EP1551563A1 - Transmission device and application to a metering device - Google Patents

Transmission device and application to a metering device

Info

Publication number
EP1551563A1
EP1551563A1 EP03776963A EP03776963A EP1551563A1 EP 1551563 A1 EP1551563 A1 EP 1551563A1 EP 03776963 A EP03776963 A EP 03776963A EP 03776963 A EP03776963 A EP 03776963A EP 1551563 A1 EP1551563 A1 EP 1551563A1
Authority
EP
European Patent Office
Prior art keywords
wheel
axis
rotation
drive
actuator
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.)
Withdrawn
Application number
EP03776963A
Other languages
German (de)
French (fr)
Inventor
Geneviève GUERIN-SCHMITT
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Advanced Automation SRL
Original Assignee
Advanced Automation SRL
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Advanced Automation SRL filed Critical Advanced Automation SRL
Publication of EP1551563A1 publication Critical patent/EP1551563A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C17/00—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces
    • B05C17/005—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces for discharging material from a reservoir or container located in or on the hand tool through an outlet orifice by pressure without using surface contacting members like pads or brushes
    • B05C17/01—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces for discharging material from a reservoir or container located in or on the hand tool through an outlet orifice by pressure without using surface contacting members like pads or brushes with manually mechanically or electrically actuated piston or the like
    • B05C17/0116—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces for discharging material from a reservoir or container located in or on the hand tool through an outlet orifice by pressure without using surface contacting members like pads or brushes with manually mechanically or electrically actuated piston or the like characterised by the piston driving means
    • B05C17/012—Stepwise advancing mechanism, e.g. pawl and ratchets
    • B05C17/0123—Lever actuated
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H31/00—Other gearings with freewheeling members or other intermittently driving members
    • F16H31/003—Step-by-step mechanisms for rotary motion
    • F16H31/006—Step-by-step mechanisms for rotary motion with friction means
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F11/00—Apparatus requiring external operation adapted at each repeated and identical operation to measure and separate a predetermined volume of fluid or fluent solid material from a supply or container, without regard to weight, and to deliver it
    • G01F11/02—Apparatus requiring external operation adapted at each repeated and identical operation to measure and separate a predetermined volume of fluid or fluent solid material from a supply or container, without regard to weight, and to deliver it with measuring chambers which expand or contract during measurement
    • G01F11/021—Apparatus requiring external operation adapted at each repeated and identical operation to measure and separate a predetermined volume of fluid or fluent solid material from a supply or container, without regard to weight, and to deliver it with measuring chambers which expand or contract during measurement of the piston type
    • G01F11/025—Apparatus requiring external operation adapted at each repeated and identical operation to measure and separate a predetermined volume of fluid or fluent solid material from a supply or container, without regard to weight, and to deliver it with measuring chambers which expand or contract during measurement of the piston type with manually operated pistons
    • G01F11/026—Apparatus requiring external operation adapted at each repeated and identical operation to measure and separate a predetermined volume of fluid or fluent solid material from a supply or container, without regard to weight, and to deliver it with measuring chambers which expand or contract during measurement of the piston type with manually operated pistons of the gun type
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/15—Intermittent grip type mechanical movement
    • Y10T74/1526—Oscillation or reciprocation to intermittent unidirectional motion
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/15—Intermittent grip type mechanical movement
    • Y10T74/1526—Oscillation or reciprocation to intermittent unidirectional motion
    • Y10T74/1532—Rack actuator

