FR2418742A1 - Motorcycle front suspension - has pivoted cranks and ball joints forming deformable quadrilateral linkage which resists change of shape - Google Patents

Motorcycle front suspension - has pivoted cranks and ball joints forming deformable quadrilateral linkage which resists change of shape

Info

Publication number
FR2418742A1
FR2418742A1 FR7805927A FR7805927A FR2418742A1 FR 2418742 A1 FR2418742 A1 FR 2418742A1 FR 7805927 A FR7805927 A FR 7805927A FR 7805927 A FR7805927 A FR 7805927A FR 2418742 A1 FR2418742 A1 FR 2418742A1
Authority
FR
France
Prior art keywords
ball joints
front suspension
shape
deformable quadrilateral
motorcycle front
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.)
Granted
Application number
FR7805927A
Other languages
French (fr)
Other versions
FR2418742B1 (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.)
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
Application filed by Individual filed Critical Individual
Priority to FR7805927A priority Critical patent/FR2418742A1/en
Publication of FR2418742A1 publication Critical patent/FR2418742A1/en
Application granted granted Critical
Publication of FR2418742B1 publication Critical patent/FR2418742B1/fr
Granted legal-status Critical Current

Links

Classifications

    • 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
    • B62K25/00—Axle suspensions
    • B62K25/04—Axle suspensions for mounting axles resiliently on cycle frame or fork
    • B62K25/12—Axle suspensions for mounting axles resiliently on cycle frame or fork with rocking arm pivoted on each fork leg
    • B62K25/22—Axle suspensions for mounting axles resiliently on cycle frame or fork with rocking arm pivoted on each fork leg with more than one arm on each fork leg
    • B62K25/24—Axle suspensions for mounting axles resiliently on cycle frame or fork with rocking arm pivoted on each fork leg with more than one arm on each fork leg for front wheel

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Vehicle Body Suspensions (AREA)
  • Pivots And Pivotal Connections (AREA)

Abstract

The front suspension for a motor cycle is of the "deformable quadrilateral" type. Cranks (9, 10, 11) are pivoted on the fork (2) and steering shaft, the crank pivots using three ball joints (3, 4, 7). The ball joints are joined to an assembly opposing all variation of relative distances between the ball joints. The opposing force assembly can be of bars or tubes in triangular formation, with the ball joints at each apex.
FR7805927A 1978-03-01 1978-03-01 Motorcycle front suspension - has pivoted cranks and ball joints forming deformable quadrilateral linkage which resists change of shape Granted FR2418742A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7805927A FR2418742A1 (en) 1978-03-01 1978-03-01 Motorcycle front suspension - has pivoted cranks and ball joints forming deformable quadrilateral linkage which resists change of shape

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7805927A FR2418742A1 (en) 1978-03-01 1978-03-01 Motorcycle front suspension - has pivoted cranks and ball joints forming deformable quadrilateral linkage which resists change of shape

Publications (2)

Publication Number Publication Date
FR2418742A1 true FR2418742A1 (en) 1979-09-28
FR2418742B1 FR2418742B1 (en) 1980-10-17

Family

ID=9205223

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7805927A Granted FR2418742A1 (en) 1978-03-01 1978-03-01 Motorcycle front suspension - has pivoted cranks and ball joints forming deformable quadrilateral linkage which resists change of shape

Country Status (1)

Country Link
FR (1) FR2418742A1 (en)

