EP0559521B1 - Actuator device for a slider control - Google Patents

Actuator device for a slider control Download PDF

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Publication number
EP0559521B1
EP0559521B1 EP93400459A EP93400459A EP0559521B1 EP 0559521 B1 EP0559521 B1 EP 0559521B1 EP 93400459 A EP93400459 A EP 93400459A EP 93400459 A EP93400459 A EP 93400459A EP 0559521 B1 EP0559521 B1 EP 0559521B1
Authority
EP
European Patent Office
Prior art keywords
trigger
housing
translation
axis
sliding block
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 - Lifetime
Application number
EP93400459A
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German (de)
French (fr)
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EP0559521A1 (en
Inventor
Jacques Colange
Jean Colange
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Moviluty
Original Assignee
Moviluty
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Publication of EP0559521B1 publication Critical patent/EP0559521B1/en
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    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05G—CONTROL DEVICES OR SYSTEMS INSOFAR AS CHARACTERISED BY MECHANICAL FEATURES ONLY
    • G05G1/00—Controlling members, e.g. knobs or handles; Assemblies or arrangements thereof; Indicating position of controlling members
    • G05G1/30—Controlling members actuated by foot
    • G05G1/38—Controlling members actuated by foot comprising means to continuously detect pedal position
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05G—CONTROL DEVICES OR SYSTEMS INSOFAR AS CHARACTERISED BY MECHANICAL FEATURES ONLY
    • G05G1/00—Controlling members, e.g. knobs or handles; Assemblies or arrangements thereof; Indicating position of controlling members
    • G05G1/30—Controlling members actuated by foot
    • G05G1/40—Controlling members actuated by foot adjustable
    • G05G1/405—Controlling members actuated by foot adjustable infinitely adjustable
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H21/00—Switches operated by an operating part in the form of a pivotable member acted upon directly by a solid body, e.g. by a hand
    • H01H21/02—Details
    • H01H21/18—Movable parts; Contacts mounted thereon
    • H01H21/22—Operating parts, e.g. handle
    • H01H21/24—Operating parts, e.g. handle biased to return to normal position upon removal of operating force
    • H01H21/26—Operating parts, e.g. handle biased to return to normal position upon removal of operating force adapted for operation by a part of the human body other than the hand, e.g. by foot

