CH128353A - Gear-changing device for bicycles and similar vehicles. - Google Patents
Gear-changing device for bicycles and similar vehicles.Info
- Publication number
- CH128353A CH128353A CH128353TA CH128353A CH 128353 A CH128353 A CH 128353A CH 128353T A CH128353T A CH 128353TA CH 128353 A CH128353 A CH 128353A
- Authority
- CH
- Switzerland
- Prior art keywords
- sleeve
- wheels
- wheel
- bicycles
- chain
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62M—RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES; POWERED PROPULSION OF SLEDGES OR SINGLE-TRACK CYCLES; TRANSMISSIONS SPECIALLY ADAPTED FOR SUCH VEHICLES
- B62M9/00—Transmissions characterised by use of an endless chain, belt, or the like
- B62M9/04—Transmissions characterised by use of an endless chain, belt, or the like of changeable ratio
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Description
Dispositif de changement de vitesse pour bieyclettes et vehieules semblables. Lobjet de 1'invention est un dispositif de changement de vitesse pour bicyclettes et ve- hicules semblables; il est caracterise, dune pari, par un axe de pädalier portant deux roues montees librement pour deux chaines, ainsi qu'un manchon d'embrayage qu'il en- traine en rotation, mais pouvant coulisser sur lui axialement; il est caracterise, d'.autre Part, par un second axe, auquel sont fixees la roue de chaine d'accouplement avec la roue arriere du vehicule et deux roues de chaines correspondant aux deux roues montees libre- ment; cesdits organes sont montes, de fagon reglable, ä 1'interieur id'un carter, auquel sont relies des tubes du cadre du vehicule; il est enfin earacterise par des moyens pour faire coulisser 1e manchon d'embrayage le long de Faxe du pedalier. Gear-changing device for bicycles and similar vehicles. The object of the invention is a gear change device for bicycles and similar vehicles; it is characterized, on a bet, by a crank axle carrying two wheels mounted freely for two chains, as well as a clutch sleeve which it drives in rotation, but which can slide on it axially; it is characterized, on the other hand, by a second axis, to which are fixed the chain wheel for coupling with the rear wheel of the vehicle and two chain wheels corresponding to the two freely mounted wheels; these said members are mounted, in an adjustable manner, inside a casing, to which are connected the tubes of the frame of the vehicle; it is finally characterized by means for sliding the first clutch sleeve along the bottom of the pedal assembly.
Un avantage de Finvention reside en ce que 1e dispositif peut presenter de petites di- mensions et en ce qu'il peut etre renferme Jans un Petit carter relie aux tubes du cadre du vehicule, par exemple le joint des tubes formant cedit cadre, saus pour cela nuire ä 1'aspect du vehicule. An advantage of the invention resides in that the device can have small dimensions and in that it can be enclosed in a small casing connected to the tubes of the frame of the vehicle, for example the joint of the tubes forming said frame, except for this will adversely affect the appearance of the vehicle.
0n peut enfin prevoir deux paliers ä bil- les excentriques pour Faxe posterieur du car- ter, afin de pouvoir tendre ä volonte les deux chaines. Finally, two eccentric ball bearings can be provided for the rear end of the casing, in order to be able to tension the two chains as desired.
Le dessin annexe represente une forme d'execution de 1'objet de 1'invention donnee ä, eitre d'exemple. The appended drawing represents a form of execution of the object of the invention given by way of example.
La fig. 1 est une vue dune bicyclette comportant 1e dispositif; La fig. 2 est, ä plus grande echelle, la vue du carter sur lequel sont soudes les tubes formant 1e cadre de la bicyclette; La fig. 3 est une coupe verticale du dis- positif; Les fig. 4, 5 et 6 montrent des @details; La fig. 7 est une vue de face dune Par tie du dispositif, et La fig. 8 est un plan de ces Parties; La fig. 9 est une coupe suivant C-D de fig. 8; La fig. 10 est une coupe suivant E de fig. 8; La fig. 11 est une coupe suivant G-H de fig. 8, pour la Premiere Position d'em- brayage, et La fig. 12 est la meme coupe, pour se- conde Position. Dans ces figures, a est un carter auquel sont soudes los tubes formant 1e cadre de la bicyclette. Dans ce carter sont montes ideux axes b et c, dont 1e Premier Porte los leviers du pedalier et est pourvu de deux roues de chaIne d et e qui tournent librement sur Faxe b; elles sont ecartees Fune de 1'autre. Entre ces deux roues <I>d</I> et e sur laxe<I>b,</I> qui presente des rainures f, coulisse un manchon g pourvu dune Borge annulaire h. fig. 1 is a view of a bicycle incorporating the device; fig. 2 is, on a larger scale, the view of the casing on which the tubes forming the frame of the bicycle are welded; fig. 3 is a vertical section of the device; Figs. 4, 5 and 6 show @details; fig. 7 is a front view of a Part of the device, and FIG. 8 is a plan of these Parts; fig. 9 is a section along C-D of FIG. 8; fig. 10 is a section along E of FIG. 8; fig. 11 is a section along G-H of FIG. 8, for the First Clutch Position, and fig. 12 is the same cut, for second Position. In these figures, a is a casing to which the tubes forming the first frame of the bicycle are welded. In this casing are mounted two axles b and c, the first of which bears the levers of the pedal assembly and is provided with two chain wheels d and e which turn freely on axle b; they are separated from each other. Between these two wheels <I>d</I> and e on the axis<I>b,</I> which has grooves f, slides a sleeve g provided with an annular Borge h.
