GB1512806A - Motorcycle front-end suspension - Google Patents

Motorcycle front-end suspension

Info

Publication number
GB1512806A
GB1512806A GB3088775A GB3088775A GB1512806A GB 1512806 A GB1512806 A GB 1512806A GB 3088775 A GB3088775 A GB 3088775A GB 3088775 A GB3088775 A GB 3088775A GB 1512806 A GB1512806 A GB 1512806A
Authority
GB
United Kingdom
Prior art keywords
brake
fork
valve
chambers
shock
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
GB3088775A
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.)
Honda Motor Co Ltd
Original Assignee
Honda Motor 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
Application filed by Honda Motor Co Ltd filed Critical Honda Motor Co Ltd
Priority to GB3088775A priority Critical patent/GB1512806A/en
Priority to FR7733503A priority patent/FR2407855A1/en
Publication of GB1512806A publication Critical patent/GB1512806A/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
    • B62K25/06—Axle suspensions for mounting axles resiliently on cycle frame or fork with telescopic fork, e.g. including auxiliary rocking arms
    • B62K25/08—Axle suspensions for mounting axles resiliently on cycle frame or fork with telescopic fork, e.g. including auxiliary rocking arms for front wheel
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G17/00—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load
    • B60G17/005—Suspension locking arrangements

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Axle Suspensions And Sidecars For Cycles (AREA)
  • Fluid-Damping Devices (AREA)
  • Braking Arrangements (AREA)

Abstract

1512806 Locking suspension units on braking HONDA GIKEN KOGYO KK 23 July 1975 30887/75 Heading F2S [Also in Division B7] In a motor cycle having a front fork comprising a pair of telescopic shock absorbers, and a brake on the front wheel, the brake includes an element, which is angularly displaced relative to the fork when the brake is applied to actuate means arranged to resist compression of the shock absorbers by extra load transferred to the front wheel due to application of the brake. In Fig. 1 each leg of the fork 20 comprises a fork tube 22 telescopically engaged with a lower casing 21, and the mounting plate 14 of an internal expanding shoe brake is rotatably mounted on the front axle 11. Linkage 40, 41, 46 extends between the mounting plate 14 and a lower bridge member 33 connecting the tubes 22 so that torque acting on the plate 14 when the brake is applied produces an upward force on the member 33 which balances the transfer of load on to the front fork 20 resulting from the braking action. In Fig. 4, each of the shock absorbers in the front fork 20 includes first and second chambers A, C between which hydraulic fluid flows when the fork is compressed, and flow between the chambers A, C is inhibited when the brake is applied. The brake mounting plate 14 is connected by linkage 111, 114, 117 to a locking valve 105 which is normally held by a spring 109 in a position wherein the chambers A, C communicate through passages 103, 104 and a space S but closes when the brake is applied. The arrangement is such that if the forks are subjected to a shock load when the brake is applied the valve 105 is forced open by increased pressure in the chamber A so that the shock can be absorbed. A one-way valve 107 allows extension of the forks evenwhen the valve 105 is closed. In Fig. 5 (not shown) the front wheel is provided with a disc brake including a caliper which is pivotally mounted on one leg of the front fork and arranged to actuate a locking valve when the brake is applied. The locking valve may have a leak hole which permits limited communication between the chambers of the shock absorber even when the valve is closed.
GB3088775A 1975-07-23 1975-07-23 Motorcycle front-end suspension Expired GB1512806A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB3088775A GB1512806A (en) 1975-07-23 1975-07-23 Motorcycle front-end suspension
FR7733503A FR2407855A1 (en) 1975-07-23 1977-11-08 MOTORCYCLE FRONT WHEEL SUSPENSION WITH MEANS TO LIMIT THE COMPRESSION OF THE FRONT TELESCOPIC FORK WHEN BRAKING

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB3088775A GB1512806A (en) 1975-07-23 1975-07-23 Motorcycle front-end suspension
FR7733503A FR2407855A1 (en) 1975-07-23 1977-11-08 MOTORCYCLE FRONT WHEEL SUSPENSION WITH MEANS TO LIMIT THE COMPRESSION OF THE FRONT TELESCOPIC FORK WHEN BRAKING

Publications (1)

Publication Number Publication Date
GB1512806A true GB1512806A (en) 1978-06-01

Family

ID=26220285

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3088775A Expired GB1512806A (en) 1975-07-23 1975-07-23 Motorcycle front-end suspension

Country Status (2)

Country Link
FR (1) FR2407855A1 (en)
GB (1) GB1512806A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2493256A1 (en) * 1980-11-04 1982-05-07 Showa Mfg FRONT FORK OF MOTORCYCLE
EP0057220A1 (en) * 1980-08-06 1982-08-11 Barry John Schultz Vehicular suspension.
GB2128944A (en) * 1982-10-09 1984-05-10 Bayerische Motoren Werke Ag Front wheel suspension means for a motor-cycle
GB2168441A (en) * 1984-11-06 1986-06-18 Honda Motor Co Ltd Anti-dive braking system for the front wheel of a motorcycle
GB2256913A (en) * 1991-06-06 1992-12-23 Aveling Barford Vehicle suspension
GB2294434A (en) * 1994-10-26 1996-05-01 Dennis Frederick Barber Lockable rear suspension for grass track motorcycle

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2503082A1 (en) * 1981-04-07 1982-10-08 Eric Offenstadt WHEEL SUSPENSION, IN PARTICULAR FOR MOTORCYCLES

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0057220A1 (en) * 1980-08-06 1982-08-11 Barry John Schultz Vehicular suspension.
EP0057220A4 (en) * 1980-08-06 1984-09-05 Barry John Schultz Vehicular suspension.
FR2493256A1 (en) * 1980-11-04 1982-05-07 Showa Mfg FRONT FORK OF MOTORCYCLE
GB2128944A (en) * 1982-10-09 1984-05-10 Bayerische Motoren Werke Ag Front wheel suspension means for a motor-cycle
GB2168441A (en) * 1984-11-06 1986-06-18 Honda Motor Co Ltd Anti-dive braking system for the front wheel of a motorcycle
GB2256913A (en) * 1991-06-06 1992-12-23 Aveling Barford Vehicle suspension
GB2294434A (en) * 1994-10-26 1996-05-01 Dennis Frederick Barber Lockable rear suspension for grass track motorcycle
GB2294434B (en) * 1994-10-26 1998-06-03 Dennis Frederick Barber Improvements relating to racing motorcycles

Also Published As

Publication number Publication date
FR2407855B1 (en) 1981-07-10
FR2407855A1 (en) 1979-06-01

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee