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US20040050641A1 - Overrunning clutch - Google Patents

Overrunning clutch Download PDF

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Publication number
US20040050641A1
US20040050641A1 US10/381,352 US38135203A US2004050641A1 US 20040050641 A1 US20040050641 A1 US 20040050641A1 US 38135203 A US38135203 A US 38135203A US 2004050641 A1 US2004050641 A1 US 2004050641A1
Authority
US
United States
Prior art keywords
pawl
ratchet
tail end
clutch
magnet
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Abandoned
Application number
US10/381,352
Other languages
English (en)
Inventor
Feng Jin
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from CN 00254031 external-priority patent/CN2444084Y/zh
Priority claimed from CN01129231.8A external-priority patent/CN1232743C/zh
Application filed by Individual filed Critical Individual
Assigned to PANG, REN, HE, JIAN JUN reassignment PANG, REN ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: JIN, FENG
Publication of US20040050641A1 publication Critical patent/US20040050641A1/en
Priority to US11/557,042 priority Critical patent/US7341135B2/en
Abandoned legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D41/00—Freewheels or freewheel clutches
    • F16D41/12—Freewheels or freewheel clutches with hinged pawl co-operating with teeth, cogs, or the like

Definitions

  • the present invention relates to an overrunning clutch, and more particularly, to a clutch that is in frequently overrunning condition with heavy load.
  • An inertial centrifugal ratchet is disclosed in Chinese Utility Model patent CN91208227.5, wherein a magnetic ring is provided under the ratchet.
  • the pawls stretch radially outwardly in the direction effected by the centrifugal force when gears are turning so as to mesh with the teeth of the ratchet.
  • the ratchet can't operate reliably when the pawls do not rotate flexibly, which is due to the centrifugal force that makes the pawls stretch radially outwardly to mesh with the teeth of the ratchet.
  • a US patent U.S. Pat. No. 5,205,386
  • a magnet is disposed radially outwardly of associated pawl meshing end.
  • the pawls stretch radially outwardly by the centrifugal force when the driving shaft rotates at a speed above a desired value. Once the pawl contacts with associated magnet, it will be held by said magnet.
  • Such clutch still utilizes the spring force to drive pawl to swing and mesh with the teeth of said ratchet. Therefore, the spring will be loaded frequently and repeatedly in case of frequently overrunning condition with heavy load. The spring will be fatigue failure quickly and make the clutch be malfunction.
  • the object of the present invention is to provide an overrunning clutch which doesn't need a spring to drive the pawl.
  • the present invention can achieve said object by providing a type of overrunning clutch comprising a ratchet wheel and a plurality of pawls.
  • Each of the pawls is rotationally supported on a disk member by a shaft.
  • a permanent magnet is fixed on the disk member between the axes of said disk member and said shaft and opposing to the tail end of each pawl.
  • such pawl includes a ratchet end which engages with the ratchet teeth and a tail end away from the ratchet end.
  • a through hole for said shaft is provided between the ratchet end and the tail end. The distance from the tip of the ratchet end to the axis of the through hole is larger than that from the tip of the tail end to the axis of the through hole.
  • the magnet is provided near the tail end of said pawl and between the axes of the disk member and the shaft.
  • the distance from the tip of the ratchet end of the pawl to the axis of the through hole is slightly larger than that from the tip of the tail end to the axis of the through hole.
  • the ratio of the distance from the tip of the tail end to the axis of the through hole to the distance from the tip of the ratchet end to the axis of the through hole is preferred to be 1:1.1.
  • the clutch further includes a mounting sleeve embedded in said disk member.
  • the permanent magnet is provided inside the said mounting sleeve.
  • the mounting sleeve is preferably made of non-magnetic conduct materials, such as stainless steel, copper, aluminum, or the like.
  • the permanent magnet is made of ferrite, preferably the material of Neodymium-Fe-Boron. It is a cylinder, and the diameter of the cylinder is 16 mm and its height is 10 mm.
  • the distance between the tail end of said pawl and the permanent magnet is 1 mm when the ratchet end of said pawl engages with the ratchet teeth, the maximum distance between the tail end of said pawl and the permanent magnet is 5 mm when the pawl disengages with the ratchet teeth.