Ce manchon Porte des chevilles en saillie <I>i, i,</I> qui peuvent entrer Jans des trous <I>k</I> me- nag6s dans los roues d et e. En deplagant ce manchon d'un cöte, an 1e rend solidaire de la roue e et en 1e deplagant du cöte oppose, an 1e rend solidaire de la roue d; mais comme il coulisse sur Faxe b tout en participant ä son mouvement de rotation, il assure ä volontE= 1'embrayage de celui-ei et de l'une ou 1'autre des roues. This sleeve carries projecting pins <I>i, i,</I> which can enter through the holes <I>k</I> made in the wheels d and e. By moving this sleeve on one side, year 1e makes it integral with wheel e and by moving it on the opposite side, year 1e makes it integral with wheel d; but as it slides on Faxe b while participating in its rotational movement, it ensures the clutching of the latter and of one or the other of the wheels at will.
Au lieu des chevilles, 1e manchon pour- rait etre pourvu de tont autre moyen d'ac- couplement avec los roues. Instead of the pins, the sleeve could be provided with any other means of coupling with the wheels.
Sur faxe c (fig. 10), qui est Porte par 1e carter <I>a</I> au moyen de paliers ä billes <I>1,</I> m, est fixe un manchon n pourvu de deux roues de chaIne o, p qui en sont solidaires, et qui cor- respondent aux deux roues d, e ide laxe b. On axle c (fig. 10), which is carried by the casing <I>a</I> by means of ball bearings <I>1,</I> m, is fixed a sleeve n provided with two wheels of chain o, p which are integral with it, and which correspond to the two wheels d, e ide the axis b.
La roue o est reliee ä la roue d par une chaine q (fig. 9) et la roue <I>p</I> est reliee ä la roue e par une chaine r (fig. 7). Iiaxe c Porte aussi, en dehors du carter a, une roue de chaine s (fig. 3, 7, 8 et 9) qui, au moyen dune chaine <I>t</I> est reliee au pignon libre <I>u</I> (fig. 1) du moyeu arriere de la bicyclette. Wheel o is linked to wheel d by a chain q (fig. 9) and wheel <I>p</I> is linked to wheel e by a chain r (fig. 7). Iiaxe c also carries, outside the casing a, a chain wheel s (fig. 3, 7, 8 and 9) which, by means of a chain <I>t</I> is connected to the free pinion <I>u </I> (fig. 1) from the rear hub of the bicycle.
Laxe b sort des deux cötes du carter et Porte los leviers de pedalier v. Pin b comes out of both sides of the crankcase and carries the pedal levers v.
Dans la Borge h du manchon g (fig. 3) penetre un demi-cercle elastique x apparte- nant ä un support w fixe ä une tige y; cette tige peut tourner ä sa Partie inferieure dans 1e carter, en z, sort de celui-ei ä sa Partie superieure en 2 et se prolonge 1e long du tobe :3 du cadre de la bicyclette; elle aboutit pres de la fourche auterieure de la bicyclette oü elle est maintenue par un etrier 4; elle Porte un levier 5 pourvu d'un ergot 6 destine ä penetrer dans des trous 7, 7 dune Plaque 8 portee par la Partie anterieure 9 de 1'etrier 4. Cette tige y peut donc tourner d'un cer- ta-in angle et provoquer 1e deplacement de 1'anneau elastique x qui entraine 1e manchon g; par ses chevilles i, celui-ei assure 1'em- brayage soit avec la petite roue e, soit avec la Brande roue d. Into the edge h of the sleeve g (fig. 3) there penetrates an elastic semi-circle x belonging to a support w fixed to a rod y; this rod can rotate at its lower part in the casing, at z, comes out of the latter at its upper part at 2 and extends along the tube: 3 of the bicycle frame; it ends near the rear fork of the bicycle where it is held by a stirrup 4; it carries a lever 5 provided with a lug 6 intended to enter holes 7, 7 of a plate 8 carried by the front part 9 of the caliper 4. This rod can therefore rotate there by a certain angle and causing the displacement of the elastic ring x which causes the first sleeve g; by its pins i, the latter ensures the clutch either with the small wheel e, or with the brande wheel d.
