GB1504121A - Manually or pedally propelled vehicles such as bicycles - Google Patents

Manually or pedally propelled vehicles such as bicycles

Info

Publication number
GB1504121A
GB1504121A GB451074A GB451074A GB1504121A GB 1504121 A GB1504121 A GB 1504121A GB 451074 A GB451074 A GB 451074A GB 451074 A GB451074 A GB 451074A GB 1504121 A GB1504121 A GB 1504121A
Authority
GB
United Kingdom
Prior art keywords
sprocket
motor
sensor
effort
switch
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
GB451074A
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.)
Raleigh Industries Ltd
Original Assignee
Raleigh Industries 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 Raleigh Industries Ltd filed Critical Raleigh Industries Ltd
Priority to GB451074A priority Critical patent/GB1504121A/en
Priority to NL7500999A priority patent/NL7500999A/en
Priority to DE19752503720 priority patent/DE2503720A1/en
Priority to FR7503096A priority patent/FR2259741B3/fr
Publication of GB1504121A publication Critical patent/GB1504121A/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
    • B62M6/00—Rider propulsion of wheeled vehicles with additional source of power, e.g. combustion engine or electric motor
    • B62M6/40—Rider propelled cycles with auxiliary electric motor
    • B62M6/45—Control or actuating devices therefor
    • 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
    • B62M6/00—Rider propulsion of wheeled vehicles with additional source of power, e.g. combustion engine or electric motor
    • B62M6/40—Rider propelled cycles with auxiliary electric motor
    • B62M6/70—Rider propelled cycles with auxiliary electric motor power-driven at single endless flexible member, e.g. chain, between cycle crankshaft and wheel axle, the motor engaging the endless flexible member

Abstract

1504121 Power assisted vehicles RALEIGH INDUSTRIES Ltd 23 Jan 1975 [31 Jan 1974] 04510/74 Heading B7H [Also in Division H2] A vehicle for conveying a rider, particularly a cycle, manually propelled by pedal or manual effort is provided with auxiliary power means which is insufficient to propel the cycle by itself but which is actuated to assist propulsion by control means sensitive to the riders effort, the auxiliary power being switched on when the effort reaches a predetermined value. In one embodiment, Fig. 1, the cycle chain is trained about a spring biased sensor sprocket 6 and a motor drive sprocket 5. On pedalling the chain tension increases and at a predetermined value moves the sensor sprocket down against spring 7 to close switch 9 to supply power from the battery 1 to the motor 2. The spring tension is adjustable by handwheel 8, and the electrical circuit includes a switch 10 which closes only when a rider is seated. As pedal effort ceases the sensor sprocket moves upwardly and disconnects power to the motor. A delay device may be included in switch 9 to prevent rapid opening and closing in response to short term pedal effort. The delay device may be such that motor current is cut-off only when the pedal force has diminished to a level which is a given amount below the force which caused switch 9 to close. In another embodiment (Fig. 3, not shown) the relative fore-and-aft positions of the drive and sensor sprockets are reversed, the chain passing over the drive sprocket and under the sensor sprocket, the latter being moved up to close switch 9. Provision may be made for automatic recharging of the battery during, for example, down-hill running. The drive sprocket 5 is free to rotate in either direction when motor 2 is not running. Motor 2 has an output worm 14 meshing with wheel 15 freely mounted on shaft 16. A clutch slider 20 splined to shaft 16 is movable by a linkage 22 to engage ratchet dog clutch 27 on the wheel 15 to drive the shaft and sprocket 1, the linkage being actuated by the sensor sprocket.
GB451074A 1974-01-31 1974-01-31 Manually or pedally propelled vehicles such as bicycles Expired GB1504121A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
GB451074A GB1504121A (en) 1974-01-31 1974-01-31 Manually or pedally propelled vehicles such as bicycles
NL7500999A NL7500999A (en) 1974-01-31 1975-01-28 VEHICLE.
DE19752503720 DE2503720A1 (en) 1974-01-31 1975-01-30 VEHICLE WITH AUXILIARY ELECTRIC DRIVE
FR7503096A FR2259741B3 (en) 1974-01-31 1975-01-31

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB451074A GB1504121A (en) 1974-01-31 1974-01-31 Manually or pedally propelled vehicles such as bicycles

Publications (1)

Publication Number Publication Date
GB1504121A true GB1504121A (en) 1978-03-15

Family

ID=9778569

Family Applications (1)

Application Number Title Priority Date Filing Date
GB451074A Expired GB1504121A (en) 1974-01-31 1974-01-31 Manually or pedally propelled vehicles such as bicycles

Country Status (4)