  • This invention utilizes the magnetic force to make the pawl and the ratchet engage with each other. Since no springs are applied, there are no problems of fatigue failure. This will significantly extend the service life of the clutch according to this invention in the case of frequently heavy load.
  • the magnet will not contact with the tail end of the pawl during operation.
  • Such formation can ensure that the magnet will not be impinged by the tail end of the pawl during operation, which means that there is no force acting on it directly. Therefore, the magnet will not be worn or be damaged by mechanical force and it will not produce the problems of fatigue failure existing in the prior art because there is no mechanical force acting on the magnet directly. So the service life of the clutch according to this invention can be extended.
  • the magnet since the magnet has the nature of shrinking when it is heated and expanding when it is cooled, the clearance between the magnet and the fixed means will be enlarged when the magnet is impinged by the mechanical force and produces heat during operation. In such case the magnet will become loose.
  • there is no direct contact between the magnet and the tail end of the pawl so the magnet will not become loose when being heated.
  • Such formation can ensure the magnet to operate for a long time and can extend the service life of the clutch of this invention.
  • the distance from the tip of the ratchet end of the pawl to the axis of the through hole is larger than that from the tip of the tail end to the axis of the through hole.
  • FIG. 1 is a schematic view of the construction according to this invention.
  • the number 1 indicates a ratchet wheel in FIG. 1, the ratchet teeth 9 are provided on the inner side of the ratchet wheel 1 .
  • the disk member 5 is coaxial with ratchet wheel 1 and can rotate relatively to the ratchet wheel 1 .
  • a number of pawls 2 are shown in FIG. 1, the practical number of the pawls can be determined according to the working condition.
  • Each of the pawls 2 is rotationally supported on the disk member 5 by a shaft 3 .
  • the pawl 2 is a long and thin element made of ferromagnetism material such as steel.
  • the pawl 2 includes a ratchet end 6 which engages with the teeth of said ratchet wheel, and a tail end 7 is opposing to the ratchet end 6 .
  • the distance a from the tip of the ratchet end 6 to the center of the shaft 3 is larger than the distance b from the tip of the tail end 7 to the center of the shaft 3 .
  • a equals to 40 mm
  • b equals to 36 mm.
  • the ratio of a/b can ensure the pawl 2 to engage with ratchet teeth 9 on the ratchet wheel 1 reliably under the action of the magnetic force of the magnet 4 .
  • the magnet 4 is provided between the axes of the disk member 5 and the axes of the shaft 3 . Magnet 4 is near the tail end 7 of pawl 2 .
  • the distance between the tail end 7 of said pawl 2 and the magnet 4 is 1 mm when pawl 2 engages with the ratchet teeth 9
  • the maximum distance between the tail end 7 of said pawl 2 and the magnet 4 is 5 mm when pawl 2 disengages with the ratchet teeth 9 .
  • the shape of magnet 4 is a cylinder and its diameter is 16 mm and its height is 10 mm.
  • Magnet 4 is made of ferrite, preferably Neodymium-Fe-Boron.
  • the pawl 2 is made of ferromagnetism material, such as steel.
  • the shape of the magnet 4 can be other form, such as a rod with a rectangular cross-section and so on.
  • a mounting sleeve 10 is provided between magnet 4 and disk member 5 .
  • the mounting sleeve 10 preferably is made of non-magnetic material, such as stainless steel, copper, aluminum, or the like.
  • the used material can block effectively the path of the magnetic line of force to utilize the magnetic force of magnet 4 to the full extent and to drive the pawl 2 .
  • mounting sleeve 10 is just like a cup.
  • the magnet 4 is placed into the mounting sleeve 10 from the upper open end thereof, then the mounting sleeve 10 and the magnet 4 are together brought into a respective hole in the disk member 5 .
  • the mounting sleeve 10 and the magnet 4 can be fixed in the disk member 5 through the method of press-fit.
  • Other ways can be utilized for said connection, for example, the mounting sleeve 10 and the disk member 5 can be connected together by threading or welding or the like.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • One-Way And Automatic Clutches, And Combinations Of Different Clutches (AREA)
  • Mechanical Operated Clutches (AREA)
US10/381,352 2000-09-29 2001-06-25 Overrunning clutch Abandoned US20040050641A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US11/557,042 US7341135B2 (en) 2000-09-29 2006-11-06 Overrunning clutch

