CH217381A - Bicycle crankset. - Google Patents

Bicycle crankset.

Info

Publication number
CH217381A
CH217381A CH217381DA CH217381A CH 217381 A CH217381 A CH 217381A CH 217381D A CH217381D A CH 217381DA CH 217381 A CH217381 A CH 217381A
Authority
CH
Switzerland
Prior art keywords
crankset
pinions
pedals
concentric
sub
Prior art date
Application number
Other languages
French (fr)
Inventor
Patrucco Alexandre
Original Assignee
Patrucco Alexandre
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 Patrucco Alexandre filed Critical Patrucco Alexandre
Publication of CH217381A publication Critical patent/CH217381A/en

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B62LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62MRIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES; POWERED PROPULSION OF SLEDGES OR SINGLE-TRACK CYCLES; TRANSMISSIONS SPECIALLY ADAPTED FOR SUCH VEHICLES
    • B62M3/00Construction of cranks operated by hand or foot
    • B62M3/08Pedals

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Transmission Devices (AREA)
  • Motorcycle And Bicycle Frame (AREA)
  • Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)

Description

  

  Pédalier de bicyclette.    L'objet de     l'invention    est , pédalier de  bicyclette.  



  Ce pédalier est     caractérisé    parle fait que  les pédales sont     rotativement    accouplées entre  elles de telle façon que dans     toutes    les posi  tions     qu'elles    sont     isusceptibles    d'occuper, et  indépendamment de la position des mani  velles, les plans de leurs     surfaces    d'appui  restent parallèles entre eux.  



       Ce        résultat    peut, par exemple, être obtenu  conformément à la. forme d'exécution repré  sentée au dessin et décrite ci-après, en ren  dant chaque pédale solidaire     .d'un    pignon, en  faisant passer sur chacun     desdifs,    pignons une  chaîne sans fin, -et en conduisant enfin cha  cune de ces chaînes sur un second pignon  concentrique à     l''axe    du pédalier, ces     -deux    se  conds     pignons    étant     rotativement    reliés entre  eux, mais     libres-de.    tourner par rapport aux  organes du pédalier.  



  La fi-. 1     représente    une vue latérale     @de     la forme     d'exécution    décrite, dont la     fig.    2  est une vue en plan avec coupe     partielle,       Le     pédalier        représenté    comporte, comme  tout pédalier, un arbre 1, auquel sont figées  les     manivelles    2, aux     extrémités    desquelles       sont        vissées    les pédales     â@,        cet    arbre suppor  tant la roue de chaîne     habituelle    4.  



  11 diffère des     autres    pédaliers par le fait  qu'à chaque pédale est adjoint un pignon  5, et par le fait que l'arbre 1 étant creux, il  est traversé par un second arbre 6, portant à       chacune    de ses     extrémités    un pignon 7.  



  Le tout est disposé de manière que, de  chaque côté du pédalier, se trouvent un pi  gnon 5 et un pignon 7 situés     dans    un même  plan, ce qui permet de les     relier    par une  chaîne sans     fin         & .     



  En ayant soin de     prévoir    tous les pignons  de même diamètre, ou     encore    les     pignons    de  pédales 5 d'un diamètre donné et     tee        pignons     7     -concentriques    à     l'axe    du pédalier, d'un  autre diamètre donné, -on voit que pour une  rotation d'un angle -donné d'une pédale, il  devra se produire obligatoirement une rota  tion d'un même angle de l'autre pédale, et  cela     indépendamment    de la position     des    ma-      nivelles     ?,    car l'arbre 6 tourne fou dans  l'arbre 1.  



  En ayant soin, lors du montage des  pignons 5, î et des chaînes 8, de caler ces  organes de manière à ce que les surfaces  d'appui des pédales occupent des plans paral  lèles entre eux, comme c'est le cas sur le des  sin, on voit que dans     toutes    les positions que  les pédales pourront occuper par     la,    suite, ce  parallélisme sera obligatoirement     conservé.     



       L'expérience    a montré que     cette    disposi  tion, qui oblige le cycliste sans peine à main  tenir ses pieds en bonne position en cours de       pédalage,        présente        l'avantage    d'augmenter le  rendement,     ce    qui se traduit aussi par une  diminution de la     fatigue.  



  Bicycle crankset. The object of the invention is a bicycle crankset.



  This crankset is characterized by the fact that the pedals are rotatably coupled together in such a way that in all the positions which they are capable of occupying, and regardless of the position of the cranks, the planes of their bearing surfaces remain. parallels between them.



       This result can, for example, be obtained in accordance with the. embodiment shown in the drawing and described below, by making each pedal integral with a pinion, by passing over each of the dives, pinions an endless chain, -and finally driving each of these chains on a second pinion concentric with the axis of the crankset, these -two second pinions being rotatably connected to each other, but free-of. turn in relation to the components of the crankset.



  The fi-. 1 shows a side view of the embodiment described, of which FIG. 2 is a plan view in partial section, The crankset shown comprises, like any crankset, a shaft 1, to which the cranks 2 are fixed, at the ends of which the pedals are screwed â @, this shaft supporting the usual chain wheel 4 .



