公开(公告)号：US20240271695A1

公开(公告)日：2024-08-15

申请号：US18169316

申请日：2023-02-15

Applicant: The Boeing Company

Inventor： Christopher J. Heiberg ,  Dong Ngo

IPC: F16H57/04 ,  B64C13/34 ,  F16H1/16 ,  F16H55/22

CPC classification number: F16H57/0498 ,  B64C13/34 ,  F16H1/16 ,  F16H55/22 ,  F16H57/0423 ,  F16H57/0427

Abstract: Methods and apparatus to passively lubricate a worm gear assembly are disclosed herein. An example worm gear assembly includes a housing defining an internal cavity, a worm gear in the internal cavity of the housing, and a worm wheel in the internal cavity of the housing. The worm wheel is meshed with the worm gear. The worm wheel includes a first side surface, a second side surface opposite the first side surface, a peripheral edge with a plurality of teeth between the first side surface and the second side surface, and a vane on the first side surface. The vane extends radially between a center of the first side surface and the peripheral edge. The vane is to move lubricant from a bottom of the housing to the worm gear to lubricate an interface between the worm gear and the worm wheel.

公开(公告)号：US11965588B2

公开(公告)日：2024-04-23

申请号：US17325575

申请日：2021-05-20

Applicant: HIRSCHVOGEL UMFORMTECHNIK GMBH

Inventor： Roland Ruf ,  Johannes Grimm ,  Gordon Triesch

IPC: F16H55/08 ,  F16H55/22 ,  F16D1/10 ,  F16H48/08 ,  F16H48/38

CPC classification number: F16H55/22 ,  F16H55/08 ,  F16D2001/103 ,  F16H48/08 ,  F16H48/38

Abstract: A gearwheel includes a gearwheel body with teeth arranged around its rotational axis. Two adjacent teeth are connected to one another at their tooth roots via a tooth base. The gearwheel includes a supporting structure which has a supporting region at least one or both axial ends of the respective tooth base, which supporting region extends away from the tooth base between the respective adjacent teeth. The supporting regions are connected directly to the adjacent teeth and the tooth base in each case by way of a transition region. The respective transition region surrounds the supporting region in a manner which extends at least partially and contiguously and has a transition geometry in cross section as viewed in the direction of its extent. A geometric variable of the said transition geometry changes steadily, depending on the supporting region, along an axial and/or radial direction with regard to the rotational axis.

公开(公告)号：US11843307B2

公开(公告)日：2023-12-12

申请号：US17335361

申请日：2021-06-01

Applicant: Nidec Corporation

Inventor： Hideki Nishimura ,  Tomohiro Hasegawa ,  Hiroaki Hirano ,  Yoichi Sekii

IPC: H02K5/173 ,  H02K7/116 ,  H02K21/22 ,  H02K7/08 ,  F16H1/16 ,  F16H55/22

CPC classification number: H02K7/1166 ,  H02K5/1737 ,  H02K7/088 ,  H02K21/22 ,  F16H1/16 ,  F16H55/22

Abstract: A motor includes a stator, a rotor, and a bearing. The stator includes a shaft that extends in a vertical direction. The rotor is rotatable around the shaft. The bearing supports the rotor in a rotatable manner. The rotor includes a magnet, a case, and a tooth groove. The magnet is radially outward of the stator and opposes the stator in a radial direction. The case covers a radially outer end of the magnet. The tooth groove is provided in a radially outer surface of the case.

公开(公告)号：US11820440B2

公开(公告)日：2023-11-21

申请号：US16891000

申请日：2020-06-02

Applicant: ZF Automotive Germany GmbH

Inventor： Guido Liesenfeld

IPC: B62D5/04 ,  F16H1/16 ,  F16H55/22 ,  F16H57/021

CPC classification number: B62D5/0421 ,  F16H1/16 ,  F16H55/22 ,  F16H2057/0213

Abstract: An electromechanically assisted steering system is proposed, having a worm drive which comprises a worm shaft and a worm gear, an electric motor which has a drive shaft, and a spring element. At an end assigned to the electric motor, the worm shaft has a first bearing portion which is connected to the drive shaft in a torque-transmitting manner. The worm shaft has a second bearing portion which is arranged at an end of the worm shaft remote from the first bearing portion. The spring element is connected to the first bearing portion or to the second bearing portion so as to transmit axial force in the axial direction, such that the spring element axially pretensions the worm shaft relative to the worm gear. A tolerance compensation of the worm drive in the axial direction of the worm shaft is carried out exclusively via the spring element.

公开(公告)号：US11804753B2

公开(公告)日：2023-10-31

申请号：US17335361

申请日：2021-06-01

Applicant: Nidec Corporation

Inventor： Hideki Nishimura ,  Tomohiro Hasegawa ,  Hiroaki Hirano ,  Yoichi Sekii

IPC: H02K5/173 ,  H02K7/116 ,  H02K21/22 ,  H02K7/08 ,  F16H1/16 ,  F16H55/22

CPC classification number: H02K7/1166 ,  H02K5/1737 ,  H02K7/088 ,  H02K21/22 ,  F16H1/16 ,  F16H55/22

Abstract: A motor includes a stator, a rotor, and a bearing. The stator includes a shaft that extends in a vertical direction. The rotor is rotatable around the shaft. The bearing supports the rotor in a rotatable manner. The rotor includes a magnet, a case, and a tooth groove. The magnet is radially outward of the stator and opposes the stator in a radial direction. The case covers a radially outer end of the magnet. The tooth groove is provided in a radially outer surface of the case.

公开(公告)号：US11719324B2

公开(公告)日：2023-08-08

申请号：US17422277

申请日：2019-12-24

Applicant: MINEBEA MITSUMI Inc.

Inventor： Koichiro Hirabayashi

IPC: F16H55/22 ,  F16H25/16 ,  F16H55/06 ,  F16H25/24

CPC classification number: F16H55/22 ,  F16H25/16 ,  F16H55/06 ,  F16H2025/249

Abstract: A worm (40) according to an embodiment is a worm made of resin and formed by injection molding. The worm includes a gear portion (40a), a cavity (40c) having an axis being a longitudinal axis (40d) of the worm being formed at the gear portion, and a top portion (40b) formed at a first end portion of the gear portion in a direction of the longitudinal axis. A plurality of recesses (40e) including a hole portion communicating with the cavity are formed at the top portion in a radial direction, and are located on an outer peripheral portion side of the gear portion with respect to the cavity.

公开(公告)号：US11719323B2

公开(公告)日：2023-08-08

申请号：US16767460

申请日：2018-11-20

Applicant: MOOG GmbH

Inventor： Daniel Eitelbuss

IPC: F16H55/20 ,  F16H55/22 ,  F16H57/022 ,  F16H57/12

CPC classification number: F16H55/22 ,  F16H57/022 ,  F16H2057/127

Abstract: The invention relates to a worm drive comprising a worm shaft and a first receiving unit. The worm shaft is rotatably mounted in the first receiving unit. Furthermore, the worm drive comprises a worm wheel and a second receiving unit. The worm wheel is rotatably mounted in the second receiving unit. The first receiving unit is arranged on the second receiving unit and the rotatably mounted worm shaft is in contact with the worm wheel of the second receiving unit in order to transmit a torque. Furthermore, the worm drive comprises guide pins for detachably connecting the first receiving unit to the second receiving unit. More particularly, the first receiving unit receives at least part of the guide pins and the second receiving unit is connected to one of the guide pins, preferably to a first end of the guide pin. A spring element is arranged on a second end of the guide pin between the first receiving unit and a fastening means.

公开(公告)号：US20230243411A1

公开(公告)日：2023-08-03

申请号：US17649427

申请日：2022-01-31

Applicant: WAGSTAFF, INC.

Inventor： Brett THIELMAN ,  Craig CORDILL

IPC: F16H55/22 ,  F16H57/039 ,  B22D11/049

CPC classification number: F16H55/22 ,  F16H57/039 ,  B22D11/049

Abstract: The present invention relates to a system and apparatus for application of force in a compact form factor. An apparatus for application of force includes: a worm gear; a worm wheel gear engaged with the worm gear; a gear shaft coaxial to the worm gear and rotatably coupled to the worm wheel gear; a first threaded hole proximate a first end of the gear shaft; a second threaded hole proximate a second end of the gear shaft opposite the first end; a first threaded shaft received by the first threaded hole; and a second threaded shaft received by the second threaded hole, where the first threaded shaft and the second threaded shaft are configured to advance toward one another and away from one another responsive to rotation of the worm gear.

公开(公告)号：US10012274B2

公开(公告)日：2018-07-03

申请号：US14428129

申请日：2013-05-30

Applicant: iRevo, Inc.

Inventor： Sung Phil Jo ,  Dong Ho Paek

IPC: F16D43/02 ,  E05B63/00 ,  F16H35/10 ,  E05B47/00 ,  E05B65/10 ,  F16H55/22

CPC classification number: F16D43/02 ,  E05B47/0012 ,  E05B63/0065 ,  E05B65/10 ,  E05B2047/002 ,  E05B2047/0026 ,  F16H35/10 ,  F16H55/22

Abstract: Disclosed is a pin clutch connection structure of an anti-panic gear box, wherein the transmission of rotation to a driving motor which is mounted on a gear box is blocked when rotational force is applied from the outside (manual opening and closing of a door lock), so as to prevent a driving circuit in the gear box from being damaged and to enable manual opening and closing even with a small amount of force.

公开(公告)号：US20180105197A1

公开(公告)日：2018-04-19

申请号：US15799551

申请日：2017-10-31

Applicant: Steering Solutions IP Holding Corporation

Inventor： Jeffrey E. Beyerlein ,  Alan G. Turek ,  Jesse A. Heather

IPC: B62D3/04 ,  F16H55/06 ,  B62D5/04

CPC classification number: B62D3/04 ,  B21K1/30 ,  B23P15/14 ,  B29C65/44 ,  B29C66/0344 ,  B29C66/74283 ,  B29C70/74 ,  B29K2305/12 ,  B29L2015/003 ,  B62D5/0409 ,  F16H55/06 ,  F16H55/17 ,  F16H55/22 ,  F16H2055/065 ,  Y10T29/49469 ,  Y10T74/1987

Abstract: A method of making a worm gear. The method includes forming a gear blank having a plurality of individual lugs formed about an outer circumferential edge of said blank to facilitate a uniform flow of a material around said plurality of individual lugs. The method also includes molding said material around said plurality of individual lugs to form a ring.