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
CN 00254031 CN2444084Y (zh) 2000-09-29 2000-09-29 一种磁力复位棘爪的棘轮式超越离合器
CN01129231.8A CN1232743C (zh) 2001-06-18 2001-06-18 一种超越离合器
CN01129231.8 2001-06-18
PCT/CN2001/001038 WO2002027206A1 (fr) 2000-09-29 2001-06-25 Roue libre
CN00254031.2 2001-09-29

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US11/557,042 Continuation US7341135B2 (en) 2000-09-29 2006-11-06 Overrunning clutch

Publications (1)

Publication Number Publication Date
US20040050641A1 true US20040050641A1 (en) 2004-03-18

Family

ID=25740107

Family Applications (2)

Application Number Title Priority Date Filing Date
US10/381,352 Abandoned US20040050641A1 (en) 2000-09-29 2001-06-25 Overrunning clutch
US11/557,042 Expired - Fee Related US7341135B2 (en) 2000-09-29 2006-11-06 Overrunning clutch

Family Applications After (1)

Application Number Title Priority Date Filing Date
US11/557,042 Expired - Fee Related US7341135B2 (en) 2000-09-29 2006-11-06 Overrunning clutch

Country Status (5)

Country Link
US (2) US20040050641A1 (de)
AU (1) AU2001285671A1 (de)
CA (1) CA2423907A1 (de)
DE (1) DE10196701T1 (de)
WO (1) WO2002027206A1 (de)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20110290608A1 (en) * 2010-05-25 2011-12-01 Bird Norman J Magnetically Actuated One-Way Clutch
EP2560496B1 (de) 2010-04-19 2015-04-01 Foodmate B.V. Drehbarer warenträger für eine fördereinrichtung
US20150292575A1 (en) * 2014-04-10 2015-10-15 United Technologies Corporation Anti-rotational systems and methods
CN107654529A (zh) * 2016-07-25 2018-02-02 麦格纳动力系有限公司 具有热隔离的螺线管和电路的线圈模块组件
US10463052B2 (en) 2011-01-26 2019-11-05 Foodmate B.V. Meat processing equipment having improved yieldable arresting means
KR20200073636A (ko) * 2018-12-14 2020-06-24 현대 파워텍 주식회사 자기력을 이용한 드래그 저감형 원웨이 클러치
US10724582B2 (en) * 2018-05-14 2020-07-28 Ford Global Technologies, Llc Hybrid transmission having electro-magnetically actuated pawl clutch

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US7735581B2 (en) * 2007-04-30 2010-06-15 Smith International, Inc. Locking clutch for downhole motor
US20090255774A1 (en) * 2008-04-15 2009-10-15 Chia-Wei Hsu Ratchet gear device for a bicycle rear wheel
NZ575464A (en) 2009-03-10 2010-07-30 Holmes Solutions Ltd Improvements in and relating to braking mechanisms
US8839927B2 (en) 2010-11-05 2014-09-23 Hamilton Sundstrand Corporation Pawl stop for use in ratchet and pawl style clutch
CN102011678B (zh) * 2010-11-26 2012-04-18 北京海鼎瑞通机电技术有限公司 一种波浪发电方法以及实施此方法的系统
NZ619034A (en) 2013-12-16 2015-03-27 Eddy Current Ltd Partnership An assembly to control relative speed of movement between parts
US9689444B2 (en) * 2014-04-10 2017-06-27 United Technologies Corporation Damped anti-rotational systems
BR112017003207B1 (pt) 2014-08-18 2023-01-24 Eddy Current Limited Partnership Dispositivo, freio, dispositivo de dispensa de linha, contenção de assento de passageiro, acionamento de transmissão, e corda de segurança guiada linear
WO2016028170A1 (en) 2014-08-18 2016-02-25 Eddy Current Limited Partnership Latching devices
KR102284956B1 (ko) 2014-08-18 2021-08-03 에디 커런트 리미티드 파트너쉽 부재들 사이의 운동학적 관계의 조정
EP3183802B1 (de) 2014-08-20 2019-12-04 Hi Tech LLC Wirbelstrombremsvorrichtung für lineare systeme
WO2016057640A2 (en) 2014-10-07 2016-04-14 Magna Powertrain Of America, Inc. An electro-mechanical clutch apparatus
BR112017010643B1 (pt) 2014-12-04 2022-03-03 Eddy Current Limited Partnership Aparelho de absorção de energia
JP7081065B2 (ja) 2014-12-04 2022-06-07 エディ・カーレント・リミテッド・パートナーシップ 渦電流ブレーキ装置、方法、オートビレイ装置およびセルフリトラクティングライフライン装置
US10774887B2 (en) * 2014-12-04 2020-09-15 Eddy Current Limited Partnership Latch activation between members
JP6699906B2 (ja) 2014-12-04 2020-05-27 エディ・カーレント・リミテッド・パートナーシップ 渦電流制動を組み込んだ伝達機構及び渦電流抗力を伝達する方法
US11050336B2 (en) 2014-12-04 2021-06-29 Eddy Current Limited Partnership Methods of altering eddy current interactions
CN108885225B (zh) 2015-12-18 2021-09-17 涡流有限合伙公司 一种用于动力系统的可变行为控制机构
CN114761089B (zh) 2019-09-20 2024-03-15 特鲁布鲁有限公司 锁止下降控制系统和装置
US12521578B2 (en) 2020-03-18 2026-01-13 TruBlue LLC Line dispensing devices
TWI722892B (zh) * 2020-05-07 2021-03-21 優鋼機械股份有限公司 磁性換向之滾子扳手

