EP0000799B1 - Mechanism for adjusting the tool of a tyre mounting and demounting apparatus. - Google Patents

Mechanism for adjusting the tool of a tyre mounting and demounting apparatus. Download PDF

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Publication number
EP0000799B1
EP0000799B1 EP78200118A EP78200118A EP0000799B1 EP 0000799 B1 EP0000799 B1 EP 0000799B1 EP 78200118 A EP78200118 A EP 78200118A EP 78200118 A EP78200118 A EP 78200118A EP 0000799 B1 EP0000799 B1 EP 0000799B1
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EP
European Patent Office
Prior art keywords
arm
wheel
tool
vertical column
fact
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.)
Expired
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EP78200118A
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German (de)
French (fr)
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EP0000799A1 (en
Inventor
Francis Du Quesne
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Individual
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Individual
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Publication of EP0000799A1 publication Critical patent/EP0000799A1/en
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    • 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
    • B60C25/05—Machines
    • B60C25/132—Machines for removing and mounting tyres
    • 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
    • B60C25/05—Machines
    • B60C25/0563—Tools interacting with the tyre and moved in relation to the tyre during operation
    • B60C25/0566—Tools interacting with the tyre and moved in relation to the tyre during operation rolling only

Definitions

  • the subject of the invention is a mechanism which serves to remotely adjust a wheel, the tool of an apparatus used for fitting and removing an automobile tire, said wheel being fixed on a turntable, controlled by a motor. and animated by a rotational movement along said tool.
  • This device has the disadvantage that to adjust the tool to a desired distance from the wheel, both in a horizontal plane and in a vertical plane, in order to avoid friction between the wheel and the tool, it is necessary to move the horizontal arm in the column box, fix this arm and move the bar up in the arm. Various manipulations must therefore be carried out.
  • Another disadvantage is that for each new operation, the tool must be moved aside and replaced in the working position.
  • BE-A-852387 Another apparatus comprising on the one hand a horizontal arm on which a carriage movable along this arm is mounted and in which a bar with tool is suspended, adjustable in height, and on the other hand, a single means making it possible to fix the carriage at the same time on the arm, to fix the bar in the carriage and to place the above-mentioned bar at a certain angle in order to place the tool in two directions at a predetermined distance from the wheel fixed.
  • the object of the invention is to provide a relatively simple construction mechanism by means of which only a minimum of manipulation is necessary to place the tool at the desired distance from the wheel, both in a horizontal plane and in a plane. vertical, to avoid friction between the wheel and the tool.
  • the arm transversely displaceable in the vertical column is mounted in slope towards the wheel and between the arm and the vertical column, there is provided a means of displacement and fixing allowing on the one hand completely free movement and progressive movement of the arm in a direction opposite to the wheel relative to the vertical column in order to adjust the distance between the wheel and the tool and on the other hand the blocking of the arm in the direction of the wheel relative to the vertical column.
  • FIG. 1 we see the frame 1, in which is housed a control mechanism of a rotary table 2 with claws 3 to fix and control the wheel 4 so as to rotate it.
  • the device can be provided with a well-known device 5 for taking off the tire.
  • a vertical column 6 is fixed on the frame 1.
  • This vertical column 6 carries a box 7 at the upper part. In this box, it is mounted in slope towards the wheel, an axially displaceable arm 8, guided between two guide rollers 9 diagonally mounted and two tenons mounted diagonally. Thanks to this arrangement, the arm 8 can be rolled in the box 7 and is mounted at a fixed angle.