Definitions

  • the present invention relates to the control devices of a slider variator, and more particularly those which are used to vary the operating speed of certain power tools.
  • devices are used to control the operating speed of the tools arranged at the end of the flexible transmission.
  • the hands of the user being remembered otherwise occupied, these devices are arranged to be controlled by foot using a pedal.
  • a foot control does not ensure high precision and the tool often includes an additional device for adjusting by hand, with better precision, the operating speed of the tools.
  • the fact of having to have two separate devices in order to be able to vary the operating speed of the tools is unfavorable to the simplicity of use of these tools and to the cost of the tools.
  • US Pat. No. 4,299,182 proposes a device comprising a pedal acting on a rheostat and a series of buttons making it possible to selectively switch on discrete resistors in place of the rheostat.
  • these buttons do not allow continuous manual adjustment of the parameter controlled.
  • the circuit included in this device is relatively complex because it is necessary to provide a large number of discrete resistors and switching means in addition to the rheostat conventionally included in pedal control devices.
  • a device for controlling a slider variator according to the characteristics of the preamble of claim 1 is known from CH-A-328 583.
  • the object of the present invention is therefore to provide a device for controlling a slider variator, which makes it possible to safely provide foot control and hand control functions, which is of a simple and compact structure, and easy to use.
  • the device illustrated in Figures 1 to 7 is used to continuously control the value of a parameter.
  • This parameter can be, by way of nonlimiting example, the value of the speed of rotation of a tool coupled to a motor by means of a flexible transmission and the device is then connected to the motor.
  • Figure 1 shows, in schematic form, a device for control of a variator 2 with slider 14.
  • This device comprises a housing 1, a trigger 3 which can move in translation continuously, for example on guide rails or the like, between two positions relative to the housing, one of the two positions constituting a rest position such as that which is represented in this figure 1.
  • the device also includes means for applying an elastic force to the trigger to tend to bring it back to this rest position, means 45 for coupling the trigger 3 with the cursor 14, a lever 9, means 46 for mounting this lever 9 in rotation relative to the housing around a first axis 17, and means for transforming the movement of rotation of the lever into movement of translation of the trigger 3.
  • the housing 1 comprises at least a first housing 8 and a second housing 15 separated by a so-called dividing wall 42, or equivalent, the variator being disposed in the first housing 8 and the trigger projecting, by its face 40, in the second housing 15 passing through a breakthrough or the like 47 produced in this party wall.
  • the second housing 15 has at least one opening 25, the axis of rotation 17 of the lever 9 being situated substantially in the plane of this opening so that the lever, or at least part of the lever, constitutes a wall for closing this opening 25, the means 28 for mounting the slide in translation relative to the housing being located substantially on the wall 29 of this second housing which is substantially opposite to the opening 25.
  • the device further comprises means for erasing the lever 9 from the opening 25 to allow access to the interior of the second housing 15.
  • means for erasing the lever 9 can be produced in many ways and FIGS. 2 to 7 give a preferred mode.
  • the lever 9 is constituted by a pedal part 16, an actuating element 18 and means for mounting the actuating element in rotation relative to the pedal part 16 around a second axis 41 substantially parallel to the first axis 17.
  • the means for transforming the rotational movement of the lever 9 into translational movement of the trigger 3 are then constituted by the free end 22 of the actuating element 18 mounted in cooperation by sliding with, advantageously, the face 40 of the trigger 3, for example a face perpendicular to the direction of translation of the trigger and able to move in the second housing 15.
  • the device also advantageously comprises means for defining the angular position of the actuating element 18 relative to the pedal part 16 and elastic return means 27 applied between the actuating element 18 and the pedal part 16.
  • the means 10 for controlling the translation of the slider comprise manual operating means for delivering a rotational movement around a third axis 34 and means for transforming this rotational movement into translational movement of the slider 31.
  • the means for transforming the rotational movement in translational movement of the slide 31 comprise at least one cam 36 rotatably mounted around the third axis 34 substantially perpendicular to the direction of movement of the slide and the first axis 17 defined above and one end of the slide arranged to be suitable to slide on the edge 43 of the cam 36 produced so that the distance between each point of its edge and the third axis of rotation 34 varies, from one point to another, according to a continuous increasing function.
  • FIGS. 2 to 7 represent a preferred embodiment of a device according to the invention as schematically represented in FIG. 1.
  • the device produced according to the mode shown in Figures 2 to 7 in fact comprises a housing 1 in which is mounted the variator 2, the trigger 3, the lower part of the housing 1 being closed by a bottom plate 4 which is not shown in FIGS. 6 and 7 to show the interior of the housing 1. Feet 6 of damping material are fixed under the plate 4.
  • the variator 2 can be constituted, for example, by a rheostat whose resistance varies according to the position of the cursor 14 and therefore of the trigger 3, to define the value of the commanded speed.
  • this variator can be electronic with a hybrid circuit comprising a triac controlled by trigger 3.
  • an output connector 7 is electrically connected to the variator 2.
  • the variator 2 is held in place by appropriate ribs 11, 12.
  • the trigger 3 is urged towards the outside of the first housing 8 by return springs 13 indicated in dashes in FIGS. 6 and 7.
  • the lever 9 constitutes a foot control means.
  • the pedal part 16 is articulated on the housing 1 around the first axis 17 advantageously perpendicular to the direction of movement of the trigger 3.
  • the axis 17 is mounted in two openings 19 formed in the housing 1 (FIG. 4) and the actuating element 18 is pivotally mounted about this axis 17, the first and second axes then being combined.
  • a shim 21 is placed between the underside 20 of the pedal part 16 and the actuating element 18 and constitutes the means for defining the angular position of the actuating element 18 relative to the pedal part 16.
  • the actuating element 18 has one end 22 applied in sliding position on the face 40 of the trigger 3, while its opposite end 23 is applied against the wedge 21.
  • the actuating element 18 leverages to actuate the trigger 3 against the return springs 13 and to modify the position of the cursor 14, and therefore, in the chosen example of the use of the device, to vary the speed of the motor operating the tool.
  • the manual operating means for delivering a rotational movement around the third axis 34 are constituted by a rotary button 32 accessible on the surface 33 of the housing 1 which extends substantially au- above the slide 31 and below the pedal part 16.
  • the button 32 can pivot around the axis 34 which is perpendicular to the surface 33 and the cam 36 is integral with this button, but located under the surface 33 of so that its edge is applied against the end of the slide 31 opposite to that which is in contact with the trigger.
  • the cam 36 is produced so that the distance between each point of its edge and the third axis of rotation 34 varies, from one point to another, according to an increasing (or decreasing) function ) keep on going.
  • the contact surface 30 between the cam 36 and the slider 31 is always substantially perpendicular to the direction of movement of the slider 31 and of the trigger 3.
  • the rotation of the cam 36 causes a translation of the slide 31 which actuates the trigger against the return springs 13.
  • the return springs 13 gradually push back the trigger 3 and the slide 31.
  • the cam 36 and the slide 31 comprise stops 35 to limit the rotation of the cam 36.
  • the slide 31 is applied against the trigger 3 by its end 37 advantageously comprising two support elements protruding above the surface 33 through a window 39 provided for therein.
  • the two support elements 37 are separated by an interval 38 of a width slightly greater than that of the actuating element 18, and located at the right of this actuating element 18 relative to the axis 17.
  • the interval 38 leaves an area of the trigger 3 exposed to receive the free end 22 of the actuating element 18.
  • the articulation of the pedal part 16 on the housing 1 allows the pedal part to be placed in a raised position illustrated in FIG. 2. In this position, the surface 33 and the button 32 become accessible.
  • the device according to the invention can therefore be used either in so-called “foot control” mode, with the pedal part 16 folded in the position illustrated in FIG. 2, or in so-called “hand control” mode, with the pedal part raised in the position illustrated in FIG. 3.
  • the thickness of the shim 21 is adjustable.
  • This shim 21 has a generally cylindrical shape, one face of which is applied against the lower face 20 of the pedal part 16 and the opposite face receives the end 23 of the actuating element 18.
  • This last face of the shim 21 comprises , near its periphery, several radial notches 24 of different depths and width corresponding to that of the end 23 of the actuating element 18.
  • the wedge 21 is pivotally mounted on the underside 20 of the pedal part 16 about an axis 26 perpendicular to this face 20 and offset relative to the position of the actuating element 18, so that the end 23 of the latter engages in one of the notches 24 of the wedge 21.
  • the elastic return means 27 applied between the actuating element 18 and the part of pedal 16 are constituted by a helical spring arranged around the axis 17 and urging in rotation the actuating element 18 towards the shim 21, so as to maintain the end 23 of the element 18 in the selected notch of the shim 21 whatever the position of the pedal part 16.
  • This is how the action of the helical spring 27 on the actuating element 18 must be greater than the action, on this element, of the springs reminder 13 when the trigger returns to its rest position.
  • the depth of the selected notch 24 defines the value maximum of the travel of the trigger 3, and therefore the maximum value of the variation of the speed of rotation of the tool.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Mechanical Control Devices (AREA)
  • Sewing Machines And Sewing (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
  • Adjustable Resistors (AREA)

Description

La présente invention concerne les dispositifs de commande d'un variateur à curseur, et plus particulièrement ceux qui sont utilisés pour faire varier la vitesse de fonctionnement de certains outillages électroportatifs.The present invention relates to the control devices of a slider variator, and more particularly those which are used to vary the operating speed of certain power tools.

