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EP2005455A1 - Rotary control device for moving vehicle remote control - Google Patents

Rotary control device for moving vehicle remote control

Info

Publication number
EP2005455A1
EP2005455A1 EP07731125A EP07731125A EP2005455A1 EP 2005455 A1 EP2005455 A1 EP 2005455A1 EP 07731125 A EP07731125 A EP 07731125A EP 07731125 A EP07731125 A EP 07731125A EP 2005455 A1 EP2005455 A1 EP 2005455A1
Authority
EP
European Patent Office
Prior art keywords
elastic means
elastic
movable
equilibrium position
stop
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.)
Granted
Application number
EP07731125A
Other languages
German (de)
French (fr)
Other versions
EP2005455B1 (en
Inventor
Thomas Chanteloup
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.)
Bosch Rexroth DSI SAS
Original Assignee
Bosch Rexroth DSI SAS
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 Bosch Rexroth DSI SAS filed Critical Bosch Rexroth DSI SAS
Publication of EP2005455A1 publication Critical patent/EP2005455A1/en
Application granted granted Critical
Publication of EP2005455B1 publication Critical patent/EP2005455B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H23/00—Tumbler or rocker switches, i.e. switches characterised by being operated by rocking an operating member in the form of a rocker button
    • H01H23/28—Tumbler or rocker switches, i.e. switches characterised by being operated by rocking an operating member in the form of a rocker button with three operating positions
    • H01H23/30—Tumbler or rocker switches, i.e. switches characterised by being operated by rocking an operating member in the form of a rocker button with three operating positions with stable centre positions and one or both end positions unstable
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05G—CONTROL DEVICES OR SYSTEMS INSOFAR AS CHARACTERISED BY MECHANICAL FEATURES ONLY
    • G05G5/00—Means for preventing, limiting or returning the movements of parts of a control mechanism, e.g. locking controlling member
    • G05G5/05—Means for returning or tending to return controlling members to an inoperative or neutral position, e.g. by providing return springs or resilient end-stops
    • 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
    • G05G1/04—Controlling members for hand actuation by pivoting movement, e.g. levers
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H23/00—Tumbler or rocker switches, i.e. switches characterised by being operated by rocking an operating member in the form of a rocker button
    • H01H23/02—Details
    • H01H23/12—Movable parts; Contacts mounted thereon
    • H01H23/14—Tumblers
    • 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
    • Y10T74/20—Control lever and linkage systems
    • Y10T74/20396—Hand operated
    • Y10T74/20474—Rotatable rod, shaft, or post