  • the end of the arm 8 directed towards the wheel 4 is provided with a block 11 in which is vertically suspended a bar 12 with handle 13.
  • This bar is adjustable in height and can, thanks to a locking means 14 with handle 15, be fixed in the block 11. Between the handle 13 and the block 11, a pressure spring 16 is placed, which balances the weight of the bar 12.
  • the tool which is used to install and remove the tire from the wheel is fixed to the lower part of this bar 12.
  • the pressure roller 17 which is fixed on the support 18 of the bar 12, which pressure roller cooperates with the bead of the tire to be laid.
  • the guide roller 19 which is used to guide the bead of the tire outside the circumference of the rim of the wheel during the fitting of the tire.
  • toothed freewheel 20 which can rotate freely in the direction of rotation of the needles of a watch but not in the opposite direction.
  • This freewheel is mounted between two flanges 21-22 in the form of a disc. Via a pin 23, it is mounted on the box 7 the end of a toothed segment 24 which, by means of a handle 25 placed at the other end of said segment, can be engaged with the toothed freewheel 20.
  • the flanges 21-22 also cover the part engaged with the toothed freewheel 20 of the toothed segment 24.
  • the axis 23 of the toothed segment 24 consists of a bolt with nut and between the toothed segment and the nut there is provided a spring washer which exerts pressure on the toothed segment, so that the toothed segment can be placed and maintained in a desired position.
  • a counterweight 26 is placed in the vertical column 6 which, by means of a cable 27 passing over a cable roller 28, is fixed to a small block 29 of the arm 8
  • the cable 27 is housed in a groove 30, provided in the lower part of the arm 8.
  • the toothed segment 24 is preferably provided with two stops which cooperate with fixed parts of the box 7 to limit the two extreme positions of this segment .
  • the arm 8 is rolled backwards in the box 7, in such a way that the tool 17-19 which is used to install or remove the tire, is at a distance from the turntable 2 to fix the wheel (fig. 2).
  • the toothed segment 24 is pivoted on its axis 23 in the extreme forward position (fig. 2).
  • a wheel 4 is placed between the claws 3 of the rotary table 2 and the wheel is fixed to this rotary table which may be of any type.
  • a tire is then laid obliquely on the wheel in the well known manner.
  • the arm 8 is rolled towards the wheel 4 and the bar 12 is released by the handle 15 to lower the tool 17-19, until the extreme upper edge of the wheel is in contact with the tool in the angle formed between the pressure roller 17 and its support 18. Then the bar is fixed by the handle 15. 12 in this position.
  • the slightest displacement of the latter in the direction opposite to the wheel automatically gives a clearance of the tool 17-19 both in the vertical plane and in the horizontal plane, relative to the wheel 4.
  • the toothed freewheel 20 cannot rotate in the opposite direction to that of the clockwise rotation, it is impossible to move, in this position, the arm 8 towards the wheel 4, while it is however possible that the arm 8 with the tool 17-19 can move away from the wheel 4 when for example the wheel is not completely round and that therefore the wheel exerts pressure on the tool .
  • the tool 17-19 can be removed entirely from the wheel 4 by rolling the arm 8 backwards, then bringing it back towards the wheel without having to start the adjustment again.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Automobile Manufacture Line, Endless Track Vehicle, Trailer (AREA)
  • Vehicle Cleaning, Maintenance, Repair, Refitting, And Outriggers (AREA)
  • Testing Of Balance (AREA)

Description

L'invention a pour objet un mécanisme qui sert à régler à distance d'une roue, l'outil d'un appareil utilisé pour poser et enlever un pneu d'automobile, ladite roue étant fixée sur une table tournante, commandée par un moteur et animée d'un mouvement de rotation de long du dit outil.The subject of the invention is a mechanism which serves to remotely adjust a wheel, the tool of an apparatus used for fitting and removing an automobile tire, said wheel being fixed on a turntable, controlled by a motor. and animated by a rotational movement along said tool.

On connaît déjà un appareil utilisé pour poser et enlever un pneu d'automobile (DE-A-2 416 668) se composant d'une colonne verticale, d'un bras horizontal qui peut se déplacer transversalement dans cette colonne et dans lequel il est placé une barre axialement déplaçable en hauteur portant à sa partie inférieure un outil pour poser en enlever le pneu. La roue est fixée sur une table tournante sous l'outil précité. Dans la colonne il est fixé une boîte dans laquelle le bras est librement monté et y peut être fixé par l'intermédiaire d'un dispositif de fixation commandé par un dispositif pneumatique.There is already known an apparatus used for fitting and removing an automobile tire (DE-A-2 416 668) consisting of a vertical column, of a horizontal arm which can move transversely in this column and in which it is placed an axially displaceable bar in height carrying at its lower part a tool to install to remove the tire. The wheel is fixed to a turntable under the aforementioned tool. In the column there is fixed a box in which the arm is freely mounted and can be fixed there by means of a fixing device controlled by a pneumatic device.

Ce dispositif présente le désavantage que pour régler l'outil à une distance désirée de la roue, tant dans un plan horizontal que dans un plan vertical, afin d'éviter un frottement entre la roue et l'outil, il faut déplacer le bras horizontal dans la boîte de la colonne, fixer ce bras et déplacer en hauteur la barre dans le bras. Il faut donc effectuer diverses manipulations. Un autre désavantage est que pour chaque nouvelle opération, il faut écarter et replacer l'outil en position de travail.This device has the disadvantage that to adjust the tool to a desired distance from the wheel, both in a horizontal plane and in a vertical plane, in order to avoid friction between the wheel and the tool, it is necessary to move the horizontal arm in the column box, fix this arm and move the bar up in the arm. Various manipulations must therefore be carried out. Another disadvantage is that for each new operation, the tool must be moved aside and replaced in the working position.

On connaît aussi un autre appareil (BE-A-852387) comportant d'une part un bras horizontal sur lequel il est monté un chariot déplaçable le long de ce bras et dans lequel il est suspendu une barre avec outil, réglable en hauteur, et d'autre part un unique moyen permettant de fixer en même temps le chariot sur le bras, de fixer la barre dans le chariot et de placer sous un certain angle la barre précitée pour placer dans deux sens l'outil à une distance prédéterminée de la roue fixée.Another apparatus is also known (BE-A-852387) comprising on the one hand a horizontal arm on which a carriage movable along this arm is mounted and in which a bar with tool is suspended, adjustable in height, and on the other hand, a single means making it possible to fix the carriage at the same time on the arm, to fix the bar in the carriage and to place the above-mentioned bar at a certain angle in order to place the tool in two directions at a predetermined distance from the wheel fixed.

En dehors du fait qu'un tel appareil est relativement compliqué et d'une construction coûteuse, il faut encore effectuer diverses manipulations pour écarter et replacer l'outil en position de travail à chaque nouvelle opération.Apart from the fact that such an apparatus is relatively complicated and of an expensive construction, it is still necessary to carry out various manipulations to move aside and return the tool to the working position with each new operation.

Le but de l'invention est de réaliser un mécanisme de construction relativement simple au moyen duquel il ne faut effectuer qu'un minimum de manipulations pour placer l'outil à la distance désirée de la roue, tant dans un plan horizontal que dans un plan vertical, afin d'éviter un frottement entre la roue et l'outil.The object of the invention is to provide a relatively simple construction mechanism by means of which only a minimum of manipulation is necessary to place the tool at the desired distance from the wheel, both in a horizontal plane and in a plane. vertical, to avoid friction between the wheel and the tool.

Conformément à la caractéristique principale de l'invention, le bras transversalement déplaçable dans la colonne verticale, est monté en déclivité vers la roue et entre le bras et la colonne verticale, il est prévu un moyen de déplacement et de fixation permettant d'une part le déplacement entièrement libre et le déplacement progressif du bras dans un sens opposé à la roue par rapport à la colonne verticale afin de régler la distance entre la roue et l'outil et d'autre part le blocage du bras dans le sens de la roue par rapport à la colonne verticale.In accordance with the main characteristic of the invention, the arm transversely displaceable in the vertical column, is mounted in slope towards the wheel and between the arm and the vertical column, there is provided a means of displacement and fixing allowing on the one hand completely free movement and progressive movement of the arm in a direction opposite to the wheel relative to the vertical column in order to adjust the distance between the wheel and the tool and on the other hand the blocking of the arm in the direction of the wheel relative to the vertical column.