Cited By (44)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2447849A1 (en) * 1979-02-01 1980-08-29 Fior Claude Front suspension system for motorcycle - has double triangular framework giving controlled wheel deflection reducing shocks to rider
EP0032170A2 (en) * 1979-11-22 1981-07-22 Diafil International S.A. A front suspension system for a motorcycle
WO1982001524A1 (en) * 1980-10-29 1982-05-13 Alain J Clavier Wheel suspension device for moving vehicles and moving vehicles provided with that device,in particular motorcycles
FR2496042A1 (en) * 1980-12-15 1982-06-18 Lgf Sarl Front suspension for motorcycle - has pivoted fork with shock absorber linkage to give elasticity and requires wheel trajectory
WO1982002864A1 (en) * 1981-02-27 1982-09-02 Alain Jean Clavier Wheel suspension device for moving vehicles and moving vehicles provided with such device,particularly for motorcycles
FR2511335A1 (en) * 1981-08-17 1983-02-18 Honda Motor Co Ltd FRONT SUSPENSION SYSTEM FOR MOTORCYCLES
US4401316A (en) * 1980-03-17 1983-08-30 Honda Giken Kogyo Kabushiki Kaisha Front suspension for motocycle
US4406475A (en) * 1980-03-17 1983-09-27 Honda Giken Kogyo Kabushiki Kaisha Front wheel suspension system for motorcycles
US4444406A (en) * 1980-12-25 1984-04-24 Honda Giken Kogyo Kabushiki Kaisha Front wheel suspension for motorcycles
FR2539375A1 (en) * 1983-01-13 1984-07-20 Bruneau Jean Bertrand MOTORCYCLE FRONT WHEEL SUSPENSION AND DIRECTION DEVICE
US4531755A (en) * 1980-10-09 1985-07-30 Honda Giken Kogyo Kabushiki Kaisha Suspension system for a front road wheel of a motorcycle
US4627632A (en) * 1985-07-29 1986-12-09 Mckagen Ollie H Cycle suspension system
EP0211638A2 (en) * 1985-08-01 1987-02-25 Honda Giken Kogyo Kabushiki Kaisha Suspension system for a vehicle
FR2610589A1 (en) * 1987-02-09 1988-08-12 Savard Franck Directional wheel hub making it possible to give or adjust the caster independently of the caster angle, and appended systems making it possible to vary various parameters on a 2-wheeled vehicle
EP0445841A2 (en) * 1987-02-09 1991-09-11 SAVARD, Franck Jean Motorcycle with frontwheeldrive and steering with torque-rod
WO1999038760A1 (en) * 1998-01-30 1999-08-05 Lansac Herve Suspended front fork for mountain bike and motorcycle
FR2967641A1 (en) * 2010-11-19 2012-05-25 Eric Jean Offenstadt Device for optimizing front suspension of e.g. bicycles used in sports and super sport competition application, has hub carrier whose angular variation is neutralized by rotation of tire by valve during braking
US10196106B1 (en) 2017-07-27 2019-02-05 Trvstper, Inc. Suspension assembly for a cycle
US10300979B2 (en) 2017-07-27 2019-05-28 Trvstper, Inc. Suspension assembly for a bicycle
US10308312B2 (en) 2017-07-27 2019-06-04 Trvstper, Inc. Suspension assembly for a cycle
USD859125S1 (en) 2018-02-08 2019-09-10 Trvstper, Inc. Cycle suspension rebound knob
USD860062S1 (en) 2018-02-08 2019-09-17 Trvstper, Inc. Cycle suspension assembly
USD860061S1 (en) 2018-02-08 2019-09-17 Trvstper, Inc. Cycle suspension assembly
USD861542S1 (en) 2018-02-08 2019-10-01 Trvstper, Inc. Cycle suspension assembly
US10518839B2 (en) 2017-08-29 2019-12-31 Trvstper, Inc. Inline shock absorber with coil spring for a cycle wheel suspension assembly
US10518836B2 (en) 2017-07-27 2019-12-31 Trvstper, Inc. Suspension assembly for a cycle
US10526039B2 (en) 2017-07-27 2020-01-07 Trvstper, Inc. Suspension assembly for a cycle
US10526040B2 (en) 2017-08-28 2020-01-07 Trvstper, Inc. Inline shock absorber with gas spring for a cycle wheel suspension assembly
US10549812B2 (en) 2017-08-28 2020-02-04 Trvstper, Inc. Inline shock absorber with gas spring for a cycle wheel suspension assembly
US10549813B2 (en) 2017-08-29 2020-02-04 Trvstper, Inc. Inline shock absorber with coil spring for a cycle wheel suspension assembly
USD880372S1 (en) 2018-02-08 2020-04-07 Trvstper, Inc. Cycle suspension assembly
USD880371S1 (en) 2018-02-08 2020-04-07 Trvstper, Inc. Cycle suspension assembly
USD880370S1 (en) 2018-02-08 2020-04-07 Trvstper, Inc. Cycle suspension assembly
USD880369S1 (en) 2018-02-08 2020-04-07 Trvstper, Inc. Cycle suspension assembly
US11084552B2 (en) 2018-09-25 2021-08-10 Specialized Bicycle Components, Inc. Simplified gas spring setup for a trailing link cycle wheel suspension
US11208172B2 (en) 2018-10-05 2021-12-28 Specialized Bicycle Components, Inc. Suspension pivot assemblies having a retention feature
US11230346B2 (en) 2018-09-25 2022-01-25 Specialized Bicycle Components Inc. Cycle wheel suspension assembly having gas pistons with unequal gas piston areas
US11230348B2 (en) 2018-09-25 2022-01-25 Specialized Bicycle Components, Inc. Trailing link cycle wheel suspension assembly having gas pistons with unequal gas piston areas
US11230347B2 (en) 2018-09-25 2022-01-25 Specialized Bicycle Components, Inc. Cycle wheel suspension assembly having gas pistons with unequal gas piston areas
US11273887B2 (en) 2018-10-16 2022-03-15 Specialized Bicycle Components, Inc. Cycle suspension with travel indicator
US11345432B2 (en) 2018-10-12 2022-05-31 Specialized Bicycle Components, Inc. Suspension assembly for a cycle having a fork arm with dual opposing tapers
WO2022130051A1 (en) * 2020-12-17 2022-06-23 Piaggio & C. Spa An oscillating arm front suspension for saddle riding vehicles
US11524744B2 (en) 2019-04-09 2022-12-13 Specialized Bicycle Components, Inc. Cycle suspension with rotation sensor
US11945539B2 (en) 2018-09-07 2024-04-02 Specialized Bicycle Components, Inc. Dual sided suspension assembly for a cycle wheel