Definitions

  • TITLE Transmission device and application to a metering device.
  • the present invention relates to a device for transforming an oscillating movement into a unidirectional, rotary and / or linear movement, as well as its application to a device for dispensing controlled doses of a finishing product in particular.
  • the prior art is known as snap-fastening systems in which a pawl, for example secured to a swinging arm, meshes on a pinion when the arm is moved in one direction and drives the pinion when the arm is moved in the other direction.
  • the transmission of the movement is therefore carried out mainly thanks to the cooperation between the pawl and the teeth of the pinion.
  • a pinion has a finite number of teeth, each of which corresponds to a potential drive point. Therefore, as long as the pawl has not passed from one tooth to the next, the device has a certain play and it does not operate with maximum efficiency from the first motor movement of the swing arm.
  • devices for distributing finishing products such as putty guns are known, in particular for applying a finishing product to a determined area.
  • a reservoir provided with a piston which generally is set in motion in the reservoir by means of a spring system connected to a trigger.
  • spring system connected to a trigger.
  • such systems have a certain inertia, in particular due to the use of springs to set said piston in motion.
  • such systems do not allow precise control of the dose of product applied or its speed of exit from said reservoir.
  • the object of the present invention is to provide a transmission device as well as a device for dispensing controlled doses, implementing such a transmission device, which overcomes the aforementioned drawbacks.
  • an object of the present invention is to provide a transmission device for transforming an oscillating movement into a unidirectional, rotary and / or linear movement, which does not present any play.
  • a transmission device for transforming an oscillating movement into a unidirectional, rotary and / or linear movement, which does not present any play.
  • such a device will have an increased transmission efficiency with respect to transmission devices known elsewhere.
  • Another object of the present invention is to provide a device for dispensing doses of a liquid, viscous or pasty material, such as a finishing product using such a transmission device, making it possible to precisely control the quantity of material applied.
  • Another object of the present invention is to provide a device for dispensing an optimal dose of material to be applied, this dose being sufficient to ensure that the desired effect is obtained without it being necessary subsequently to clean up any burrs .
  • the present invention relates first of all to a transmission device for transforming at least one oscillating movement into a unidirectional rotary movement comprising: - an actuator oscillating around an axis of oscillation, between two positions, in a first direction, called d drive, and in a second direction, called back, opposite to said drive direction,
  • the present invention also relates to a transmission device for transforming an oscillating movement into a unidirectional linear movement using a transmission device to transform an oscillating movement into a unidirectional rotary movement, in which a pinion cooperates with the axis of rotation of said axis. wheel on the one hand, and on the other hand meshes with a rack.
  • the present invention also relates to a device for distributing controlled doses of a liquid, pasty or viscous material, in particular a sealant, using a transmission device capable of transforming an oscillating movement into a unidirectional linear movement.
  • FIG. 1 is an exploded perspective view of a transmission device according to the invention
  • FIG. 2 is a perspective view of the device of FIG. 1, the parts being assembled
  • FIGS. 3 to 6 respectively are front, right, rear and left projections of the device illustrated in FIG. 2,
  • FIG. 7 is an enlarged view of the transmission device illustrated in FIG. 6, the cover of the housing being removed,
  • FIGS. 8, 9 and 10 are projections respectively from below, along the edge, and from above, illustrating the drive and blocking means of the invention
  • FIG. 11 is a view of disengageable means used in a device for transforming a unidirectional rotary movement into a unidirectional linear movement
  • FIG. 12 illustrates a device for distributing controlled doses of a liquid, pasty or viscous material, in accordance with the invention
  • FIG. 13 shows schematically a device for fixing fastening elements provided with a distribution device according to the invention.
  • the present invention relates to a transmission device for transforming at least one oscillating movement into a unidirectional rotary movement.
  • such a transmission device comprises an actuator 1 oscillating around an oscillation axis 2.
  • This device can oscillate between two positions, in particular extreme high and low positions. For example, it can oscillate in a first direction illustrated by arrow 3, from top to bottom, and in a second opposite direction.
  • the device also includes a wheel 4 provided with a rotation axis 5.
  • the transmission device further comprises:
  • Said drive means 6 are subject to said actuator 1 and are capable of driving said wheel 4 in a first direction known as before, illustrated by the arrow 7.
  • Said locking means 8 are capable of preventing said wheel 4 from entering into rotation in a second direction, called rear, opposite to said front direction 7.
  • said wheel 4, said drive means 6 and said blocking means 8 are assembled inside a housing 9 which protects and maintains them in their respective positions, as illustrated in FIGS. 2 to 6.
  • Said housing 9 is provided with a cover 10 which, once removed, as shown in FIG. 7, allows access to the mechanism of the transmission device.
  • said housing 9 can serve as a support for the axis of rotation 2 of said wheel. It is also provided at the rear with an opening 11 to allow the oscillating movements of the actuator 1.
  • the locking means 8 of said wheel 4 keeps a fixed position relative to said housing 9.
  • Said actuator 1 can be in the form of a lever 1, one end 12 of which is articulated to the axis of rotation 5 of said wheel 4.
  • said wheel 4 has a smooth edge 13.
  • the drive means 6 and the locking means 8 cooperate with said edge 13 of the wheel 4.
  • the drive means are in the form of an eccentric 14 secured to said lever 1 at its axis of rotation by a axis 15.
  • the distance between the axis of rotation of the drive eccentric 14 and the axis of rotation 5 of said wheel remains constant.
  • said locking means 8 are in the form of a locking eccentric 16 whose axis of rotation, materialized by an axis 17, remains at constant distance from the axis of rotation 5 of said wheel 4 .
  • the operating principle of the locking eccentric 16 is similar to that of the eccentric of the drive 14. As we have seen that the locking means 8 remain fixed relative to the housing 9, when said locking eccentric 16 is braced against the wheel 4, it prevents the latter from rotating. This is the case that occurs when the lever 1 moves in the return direction.
  • the operating cycle of the transmission device is therefore as follows: when the lever 1 moves in the drive direction 3, the drive eccentric 14 is braced against said wheel 4 while the locking eccentric 16 undergoes a slight rotation which places it in a “free wheel” relative to said wheel 4.
  • the drive eccentric 14 can drive the wheel 4 in rotation, in the forward direction 7.
  • the lever 1 will therefore be able to return freely to its initial position while the locking means 8 prevent the wheel 4 from rotating in the rear direction.
  • said drive eccentrics
  • said lever 1 is provided with a lug 20 in which is provided a notch 21 where said spring 18 is housed.
  • Said notch 21 makes it possible to hold and guide said spring 18.
  • Said spring 18 acts on said flat of said drive eccentric 14 and thus ensures constant contact between said drive eccentric 14 and said wheel 4.
  • the locking means 8 it is advantageous to provide a bent arm 22, one end 23 of which cooperates with the axis of rotation 5 of said wheel 4, and the other end 24 is integral with said housing 9.
  • a notch 25 is provided in which said spring 19 is housed, capable of cooperating with the flat part of the locking eccentric 16.
  • said notch 25 makes it possible to hold and guide said spring 19.
  • said drive eccentrics 14 and blocking 16 have an eccentricity of a few tenths of a millimeter, in particular 3/10 of a millimeter for a diameter of 6 mm.
  • FIG. 7 shows, in an exaggerated manner, on the one hand the axis of rotation of said eccentrics 14, 16, materialized by axes 15, 17 respectively, and on the other hand the center 50, 51 of the circle in which said eccentric 14, 16 is written.
  • Eccentricity is defined as the distance between the axis of rotation of the eccentric and the center of said circle.
  • the position of said center 50, 51 relative to said contact generator 52, 53 changes.
  • the amplitude of the contact angle 54, 55 can therefore vary when said eccentric 14, 16 is braced against said wheel 4, the contact angle 54, 55 has a minimum value, called the pressure angle.
  • said lever 1 can be subjected to control means, by means of a cleat 26.
  • the control means advantageously describe a reciprocating movement, in the sense that the path followed by said means of control, in space, remains the same from one operating cycle to the next.
  • said cleat 26 can be positioned along said lever 1, at a variable distance from the axis of oscillation 2 of said lever 1 or from rotation 5 of said wheel 4. This arrangement allows a variable transmission coefficient of the reciprocating movement of the means of control to the transmission device according to the invention.
  • the present application also relates to a transmission device for transforming an oscillating movement into a unidirectional linear movement, implementing a transmission device, as mentioned above to transform an oscillating movement into a unidirectional rotary movement and further comprising a pinion 27 cooperating with the axis of rotation 5 of said wheel 4 on the one hand and on the other hand, meshing with a rack 28.
  • a transmission device for transforming an oscillating movement into a unidirectional linear movement
  • a transmission device as mentioned above to transform an oscillating movement into a unidirectional rotary movement and further comprising a pinion 27 cooperating with the axis of rotation 5 of said wheel 4 on the one hand and on the other hand, meshing with a rack 28.
  • disengagement means are provided to make said pinion 27 free relative to the axis of rotation 5 of said wheel 4 and to be able to return said rack 28 to its initial position by driving it in the opposite direction to its direction. normal displacement.
  • Said pinion 27 is mounted on a shaft 31, the end of which is provided with a through hole in which a pin 32 is housed. Said pin 32 cooperates with a diametrical groove 30 at the end of the pinion 27. Thus, when said pin 32 is engaged in said groove 30, the rotation of the shaft 31 causes the pinion 27 to rotate.
  • a tube 34 integral with the wheel 4 at its axis of rotation 5.
  • the length of the tube 34 is at least equal to one and a half times the diameter of the pin 32 placed at the end of the shaft 31 of the pinion 27.
  • the inside diameter of said tube 34 is equal to that of the shaft
  • the wall of said tube 34 is provided with two longitudinal notches 35, diametrically opposite, capable of cooperating with said pin.
  • a disengaging spring 33 is placed at the bottom of said tube 34, so that in the engaged position, said disengaging spring presses on said pin 32 so that it cooperates with said groove 30 of the pinion 27.
  • the length of the shaft 31 is provided sufficient for said shaft 31 to protrude from said housing 9, at a disengagement button 36.
  • a transmission device for transforming an oscillating movement into a linear or rotary unidirectional movement is irreversible. Indeed, due to the presence of the locking means 8, and since the lever 1 can oscillate independently of the rotation of the wheel 4, it is not possible to transform a unidirectional rotary movement printed on said wheel 4 into an oscillating movement of the lever 1.
  • the present invention also relates to a device for distributing controlled doses of a liquid, pasty or viscous material such as a finishing product, in particular a sealing product, using a transmission device to transform an oscillating movement into a unidirectional linear movement, said dispensing device further comprising a reservoir 37 capable of containing said material, said rack 28 cooperating with means 39 for emptying said reservoir 37 dose by dose.
  • said reservoir 37 is in the form of a cartridge or a syringe provided with a dispensing nozzle 40 and a piston which constitute said means 39 for empty said tank 37.
  • a predetermined dose of the finishing product can be dispensed.
  • the box 9 is provided with a front cover 41, the lower part of which, the rack 28 opens, has a substantially circular notch 42.
  • said reservoir 37 is provided at its end opposite to the dispensing nozzle 40, with fins 43.
  • Said circular notch 42 is provided capable of receiving said fins 43 of the reservoir 37. It therefore serves as means for holding said reservoir. In addition, this allows the cartridge 37 used to be changed very easily. Once a cartridge 37 has been emptied, it suffices to disengage the pinion 27 of the wheel 4 by pressing the disengaging button 36, to return the rack 28 to its initial position, then to remove the emptied cartridge 37 by sliding it out of the retaining notch 42 before installing a new cartridge 37.
  • a device for metering a finishing material in a device 44 for fitting fastening elements, for example riveting.
  • a device for fitting fastening elements is described in patent documents FR-01/07822 and FR-02/07322. These mechanisms have in particular a loading device 45 which brings the ends of a means 46 for supplying the fixing element from a fixing element to a means 47 for fitting the fixing element.
  • the loading means 45 tilt with a constant amplitude around its tilting axis 48.
  • a metering device according to the invention at a fixed point relative to the loading means 45 briefly described.
  • said lever 1 can be secured to said loading device 45, by means of a cleat 26.
  • the tilting movement of the loading device can be transmitted said lever 1, thus ensuring the operation of the metering device.
  • the aim being to bring a controlled dose of a finishing material to the level of the fixing means, there is provided between the nozzle 40 of the cartridge 37 and the means for holding the loading means a flexible pipe in which can circulating said liquid, pasty or viscous, finishing material.

Abstract

The invention concerns a transmission device for transforming at least an oscillating motion into a rotational one-way linear movement comprising: an actuator (1) oscillating about an axis of oscillation, between two positions, in a first so-called driving direction (3), and in a second so-called reverse direction, opposite said driving direction (3); a wheel (4) provided with an axis of rotation, the axis of oscillation of said actuator (1) and the axis of rotation of said wheel (4) merging; means for butt driving (6) said wheel (4), secured to said actuator, capable of driving said wheel (4) in a first so-called forward direction (7); means for butt locking (6) said wheel (4), capable of preventing said wheel (4) from rotating. The invention also concerns a device dispensing controlled doses of a liquid, pasty or viscous substance, in particular a sealing product, using such a transmission device.

