公开(公告)号：US20180320770A1

公开(公告)日：2018-11-08

申请号：US15772277

申请日：2015-11-17

Applicant: HARMONIC DRIVE SYSTEMS INC.

Inventor： Jun HANDA ,  Hiroaki KIMURA ,  Sotaro MIYAKE

IPC: F16H49/00

CPC classification number: F16H49/001 ,  F16H1/32 ,  F16H2049/003

Abstract: A foreign-matter intrusion preventing mechanism of a strain wave gearing is provided with a filter attachment plate attached to a wave generator plug and a filter attached to the ellipsoidal outer peripheral surface of the filter mounting plate. Lubricant flows, via the filter, between a wave generator bearing and a meshing portion between an external gear and an internal gear. Foreign matters included in the lubricant are captured by the filter. Because the filter is in contact with the inner peripheral surface of an external-tooth forming portion of the external gear, foreign matters can be assuredly prevented from intruding into a sliding friction portion between an outer-ring outer peripheral surface of the wave generator bearing and the inner peripheral surface of the external-tooth forming portion of the external gear.

公开(公告)号：US20160201783A1

公开(公告)日：2016-07-14

申请号：US14901237

申请日：2013-07-04

Applicant: HARMONIC DRIVE SYSTEMS INC.

Inventor： Sotaro MIYAKE ,  Yoshihide KIYOSAWA

IPC: F16H49/00

CPC classification number: F16H49/001 ,  F16H2049/003

Abstract: A press plate is tacked to a boss of a cup-shaped flexible externally toothed gear of a wave gear device unit. A second arm as a driven member is attached by a fastening bolt to an end surface on an outer side of an output flange of the wave gear device unit. The fastening bolt is screwed into and secured in a tap hole of the press plate from each bolt insertion hole of the second arm, via a flange-side bolt insertion hole and a boss-side bolt insertion hole. A fastening structure can be achieved in which a driven member is fastened to a wave gear device unit in which holes are easily machined into the output flange, and only a few fastening bolts are needed to fasten the boss, the output flange, and the driven member.

Abstract translation: 压板被固定到波齿轮装置单元的杯形柔性外齿轮的凸台上。 作为从动构件的第二臂通过紧固螺栓附接到波齿轮装置单元的输出凸缘的外侧的端面。 紧固螺栓通过法兰侧螺栓插入孔和凸起侧螺栓插入孔从第二臂的每个螺栓插入孔旋入并固定在压板的抽出孔中。 可以实现紧固结构，其中从动构件紧固到波形齿轮装置单元中，其中孔容易加工到输出法兰中，并且仅需要几个紧固螺栓来紧固凸台，输出凸缘和被驱动 会员。

公开(公告)号：US20180363750A1

公开(公告)日：2018-12-20

申请号：US15781751

申请日：2015-12-11

Applicant: HARMONIC DRIVE SYSTEMS INC.

Inventor： Jun HANDA ,  Hiroaki KIMURA ,  Sotaro MIYAKE

IPC: F16H49/00 ,  F16H57/021

Abstract: A restraint mechanism for limiting the movement of the flexible external gear of a flat strain wave gearing in the axial direction has a first restraining member installed in a floating state in a first recess and a second restraining member installed in a floating state in a second recess. The restraining member is able to limit the movement of the flexible external gear in the axial direction to a range in which there are no difficulties during actual use. Moreover, compared with when movement of the flexible external gear is limited using members that are disposed at fixed positions, it is possible to reduce the sliding abrasion that occurs between the flexible external gear and the first and second restraining members.

公开(公告)号：US20180245678A1

公开(公告)日：2018-08-30

申请号：US15753600

申请日：2015-09-17

Applicant: Harmonic Drive Systems Inc.

Inventor： Jun HANDA ,  Sotaro MIYAKE ,  Hiroaki KIMURA ,  Hideo YASUE

IPC: F16H49/00 ,  F16H1/00

CPC classification number: F16H49/001 ,  F16H1/00

Abstract: A wave generator for a strain wave gearing makes a flexible externally toothed gear to flex into an elliptical shape and mesh with rigid internally toothed gears, and makes meshing positions of the flexible externally toothed gear with the both gears to move in a circumferential direction. On the inner side of a rigid plug of the wave generator, a plug support ring is secured and integrated. The rigid plug is formed from an iron-based material, and the plug support ring is formed from a high-rigidity material that is more rigid than the iron-based material. Since deformation of the rigid plug is suppressed, the wave generator provided with a large hollow part can be obtained.