Grâce au montage du bras en déclivité vers la roue et au moyen de déplacement et de fixation relativement simple, il est donc possible de régler l'outil à la distance désirée de la roue, tant dans le plan horizontal que dans le plan vertical, en effectuant un minimum de manipulations. Il n'est en outre pas nécessaire de régler chaque fois l'appareil lorsqu'il faut poser et enlever successivement plusieurs roues et pneus de mêmes dimensions.Thanks to the mounting of the arm inclined towards the wheel and by means of relatively simple displacement and fixing, it is therefore possible to adjust the tool to the desired distance from the wheel, both in the horizontal plane and in the vertical plane, in performing a minimum of manipulations. It is also not necessary to adjust the device each time when it is necessary to successively install and remove several wheels and tires of the same dimensions.

A titre d'exemple et sans que celui-ci ait un caractère limitatif quelconque, il va être donné ci-après une description détaillée d'une forme d'exécution choisie du mécanisme, conforme à l'invention. Cette description renvoie aux dessins ci-annexés dans lesquels:

  • la fig. 1 est une vue latérale du mécanisme monté sur un appareil utilisé pour poser et enlever un pneu d'automobile;
  • la fig. 2, une vue latérale agrandie du mécanisme au repos avec pièces partiellement coupées;
  • la fig. 3, une vue identique à celle de la fig. 2 mais dans laquelle le mécanisme est en position de travail.
By way of example and without this having any limiting nature, a detailed description will be given below of a chosen embodiment of the mechanism, in accordance with the invention. This description refers to the attached drawings in which:
  • fig. 1 is a side view of the mechanism mounted on an apparatus used for fitting and removing an automobile tire;
  • fig. 2, an enlarged side view of the mechanism at rest with partially cut parts;
  • fig. 3, a view identical to that of FIG. 2 but in which the mechanism is in the working position.