Description

TITRE : Dispositif de transmission et application à un dispositif de dosage.TITLE: Transmission device and application to a metering device.
La présente invention concerne un dispositif pour transformer un mouvement oscillant en un mouvement unidirectionnel, rotatif et/ou linéaire, ainsi que son application à un dispositif de distribution de doses contrôlées d'un produit de finition notammentThe present invention relates to a device for transforming an oscillating movement into a unidirectional, rotary and / or linear movement, as well as its application to a device for dispensing controlled doses of a finishing product in particular.
Pour transformer un mouvement oscillant ou un mouvement unidirectionnel rotatif, on connaît de l'état de la technique des systèmes d'encliquetage dans lesquels un cliquet, par exemple solidaire d'un bras oscillant, vient engrener sur un pignon lorsqu'on déplace le bras dans un sens et entraîne le pignon lorsqu'on déplace le bras dans l'autre sens. La transmission du mouvement est donc réalisée principalement grâce à la coopération entre le cliquet et les dents du pignon.To transform an oscillating movement or a unidirectional rotary movement, the prior art is known as snap-fastening systems in which a pawl, for example secured to a swinging arm, meshes on a pinion when the arm is moved in one direction and drives the pinion when the arm is moved in the other direction. The transmission of the movement is therefore carried out mainly thanks to the cooperation between the pawl and the teeth of the pinion.
Or un pignon présente un nombre fini de dents, qui correspondent chacune à un point d'entraînement potentiel. De ce fait, tant que le cliquet n'est pas passé d'une dent à la suivante, le dispositif présente un certain jeu et il ne fonctionne pas avec un maximum d'efficacité dès le premier mouvement moteur du bras oscillant.A pinion has a finite number of teeth, each of which corresponds to a potential drive point. Therefore, as long as the pawl has not passed from one tooth to the next, the device has a certain play and it does not operate with maximum efficiency from the first motor movement of the swing arm.
Par ailleurs, on connaît des dispositifs de distribution de produits de finition tels que les pistolets à mastic, pour appliquer notamment un produit de finition à une zone déterminée. Dans de tels dispositifs, on trouve un réservoir muni d'un piston qui généralement, est mis en mouvement dans le réservoir grâce à un système de ressort relié à une gâchette. Cependant, de tels systèmes présentent une certaine inertie, notamment du fait de l'utilisation de ressorts pour mettre en mouvement ledit piston. Ainsi, de tels systèmes ne permettent pas de contrôler précisément la dose de produit appliqué ni sa vitesse de sortie dudit réservoir.Furthermore, devices for distributing finishing products such as putty guns are known, in particular for applying a finishing product to a determined area. In such devices, there is a reservoir provided with a piston which generally is set in motion in the reservoir by means of a spring system connected to a trigger. However, such systems have a certain inertia, in particular due to the use of springs to set said piston in motion. Thus, such systems do not allow precise control of the dose of product applied or its speed of exit from said reservoir.
Il existe en effet une période transitoire, relativement longue par rapport à la durée de distribution du produit, au cours de laquelle la vitesse de distribution du produit va augmenter avant de se stabiliser. De plus, de tels dispositifs de distribution entraînent des pertes du produit appliqué puisque généralement la dose distribuée est largement supérieure à celle qui est véritablement nécessaire. Ces dispositifs ne permettent pas d'éviter des bavures qu'il faudra donc ultérieurement nettoyer.There is indeed a transitional period, relatively long compared to the duration of distribution of the product, during which the speed of distribution of the product will increase before stabilizing. In addition, such dispensing devices cause losses of the applied product since generally the dispensed dose is largely greater than that which is truly necessary. These devices do not prevent burrs which must therefore be cleaned later.
Le but de la présente invention est de proposer un dispositif de transmission ainsi qu'un dispositif de distribution de doses contrôlées, mettant en œuvre un tel dispositif de transmission, qui pallient les inconvénients précités. En particulier, un but de la présente invention est de fournir un dispositif de transmission pour transformer un mouvement oscillant en un mouvement unidirectionnel, rotatif et/ou linéaire, qui ne présente pas de jeu. Ainsi, un tel dispositif présentera une efficacité de transmission accrue par rapport à des dispositifs de transmission connus par ailleurs.The object of the present invention is to provide a transmission device as well as a device for dispensing controlled doses, implementing such a transmission device, which overcomes the aforementioned drawbacks. In particular, an object of the present invention is to provide a transmission device for transforming an oscillating movement into a unidirectional, rotary and / or linear movement, which does not present any play. Thus, such a device will have an increased transmission efficiency with respect to transmission devices known elsewhere.
Un autre but de la présente invention est de proposer un dispositif de distribution de doses d'un matériau liquide, visqueux ou pâteux, tel qu'un produit de finition mettant en œuvre un tel dispositif de transmission, permettant de contrôler précisément la quantité de matériau appliqué. Un autre but de la présente invention est de fournir un dispositif pour distribuer une dose optimale de matériau à appliquer, cette dose étant suffisante pour s'assurer que l'effet recherché est obtenu sans qu'il soit nécessaire ultérieurement de nettoyer d'éventuelles bavures.Another object of the present invention is to provide a device for dispensing doses of a liquid, viscous or pasty material, such as a finishing product using such a transmission device, making it possible to precisely control the quantity of material applied. Another object of the present invention is to provide a device for dispensing an optimal dose of material to be applied, this dose being sufficient to ensure that the desired effect is obtained without it being necessary subsequently to clean up any burrs .
D'autres buts et avantages de la présente invention apparaîtront au cours de la description qui va suivre, qui n'est donnée qu'à titre indicatif et qui n'a pas pour but de la limiter.Other objects and advantages of the present invention will emerge during the description which follows, which is given for information only and which is not intended to limit it.
La présente invention concerne tout d'abord un dispositif de transmission pour transformer au moins un mouvement oscillant en un mouvement rotatif unidirectionnel comprenant : - un actionneur oscillant autour d'un axe d'oscillation, entre deux positions, dans un premier sens, dit d'entraînement, et dans un second sens, dit de retour, opposé audit sens d'entraînement,The present invention relates first of all to a transmission device for transforming at least one oscillating movement into a unidirectional rotary movement comprising: - an actuator oscillating around an axis of oscillation, between two positions, in a first direction, called d drive, and in a second direction, called back, opposite to said drive direction,
- une roue munie d'un axe de rotation, l'axe d'oscillation 2 dudit actionneur 1 et l'axe de rotation de ladite roue 4 étant confondus, - des moyens d'entraînement de ladite roue par arc-boutement assujettis audit actionneur, aptes à entraîner ladite roue dans un premier sens, dit avant,- a wheel provided with an axis of rotation, the axis of oscillation 2 of said actuator 1 and the axis of rotation of said wheel 4 being combined, - means for driving said wheel by bracing subject to said actuator , able to drive said wheel in a first direction, said before,
- des moyens de blocage de ladite roue par arc-boutement, aptes à interdire à ladite roue d'entrer en rotation dans un second sens, dit arrière, opposé audit sens avant. La présente invention concerne également un dispositif de transmission pour transformer un mouvement oscillant en un mouvement linéaire unidirectionnel mettant en œuvre un dispositif de transmission pour transformer un mouvement oscillant en un mouvement rotatif unidirectionnel, dans lequel un pignon coopère avec l'axe de rotation de ladite roue d'une part, et d'autre part engrène avec une crémaillère.- Means for blocking said wheel by bracing, capable of preventing said wheel from rotating in a second direction, called rear, opposite to said front direction. The present invention also relates to a transmission device for transforming an oscillating movement into a unidirectional linear movement using a transmission device to transform an oscillating movement into a unidirectional rotary movement, in which a pinion cooperates with the axis of rotation of said axis. wheel on the one hand, and on the other hand meshes with a rack.
La présente invention concerne aussi un dispositif de distribution de doses contrôlées d'un matériau liquide, pâteux ou visqueux, notamment un produit d'étanchéité, mettant en œuvre un dispositif de transmission apte à transformer un mouvement oscillant en un mouvement linéaire unidirectionnel.The present invention also relates to a device for distributing controlled doses of a liquid, pasty or viscous material, in particular a sealant, using a transmission device capable of transforming an oscillating movement into a unidirectional linear movement.
L'invention sera mieux comprise à la lecture de la description, accompagnée des dessins en annexe, parmi lesquels :The invention will be better understood on reading the description, accompanied by the accompanying drawings, among which:
- la figure 1 est une vue en perspective éclatée d'un dispositif de transmission conforme à l'invention, - la figure 2 est une vue en perspective du dispositif de la figure 1 , les pièces étant assemblées,FIG. 1 is an exploded perspective view of a transmission device according to the invention, FIG. 2 is a perspective view of the device of FIG. 1, the parts being assembled,
- les figures 3 à 6 respectivement sont des projections avant, droite, arrière et gauche du dispositif illustré à la figure 2,FIGS. 3 to 6 respectively are front, right, rear and left projections of the device illustrated in FIG. 2,
- la figure 7 est une vue agrandie du dispositif de transmission illustré à la figure 6, le couvercle du boîtier étant ôté,FIG. 7 is an enlarged view of the transmission device illustrated in FIG. 6, the cover of the housing being removed,
- les figures 8, 9 et 10 sont des projections respectivement de dessous, selon la tranche, et de dessus, illustrant les moyens d'entraînement et de blocage de l'invention,FIGS. 8, 9 and 10 are projections respectively from below, along the edge, and from above, illustrating the drive and blocking means of the invention,
- la figure 11 est une vue de moyens débrayables utilisés dans un dispositif pour transformer un mouvement rotatif unidirectionnel en mouvement linéaire unidirectionnel, - la figure 12 illustre un dispositif de distribution de doses contrôlées d'un matériau liquide, pâteux ou visqueux, conforme à l'invention,FIG. 11 is a view of disengageable means used in a device for transforming a unidirectional rotary movement into a unidirectional linear movement, FIG. 12 illustrates a device for distributing controlled doses of a liquid, pasty or viscous material, in accordance with the invention,
- la figure 13 représente schématiquement un dispositif de pose d'éléments de fixation muni d'un dispositif de distribution conforme à l'invention.- Figure 13 shows schematically a device for fixing fastening elements provided with a distribution device according to the invention.
Comme illustrée à la figure 1 , la présente invention concerne un dispositif de transmission pour transformer au moins un mouvement oscillant en un mouvement rotatif unidirectionnel.As illustrated in FIG. 1, the present invention relates to a transmission device for transforming at least one oscillating movement into a unidirectional rotary movement.
Selon l'invention, un tel dispositif de transmission comprend un actionneur 1 oscillant autour d'un axe d'oscillation 2. Ce dispositif peut osciller entre deux positions, notamment des positions extrêmes haute et basse. Par exemple, il peut osciller dans un premier sens illustré par la flèche 3, de haut en bas, et dans un second sens opposé. On appellera ledit premier sens, sens d'entraînement, et ledit sens opposé, sens de retour. Le dispositif comprend également une roue 4 munie d'un axe de rotation 5.According to the invention, such a transmission device comprises an actuator 1 oscillating around an oscillation axis 2. This device can oscillate between two positions, in particular extreme high and low positions. For example, it can oscillate in a first direction illustrated by arrow 3, from top to bottom, and in a second opposite direction. We will call said first direction, drive direction, and said opposite direction, return direction. The device also includes a wheel 4 provided with a rotation axis 5.
Enfin, le dispositif de transmission conforme à l'invention comprend en outre :Finally, the transmission device according to the invention further comprises:
- des moyens d'entraînement 6 de ladite roue 4 par arc- boutement,means 6 for driving said wheel 4 by bracing,
- des moyens de blocage 8 de ladite roue 4 par arc-boutement. Lesdits moyens d'entraînement 6 sont assujettis audit actionneur 1 et sont aptes à entraîner ladite roue 4 dans un premier sens dit avant, illustré par la flèche 7. Lesdits moyens de blocage 8 sont aptes à interdire à ladite roue 4 d'entrer en rotation dans un second sens, dit arrière, opposé audit sens avant 7.- Locking means 8 of said wheel 4 by bracing. Said drive means 6 are subject to said actuator 1 and are capable of driving said wheel 4 in a first direction known as before, illustrated by the arrow 7. Said locking means 8 are capable of preventing said wheel 4 from entering into rotation in a second direction, called rear, opposite to said front direction 7.
De façon avantageuse, ladite roue 4, lesdits moyens d'entraînement 6 et lesdits moyens de blocage 8 sont rassemblés à l'intérieur d'un boîtier 9 qui les protège et les maintient dans leur position respective, comme illustré aux figures 2 à 6. Ledit boîtier 9 est muni d'un couvercle 10 qui, une fois ôté, comme le montre la figure 7, permet d'accéder au mécanisme du dispositif de transmission. Ainsi, ledit boîtier 9 peut servir de support à l'axe de rotation 2 de ladite roue. Il est en outre muni à l'arrière d'une ouverture 11 pour permettre les mouvements d'oscillation de l'actionneur 1.Advantageously, said wheel 4, said drive means 6 and said blocking means 8 are assembled inside a housing 9 which protects and maintains them in their respective positions, as illustrated in FIGS. 2 to 6. Said housing 9 is provided with a cover 10 which, once removed, as shown in FIG. 7, allows access to the mechanism of the transmission device. Thus, said housing 9 can serve as a support for the axis of rotation 2 of said wheel. It is also provided at the rear with an opening 11 to allow the oscillating movements of the actuator 1.
Par ailleurs, les moyens de blocage 8 de ladite roue 4 garde une position fixe par rapport audit boîtier 9.Furthermore, the locking means 8 of said wheel 4 keeps a fixed position relative to said housing 9.
En outre, avantageusement, l'axe d'oscillation 2 dudit actionneur 1 et l'axe de rotation 5 de ladite roue 4 sont confondus. Ledit actionneur 1 peut se présenter sous la forme d'un levier 1 dont une extrémité 12 est articulée à l'axe de rotation 5 de ladite roue 4.In addition, advantageously, the axis of oscillation 2 of said actuator 1 and the axis of rotation 5 of said wheel 4 are combined. Said actuator 1 can be in the form of a lever 1, one end 12 of which is articulated to the axis of rotation 5 of said wheel 4.
Comme illustré à la figure 1 et aux figures 8 à 10, ladite roue 4 présente une tranche 13 lisse. Les moyens d'entraînement 6 et les moyens de blocage 8 coopèrent avec ladite tranche 13 de la roue 4. Les moyens d'entraînement se présentent sous la forme d'un excentrique 14 assujetti audit levier 1 au niveau de son axe de rotation par un axe 15. Ainsi, la distance entre l'axe de rotation de l'excentrique d'entraînement 14 et l'axe de rotation 5 de ladite roue reste constante.As illustrated in Figure 1 and Figures 8 to 10, said wheel 4 has a smooth edge 13. The drive means 6 and the locking means 8 cooperate with said edge 13 of the wheel 4. The drive means are in the form of an eccentric 14 secured to said lever 1 at its axis of rotation by a axis 15. Thus, the distance between the axis of rotation of the drive eccentric 14 and the axis of rotation 5 of said wheel remains constant.
