FR2838795A1

FR2838795A1 - Lubricating system for cycle brake cable comprises tube whose ends have lips which clip on to sleeves around cable, radial bore allowing lubricant to be applied to it

Info

Publication number: FR2838795A1
Application number: FR0204971A
Authority: FR
Inventors: Didier Chamel
Original assignee: Individual
Current assignee: Individual
Priority date: 2002-04-22
Filing date: 2002-04-22
Publication date: 2003-10-24

Abstract

The lubricating system for a cycle brake cable (4) comprises a tube (14) whose ends have lips (201, 202) which clip on to sleeves (61, 62) around the cable. A radial bore (22) allows lubricant to be applied to the cable.

Description

La presente invention concerne un dispositif de lubrification d'un cableThe present invention relates to a cable lubrication device

de commande pour cycle, un cable de commande pourvu d' au moins un tel dispositif, ainsi control cable, a control cable provided with at least one such device, as well

qu'un cycle pourvu d'au moins un tel cable de commande. that a cycle provided with at least one such control cable.

On salt que de tels cables de commande, qui vent notamment des cables de frein ou de derailleur, comportent une ame formee d'un ou plusieurs fils ou rubans d'acier, qui est entouree d'une gaine peripherique. Cette ame et cette gaine definissent un espace intercalaire annulaire, qu'il est necessaire de lubrifier en permanence, afin d' assurer un fonctionnement satisfaisant de ['ensemble du It is known that such control cables, which in particular wind brake or derailleur cables, comprise a core formed by one or more steel wires or bands, which is surrounded by a peripheral sheath. This core and this sheath define an annular intermediate space, which it is necessary to lubricate permanently, in order to ensure satisfactory operation of the whole of the

cable de commande.control cable.

On connalt, par FR-A-2 614 659, un capuchon destine a etre rapporte a l'extremite du cable de commande. Un tel capuchon fait appel a un element d'etancheite, destine a empecher la boue de penetrer dans le volume interieur de la gaine. Des elements de retenue impregnes d' agents de We know, by FR-A-2 614 659, a cap intended to be attached to the end of the control cable. Such a cap uses a sealing element, intended to prevent the mud from penetrating into the interior volume of the sheath. Restraint elements impregnated with

lubrification, tels de la graisse, vent egalement utilises. lubrication, such as grease, is also used.

On connalt egalement, par EP-A-0 816 694, un capuchon d'extremite pour cables de bicyclette. Dans cet agencement, le cable coulisse a l'interieur de ce capuchon, alors qutil est prevu un boltier definissant une chambre creuse, EP-A-0 816 694 also discloses an end cap for bicycle cables. In this arrangement, the cable slides inside this cap, while a bolt bowl is provided defining a hollow chamber,

remplie d'un materiau lubrifiant.filled with a lubricating material.

Ces differents modes de realisation impliquent These different embodiments imply

cependant certains inconvenients.however, some drawbacks.

En effet, ils vent destines a etre necessairement places a l'extremite de la gaine du cable de commande. Par ailleurs, ils ne present pas facilement a des ajouts periodiques de lubrifiant, de sorte que ce dernier a tendance a s'evaporer ou a secher, ce qui est peu satisfaisant pour l'integrite mecanique de ltensemble du In fact, they are intended to be necessarily placed at the end of the sheath of the control cable. Furthermore, they do not readily present to periodic additions of lubricant, so that the latter tends to evaporate or dry, which is unsatisfactory for the mechanical integrity of the whole of the

cable de commande.control cable.

Ceci etant precise, l' invention se propose de realiser un dispositif de lubrification pour cable de commande, permettant de remedier aux differents inconvenients evoques ci-dessus. A cet effet, elle a pour objet un dispositif de lubrification pour cable de commande de cycle, ce cable comportant une ame active ainsi qu'une gaine peripherique, caracterise en ce que ce dispositif comprend un corps pourvu de moyens de fixation sur ladite gaine, ainsi que des moyens de passage d'un lubrifiant, apses a diriger This being precise, the invention proposes to produce a lubrication device for a control cable, making it possible to remedy the various drawbacks mentioned above. To this end, it relates to a lubrication device for cycle control cable, this cable comprising an active core as well as a peripheral sheath, characterized in that this device comprises a body provided with fixing means on said sheath, as well as means for passing a lubricant, quick to direct

ledit lubrifiant vers ladite ame.said lubricant to said core.

Selon d'autres caracteristiques de ['invention: - les moyens de fixation sur la gaine du cable comprennent des moyens de fixation par emboltement contre les extremites de deux troncons de gaine, separes par une decoupe locale menagee dans ladite gaine; - le corps du dispositif de lubrification est creuse d'un orifice longitudinal s'etendant autour de l'ame, au sein de ladite decoupe locale; - les moyens de fixation par emboltement comprennent deux levres dont est pourvu le corps, ces levres etant prevues a deux extremites opposees du corps et etant apses a prendre appui contre un troncon de gaine correspondent; - les moyens de fixation comprennent des moyens de fixation par encliquetage elastique autour de ladite gaine; - l e s moyens de pas s age comprennent au mo ins un canal radial traversant menage dans le corps du dispositif de lubrification; le ou chaque canal radial debouche au voisinage de ['orifice longitudinal menage dans le corps; - le canal est apte a etre mis en communication avec une ouverture, menagee dans la gaine; According to other characteristics of the invention: - the means of fixing to the cable sheath comprise means of fastening by embossing against the ends of two sections of sheath, separated by a local cut in said sheath; - The body of the lubrication device is hollow with a longitudinal orifice extending around the core, within said local cut; - The embedding fixing means comprise two lips which are provided with the body, these lips being provided at two opposite ends of the body and being able to bear against a corresponding sheath section; - The fixing means comprise fixing means by elastic snap around said sheath; - The passage means comprise at least one radial channel passing through the body of the lubrication device; the or each radial channel opens in the vicinity of the longitudinal opening in the body; - The channel is adapted to be put in communication with an opening, formed in the sheath;

2838795 12838795 1

- le dispositif est pourvu de moyens permettant lobturation amovible des moyens de passage de lubrifiant, notamment un bouchon; - le dispositif est pourvu de moyens de recuperation des dechets, ainsi que de moyens d' evacuation - The device is provided with means allowing the removable closure of the lubricant passage means, in particular a plug; - the device is provided with means for recovering waste, as well as means for evacuation

des dechets ainsi recuperes.waste thus recovered.

L'invention a egalement pour objet un cable de commande, en particulier un cable de frein ou de derailleur pour cycle, en particulier pour bicyclette ou motocycle, caracterise en ce qutil comprend au moins un dispositif de The subject of the invention is also a control cable, in particular a brake or derailleur cable for a cycle, in particular for a bicycle or motorcycle, characterized in that it comprises at least one device for

lubrification tel que defini ci-dessus. lubrication as defined above.

L'invention a enfin pour objet un cycle, en particulier une bicyclette ou un motocycle, comprenant au The invention finally relates to a cycle, in particular a bicycle or a motorcycle, comprising at least

moins un cable de commande tel que defini ci-dessus. minus a control cable as defined above.

L'invention sera mieux comprise, et des details en The invention will be better understood, and details in

relevant apparaltront, grace a la description qui va en relevant will appear, thanks to the description which goes

etre faite de formes non limitatives de realisation, en relation avec les figures des planches annexces, dans lesquelles: - la figure 1 est une vue en coupe longitudinale, illustrant un dispositif de lubrification pour cable de commande conforme a un premier mode de realisation de l' invention; - les figures 2 a 4 vent des vues en coupe longitudinale, analogues a la figure 1, illustrant trots variantes de realisation de l' invention; - la figure 5 est une vue en coupe longitudinale, analogue aux figures precedentes, illustrant une derriere variante de realisation de l' invention; et - la figure 6 est une vue en coupe, illustrant le be made of nonlimiting embodiments, in relation to the figures of the annexed boards, in which: - Figure 1 is a longitudinal section view, illustrating a lubrication device for control cable conforming to a first embodiment of the invention; - Figures 2 to 4 are views in longitudinal section, similar to Figure 1, illustrating three alternative embodiments of the invention; - Figure 5 is a longitudinal sectional view, similar to the preceding figures, illustrating a rear embodiment of the invention; and - Figure 6 is a sectional view, illustrating the

dispositif de lubrification represente a la figure 5. lubrication device shown in Figure 5.

La figure 1 represente un cable de commande pour cycle, designe dans son ensemble par la reference 2, qui est par exemple un cable de frein ou de derailleur. De facon classique, ce cable comprend une ame active 4, par Figure 1 shows a cycle control cable, generally designated by the reference 2, which is for example a brake or derailleur cable. Conventionally, this cable comprises an active core 4, for

exemple formee d'un ou plusieurs fils ou rubans d'acier. example formed by one or more steel wires or ribbons.

Le cable comporte egalement une gaine peripherique 6 definissant, avec l'ame 4, un espace intercalaire de graissage 8, de forme annulaire. La gaine 6 fait ['objet, sur cette figure 1, d'une decoupe locale 10 qui contribue a definir ainsi deux troncons de gaine 61 et 62, possedant The cable also includes a peripheral sheath 6 defining, with the core 4, an intermediate lubrication space 8, of annular shape. The sheath 6 is the object, in this FIG. 1, of a local cutout 10 which contributes to thus define two sections of sheath 61 and 62, having

deux extremites en regard 6'1 et 6' 2. two opposite ends 6'1 and 6 '2.

Le cable de commande 2 est egalement pourvu d'un dispositif de lubrification, affecte de la reference 12. Ce dernier est par exemple moule a partir de materiaux presentant une certaine flexibilite, tels une resine The control cable 2 is also provided with a lubrication device, assigned the reference 12. The latter is for example molded from materials exhibiting a certain flexibility, such as a resin

synthetique ou un caoutchouc, ou bien usine. synthetic or rubber, or factory.

Ce dispositif 12 comporte un corps allonge 14, dont les parois exterieures vent bombees. Ce corps est creuse d'un orifice longitudinal 16, dans lequel est placee l'ame 4 du cable. De la sorte, le corps 14 s' etend principalement This device 12 comprises an elongated body 14, the outer walls of which are curved. This body is hollow with a longitudinal orifice 16, in which the core 4 of the cable is placed. In this way, the body 14 mainly extends

dans la decoupe 10 menagee dans la gaine 6. in the cutout 10 in the sheath 6.

Aux deux extremites longitudinales du corps 14 vent prevues des chambres 181 et 182, permettant la reception d'une extremite correspondante 6' l ou 6' 2 de la gaine. A cet effet, chaque chambre 181 ou 182 est munie d'une levre At the two longitudinal ends of the body 14 provided for chambers 181 and 182, allowing the reception of a corresponding end 6 'l or 6' 2 of the sheath. For this purpose, each chamber 181 or 182 is provided with a lip

peripherique 201 ou 202.peripheral 201 or 202.

Chaque levre, qui fait saillie radialement vers 1' interieur, assure ainsi ltetancheite par rapport a un troncon de gaine correspondent 6'1 ou 6' 2. Le corps 14 est par ailleurs perce d'un canal radial' 22, mettant ainsi en Each lip, which projects radially inwards, thus ensures leaktightness with respect to a section of sheath corresponding to 6′1 or 6 ′ 2. The body 14 is moreover pierced with a radial channel ′ 22, thus putting in place

communication l'air ambient avec ['orifice longitudinal 16. communication of ambient air with the longitudinal orifice 16.

I1 est enfin prevu un bouchon 24, relic au corps 14 par un lien 26. Ce bouchon 24 possede une extremite inferieure arrondie 28, cooperant avec une paroi 30, de I1 is finally provided with a plug 24, connected to the body 14 by a link 26. This plug 24 has a rounded lower end 28, cooperating with a wall 30, of

profil conjugue, bordant partiellement le canal radial 22. profile combines, partially bordering the radial channel 22.

Si lton desire lubrifier le cable 2, il s' agit de deverser un liquide approprie par le canal 22. Ce liquide migre alors le long de ['orifice 16, puis de l'espace intercalaire 8, de sorte qu'il se depose autour de If it is desired to lubricate the cable 2, it is a question of pouring an appropriate liquid through the channel 22. This liquid then migrates along the orifice 16, then in the intermediate space 8, so that it is deposited around of

['ensemble de l'ame 4 du cable.['assembly of the core 4 of the cable.

Puis, on ferme le canal 22, par cooperation de l'extremite inferieure 28 du bouchon 24 avec la paroi 30, bordant le canal precise. Si l'on desire aj outer a nouveau du lubrifiant, on ote le bouchon de facon a acceder a ce Then, the channel 22 is closed, by cooperation of the lower end 28 of the plug 24 with the wall 30, bordering the precise channel. If you want to add lubricant again, you remove the cap so as to access this

canal 22.channel 22.

La figure 2 illustre une premiere variante de realisation de l' invention. Sur cette figure, les elements mecaniques analogues a ceux de la figure 1 vent affectes FIG. 2 illustrates a first variant embodiment of the invention. In this figure, the mechanical elements similar to those of figure 1 are affected

des memes numeros de reference, augmentes de 50. same reference numbers, increased by 50.

Le dispositif de lubrification 62, represente sur cette figure 2, est pourvu d'un reservoir 82, prevu dans le prolongement du canal 72, a ['oppose de celui-ci par rapport a l'ame 54. Ce reservoir 82 est mis en communication, a ['oppose de l'ame 54, avec une tubulure The lubrication device 62, represented in this FIG. 2, is provided with a reservoir 82, provided in the extension of the channel 72, opposite it relative to the core 54. This reservoir 82 is placed communication, opposite the core 54, with tubing

d'evacuation 84.84.

La presence du reservoir 82 est avantageuse. En effet, elle assure une recuperation des dechets, en particulier des materiaux abrasifs et des poussieres, ainsi que l' evacuation de ces derniers par l'intermediaire de la The presence of the reservoir 82 is advantageous. In fact, it ensures the recovery of waste, in particular abrasive materials and dust, as well as the evacuation of the latter via the

tubulure 84.tubing 84.

A titre de variante non representee, la tubulure 84 peut etre equipee d'un bouchon amovible. Wile peut As a variant not shown, the tubing 84 can be fitted with a removable plug. Wile can

egalement se trouver desaxee par rapport au canal 72. also be off center to channel 72.

La figure 3 illustre une seconde variante de realisation de ['invention. Sur cette figure, les elements mecaniques analogues a ceux des figures precedentes vent Figure 3 illustrates a second alternative embodiment of the invention. In this figure, the mechanical elements similar to those of the previous figures are

affectes des memes numeros de reference, augmentes de 100. assigned the same reference numbers, increased by 100.

Le dispositif de lubrification 112, represente sur cette figure 3, est creuse de deux canaux 1221 et 1222. Ces deux canaux, qui s'etendent de maniere divergente, -l decouchent chacun au voisinage d'une chambre correspondante The lubrication device 112, represented in this FIG. 3, is hollow with two channels 1221 and 1222. These two channels, which extend in a divergent manner, each lie in the vicinity of a corresponding chamber

1181 ou 1182.1181 or 1182.

La fonction de ces canaux 1221 et 1222 est identique a The function of these channels 1221 and 1222 is identical to

celle du canal 22, explicitee en reference a la figure 1. that of channel 22, explained with reference to FIG. 1.

La figure 4 illustre une troisieme variante de realisation de ['invention. Sur cette figure, les elements mecaniques analogues a coux des figures precedentes vent Figure 4 illustrates a third alternative embodiment of the invention. In this figure, the mechanical elements analogous to the necks of the preceding figures are

affectes des memes numeros de reference, augmentes de 150. assigned the same reference numbers, increased by 150.

Le dispositif de lubrification 162, represente sur cette figure 4, possede des chambres 1681 et 1682 qui vent depourvues de levre, analogue a celle 2Ol ou 202 de la The lubrication device 162, represented in this FIG. 4, has chambers 1681 and 1682 which are devoid of lips, similar to that 2Ol or 202 of the

figure 1.figure 1.

Ainsi, ces chambres 1681 et 1682 s'evasent a l' oppose du milieu du corps 164. De la sorte, une telle forme autorise le coincement des extremites de chaque troncon de gaine par rapport aux parois bordant les chambres precitees. Les figures 5 et 6 illustrent une derriere variante de realisation de ['invention. Sur ces figures, les elements mecaniques analogues a ceux des figures precedentes y vent Thus, these chambers 1681 and 1682 flare away from the middle of the body 164. In this way, such a shape allows the ends of each sheath section to be wedged with respect to the walls bordering the above-mentioned chambers. Figures 5 and 6 illustrate a rear embodiment of the invention. In these figures, the mechanical elements similar to those of the previous figures

affectes des memes numeros de reference, augmentes de 200. assigned the same reference numbers, increased by 200.

Sur ces figures 5 et 6, la gaine 206 n'est pas creusee d'une decoupe, comme dans les exemples precedents. Wile se trouve uniquement percee d'un orifice 210, de section transversale nettement plus faible, qui peut etre realise In these Figures 5 and 6, the sheath 206 is not hollowed out with a cutout, as in the previous examples. Wile is only pierced with a hole 210, of significantly smaller cross section, which can be made

au moyen de tout outil approprie.using any suitable tool.

Par ailleurs, ['orifice longitudinal 216, dont est pourvu le dispositif de lubrification 212, presente un diametre nettement superieur a celui des orifices 16, 66, 116 et 166 des figures precedentes. Cet orifice 216 se trouve en outre prolonge par une echancrure 217, qui Furthermore, the longitudinal orifice 216, with which the lubrication device 212 is provided, has a diameter significantly greater than that of the orifices 16, 66, 116 and 166 of the preceding figures. This orifice 216 is further extended by a notch 217, which

definit ainsi deux faces en regard 219 du corps 214. thus defines two opposite faces 219 of the body 214.

De la sorte, ces deux faces 219 vent susceptibles d'etre ecartees, afin de permettre la fixation, par encliquetage elastique, du dispositif 212 sur la gaine 206 du cable 202. Afin d'eviter la rotation intempestive du dispositif 202, les parois du canal 222 vent munies In this way, these two faces 219 are likely to be separated, in order to allow the fixing, by elastic snap-fastening, of the device 212 on the sheath 206 of the cable 202. In order to avoid untimely rotation of the device 202, the walls of the channel 222 wind fitted

d'ergots 213 qui penetrent dans l' orifice 210. lugs 213 which penetrate into the hole 210.

Ainsi, si l'on desire lubrifier l'ame 204 du cable, il s'agit de mettre en communication le canal 222, realise dans le corps 214, avec ['orifice 210 pratique dans la gaine 206. On deverse alors, comme decrit precedemment, un liquide approprie par ce canal 222, ce liquide migrant Thus, if one wishes to lubricate the core 204 of the cable, it is a question of putting in communication the channel 222, produced in the body 214, with the orifice 210 practical in the sheath 206. It is then poured out, as described previously, a liquid suitable for this channel 222, this migrating liquid

alors au voisinage de l'ame 204.then in the vicinity of the core 204.