Dans la figure 1, on voit le bâti 1, dans lequel est logé un mécanisme de commande d'une table tournante 2 à griffes 3 pour fixer et commander la roue 4 de manière à la faire tourner. L'appareil peut être pourvu d'un dispositif bien connu 5 pour décoller le pneu. Une colonne verticale 6 est fixée sur le bâti 1. Cette colonne verticale 6 porte à la partie supérieure une boîte 7. Dans cette boîte, il est monté en déclivité vers la roue, un bras 8 axialement déplaçable, guidé entre deux galets de guidage 9 montés en diagonale et deux tenons 10 montées en diagonale. Grâce à cette disposition, le bras 8 peut être roulé dans la boîte 7 et est monté sous un angle fixe. L'extrémité du bras 8 dirigée vers la roue 4 est pourvue d'un bloc 11 dans lequel est suspendue verticalement une barre 12 avec poignée 13. Cette barre est réglable en hauteur et peut, grâce à un moyen de blocage 14 avec poignée 15, être fixée dans le bloc 11. Entre la poignée 13 et le bloc 11, il est placé un ressort de pression 16, qui équilibre le poids de la barre 12. L'outil qui sert à poser et à enlever le pneu de la roue est fixé à la partie inférieure de cette barre 12. Fait partie de cet outil, le galet de pression 17 qui est fixé sur le support 18 de la barre 12, lequel galet de pression coopère avec le talon du pneu à poser. Fait aussi partie de cet outil, le galet de guidage 19 qui sert à guider le talon du pneu hors de la circonférence de la jante de la roue lors de la pose du pneu. A l'arrière il est monté sur le bras 8 une roue libre dentée 20 qui peut tourner librement dans le sens de rotation des aiguilles d'une montre mais non dans le sens inverse. Cette roue libre dentée est montée entre deux brides 21-22 en forme de disque. Par l'intermédiaire d'un axe 23, il est monté sur la boîte 7 l'extrémité d'un segment denté 24 qui, au moyen d'une poignée 25 placée à l'autre extrémité dudit segment, peut être mis en prise avec la roue libre dentée 20. Pour des raisons de sécurité, les brides 21-22, recouvrent également la partie en prise avec la roue libre dentée 20 du segment denté 24. L'axe 23 du segment denté 24 se compose d'un boulon avec écrou et entre le segment denté et l'écrou il est prévu une rondelle de ressort qui exerce une pression sur le segment denté, de telle manière qu'on puisse placer et maintenir le segment denté dans une position désirée. Pour maintenir en équilibre le bras 8, il est placé dans la colonne verticale 6 un contrepoids 26 qui, par l'intermédiaire d'un câble 27 passant par-dessus un galet de câble 28, est fixé à un petit bloc 29 du bras 8. Le câble 27 est logé dans une rainure 30, prévue à la partie inférieure du bras 8. Le segment denté 24 est de préférence pourvu de deux butées qui coopèrent avec des parties fixes de la boîte 7 pour limiter les deux positions extrêmes de ce segment.In Figure 1, we see the frame 1, in which is housed a control mechanism of a rotary table 2 with claws 3 to fix and control the wheel 4 so as to rotate it. The device can be provided with a well-known device 5 for taking off the tire. A vertical column 6 is fixed on the frame 1. This vertical column 6 carries a box 7 at the upper part. In this box, it is mounted in slope towards the wheel, an axially displaceable arm 8, guided between two guide rollers 9 diagonally mounted and two tenons mounted diagonally. Thanks to this arrangement, the arm 8 can be rolled in the box 7 and is mounted at a fixed angle. The end of the arm 8 directed towards the wheel 4 is provided with a block 11 in which is vertically suspended a bar 12 with handle 13. This bar is adjustable in height and can, thanks to a locking means 14 with handle 15, be fixed in the block 11. Between the handle 13 and the block 11, a pressure spring 16 is placed, which balances the weight of the bar 12. The tool which is used to install and remove the tire from the wheel is fixed to the lower part of this bar 12. Part of this tool, the pressure roller 17 which is fixed on the support 18 of the bar 12, which pressure roller cooperates with the bead of the tire to be laid. Also forming part of this tool, the guide roller 19 which is used to guide the bead of the tire outside the circumference of the rim of the wheel during the fitting of the tire. At the rear there is mounted on the arm 8 a toothed freewheel 20 which can rotate freely in the direction of rotation of the needles of a watch but not in the opposite direction. This freewheel is mounted between two flanges 21-22 in the form of a disc. Via a pin 23, it is mounted on the box 7 the end of a toothed segment 24 which, by means of a handle 25 placed at the other end of said segment, can be engaged with the toothed freewheel 20. For safety reasons, the flanges 21-22 , also cover the part engaged with the toothed freewheel 20 of the toothed segment 24. The axis 23 of the toothed segment 24 consists of a bolt with nut and between the toothed segment and the nut there is provided a spring washer which exerts pressure on the toothed segment, so that the toothed segment can be placed and maintained in a desired position. To keep the arm 8 in balance, a counterweight 26 is placed in the vertical column 6 which, by means of a cable 27 passing over a cable roller 28, is fixed to a small block 29 of the arm 8 The cable 27 is housed in a groove 30, provided in the lower part of the arm 8. The toothed segment 24 is preferably provided with two stops which cooperate with fixed parts of the box 7 to limit the two extreme positions of this segment .