Dans l'exemple des machines à transmission flexible, des dispositifs sont utilisés pour commander la vitesse de fonctionnement des outils disposés en bout de la transmission flexible. Les mains de l'utilisateur étant souvient occupées par ailleurs, ces dispositifs sont agencés pour être commandés au pied à l'aide d'une pédale. Cependant, une telle commande au pied n'assure pas une grande précision et l'outillage comporte souvent un dispositif supplémentaire pour régler à la main, avec une meilleure précision, la vitesse de fonctionnement des outils. Le fait de devoir disposer de deux dispositifs distincts pour pouvoir faire varier la vitesse de fonctionnement des outils est défavorable à la simplicité d'utilisation de ces outils et au coût de l'outillage.In the example of machines with flexible transmission, devices are used to control the operating speed of the tools arranged at the end of the flexible transmission. The hands of the user being remembered otherwise occupied, these devices are arranged to be controlled by foot using a pedal. However, such a foot control does not ensure high precision and the tool often includes an additional device for adjusting by hand, with better precision, the operating speed of the tools. The fact of having to have two separate devices in order to be able to vary the operating speed of the tools is unfavorable to the simplicity of use of these tools and to the cost of the tools.

Pour éliminer cet inconvénient, le Brevet US-A-4 299 182 propose un dispositif comportant une pédale agissant sur un rhéostat et une série de boutons permettant de mettre sélectivement en circuit des résistances discrètes à la place du rhéostat. Cependant, ces boutons ne permettent pas de réaliser un réglage manuel continu du paramètre commandé. En outre, le circuit compris dans ce dispositif est relativement complexe car il est nécessaire de prévoir un grand nombre de résistances discrètes et des moyens de commutation en plus du rhéostat classiquement inclus dans les dispositifs de commande à pédale.To eliminate this drawback, US Pat. No. 4,299,182 proposes a device comprising a pedal acting on a rheostat and a series of buttons making it possible to selectively switch on discrete resistors in place of the rheostat. However, these buttons do not allow continuous manual adjustment of the parameter controlled. In addition, the circuit included in this device is relatively complex because it is necessary to provide a large number of discrete resistors and switching means in addition to the rheostat conventionally included in pedal control devices.

D'après le Brevet US-A-4 284 018, on connaît un système de commande pour machine à coudre dans lequel un dispositif à pédale classique peut être glissé à l'intérieur d'un boîtier comportant des moyens de commande à main qui permettent d'enfoncer de façon réglable la pédale. Ce système permet certes un réglage manuel continu et précis, mais il n'est pas optimal en matière de coût et de simplicité d'utilisation car il nécessite un boîtier supplémentaire distinct du dispositif à pédale.From patent US-A-4,284,018, a control system for a sewing machine is known in which a conventional pedal device can be slid inside a housing comprising hand control means which allow press the pedal in an adjustable manner. This system certainly allows a continuous and precise manual adjustment, but it is not optimal in terms of cost and simplicity of use because it requires an additional housing separate from the pedal device.

Un dispositif de commande d'un variateur à curseur selon les caractéristiques du préambule de la revendication 1 est connu par CH-A-328 583.A device for controlling a slider variator according to the characteristics of the preamble of claim 1 is known from CH-A-328 583.

La présente invention a ainsi pour but de réaliser un dispositif de commande d'un variateur à curseur, qui permette d'assurer en toute sécurité des fonctions de commande à pied et de commande à main, qui soit d'une structure simple et compacte, et d'une d'utilisation aisée.The object of the present invention is therefore to provide a device for controlling a slider variator, which makes it possible to safely provide foot control and hand control functions, which is of a simple and compact structure, and easy to use.

Plus précisément, la présente invention a pour objet un dispositif de commande d'un variateur à curseur, selon les caractéristiques de la revendication 1 comportant :

  • un boîtier,
  • une gâchette, ladite gâchette pouvant se déplacer en translation entre deux positions par rapport audit boîtier, l'une des deux dites positions constituant une position de repos,
  • des moyens pour appliquer une force élastique sur ladite gâchette pour tendre à la ramener vers ladite position de repos,
  • des moyens pour coupler ladite gâchette avec ledit curseur,
  • un levier commandable au pied,
  • des moyens pour monter ledit levier en rotation par rapport audit boîtier autour d'un premier axe,
  • des moyens pour transformer le mouvement de rotation dudit levier en mouvement de translation de ladite gâchette,
  • un coulisseau,
  • des moyens pour monter ledit coulisseau en translation par rapport audit boîtier, une extrémité dudit coulisseau étant apte à venir au contact de la gâchette, caractérisé par le fait que ledit dispositif comporte en outre
  • des moyens commandables à la main pour commander la translation dudit coulisseau de façon à commander par son extrémité la translation de ladite gâchette entre sa position de repos et son autre position.
More specifically, the subject of the present invention is a device for controlling a slider variator, according to the characteristics of claim 1 comprising:
  • a housing,
  • a trigger, said trigger being able to move in translation between two positions relative to said housing, one of the two said positions constituting a rest position,
  • means for applying an elastic force to said trigger in order to tend to bring it back towards said rest position,
  • means for coupling said trigger with said cursor,
  • a foot-operated lever,
  • means for mounting said lever in rotation relative to said housing about a first axis,
  • means for transforming the rotational movement of said lever into translational movement of said trigger,
  • a slide,
  • means for mounting said slide in translation relative to said housing, one end of said slide being able to come into contact with the trigger, characterized in that said device also comprises
  • means controllable by hand to control the translation of said slide so as to control by its end the translation of said trigger between its rest position and its other position.

