FR2673906A1 - Cycle with rear suspension - Google Patents

Cycle with rear suspension Download PDF

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Publication number
FR2673906A1
FR2673906A1 FR9103050A FR9103050A FR2673906A1 FR 2673906 A1 FR2673906 A1 FR 2673906A1 FR 9103050 A FR9103050 A FR 9103050A FR 9103050 A FR9103050 A FR 9103050A FR 2673906 A1 FR2673906 A1 FR 2673906A1
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FR
France
Prior art keywords
fork
fixing
frame
fixed
axis
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.)
Withdrawn
Application number
FR9103050A
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French (fr)
Inventor
Descy Alain
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Individual
Original Assignee
Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to FR9103050A priority Critical patent/FR2673906A1/en
Publication of FR2673906A1 publication Critical patent/FR2673906A1/en
Withdrawn legal-status Critical Current

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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
    • B62K25/14—Axle suspensions for mounting axles resiliently on cycle frame or fork with rocking arm pivoted on each fork leg with single arm on each fork leg
    • B62K25/20—Axle suspensions for mounting axles resiliently on cycle frame or fork with rocking arm pivoted on each fork leg with single arm on each fork leg for rear wheel

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Axle Suspensions And Sidecars For Cycles (AREA)

Abstract

Damper on the back of a bike. The independent fork (1) pivots via a stationary spindle at the centre of the arms on each side which, this spindle, is placed via a rolling-contact bearing, on the fork (2) fixed to the frame. The rear wheel hub is placed at one end and is immobilised there, and the dampers, performing their effect by bearing on the fork (2), are at the other end.

Description

L'invention a pour effet d'amortir les irrégularités d'un terrain Par l'intermédiaire d'une suspension arrière sur un vélo. The invention has the effect of absorbing the irregularities of a terrain by means of a rear suspension on a bicycle.

Sur certains vélos actuels, les amortisseurs affaiblissent la géométrie de la fourche arrière en se trouvant sous la selle, ce gui engendre une perte d'énergie en pédalant et en ayant. pour conséquence de fatiquer -davantage le cycliste car l'énergie a pour effet d'etre absorbée par l'amortisseur. Mon système d'amortisseur renforce la rigidité arrière, car l'axe (5) du pivotement de la fourche est plus près du logement pour recevoir le moyeu arrière. On some current bikes, the shock absorbers weaken the geometry of the rear fork while being under the saddle, this mistletoe generates a loss of energy by pedaling and having. as a consequence of making the cyclist fatigued, since the energy has the effect of being absorbed by the shock absorber. My shock absorber system reinforces the rear rigidity, because the axis (5) of the pivoting of the fork is closer to the housing to receive the rear hub.

La géométrie de cette fourche (1 et 2), par sa conception, assure une grande rigidité de 1 'ensemble cadre et fourche, rendant le vélo nerveux, tout en ayant un pouvoir d'efficacité d'amortir les irrégularités du terrain. The geometry of this fork (1 and 2), by its design, ensures great rigidity of the frame and fork assembly, making the bike nervous, while having an efficiency power to absorb the irregularities of the terrain.

La fourche dite base arrière (1) - la fourche fixe ((2) faisant partie du cadre (1 ) - les amortisseurs (9) - l'axe de pivotement (5) - emplacement de l'axe de roue du moyeu arrière (3) - roulement serti (7) - patte ou emplacement (8) - trou fileté (4) - vis (5). The fork called rear base (1) - the fixed fork ((2) forming part of the frame (1) - the shock absorbers (9) - the pivot axis (5) - location of the wheel axle of the rear hub ( 3) - crimped bearing (7) - lug or location (8) - threaded hole (4) - screw (5).

La fourche (1) peut être réalisée en matière composite, métal ferreux ou non ferreux, par moulage, usinage, cintrage de profil approprié pour une réalisation robuste. Sur la fourche (1), à l'endroit du cintrage, d'un côté ou des deux, est pourvue une partie sur-élevée (6) qui est réalisée dans la masse ou rapportée par vissage ou soudage. Cette patte (6) est prèvue pour la fixation du dessus de l'amortisseur (9). De plus, si cette patte est amovible, on peut aisément la changer en cas de déterrioration. La fourche (2) fait partie intégrale du cadre du vélo pour une meilleure rigidité de l'ensemble. Cette fourche, étant positionnée au dessus du pédalier, donne l'avantaged'avoir une base haute et de pouvoir retirer la chaine entièrement. The fork (1) can be made of composite material, ferrous or non-ferrous metal, by molding, machining, profile bending suitable for a robust construction. On the fork (1), at the point of bending, on one side or both, is provided an elevated part (6) which is produced in the mass or attached by screwing or welding. This tab (6) is provided for fixing the top of the shock absorber (9). In addition, if this tab is removable, it can easily be changed in the event of deterioration. The fork (2) is an integral part of the bicycle frame for better rigidity of the whole. This fork, being positioned above the crankset, gives the advantage of having a high base and being able to remove the chain entirely.