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1055598A (en) * 1952-05-09 1954-02-19 Improvements to suspensions for motorcycles and the like
GB767101A (en) * 1953-09-16 1957-01-30 Douglas Marshall Improved rear wheel suspension for motor driven cycles
GB789560A (en) * 1954-05-03 1958-01-22 Nsu Werke Ag Improvements in and relating to front-wheel suspensions for faired two-wheeled vehicles
GB1319703A (en) * 1970-05-01 1973-06-06 King L W Motor bicycle assemblies
FR2332169A1 (en) * 1975-11-18 1977-06-17 Lamonde Renaud Motor:bicycle frame with combined seat and fuel tank - runs underneath engine and accommodates front and rear suspension arms with dampers below
FR2346174A2 (en) * 1975-04-03 1977-10-28 Doncque Pierre Rear suspension for motor cycle wheel - has fork pivoted to frame and attached by linkages to spring below pivot height
US4058181A (en) * 1976-03-16 1977-11-15 Buell Erik F Motorcycle suspension systems

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1055598A (en) * 1952-05-09 1954-02-19 Improvements to suspensions for motorcycles and the like
GB767101A (en) * 1953-09-16 1957-01-30 Douglas Marshall Improved rear wheel suspension for motor driven cycles
GB789560A (en) * 1954-05-03 1958-01-22 Nsu Werke Ag Improvements in and relating to front-wheel suspensions for faired two-wheeled vehicles
GB1319703A (en) * 1970-05-01 1973-06-06 King L W Motor bicycle assemblies
FR2346174A2 (en) * 1975-04-03 1977-10-28 Doncque Pierre Rear suspension for motor cycle wheel - has fork pivoted to frame and attached by linkages to spring below pivot height
FR2332169A1 (en) * 1975-11-18 1977-06-17 Lamonde Renaud Motor:bicycle frame with combined seat and fuel tank - runs underneath engine and accommodates front and rear suspension arms with dampers below
US4058181A (en) * 1976-03-16 1977-11-15 Buell Erik F Motorcycle suspension systems