Pour poser un pneu sur une roue, on roule le bras 8 vers l'arrière dans la boîte 7, cela de telle manière que l'outil 17-19 qui sert à poser ou enlever le pneu, soit à distance de la table tournante 2 pour fixer la roue (fig. 2). On fait pivoter sur son axe 23 le segment denté 24 en position extrême vers l'avant (fig. 2). On pose une roue 4 entre les griffes 3 de la table tournante 2 et on fixe la roue à cette table tournante qui peut être d'un type quelconque. On pose ensuite un pneu obliquement sur la roue de la manière bien connue. Alors à l'aide de la poignée 13 de la barre 12, on roule le bras 8 vers la roue 4 et on débloque la barre 12 par la poignée 15 pour faire descendre l'outil 17-19, cela jusqu'à ce que le bord supérieur extrême de la roue se trouve en contact avec l'outil dans l'angle formé entre le galet de pression 17 et son support 18. Puis on fixe par la poignée 15, la barre. 12 dans cette position. Par la position oblique du bras 8, le moindre déplacement de celui-ci en direction opposée à la roue donne automatiquement un dégagement de l'outil 17-19 tant dans le plan vertical que dans le plan horizontal, par rapport à la roue 4. Pour placer le galet de pression 17 et le galet de guidage 19 à la distance désirée de la roue, de telle manière qu'il n'y ait aucun frottement entre la roue 4 et l'outil 17-19, on fait pivoter autour de l'axe 23 vers la roue libre dentée 20, le segment denté 24, cela de telle manière que ces deux organes soient en prise l'un avec l'autre. En continuant à faire pivoter le segment denté 24, la roue libre dentée 20 tourne dans le sens de rotation des aiguilles d'une montre et le bras 8 se déplace et cela jusqu'à ce que l'outil 17-19 occupe, par rapport à la roue, la position désirée (fig. 3). Par le fait que la roue libre dentée 20 ne peut pas tourner dans le sens opposé à celui de la rotation des aiguilles d'une montre, il est impossible de déplacer, dans cette position, le bras 8 vers la roue 4, tandis qu'il est toutefois possible que le bras 8 avec l'outil 17-19 puisse s'éloigner de la roue 4 lorsque par exemple la roue n'est pas tout à fait ronde et que de ce fait la roue exerce une pression sur l'outil. De même on peut écarter entièrement l'outil 17-19 de la roue 4 en faisant rouler le bras 8 vers l'arrière, puis le ramener vers la roue sans devoir recommencer le réglage. Lorsque le talon du pneu est posé sous le galet de pression 17 et tout contre le galet de guidage 19, la table tournante 2 qui maintient fermement la roue est mise en marche, cela de telle manière que la roue commandée soit animée d'un mouvement de rotation et que le pneu soit entièrement posé sur la roue, cela sans que l'outil de montage ou l'outil de démontage vienne en contact avec la roue.To put a tire on a wheel, the arm 8 is rolled backwards in the box 7, in such a way that the tool 17-19 which is used to install or remove the tire, is at a distance from the turntable 2 to fix the wheel (fig. 2). The toothed segment 24 is pivoted on its axis 23 in the extreme forward position (fig. 2). A wheel 4 is placed between the claws 3 of the rotary table 2 and the wheel is fixed to this rotary table which may be of any type. A tire is then laid obliquely on the wheel in the well known manner. Then using the handle 13 of the bar 12, the arm 8 is rolled towards the wheel 4 and the bar 12 is released by the handle 15 to lower the tool 17-19, until the extreme upper edge of the wheel is in contact with the tool in the angle formed between the pressure roller 17 and its support 18. Then the bar is fixed by the handle 15. 12 in this position. By the oblique position of the arm 8, the slightest displacement of the latter in the direction opposite to the wheel automatically gives a clearance of the tool 17-19 both in the vertical plane and in the horizontal plane, relative to the wheel 4. To place the pressure roller 17 and the guide roller 19 at the desired distance from the wheel, so that there is no friction between the wheel 4 and the tool 17-19, we rotate around the axis 23 towards the freewheel 20, the toothed segment 24, this in such a way that these two members are engaged with each other. Continuing to rotate the toothed segment 24, the freewheel 20 rotates clockwise and the arm 8 moves and this until the tool 17-19 occupies, relative at the wheel, the desired position (fig. 3). By the fact that the toothed freewheel 20 cannot rotate in the opposite direction to that of the clockwise rotation, it is impossible to move, in this position, the arm 8 towards the wheel 4, while it is however possible that the arm 8 with the tool 17-19 can move away from the wheel 4 when for example the wheel is not completely round and that therefore the wheel exerts pressure on the tool . Likewise, the tool 17-19 can be removed entirely from the wheel 4 by rolling the arm 8 backwards, then bringing it back towards the wheel without having to start the adjustment again. When the bead of the tire is placed under the pressure roller 17 and all against the guide roller 19, the turntable 2 which firmly holds the wheel is started, so that the driven wheel is driven of rotation and that the tire is placed entirely on the wheel, this without the mounting tool or the removal tool coming into contact with the wheel.