Au cours du mouvement d'oscillation du levier 1 autour de l'axe de rotation 5 de la roue 4, l'excentrique d'entraînement 14, entraîné par frottement, finira par s'arc-bouter contre ladite roue 4. Ainsi, ladite roue 4 est entraînée par ledit levier 1 , par l'intermédiaire de l'excentrique d'entraînementDuring the oscillating movement of the lever 1 around the axis of rotation 5 of the wheel 4, the drive eccentric 14, driven by friction, will end up bracing itself against said wheel 4. Thus, said wheel 4 is driven by said lever 1, via the drive eccentric
14.14.
Quand le levier 1 se déplace dans le sens de retour, l'excentrique d'entraînement 14 va légèrement tourner sur son axe de rotation et ne se trouvera plus arc-bouté contre ladite roue. Il pourra donc glisser librement le long de la tranche 13 de ladite roue 4.When the lever 1 moves in the return direction, the drive eccentric 14 will turn slightly on its axis of rotation and will no longer be braced against said wheel. It can therefore slide freely along the edge 13 of said wheel 4.
De la même manière, lesdits moyens de blocage 8 se présentent sous la forme d'un excentrique de blocage 16 dont l'axe de rotation, matérialisé par un axe 17, reste à distance constante de l'axe de rotation 5 de ladite roue 4. Le principe de fonctionnement de l'excentrique de blocage 16 est similaire à celui de l'excentrique de l'entraînement 14. Comme on a vu que les moyens de blocage 8 restent fixes par rapport au boîtier 9, lorsque ledit excentrique de blocage 16 est arc-bouté contre la roue 4, il empêche cette dernière d'entrer en rotation. C'est ce cas de figure qui se réalise lorsque le levier 1 se déplace dans le sens de retour.Similarly, said locking means 8 are in the form of a locking eccentric 16 whose axis of rotation, materialized by an axis 17, remains at constant distance from the axis of rotation 5 of said wheel 4 . The operating principle of the locking eccentric 16 is similar to that of the eccentric of the drive 14. As we have seen that the locking means 8 remain fixed relative to the housing 9, when said locking eccentric 16 is braced against the wheel 4, it prevents the latter from rotating. This is the case that occurs when the lever 1 moves in the return direction.
Par contre, lorsque le levier 1 se déplace dans le sens d'entraînement 3, ledit excentrique de blocage 16 subit une légère rotation autour de son axe de rotation et glisse librement contre la tranche 13 de ladite roue 4.On the other hand, when the lever 1 moves in the driving direction 3, said locking eccentric 16 undergoes a slight rotation around its axis of rotation and slides freely against the edge 13 of said wheel 4.
Le cycle de fonctionnement du dispositif de transmission est donc le suivant : lorsque le levier 1 se déplace dans le sens d'entraînement 3, l'excentrique d'entraînement 14 se trouve arc-bouté contre ladite roue 4 alors que l'excentrique de blocage 16 subit une légère rotation qui le place en « roue libre » par rapport à ladite roue 4. Ainsi, l'excentrique d'entraînement 14 peut entraîner la roue 4 en rotation, dans le sens avant 7.The operating cycle of the transmission device is therefore as follows: when the lever 1 moves in the drive direction 3, the drive eccentric 14 is braced against said wheel 4 while the locking eccentric 16 undergoes a slight rotation which places it in a “free wheel” relative to said wheel 4. Thus, the drive eccentric 14 can drive the wheel 4 in rotation, in the forward direction 7.
Puis, lorsque le levier 1 a atteint la de sa course, il se déplace dans le sens de retour, pour revenir à sa position initiale. Dans ce cas, ledit excentrique d'entraînement 14 subit une légère rotation qui le place en « roue libre » par rapport à ladite roue 4 tandis que ledit excentrique de blocage 16 se trouve arc-bouté contre la tranche 13 de ladite roue 4.Then, when the lever 1 has reached the end of its travel, it moves in the return direction, to return to its initial position. In this case, said drive eccentric 14 undergoes a slight rotation which places it in a “free wheel” relative to said wheel 4 while said locking eccentric 16 is braced against the edge 13 of said wheel 4.
Le levier 1 va donc pouvoir retourner librement à sa position initiale tandis que les moyens de blocage 8 empêchent la roue 4 de tourner dans le sens arrière. De manière avantageuse, lesdits excentriques d'entraînementThe lever 1 will therefore be able to return freely to its initial position while the locking means 8 prevent the wheel 4 from rotating in the rear direction. Advantageously, said drive eccentrics
14 et de blocage 16 se présentent sous la forme de galets tronqués, munis d'un méplat. Afin d'assurer un meilleur contact entre lesdits excentrique 14, 16 et ladite roue 4, des ressorts 18, 19 sont prévus, coopérant au moins avec ledit méplat desdits excentriques 14, 16, pour presser lesdits excentriques contre la tranche 13 de ladite roue 4.14 and blocking 16 are in the form of truncated rollers, provided with a flat. In order to ensure better contact between said eccentrics 14, 16 and said wheel 4, springs 18, 19 are provided, cooperating at least with said flat portion of said eccentrics 14, 16, to press said eccentrics against the edge 13 of said wheel 4 .
Ainsi, ledit levier 1 est muni d'un ergot 20 dans lequel est prévue une encoche 21 où est logé ledit ressort 18. Ladite encoche 21 permet de maintenir et de guider ledit ressort 18. Ledit ressort 18 agit sur ledit méplat dudit excentrique d'entraînement 14 et assure ainsi un contact constant entre ledit excentrique d'entraînement 14 et ladite roue 4. En ce qui concerne les moyens de blocage 8, il est avantageux de prévoir un bras coudé 22 dont une extrémité 23 coopère avec l'axe de rotation 5 de ladite roue 4, et l'autre extrémité 24 est solidaire dudit boîtier 9. Au niveau du coude dudit bras coudé 22, on prévoit une encoche 25 où est logé ledit ressort 19, apte à coopérer avec le méplat de l'excentrique de blocage 16. Ici également, ladite encoche 25 permet de maintenir et de guider ledit ressort 19.Thus, said lever 1 is provided with a lug 20 in which is provided a notch 21 where said spring 18 is housed. Said notch 21 makes it possible to hold and guide said spring 18. Said spring 18 acts on said flat of said drive eccentric 14 and thus ensures constant contact between said drive eccentric 14 and said wheel 4. As regards the locking means 8, it is advantageous to provide a bent arm 22, one end 23 of which cooperates with the axis of rotation 5 of said wheel 4, and the other end 24 is integral with said housing 9. At the elbow of said bent arm 22, a notch 25 is provided in which said spring 19 is housed, capable of cooperating with the flat part of the locking eccentric 16. Here also, said notch 25 makes it possible to hold and guide said spring 19.
Ainsi, lesdits moyens de blocage 8 restent correctement positionnés par rapport à ladite roue 4.Thus, said locking means 8 remain correctly positioned relative to said wheel 4.
Avantageusement, lesdits excentriques d'entraînement 14 et de blocage 16 présentent une excentricité de quelques dixièmes de millimètres, notamment 3/10 de millimètres pour un diamètre de 6 mm.Advantageously, said drive eccentrics 14 and blocking 16 have an eccentricity of a few tenths of a millimeter, in particular 3/10 of a millimeter for a diameter of 6 mm.
On a représenté à la figure 7, de manière exagérée, d'une part l'axe de rotation desdits excentriques 14, 16, matérialisés par les axes 15, 17 respectivement, et d'autre part le centre 50, 51 du cercle dans lequel est inscrit ledit excentrique 14, 16. On définit l'excentricité comme la distance entre l'axe de rotation de l'excentrique et le centre dudit cercle.FIG. 7 shows, in an exaggerated manner, on the one hand the axis of rotation of said eccentrics 14, 16, materialized by axes 15, 17 respectively, and on the other hand the center 50, 51 of the circle in which said eccentric 14, 16 is written. Eccentricity is defined as the distance between the axis of rotation of the eccentric and the center of said circle.
Pour chaque excentrique 14, 16, on considère le point de contact entre ledit excentrique 14, 16 et la roue 4 et l'axe de rotation dudit excentrique 14, 16. Ces deux points définissent une droite, appelée génératrice de contact 52, 53, qui forme un angle respectivement 54, 55 avec la droite définie par ledit point de contact et le centre 50, 51 du cercle dans lequel est inscrit ledit excentrique 14, 16.For each eccentric 14, 16, we consider the point of contact between said eccentric 14, 16 and the wheel 4 and the axis of rotation of said eccentric 14, 16. These two points define a line, called contact generator 52, 53, which forms an angle respectively 54, 55 with the straight line defined by said contact point and the center 50, 51 of the circle in which is inscribed said eccentric 14, 16.