公开(公告)号：US20180187764A1

公开(公告)日：2018-07-05

申请号：US15740183

申请日：2015-07-07

Applicant: Harmonic Drive Systems Inc.

Inventor： Jun HANDA ,  Hiroaki KIMURA ,  Sotaro MIYAKE

IPC: F16H49/00 ,  F16C19/16 ,  F16C33/38

CPC classification number: F16H49/001 ,  F16C19/16 ,  F16C33/38 ,  F16C2361/61

Abstract: A wave generator of a flat-type strain wave gearing has an insertion member disposed between two wave bearings. The insertion member is pressed into an elliptical outer peripheral surface of a plug and is fixed thereto by an adhesive. An inner ring contact part of the insertion member is in contact with inner rings of the wave bearings from the direction of a center axis. When the flat-type strain wave gearing is in an operating state, the wave bearings can be prevented from moving relative to the plug in the direction of the center axis by means of thrust force acting on the wave bearings.

公开(公告)号：US20180180146A1

公开(公告)日：2018-06-28

申请号：US15738172

申请日：2015-07-07

Applicant: Harmonic Drive Systems Inc.

Inventor： Jun HANDA ,  Hiroaki KIMURA ,  Sotaro MIYAKE

IPC: F16H35/10 ,  F16H49/00

CPC classification number: F16H35/10 ,  F16H49/001 ,  F16H2049/003

Abstract: In a rotation transmission mechanism that transmits the rotational driving force of a motor to a load-side member via a speed reducer, a strain wave gearing is used as the speed reducer, and the allowable load torque of members in the powertrain other than the strain wave gearing is greater than a predetermined upper-limit load torque. The allowable load torque of the strain wave gearing is dictated by the ratcheting torque, which is set so as not to exceed the upper-limit load torque. In an overload state, ratcheting is generated in the strain wave gearing, so that the strain wave gearing functions as a mechanical fuse. Other power transmission members can be protected from an overload state without adding a separate member such as a torque limiter.

公开(公告)号：US20210033178A1

公开(公告)日：2021-02-04

申请号：US17076364

申请日：2020-10-21

Applicant: HARMONIC DRIVE SYSTEMS INC.

Inventor： Jun HANDA ,  Hiroaki KIMURA ,  Sotaro MIYAKE

IPC: F16H35/10 ,  F16H49/00

Abstract: In a rotation transmission mechanism that transmits the rotational driving force of a motor to a load-side member via a speed reducer, a strain wave gearing is used as the speed reducer, and the allowable load torque of members in the powertrain other than the strain wave gearing is greater than a predetermined upper-limit load torque. The allowable load torque of the strain wave gearing is dictated by the ratcheting torque, which is set so as not to exceed the upper-limit load torque. In an overload state, ratcheting is generated in the strain wave gearing, so that the strain wave gearing functions as a mechanical fuse. Other power transmission members can be protected from an overload state without adding a separate member such as a torque limiter.

公开(公告)号：US20210033177A1

公开(公告)日：2021-02-04

申请号：US17076194

申请日：2020-10-21

Applicant: HARMONIC DRIVE SYSTEMS INC.

Inventor： Jun HANDA ,  Hiroaki KIMURA ,  Sotaro MIYAKE

IPC: F16H35/10 ,  F16H49/00

Abstract: In a rotation transmission mechanism that transmits the rotational driving force of a motor to a load-side member via a speed reducer, a strain wave gearing is used as the speed reducer, and the allowable load torque of members in the powertrain other than the strain wave gearing is greater than a predetermined upper-limit load torque. The allowable load torque of the strain wave gearing is dictated by the ratcheting torque, which is set so as not to exceed the upper-limit load torque. In an overload state, ratcheting is generated in the strain wave gearing, so that the strain wave gearing functions as a mechanical fuse. Other power transmission members can be protected from an overload state without adding a separate member such as a torque limiter.