公告)日：2020-07-21

申请号：US16085078

申请日：2017-03-24

Applicant: NTN CORPORATION

Inventor： Takushi Matsuto ,  Shinsuke Hirano ,  Atsushi Ikeda ,  Tomomi Ishikawa

IPC: F16H25/24 ,  G01D5/245 ,  H02K7/06 ,  G01D5/12 ,  F16H25/20 ,  F16H25/22

Abstract: A sensor target of the present invention is mounted to a movable part (24), which is arranged in parallel with an output shaft (10a) of a motor (10), and is configured to perform a linear motion in a direction parallel to the output shaft (10a). The sensor target includes a magnet (73) and a magnet holder (74) configured to hold the magnet (73). One pair or a plurality of pairs of fitting claws (741) capable of being fitted to an outer peripheral surface of the movable part (24) are formed on the magnet holder (74).

公开(公告)号：US11149829B2

公开(公告)日：2021-10-19

申请号：US16084026

申请日：2017-03-24

Applicant: NTN CORPORATION

Inventor： Takushi Matsuto ,  Shinsuke Hirano ,  Atsushi Ikeda ,  Tomomi Ishikawa ,  Yoshinori Ikeda ,  Tatsuji Inoue

IPC: F16H25/24 ,  F16H25/22 ,  H02K7/06 ,  H02K7/116 ,  F16H25/20

Abstract: Provided is an electric actuator including: a drive part (2); a motion conversion mechanism part (3) configured to convert a rotary motion from the drive part (2) into a linear motion a transmission gear mechanism (28) configured to transmit a driving force from the drive part (2) to the motion conversion mechanism part (3); and a lock mechanism part (7) configured to prevent the drive by the motion conversion mechanism part (3), wherein the transmission gear mechanism (28) includes a first gear (30) arranged on the drive part (2) side and a second gear (31) arranged on the motion conversion mechanism part (3) side, and wherein the lock mechanism part (7) is arranged on an opposite side of the drive part (2) with respect to the first gear (30), and on the motion conversion mechanism part (3) side with respect to a rotation center line of the first gear (30).

公开(公告)号：US10670085B2

公开(公告)日：2020-06-02

申请号：US15752721

申请日：2016-08-23

Applicant: NTN CORPORATION

Inventor： Takahide Saito ,  Koji Sato ,  Masahiro Kawai ,  Atsushi Ikeda

IPC: F16D23/12 ,  F16D23/14 ,  F16D13/40 ,  F16H25/12 ,  F16D13/56 ,  F16D28/00 ,  F16H1/16

Abstract: An automatic clutch device includes an axial force generating mechanism including an electric motor arranged adjacent to the outer periphery of an end of an input shaft of a transmission, and a rotation-linear motion conversion mechanism for converting the rotation of the rotor of the electric motor to a linear motion of a release bearing. The rotation-linear motion conversion mechanism includes plural annular cam plates arranged in tandem on the input shaft, and torque cam mechanisms each disposed between each opposed pair of cam plates, for reduced size and improved responsiveness of the automatic clutch device.

公开(公告)号：US11476732B2

公开(公告)日：2022-10-18

申请号：US16762588

申请日：2018-11-27

Applicant: NTN Corporation

Inventor： Takushi Matsuto ,  Akio Kato ,  Atsushi Ikeda

IPC: H02K5/10 ,  H02K11/33 ,  H02K7/00

Abstract: An electric actuator includes: an electric motor 2, a relay circuit 3 that switches ON/OFF of power supply to the electric motor 2, a motion conversion mechanism 4 that converts a rotary motion of the electric motor 2 into a motion in a direction different therefrom and outputs the motion, and a housing 1. The housing 1 is configured by joining two housing split bodies 1a and 1b to each other, and in an internal space formed by joining the two housing split bodies 1a and 1b, the electric motor 2, the relay circuit 3, and the motion conversion mechanism 4 are housed.

公开(公告)号：US11152840B2

公开(公告)日：2021-10-19

申请号：US16089786

申请日：2017-03-24

Applicant: NTN CORPORATION

Inventor： Takushi Matsuto ,  Shinsuke Hirano ,  Atsushi Ikeda ,  Tomomi Ishikawa

IPC: F16H25/20 ,  H02K11/01 ,  H02K7/06 ,  G01B7/00 ,  F16H25/24 ,  H02K11/215 ,  F16D3/84 ,  F16H25/22 ,  F16H57/02 ,  G01D5/14 ,  H02K5/10

Abstract: Provided is an electric actuator (1), including: a motor (10); a motor case (11) configured to accommodates the motor (10); and a motion conversion mechanism (22) configured to convert a rotary motion generated through drive by the motor (10) into a linear motion in a direction parallel to an output shaft (10a) of the motor (10). The motion conversion mechanism (22) includes a movable part (22, which is arranged in parallel with the output shaft (10a) and is configured to perform the linear motion. The movable part (22) and the motor (10) overlap one another in a radial direction of the motor (10). A sensor target (73) is arranged in the moveable part 22, and a non-contact sensor (70) configured to detect a position of the sensor target (73) in a linear motion direction in a non-contact manner is arranged in the motor case (11).

公开(公告)号：US11215266B2

公开(公告)日：2022-01-04

申请号：US16082963

申请日：2017-03-22

Applicant: NTN CORPORATION

Inventor： Takushi Matsuto ,  Shinsuke Hirano ,  Atsushi Ikeda ,  Tomomi Ishikawa

IPC: F16H25/22 ,  F16H25/20 ,  B62D5/04 ,  B62D33/07 ,  F16C19/18 ,  F16H25/24

Abstract: An electric actuator includes: a drive part (2); a motion conversion mechanism part (3) configured to convert a rotary motion from the drive part (2) to a linear motion in an axial direction parallel with an output shaft (10a) of the drive part (2); a driving force transmission part (4) including a transmission gear mechanism (28) configured to transmit a driving force from the drive part (2) to the motion conversion mechanism part (3); and a motion-conversion-mechanism support part (5) including a double-row bearing (40) configured to support the motion conversion mechanism part (3), wherein the double-row bearing (40) is arranged on one side in the axial direction with respect to the transmission gear mechanism (28).