Lorsque ledit excentrique 14, 16 entre en rotation, la position dudit centre 50, 51 par rapport à ladite génératrice de contact 52, 53 change. L'amplitude de l'angle de contact 54, 55 peut donc varier quand ledit excentrique 14, 16 est arc-bouté contre ladite roue 4, l'angle de contact 54, 55 a une valeur minimale, dite angle de pression.When said eccentric 14, 16 enters into rotation, the position of said center 50, 51 relative to said contact generator 52, 53 changes. The amplitude of the contact angle 54, 55 can therefore vary when said eccentric 14, 16 is braced against said wheel 4, the contact angle 54, 55 has a minimum value, called the pressure angle.
Grâce auxdits ressorts 18, 19, le contact entre undit excentrique 14, 16 et ladite roue 4 est maintenu à tout moment et ledit angle de contact 54, 55 reste constant. C'est le sens des efforts exercés entre ladite roue 4 et lesdits excentriques 14, 16, qui détermine si ledit excentrique 14, 16 est arc-bouté ou en frottement glissant contre la roue.Thanks to said springs 18, 19, the contact between said eccentric 14, 16 and said wheel 4 is maintained at all times and said contact angle 54, 55 remains constant. It is the direction of the forces exerted between said wheel 4 and said eccentrics 14, 16, which determines whether said eccentric 14, 16 is braced or in sliding friction against the wheel.
Comme illustré à la figure 1 , ledit levier 1 peut être assujetti à des moyens de commande, par l'intermédiaire d'un taquet 26. Les moyens de commande décrivent avantageusement un mouvement alternatif, en ce sens que le chemin suivi par lesdits moyens de commande, dans l'espace, reste le même d'un cycle de fonctionnement au suivant.As illustrated in FIG. 1, said lever 1 can be subjected to control means, by means of a cleat 26. The control means advantageously describe a reciprocating movement, in the sense that the path followed by said means of control, in space, remains the same from one operating cycle to the next.
Avantageusement, ledit taquet 26 peut être positionné le long dudit levier 1 , à distance variable de l'axe d'oscillation 2 dudit levier 1 ou de rotation 5 de ladite roue 4. Cette disposition autorise un coefficient de transmission variable du mouvement alternatif des moyens de commande au dispositif de transmission conforme à l'invention.Advantageously, said cleat 26 can be positioned along said lever 1, at a variable distance from the axis of oscillation 2 of said lever 1 or from rotation 5 of said wheel 4. This arrangement allows a variable transmission coefficient of the reciprocating movement of the means of control to the transmission device according to the invention.
En effet, pour un cycle complet de déplacement des moyens de commande avec une amplitude constante, selon la position du taquet 26 sur le levier 1 , l'angle d'oscillation dudit levier autour de son axe d'oscillation 2, variera. En particulier, plus le taquet 26 sera proche dudit axe d'oscillation 2, plus l'angle d'oscillation sera grand et plus l'angle de rotation de ladite roue 4 correspondant sera important.Indeed, for a complete cycle of movement of the control means with a constant amplitude, depending on the position of the cleat 26 on the lever 1, the angle of oscillation of said lever around its axis of oscillation 2 will vary. In particular, the closer the cleat 26 is to said axis of oscillation 2, the greater the angle of oscillation will be and the greater the angle of rotation of said corresponding wheel 4.
La présente demande concerne également un dispositif de transmission pour transformer un mouvement oscillant en un mouvement linéaire unidirectionnel, mettant en œuvre un dispositif de transmission, tel qu'évoqué précédemment pour transformer un mouvement oscillant en un mouvement rotatif unidirectionnel et comprenant en outre un pignon 27 coopérant avec l'axe de rotation 5 de ladite roue 4 d'une part et d'autre part, engrenant avec une crémaillère 28. Ainsi, lorsque le levier 1 se déplace dans le sens d'entraînement, il entraîne, grâce à l'excentrique d'entraînement 14, ladite roue 4. Celle-ci entraîne ledit pignon, solidaire de l'axe de rotation 5 de ladite roue 4 et ledit pignon 27 engrène avec ladite crémaillère 28 qui décrit alors un mouvement linéaire unidirectionnel.The present application also relates to a transmission device for transforming an oscillating movement into a unidirectional linear movement, implementing a transmission device, as mentioned above to transform an oscillating movement into a unidirectional rotary movement and further comprising a pinion 27 cooperating with the axis of rotation 5 of said wheel 4 on the one hand and on the other hand, meshing with a rack 28. Thus, when the lever 1 moves in the driving direction, it drives, thanks to the eccentric drive 14, said wheel 4. The latter drives said pinion, integral with the axis of rotation 5 of said wheel 4 and said pinion 27 meshes with said rack 28 which then describes a unidirectional linear movement.
Comme l'excentrique de blocage 16 empêche la rotation de la roue 4 dans le sens arrière, le pignon 27 ne peut pas non plus tourner dans le sens arrière. Ainsi, la crémaillère 28 est elle-même bloquée dans le sens correspondant audit sens arrière de ladite roue 4.As the locking eccentric 16 prevents rotation of the wheel 4 in the rear direction, the pinion 27 cannot rotate in the rear direction either. Thus, the rack 28 is itself locked in the direction corresponding to said rear direction of said wheel 4.
De manière avantageuse, on prévoit des moyens de débrayage pour rendre libre ledit pignon 27 par rapport à l'axe de rotation 5 de ladite roue 4 et pouvoir ramener ladite crémaillère 28 dans sa position initiale en l'entraînant dans le sens contraire à son sens normal de déplacement.Advantageously, disengagement means are provided to make said pinion 27 free relative to the axis of rotation 5 of said wheel 4 and to be able to return said rack 28 to its initial position by driving it in the opposite direction to its direction. normal displacement.
Ledit pignon 27 est monté sur un arbre 31 dont l'extrémité est munie d'un orifice traversant dans laquelle est logé une goupille 32. Ladite goupille 32 coopère avec une rainure diamétrale 30 de l'extrémité du pignon 27. Ainsi, lorsque ladite goupille 32 est engagée dans ladite rainure 30, la rotation de l'arbre 31 entraîne la rotation du pignon 27.Said pinion 27 is mounted on a shaft 31, the end of which is provided with a through hole in which a pin 32 is housed. Said pin 32 cooperates with a diametrical groove 30 at the end of the pinion 27. Thus, when said pin 32 is engaged in said groove 30, the rotation of the shaft 31 causes the pinion 27 to rotate.
Par ailleurs, on prévoit un tube 34 solidaire de la roue 4 au niveau de son axe de rotation 5. La longueur du tube 34 est au moins égale à une fois et demie le diamètre de la goupille 32 placée à l'extrémité de l'arbre 31 du pignon 27. Le diamètre intérieur dudit tube 34 est égal à celui de l'arbreFurthermore, there is provided a tube 34 integral with the wheel 4 at its axis of rotation 5. The length of the tube 34 is at least equal to one and a half times the diameter of the pin 32 placed at the end of the shaft 31 of the pinion 27. The inside diameter of said tube 34 is equal to that of the shaft
31 du pignon 27, de sorte que ledit tube 34 et ledit arbre 31 peuvent coopérer.31 of the pinion 27, so that said tube 34 and said shaft 31 can cooperate.
De plus, la paroi dudit tube 34 est munie de deux encoches 35 longitudinales, diamétralement opposées, aptes à coopérer avec ladite goupilleIn addition, the wall of said tube 34 is provided with two longitudinal notches 35, diametrically opposite, capable of cooperating with said pin.
32. Ainsi, lorsque ladite roue 4 entre en rotation, elle est apte à entraîner ledit arbre 31 en rotation par l'intermédiaire de la goupille 32.32. Thus, when said wheel 4 enters into rotation, it is able to drive said shaft 31 in rotation via the pin 32.
Pour débrayer ledit pignon 27 de ladite roue 5, on place au fond dudit tube 34 un ressort de débrayage 33, de sorte qu'en position embrayée, ledit ressort de débrayage appuie sur ladite goupille 32 pour qu'elle coopère avec ladite rainure 30 du pignon 27. La longueur de l'arbre 31 est prévue suffisante pour que ledit arbre 31 dépasse dudit boîtier 9, au niveau d'un bouton de débrayage 36. En appuyant sur ledit bouton de débrayage 36, on repousse ledit arbre 31 et donc ladite goupille 32 pour la dégager de ladite rainure 30 du pignon 27, et qu'elle coopère plus avec le pignon. Il est alors possible de déplacer ladite crémaillère 28 dans le sens contraire à son sens normal de déplacement.To disengage said pinion 27 from said wheel 5, a disengaging spring 33 is placed at the bottom of said tube 34, so that in the engaged position, said disengaging spring presses on said pin 32 so that it cooperates with said groove 30 of the pinion 27. The length of the shaft 31 is provided sufficient for said shaft 31 to protrude from said housing 9, at a disengagement button 36. By pressing said disengaging button 36, said shaft 31 and therefore said pin 32 are pushed back so as to disengage it from said groove 30 of the pinion 27, and that it cooperates more with the pinion. It is then possible to move said rack 28 in the opposite direction to its normal direction of movement.