Sur cette même fourche (2), d'un côté ou des deux, est prévue une patte (8) pour recevoir le dessous de l'amortisseur (9), qui est fixe ou amovible. On this same fork (2), on one or both sides, is provided a tab (8) for receiving the bottom of the shock absorber (9), which is fixed or removable.

Dans la fourche (2), cadre (lO),vient se loger la fourche (1) indépendante, puis, par l'intermédiaire d' une vis faisant office de pivot, est fixé l'ensemble de la fourche (1 et 2) ; Vient ensuite se loger l'amortisseur, ou les deux, aux endroits prévus à cet effet, puis fixé. La réalisation de ces ensembles peut être artisanale ou industrielle.  In the fork (2), frame (10), the independent fork (1) is housed, then, by means of a screw acting as a pivot, the whole of the fork (1 and 2) is fixed. ; Then comes the shock absorber, or both, in the places provided for this purpose, and then fixed. The realization of these sets can be artisanal or industrial.

Claims (10)

REVENDICATIONS 1/ La fourche arrière pour cycle assurant l'amortissement caractérisé en ce qu'elle comporte une fourche (2) fixée au cadre, une fourche (1) indépendante articulée par apport à la fourche (2) et un moyen (9) d'amortissement du déplacement de la fourche (1) par apport à la fourche fixe (2). 1 / The rear fork for cycle ensuring the damping characterized in that it comprises a fork (2) fixed to the frame, an independent fork (1) articulated by contribution to the fork (2) and a means (9) of damping of the displacement of the fork (1) by contribution to the fixed fork (2). 2/ Dispositif, selon la revendication (1) caractérisé en ce que la fourche (1) indépendante de son support, est prévu à ses extrémités (3) d'un usinage d'empla -cement recevant l'axe du moyen arrière de roue pour la fixation de celle-ci. 2 / Device according to claim (1) characterized in that the fork (1) independent of its support, is provided at its ends (3) of a machining location receiving the axis of the rear wheel means for fixing it. 3/ Dispositif selon l'une quelconque des revendications précédente caractérisé en ce que la fourche (1) et sur chaque branche dans l'axe de la longueur perce d'un trou filtré (4) qui reçoit les vis (5) de fixation sur la fourche (2) cadre (10) 3 / Device according to any one of the preceding claims, characterized in that the fork (1) and on each branch in the axis of the length drills a filtered hole (4) which receives the screws (5) for fixing on the fork (2) frame (10) 4/ Dispositif selon l'une quelconque des revendications précédente caractérisée en ce qu'elle comporte sur la partie arrondie de la fourche (1) de chaque côté une patte (6) de support pour fixer le dessus de l'amortisseur (9). 4 / Device according to any one of the preceding claims, characterized in that it comprises on the rounded part of the fork (1) on each side a bracket (6) for fixing the top of the damper (9). 5/ Dispositif, selon la revendication (1), caractérisé par une fourche (2) faisant partie intégrale du cadre (10) pour une meilleure rigidité, étant munie à l'extra -mité de ces bras d'un roulement (7) serti, facilitant le pouvoir de pivotement de la fourche (1) après la fixation de celle-ci. 5 / Device according to claim (1), characterized by a fork (2) forming an integral part of the frame (10) for better rigidity, being provided at the end of these arms with a bearing (7) crimped , facilitating the pivoting power of the fork (1) after fixing it. 6/ Dispositif, selon la revendication (5), caractérisé sur la partie arrondie de chaque coté de la fourche (2) un logement (8) ou patte (8) est prévu pour recevoir le dessous de l'amortisseur (9) afin de le fixer. 6 / Device according to claim (5), characterized on the rounded part on each side of the fork (2) a housing (8) or bracket (8) is provided to receive the underside of the damper (9) in order to fix it. 7/ Dispositif, selon la revendication (1-2-3), caractérisé par un assemblage de la fourche (1) et de la fourche (2) cadre (10) par les vis (5) passant dans chaque axe du roulement (7) venant se fixer dans le filetage (4) prévu à cet effet sur la fourche (1) puis bloquer. 7 / Device according to claim (1-2-3), characterized by an assembly of the fork (1) and the fork (2) frame (10) by the screws (5) passing in each axis of the bearing (7 ) coming to be fixed in the thread (4) provided for this purpose on the fork (1) then block. 8/ Dispositif, selon l'une revendication quelconque précédente prise dans son ensemble, caractérisé par la fixation d'un ou deux amortisseurs (9) entre la fourche (1) et la fourche (2) aux endroits (8 et 6) prévus à cet effet.  8 / Device according to any preceding claim taken as a whole, characterized by the fixing of one or two shock absorbers (9) between the fork (1) and the fork (2) at the locations (8 and 6) provided for this effect. 9/ Dispositif, selon l'une quelconque des revendications précédentes caractérisée en ce que les pattes (6-8) de fixation des amortisseurs sont amovibles. 9 / Device according to any one of the preceding claims, characterized in that the lugs (6-8) for fixing the shock absorbers are removable. 10/ Dispositif, selon l'une quelconque des revendications (1 à 8) caractérisé en ce que les pattes (6-8) font partie intégrale des fourches (1) ou (2).  10 / Device according to any one of claims (1 to 8) characterized in that the legs (6-8) are an integral part of the forks (1) or (2).
FR9103050A 1991-03-13 1991-03-13 Cycle with rear suspension Withdrawn FR2673906A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR9103050A FR2673906A1 (en) 1991-03-13 1991-03-13 Cycle with rear suspension