Citations (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US119231A (en) * 1871-09-26 Improvement in bolt-cutters
US908128A (en) * 1908-07-18 1908-12-29 Charles N Petesch Horse-power recorder.
US1412336A (en) * 1921-05-31 1922-04-11 Carter Arthur Free wheel
US1543146A (en) * 1925-02-09 1925-06-23 Ferdinand H Zimmerer Truck for supporting form rollers on printing presses
US2092628A (en) * 1932-12-01 1937-09-07 Carlton H Allen Hydrator
US2340368A (en) * 1940-03-30 1944-02-01 Adiel Y Dodge Automatic clutch
US2409009A (en) * 1945-07-24 1946-10-08 Gen Electric One-way drive with magnetic lock
US2583843A (en) * 1949-02-07 1952-01-29 Homer K Herrick Magnetic type one-way clutch
US2971621A (en) * 1956-11-07 1961-02-14 Sss Gears Ltd Synchronous self-shifting clutches
US3008560A (en) * 1958-04-02 1961-11-14 Sss Gears Ltd Self-shifting synchronizing clutches
US3093226A (en) * 1959-11-07 1963-06-11 Sss Gears Ltd Rotary synchronous clutches
US3197001A (en) * 1962-03-26 1965-07-27 Sss Patents Ltd Rotary synchronous clutches
US5197258A (en) * 1991-10-24 1993-03-30 Federal Manufacturing Co. Screwcapping device with torque limiting magnetic clutch
US5205386A (en) * 1992-03-05 1993-04-27 United Technologies Corporation Pawl and ratchet clutch with pawl holdback
US5361182A (en) * 1992-11-12 1994-11-01 Seagate Technology, Inc. Magnetic carriage latch for a disc drive
US5970825A (en) * 1996-04-15 1999-10-26 Barnett; Franklin E. Magnetic ratchet/clutch type apparatus
US6680553B1 (en) * 1998-11-19 2004-01-20 Kabushiki Kaisha Moric Rotating electrical apparatus

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB908128A (en) * 1958-06-10 1962-10-17 Andre Duban Improvements in or relating to ratchet-and-pawl devices
JPS55119231A (en) * 1979-03-09 1980-09-12 Mitsutomi Inoue Ratchet mechanism for bicycle
SU1543146A1 (ru) * 1987-11-27 1990-02-15 Rudakov Gennadij Храповая обгонная муфта
CN2092628U (zh) * 1991-05-23 1992-01-08 曹一凡 惯性离心式棘轮
CN1232743C (zh) * 2001-06-18 2005-12-21 金锋 一种超越离合器
CN2444084Y (zh) 2000-09-29 2001-08-22 金锋 一种磁力复位棘爪的棘轮式超越离合器

