GB1561698A - Crank assembly for a bicycle - Google Patents

Crank assembly for a bicycle Download PDF

Info

Publication number
GB1561698A
GB1561698A GB31014/76A GB3101476A GB1561698A GB 1561698 A GB1561698 A GB 1561698A GB 31014/76 A GB31014/76 A GB 31014/76A GB 3101476 A GB3101476 A GB 3101476A GB 1561698 A GB1561698 A GB 1561698A
Authority
GB
United Kingdom
Prior art keywords
driving member
crank
crankshaft
bearing
crank assembly
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
GB31014/76A
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
Priority claimed from JP10778275U external-priority patent/JPS5341250Y2/ja
Priority claimed from JP15920575U external-priority patent/JPS5352220Y2/ja
Priority claimed from JP15920475U external-priority patent/JPS5352219Y2/ja
Application filed by Shimano Industrial Co Ltd filed Critical Shimano Industrial Co Ltd
Publication of GB1561698A publication Critical patent/GB1561698A/en
Expired legal-status Critical Current

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
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D41/00—Freewheels or freewheel clutches
    • F16D41/24—Freewheels or freewheel clutches specially adapted for cycles
    • F16D41/30—Freewheels or freewheel clutches specially adapted for cycles with hinged pawl co-operating with teeth, cogs, or the like
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62K—CYCLES; CYCLE FRAMES; CYCLE STEERING DEVICES; RIDER-OPERATED TERMINAL CONTROLS SPECIALLY ADAPTED FOR CYCLES; CYCLE AXLE SUSPENSIONS; CYCLE SIDE-CARS, FORECARS, OR THE LIKE
    • B62K19/00—Cycle frames
    • B62K19/30—Frame parts shaped to receive other cycle parts or accessories
    • B62K19/34—Bottom brackets
    • 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
    • B62M3/003—Combination of crank axles and bearings housed in the bottom bracket
    • 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
    • Y10T74/00—Machine element or mechanism
    • Y10T74/21—Elements
    • Y10T74/2164—Cranks and pedals
    • Y10T74/2165—Cranks and pedals with attached gear

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Transmission Devices (AREA)
  • Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
  • Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)
GB31014/76A 1975-08-01 1976-07-26 Crank assembly for a bicycle Expired GB1561698A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP10778275U JPS5341250Y2 (enExample) 1975-08-01 1975-08-01
JP15920575U JPS5352220Y2 (enExample) 1975-11-21 1975-11-21
JP15920475U JPS5352219Y2 (enExample) 1975-11-21 1975-11-21

Publications (1)

Publication Number Publication Date
GB1561698A true GB1561698A (en) 1980-02-27

Family

ID=27311071

Family Applications (1)

Application Number Title Priority Date Filing Date
GB31014/76A Expired GB1561698A (en) 1975-08-01 1976-07-26 Crank assembly for a bicycle

Country Status (5)

Country Link
US (1) US4183262A (enExample)
DE (1) DE2633939C2 (enExample)
FR (1) FR2319820A1 (enExample)
GB (1) GB1561698A (enExample)
IT (1) IT1074256B (enExample)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2213439A (en) * 1988-01-08 1989-08-16 Lew Ways Ltd Pedal drive crank assembly

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE419960B (sv) * 1979-12-27 1981-09-07 Dieter Herbert Anordning for att variera pedalvevslengden hos en cykel
US4571219A (en) * 1980-09-15 1986-02-18 Daniel Corporation Bicycle transmission
WO1982000984A1 (en) * 1980-09-15 1982-04-01 Corp Daniel Bicycle transmission
US4602524A (en) * 1984-11-19 1986-07-29 General Signal Corporation Method of manufacturing bicycle chain drives
US4840084A (en) * 1987-12-17 1989-06-20 Durham Roger O Freewheel mechanism for bicycles
DE4025708A1 (de) * 1990-08-14 1992-02-20 Fichtel & Sachs Ag Anordnung von gesperreklinken in fahrradnaben
US5426997A (en) * 1993-06-28 1995-06-27 Brion; Donald G. Bicycle chain drive assembly
US5553510A (en) * 1995-02-27 1996-09-10 Balhorn; Alan C. Multi-speed transmission
US5975266A (en) * 1996-02-21 1999-11-02 Balhorn; Alan C. Multi-speed transmission
US6821236B2 (en) * 2002-02-01 2004-11-23 Shih Chuan Liang Exerciser having a solid driving structure
US20040173049A1 (en) * 2003-03-04 2004-09-09 Jun-Cheng Chen Transmission mechanism of child bicycle
FR2885112B1 (fr) * 2005-04-27 2009-01-30 Claude Gregoire Dispositif de transmission de mouvement de pedalage sur des cycles pour deplacement ou entrainement
US10093389B2 (en) * 2016-11-16 2018-10-09 Shimano Inc. Bicycle front sprocket, bicycle crank assembly, and bicycle drive train
US12296910B2 (en) * 2022-09-28 2025-05-13 Sram, Llc Front chainring assembly

Family Cites Families (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE423497A (enExample) *
US624635A (en) * 1899-05-09 Velocipede
US506105A (en) * 1893-10-03 Bicycle
BE430027A (enExample) *
DE266637C (enExample) *
BE413094A (enExample) *
US643349A (en) * 1895-11-18 1900-02-13 William H Fauber Bicycle crank-shaft.
CH17923A (fr) * 1898-09-30 1899-09-30 Louis Lefebvre Pédalier pour vélocipèdes
GB189904599A (en) * 1899-03-02 1899-04-08 Gomer Phillip Jones Improvements in and relating to Divided Crank-axles.
GB173085A (en) * 1920-10-01 1921-12-29 Alfred Charles Blackmore Improvements in or connected with motor attachments for velocipedes, cycles and like vehicles
FR810283A (fr) * 1935-12-06 1937-03-18 Dispositif de roue libre double pour tandems
US2211548A (en) * 1938-09-21 1940-08-13 Frank W Schwinn Freewheeling hub
US2257401A (en) * 1939-08-02 1941-09-30 Frank W Schwinn Crank bearing for bicycles
FR977791A (fr) * 1942-11-13 1951-04-05 Cycle à moteur auxiliaire
GB681509A (en) * 1950-10-25 1952-10-22 William Robson Improvements relating to free-wheel mechanism for bicycles and the like
GB1090410A (en) * 1965-05-29 1967-11-08 Raleigh Industries Ltd Epicyclic change speed gear hubs
US3377883A (en) * 1965-07-16 1968-04-16 Thun Alfred Pedal
US3492883A (en) * 1967-12-14 1970-02-03 Tetsuo Maeda Driving chain gear of a bicycle
DE1752015B2 (de) * 1968-03-21 1973-10-31 Alfred Thun & Co. Gmbh, 5828 Ennepetal Verfahren zur Herstellung einer Tretkurbel für Fahrrader
US3835729A (en) * 1971-11-27 1974-09-17 Shimano Industrial Co Means for preventing driving chain from coming off multi-speed transmission front gear for bicycle

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2213439A (en) * 1988-01-08 1989-08-16 Lew Ways Ltd Pedal drive crank assembly
GB2213439B (en) * 1988-01-08 1992-06-03 Lew Ways Ltd Pedal drive systems

Also Published As

Publication number Publication date
IT1074256B (it) 1985-04-20
US4183262A (en) 1980-01-15
FR2319820B1 (enExample) 1979-08-10
DE2633939A1 (de) 1977-02-17
DE2633939C2 (de) 1985-11-14
FR2319820A1 (fr) 1977-02-25

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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