GB1569178A - Front sprocket assembly for a bicycle - Google Patents

Front sprocket assembly for a bicycle Download PDF

Info

Publication number
GB1569178A
GB1569178A GB53421/76A GB5342176A GB1569178A GB 1569178 A GB1569178 A GB 1569178A GB 53421/76 A GB53421/76 A GB 53421/76A GB 5342176 A GB5342176 A GB 5342176A GB 1569178 A GB1569178 A GB 1569178A
Authority
GB
United Kingdom
Prior art keywords
sprocket
mounting member
larger
bore
smaller
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.)
Expired
Application number
GB53421/76A
Other languages
English (en)
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.)
Shimano Inc
Original Assignee
Shimano Industrial Co Ltd
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 Shimano Industrial Co Ltd filed Critical Shimano Industrial Co Ltd
Publication of GB1569178A publication Critical patent/GB1569178A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • B62M9/10—Transmissions characterised by use of an endless chain, belt, or the like of changeable ratio using a single chain, belt, or the like involving different-sized wheels, e.g. rear sprocket chain wheels selectively engaged by the chain, belt, or the like
    • B62M9/105—Transmissions characterised by use of an endless chain, belt, or the like of changeable ratio using a single chain, belt, or the like involving different-sized wheels, e.g. rear sprocket chain wheels selectively engaged by the chain, belt, or the like involving front sprocket chain-wheels engaged by the chain, belt or the like
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49462—Gear making
    • Y10T29/49467—Gear shaping
    • Y10T29/49472—Punching or stamping

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Gears, Cams (AREA)
GB53421/76A 1975-12-29 1976-12-21 Front sprocket assembly for a bicycle Expired GB1569178A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1975180305U JPS5291949U (US06811534-20041102-M00003.png) 1975-12-29 1975-12-29

Publications (1)

Publication Number Publication Date
GB1569178A true GB1569178A (en) 1980-06-11

Family

ID=16080878

Family Applications (1)

Application Number Title Priority Date Filing Date
GB53421/76A Expired GB1569178A (en) 1975-12-29 1976-12-21 Front sprocket assembly for a bicycle

Country Status (4)

Country Link
US (1) US4106357A (US06811534-20041102-M00003.png)
JP (1) JPS5291949U (US06811534-20041102-M00003.png)
FR (1) FR2337074A1 (US06811534-20041102-M00003.png)
GB (1) GB1569178A (US06811534-20041102-M00003.png)

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4380445A (en) * 1974-08-16 1983-04-19 Shimano Industrial Company Limited Transmission for a bicycle
US4144773A (en) * 1976-07-12 1979-03-20 Addicks Lyle F Bicycle sprocket wheel
JPS54183860U (US06811534-20041102-M00003.png) * 1978-06-16 1979-12-26
EP0047092B1 (en) * 1980-08-18 1985-12-04 Shimano Industrial Company Limited Gear crank for pedal vehicle
JPS6027116Y2 (ja) * 1981-03-30 1985-08-15 株式会社杉野鉄工所 自転車用プラスチツクギヤ
JPS57188592U (US06811534-20041102-M00003.png) * 1981-05-27 1982-11-30
JPS6015074U (ja) * 1983-07-11 1985-02-01 株式会社シマノ 自転車用ギヤクランク
JPH04119795U (ja) * 1991-04-11 1992-10-27 株式会社シマノ 自転車用ギアクランク装置
JP3578541B2 (ja) * 1996-02-20 2004-10-20 株式会社エクセディ 粘性ダンパー機構
IT1289715B1 (it) * 1996-12-05 1998-10-16 Campagnolo Srl Gruppo sopporto pignoni per una bicicletta
US5947852A (en) * 1998-05-18 1999-09-07 Tmj Properties, L.L.C. Sprocket or gear with metal hub
US6475110B1 (en) * 2000-03-17 2002-11-05 Shimano Inc. Bicycle front chainwheel assembly
US7066856B1 (en) 2002-09-06 2006-06-27 Rogers James K Chain ring protector
US8979685B2 (en) * 2006-04-07 2015-03-17 The Hive Global, Inc. Impact protector mounting
ITMI20061549A1 (it) * 2006-08-03 2008-02-04 Campagnolo Srl Assieme di pedivella destro per bicicletta e relative pedivella e corona
US8235849B2 (en) 2007-08-29 2012-08-07 Eko Sport, Inc. Combined chain ring protector and chain guide
US20090220319A1 (en) * 2008-02-28 2009-09-03 David Weagle Captive fasteners for bicycle chainguides
US20100009794A1 (en) * 2008-07-10 2010-01-14 Douglas Chiang Sprocket assembly
US9327786B2 (en) 2012-08-17 2016-05-03 Eko Sport, Inc. Chain guard with unitary bracket extension
US10618588B2 (en) * 2017-12-13 2020-04-14 Gates Corporation Sprocket guard
US11292555B2 (en) * 2018-08-01 2022-04-05 Shimano Inc. Bicycle sprocket

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2153647A5 (US06811534-20041102-M00003.png) * 1971-09-17 1973-05-04 Huret Jacques
US3785219A (en) * 1972-06-05 1974-01-15 J Anthamatten Coaster brake system for a multi-speed bicycle
JPS5211742B2 (US06811534-20041102-M00003.png) * 1972-07-05 1977-04-01
US3901095A (en) * 1974-06-17 1975-08-26 Joseph W Wechsler Bicycle gear shift

Also Published As

Publication number Publication date
US4106357A (en) 1978-08-15
JPS5291949U (US06811534-20041102-M00003.png) 1977-07-09
FR2337074A1 (fr) 1977-07-29
FR2337074B1 (US06811534-20041102-M00003.png) 1980-07-18

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee