WO1994008803A1 - Tyre-mounting wedge - Google Patents
Tyre-mounting wedge Download PDFInfo
- Publication number
- WO1994008803A1 WO1994008803A1 PCT/EP1993/002662 EP9302662W WO9408803A1 WO 1994008803 A1 WO1994008803 A1 WO 1994008803A1 EP 9302662 W EP9302662 W EP 9302662W WO 9408803 A1 WO9408803 A1 WO 9408803A1
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- WO
- WIPO (PCT)
- Prior art keywords
- rim
- tire
- bead
- mounting
- shim
- Prior art date
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
- B60C25/00—Apparatus or tools adapted for mounting, removing or inspecting tyres
- B60C25/01—Apparatus or tools adapted for mounting, removing or inspecting tyres for removing tyres from or mounting tyres on wheels
- B60C25/02—Tyre levers or the like, e.g. hand-held
Definitions
- an intermediate boss for example a "hump”, which prevents the tire from taking off in the event of a large drop in pressure
- a "hump” is only one example of the devices used to avoid tire takeoff, and in what follows, we will call “hump” any type of such device
- each bead of the tire is armed with a circular bead, generally metallic, having a high resistance to elongation so as to ensure the tightening of the tire on its seat.
- this rod has a diameter smaller than that of the rim flange, therein lies the problem of mounting.
- the invention aims to provide a function similar to that of known pliers, but by solving the above problems.
- a mounting wedge for a toroidal tire comprising on either side of its crown a sidewall followed by a bead, on a "hollow base” rim comprising, from its external edges, a rim, a seat, a central groove
- said shim is a body of generally arcuate shape in the longitudinal direction, the base of which has a shape suitable for marrying the rim and the seat of said rim and the width of said rim base gradually reduces from one longitudinal end of said wedge to the other.
- the shim for mounting a tire on a "hollow base” rim is further characterized in that, in its widest part, the base of said shim follows the outer surface of the rim from the rim to edge of the central groove.
- the base of said shim has a shape suitable for marrying the rim, the seat and the hump of said rim.
- Another characteristic of the mounting block according to the invention consists in that its cross section has a convex convex shape capable of providing support to the surface. outside of the bead and of the lower part of the sidewall of the tire when said tire is mounted on said rim, the base of said shim conforming to the outside surface of said rim.
- the material constituting the wedge can advantageously be elastomeric and of medium hardness.
- the wedge has a frame to stiffen it longitudinally.
- this frame is placed inside the shim parallel to the outer surface intended to serve as a support for the bead and the sidewall of the tire during mounting.
- This reinforcing reinforcement may include a longitudinally oriented ply.
- the length of the shim, object of the invention can be between 10 and 20 centimeters, preferably of the order of 15 cm.
- the elasticity of the shim allows it to be used with other dimensions.
- the tire mounting method using the wedge object of the invention consists - after having mounted the first bead - to pass a first part of the second bead in the central groove, then to install the shim on the rim and the seat of the rim in the area where the second bead has already passed over the rim, placing the larger end of the shim on the side where further mounting of the second bead is planned, and finally continuing mounting until 'upon completion; finally, the wedge is easily removed or ejected.
- FIG. 1 is a perspective view of the tire mounting shim
- FIG. 2 is a cross-sectional view along AA, as shown in Figure 1, of the tire mounting area on the rim, with the shim object of the invention;
- FIG. 3 is a cross-sectional view along BB, as shown in Figure 1, of the tire mounting area on the rim, with the shim object of the invention;
- FIG. 4 is a cross-sectional view along AA, similar to Figure 2, of a second embodiment of the wedge object of the invention.
- FIG. 5 is a perspective view of a semi-automatic tire mounting machine.
- FIG. 1 presents a perspective view of a mounting block 1 for tires, object of the invention.
- This wedge 1 has a generally longitudinally arched shape. Its cross section is gradually reduced from one end 3 of the longitudinal edge 2 to the other 4.
- its base 5 also arched, at the end 3, the shape of the rim 11, the seat 12 and the hump 13 of a rim 10 of a vehicle wheel 22 and is gradually reduced longitudinally until it matches, at the other end 4, only the shape of the rim 11 and of a small part of the seat 12 of said rim 10 of wheel 22 ( Figures 2 and 3).
- the surface 6, adjacent to the base 5 by the edge of said base 5 furthest from the rim flange 11, has a convex convex shape.
- This convex convex shape is capable of providing support for the outer surface of the bead 26 and of the lower part of the sidewall 28 when the tire is mounted on the rim 10, the base 5 of said shim 1 conforming to the outer surface of the rim 10 .
- the shim 1 is made of an elastomeric material of medium hardness.
- this hardness is between 40 and 65 shore A.
- Figure 4 shows a second embodiment of the wedge 1.
- the wedge 1 comprises a reinforcing frame 7.
- This frame 7 is placed inside the wedge 1 substantially parallel to the outer surface 6 intended to serve as a support for the bead 26 and the lower part of the sidewall of the tire when it is mounted on the rim 10.
- This reinforcement 7 serves to stiffen the shim 1 longitudinally and comprises, for example, a reinforcement ply oriented longitudinally.
- the elasticity of the shim 1 made of such a material as well as the coefficient of friction with the rim 10 are such that the shim 1 maintains itself in position against the rim 10 during mounting even with mounting lubrication classic.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Tires In General (AREA)
Abstract
Wedge (1) for mounting a tyre (23) onto a hollow base rim (10). The wedge (1) is made of an elastomer material of average hardness, its base (5) conforming to the shape of the flange (11), the seat (12) and the hump (13) of the rim (10) of a vehicle's wheel (22). The wedge (1) holds in place in the central groove (14) of the rim (10), the bead (26) of the tyre (23) during mounting. The wedge is for use with semi-automatic mounting machines.
Description
CALE DE MONTAGE DE PNEUMATIQUES TIRE MOUNTING CHECK
La présente invention a pour objet une cale de montage de pneumatiques de véhicules ; elle facilite les opérations de montage du pneumatique sur toute jante de type "base creuse", notamment lorsqu'on utilise des machines de montage semi-automatiques.The present invention relates to a mounting block for vehicle tires; it facilitates the mounting operations of the tire on any rim of the "hollow base" type, in particular when semi-automatic mounting machines are used.
On sait qu'une jante de type base creuse est constituée de plusieurs zones annulaires contiguës : en partant du bord externe, il y a :We know that a hollow base type rim consists of several contiguous annular zones: starting from the outer edge, there are:
- le rebord de jante, ou zone d'accrochage, dont le rôle est de retenir le bourrelet du pneumatique lorsqu'il est gonflé ;- the rim flange, or attachment zone, the role of which is to retain the bead of the tire when it is inflated;
- le siège du bourrelet, légèrement conique, sur lequel repose le bourrelet et qui assure le serrage, ainsi que l'étanchéité à l'air dans le cas des pneumatiques à chambre incorporée dits "tubeless" ;- the seat of the bead, slightly conical, on which the bead rests and which ensures the tightening, as well as the air tightness in the case of tires with incorporated chamber called "tubeless";
- éventuellement, un bossage intermédiaire, par exemple un "hump", qui évite le déjantage du pneumatique en cas de forte baisse de pression (un "hump" n'est qu'un exemple des dispositifs utilisés pour éviter le déjantage des pneumatiques, et dans ce qui suit, on appellera "hump" tout type de tels dispositifs) ;- optionally, an intermediate boss, for example a "hump", which prevents the tire from taking off in the event of a large drop in pressure (a "hump" is only one example of the devices used to avoid tire takeoff, and in what follows, we will call "hump" any type of such device);
- une gorge centrale destinée à permettre le montage du pneumatique grâce à son diamètre inférieur à celui du siège.- A central groove intended to allow the mounting of the tire thanks to its diameter less than that of the seat.
On sait aussi que chaque bourrelet du pneumatique est armé d'une tringle circulaire, généralement métallique, ayant une forte résistance à l'allongement de manière à assurer le
serrage du pneumatique sur son siège. Comme cette tringle a un diamètre inférieur à celui du rebord de jante, c'est là que réside le problème du montage.It is also known that each bead of the tire is armed with a circular bead, generally metallic, having a high resistance to elongation so as to ensure the tightening of the tire on its seat. As this rod has a diameter smaller than that of the rim flange, therein lies the problem of mounting.
Pour monter le pneumatique sur sa jante, on commence par faire passer une partie du premier bourrelet par-dessus le rebord de jante et on la place dans la gorge centrale ; on peut alors faire passer le reste du bourrelet par-dessus le rebord grâce à une légère ovalisation de la tringle et une déformation du flanc souple du pneumatique.To mount the tire on its rim, we start by passing part of the first bead over the rim flange and place it in the central groove; the rest of the bead can then be passed over the rim thanks to a slight ovalization of the bead wire and a deformation of the flexible sidewall of the tire.