  11 differs from other cranksets in that a pinion 5 is added to each pedal, and in that the shaft 1 is hollow, it is crossed by a second shaft 6, carrying at each of its ends a pinion 7.



  Everything is arranged so that, on each side of the crankset, there is a pin gnon 5 and a pinion 7 located in the same plane, which allows them to be connected by an endless chain &.



  While taking care to provide all the pinions of the same diameter, or the pinions of pedals 5 of a given diameter and tee pinions 7 -concentric to the axis of the crankset, of another given diameter, -we see that for a rotation of a given angle of one pedal, it must necessarily occur a rotation of the same angle of the other pedal, and this regardless of the position of the cranks?, because the shaft 6 turns crazy in tree 1.



  Taking care, when mounting the pinions 5, î and chains 8, to wedge these members so that the bearing surfaces of the pedals occupy planes parallel to each other, as is the case on the des sin, we see that in all the positions that the pedals can occupy thereafter, this parallelism will necessarily be preserved.



       Experience has shown that this arrangement, which makes it easy for the cyclist to keep his feet in the correct position during pedaling, has the advantage of increasing efficiency, which also results in a reduction in fatigue. .

 

Claims (1)

REVENDICATION Pédalier de bicyclette, caractérisé par le fait que les pédales sont rolativement accou plées entre elles de telle façon que dans toutes les positions qu'elles sont susceptibles d'occu per, et indépendamment de la position des manivelles, les plans de leurs surfaces d'ap pui ressent parallèles entre eux. SOUS-REVENDICATIONS: 1. CLAIM Bicycle crankset, characterized in that the pedals are rotatably coupled together in such a way that in all the positions which they are liable to occupy, and independently of the position of the cranks, the planes of their surfaces of 'support feels parallels between them. SUBCLAIMS: 1. Pédalier selon la revendication, carac- térisé en ce que chaque pédale est rendue soli daire d'un pignon, sur lequel passe une chaîne sans fin, conduite à son tour sur l'un de deux pignons concentrique à l'axe du pé dalier, Crankset according to claim, characterized in that each pedal is made integral with a pinion, over which passes an endless chain, driven in turn on one of two pinions concentric with the axis of the crankset, ces deux pignons étant reliés entre eux rotativement et indépendamment -les déplace- ments angulaires des manivelles du pédalier. 2. these two pinions being connected to each other rotatably and independently - the angular movements of the cranks of the crank. 2. Pédalier selon la revendication et la sous-revendication 1, caractérisé en oe que les pignons solidaires des pédales et -les pignons concentriques à. l'axe du pédalier ont. tous même diamètre. 3. Crankset according to claim and sub-claim 1, characterized in that the pinions integral with the pedals and the pinions concentric with. the crank axle have. all same diameter. 3. Pédalier selon la revendication et la sous-revendication 1, caractérisé en ce que les pignons solidaires des pédales ont. Crankset according to claim and sub-claim 1, characterized in that the pinions integral with the pedals have. même dia mètre, différant du diamètre des pignons con centriques à l'axe du pédalier, qui ont égale- ment même diamètre entre eux. 4. same diameter, differing from the diameter of the bevel gears centric to the crank axle, which also have the same diameter between them. 4. Pédalier selon la revendication et la sous-revendication 1, caractérisé en<B>ce</B> que lea deux pignons concentriques à l'axe du péda- lier sont situés sur un arbre traversant l'arbre du pédalier établi creux à cet effet. Crankset according to claim and sub-claim 1, characterized in <B> that </B> the two pinions concentric with the axis of the crankset are situated on a shaft passing through the crankshaft established hollow for this purpose. .
CH217381D 1940-12-09 1940-12-09 Bicycle crankset. CH217381A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH217381T 1940-12-09

Publications (1)

Publication Number Publication Date
CH217381A true CH217381A (en) 1941-10-15

Family

ID=4450078

Family Applications (1)

Application Number Title Priority Date Filing Date
CH217381D CH217381A (en) 1940-12-09 1940-12-09 Bicycle crankset.

Country Status (1)

Country Link
CH (1) CH217381A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2663898A1 (en) * 1990-06-29 1992-01-03 Laporte Jacques Device making it possible to slave the useful position of a bicycle pedal to the rotational movement of its crank
DE19904114A1 (en) * 1999-02-02 2000-08-03 Ekkehard Gorski Connecting element for bicycles and particularly bicycle pedals has first connecting element attached to shoe of rider and provided with rectilinear slot interacting with second connecting element
NL1025249C2 (en) * 2004-01-15 2005-07-18 Anthony Petrus Canisiu Coumans Torque Pedal.

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2663898A1 (en) * 1990-06-29 1992-01-03 Laporte Jacques Device making it possible to slave the useful position of a bicycle pedal to the rotational movement of its crank
DE19904114A1 (en) * 1999-02-02 2000-08-03 Ekkehard Gorski Connecting element for bicycles and particularly bicycle pedals has first connecting element attached to shoe of rider and provided with rectilinear slot interacting with second connecting element
NL1025249C2 (en) * 2004-01-15 2005-07-18 Anthony Petrus Canisiu Coumans Torque Pedal.
WO2005073067A1 (en) 2004-01-15 2005-08-11 Coumans Anthony Petrus Canisiu Torque pedal

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