Il va sans dire, que le montage des pièces l'une par rapport à l'autre, la forme et les dimensions des pièces ici décrites peuvent varier et que les pièces même ici déterminées, peuvent être remplacées par d'autres poursuivant le même but.It goes without saying, that the mounting of the pieces relative to each other, the shape and dimensions of the pieces described here may vary and that the pieces even here determined, can be replaced by others pursuing the same goal .

Claims (6)

1. Mechanism for adjusting the distance between a wheel (4) fixed upon a turntable (2) and the tool (17-19) of an apparatus for fitting and removing an automobile tire, which mechanism mainly consists of a vertical column (6), an arm (8) which can be moved transversely and fixed in aforesaid column and in which is fitted a bar (12) which can be axially adjusted in height and which, at its lower end, carries the tool (17-19) for fitting and removing the tire, mechanism which is characterized by the fact that the arm (8) is fitted at a downward slant towards the wheel (4) and that a means (20 to 25) is provided between the arm (8) and the vertical column (6) for moving and fixing, which on the one hand permits the totally free and gradual movement of the arm (8) in a direction opposite to that of the wheel (4) with respect to the vertical column (6) in order to adjust the distance between the wheel (4) and the tool (17-19), and on the other hand provides for the blockage of the arm (8) in the direction towards the wheel (4) with respect to the vertical column (6).
2. Mechanism according to claim 1, characterized by the fact that the means for moving and fixing (20 to 25) in view of moving and fixing the arm (8), is made up of a toothed freewheel (20) fitted on the arm, which can rotate freely in clockwise direction and is blocked in the other direction, cooperating with a toothed segment (24) provided with a handle (25), and which can pivot around a shaft (23) which is fitted on the fixed part of the apparatus.
3. Mechanism according to claim 2, characterized by the fact that the toothed segment (24) cooperates with a clamping means in order to maintain the toothed segment in any desired position.
4. Mechanism according to claim 2, characterized by the fact that the toothed freewheel (20) is located between two flanges (21-22) in disc shape, which flanges also cover the meshing portion of the toothed segment (24) with the toothed freewheel.
5. Mechanism according to claim 1, characterized by the fact that in order to maintain the inclined arm (8) in balance, a counterweight (26) is located within the vertical column (6) and is linked to the arm (8) by means of a cable (27) which passes over a cable roller.(28) provided in the vertical column (6).
6. Mechanism according to claim 1, characterized by the fact that the arm (8), which can move axially, is guided by at least two guide rollers (9) fitted diagonally in the vertical column (6).
EP78200118A 1977-08-10 1978-07-26 Mechanism for adjusting the tool of a tyre mounting and demounting apparatus. Expired EP0000799B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
BE2056145 1977-08-10
BE2056145A BE857631A (en) 1977-08-10 1977-08-10 MECHANISM FOR ADJUSTING THE TOOL OF A DEVICE USED TO INSTALL AND REMOVE A MOTOR VEHICLE TIRE
BE857631 1977-08-10

Publications (2)

Publication Number Publication Date
EP0000799A1 EP0000799A1 (en) 1979-02-21
EP0000799B1 true EP0000799B1 (en) 1981-01-07

Family

ID=25658291

Family Applications (1)

Application Number Title Priority Date Filing Date
EP78200118A Expired EP0000799B1 (en) 1977-08-10 1978-07-26 Mechanism for adjusting the tool of a tyre mounting and demounting apparatus.

