FR2776979A3 - Rear suspension for mountain bicycle - Google Patents

Rear suspension for mountain bicycle Download PDF

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Publication number
FR2776979A3
FR2776979A3 FR9804349A FR9804349A FR2776979A3 FR 2776979 A3 FR2776979 A3 FR 2776979A3 FR 9804349 A FR9804349 A FR 9804349A FR 9804349 A FR9804349 A FR 9804349A FR 2776979 A3 FR2776979 A3 FR 2776979A3
Authority
FR
France
Prior art keywords
lower link
tube
seat tube
bottom bracket
shock absorber
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
FR9804349A
Other languages
French (fr)
Other versions
FR2776979B3 (en
Inventor
Sebastien Dautry
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
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to FR9804349A priority Critical patent/FR2776979B3/en
Publication of FR2776979A3 publication Critical patent/FR2776979A3/en
Application granted granted Critical
Publication of FR2776979B3 publication Critical patent/FR2776979B3/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62J—CYCLE SADDLES OR SEATS; AUXILIARY DEVICES OR ACCESSORIES SPECIALLY ADAPTED TO CYCLES AND NOT OTHERWISE PROVIDED FOR, e.g. ARTICLE CARRIERS OR CYCLE PROTECTORS
    • B62J1/00—Saddles or other seats for cycles; Arrangement thereof; Component parts
    • B62J1/02—Saddles resiliently mounted on the frame; Equipment therefor, e.g. springs
    • B62J1/06—Saddles capable of parallel motion up and down

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

Abstract

The lower link for the rear suspension of a bicycle is integral with the bottom bracket (3) and has two parts (1,2) welded to the bracket and reinforced. The link can carry the end of a suspension shock absorber (8) on a support (7), the other end being attached to the seat tube.

Description

-l--l-

L'invention concerne le domaine des suspension pour vélos tout-terrains, en particulier le système avec tube de selle suspendue par biellettes.  The invention relates to the field of suspension for mountain bikes, in particular the system with seat tube suspended by rods.

Ce système est normalement composé d'un tube de pédalier soudé au tube de selle, le tout étant suspendue au cadre par des biellettes. Cette jonc-  This system normally consists of a bottom bracket tube welded to the seat tube, all suspended from the frame by rods. This ring-

tion entre le tube de selle et le tube de pédalier constitue une zone devant soutenir de gros efforts; même fabriquée en acier, elle tend à se déformer  tion between the seat tube and the bottom bracket constitutes an area which must support great efforts; even made of steel, it tends to deform

sous les efforts soumis au pédalier et entraîne une perte de l'energie retransmise à la roue arrière. Elle peut se rompre après de nombreuses sol- licitations.  under the stresses subjected to the crankset and results in a loss of the energy retransmitted to the rear wheel. It can break after many requests.

Le système selon l'invention remédie à ce problème en unifiant le tube de pédalier à la biellette inférieure. LTe pivot unifiant normalement la biellette inférieure au tube de selle se trouve déplacé au dessus du tube de pédalier, dissociant ainsi le tube de selle du tube de pédalier Le tube de pédalier étant soudé à la biellette inférieure, l'effort ne se porte plus sur le tube de selle et l'ensemble peut ainsi résister à des efforts beaucoups plus important sans se déformer, améliorant ainsi le  The system according to the invention remedies this problem by uniting the bottom bracket tube with the lower link. The pivot that normally unifies the lower link with the seat tube is moved above the bottom bracket tube, thus dissociating the seat tube from the bottom bracket tube. The bottom bracket tube being welded to the bottom link, the effort is no longer focused the seat tube and the assembly can thus withstand much greater efforts without deforming, thereby improving the

rendement du vélo.bike performance.

Pour des commodités de fabrication, la biellette inférieure pourra être composée de deux flasques identiques raccordées ensemble par le tube de Déda-  For manufacturing convenience, the lower link can be made up of two identical flanges connected together by the Déda- tube.

lier et un renfort unifiant ces trois parties Cette biellette pourra aussi comporter une fixation d'amortisseur si l'on désir le faire fonctionner par pincement entre la biellette inférieure  link and a reinforcement uniting these three parts This link can also include a shock absorber attachment if it is desired to operate it by pinching between the lower link

et le tube de selle.and the seat tube.

Les dessins annexés illustrent l'invention  The accompanying drawings illustrate the invention

_ La figure 1 représente le système avant l'invention avec la zone de rupture hachurée.  _ Figure 1 shows the system before the invention with the hatched rupture zone.

La figure 2 représente le système selon l'invention.  Figure 2 shows the system according to the invention.

les figures 3et4 représentent la fabrication de la biellette inférieure  Figures 3 and 4 show the manufacture of the lower link

La figure 5 représente la biellette inférieure avec un amortisseur fonc-  FIG. 5 represents the lower link with a functional shock absorber

tionnant par pincement avec le tube de selle.  working by pinching with the seat tube.

En référence à ces dessins, la biellette inférieure se décompose en deux parties identiques (1) et (2) raccordées par le tube de pédalier (3) et  With reference to these drawings, the lower link is broken down into two identical parts (1) and (2) connected by the bottom bracket tube (3) and

un renfort (4). Elle se rattache au tube de selle (6) par le support de pivot (5).  a reinforcement (4). It is attached to the seat tube (6) by the pivot support (5).