D'autres caractéristiques et avantages de la présente invention apparaîtrons au cours de la description suivante donnée en regard des dessins annexés à titre illustratif mais nullement limitatif dans lesquels:

  • La figure 1 représente, sous forme schématique, un dispositif selon l'invention, de commande d'un variateur à curseur,
  • Les figures 2 et 3 sont deux vues en coupe en élévation d'un mode de réalisation d'un dispositif selon l'invention, la coupe étant référencée I-I sur la figure 6,
  • La figure 4 est une vue en perspective d'une partie du dispositif selon les figures 2 et 3,
  • La figure 5 est une vue en perspective des moyens de commande à pied du dispositif selon les figures 2 et 3, et
  • Les figures 6 et 7 sont des vues de dessous du dispositif selon les figures 2 et 3, dans lequel le fond a été retiré.
Other characteristics and advantages of the present invention will appear during the following description given with reference to the drawings annexed by way of illustration but in no way limitative in which:
  • FIG. 1 represents, in diagrammatic form, a device according to the invention, for controlling a slider variator,
  • FIGS. 2 and 3 are two sectional views in elevation of an embodiment of a device according to the invention, the section being referenced II in FIG. 6,
  • FIG. 4 is a perspective view of part of the device according to FIGS. 2 and 3,
  • FIG. 5 is a perspective view of the foot control means of the device according to FIGS. 2 and 3, and
  • Figures 6 and 7 are bottom views of the device according to Figures 2 and 3, in which the bottom has been removed.

Dans un souci de simplification de la description, les mêmes références désignent, sur l'ensemble des figures, les mêmes moyens, quelles que soient les figures sur lesquelles elles apparaissent et quelle que soit la forme de représentation des moyens qu'elles désignent.For the sake of simplification of the description, the same references designate, on all the figures, the same means, whatever the figures on which they appear and whatever the form of representation of the means which they designate.

Le dispositif illustré sur les figures 1 à 7 sert à commander de façon continue la valeur d'un paramètre. Ce paramètre peut être, à titre d'exemple non limitatif, la valeur de la vitesse de rotation d'un outil couplé à un moteur au moyen d'une transmission flexible et le dispositif est alors relié au moteur.The device illustrated in Figures 1 to 7 is used to continuously control the value of a parameter. This parameter can be, by way of nonlimiting example, the value of the speed of rotation of a tool coupled to a motor by means of a flexible transmission and the device is then connected to the motor.

La figure 1 représente, sous forme schématique, un dispositif de commande d'un variateur 2 à curseur 14. Ce dispositif comporte un boîtier 1, une gâchette 3 pouvant se déplacer en translation de façon continue, par exemple sur des rails de guidage ou analogues, entre deux positions par rapport au boîtier, l'une des deux positions constituant une position de repos telle que celle qui est représentée sur cette figure 1.Figure 1 shows, in schematic form, a device for control of a variator 2 with slider 14. This device comprises a housing 1, a trigger 3 which can move in translation continuously, for example on guide rails or the like, between two positions relative to the housing, one of the two positions constituting a rest position such as that which is represented in this figure 1.

Le dispositif comporte aussi des moyens pour appliquer une force élastique sur la gâchette pour tendre à la ramener vers cette position de repos, des moyens 45 pour coupler la gâchette 3 avec le curseur 14, un levier 9, des moyens 46 pour monter ce levier 9 en rotation par rapport au boîtier autour d'un premier axe 17, et des moyens pour transformer le mouvement de rotation du levier en mouvement de translation de la gâchette 3.The device also includes means for applying an elastic force to the trigger to tend to bring it back to this rest position, means 45 for coupling the trigger 3 with the cursor 14, a lever 9, means 46 for mounting this lever 9 in rotation relative to the housing around a first axis 17, and means for transforming the movement of rotation of the lever into movement of translation of the trigger 3.

Il comporte de plus un coulisseau 31, des moyens pour monter le coulisseau 31 en translation par rapport au boîtier, une extrémité 37 du coulisseau étant apte à venir au contact d'une face 40 de la gâchette 3, et des moyens 10 pour commander la translation du coulisseau 31.It further comprises a slider 31, means for mounting the slider 31 in translation relative to the housing, one end 37 of the slider being able to come into contact with a face 40 of the trigger 3, and means 10 for controlling the translation of the slide 31.

Selon un mode de réalisation avantageux, le boîtier 1 comporte au moins un premier logement 8 et un second logement 15 séparés par une paroi dite mitoyenne 42, ou équivalent, le variateur étant disposé dans le premier logement 8 et la gâchette débordant, par sa face 40, dans le second logement 15 en passant par une percée ou analogue 47 réalisée dans cette paroi mitoyenne.According to an advantageous embodiment, the housing 1 comprises at least a first housing 8 and a second housing 15 separated by a so-called dividing wall 42, or equivalent, the variator being disposed in the first housing 8 and the trigger projecting, by its face 40, in the second housing 15 passing through a breakthrough or the like 47 produced in this party wall.

Le second logement 15 comporte au moins une ouverture 25, l'axe de rotation 17 du levier 9 étant situé sensiblement dans le plan de cette ouverture de façon que le levier, ou au moins une partie du levier, constitue une paroi de fermeture de cette ouverture 25, les moyens 28 pour monter le coulisseau en translation par rapport au boîtier étant situés sensiblement sur la paroi 29 de ce second logement qui est sensiblement opposée à l'ouverture 25.The second housing 15 has at least one opening 25, the axis of rotation 17 of the lever 9 being situated substantially in the plane of this opening so that the lever, or at least part of the lever, constitutes a wall for closing this opening 25, the means 28 for mounting the slide in translation relative to the housing being located substantially on the wall 29 of this second housing which is substantially opposite to the opening 25.

Le dispositif comporte en outre des moyens pour effacer le levier 9 de l'ouverture 25 pour permettre l'accès à l'intérieur du second logement 15. Ces moyens d'effacement du levier 9 peuvent être réalisés de nombreuses façons et les figures 2 à 7 en donnent un mode préférentiel.The device further comprises means for erasing the lever 9 from the opening 25 to allow access to the interior of the second housing 15. These means for erasing the lever 9 can be produced in many ways and FIGS. 2 to 7 give a preferred mode.

