WO2013027996A3 - 자전거의 비대칭 타원형상 체인기어 - Google Patents

자전거의 비대칭 타원형상 체인기어 Download PDF

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Publication number
WO2013027996A3
WO2013027996A3 PCT/KR2012/006634 KR2012006634W WO2013027996A3 WO 2013027996 A3 WO2013027996 A3 WO 2013027996A3 KR 2012006634 W KR2012006634 W KR 2012006634W WO 2013027996 A3 WO2013027996 A3 WO 2013027996A3
Authority
WO
WIPO (PCT)
Prior art keywords
ellipse
point
straight line
chain gear
axis
Prior art date
Application number
PCT/KR2012/006634
Other languages
English (en)
French (fr)
Other versions
WO2013027996A2 (ko
Inventor
최윤석
Original Assignee
Choi Yun Seok
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
Application filed by Choi Yun Seok filed Critical Choi Yun Seok
Priority to US14/240,414 priority Critical patent/US9074682B2/en
Priority to CN201280041248.1A priority patent/CN103748003B/zh
Publication of WO2013027996A2 publication Critical patent/WO2013027996A2/ko
Publication of WO2013027996A3 publication Critical patent/WO2013027996A3/ko

Links

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
    • F16H—GEARING
    • F16H55/00—Elements with teeth or friction surfaces for conveying motion; Worms, pulleys or sheaves for gearing mechanisms
    • F16H55/02—Toothed members; Worms
    • F16H55/30—Chain-wheels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62M—RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES; POWERED PROPULSION OF SLEDGES OR SINGLE-TRACK CYCLES; TRANSMISSIONS SPECIALLY ADAPTED FOR SUCH VEHICLES
    • B62M9/00—Transmissions characterised by use of an endless chain, belt, or the like
    • B62M9/04—Transmissions characterised by use of an endless chain, belt, or the like of changeable ratio
    • B62M9/06—Transmissions characterised by use of an endless chain, belt, or the like of changeable ratio using a single chain, belt, or the like
    • B62M9/08—Transmissions characterised by use of an endless chain, belt, or the like of changeable ratio using a single chain, belt, or the like involving eccentrically- mounted or elliptically-shaped driving or driven wheel; with expansible driving or driven wheel
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62M—RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES; POWERED PROPULSION OF SLEDGES OR SINGLE-TRACK CYCLES; TRANSMISSIONS SPECIALLY ADAPTED FOR SUCH VEHICLES
    • B62M3/00—Construction of cranks operated by hand or foot
    • B62M3/06—Construction of cranks operated by hand or foot with elliptical or other non-circular rotary movement
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62M—RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES; POWERED PROPULSION OF SLEDGES OR SINGLE-TRACK CYCLES; TRANSMISSIONS SPECIALLY ADAPTED FOR SUCH VEHICLES
    • B62M9/00—Transmissions characterised by use of an endless chain, belt, or the like
    • B62M2009/002—Non-circular chain rings or sprockets

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • General Engineering & Computer Science (AREA)
  • Gears, Cams (AREA)

Abstract

본 발명에 따른 비대칭 타원형상 체인기어(10)는, 수직좌표계의 X축 상에 장축이 위치하고 Y축 상에 단축이 위치하는 제1타원(1)과, 상기 단축에 수직하고 상기 제1타원(1)과 교차하는 제1직선(3)과, 상기 제1직선(1) 상에 존재하고 상기 단축에 대해 시계방향으로 일정한 각(a)을 이루는 지점에 위치하는 제1변곡점(A, A')을 지나고 상기 장축에서 시계방향으로 일정한 각(b)을 이루는 지점에 위치하는 제1타원(1) 상의 타원접점(B, B')에 접하는 제2타원(2)의 조합으로 형상이 이루어지되, 상기 제1직선(3)과 제1타원(1)의 교차점인 제2변곡점(C)에서 상기 제1변곡점(A)에 이르는 직선구간과, 상기 제1변곡점(C)에서 상기 타원접점(B)에 이르는 제2타원구간 및 상기 타원접점(B)에서 상기 제2변곡점(C')에 이르는 제1타원구간의 조합으로 형상이 이루어지는 것을 특징으로 한다.
PCT/KR2012/006634 2011-08-23 2012-08-21 자전거의 비대칭 타원형상 체인기어 WO2013027996A2 (ko)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US14/240,414 US9074682B2 (en) 2011-08-23 2012-08-21 Asymmetric elliptical chain gear for a bicycle
CN201280041248.1A CN103748003B (zh) 2011-08-23 2012-08-21 自行车的非对称椭圆形链轮

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR10-2011-0083899 2011-08-23
KR20110083899 2011-08-23

Publications (2)

Publication Number Publication Date
WO2013027996A2 WO2013027996A2 (ko) 2013-02-28
WO2013027996A3 true WO2013027996A3 (ko) 2013-05-10

Family

ID=47746992

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/KR2012/006634 WO2013027996A2 (ko) 2011-08-23 2012-08-21 자전거의 비대칭 타원형상 체인기어

Country Status (3)

