FR2292409A7 - Motor cycle with constant tension chain - has variable geometry frame with wheel moving in arc centred on drive chain wheel - Google Patents

Motor cycle with constant tension chain - has variable geometry frame with wheel moving in arc centred on drive chain wheel

Info

Publication number
FR2292409A7
FR2292409A7 FR7439100A FR7439100A FR2292409A7 FR 2292409 A7 FR2292409 A7 FR 2292409A7 FR 7439100 A FR7439100 A FR 7439100A FR 7439100 A FR7439100 A FR 7439100A FR 2292409 A7 FR2292409 A7 FR 2292409A7
Authority
FR
France
Prior art keywords
wheel
chain
constant tension
motor cycle
variable geometry
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
FR7439100A
Other languages
French (fr)
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.)
MENET REGIS
Original Assignee
MENET REGIS
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 MENET REGIS filed Critical MENET REGIS
Priority to FR7439100A priority Critical patent/FR2292409A7/en
Application granted granted Critical
Publication of FR2292409A7 publication Critical patent/FR2292409A7/en
Expired 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
    • B62K11/00—Motorcycles, engine-assisted cycles or motor scooters with one or two wheels
    • 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
    • B62K25/28—Axle suspensions for mounting axles resiliently on cycle frame or fork with pivoted chain-stay
    • B62K25/283—Axle suspensions for mounting axles resiliently on cycle frame or fork with pivoted chain-stay for cycles without a pedal crank, e.g. motorcycles

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Arrangement Or Mounting Of Propulsion Units For Vehicles (AREA)

Abstract

The motorcycle transmission has a chain which is maintained at constant tension, whatever the position of the driven wheel. The driven wheel, when the suspension operates moves in the arc of a circle, having the chain drive wheel as its centre. The suspension is of a type which can be varied for the height of the motor cycle above the ground, hence varying the drive geometry, the suspension being of the oscillating arm type with fixings co-axial with the chain drive wheel. The chain drive wheel is carried on a thin supplementary shaft driven from a gear box shaft to enable this.
FR7439100A 1974-11-20 1974-11-20 Motor cycle with constant tension chain - has variable geometry frame with wheel moving in arc centred on drive chain wheel Expired FR2292409A7 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7439100A FR2292409A7 (en) 1974-11-20 1974-11-20 Motor cycle with constant tension chain - has variable geometry frame with wheel moving in arc centred on drive chain wheel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7439100A FR2292409A7 (en) 1974-11-20 1974-11-20 Motor cycle with constant tension chain - has variable geometry frame with wheel moving in arc centred on drive chain wheel

Publications (1)

Publication Number Publication Date
FR2292409A7 true FR2292409A7 (en) 1976-06-18

Family

ID=9145368

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7439100A Expired FR2292409A7 (en) 1974-11-20 1974-11-20 Motor cycle with constant tension chain - has variable geometry frame with wheel moving in arc centred on drive chain wheel

Country Status (1)

Country Link
FR (1) FR2292409A7 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2405858A1 (en) * 1977-10-14 1979-05-11 Plisson Jean Lionel Rear suspension for off-road motorcycle - has inclined shock absorber units anchored mid-way along swinging arms
FR2480699A1 (en) * 1980-04-18 1981-10-23 Lebaron Richard Motorcycle frame swing arm mounting - has pivot axis coinciding with that of engine output shaft
FR2568522A1 (en) * 1984-08-03 1986-02-07 Bourcier Carbon Christian Improved suspension with level correction

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2405858A1 (en) * 1977-10-14 1979-05-11 Plisson Jean Lionel Rear suspension for off-road motorcycle - has inclined shock absorber units anchored mid-way along swinging arms
FR2480699A1 (en) * 1980-04-18 1981-10-23 Lebaron Richard Motorcycle frame swing arm mounting - has pivot axis coinciding with that of engine output shaft
FR2568522A1 (en) * 1984-08-03 1986-02-07 Bourcier Carbon Christian Improved suspension with level correction

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Legal Events

Date Code Title Description
ST Notification of lapse