Pour monter le second bourrelet avec les pneumatiques qui avaient des flancs assez grands, c'est-à-dire un rapport H/B (hauteur sur largeur) compris entre 1 et 0.8, on pouvait procéder comme on vient de le décrire pour le premier bourrelet, sans difficulté particulière.To mount the second bead with the tires which had fairly large sidewalls, that is to say an H / B ratio (height over width) of between 1 and 0.8, it was possible to proceed as just described for the first bead, without particular difficulty.
Mais actuellement, les pneumatiques ont des rapports H/B de plus en plus faibles puisqu'on arrive à des valeurs de 0.5, voire moins, et cette réduction de la hauteur des flancs conduit à la difficulté suivante : lorsqu'une partie du second bourrelet est passée par-dessus le rebord de jante, l'opérateur doit exercer des efforts très importants pour placer cette partie du bourrelet dans la gorge centrale ainsi que pour la maintenir dans cette gorge centrale lorsque le montage se poursuit.But currently, the tires have increasingly low H / B ratios since we arrive at values of 0.5 or even less, and this reduction in the height of the sidewalls leads to the following difficulty: when part of the second bead has passed over the rim flange, the operator must exert very great efforts to place this part of the bead in the central groove as well as to maintain it in this central groove when the mounting continues.
Plusieurs dispositifs connus (voir par exemple le modèle d'utilité allemand n° 75 25 170 ou le brevet US 3 908 490) ont pour but de pallier cet inconvénient au moyen de pinces qui maintiennent fermement la première partie du second bourrelet mise en place dans la gorge centrale, pendant que l'opérateur ou la machine fait passer le reste dudit bourrelet par-dessus le rebord de jante.
Mais, ces pinces, qui doivent être solidement fixées au rebord de jante, peuvent laisser des traces (griffures, rayures) sur les jantes aux lieux de leur fixation. De plus, elles ne sont pas adaptables à tous les types de roues disponibles aujourd'hui, par exemple aux roues en alliage dites "full face" dont le disque prend directement appui sur l'extrémité du rebord de jante.Several known devices (see for example the German utility model No. 75 25 170 or US patent 3,908,490) are intended to overcome this drawback by means of clamps which firmly hold the first part of the second bead in place in the central groove, while the operator or the machine passes the remainder of said bead over the rim flange. However, these clips, which must be securely attached to the rim flange, can leave marks (scratches, scratches) on the rims where they are fixed. In addition, they are not adaptable to all types of wheels available today, for example to alloy wheels called "full face" whose disc bears directly on the end of the rim flange.
L'invention vise à assurer une fonction analogue à celle des pinces connues, mais en résolvant les problèmes précédents.The invention aims to provide a function similar to that of known pliers, but by solving the above problems.
Selon l'invention, une cale de montage d'un pneumatique de forme toroïdale, comportant de part et d'autre de son sommet un flanc suivi d'un bourrelet, sur une jante "base creuse" comportant à partir de ses bords externes un rebord, un siège, une gorge centrale, est caractérisée en ce que ladite cale est un corps de forme générale arquée dans le sens longitudinal dont la base a une forme propre à épouser le rebord et le siège de ladite jante et dont la largeur de ladite base se réduit progressivement d'une extrémité longitudinale de ladite cale à l'autre.According to the invention, a mounting wedge for a toroidal tire, comprising on either side of its crown a sidewall followed by a bead, on a "hollow base" rim comprising, from its external edges, a rim, a seat, a central groove, is characterized in that said shim is a body of generally arcuate shape in the longitudinal direction, the base of which has a shape suitable for marrying the rim and the seat of said rim and the width of said rim base gradually reduces from one longitudinal end of said wedge to the other.
La cale de montage d'un pneumatique sur une jante "base creuse" selon l'invention est encore caractérisée en ce que, dans sa partie la plus large, la base de ladite cale épouse la surface extérieure de la jante du rebord jusqu'au bord de la gorge centrale.The shim for mounting a tire on a "hollow base" rim according to the invention is further characterized in that, in its widest part, the base of said shim follows the outer surface of the rim from the rim to edge of the central groove.
Si la jante comporte un hump, la base de ladite cale a une forme propre à épouser le rebord, le siège et le hump de ladite jante.If the rim has a hump, the base of said shim has a shape suitable for marrying the rim, the seat and the hump of said rim.
Une autre caractéristique de la cale de montage selon l'invention consiste en ce que sa section transversale a une forme bombée convexe propre à fournir un appui à la surface
extérieure du bourrelet et de la partie basse du flanc du pneumatique lors du montage dudit pneumatique sur ladite jante, la base de ladite cale épousant la surface extérieure de ladite jante.Another characteristic of the mounting block according to the invention consists in that its cross section has a convex convex shape capable of providing support to the surface. outside of the bead and of the lower part of the sidewall of the tire when said tire is mounted on said rim, the base of said shim conforming to the outside surface of said rim.
Le matériau constituant la cale peut avantageusement être élastomérique et de dureté moyenne.The material constituting the wedge can advantageously be elastomeric and of medium hardness.
Selon un second mode de réalisation, la cale comporte une armature pour la rigidifier longitudinalement. Avantageusement, cette armature est placée à l'intérieur de la cale parallèlement à la surface extérieure destinée à servir d'appui au bourrelet et au flanc du pneumatique lors du montage. Cette armature de renfort peut comporter une nappe orientée longitudinalement.According to a second embodiment, the wedge has a frame to stiffen it longitudinally. Advantageously, this frame is placed inside the shim parallel to the outer surface intended to serve as a support for the bead and the sidewall of the tire during mounting. This reinforcing reinforcement may include a longitudinally oriented ply.
Pour des pneumatiques tourisme, la longueur de la cale, objet de l'invention, peut être comprise entre 10 et 20 centimètres, de préférence de l'ordre de 15 cm.For passenger car tires, the length of the shim, object of the invention, can be between 10 and 20 centimeters, preferably of the order of 15 cm.
Lorsque les formes de la cale, et notamment de sa base, sont établies pour une dimension courante de pneumatiques (par exemple de 13 à 16 pouces) , l'élasticité de la cale permet de l'utiliser avec d'autres dimensions.When the shapes of the shim, and in particular of its base, are established for a current dimension of tires (for example from 13 to 16 inches), the elasticity of the shim allows it to be used with other dimensions.
Le procédé de montage de pneumatiques mettant en oeuvre la cale objet de l'invention consiste - après avoir monté le premier bourrelet - à faire passer une première partie du second bourrelet dans la gorge centrale, puis à installer la cale sur le rebord et le siège de la jante dans la zone où le second bourrelet est déjà passé par-dessus le rebord, en plaçant l'extrémité la plus grosse de la cale du côté où la poursuite du montage du second bourrelet est prévue, et enfin à continuer le montage jusqu'à son achèvement ; finalement, la cale est retirée ou éjectée sans difficulté.
On va décrire deux exemples de mise en oeuvre de l'invention donnés à titre non limitatif en se référant aux dessins annexés sur lesquels :The tire mounting method using the wedge object of the invention consists - after having mounted the first bead - to pass a first part of the second bead in the central groove, then to install the shim on the rim and the seat of the rim in the area where the second bead has already passed over the rim, placing the larger end of the shim on the side where further mounting of the second bead is planned, and finally continuing mounting until 'upon completion; finally, the wedge is easily removed or ejected. We will describe two examples of implementation of the invention given without limitation with reference to the accompanying drawings in which:
- la figure 1 est une vue en perspective de la cale de montage de pneumatiques ;- Figure 1 is a perspective view of the tire mounting shim;
- la figure 2 est une vue en coupe transversale selon AA, tel qu'indiqué à la figure 1, de la zone de montage du pneumatique sur la jante, avec la cale objet de l'invention ;- Figure 2 is a cross-sectional view along AA, as shown in Figure 1, of the tire mounting area on the rim, with the shim object of the invention;
- la figure 3 est une vue en coupe transversale selon BB, tel qu'indiqué à la figure 1, de la zone de montage du pneumatique sur la jante, avec la cale objet de l'invention ;- Figure 3 is a cross-sectional view along BB, as shown in Figure 1, of the tire mounting area on the rim, with the shim object of the invention;
- la figure 4 est une vue en coupe transversale selon AA, similaire à la figure 2, d'un second mode de réalisation de la cale objet de l'invention ;- Figure 4 is a cross-sectional view along AA, similar to Figure 2, of a second embodiment of the wedge object of the invention;
- la figure 5 est une vue en perspective d'une machine de montage de pneumatiques semi-automatique.- Figure 5 is a perspective view of a semi-automatic tire mounting machine.
La figure 1 présente une vue en perspective d'une cale de montage 1 de pneumatiques, objet de l'invention. Cette cale 1 a une forme générale arquée longitudinalement. Sa section transversale se réduit progressivement d'une extrémité 3 de l'arête longitudinale 2 à l'autre 4. Corrélativement, sa base 5 elle aussi arquée épouse, à l'extrémité 3, la forme du rebord 11, du siège 12 et du hump 13 d'une jante 10 de roue 22 de véhicule et se réduit progressivement longitudinalement jusqu'à n'épouser, à l'autre extrémité 4, que la forme du rebord 11 et d'une petite partie du siège 12 de ladite jante
10 de roue 22 (figures 2 et 3) .FIG. 1 presents a perspective view of a mounting block 1 for tires, object of the invention. This wedge 1 has a generally longitudinally arched shape. Its cross section is gradually reduced from one end 3 of the longitudinal edge 2 to the other 4. Correspondingly, its base 5 also arched, at the end 3, the shape of the rim 11, the seat 12 and the hump 13 of a rim 10 of a vehicle wheel 22 and is gradually reduced longitudinally until it matches, at the other end 4, only the shape of the rim 11 and of a small part of the seat 12 of said rim 10 of wheel 22 (Figures 2 and 3).
La surface 6, adjacente à la base 5 par l'arête de ladite base 5 la plus éloignée du rebord 11 de jante 10, a une forme convexe bombée. Cette forme convexe bombée est propre à fournir un appui à la surface extérieure du bourrelet 26 et de la partie basse du flanc 28 lors du montage du pneumatique sur la jante 10, la base 5 de ladite cale 1 épousant la surface extérieure de la jante 10.The surface 6, adjacent to the base 5 by the edge of said base 5 furthest from the rim flange 11, has a convex convex shape. This convex convex shape is capable of providing support for the outer surface of the bead 26 and of the lower part of the sidewall 28 when the tire is mounted on the rim 10, the base 5 of said shim 1 conforming to the outer surface of the rim 10 .
De préférence, la cale 1 est réalisée en un matériau élastomérique de dureté moyenne. Par exemple cette dureté est comprise entre 40 et 65 shore A.Preferably, the shim 1 is made of an elastomeric material of medium hardness. For example, this hardness is between 40 and 65 shore A.
La figure 4 présente un second mode de réalisation de la cale 1. Selon celui-ci, la cale 1 comprend une armature de renforcement 7. Cette armature 7 est placée à l'intérieur de la cale 1 sensiblement parallèlement à la surface extérieure 6 destinée à servir d'appui au bourrelet 26 et à la partie basse du flanc du pneumatique lors de son montage sur la jante 10. Cette armature 7 sert à rigidifier longitudinalement la cale 1 et comporte, par exemple, une nappe de renforcement orientée longitudinalement.Figure 4 shows a second embodiment of the wedge 1. According to this, the wedge 1 comprises a reinforcing frame 7. This frame 7 is placed inside the wedge 1 substantially parallel to the outer surface 6 intended to serve as a support for the bead 26 and the lower part of the sidewall of the tire when it is mounted on the rim 10. This reinforcement 7 serves to stiffen the shim 1 longitudinally and comprises, for example, a reinforcement ply oriented longitudinally.
L'élasticité de la cale 1 réalisée en un tel matériau ainsi que le coefficient de frottement avec la jante 10 sont tels que la cale 1 se maintient d'elle-même en position contre la jante 10 pendant le montage même avec une lubrification de montage classique.The elasticity of the shim 1 made of such a material as well as the coefficient of friction with the rim 10 are such that the shim 1 maintains itself in position against the rim 10 during mounting even with mounting lubrication classic.
Comme on le voit sur la figure 5, une machine de montage 20 de pneumatiques de type connu comprend essentiellement un bâti 21 sur lequel un plateau tournant (non visible) permet de faire tourner l'ensemble roue 22 et pneumatique 23, généralement autour d'un axe vertical, tandis qu'un outil 24
couplé à un galet 25 fait passer par-dessus le rebord 11 de jante 10 le bourrelet 26. Le montage peut aussi se faire manuellement avec l'aide d'outils connus sous le nom de leviers de montage.As can be seen in FIG. 5, a machine 20 for mounting tires of known type essentially comprises a frame 21 on which a turntable (not visible) makes it possible to rotate the wheel 22 and tire 23 assembly, generally around a vertical axis, while a tool 24 coupled to a roller 25 passes over the rim flange 11 of the rim 10 the bead 26. The assembly can also be done manually with the help of tools known under the name of assembly levers.