Cited By (54)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2447849A1 (en) * 1979-02-01 1980-08-29 Fior Claude Front suspension system for motorcycle - has double triangular framework giving controlled wheel deflection reducing shocks to rider
EP0032170A2 (en) * 1979-11-22 1981-07-22 Diafil International S.A. A front suspension system for a motorcycle
EP0032170A3 (en) * 1979-11-22 1982-05-19 Diafil International S.A. A front suspension system for a motorcycle
US4401316A (en) * 1980-03-17 1983-08-30 Honda Giken Kogyo Kabushiki Kaisha Front suspension for motocycle
US4406475A (en) * 1980-03-17 1983-09-27 Honda Giken Kogyo Kabushiki Kaisha Front wheel suspension system for motorcycles
US4531755A (en) * 1980-10-09 1985-07-30 Honda Giken Kogyo Kabushiki Kaisha Suspension system for a front road wheel of a motorcycle
WO1982001524A1 (en) * 1980-10-29 1982-05-13 Alain J Clavier Wheel suspension device for moving vehicles and moving vehicles provided with that device,in particular motorcycles
FR2496042A1 (en) * 1980-12-15 1982-06-18 Lgf Sarl Front suspension for motorcycle - has pivoted fork with shock absorber linkage to give elasticity and requires wheel trajectory
US4444406A (en) * 1980-12-25 1984-04-24 Honda Giken Kogyo Kabushiki Kaisha Front wheel suspension for motorcycles
WO1982002864A1 (en) * 1981-02-27 1982-09-02 Alain Jean Clavier Wheel suspension device for moving vehicles and moving vehicles provided with such device,particularly for motorcycles
FR2511335A1 (en) * 1981-08-17 1983-02-18 Honda Motor Co Ltd FRONT SUSPENSION SYSTEM FOR MOTORCYCLES
FR2539375A1 (en) * 1983-01-13 1984-07-20 Bruneau Jean Bertrand MOTORCYCLE FRONT WHEEL SUSPENSION AND DIRECTION DEVICE
EP0122161A2 (en) * 1983-01-13 1984-10-17 Jean-Bertrand Bruneau Suspension device and steering device for the front wheel of a motor-cycle
EP0122161A3 (en) * 1983-01-13 1985-10-09 Jean-Bertrand Bruneau Suspension device and steering device for the front wheel of a motor-cycle
US4627632A (en) * 1985-07-29 1986-12-09 Mckagen Ollie H Cycle suspension system
EP0211638A2 (en) * 1985-08-01 1987-02-25 Honda Giken Kogyo Kabushiki Kaisha Suspension system for a vehicle
EP0211638A3 (en) * 1985-08-01 1987-04-08 Honda Giken Kogyo Kabushiki Kaisha Suspension system for a vehicle
US4723785A (en) * 1985-08-01 1988-02-09 Honda Giken Kogyo Kabushiki Kaisha Front suspension for a vehicle
FR2610589A1 (en) * 1987-02-09 1988-08-12 Savard Franck Directional wheel hub making it possible to give or adjust the caster independently of the caster angle, and appended systems making it possible to vary various parameters on a 2-wheeled vehicle
EP0445841A2 (en) * 1987-02-09 1991-09-11 SAVARD, Franck Jean Motorcycle with frontwheeldrive and steering with torque-rod
EP0445841A3 (en) * 1987-02-09 1992-02-05 Franck Jean Savard Motorcycle with frontwheeldrive and steering with torque-rod
WO1999038760A1 (en) * 1998-01-30 1999-08-05 Lansac Herve Suspended front fork for mountain bike and motorcycle
FR2774354A1 (en) * 1998-01-30 1999-08-06 Herve Lansac SUSPENDED FRONT FORK FOR ALL-TERRAIN BIKE AND MOTORCYCLE
FR2967641A1 (en) * 2010-11-19 2012-05-25 Eric Jean Offenstadt Device for optimizing front suspension of e.g. bicycles used in sports and super sport competition application, has hub carrier whose angular variation is neutralized by rotation of tire by valve during braking