Selon un mode réalisation avantageux, le levier 9 est constitué par une partie de pédale 16, un élément d'actionnement 18 et des moyens pour monter l'élément d'actionnement en rotation par rapport à la partie de pédale 16 autour d'un deuxième axe 41 sensiblement parallèle au premier axe 17. Les moyens pour transformer le mouvement de rotation du levier 9 en mouvement de translation de la gâchette 3 sont alors constitués par l'extrémité libre 22 de l'élément d'actionnement 18 montée en coopération par glissement avec, avantageusement, la face 40 de la gâchette 3, par exemple une face perpendiculaire à la direction de translation de la gâchette et apte à se déplacer dans le second logement 15.According to an advantageous embodiment, the lever 9 is constituted by a pedal part 16, an actuating element 18 and means for mounting the actuating element in rotation relative to the pedal part 16 around a second axis 41 substantially parallel to the first axis 17. The means for transforming the rotational movement of the lever 9 into translational movement of the trigger 3 are then constituted by the free end 22 of the actuating element 18 mounted in cooperation by sliding with, advantageously, the face 40 of the trigger 3, for example a face perpendicular to the direction of translation of the trigger and able to move in the second housing 15.

Le dispositif comporte en outre avantageusement des moyens pour définir la position angulaire du l'élément d'actionnement 18 par rapport à la partie de pédale 16 et des moyens de rappel élastiques 27 appliqués entre l'élément d'actionnement 18 et la partie de pédale 16.The device also advantageously comprises means for defining the angular position of the actuating element 18 relative to the pedal part 16 and elastic return means 27 applied between the actuating element 18 and the pedal part 16.

Les moyens 10 pour commander la translation du coulisseau comportent des moyens de manoeuvre manuelle pour délivrer un mouvement de rotation autour d'un troisième axe 34 et des moyens pour transformer ce mouvement de rotation en mouvement de translation du coulisseau 31. Les moyens pour transformer le mouvement de rotation en mouvement de translation du coulisseau 31 comportent au moins une came 36 montée rotative autour du troisième axe 34 sensiblement perpendiculaire à la direction de déplacement du coulisseau et au premier axe 17 défini ci-avant et une extrémité du coulisseau agencée pour être apte à glisser sur la tranche 43 de la came 36 réalisée de façon que la distance entre chaque point de sa tranche et le troisième axe de rotation 34 varie, d'un point à un autre, suivant une fonction croissante continue.The means 10 for controlling the translation of the slider comprise manual operating means for delivering a rotational movement around a third axis 34 and means for transforming this rotational movement into translational movement of the slider 31. The means for transforming the rotational movement in translational movement of the slide 31 comprise at least one cam 36 rotatably mounted around the third axis 34 substantially perpendicular to the direction of movement of the slide and the first axis 17 defined above and one end of the slide arranged to be suitable to slide on the edge 43 of the cam 36 produced so that the distance between each point of its edge and the third axis of rotation 34 varies, from one point to another, according to a continuous increasing function.

Les figures 2 à 7 représentent un mode de réalisation préférentiel d'un dispositif selon l'invention tel que schématiquement représenté sur la figure 1.FIGS. 2 to 7 represent a preferred embodiment of a device according to the invention as schematically represented in FIG. 1.

Le dispositif réalisé selon le mode représenté sur les figures 2 à 7 comprend en effet un boîtier 1 dans lequel est monté le variateur 2, la gâchette 3, la partie inférieure du boîtier 1 étant fermée par une plaque de fond 4 qui n'est pas représentée sur les figures 6 et 7 pour montrer l'intérieur du boîtier 1. Des pieds 6 en matière amortissante sont fixés sous la plaque 4.The device produced according to the mode shown in Figures 2 to 7 in fact comprises a housing 1 in which is mounted the variator 2, the trigger 3, the lower part of the housing 1 being closed by a bottom plate 4 which is not shown in FIGS. 6 and 7 to show the interior of the housing 1. Feet 6 of damping material are fixed under the plate 4.

Le variateur 2 peut-être constitué, par exemple, par un rhéostat dont la résistance varie selon la position du curseur 14 et donc de la gâchette 3, pour définir la valeur de la vitesse commandée. Toutefois, ce variateur peut être électronique à circuit hybride comportant un triac commandé par la gâchette 3.The variator 2 can be constituted, for example, by a rheostat whose resistance varies according to the position of the cursor 14 and therefore of the trigger 3, to define the value of the commanded speed. However, this variator can be electronic with a hybrid circuit comprising a triac controlled by trigger 3.

l'our raccorder le dispositif à la machine à transmission flexible, il est prévu un connecteur de sortie 7 relié électriquement au variateur 2.to connect the device to the flexible transmission machine, an output connector 7 is electrically connected to the variator 2.

Le variateur 2 est maintenu en place par des nervures appropriées 11, 12. La gâchette 3 est sollicitée vers l'extérieur du premier logement 8 par des ressorts de rappel 13 indiqués en tirets sur les figures 6 et 7.The variator 2 is held in place by appropriate ribs 11, 12. The trigger 3 is urged towards the outside of the first housing 8 by return springs 13 indicated in dashes in FIGS. 6 and 7.

