GB421538A - Improvements to the spring forks of motor-cycles and the like - Google Patents

Improvements to the spring forks of motor-cycles and the like

Info

Publication number
GB421538A
GB421538A GB1411433A GB1411433A GB421538A GB 421538 A GB421538 A GB 421538A GB 1411433 A GB1411433 A GB 1411433A GB 1411433 A GB1411433 A GB 1411433A GB 421538 A GB421538 A GB 421538A
Authority
GB
United Kingdom
Prior art keywords
links
springs
resistance
fork
rate
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
GB1411433A
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.)
COLIN ROY BARTY
Original Assignee
COLIN ROY BARTY
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 COLIN ROY BARTY filed Critical COLIN ROY BARTY
Priority to GB1411433A priority Critical patent/GB421538A/en
Publication of GB421538A publication Critical patent/GB421538A/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
    • 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
    • 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
    • B62K2201/00—Springs used in cycle frames or parts thereof
    • B62K2201/04—Helical springs

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Fluid-Damping Devices (AREA)

Abstract

421,538. Spring forks. BARTY, C. R., 10, Singlewell Road, Gravesend, Kent. May 16, 1933, No. 14114. [Class 136 (iii)] In a spring fork for motor-cycles of the type mounted on the steering- head c by pairs of links d, d<1>, e, e<1> and supported by one or more main compression springs f, auxiliary tension springs j, j<1> are mounted to extend between the pairs of links and are pivotally connected thereto at points intermediate the pivoted ends of the links. As shown, the end fittings of the tension springs j, j<1> are pivoted to lugs h, h<1> projecting downwardly and upwardly respectively from the links d, d<1> and e, e<1>. The pivotal points of the links and auxiliary springs are so arranged that the rate of increase of the resistance of the auxiliary springs increases progressively to the limits of upward and downward movement of the fork, and that the resistance and the rate of increase of resistance to downward (rebound) movement of the fork are greater than the resistance and the rate of increase of resistance to the upward movement. The ends of the springs j, j<1> may be fitted with screwed spindles for adjusting their tension. The positions of the points of connection of the springs j, j<1> may also be made adjustable by pivoting the lugs h, h<1> to the links and fitting them with screw-adjustment spindles and locking-means. Friction dampers may be provided at the link pivots.
GB1411433A 1933-05-16 1933-05-16 Improvements to the spring forks of motor-cycles and the like Expired GB421538A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1411433A GB421538A (en) 1933-05-16 1933-05-16 Improvements to the spring forks of motor-cycles and the like

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1411433A GB421538A (en) 1933-05-16 1933-05-16 Improvements to the spring forks of motor-cycles and the like

Publications (1)

Publication Number Publication Date
GB421538A true GB421538A (en) 1934-12-17

Family

ID=10035238

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1411433A Expired GB421538A (en) 1933-05-16 1933-05-16 Improvements to the spring forks of motor-cycles and the like

Country Status (1)

Country Link
GB (1) GB421538A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2491858A1 (en) * 1980-10-09 1982-04-16 Honda Motor Co Ltd SUPERIOR FORK OF FRONT SUSPENSION OF MOTORCYCLE RESISTANT, RIGID AND OF A REDUCED WEIGHT
FR2762571A1 (en) * 1997-04-29 1998-10-30 Delta Production Bicycle wheel fork with combined suspension and shock absorbing

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2491858A1 (en) * 1980-10-09 1982-04-16 Honda Motor Co Ltd SUPERIOR FORK OF FRONT SUSPENSION OF MOTORCYCLE RESISTANT, RIGID AND OF A REDUCED WEIGHT
FR2762571A1 (en) * 1997-04-29 1998-10-30 Delta Production Bicycle wheel fork with combined suspension and shock absorbing

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