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9103050A FR2673906A1 (en) 1991-03-13 1991-03-13 Cycle with rear suspension

Publications (1)

Publication Number Publication Date
FR2673906A1 true FR2673906A1 (en) 1992-09-18

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Family Applications (1)

Application Number Title Priority Date Filing Date
FR9103050A Withdrawn FR2673906A1 (en) 1991-03-13 1991-03-13 Cycle with rear suspension

Country Status (1)

Country Link
FR (1) FR2673906A1 (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0645300A1 (en) * 1993-09-16 1995-03-29 Cannondale Corporation Bicycle with trailing arm wheel suspensions
EP0774406A1 (en) * 1995-10-20 1997-05-21 Telai Olagnero Sas di Olagnero Vittorio & C. Bicycle frame with elastic suspension for the rear wheel
US5762354A (en) * 1996-02-12 1998-06-09 Brummer; Timothy E. Cycle rear suspension system
US5762353A (en) * 1996-02-05 1998-06-09 Miller; John Jeremy Rear suspension bicycle frame
FR2786750A1 (en) * 1998-12-08 2000-06-09 Jean Luc Dusserre Chassis for two wheeled motorized vehicle comprises front and rear forks with pivots and hinges and suspension arranged to transmit braking and transmission loads through the frame towards the ground.
US7267351B2 (en) * 2002-04-15 2007-09-11 Specialized Bicycle Components. Inc. Frame assembly for a bicycle
EP3160833A4 (en) * 2014-06-25 2018-03-21 Vasttech IP Pty Ltd A bicycle rear wheel suspension system
USD958702S1 (en) 2020-08-05 2022-07-26 Specialized Bicycle Components, Inc. Bicycle frame

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0645300A1 (en) * 1993-09-16 1995-03-29 Cannondale Corporation Bicycle with trailing arm wheel suspensions
EP0774406A1 (en) * 1995-10-20 1997-05-21 Telai Olagnero Sas di Olagnero Vittorio & C. Bicycle frame with elastic suspension for the rear wheel
US5762353A (en) * 1996-02-05 1998-06-09 Miller; John Jeremy Rear suspension bicycle frame
US5762354A (en) * 1996-02-12 1998-06-09 Brummer; Timothy E. Cycle rear suspension system
FR2786750A1 (en) * 1998-12-08 2000-06-09 Jean Luc Dusserre Chassis for two wheeled motorized vehicle comprises front and rear forks with pivots and hinges and suspension arranged to transmit braking and transmission loads through the frame towards the ground.
US7267351B2 (en) * 2002-04-15 2007-09-11 Specialized Bicycle Components. Inc. Frame assembly for a bicycle
EP3160833A4 (en) * 2014-06-25 2018-03-21 Vasttech IP Pty Ltd A bicycle rear wheel suspension system
AU2015281783B2 (en) * 2014-06-25 2019-06-27 Vasttech Ip Pty Ltd A bicycle rear wheel suspension system
USD958702S1 (en) 2020-08-05 2022-07-26 Specialized Bicycle Components, Inc. Bicycle frame

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