公开(公告)号：US20240102533A1

公开(公告)日：2024-03-28

申请号：US17754646

申请日：2020-09-03

Applicant: ContiTech Antriebssysteme GmbH

Inventor： Thomas Melz ,  Heiko Sattler

IPC: F16G1/28 ,  F16H55/17 ,  F16H55/18

CPC classification number: F16G1/28 ,  F16H55/171 ,  F16H55/18

Abstract: Toothed belt drive with a toothed belt and at least two toothed pulleys, wherein the toothed belt has at least one drive side provided with a toothed profile, the toothed belt wraps around the toothed pulleys over a partial area of their circumference and the teeth of the toothed belt meshingly engage in the tooth gaps of the toothed pulleys, wherein at least one of the toothings on the belt or pulley is formed as a series of tooth pitches varying along the circumference, wherein



the individual tooth pitches are designed to vary by up to a maximum of 5% relative to the mean tooth pitch on the belt or pulley, and
the absolute deviation of a varied tooth pitch from the mean tooth pitch on the belt or pulley is limited by the backlash of the toothing,

wherein the backlash ES results from the difference of the width eS of the tooth gaps of the respective toothed pulley and the width eR of the teeth of the toothed belt in the middle of the tooth height of the teeth of the toothed belt.

公开(公告)号：US20230003291A1

公开(公告)日：2023-01-05

申请号：US17810016

申请日：2022-06-30

Applicant: Optisys, Inc.

Inventor： Robert Smith ,  Daniel Ricks ,  Jacob Morrise

IPC: F16H55/18

Abstract: Anti-backlash gears and anti-backlash gear systems. A gear includes a plurality of compliant members extending outward to form at least a portion of the gear. The gear is such that each of the plurality of compliant members is configured to elastically deform when exposed to an applied force

公开(公告)号：US11448303B2

公开(公告)日：2022-09-20

申请号：US16637091

申请日：2018-08-07

Applicant: MITAKA DENSHI CO., LTD.

Inventor： Ken'Ichi Kobayashi

IPC: F16H55/06 ,  F16H55/17 ,  F16H55/18

Abstract: A gear component has an annular form, is made of a metal, and includes tooth portions and a support portion which supports the tooth portions. The tooth portions are provided on an outside of the support portion along an entire circumference thereof, and groove portions are provided along a width direction of the gear component evenly on an annular inner surface of the support portion. At least one groove portion is provided per one tooth portion or two or more adjacent tooth portions, and each groove portion is located to correspond to a position where one tooth portion is present on the support portion.

公开(公告)号：US11378175B2

公开(公告)日：2022-07-05

申请号：US16736210

申请日：2020-01-07

Applicant: DENSO CORPORATION

Inventor： Masashi Yamaguchi ,  Etsugo Yanagida ,  Tetsuji Yamanaka ,  Atsushi Tanaka ,  Naoaki Kono ,  Kunio Namba

IPC: F16H57/032 ,  H02K7/116 ,  F16H55/17 ,  F16H55/06 ,  F16H57/02 ,  F16H55/18

Abstract: An actuator includes an electric motor, an output shaft and a speed reducer. The speed reducer is configured to transmit rotation, which is outputted from the motor, to the output shaft after reducing a speed of the rotation outputted from the motor. The speed reducer includes an output gear joined to the output shaft and a compound gear. The compound gear includes a large diameter gear, which has a plurality of large gear teeth, and a small diameter gear, which has a plurality of small gear teeth. One of the large diameter gear and the small diameter gear is a metal gear, which is made of a metal member, while another one of the large diameter gear and the small diameter gear is a resin gear, which is made of a resin member, and the resin gear is integrally molded together with the metal gear in one piece.

公开(公告)号：US20220056986A1

公开(公告)日：2022-02-24

申请号：US17402664

申请日：2021-08-16

Applicant: SHIROKI CORPORATION

Inventor： Mitsugu TANIGUCHI ,  Masayuki SHIBATA

IPC: F16H1/16 ,  F16H37/04 ,  F16H55/18

Abstract: A gear device includes a housing, a cover, and a positioning portion. The cover includes a first bearing that receives a first shaft and a second bearing that receives a second shaft. The positioning portion includes a projection that projects from one of the housing or the cover parallel to the first shaft or the second shaft and a fitting hole that is formed in the other one of the housing or the cover to receive the projection. The projection has a length that is set so that when coupling the cover to the housing, in a state in which the first shaft is inserted through the first bearing, the projection enters the fitting hole before the distal end of the second shaft enters the second bearing.

公开(公告)号：US11168777B2

公开(公告)日：2021-11-09

申请号：US16328508

申请日：2017-08-16

Applicant: CUMMINS INC.

Inventor： Kwin Abram ,  David J. Moenssen

IPC: F16H55/18 ,  F02B67/04 ,  F16H57/022

Abstract: An apparatus includes a crankshaft gear operatively coupled to an engine. An auxiliary gear is operatively coupled to the engine. An idler gear is operatively coupled to the engine, and is in meshed engagement with each of the crankshaft gear and the auxiliary gear. A ring dowel is fixedly coupled to an engine block. An idler hub has an inner surface and an outer surface. The inner surface is fixedly coupled to the ring dowel and the idler gear is rotatably coupled to the outer surface. The idler hub is eccentrically-shaped so that an idler gear centerline is offset from a ring dowel centerline so as to reduce a crankshaft backlash between the crankshaft gear and the idler gear relative to a nominal crankshaft backlash, and so as to substantially maintain an auxiliary backlash between the auxiliary gear and the idler gear relative to a nominal auxiliary backlash.

公开(公告)号：US11046067B2

公开(公告)日：2021-06-29

申请号：US16311910

申请日：2017-06-15

Applicant: I.MER CO., LTD.

Inventor： Masayuki Izume

IPC: B41F13/012 ,  B41F13/14 ,  F16H55/18 ,  B41F13/00

Abstract: Plate cylinder driving devices of a printing machine are provided with a drive shaft driving the plate cylinder, a drive helical gear fixed to the drive shaft, and an anti-backlash helical gear rotatably connected to the drive shaft and is biased by at least a spring towards a direction for preventing backlash. Both the drive helical gear and the anti-backlash helical gear are engaged with the main gear, and a plate provided with plural holes accommodating rollers is provided between the drive helical gear and the anti-backlash helical gear. Friction between the anti-backlash gear and the drive gear is reduced by a simple mechanism in the plate cylinder driving devices in a printing machine.

公开(公告)号：US20200056692A1

公开(公告)日：2020-02-20

申请号：US16662752

申请日：2019-10-24

Applicant: ContiTech USA, Inc.

Inventor： Frank Feuerborn ,  Mike Janne

IPC: F16H55/18

Abstract: An arrangement including a bushing having a bushing hub, a bushing flange, a housing containing a uni-directional bearing, an axle extending outward from the uni-directional bearing, and a stationary torque arm attached to the axle of the bushing. The bushing hub is inserted into a recessed hub section of a sprocket, and securely connected to the sprocket. The arrangement may also include a driven device attached to the bushing hub, and an endless drive belt and motor.

公开(公告)号：US10533904B2

公开(公告)日：2020-01-14

申请号：US15564091

申请日：2017-04-20

Applicant: DAEGU GYEONGBUK INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Sehoon Oh ,  Chan Lee

IPC: G01L1/04 ,  H02K11/21 ,  H02K7/116 ,  F16H1/28 ,  H02K11/24 ,  F16H57/08 ,  F16H19/04 ,  H02K7/06 ,  F16H55/18

Abstract: Provided is an elastically actuating device including an actuator configured to generate a rotary force, a gear part connected to the actuator and configured to transfer the rotary force from the actuator to an outside, and an elastic member including one end fastened to a ground and the other end connected to the gear part, and an elastic member including one end fastened to a ground and another end connected to the gear part, disposed outside the actuator to cover the actuator from the one end to the other end, and deformed in response to the gear part rotating relative to the actuator.

公开(公告)号：US10336217B2

公开(公告)日：2019-07-02

申请号：US14900781

申请日：2015-03-25

Applicant: DELTA KOGYO CO., LTD.

Inventor： Yuji Ikeda

IPC: F16H55/18 ,  B60N2/16 ,  F16H19/00 ,  F16H57/12

Abstract: A seat lifter includes: a connecting member that connects a base member and a seat frame that form a seat and swings in response to external rotating force to raise or lower the seat frame; a first gear provided in the connecting member; a second gear that is provided such that an axial direction thereof is parallel to an axial direction of the first gear and meshes with the first gear; and an operating lever that applies rotating force to the second gear. The teeth of at least one of the first and second gears have such a shape that a tooth thickness of the teeth gradually decreases from one end toward the other end in the axial direction, and the first and second gears mesh with each other by approaching each other in the axial direction.