Definitions

  • the present invention relates to a rotary control device, intended in particular to be fixed on a handle of a remote mobile machine, in particular machinery, agricultural machinery or handling.
  • a mobile device remote control comprises, in known manner, a handle movable in at least one degree of freedom with respect to a support, the movement of this handle allowing an operator to control at least one receiving member outside the remote control.
  • a first type of device comprises two members, movable in rotation relative to each other about an axis, formed by a body intended to be fixed on a handle of the remote control on the one hand, and a part of on the other hand, the device also comprising elastic return means for returning the actuating portion in the vicinity of an equilibrium position relative to the body from which a user can drive the actuating part in two opposite directions with respect to the equilibrium position.
  • the elastic means comprise a winding and two movable branches, each movable branch being intended to cooperate with:
  • the two driving abutments and the two locking abutments form two pairs of abutments belonging to the two members movable in rotation with respect to one another, the two movable arms being in position equilibrium, in contact with two stops of a first of the two pairs, the elastic means being immobilized relative to a first member.
  • This type of device makes it possible to provide a simple system for returning to the equilibrium position.
  • a residual clearance between the second member and the elastic means causes a free movement of the actuating part, which is not therefore subject to the action of the return means on a part of its stroke.
  • FIGS. 1 and 2 schematically illustrate the relative positioning, in equilibrium position, of the body C with two blocking stops B1 and B2, of the actuating part A with two drive stops B3 and B4, and elastic means E having a single winding and two movable legs.
  • a residual clearance J1 or J2 respectively appears, according to the configurations, between the actuating part and the elastic means, or between the body and the elastic means.
  • document FR2823368 describes such a type of double-winding spring. This type of device thus gives satisfaction with regard to the removal of the residual clearance.
  • the structure of the spring, as well as those of the body and the actuating portion are however more complex than those exposed for the first type of spring.
  • the present invention relates to a device of the first type described above, comprising first elastic means corresponding to the elastic means of a device of this first type, and characterized in that the device also comprises second resilient means taking support, in equilibrium position, on the one hand on a movable branch of the first elastic means, and on the other hand against a bearing portion of the second member.
  • the movable branches of the first elastic means are both in contact against the two stops of a first member, and thus immobilized.
  • the second elastic means which are supported on the first elastic means, allow, in equilibrium position, to exert an elastic force on the second member, exerted between a stop of this second member, and a bearing portion of this second organ.
  • the first member and the first elastic means are thus immobilized relative to each other, the second member is immobilized by the second elastic means, bearing on the first elastic means.
  • the device uses elastic means with a simple winding as in the first type of spring described, to maintain a simple spring structure.
  • the second elastic means have a stiffness lower than the stiffness of the first elastic means.
  • the difference in stiffness between the first and the second elastic means makes it possible to prevent the stresses exerted by the second elastic means from disturbing the holding in position of the first elastic means by the two stops of the first member.
  • the second elastic means comprise an elastic tab connected to a movable branch of the first elastic means.
  • the elastic tab is connected by a bend to the end of a movable branch of the first elastic means.
  • the bearing portion is constituted by an additional stop located on the second member.
  • the bearing portion is constituted by a drive or locking stop, the second elastic means extending obliquely with respect to a plane containing the axis of rotation.
  • the device comprises an axial abutment limiting the translational movement of the winding in the direction of the axis of rotation.
  • the second elastic means are fixed on the second member.
  • the second elastic means comprises an elastomer element.
  • Figure 1 is a schematic view of a first device according to the state of the art.
  • Figure 2 is a schematic view of a second device according to the state of the art.
  • Figure 3 is a perspective view of a first device according to the invention, a part of this device having been cut.
  • FIG. 4 is a sectional view, on top, of the device of FIG.
  • FIG. 5 is a front view of the elastic means of the device of FIG. 1.
  • FIG. 6 is a perspective view of the elastic means of FIG.
  • Figure 7 is a view of a second device according to the invention.
  • a rotary control device for a mobile equipment remote control comprises, in known manner, a body 2 intended to be fixed on a handle of the remote control, not shown, the body 2 comprising a first part or base 3 intended to be fixed on the handle by its base, which comprises fixing means 4, in particular slots allowing the passage of fixing screws, and a second part or cover 5, intended for be firmly attached to the base 3.