US10308312B2 (en) 2017-07-27 2019-06-04 Trvstper, Inc. Suspension assembly for a cycle
US10196106B1 (en) 2017-07-27 2019-02-05 Trvstper, Inc. Suspension assembly for a cycle
US10689061B2 (en) 2017-07-27 2020-06-23 Trvstper, Inc. Suspension assembly for a cycle
US10300979B2 (en) 2017-07-27 2019-05-28 Trvstper, Inc. Suspension assembly for a bicycle
US10518836B2 (en) 2017-07-27 2019-12-31 Trvstper, Inc. Suspension assembly for a cycle
US10526039B2 (en) 2017-07-27 2020-01-07 Trvstper, Inc. Suspension assembly for a cycle
US10549815B2 (en) 2017-07-27 2020-02-04 Trvstper, Inc. Suspension assembly for a bicycle
US10549812B2 (en) 2017-08-28 2020-02-04 Trvstper, Inc. Inline shock absorber with gas spring for a cycle wheel suspension assembly
US10526040B2 (en) 2017-08-28 2020-01-07 Trvstper, Inc. Inline shock absorber with gas spring for a cycle wheel suspension assembly
US10518839B2 (en) 2017-08-29 2019-12-31 Trvstper, Inc. Inline shock absorber with coil spring for a cycle wheel suspension assembly
US10549813B2 (en) 2017-08-29 2020-02-04 Trvstper, Inc. Inline shock absorber with coil spring for a cycle wheel suspension assembly
USD880371S1 (en) 2018-02-08 2020-04-07 Trvstper, Inc. Cycle suspension assembly
USD861542S1 (en) 2018-02-08 2019-10-01 Trvstper, Inc. Cycle suspension assembly
USD880372S1 (en) 2018-02-08 2020-04-07 Trvstper, Inc. Cycle suspension assembly
USD860062S1 (en) 2018-02-08 2019-09-17 Trvstper, Inc. Cycle suspension assembly
USD880370S1 (en) 2018-02-08 2020-04-07 Trvstper, Inc. Cycle suspension assembly
USD880369S1 (en) 2018-02-08 2020-04-07 Trvstper, Inc. Cycle suspension assembly
USD859125S1 (en) 2018-02-08 2019-09-10 Trvstper, Inc. Cycle suspension rebound knob
USD860061S1 (en) 2018-02-08 2019-09-17 Trvstper, Inc. Cycle suspension assembly
US11945539B2 (en) 2018-09-07 2024-04-02 Specialized Bicycle Components, Inc. Dual sided suspension assembly for a cycle wheel
US11084552B2 (en) 2018-09-25 2021-08-10 Specialized Bicycle Components, Inc. Simplified gas spring setup for a trailing link cycle wheel suspension
US11230346B2 (en) 2018-09-25 2022-01-25 Specialized Bicycle Components Inc. Cycle wheel suspension assembly having gas pistons with unequal gas piston areas
US11230348B2 (en) 2018-09-25 2022-01-25 Specialized Bicycle Components, Inc. Trailing link cycle wheel suspension assembly having gas pistons with unequal gas piston areas
US11230347B2 (en) 2018-09-25 2022-01-25 Specialized Bicycle Components, Inc. Cycle wheel suspension assembly having gas pistons with unequal gas piston areas
US11208172B2 (en) 2018-10-05 2021-12-28 Specialized Bicycle Components, Inc. Suspension pivot assemblies having a retention feature
US11345432B2 (en) 2018-10-12 2022-05-31 Specialized Bicycle Components, Inc. Suspension assembly for a cycle having a fork arm with dual opposing tapers
US11820457B2 (en) 2018-10-16 2023-11-21 Specialized Bicycle Components, Inc. Cycle suspension with travel indicator
US11273887B2 (en) 2018-10-16 2022-03-15 Specialized Bicycle Components, Inc. Cycle suspension with travel indicator
US11524744B2 (en) 2019-04-09 2022-12-13 Specialized Bicycle Components, Inc. Cycle suspension with rotation sensor
WO2022130051A1 (en) * 2020-12-17 2022-06-23 Piaggio & C. Spa An oscillating arm front suspension for saddle riding vehicles

Also Published As

Publication number Publication date
FR2418742B1 (en) 1980-10-17

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