Il est à noter qu'un dispositif de transmission pour transformer un mouvement oscillant en un mouvement linéaire ou rotatif unidirectionnel, conforme à l'invention, est irréversible. En effet, du fait de la présence des moyens de blocage 8, et étant donné que le levier 1 peut osciller indépendamment de la rotation de la roue 4, il n'est pas possible de transformer un mouvement rotatif unidirectionnel imprimé à ladite roue 4 en un mouvement oscillant du levier 1.It should be noted that a transmission device for transforming an oscillating movement into a linear or rotary unidirectional movement, in accordance with the invention, is irreversible. Indeed, due to the presence of the locking means 8, and since the lever 1 can oscillate independently of the rotation of the wheel 4, it is not possible to transform a unidirectional rotary movement printed on said wheel 4 into an oscillating movement of the lever 1.
Par ailleurs, indépendamment de la position du taquet 26 sur le levier 1 , une oscillation complète du levier 1 , c'est-à-dire un mouvement dans le sens d'entraînement 3 suivi d'un mouvement dans le sens de retour, aboutit à une rotation et éventuellement à une translation, d'amplitude constante au cours du temps. Il est possible de régler cette amplitude en réglant la position du taquet 26 par l'intermédiaire duquel lesdits moyens de commande agissent. La présente invention concerne encore un dispositif de distribution de doses contrôlées d'un matériau liquide, pâteux ou visqueux tel qu'un produit de finition, notamment un produit d'étanchéité, mettant en œuvre un dispositif de transmission pour transformer un mouvement oscillant en un mouvement linéaire unidirectionnel, ledit dispositif de distribution comportant en outre un réservoir 37 apte à contenir ledit matériau, ladite crémaillère 28 coopérant avec des moyens 39 pour vider ledit réservoir 37 dose par dose.Furthermore, independently of the position of the cleat 26 on the lever 1, a complete oscillation of the lever 1, that is to say a movement in the drive direction 3 followed by a movement in the return direction, results to a rotation and possibly a translation, of constant amplitude over time. It is possible to adjust this amplitude by adjusting the position of the cleat 26 by means of which said control means act. The present invention also relates to a device for distributing controlled doses of a liquid, pasty or viscous material such as a finishing product, in particular a sealing product, using a transmission device to transform an oscillating movement into a unidirectional linear movement, said dispensing device further comprising a reservoir 37 capable of containing said material, said rack 28 cooperating with means 39 for emptying said reservoir 37 dose by dose.
Un tel dispositif est illustré à la figure 12. Dans cette figure, ledit réservoir 37 se présente sous la forme d'une cartouche ou d'une seringue munie d'une buse de distribution 40 et d'un piston qui constituent lesdits moyens 39 pour vider ledit réservoir 37.Such a device is illustrated in Figure 12. In this figure, said reservoir 37 is in the form of a cartridge or a syringe provided with a dispensing nozzle 40 and a piston which constitute said means 39 for empty said tank 37.
Comme illustré, lorsque ladite crémaillère 28 avance d'un pas correspondant à l'amplitude sélectionnée, une dose prédéterminée du produit de finition peut être distribuée.As illustrated, when said rack 28 advances by one step corresponding to the selected amplitude, a predetermined dose of the finishing product can be dispensed.
Comme illustré, le boîtier 9 est muni d'un capot avant 41 dont la partie inférieure, où débouche la crémaillère 28, présente une encoche sensiblement circulaire 42.As illustrated, the box 9 is provided with a front cover 41, the lower part of which, the rack 28 opens, has a substantially circular notch 42.
Par ailleurs, ledit réservoir 37 est muni à son extrémité opposée à la buse de distribution 40, d'ailettes 43. Ladite encoche circulaire 42 est prévue apte à recevoir lesdites ailettes 43 du réservoir 37. Elle sert donc de moyens de maintien dudit réservoir. De plus, cela permet de changer la cartouche 37 utilisée très facilement. Une fois une cartouche 37 vidée, il suffit de débrayer le pignon 27 de la roue 4 en appuyant sur le bouton de débrayage 36, de ramener la crémaillère 28 dans sa position initiale, puis d'ôter la cartouche 37 vidée en la glissant hors de l'encoche de maintien 42 avant d'installer une cartouche neuve 37.Furthermore, said reservoir 37 is provided at its end opposite to the dispensing nozzle 40, with fins 43. Said circular notch 42 is provided capable of receiving said fins 43 of the reservoir 37. It therefore serves as means for holding said reservoir. In addition, this allows the cartridge 37 used to be changed very easily. Once a cartridge 37 has been emptied, it suffices to disengage the pinion 27 of the wheel 4 by pressing the disengaging button 36, to return the rack 28 to its initial position, then to remove the emptied cartridge 37 by sliding it out of the retaining notch 42 before installing a new cartridge 37.
Avantageusement, on peut utiliser un tel dispositif de dosage d'un matériau de finition dans un dispositif 44 de pose d'éléments de fixation par exemple le rivetage. Un tel dispositif de pose d'éléments de fixation est décrit dans les documents de brevet FR-01/07822 et FR-02/07322. Ces mécanismes présentent notamment un dispositif de chargement 45 qui amène d'un élément de fixation les extrémités d'un moyen 46 d'alimentation en élément de fixation jusqu'à un moyen 47 de pose de l'élément de fixation.Advantageously, one can use such a device for metering a finishing material in a device 44 for fitting fastening elements, for example riveting. Such a device for fitting fastening elements is described in patent documents FR-01/07822 and FR-02/07322. These mechanisms have in particular a loading device 45 which brings the ends of a means 46 for supplying the fixing element from a fixing element to a means 47 for fitting the fixing element.
Au cours du fonctionnement du dispositif de pose, les moyens de chargement 45 basculent avec une amplitude constante autour de son axe de basculement 48.During the operation of the laying device, the loading means 45 tilt with a constant amplitude around its tilting axis 48.
Avantageusement, on pourra fixer un dispositif de dosage conforme à l'invention à un point fixe par rapport Aux moyens de chargement 45 sommairement décrit. En outre, on pourra assujettir ledit levier 1 audit dispositif de chargement 45, par l'intermédiaire d'un taquet 26. Ainsi, le mouvement de basculement du dispositif de chargement pourra être transmis audit levier 1 , assurant donc le fonctionnement du dispositif de dosage.Advantageously, one can fix a metering device according to the invention at a fixed point relative to the loading means 45 briefly described. In addition, said lever 1 can be secured to said loading device 45, by means of a cleat 26. Thus, the tilting movement of the loading device can be transmitted said lever 1, thus ensuring the operation of the metering device.
Par ailleurs, le but étant d'amener une dose contrôlée d'un matériau de finition au niveau du moyen de fixation, on prévoit entre la buse 40 de la cartouche 37 et les moyens de maintien des moyens de chargement un tuyau souple dans lequel peut circuler ledit matériau liquide, pâteux ou visqueux, de finition.Furthermore, the aim being to bring a controlled dose of a finishing material to the level of the fixing means, there is provided between the nozzle 40 of the cartridge 37 and the means for holding the loading means a flexible pipe in which can circulating said liquid, pasty or viscous, finishing material.
Naturellement, d'autres modes de mises en œuvre à la portée de l'homme de l'art, auraient pu encore être envisagés sans pour autant sortir du cadre de l'invention. Naturally, other modes of implementation within the reach of ordinary skill in the art could still have been envisaged without departing from the scope of the invention.