L'emploi de la cale 1, objet de l'invention, est très simple : dès que la première partie du second bourrelet 26 est passée par-dessus le rebord 11, on installe la cale de montage 1 sur le rebord 11 de jante 10 et le siège 12 comme on le voit sur les figures 2, 3,4 et 5 en plaçant l'extrémité la plus grosse de la cale du côté où l'opérateur va poursuivre le montage. Cette installation engage le bourrelet 26 dans la gorge centrale 14 et interdit audit bourrelet 26 de ressortir de ladite gorge centrale 14. Ensuite, la machine 20 continue le montage normalement jusqu'à son terme ; il suffit alors de poursuivre la rotation pour que la cale 1 tournant avec l'ensemble roue 22 et pneumatique 23 vienne en butée contre le galet de guidage 25 ce qui a pour effet de l'éjecter automatiquement.The use of the shim 1, object of the invention, is very simple: as soon as the first part of the second bead 26 has passed over the flange 11, the mounting shim 1 is installed on the rim flange 11 and the seat 12 as seen in Figures 2, 3,4 and 5 by placing the larger end of the wedge on the side where the operator will continue the assembly. This installation engages the bead 26 in the central groove 14 and prevents said bead 26 from coming out of said central groove 14. Then, the machine 20 continues the assembly normally until its completion; it then suffices to continue the rotation so that the shim 1 rotating with the wheel 22 and tire 23 assembly abuts against the guide roller 25, which has the effect of automatically ejecting it.
Pour l'emploi de cette cale 1 avec une machine de montage semi-automatique 20, deux versions sont proposées, à droite ou à gauche, selon le sens de rotation de la machine de montage utilisée.For the use of this wedge 1 with a semi-automatic assembly machine 20, two versions are proposed, on the right or on the left, according to the direction of rotation of the assembly machine used.
Les avantages principaux de cette cale par rapport aux outils connus sont nombreux : on peut citer tout d'abord sa simplicité de réalisation, donc son coût très modique, ainsi que sa facilité d'utilisation tout à fait remarquable qui amène un gain de temps important au montage.The main advantages of this wedge compared to known tools are numerous: we can first mention its simplicity of construction, therefore its very low cost, as well as its ease of use quite remarkable which leads to a significant saving of time mounting.
De plus, cette cale 1 ne provoque aucune dégradation de la roue 22 au cours du montage, telle que griffure de la peinture ou rayure de l'alliage léger.
La forme bombée convexe de la surface 6 couplée à la diminution progressive de la section de la cale 1 entraînent une courbure du bourrelet 26 et notamment de la tringle 27 en amont de la cale 1 (c'est-à-dire dans la zone où le bourrelet 26 est encore à l'extérieur de la jante 10) très progressive ce qui leur évite toute fatigue excessive au cours du montage.In addition, this wedge 1 does not cause any degradation of the wheel 22 during assembly, such as scratching the paint or scratching the light alloy. The convex convex shape of the surface 6 coupled with the gradual reduction in the section of the wedge 1 causes the bead 26 and in particular the bead 27 to be curved upstream of the wedge 1 (that is to say in the zone where the bead 26 is still outside the rim 10) very progressive which prevents them from excessive fatigue during assembly.
Enfin, cette cale 1 étant simplement en contact avec la surface extérieure de la jante 10 et ne nécessitant aucun blocage sur la surface intérieure de ladite jante 10 peut s'adapter à tous les types de roues disponibles sur le marché, en particulier aux roues "full face".Finally, this shim 1 being simply in contact with the outer surface of the rim 10 and requiring no blocking on the inner surface of said rim 10 can adapt to all types of wheels available on the market, in particular to wheels " full face ".
Les modes de réalisation de l'invention ci-dessus présentés sont particulièrement adaptés aux roues 22 du type base creuse de véhicules légers. Mais, l'application de l'invention au montage des pneumatiques poids lourds sur des jantes base creuse 5 et 15° est possible après une adaptation dimensionnelle de la cale 1 au profil des jantes correspondantes.
The embodiments of the invention presented above are particularly suitable for wheels 22 of the hollow base type of light vehicles. However, the application of the invention to the mounting of truck tires on hollow base rims 5 and 15 ° is possible after a dimensional adaptation of the shim 1 to the profile of the corresponding rims.
Claims
1. Cale de montage (1) d'un pneumatique de forme toroïdale comportant de part et d'autre de son sommet un flanc (28) suivi d'un bourrelet (26) sur une jante "base creuse" (10) comportant à partir de ses bords externes un rebord (11) , un siège (12) , une gorge centrale (14) , caractérisée en ce que ladite cale (1) est un corps de forme générale arquée dans le sens longitudinal dont la base (5) a une forme propre à épouser le rebord (11) et le siège (12) de ladite jante (10) et dont la largeur de ladite base (5) se réduit progressivement d'une extrémité longitudinale (3) de ladite cale (1) à l'autre (4) .1. Mounting wedge (1) of a toroidal tire comprising on either side of its crown a sidewall (28) followed by a bead (26) on a "hollow base" rim (10) comprising from its outer edges a rim (11), a seat (12), a central groove (14), characterized in that said wedge (1) is a body of generally arched shape in the longitudinal direction whose base (5) has a shape suitable for marrying the rim (11) and the seat (12) of said rim (10) and the width of said base (5) gradually decreases from one longitudinal end (3) of said shim (1) to the other (4).