Patent Citations (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US119231A (en) * 1871-09-26 Improvement in bolt-cutters
US908128A (en) * 1908-07-18 1908-12-29 Charles N Petesch Horse-power recorder.
US1412336A (en) * 1921-05-31 1922-04-11 Carter Arthur Free wheel
US1543146A (en) * 1925-02-09 1925-06-23 Ferdinand H Zimmerer Truck for supporting form rollers on printing presses
US2092628A (en) * 1932-12-01 1937-09-07 Carlton H Allen Hydrator
US2340368A (en) * 1940-03-30 1944-02-01 Adiel Y Dodge Automatic clutch
US2409009A (en) * 1945-07-24 1946-10-08 Gen Electric One-way drive with magnetic lock
US2583843A (en) * 1949-02-07 1952-01-29 Homer K Herrick Magnetic type one-way clutch
US2971621A (en) * 1956-11-07 1961-02-14 Sss Gears Ltd Synchronous self-shifting clutches
US3008560A (en) * 1958-04-02 1961-11-14 Sss Gears Ltd Self-shifting synchronizing clutches
US3093226A (en) * 1959-11-07 1963-06-11 Sss Gears Ltd Rotary synchronous clutches
US3197001A (en) * 1962-03-26 1965-07-27 Sss Patents Ltd Rotary synchronous clutches
US5197258A (en) * 1991-10-24 1993-03-30 Federal Manufacturing Co. Screwcapping device with torque limiting magnetic clutch
US5205386A (en) * 1992-03-05 1993-04-27 United Technologies Corporation Pawl and ratchet clutch with pawl holdback
US5361182A (en) * 1992-11-12 1994-11-01 Seagate Technology, Inc. Magnetic carriage latch for a disc drive
US5970825A (en) * 1996-04-15 1999-10-26 Barnett; Franklin E. Magnetic ratchet/clutch type apparatus
US6680553B1 (en) * 1998-11-19 2004-01-20 Kabushiki Kaisha Moric Rotating electrical apparatus

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2560496B1 (de) 2010-04-19 2015-04-01 Foodmate B.V. Drehbarer warenträger für eine fördereinrichtung
US20110290608A1 (en) * 2010-05-25 2011-12-01 Bird Norman J Magnetically Actuated One-Way Clutch
US8403123B2 (en) * 2010-05-25 2013-03-26 Ford Global Technologies, Llc Magnetically actuated one-way clutch
US10463052B2 (en) 2011-01-26 2019-11-05 Foodmate B.V. Meat processing equipment having improved yieldable arresting means
US20150292575A1 (en) * 2014-04-10 2015-10-15 United Technologies Corporation Anti-rotational systems and methods
US10006506B2 (en) * 2014-04-10 2018-06-26 United Technologies Corporation Anti-rotational systems and methods
CN107654529A (zh) * 2016-07-25 2018-02-02 麦格纳动力系有限公司 具有热隔离的螺线管和电路的线圈模块组件
US10724582B2 (en) * 2018-05-14 2020-07-28 Ford Global Technologies, Llc Hybrid transmission having electro-magnetically actuated pawl clutch
KR20200073636A (ko) * 2018-12-14 2020-06-24 현대 파워텍 주식회사 자기력을 이용한 드래그 저감형 원웨이 클러치
KR102173761B1 (ko) 2018-12-14 2020-11-04 현대트랜시스 주식회사 자기력을 이용한 드래그 저감형 원웨이 클러치

Also Published As

Publication number Publication date
WO2002027206A1 (fr) 2002-04-04
DE10196701T1 (de) 2003-09-04
US7341135B2 (en) 2008-03-11
CA2423907A1 (en) 2003-03-28
US20070256906A1 (en) 2007-11-08
AU2001285671A1 (en) 2002-04-08

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Legal Events

Date Code Title Description
AS Assignment

Owner name: HE, JIAN JUN, CHINA

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:JIN, FENG;REEL/FRAME:014461/0949

Effective date: 20030417

Owner name: PANG, REN, CHINA

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:JIN, FENG;REEL/FRAME:014461/0949

Effective date: 20030417

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO PAY ISSUE FEE