FR2588236A3 - Freewheel device for bicycles or the like - Google Patents
Freewheel device for bicycles or the like Download PDFInfo
- Publication number
- FR2588236A3 FR2588236A3 FR8613870A FR8613870A FR2588236A3 FR 2588236 A3 FR2588236 A3 FR 2588236A3 FR 8613870 A FR8613870 A FR 8613870A FR 8613870 A FR8613870 A FR 8613870A FR 2588236 A3 FR2588236 A3 FR 2588236A3
- Authority
- FR
- France
- Prior art keywords
- bicycles
- freewheel device
- hub
- threaded
- bush
- 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
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
- B62M9/06—Transmissions characterised by use of an endless chain, belt, or the like of changeable ratio using a single chain, belt, or the like
- B62M9/10—Transmissions characterised by use of an endless chain, belt, or the like of changeable ratio using a single chain, belt, or the like involving different-sized wheels, e.g. rear sprocket chain wheels selectively engaged by the chain, belt, or the like
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D41/00—Freewheels or freewheel clutches
- F16D41/24—Freewheels or freewheel clutches specially adapted for cycles
- F16D41/30—Freewheels or freewheel clutches specially adapted for cycles with hinged pawl co-operating with teeth, cogs, or the like
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Gears, Cams (AREA)
Abstract
Description
La présente invention concerne un dispositif de roue libre pour bicyclettes ou similaires. The present invention relates to a freewheel device for bicycles or the like.
Selon la technique traditionnelle, il est associé, au dispositif de roue libre, une serie de pignons de différents diamètres et destinés a coopérer sélectivement avec la chaîne de transmission, actionnée par les pédales de la bicyclette, en fonction du rapport de transmission choisi par le cycliste. According to the traditional technique, there is associated, with the freewheel device, a series of pinions of different diameters and intended to cooperate selectively with the transmission chain, actuated by the pedals of the bicycle, according to the transmission ratio chosen by the cyclist.
Traditionnellement, ces pignons sont montés par accouplement fileté sur la douille extérieure du dispositif de roue libre, dont la douille intérieure est rendue solidaire du moyeu de la bicyclette par accouplement fileté. Traditionally, these pinions are mounted by threaded coupling on the outer sleeve of the freewheel device, the inner sleeve of which is made integral with the hub of the bicycle by threaded coupling.
Selon une autre technique connue, la douille extérieure est munie, non pas d'un filetage pour son accouplement avec les pignons, mais de cannelures longitudinales; toutefois, toujours selon cette technique connue, la douille intérieure n'est pas adaptable au moyeu normalisé traditionnel avec assemblage fileté, mais elle nécessite un moyeu particulier, d'usage peu commun. According to another known technique, the outer sleeve is provided, not with a thread for its coupling with the pinions, but with longitudinal grooves; however, still according to this known technique, the inner sleeve is not adaptable to the traditional standardized hub with threaded assembly, but it requires a particular hub, of unusual use.
Le but de l'invention est de remédier à cet inconvénient. The object of the invention is to remedy this drawback.
Pour atteindre ce but, il est réalisé un dispositif de roue libre pour bicyclettes, dont la caractéristique principale réside dans le fait qu'il comprend une douille extérieure munie de cannelures axiales pour le montage des pignons du changement de vitesse, et une douille intérieure comportant une partie d'extrémité filetée, directement montable sur le moyeu normalisé traditionnel de la roue de la bicyclette. To achieve this goal, a freewheel device for bicycles is produced, the main characteristic of which is that it comprises an outer bush provided with axial splines for mounting the gear shift gears, and an inner bush comprising a threaded end part, directly mountable on the traditional standardized hub of the bicycle wheel.
L'invention est ci-après décrite en référence aux dessins annexés. The invention is described below with reference to the accompanying drawings.
La fig. I est une vue en coupe axiale du dispositif selon l'invention. Fig. I is an axial section view of the device according to the invention.
La . 2 est une vue en coupe axiale d'un composant du dispositif de la fig. 1. The . 2 is an axial section view of a component of the device of FIG. 1.
La fig. 3 est une vue frontale du composant de la fig. 2. Fig. 3 is a front view of the component of FIG. 2.
Sur les dessins, le numéro de référence 1 désigne la douille métallique intérieure du dispositif de roue libre, comportant une partie d'extrémité à filetage intérieur 2, pour le montage de l'ensemble du dispositif sur le moyeu de la roue de la bicyclette. In the drawings, the reference number 1 designates the inner metal sleeve of the freewheel device, comprising an end portion with an internal thread 2, for mounting the entire device on the hub of the bicycle wheel.
La douille 1 est en liaison unidirectionnelle avec une couronne de dents 3-3a prévue à l'interieur d'une douille extérieure 4. The socket 1 is in unidirectional connection with a crown of teeth 3-3a provided inside an external socket 4.
Le numéro de référence 5 désigne une bague d'écartement qui est pressée par un collier 6, muni à son tour de sièges 7, 8 destinés à recevoir des clefs de manoeuvre. The reference number 5 designates a spacer ring which is pressed by a collar 6, in turn provided with seats 7, 8 intended to receive operating keys.
~Entrn les deux douilles 1, 4 sont montées des billes de guidage et de support des pièces, désignées respectivement par 9 et 10 et maintenues à distance mutuelle en direction axiale. ~ Entrn the two sockets 1, 4 are mounted guide balls and parts support, designated respectively by 9 and 10 and maintained at mutual distance in the axial direction.
Les billes 10 roulent sur une piste en arc de cercle lOa du collier 6.The balls 10 roll on a track in an arc of a circle 10a of the collar 6.
La douille 4 présente des cannelures extérieures axiales 11, pour son accouplement avec des dents interieures correspondantes 12 de chaque pignon 13 du changement de vitesse. The sleeve 4 has axial external grooves 11, for its coupling with corresponding internal teeth 12 of each pinion 13 of the gear change.
Ces pignons sont maintenus à distance les uns des autres en direction axiale par des bagues en alliage léger 14. Le pignon de plus grand diamètre 13a bute contre un épaulement 15 forme directement dans la douille extérieure, tandis que le plus petit pignon 13b est bloqué sur la douille 4 au moyen d'un assemblage fileté 16. These pinions are kept at a distance from each other in the axial direction by light alloy rings 14. The pinion of larger diameter 13a abuts against a shoulder 15 forms directly in the outer sleeve, while the smaller pinion 13b is blocked on the socket 4 by means of a threaded assembly 16.
Grâce à la disposition décrite ci-dessus, le montage des pignons 13 est facile et rapide et il permet en particulier d'inverser la position de montage de chaque pignon pour compenser l'usure des dents 17. Thanks to the arrangement described above, the mounting of the pinions 13 is easy and quick and it makes it possible in particular to reverse the mounting position of each pinion to compensate for the wear of the teeth 17.
L'ensemble du groupe porteur des pignons peut être monté rapidement sur un moyeu muni du filetage traditionnel de type normalisé. The entire pinion carrier group can be quickly mounted on a hub fitted with the traditional thread of standard type.
Claims (1)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IT5390785U IT206448Z2 (en) | 1985-10-07 | 1985-10-07 | FREE WHEEL FOR UNIVERSAL MOUNTING SPEED |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2588236A3 true FR2588236A3 (en) | 1987-04-10 |
| FR2588236B3 FR2588236B3 (en) | 1987-10-30 |
Family
ID=11285912
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR8613870A Expired FR2588236B3 (en) | 1985-10-07 | 1986-10-06 | FREE WHEEL DEVICE FOR BICYCLES OR THE LIKE |
Country Status (2)
| Country | Link |
|---|---|
| FR (1) | FR2588236B3 (en) |
| IT (1) | IT206448Z2 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0834450A1 (en) * | 1996-10-02 | 1998-04-08 | Shimano (Singapore) Private, Limited | Multiple sprocket assembly adapted to secure a sprocket to an outer race |
| EP1439118A2 (en) * | 2003-01-17 | 2004-07-21 | Shimano Inc. | A bicycle sprocket having lateral protrusions for use in a multiple sprocket assembly |
| US11351815B2 (en) | 2017-08-21 | 2022-06-07 | The Hive Global, Inc. | Bicycle cassette with clamping connection |
| US11485449B2 (en) | 2015-09-01 | 2022-11-01 | The Hive Global, Inc. | Bicycle cassette with locking connection |
| US11932351B2 (en) | 2020-07-17 | 2024-03-19 | The Hive Global, Inc. | Conical bicycle cassette sprocket structure |
-
1985
- 1985-10-07 IT IT5390785U patent/IT206448Z2/en active
-
1986
- 1986-10-06 FR FR8613870A patent/FR2588236B3/en not_active Expired
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0834450A1 (en) * | 1996-10-02 | 1998-04-08 | Shimano (Singapore) Private, Limited | Multiple sprocket assembly adapted to secure a sprocket to an outer race |
| EP1439118A2 (en) * | 2003-01-17 | 2004-07-21 | Shimano Inc. | A bicycle sprocket having lateral protrusions for use in a multiple sprocket assembly |
| EP1439118A3 (en) * | 2003-01-17 | 2005-04-06 | Shimano Inc. | A bicycle sprocket having lateral protrusions for use in a multiple sprocket assembly |
| US7044876B2 (en) | 2003-01-17 | 2006-05-16 | Shimano, Inc. | Bicycle sprocket having lateral protrusions for use in a multiple sprocket assembly |
| US11485449B2 (en) | 2015-09-01 | 2022-11-01 | The Hive Global, Inc. | Bicycle cassette with locking connection |
| US11351815B2 (en) | 2017-08-21 | 2022-06-07 | The Hive Global, Inc. | Bicycle cassette with clamping connection |
| US11932351B2 (en) | 2020-07-17 | 2024-03-19 | The Hive Global, Inc. | Conical bicycle cassette sprocket structure |
Also Published As
| Publication number | Publication date |
|---|---|
| IT206448Z2 (en) | 1987-08-10 |
| FR2588236B3 (en) | 1987-10-30 |
| IT8553907V0 (en) | 1985-10-07 |
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