Elle peut aussi être complétée d'un support (7) d'amortisseur (8) pour faire fonctionner l'amortisseur par pincement entre le tube de selle et la biellette inférieure. Le pivot (5) permet d'articuler le système et de conserver quatres points de pivots qui forment le parallèlogramme déformable indispensable au fonctionn  It can also be completed with a shock absorber support (7) for operating the shock absorber by pinching between the seat tube and the lower link. The pivot (5) makes it possible to articulate the system and to keep four pivot points which form the deformable parallelogram essential for the function

tionnement de ce système.operation of this system.

Cette biellette inférieure permet d'augmenter la rigidité de l'ensemble du système de suspension afin d'améliorer le rendement du vélo ainsi que sa résistance. -2-  This lower link increases the rigidity of the entire suspension system to improve the performance of the bike as well as its resistance. -2-

Claims (2)

REVENDICATIONS 1) Biellette inférieure pour système de suspension de tube de selle cara-  1) Lower link for car seat tube suspension system ctérisée par le fait qu'elle soit unifiée au tube de pédalier (3). Elle est constituée de deux parties (1) et (2) soudées avec le tube de pédalier (3)  characterized by the fact that it is unified with the bottom bracket tube (3). It consists of two parts (1) and (2) welded with the bottom bracket tube (3) et le renfort (4).and the reinforcement (4). 2) Biellette inférieure selon la revendication 1 caractérisée par le fait qu'elle peut recevoir un support (7) d'amortisseur (8), l'autre point de l'amortisseur se fixant au tube de selle (6)  2) Lower link according to claim 1 characterized in that it can receive a support (7) shock absorber (8), the other point of the shock absorber attaching to the seat tube (6)
FR9804349A 1998-04-06 1998-04-06 LOWER CONNECTING ROD WITH UNIFIED CRANKSET FOR SUSPENSION OF SEAT TUBE BY PARALLELOGRAM OF ALL-TERRAIN BIKE Expired - Fee Related FR2776979B3 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR9804349A FR2776979B3 (en) 1998-04-06 1998-04-06 LOWER CONNECTING ROD WITH UNIFIED CRANKSET FOR SUSPENSION OF SEAT TUBE BY PARALLELOGRAM OF ALL-TERRAIN BIKE

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9804349A FR2776979B3 (en) 1998-04-06 1998-04-06 LOWER CONNECTING ROD WITH UNIFIED CRANKSET FOR SUSPENSION OF SEAT TUBE BY PARALLELOGRAM OF ALL-TERRAIN BIKE

Publications (2)

Publication Number Publication Date
FR2776979A3 true FR2776979A3 (en) 1999-10-08
FR2776979B3 FR2776979B3 (en) 2000-02-04

Family

ID=9524981

Family Applications (1)

Application Number Title Priority Date Filing Date
FR9804349A Expired - Fee Related FR2776979B3 (en) 1998-04-06 1998-04-06 LOWER CONNECTING ROD WITH UNIFIED CRANKSET FOR SUSPENSION OF SEAT TUBE BY PARALLELOGRAM OF ALL-TERRAIN BIKE

Country Status (1)

Country Link
FR (1) FR2776979B3 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2808493A1 (en) * 2000-05-02 2001-11-09 Gerard Lamy All terrain bicycle has pedal crank movably mounted to frame to accommodate uneven terrain
WO2002016193A1 (en) * 2000-08-25 2002-02-28 Jeffrey Ernest Amos Bicycle frame
FR2832119A1 (en) * 2001-11-14 2003-05-16 Michel F Mottaz Bicycle frame comprises arch connecting handlebar to rear wheel, shaft connecting saddle to pedal gear, lever able to move in vertical plane and telescopic fork
ITCN20080020A1 (en) * 2008-12-29 2010-06-29 Vittore Giraudo MEANS OF SUSPENSION OF TRANSPORT, AT LEAST 2 WHEELS

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2808493A1 (en) * 2000-05-02 2001-11-09 Gerard Lamy All terrain bicycle has pedal crank movably mounted to frame to accommodate uneven terrain
WO2002016193A1 (en) * 2000-08-25 2002-02-28 Jeffrey Ernest Amos Bicycle frame
AU776714B2 (en) * 2000-08-25 2004-09-16 Jeffrey Ernest Amos Bicycle frame
US6837506B2 (en) 2000-08-25 2005-01-04 Jeffrey Ernest Amos Bicycle frame
FR2832119A1 (en) * 2001-11-14 2003-05-16 Michel F Mottaz Bicycle frame comprises arch connecting handlebar to rear wheel, shaft connecting saddle to pedal gear, lever able to move in vertical plane and telescopic fork
EP1312542A1 (en) * 2001-11-14 2003-05-21 Michel F. Mottaz Articulated suspension frame for bicycle
ITCN20080020A1 (en) * 2008-12-29 2010-06-29 Vittore Giraudo MEANS OF SUSPENSION OF TRANSPORT, AT LEAST 2 WHEELS

Also Published As

Publication number Publication date
FR2776979B3 (en) 2000-02-04

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