Dans une réalisation possible, par la partie de pédale 16 définie ci-avant, le levier 9 constitue un moyen de commande à pied. La partie de pédale 16 est articulée sur le boîtier 1 autour du premier axe 17 avantageusement perpendiculaire à la direction de déplacement de la gâchette 3. L'axe 17 est monté dans deux ouvertures 19 ménagées dans le boîtier 1 (figure 4) et l'élément d'actionnement 18 est monté pivotant autour de cet axe 17, les premier et deuxième axes étant alors confondus. Une cale 21 est placée entre la face inférieure 20 de la partie de pédale 16 et l'élément d'actionnement 18 et constitue les moyens pour définir la position angulaire de l'élément d'actionnement 18 par rapport à la partie de pédale 16. Lorsque la partie de pédale 16 est rabattue dans sa position illustrée sur la figure 2, l'élément d'actionnement 18 a une extrémité 22 appliquée en position de glissement sur la face 40 de la gâchette 3, tandis que son extrémité opposée 23 est appliquée contre la cale 21. Lorsque la partie de pédale 16 est enfoncée, l'élément d'actionnement 18 fait levier pour actionner la gâchette 3 à l'encontre des ressorts de rappel 13 et pour modifier la position du curseur 14, et donc, dans l'exemple choisi de l'utilisation du dispositif, pour faire varier la vitesse du moteur actionnant l'outil.In one possible embodiment, by the pedal part 16 defined above, the lever 9 constitutes a foot control means. The pedal part 16 is articulated on the housing 1 around the first axis 17 advantageously perpendicular to the direction of movement of the trigger 3. The axis 17 is mounted in two openings 19 formed in the housing 1 (FIG. 4) and the actuating element 18 is pivotally mounted about this axis 17, the first and second axes then being combined. A shim 21 is placed between the underside 20 of the pedal part 16 and the actuating element 18 and constitutes the means for defining the angular position of the actuating element 18 relative to the pedal part 16. When the pedal part 16 is folded back into its position illustrated in FIG. 2, the actuating element 18 has one end 22 applied in sliding position on the face 40 of the trigger 3, while its opposite end 23 is applied against the wedge 21. When the pedal part 16 is depressed, the actuating element 18 leverages to actuate the trigger 3 against the return springs 13 and to modify the position of the cursor 14, and therefore, in the chosen example of the use of the device, to vary the speed of the motor operating the tool.

Dans le mode de réalisation selon les figures 2 à 7, les moyens de manoeuvre manuelle pour délivrer un mouvement de rotation autour du troisième axe 34 sont constitués par un bouton rotatif 32 accessible sur la surface 33 du boîtier 1 qui s'étend sensiblement au-dessus du coulisseau 31 et au-dessous de la partie de pédale 16. Le bouton 32 peut pivoter autour de l'axe 34 qui est perpendiculaire à la surface 33 et la came 36 est solidaire de ce bouton, mais située sous la surface 33 de façon que sa tranche soit appliquée contre l'extrémité du coulisseau 31 opposée à celle qui est en contact avec la gâchette.In the embodiment according to Figures 2 to 7, the manual operating means for delivering a rotational movement around the third axis 34 are constituted by a rotary button 32 accessible on the surface 33 of the housing 1 which extends substantially au- above the slide 31 and below the pedal part 16. The button 32 can pivot around the axis 34 which is perpendicular to the surface 33 and the cam 36 is integral with this button, but located under the surface 33 of so that its edge is applied against the end of the slide 31 opposite to that which is in contact with the trigger.

Comme il apparaît sur les figures 6 et 7, la came 36 est réalisée de façon que la distance entre chaque point de sa tranche et le troisième axe de rotation 34 varie, d'un point à un autre, suivant une fonction croissante (ou décroissante) continue.As it appears in FIGS. 6 and 7, the cam 36 is produced so that the distance between each point of its edge and the third axis of rotation 34 varies, from one point to another, according to an increasing (or decreasing) function ) keep on going.

De plus, pour que le coulisseau 31 agisse efficacement sur la gâchette 3, la surface de contact 30 entre la came 36 et le coulisseau 31 est toujours sensiblement perpendiculaire à la direction de déplacement du coulisseau 31 et de la gâchette 3. Lorsque l'utilisateur manoeuvre le bouton rotatif 32 de façon à entraîner en rotation la came 36 depuis sa position dans laquelle le coulisseau est en contact avec son point qui est le plus près de l'axe 34 jusqu'à sa position extrême représentée à la figure 7, dans laquelle cette extrémité du coulisseau est en contact avec le point de la tranche de la came le plus éloigné de l'axe 34, la rotation de la came 36 provoque une translation du coulisseau 31 qui actionne la gâchette à l'encontre des ressorts de rappel 13. Lorsque l'utilisateur manoeuvre le bouton rotatif 32 dans l'autre sens, les ressorts de rappel 13 repoussent progressivement la gâchette 3 et le coulisseau 31. La came 36 et le coulisseau 31 comprennent des butées 35 pour limiter la rotation de la came 36.In addition, for the slider 31 to act effectively on the trigger 3, the contact surface 30 between the cam 36 and the slider 31 is always substantially perpendicular to the direction of movement of the slider 31 and of the trigger 3. When the user operates the rotary button 32 so as to rotate the cam 36 from its position in which the slide is in contact with its point which is closest to the axis 34 to its extreme position shown in FIG. 7, in which this end of the slide is in contact with the point of the edge of the cam furthest from the axis 34, the rotation of the cam 36 causes a translation of the slide 31 which actuates the trigger against the return springs 13. When the user operates the rotary button 32 in the other direction, the return springs 13 gradually push back the trigger 3 and the slide 31. The cam 36 and the slide 31 comprise stops 35 to limit the rotation of the cam 36.

On voit, sur les figures 2, 3, 4, 6 et 7, que le coulisseau 31 est appliqué contre la gâchette 3 par son extrémité 37 comportant avantageusement deux éléments d'appui dépassant au-dessus de la surface 33 à travers une fenêtre 39 prévue dans celle-ci. Les deux éléments d'appui 37 sont séparés par un intervalle 38 d'une largeur légèrement supérieure à celle de l'élément d'actionnement 18, et situé au droit de cet élément d'actionnement 18 relativement à l'axe 17. L'intervalle 38 laisse une zone de la gâchette 3 exposée pour recevoir l'extrémité libre 22 de l'élément d'actionnement 18.We see, in Figures 2, 3, 4, 6 and 7, that the slide 31 is applied against the trigger 3 by its end 37 advantageously comprising two support elements protruding above the surface 33 through a window 39 provided for therein. The two support elements 37 are separated by an interval 38 of a width slightly greater than that of the actuating element 18, and located at the right of this actuating element 18 relative to the axis 17. The interval 38 leaves an area of the trigger 3 exposed to receive the free end 22 of the actuating element 18.