2. Cale de montage (1) d'un pneumatique sur une jante "base creuse" (10) selon la revendication 1, caractérisée en ce que, dans sa partie la plus large, la base (5) de ladite cale2. Shim for mounting (1) of a tire on a "hollow base" rim (10) according to claim 1, characterized in that, in its widest part, the base (5) of said shim
(I) épouse la surface extérieure de la jante (10) du rebord(I) conforms to the outer surface of the rim (10) of the flange
(II) jusqu'au bord de la gorge centrale (14) .(II) to the edge of the central groove (14).
3. Cale de montage (1) d'un pneumatique sur une jante "base creuse" (10) selon l'une des revendications 1 et 2, caractérisée en ce que, lorsque ladite jante (10) comporte un "hump" (13) , la base (5) de ladite cale (1) a une forme propre à épouser le rebord (11) , le siège (12) et le hump (13) de ladite jante (10).3. Cleat for mounting (1) a tire on a rim "hollow base" (10) according to one of claims 1 and 2, characterized in that, when said rim (10) comprises a "hump" (13 ), the base (5) of said shim (1) has a shape suitable for marrying the flange (11), the seat (12) and the hump (13) of said rim (10).
4. Cale de montage (1) d'un pneumatique sur une jante "base creuse" (10) selon l'une des revendications 1 à 3, caractérisée en ce que, sa section transversale a une forme bombée convexe propre à fournir un appui à la surface extérieure du bourrelet (26) et de la partie basse du flanc (28) du pneumatique lors du montage dudit pneumatique sur ladite jante (10) , la base (5) de ladite cale (1) épousant la surface extérieure de ladite jante (10) .4. A mounting block (1) for a tire on a "hollow base" rim (10) according to one of claims 1 to 3, characterized in that its cross section has a convex convex shape capable of providing support. on the outer surface of the bead (26) and of the lower part of the sidewall (28) of the tire when said tire is mounted on said rim (10), the base (5) of said shim (1) conforming to the exterior surface of said rim (10).
5. Cale de montage (1) d'un pneumatique sur une jante "base creuse" (10) selon l'une des revendications 1 à 4, caractérisée en ce qu'elle est réalisée en un matériau élastomérique de dureté moyenne.5. A mounting block (1) for a tire on a "hollow base" rim (10) according to one of claims 1 to 4, characterized in that it is made of an elastomeric material of medium hardness.
6. Cale de montage (1) d'un pneumatique sur une jante "base creuse" (10) selon l'une des revendications 1 à 5, caractérisée en ce qμ'elle comporte une armature de renforcement (7) .6. mounting block (1) of a tire on a rim "hollow base" (10) according to one of claims 1 to 5, characterized in that it comprises a reinforcing reinforcement (7).
7. Cale de montage (1) d'un pneumatique sur une jante "base creuse" (10) selon la revendication 6, caractérisée en ce que l'armature de renforcement (7) est placée à l'intérieur de la cale (1) sensiblement parallèlement à la surface extérieure (6) destinée à servir d'appui à la surface extérieure du bourrelet (26) et de la partie basse du flanc (28) du pneumatique lors du montage dudit pneumatique sur ladite jante (10) .7. A mounting block (1) for a tire on a "hollow base" rim (10) according to claim 6, characterized in that the reinforcing reinforcement (7) is placed inside the block (1). ) substantially parallel to the outer surface (6) intended to serve as a support for the outer surface of the bead (26) and of the lower part of the sidewall (28) of the tire when said tire is mounted on said rim (10).
8. Cale de montage (1) d'un pneumatique sur une jante "base creuse" (10) selon l'une des revendications 1 à 7, caractérisée en ce qu'elle a une longueur de l'ordre de dix à vingt centimètres.8. A mounting block (1) for a tire on a "hollow base" rim (10) according to one of claims 1 to 7, characterized in that it has a length of the order of ten to twenty centimeters. .