Country Status (6)

Country Link
US (1) US4209053A (en)
EP (1) EP0000799B1 (en)
JP (1) JPS5464304A (en)
BE (1) BE857631A (en)
CA (1) CA1093454A (en)
ES (1) ES472494A1 (en)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USD280827S (en) 1983-12-19 1985-10-01 Ammco Tools, Inc. Tire changer
US4884611A (en) * 1988-10-24 1989-12-05 Schmidt Raymond H Tire changing machine
US5050659A (en) * 1990-04-27 1991-09-24 G. S. S.R.L. Machine for the removal and replacement of tires for the wheels of automobiles
IT1262836B (en) * 1993-09-09 1996-07-04 Giuliano Vignoli PNEUMATIC OPERATED TIRE CHANGER MACHINE.
US6182736B1 (en) * 1998-06-15 2001-02-06 Hennessy Industries, Inc. Helper arm for a rim holding tire changer
JP3626088B2 (en) * 2000-11-09 2005-03-02 小野谷機工株式会社 Automobile tire removing method and tire removing device
ITVR20050043A1 (en) * 2005-04-07 2006-10-08 Butler Eng & Marketing TIRE ASSEMBLY MACHINE WITH TIPPING ASSEMBLY / DISASSEMBLY TOOL
US7343955B2 (en) 2005-12-28 2008-03-18 Hennessy Industries, Inc. Tire changing machine
US7438109B2 (en) * 2005-12-30 2008-10-21 Hennessy Industries, Inc. Tire changer
IT1393290B1 (en) * 2008-09-08 2012-04-20 M&B Engineering S R L TIRE ASSEMBLY AND DISASSEMBLY
IT1402588B1 (en) * 2010-11-02 2013-09-13 Teco Srl ORIENTATION DEVICE FOR A WORKING TOOL IN A TIRE CHANGER MACHINE
RU2015102925A (en) * 2014-02-07 2016-08-20 СИКАМ С.р.л. TIRE CHANGER
US9827817B2 (en) * 2014-05-07 2017-11-28 Gino Ferrari Tire changing machine
US11001108B2 (en) * 2014-05-30 2021-05-11 Snap-On Equipment Srl A Unico Socio Mounting/demounting tool unit with preloaded tool

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE484405A (en) *
US1498299A (en) * 1919-03-12 1924-06-17 Willys Overland Co Machine for placing tires upon wheel rims
US2816604A (en) * 1956-01-23 1957-12-17 Airway Products Inc Circumferentially travelling shoe type tire mounting head for conveyor-supported wheels
CH346123A (en) * 1957-03-08 1960-04-30 Polyprodukte Ag Device for fitting and removing tires from motor vehicles
GB1064527A (en) * 1964-09-14 1967-04-05 Polyprodukte Ag Improvements in devices for fitting and removing vehicle wheel tyres
US3493030A (en) * 1967-08-18 1970-02-03 Coats Co Inc The Tire changing stand with rotatable rim gripping table
BE764970A (en) * 1971-03-30 1971-08-16 Duquesne Victor DEVICE FOR MOUNTING AND DISMANTLING THE TIRES EQUIPPING THE WHEELS OF MOTOR VEHICLES.

Also Published As

Publication number Publication date
JPS6230921B2 (en) 1987-07-06
US4209053A (en) 1980-06-24
ES472494A1 (en) 1979-02-16
CA1093454A (en) 1981-01-13
JPS5464304A (en) 1979-05-24
EP0000799A1 (en) 1979-02-21
BE857631A (en) 1978-02-10

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