Dans le mode de réalisation illustré, l'articulation de la partie de pédale 16 sur le boîtier 1 permet à la partie de pédale d'être placée dans une position relevée illustrée sur la figure 2. Dans cette position, la surface 33 et le bouton 32 deviennent accessibles. Le dispositif selon l'invention peut donc être utilisé soit en mode dit "de commande à pied", avec la partie de pédale 16 rabattue dans la position illustrée sur la figure 2, soit en mode dit "de commande à main", avec la partie de pédale relevée dans la position illustrée sur la figure 3. Ces deux modes d'utilisation du dispositif permettent de commander avec précision la vitesse de rotation d'un outil suivant une courbe de valeurs continue.In the illustrated embodiment, the articulation of the pedal part 16 on the housing 1 allows the pedal part to be placed in a raised position illustrated in FIG. 2. In this position, the surface 33 and the button 32 become accessible. The device according to the invention can therefore be used either in so-called "foot control" mode, with the pedal part 16 folded in the position illustrated in FIG. 2, or in so-called "hand control" mode, with the pedal part raised in the position illustrated in FIG. 3. These two modes of use of the device make it possible to precisely control the speed of rotation of a tool according to a continuous value curve.

Pour limiter de façon réglable la course de la gâchette 3 lors de l'utilisation de la partie de pédale 16, l'épaisseur de la cale 21 est réglable. Cette cale 21 a une forme générale cylindrique dont une face est appliquée contre la face inférieure 20 de la partie de pédale 16 et la face opposée reçoit l'extrémité 23 de l'élément d'actionnement 18. Cette dernière face de la cale 21 comporte, près de sa périphérie, plusieurs encoches radiales 24 de profondeurs différentes et de largeur correspondant à celle de l'extrémité 23 de l'élément d'actionnement 18. La cale 21 est montée pivotante sur la face inférieure 20 de la partie de pédale 16 autour d'un axe 26 perpendiculaire à cette face 20 et décalé par rapport à la position de l'élément d'actionnement 18, de façon que l'extrémité 23 de ce dernier s'engage dans l'une des encoches 24 de la cale 21.To adjustably limit the stroke of the trigger 3 when using the pedal part 16, the thickness of the shim 21 is adjustable. This shim 21 has a generally cylindrical shape, one face of which is applied against the lower face 20 of the pedal part 16 and the opposite face receives the end 23 of the actuating element 18. This last face of the shim 21 comprises , near its periphery, several radial notches 24 of different depths and width corresponding to that of the end 23 of the actuating element 18. The wedge 21 is pivotally mounted on the underside 20 of the pedal part 16 about an axis 26 perpendicular to this face 20 and offset relative to the position of the actuating element 18, so that the end 23 of the latter engages in one of the notches 24 of the wedge 21.

Dans le mode de réalisation selon les figures 2 à 7, les moyens de rappel élastiques 27 appliqués entre l'élément d'actionnement 18 et la partie de pédale 16 sont constitués par un ressort hélicoïdal disposé autour de l'axe 17 et sollicitant en rotation l'élément d'actionnement 18 vers la cale 21, de façon à maintenir l'extrémité 23 de l'élément 18 dans l'encoche sélectionnée de la cale 21 quelle que soit la position de la partie de pédale 16. C'est ainsi que l'action du ressort hélicoïdal 27 sur l'élément d'actionnement 18 devra être supérieure à l'action, sur cet élément, des ressorts de rappel 13 lorsque la gâchette revient vers sa position de repos. Pour régler la position angulaire de l'élément 18 par rapport à la partie de pédale 16, il suffit de modifier le réglage de la cale 21 de la façon suivante. L'utilisateur soulève la pédale jusqu'à la position relevée illustrée sur la figure 3, écarte manuellement l'élément 18 de la cale 21 à l'encontre du ressort 27, fait tourner la cale 21 autour de son axe 26 jusqu'à amener l'encoche sélectionnée 24 en face de l'extrémité 23 de l'élément 18, et relâche l'élément 18 qui est alors ramené vers la partie de pédale 16 par le ressort 27. La profondeur de l'encoche sélectionnée 24 définit la valeur maximum de la course de la gâchette 3, et donc la valeur maximum de la variation de la vitesse de rotation de l'outil.In the embodiment according to FIGS. 2 to 7, the elastic return means 27 applied between the actuating element 18 and the part of pedal 16 are constituted by a helical spring arranged around the axis 17 and urging in rotation the actuating element 18 towards the shim 21, so as to maintain the end 23 of the element 18 in the selected notch of the shim 21 whatever the position of the pedal part 16. This is how the action of the helical spring 27 on the actuating element 18 must be greater than the action, on this element, of the springs reminder 13 when the trigger returns to its rest position. To adjust the angular position of the element 18 relative to the pedal part 16, it suffices to modify the adjustment of the shim 21 as follows. The user raises the pedal to the raised position illustrated in FIG. 3, manually spreads the element 18 of the wedge 21 against the spring 27, rotates the wedge 21 around its axis 26 until it brings the selected notch 24 opposite the end 23 of the element 18, and releases the element 18 which is then brought back to the pedal part 16 by the spring 27. The depth of the selected notch 24 defines the value maximum of the travel of the trigger 3, and therefore the maximum value of the variation of the speed of rotation of the tool.