Claims

REVENDICATIONS
1. Dispositif de transmission pour transformer au moins un mouvement oscillant en un mouvement rotatif unidirectionnel comprenant :1. Transmission device for transforming at least one oscillating movement into a unidirectional rotary movement comprising:
- un actionneur oscillant (1) autour d'un axe d'oscillation (2), entre deux positions, dans un premier sens (3), dit d'entraînement, et dans un second sens, dit de retour, opposé audit sens d'entraînement (3),- an oscillating actuator (1) around an axis of oscillation (2), between two positions, in a first direction (3), called drive, and in a second direction, said return, opposite to said direction d 'drive (3),
- une roue (4) munie d'un axe de rotation (5), l'axe d'oscillation (2) dudit actionneur (1) et l'axe de rotation de ladite roue (4) étant confondus,a wheel (4) provided with an axis of rotation (5), the oscillation axis (2) of said actuator (1) and the axis of rotation of said wheel (4) being combined,
- des moyens d'entraînement (6) de ladite roue (4) par arc- boutement, assujettis audit actionneur (1), aptes à entraîner ladite roue (4) dans un premier sens (7), dit avant,drive means (6) of said wheel (4) by bracing, subject to said actuator (1), capable of driving said wheel (4) in a first direction (7), said before,
- des moyens de blocage (8) de ladite roue (4) par arc- boutement, aptes à interdire à ladite roue (4) d'entrer en rotation dans un second sens, dit arrière, opposé audit sens avant (7). - Locking means (8) of said wheel (4) by bracing, capable of preventing said wheel (4) from rotating in a second direction, called rear, opposite to said front direction (7).
2. Dispositif selon la revendication 1 , dans lequel ledit actionneur (1) se présente sous la forme d'un levier (1) dont une extrémité (12) est articulée à l'axe de rotation de ladite roue (4).2. Device according to claim 1, wherein said actuator (1) is in the form of a lever (1), one end (12) of which is articulated to the axis of rotation of said wheel (4).
3. Dispositif selon l'une des revendications 1 ou 2, dans lequel ladite roue (4) présente une tranche (13) lisse et dans lequel lesdits moyens d'entraînement (6) et de blocage (8) se présentent chacun sous la forme d'un excentrique (14, 16) coopérant avec la tranche (13) de ladite roue, la distance entre l'axe de rotation d'undit excentrique (14, 16) et l'axe de rotation (5) de ladite roue (4) restant constante au cours du fonctionnement du dispositif, de sorte que : - lorsque ledit actionneur (1) se déplace dans ledit sens d'entraînement (3), ledit excentrique d'entraînement (14) se trouve arc-bouté contre ladite roue (4), pour entraîner ladite roue (4) en rotation dans ledit sens avant (7),3. Device according to one of claims 1 or 2, wherein said wheel (4) has a smooth edge (13) and wherein said drive means (6) and locking (8) are each in the form of an eccentric (14, 16) cooperating with the edge (13) of said wheel, the distance between the axis of rotation of said eccentric (14, 16) and the axis of rotation (5) of said wheel ( 4) remaining constant during the operation of the device, so that: - when said actuator (1) moves in said drive direction (3), said drive eccentric (14) is braced against said wheel (4), to drive said wheel (4) in rotation in said front direction (7),
- lorsque ledit actionneur (1) se déplace dans ledit sens de retour, ledit excentrique de blocage (16) se trouve arc-bouté contre ladite roue- when said actuator (1) moves in said return direction, said locking eccentric (16) is braced against said wheel
(4), pour interdire à ladite roue (4) d'entrer en rotation dans ledit sens arrière, - undit excentrique (14, 16) pouvant glisser librement le long de la tranche (13) de ladite roue (4) lorsque l'autre y est arc-bouté.(4), to prevent said wheel (4) from rotating in said rearward direction, - said eccentric (14, 16) being able to slide freely along the edge (13) of said wheel (4) when the other is braced there.
4. Dispositif selon la revendication 3, dans lequel lesdits excentriques (14, 16) se présentent sous la forme de galets tronqués, pour définir un méplat, ledit dispositif comprenant en outre des ressorts (18, 19) aptes à coopérer avec ledit méplat desdits excentriques (14, 16) pour maintenir le contact entre lesdits excentriques (14, 16) et ladite roue (4).4. Device according to claim 3, wherein said eccentrics (14, 16) are in the form of truncated rollers, to define a flat, said device further comprising springs (18, 19) capable of cooperating with said flat of said eccentrics (14, 16) for maintaining contact between said eccentrics (14, 16) and said wheel (4).
5. Dispositif selon l'une des revendications 3 ou 4, dans lequel lesdits excentriques (14, 16) présentent une excentricité de 3/10 de millimètre pour un diamètre de 6 mm.5. Device according to one of claims 3 or 4, wherein said eccentrics (14, 16) have an eccentricity of 3/10 of a millimeter for a diameter of 6 mm.
6. Dispositif selon l'une quelconque des revendications 2 à 5, dans lequel ledit levier (1) est assujetti, par l'intermédiaire d'un taquet (26), à des moyens de commande décrivant un mouvement alternatif, ledit taquet (26) pouvant être positionné le long dudit levier (1), à distance variable de l'axe d'oscillation (2) dudit levier (1), pour autoriser un coefficient de transmission variable.6. Device according to any one of claims 2 to 5, wherein said lever (1) is subject, via a cleat (26), to control means describing a reciprocating movement, said cleat (26 ) can be positioned along said lever (1), at a variable distance from the axis of oscillation (2) of said lever (1), to allow a variable transmission coefficient.
7. Dispositif selon l'une quelconque des revendications précédentes, qui présente en outre un pignon (27) coopérant avec l'axe de rotation (5) de ladite roue (4) d'une part, et d'autre part engrenant avec une crémaillère (28), ledit dispositif étant apte à transformer ledit mouvement oscillant en un mouvement linéaire unidirectionnel.7. Device according to any one of the preceding claims, which further has a pinion (27) cooperating with the axis of rotation (5) of said wheel (4) on the one hand, and on the other hand meshing with a rack (28), said device being capable of transforming said oscillating movement into a unidirectional linear movement.
8. Dispositif selon la revendication 7, dans lequel sont prévus des moyens de débrayage pour rendre libre ledit pignon (27) par rapport à l'axe de rotation (5) de ladite roue (4). 8. Device according to claim 7, in which disengaging means are provided to make said pinion (27) free relative to the axis of rotation (5) of said wheel (4).
9. Dispositif de distribution de doses contrôlées d'un matériau liquide, pâteux ou visqueux, notamment un produit d'étanchéité mettant en œuvre un dispositif de transmission selon l'une des revendications 7 ou 8, ledit dispositif de distribution comportant en outre un réservoir (37) apte à contenir ledit matériau, ladite crémaillère (28) coopérant avec des moyens (39) pour vider ledit réservoir (37) dose par dose.9. A device for dispensing controlled doses of a liquid, pasty or viscous material, in particular a sealant using a transmission device according to one of claims 7 or 8, said dispensing device further comprising a reservoir. (37) able to contain said material, said rack (28) cooperating with means (39) for emptying said reservoir (37) dose by dose.
10. Dispositif selon la revendication 9, dans lequel ledit réservoir (37) se présente sous la forme d'une cartouche munie d'une buse (40) de distribution et d'un piston (39), ladite crémaillère (28) coopérant avec ledit piston (39) pour vider ledit réservoir (37) dose par dose. 10. Device according to claim 9, wherein said reservoir (37) is in the form of a cartridge provided with a dispensing nozzle (40) and a piston (39), said rack (28) cooperating with said piston (39) to empty said reservoir (37 ) dose by dose.
EP03776963A 2002-10-15 2003-10-08 Transmission device and application to a metering device Withdrawn EP1551563A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR0212816A FR2845747B1 (en) 2002-10-15 2002-10-15 TRANSMISSION DEVICE AND APPLICATION TO A DOSING DEVICE
FR0212816 2002-10-15
PCT/FR2003/002969 WO2004035229A1 (en) 2002-10-15 2003-10-08 Transmission device and application to a metering device

Publications (1)

Publication Number Publication Date
EP1551563A1 true EP1551563A1 (en) 2005-07-13

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EP03776963A Withdrawn EP1551563A1 (en) 2002-10-15 2003-10-08 Transmission device and application to a metering device

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US (1) US20050241421A1 (en)
EP (1) EP1551563A1 (en)
CN (1) CN1703285A (en)
AU (1) AU2003286221A1 (en)
CA (1) CA2500324C (en)
FR (1) FR2845747B1 (en)
WO (1) WO2004035229A1 (en)

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CA2500324C (en) 2008-09-23
AU2003286221A1 (en) 2004-05-04
US20050241421A1 (en) 2005-11-03
CN1703285A (en) 2005-11-30
FR2845747A1 (en) 2004-04-16
FR2845747B1 (en) 2005-08-19
WO2004035229A1 (en) 2004-04-29
CA2500324A1 (en) 2004-04-29

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