9. Procédé de montage d'un pneumatique sur une jante "base creuse" (10) avec une cale de montage (1) selon l'une de revendications 1 à 8, caractérisé en ce que - après avoir monté le premier bourrelet - on fait passer une première partie du second bourrelet (26) dans la gorge centrale (14) , puis on installe ladite cale (1) sur le rebord (11) et le siège (12) de la jante dans la zone où le second bourrelet (26) est déjà passé par-dessus le rebord (11) , en plaçant l'extrémité la plus grosse de la cale (1) du côté où la poursuite du montage du second bourrelet (26) est prévue, et enfin on continue le montage jusqu'à son achèvement, la cale (1) étant ensuite dégagée ou éjectée sans difficulté. 9. A method of mounting a tire on a "hollow base" rim (10) with a mounting shim (1) according to one of claims 1 to 8, characterized in that - after having mounted the first bead - on passes a first part of the second bead (26) into the central groove (14), then the said wedge (1) is installed on the flange (11) and the seat (12) of the rim in the area where the second bead ( 26) has already passed over the ledge (11), placing the larger end of the wedge (1) on the side where further mounting of the second bead (26) is provided, and finally the assembly is continued until its completion, the wedge (1) then being released or ejected without difficulty.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR92/12634 | 1992-10-19 | ||
| FR9212634A FR2696981A1 (en) | 1992-10-19 | 1992-10-19 | Tire mounting block and method of implementation. |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO1994008803A1 true WO1994008803A1 (en) | 1994-04-28 |
Family
ID=9434768
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/EP1993/002662 WO1994008803A1 (en) | 1992-10-19 | 1993-09-30 | Tyre-mounting wedge |
Country Status (2)
| Country | Link |
|---|---|
| FR (1) | FR2696981A1 (en) |
| WO (1) | WO1994008803A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2727900A1 (en) * | 1994-12-12 | 1996-06-14 | Couzinet Jean Francois | Protective fitting used when removing tyres from wheels |
| DE202013009387U1 (en) | 2013-10-22 | 2015-01-27 | Snap-On Equipment Srl A Unico Socio | Tire changers - / - disassembled tool |
| CN108162701A (en) * | 2018-01-06 | 2018-06-15 | 刘斌 | A kind of tire quick-release arrangement |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR504006A (en) * | 1919-06-05 | 1920-06-23 | William John Owens | Device for placing tires on the rims of wheels of automobiles, motorcycles, bicycles and other vehicles |
| GB1314962A (en) * | 1971-01-08 | 1973-04-26 | Goodyear Tire & Rubber | Tyre mounting tool |
| US3942575A (en) * | 1974-08-09 | 1976-03-09 | Tuxco Corporation | Portable tire changing apparatus and method for mounting and demounting heavy duty tires on a wheel |
| DE7525170U (en) * | 1975-08-08 | 1976-03-11 | Gebr. Hofmann Kg Maschinenfabrik, 6100 Darmstadt | Auxiliary tool for the assembly of motor vehicle tires |
| EP0148649A1 (en) * | 1984-01-12 | 1985-07-17 | Motor Wheel Corporation | Method and apparatus for removing tires from rims |
-
1992
- 1992-10-19 FR FR9212634A patent/FR2696981A1/en active Pending
-
1993
- 1993-09-30 WO PCT/EP1993/002662 patent/WO1994008803A1/en active Application Filing
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR504006A (en) * | 1919-06-05 | 1920-06-23 | William John Owens | Device for placing tires on the rims of wheels of automobiles, motorcycles, bicycles and other vehicles |
| GB1314962A (en) * | 1971-01-08 | 1973-04-26 | Goodyear Tire & Rubber | Tyre mounting tool |
| US3942575A (en) * | 1974-08-09 | 1976-03-09 | Tuxco Corporation | Portable tire changing apparatus and method for mounting and demounting heavy duty tires on a wheel |
| DE7525170U (en) * | 1975-08-08 | 1976-03-11 | Gebr. Hofmann Kg Maschinenfabrik, 6100 Darmstadt | Auxiliary tool for the assembly of motor vehicle tires |
| EP0148649A1 (en) * | 1984-01-12 | 1985-07-17 | Motor Wheel Corporation | Method and apparatus for removing tires from rims |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2727900A1 (en) * | 1994-12-12 | 1996-06-14 | Couzinet Jean Francois | Protective fitting used when removing tyres from wheels |
| DE202013009387U1 (en) | 2013-10-22 | 2015-01-27 | Snap-On Equipment Srl A Unico Socio | Tire changers - / - disassembled tool |
| CN108162701A (en) * | 2018-01-06 | 2018-06-15 | 刘斌 | A kind of tire quick-release arrangement |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2696981A1 (en) | 1994-04-22 |
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