  • the device comprises an actuating part 6 movable in rotation about an axis A with respect to the body 2, comprising in this embodiment: a cap 7 outside the body 2, intended in particular to be actuated in contact with a a user's finger, a pivot 8, secured in movement by its ends of the cabochon 7, rotatable in a through-housing formed between the base 3 and the cover 4 of the body 2, a permanent magnet 9, integral in movement of the pivot 8, and contained in the housing between the base 3 and the cover 4.
  • Detection means constituted by a Hall effect sensor 10, are fixed on the base 4, and detect the movement of the magnet 9 facing each other, in order to generate an electrical control signal derived from the movement of the actuating part 6.
  • the device comprises a spring 12 which comprises first elastic return means 13 for returning the actuating portion 6 to an equilibrium position E from which a user can drive the actuating part in two opposite directions D1, D2 with respect to the equilibrium position E, by contact with the cap 7.
  • the first elastic means 13, of a first stiffness k1 comprise a single winding 14, whose loops surround the axis of rotation A, and two movable branches 15, 16 in the extension of the two ends of the winding 14.
  • the first movable branch 15 is intended to cooperate with: a first abutment 17 provided on the driving cap 7 of the driving portion 6 for driving the first movable branch 15 in a first direction D1.
  • a first locking stop 19 provided on the body 2 intended to limit its stroke and serve as a support on the body when the actuating portion is driven in a second direction D2.
  • the second movable branch 16 is intended to cooperate with: a second stop 18 for driving formed on the cap 7 of the driving part 6 allowing driving the second movable branch 16 in the second direction D2. a second stop 20 formed on the body 2 to limit its stroke and serve as a support on the body when the actuating portion is driven in a first direction D1.
  • the spring 12 also comprises second elastic means of a second stiffness k2, lower than the first stiffness, constituted by an elastic tab 22 connected by a bend 23 at the end of the second movable arm 16 of the first elastic means 13.
  • tab 22 is contained in a plane passing through the axis of rotation A of the actuating part 6.
  • the second elastic means are supported on the one hand on the second movable branch 16 of the first elastic means, and on the other hand are intended to bear against a bearing portion of the actuating portion 6, constituted by a stop additional 24 located on the actuating part.
  • the positioning of the additional stop 24 relative to the second elastic means 22 is such that during a rotation in the direction D1, the additional stop 24 is in contact with the second elastic means 22 before the second drive stop 18 is in contact with the second movable branch 16.
  • the movable branches 15, 16 of the first elastic means 13 are both in contact against the two locking stops 19, 20 of the body 2, and thus immobilized.
  • the second elastic means 22, which bear on the first elastic means 13, exerts an elastic force on the actuating part 6, exerted between: the first driving abutment 17 on which bears the first movable branch 15 forming part of first resilient means 13 immobilized, and the additional stop 24, on which bears the elastic tab 22.
  • the second elastic means in the form of an elastic tab, thus makes it possible to eliminate the residual clearance.
  • the operation is similar to that of a device according to the first known type described above.
  • the additional stop 24 is in contact with the end of the elastic tab 22, which bends, in particular thanks to its elasticity k2 less than that of the first elastic means 13, and then once that the elastic tab 22 is folded, the second driving abutment 18 comes into contact with the second movable arm 16, substantially at the level of the bend 23, and drives this second movable arm 16.
  • the two movable arms 15, 16 as well as the stops are arranged asymmetrically with respect to a plane of symmetry of the actuating part in equilibrium position.
  • This arrangement makes it possible to use a body of known shape, which has a cylindrical shape only on a limited part of its upper surface, around which the elastic tab 22 can move in rotation.
  • the device comprises an axial stop not shown, limiting the translational movement of the winding 14 and the entire spring in the direction of the axis of rotation A of the actuating portion 6.
  • the bearing portion is constituted by the extension of the second drive abutment, the support branch having an oblique profile, with respect to a plane passing through the axis of rotation A of the part actuator 6.
  • the second elastic means may be constituted by an elastomer element 25, fixed on the actuating portion 6, and intended to be, in equilibrium position, positioned in compression between a bearing portion of the actuating part 6 and a movable branch of the first elastic means.
  • the second elastic means must be supported on a support portion of the body to allow to constrain the device in equilibrium position.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Mechanical Control Devices (AREA)
  • Toys (AREA)
  • Transmission Devices (AREA)