L'invention permet de realiser les objectifs The invention makes it possible to achieve the objectives

precedemment mentionnes.previously mentioned.

En effet, le dispositif de lubrification de ['invention est susceptible d'etre fixe a un endroit quelconque du cable, entre les deux extremites principales Indeed, the lubrication device of the invention is capable of being fixed at any point on the cable, between the two main ends

de la gaine.sheath.

Par ailleurs, le dispositif de l' invention permet une lubrification efficace du cable de commande. En effet, il garantit notamment la possibilite de repeter cette operation de lubrification, autant de fois que necessaire, Furthermore, the device of the invention allows efficient lubrication of the control cable. Indeed, it guarantees in particular the possibility of repeating this lubrication operation, as many times as necessary,

sans difficulte particuliere.without particular difficulty.

JJ

Claims

1. Lubrication device (12; 62; 112; 162; 212) for cycle control cable (2; 52; 102; 152; 202), this cable comprising an active core (4; 54; 104; 154; 204 ) as well as a peripheral sheath (6; 56; 106; 156; 206), characterized in that this device comprises a body (14; 64; 114; 164; 214) provided with means (201, 2O2; 701, 7O2 ; 1201, 12O2; 1681, 1682; 216) for fixing on said sheath, as well as means (22; 72; 1221, 1222; 172; 222) for passing a lubricant, apses a

directing said lubricant toward said core.

2. Device according to claim 1, characterized in that the fixing means on the cable sheath comprise means for fixing by embolism against the ends (6'1, 6'2; 56'1, 56'2; 106 ' 1, 106'2; 156'1, 156'2) of two sections, sheath cons (61, 62; 561, 562; 1061, 1062; 1561, 1562) separated by a local cutout (10; 60;

; 160) housed in said sheath (6; 56; 106; 156).

3. Device according to claim 2, characterized in that the body (14; 64; 114; 164) of the lubrication device is hollow with a longitudinal orifice (16; 66; 116; 166) extending around the core (4; 54; 104; 154), within said local section (10; 60; 110;

160).

4. Device according to claim 2 or 3, characterized in that the means for fixing by embolism comprise two lips (201, 202; 701, 7O2; 1201, 1202) which is provided with the body, these lips being provided at two opposite ends of the body and being apes

to bear against a section, corresponding sheath con.

5. Device according to claim 1, characterized in that the fixing means comprise means (216, 217) for connection by snap-fitting {lasLique auLour de

ladiLe sheath (206).

6. isposiLif according to any one of the prcAdenLes claims, characLdris in that the passage means include at least a radii channel LraversanL (22; 72; 122 ,, 122; 172; 222) manag in Ie

body of the IubrificaLion device.

7. Arrangement according to claims 3 to 6, characterized in that the or each radial channel (22; 72; 122, 122; 172) opens out around the orifice of the orifice

longitudinal (16; 66; 116; 166) mnag in the body.

8. isosiLif GeIon claims 5 and 6, characterized in that the channel (22) is able to be put in communication with an opening (210), housed in the

sheath (106).

9. Provision according to any of the

previous claims, characterized in that it is

provided with means allowing the removable closure, means for passing lubricant, in particular a plug (24;

74; 124; 174; 224).

10. Device according to any of the

claims 2 4, or 6 oo 7 or 9, caract @ ris en

that it is provided with means (82) for recovering waste, as well as means for removing (84) waste

thus rACup4G.

11. Control cable (2; 52; 102; 152; 202) for cycle, in particular bicycle or motorcycle, characterized in that it is provided with at least one lubrication device conforming to one of the

PREVIOUS CLAIMS.

12. CycIe, in particular bicycIetLe or moLocycIe, characterized in that it includes at least a cAbIe of