Le fonetionnement de 1'embrayage pour- rait cependant eire obtenu par tout autre moyen convenable, meme connu. The operation of the clutch could however be obtained by any other suitable means, even known.
Dans 1e Premier cas, c'est-ä-dire dans ce- lui de 1'embrayage sur la roue e (fig. 8), 1e mouvement de Faxe b est transmis au moyen ,de la chaine <I>r</I> ä la roue dentee <I>p</I> et par<B>Ih</B> ä Faxe c. 0n a de cette fagon 1e rapport de multiplication determine par los roues e et s, tandis quo la roue d tourne librement sur Faxe b. In the first case, that is to say in that of the clutch on the wheel e (fig. 8), the movement of Faxe b is transmitted by means of the chain <I>r</I > to the cogwheel <I>p</I> and by <B>Ih</B> to Faxe c. In this way we have the multiplication ratio determined by the wheels e and s, while the wheel d rotates freely on the wheel b.
Si, au contraire, le manchon g est em- bray6 sur la roue d, c'est la roue e qui tourne librement et la roue dentee d transmet, au moyen de la chaine q, 1e mouvement ä la roue o et par 1ä ä faxe c; an aura dans ce cas 1e rapport de multiplication determine par los roues d et s. Los rapports des quatre roues @dentees <I>d, e, o, p</I> peuvent etre choisis ä volonte. If, on the other hand, the sleeve g is clutched on the wheel d, it is the wheel e which rotates freely and the toothed wheel d transmits, by means of the chain q, the movement to the wheel o and by 1ä to fax c; an will have in this case the multiplication ratio determined by the wheels d and s. The ratios of the four toothed wheels <I>d, e, o, p</I> can be chosen as desired.
Il est evident quo 1e changement de vi- tesse peut etre obtenu aisement en manceu- vrant le levier 5 ou tel autre organe produi- sant 1e deplacement dans un sens ou dans Fautre du manchon g. It is obvious that the change of speed can easily be obtained by operating the lever 5 or some other member producing the displacement in one direction or in the other of the sleeve g.
Laxe posterieur c est Porte par los pa- liers ä billes 1, m. Ces paliers sont montes de fagon excentrique dans 1e carter a, de fagon qu'on puisse deplacer Faxe c au moyen dune vis ou de tout autre idispositif de Pression, en vue du reglage de la tension des deux chaines <I>r,</I> q. The rear axis c is carried by the ball bearings 1, m. These bearings are eccentrically mounted in the crankcase a, so that Faxe c can be moved by means of a screw or any other pressure device, in order to adjust the tension of the two chains <I>r,</ I> q.
Il est entendu quo ladite invention peut eire appliquee non seulement aux bicyclettes, mais aussi aux motoeyclettes, tricycles pour colis, etc. It is understood that said invention can be applied not only to bicycles, but also to motorcycles, parcel tricycles, etc.
Claims (2)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH128353T CH128353A (en) | 1927-07-07 | 1927-07-07 | Gear-changing device for bicycles and similar vehicles. |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH128353T CH128353A (en) | 1927-07-07 | 1927-07-07 | Gear-changing device for bicycles and similar vehicles. |
Publications (1)
Publication Number | Publication Date |
---|---|
CH128353A true CH128353A (en) | 1928-10-16 |
Family
ID=4386815
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH128353T CH128353A (en) | 1927-07-07 | 1927-07-07 | Gear-changing device for bicycles and similar vehicles. |
Country Status (1)
Country | Link |
---|---|
CH (1) | CH128353A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL1015777C2 (en) * | 2000-07-21 | 2002-01-22 | Der Linde Freddy Van | Gear device for a bicycle, suitable for installation near a bottom bracket. |
WO2006087750A1 (en) * | 2005-02-16 | 2006-08-24 | Daniele Cappellini | Transmission case for bicycles |
EP1630092A3 (en) * | 2004-08-31 | 2007-11-21 | Sram Corporation | Transmission |
-
1927
- 1927-07-07 CH CH128353T patent/CH128353A/en unknown
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL1015777C2 (en) * | 2000-07-21 | 2002-01-22 | Der Linde Freddy Van | Gear device for a bicycle, suitable for installation near a bottom bracket. |
US7326137B2 (en) | 2000-07-21 | 2008-02-05 | Van Der Linde Petrus Maria | Gear for a bicycle |
EP1630092A3 (en) * | 2004-08-31 | 2007-11-21 | Sram Corporation | Transmission |
US7597638B2 (en) | 2004-08-31 | 2009-10-06 | Sram, Llc | Transmission |
WO2006087750A1 (en) * | 2005-02-16 | 2006-08-24 | Daniele Cappellini | Transmission case for bicycles |
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