Claims (7)

  1. Device for driving a slider (14) control (2), comprising:
    - a box (1),
    - a trigger (3), said trigger (3) being capable of moving between two positions relative to said box (1), one of said two positions constituting a rest position,
    - means (13) for applying a resilient force on said trigger (3) for tending to return it towards said rest position,
    - means (45) for coupling said trigger to said slider (14),
    - a foot controllable lever (9),
    - means (46) for mounting said lever (9) to rotate relative to said box (1) about a first axis (17),
    - means (18, 22, 41) for transforming the rotary motion of said lever (9) into translation motion applied to said trigger (3),
    - a sliding block (31),
    - means (28) for mounting said sliding block (31) to move in translation relative to said box (1), one end (37) of said sliding block being capable to come into contact with said trigger (3),
    characterized by the fact that said device further comprises hand controllable means (10, 36) for controlling the translation of said sliding block (31) so as to control via its end (37) the translation of said trigger (3) between its rest position and its other position.
  2. Device according to claim 1, characterized by the fact that said box (1) includes at least a first housing (8) and a second housing (15) separated by a deviding wall (42), said control (2) being disposed in the first housing (8) and said trigger (3) extending into the second housing (15), said second housing (15) including at least one opening (25), the axis of rotation (17) of said lever (9) being situated substantially in the plane of said opening (25) and the means (28) for mounting said sliding block (31) to move in translation relative to said box being situated substantially on the wall (29) of said second housing (15) that is substantially opposite to said opening (25), said lever (9) substantially constituting a wall for closing said opening (25) of said second housing (15), and means for retracting said lever (9) to provide access to the inside of said second housing (15).
  3. Device according to one of claims 1 and 2, characterized by the fact that said lever (9) is constituted by a pedal portion (16), an actuator element (18) and means for mounting said actuator element to rotate relative to said pedal portion about a second axis (41) substantially parallel to said first axis (17, said means for transforming the rotary motion of said lever (9) into translation motion of said trigger (3) being constituted by the free end (22) of the actuator element (18) mounted in sliding co-operation with a face (40) of said trigger (3).
  4. Device according to claim 3, characterized by the fact that it further includes means (21) for defining the angular position of said actuator element (18) relative to said pedal portion (16) and resilient return means (27) pressed against said actuator element and said pedal portion.
  5. Device according to one of claims 1 to 4, characterized by the fact that the means (10, 36) for controlling translation of said sliding block (31) include manual drive means (32) for imparting rotary motion about a third axis (34) substantially perpendicular to said first axis (17) and to the displacement of said sliding block, and means for transforming said rotary motion into translation motion of said sliding block (31).
  6. Device according to claim 5, characterized by the fact that the manual drive means (32) for imparting rotary motion about said third axis (34) include a rotary knob (32), and by the fact that the means for transforming the rotary motion into translation motion of said sliding block include a cam (36) secured to said rotary knob (32), said cam (36) being made in such a manner that the distance between each point of its edge (43) and the axis of rotation (34) varies, from one point to another, in compliance with a continuously increasing function, the end of the sliding block (31) opposite to its end (37) which is in contact with the trigger (3) being in sliding co-operation with the edge (43) of said cam (36).
  7. Device according to one of claims 1 to 6, characterized by the fact that said first (17) and second (41) axes coincide.
EP93400459A 1992-03-06 1993-02-23 Actuator device for a slider control Expired - Lifetime EP0559521B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9202730 1992-03-06
FR9202730A FR2688326A1 (en) 1992-03-06 1992-03-06 CONTROL DEVICE.

Publications (2)

Publication Number Publication Date
EP0559521A1 EP0559521A1 (en) 1993-09-08
EP0559521B1 true EP0559521B1 (en) 1996-07-24

Family

ID=9427453

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Application Number Title Priority Date Filing Date
EP93400459A Expired - Lifetime EP0559521B1 (en) 1992-03-06 1993-02-23 Actuator device for a slider control

Country Status (4)

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US (1) US5321383A (en)
EP (1) EP0559521B1 (en)
DE (1) DE69303741T2 (en)
FR (1) FR2688326A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB0019685D0 (en) * 2000-08-11 2000-09-27 Laker Kirk A Foot operated positional controller for a computer
JP6871730B2 (en) * 2016-12-13 2021-05-12 蛇の目ミシン工業株式会社 Sewing machine foot controller
FR3096910B1 (en) * 2019-06-05 2021-05-14 Safran Improved method of forming a wax model for a turbine blade.

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2732729A (en) * 1956-01-31 Throttle controller for automotive
US2484592A (en) * 1946-10-08 1949-10-11 Houston B Rodd Adjustable accelerator pedal
DE948031C (en) * 1953-07-19 1956-08-23 Richard Bergmann Actuating device for devices used to accelerate or decelerate motor vehicles
CH328583A (en) * 1955-02-25 1958-03-15 Scintilla Ag Device for starting and regulating the speed of single-phase series motors for driving machines with a load that changes rapidly over time
CH491479A (en) * 1969-05-14 1970-05-31 Mefina Sa Foot control device with variable resistance for adjusting the speed of an electric motor
US4046049A (en) * 1974-06-14 1977-09-06 Norlin Music, Inc. Foot control apparatus for electronic musical instrument
DE2535420C3 (en) * 1975-08-08 1978-12-07 Wabco Westinghouse Gmbh, 3000 Hannover Actuating device with angle-adjustable actuating element and various transmission ratios
DE2649251A1 (en) * 1976-10-29 1978-05-03 Georgii Kobold August Heine Kg COMMAND GENERATOR FOR ELECTRIC POSITIONING DRIVES
GB1543470A (en) * 1977-02-07 1979-04-04 Towmotor Corp Comfort angle adjustment for vehicle pedal
JPS603821Y2 (en) * 1978-07-28 1985-02-02 蛇の目ミシン工業株式会社 Dual-purpose sewing machine speed control device
CH645217A5 (en) * 1978-08-25 1984-09-14 Pfaff Haushaltmasch Foot-operated starter for electric motors
US4284018A (en) * 1979-11-02 1981-08-18 The Singer Company Conversion assembly for sewing machine speed controller
DE8211184U1 (en) * 1982-04-20 1982-09-23 Hans Bernstein Spezialfabrik für Schaltkontakte GmbH & Co, 4952 Porta Westfalica Safety foot switch with a protective cover attached to a base plate
DE3234479A1 (en) * 1982-09-17 1984-03-22 Wabco Westinghouse Fahrzeugbremsen GmbH, 3000 Hannover GAS PEDAL FOR A ROAD VEHICLE

Also Published As

Publication number Publication date
EP0559521A1 (en) 1993-09-08
DE69303741D1 (en) 1996-08-29
FR2688326A1 (en) 1993-09-10
DE69303741T2 (en) 1997-03-06
US5321383A (en) 1994-06-14

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