公开(公告)号：US20190229588A1

公开(公告)日：2019-07-25

申请号：US16375019

申请日：2019-04-04

Applicant: DENSO CORPORATION

Inventor： Yuuya TAKAHASHI ,  Kiyoshi KIMURA ,  Kenichi OISHI ,  Mikine KUME ,  Toru TABUCHI

IPC: H02K11/215 ,  F16H61/32 ,  F16H1/32 ,  G01D5/245 ,  H02K7/00 ,  H02K7/116

Abstract: An output shaft includes a shaft hole with which a shaft is fittable, rotates by torque output from a motor, and outputs torque to the shaft. A magnet holder includes a holder hole with which the shaft is fittable and is rotatable together with the shaft. A magnet is disposed on the magnet holder. An angle sensor is capable of detecting magnetic flux from the magnet and outputs a signal corresponding to a rotation angle of the magnet holder. A play amount between the shaft and the shaft hole is set to a first predetermined value or larger. A play amount between the shaft and the holder hole is set to a second predetermined value or smaller.

公开(公告)号：US20230015043A1

公开(公告)日：2023-01-19

申请号：US17944532

申请日：2022-09-14

Applicant: DENSO CORPORATION

Inventor： Toru TABUCHI

IPC: H02K5/10 ,  H02K5/173 ,  H02K7/116

Abstract: A rotary actuator includes a motor, a speed reducer configured to output after reducing a rotation of a rotary shaft of the motor, and a housing accommodating the motor and the speed reducer. The rotary actuator includes a bearing having an inner ring fixed to the rotary shaft and rotatably supporting the rotary shaft, and a cylindrical outer ring fixing portion integrally provided on the housing so as to fix an outer ring of the bearing. A front housing has a jig insertion hole into which an inner ring receiving jig can be inserted, and the jig insertion hole has an opening that overlaps with at least a part of one end surface of the inner ring in view from an axial direction.

公开(公告)号：US20170152943A1

公开(公告)日：2017-06-01

申请号：US15363226

申请日：2016-11-29

Applicant: DENSO CORPORATION

Inventor： Mikine KUME ,  Toru TABUCHI

IPC: F16H61/32 ,  H02K11/30 ,  H02K11/215 ,  F16H57/02 ,  H02K7/116

CPC classification number: F16H61/32 ,  F16H57/02 ,  F16H2057/02034 ,  F16H2061/326 ,  H02K7/116 ,  H02K11/215 ,  H02K11/33

Abstract: An output portion is formed integrally with an output gear made of a magnetic material and is rotated integrally with the output gear. A yoke is placed at the output gear and includes first and second yokes. An arcuate gap, which extends along an arc that is centered at a rotational center of the output gear, is formed between the first yoke and the second yoke. A magnet is installed between one end of the first yoke and one end of the second yoke. Another magnet is installed between another end of the first yoke and another end of the second yoke. A Hall IC is placed in the arcuate gap and is movable relative to the yoke. Primary holes are formed between the rotational center and the yoke such that the primary holes extend through the output gear in a plate thickness direction of the output gear.

公开(公告)号：US20160084348A1

公开(公告)日：2016-03-24

申请号：US14861365

申请日：2015-09-22

Applicant: DENSO CORPORATION

Inventor： Toru TABUCHI ,  Seiji NAKAYAMA

IPC: F16H1/32

CPC classification number: F16H1/32 ,  F16H55/08 ,  F16H2001/325 ,  F16H2055/0893

Abstract: Each of gear teeth of an external gear has a tooth-bottom portion, a tooth-middle portion and a tooth-front portion. The tooth-middle portion is operatively engaged with an internal gear. A cross-sectional shape of the tooth-bottom portion is formed by a hypocycloid curved line. A cross-sectional shape of the tooth-middle portion is formed by an epicycloid curved line. A cross-sectional shape of the tooth-front portion is formed by a first predetermined curved line, which is located at a position closer to a first pitch circle of the external gear in a radial-inward direction from a reference epicycloid curved line. The reference epicycloid curved line is continuously connected to each of the curved lines of the tooth-middle portion at both circumferential sides of each gear tooth. As a result, the tooth-front portion is so formed that a part of the tooth-front portion is escaped in the radial-inward direction from the reference epicycloid curved line.

Abstract translation: 外齿轮的齿轮齿分别具有齿底部，齿中间部和齿前部。 齿中间部分与内部齿轮可操作地接合。 齿底部的横截面形状由下摆形曲线形成。 齿 - 中间部分的横截面形状由外绕线曲线形成。 齿前部的截面形状由第一预定曲线形成，该第一预定曲线位于比基准外绕线曲线在径向向内方向更靠近外齿轮的第一节圆的位置。 参考外周线曲线在每个齿轮齿的两个圆周侧连续地连接到齿 - 中间部分的每个曲线。 结果，齿前部形成为使得齿前部的一部分从基准外绕线曲线沿径向向内的方向逃逸。