Country Link
US (1) US9074682B2 (ko)
CN (1) CN103748003B (ko)
WO (1) WO2013027996A2 (ko)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9074682B2 (en) 2011-08-23 2015-07-07 Yun Seok Choi Asymmetric elliptical chain gear for a bicycle
US9182027B2 (en) * 2011-12-06 2015-11-10 Sram, Llc Chainring
DE102013009492B4 (de) 2013-06-05 2023-10-19 Sram Deutschland Gmbh Kettenring
DE102015219522A1 (de) * 2014-10-14 2016-04-14 Sram Deutschland Gmbh Mehrfach-Kettenradanordnung für eine Hinterradnabe
WO2016203433A1 (en) * 2015-06-18 2016-12-22 Antonello Briosi Gearwheel for motion transmission systems onto cycles
US10703441B2 (en) 2015-07-03 2020-07-07 Sram Deutschland Gmbh Drive arrangement for a bicycle
DE102015008662A1 (de) * 2015-07-03 2017-01-05 Sram Deutschland Gmbh Einzelkettenrad für eine Fahrradvorderkurbelanordnung
JP6757903B2 (ja) * 2015-09-03 2020-09-23 株式会社スミス 左右脚別にギヤ倍数を設けた非円形形状の自転車ギヤ
AU2017291265A1 (en) * 2016-07-01 2019-02-21 Möve Bikes Gmbh Gear for a bicycle transmission
KR102041551B1 (ko) * 2016-10-06 2019-11-27 최윤석 클립리스 페달을 위한 비대칭 타원체인링
TWI593598B (zh) * 2017-04-11 2017-08-01 傳誠技研有限公司 自行車偏心齒盤與曲柄的組合
CN106864657B (zh) 2017-04-13 2020-05-12 温州立意机电科技有限公司 万向节转向钛合手脚合力可单腿骑行自行车
WO2019027875A1 (en) * 2017-07-31 2019-02-07 Brown Jr Douglas Gilman PEDAL TRAY
TWI722688B (zh) * 2019-11-28 2021-03-21 國立虎尾科技大學 具有由四段橢圓弧線組成之複合式鏈輪之自行車
CN114212175A (zh) * 2021-12-27 2022-03-22 彭连林 一种克服自行车发力死点的方法

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05213260A (ja) * 1991-11-22 1993-08-24 David J Runnels 自転車
US5549314A (en) * 1991-10-11 1996-08-27 Sassi; Michel Non-circular front chain wheel for crank gear
JP2003306189A (ja) * 2002-04-15 2003-10-28 Hitoshi Matsumoto 自転車のペダリングの矯正装置
KR20110039195A (ko) * 2009-10-09 2011-04-15 최윤석 고속 저상 소형 자전거

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US515449A (en) * 1894-02-27 Bicycle
US3583250A (en) * 1969-04-01 1971-06-08 Rca Corp Transmission including toothed belt and partially toothed pulley
US3752035A (en) * 1971-04-05 1973-08-14 Gen Electric Auto-synchronizing gear system
US3899932A (en) * 1973-12-19 1975-08-19 Roger Owen Durham Chain retention device for elliptical sprockets
US4865577A (en) * 1988-09-08 1989-09-12 Trustees Of Columbia University In The City Of New York Noncircular drive
US5772546A (en) * 1993-06-29 1998-06-30 Warszewski; Jaroslaw Piotr Continuously variable automatic drive
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US5492390A (en) * 1994-04-20 1996-02-20 Nudvuck Enterprises Variable shaped wheel
DE10009808A1 (de) * 2000-03-01 2001-09-06 Schumag Ag Antrieb für eine Ziehmaschine
IT1319421B1 (it) * 2000-06-01 2003-10-10 Sasti S R L Gruppo d'azionamento a pedale per biciclette o simili
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JP4584582B2 (ja) * 2001-11-27 2010-11-24 リテンス オートモーティヴ 非真円駆動要素を有する同期駆動装置
US8342993B2 (en) * 2001-11-27 2013-01-01 Litens Automotive Partnership Synchronous drive apparatus
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US20060035738A1 (en) * 2004-08-12 2006-02-16 Ina-Schaeffler Kg Belt drive
CN101616837B (zh) * 2005-03-15 2012-11-28 罗特尔部件技术公司 使踩踏脚踏板最优化的椭圆形链环
US20070010362A1 (en) * 2005-07-08 2007-01-11 Schaeffler Kg Wraparound drive
JP5205387B2 (ja) * 2006-10-09 2013-06-05 ザ ゲイツ コーポレイション 同期ベルト駆動システム
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US9074682B2 (en) 2011-08-23 2015-07-07 Yun Seok Choi Asymmetric elliptical chain gear for a bicycle

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5549314A (en) * 1991-10-11 1996-08-27 Sassi; Michel Non-circular front chain wheel for crank gear
JPH05213260A (ja) * 1991-11-22 1993-08-24 David J Runnels 自転車
JP2003306189A (ja) * 2002-04-15 2003-10-28 Hitoshi Matsumoto 自転車のペダリングの矯正装置
KR20110039195A (ko) * 2009-10-09 2011-04-15 최윤석 고속 저상 소형 자전거

Also Published As

Publication number Publication date
US20140221139A1 (en) 2014-08-07
WO2013027996A2 (ko) 2013-02-28
US9074682B2 (en) 2015-07-07
CN103748003A (zh) 2014-04-23
CN103748003B (zh) 2017-02-15

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