Country Link
DE (1) DE2503720A1 (en)
FR (1) FR2259741B3 (en)
GB (1) GB1504121A (en)
NL (1) NL7500999A (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2145382A (en) * 1983-08-24 1985-03-27 Nagel Kennedy & Ass Pedal and motor driven tricycle
DE8713724U1 (en) * 1987-10-13 1988-03-03 Kriehn, Reinhard, 2090 Winsen, De
EP0408074A1 (en) * 1989-07-13 1991-01-16 Honda Giken Kogyo Kabushiki Kaisha Electric motor driving vehicle and power unit thereof
EP0696537A3 (en) * 1994-08-08 1996-04-17 Yamaha Motor Co Ltd Electric motor operated bicycle
GB2341364A (en) * 1998-09-04 2000-03-15 Eleon Systems Inc Electrically-assisted pedal cycle
WO2006091089A2 (en) * 2005-02-28 2006-08-31 Idbike Method and device for measuring the chain force in a bicycle
EP2657120A1 (en) * 2012-04-25 2013-10-30 Robert Bosch Gmbh Electric bicycle and drive kit for an electric bicycle
EP3333062A1 (en) * 2016-12-07 2018-06-13 Yamaha Hatsudoki Kabushiki Kaisha Straddled electric vehicle

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BR7600288A (en) * 1975-01-21 1976-08-31 Lucas Industries Ltd ELECTRICALLY ASSISTED BICYCLE
GB1546069A (en) * 1975-06-21 1979-05-16 Lucas Industries Ltd Cycle
GB1585055A (en) * 1976-06-11 1981-02-25 Lucas Industries Ltd Cycles
FR2456658A1 (en) * 1979-05-14 1980-12-12 Bari Hugo BICYCLE
US4541500A (en) * 1981-11-12 1985-09-17 Egon Gelhard Bicycle, in particular with an electromotor
DE3208345A1 (en) * 1982-03-09 1983-09-15 Egon 5000 Köln Gelhard Cycle with a drive by means of an electric motor
EP0869053B1 (en) * 1991-06-04 2003-04-23 Yamaha Hatsudoki Kabushiki Kaisha Muscle-operated vehicle
JP2634121B2 (en) * 1992-03-06 1997-07-23 ヤマハ発動機株式会社 Bicycle with electric motor and motor control method therefor
US5370200A (en) * 1992-05-11 1994-12-06 Yamaha Hatsudoki Kabushiki Kaisha Bicycle with electric motor
FR2699491A1 (en) * 1992-12-17 1994-06-24 Duclos Vincent Three wheeled thermal or electric vehicle
JP3377258B2 (en) * 1993-07-23 2003-02-17 ヤマハ発動機株式会社 Vehicle with electric motor
US5758735A (en) * 1996-07-26 1998-06-02 Aerovironment, Inc. High performance bicycle propulsion
DE19736611A1 (en) * 1997-08-22 1998-10-01 Werner K Dipl Ing Mayer Drive arrangement for bicycle, etc.
DE19737568C1 (en) * 1997-08-28 1999-03-25 Heinzmann Gmbh Co Kg Fritz Bicycle with auxiliary electric motor
DE19955863A1 (en) * 1999-11-20 2001-05-23 Heinzmann Gmbh Co Kg Fritz Electrically-assisted bicycle uses biomechanical movement direction sensor for activating and de-activating different operating regions of electric motor characteristic field

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2145382A (en) * 1983-08-24 1985-03-27 Nagel Kennedy & Ass Pedal and motor driven tricycle
DE8713724U1 (en) * 1987-10-13 1988-03-03 Kriehn, Reinhard, 2090 Winsen, De
EP0408074A1 (en) * 1989-07-13 1991-01-16 Honda Giken Kogyo Kabushiki Kaisha Electric motor driving vehicle and power unit thereof
US5101924A (en) * 1989-07-13 1992-04-07 Honda Giken Kogyo Kabushiki Kaisha Electric motor driven vehicle and power unit thereof
EP0696537A3 (en) * 1994-08-08 1996-04-17 Yamaha Motor Co Ltd Electric motor operated bicycle
US5755304A (en) * 1994-08-08 1998-05-26 Yamaha Hatsudoki Kabushiki Kaisha Electric motor operated wheel
GB2341364A (en) * 1998-09-04 2000-03-15 Eleon Systems Inc Electrically-assisted pedal cycle
WO2006091089A2 (en) * 2005-02-28 2006-08-31 Idbike Method and device for measuring the chain force in a bicycle
WO2006091089A3 (en) * 2005-02-28 2006-12-14 Idbike Method and device for measuring the chain force in a bicycle
US7814800B2 (en) 2005-02-28 2010-10-19 Idbike C.V. Method and device for measuring the chain force in a bicycle
EP2657120A1 (en) * 2012-04-25 2013-10-30 Robert Bosch Gmbh Electric bicycle and drive kit for an electric bicycle
EP3333062A1 (en) * 2016-12-07 2018-06-13 Yamaha Hatsudoki Kabushiki Kaisha Straddled electric vehicle
US10632840B2 (en) 2016-12-07 2020-04-28 Yamaha Hatsudoki Kabushiki Kaisha Straddled electric vehicle and electric power unit

Also Published As

Publication number Publication date
FR2259741B3 (en) 1977-10-21
FR2259741A1 (en) 1975-08-29
DE2503720A1 (en) 1975-08-07
NL7500999A (en) 1975-08-04

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Legal Events

Date Code Title Description
PS Patent sealed
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
PE20 Patent expired after termination of 20 years

Effective date: 19950122