Abstract

The invention concerns rotary control device for remote control of a moving vehicle, particularly a civil engineering works vehicle, an agricultural implement or a goods handling vehicle comprising two parts rotatably mobile relative to one another about an axis (A) and formed of a body (2) intended to be fixed to the handle of the remote control and an actuating part (6), the device also comprising first elastic means (13) including a winding (14) and two mobile branches (15, 16), the first actuating part being immobilized, in a position of equilibrium (P), with respect to a first member (2, 6). The device further comprises second elastic means (22) supported, on a mobile branch (15, 16) of the first elastic means (13) and, designed, in the position of equilibrium, to bear against a support portion (24) of the second member(2, 6).

Description

DISPOSITIF DE CONTROLE ROTATIF POUR UNE TELECOMMANDE D' ENGIN MOBILE . ROTARY CONTROL DEVICE FOR MOBILE DEVICE REMOTE CONTROL.
La présente invention concerne un dispositif de contrôle rotatif, destiné en particulier à être fixé sur une poignée d'une télécommande d'engin mobile, en particulier engin de travaux publics, engin agricole ou de manutention.The present invention relates to a rotary control device, intended in particular to be fixed on a handle of a remote mobile machine, in particular machinery, agricultural machinery or handling.
Une télécommande d'engin mobile comporte, de façon connue, une poignée mobile selon au moins un degré de liberté par rapport à un support, le mouvement de cette poignée permettant à un opérateur de commander au moins un organe récepteur extérieur à la télécommande.A mobile device remote control comprises, in known manner, a handle movable in at least one degree of freedom with respect to a support, the movement of this handle allowing an operator to control at least one receiving member outside the remote control.
Afin d'augmenter le nombre d'organes récepteurs pouvant être commandés ou de permettre de varier les instructions de commande, il est connu d'ajouter sur la télécommande des dispositifs de contrôle pouvant être commandés par les doigts de l'utilisateur, et en particulier des dispositifs de type proportionnel.In order to increase the number of receiving members that can be controlled or to vary the control instructions, it is known to add on the remote control devices that can be controlled by the fingers of the user, and in particular proportional type devices.
Un premier type de dispositif comporte deux organes, mobiles en rotation l'un par rapport à l'autre autour d'un axe, formés par un corps destiné à être fixée sur une poignée de la télécommande d'une part, et une partie d'actionnement d'autre part, le dispositif comportant également des moyens de rappel élastiques permettant de ramener la partie d'actionnement au voisinage d'une position d'équilibre par rapport au corps à partir de laquelle un utilisateur peut entraîner la partie d'actionnement dans deux directions opposées par rapport à la position d'équilibre.A first type of device comprises two members, movable in rotation relative to each other about an axis, formed by a body intended to be fixed on a handle of the remote control on the one hand, and a part of on the other hand, the device also comprising elastic return means for returning the actuating portion in the vicinity of an equilibrium position relative to the body from which a user can drive the actuating part in two opposite directions with respect to the equilibrium position.
Les moyens élastiques comprennent un enroulement et deux branches mobiles, chaque branche mobile étant destinée à coopérer avec :The elastic means comprise a winding and two movable branches, each movable branch being intended to cooperate with:
- une butée d'entraînement ménagée sur la partie d'actionnement permettant l'entraînement de la branche mobile dans une direction, eta driving abutment provided on the actuating part for driving the movable branch in one direction, and
- une butée de blocage ménagée sur le corps destinée à servir d'appui sur le corps lorsque la partie d'actionnement est entraînée dans une autre direction.- A locking stop arranged on the body intended to serve as a support on the body when the actuating portion is driven in another direction.
Les deux butées d'entraînement et les deux butées de blocage forment deux couples de butées appartenant aux deux organes mobiles en rotation l'un par rapport à l'autre, les deux branches mobiles étant, en position d'équilibre, au contact de deux butées d'un premier des deux couples, les moyens élastiques étant immobilisés par rapport à un premier organe.The two driving abutments and the two locking abutments form two pairs of abutments belonging to the two members movable in rotation with respect to one another, the two movable arms being in position equilibrium, in contact with two stops of a first of the two pairs, the elastic means being immobilized relative to a first member.
Ce type de dispositif permet de fournir un système simple de retour à la position d'équilibre. Toutefois, il existe dans ce dispositif, en position d'équilibre un jeu résiduel, entre le second organe et les moyens élastiques. Ce jeu résiduel cause un mouvement libre de la partie d'actionnement, qui n'est pas donc pas soumise à l'action des moyens de rappel sur une partie de sa course.This type of device makes it possible to provide a simple system for returning to the equilibrium position. However, there exists in this device, in equilibrium position, a residual clearance between the second member and the elastic means. This residual clearance causes a free movement of the actuating part, which is not therefore subject to the action of the return means on a part of its stroke.
Ce jeu résiduel peut être diminué par un dimensionnement approprié de l'écart entre les butées du second organe. Le dimensionnement précis de cet écart augmente toutefois le prix des pièces utilisées. De plus, un enroulement unique ne permet pas d'obtenir un contact fiable simultané des moyens élastique avec les quatre butées des deux couples de butées appartenant respectivement aux deux organes. Les figures 1 et 2 illustrent de façon schématique le positionnement relatif, en position d'équilibre, du corps C avec deux butées de blocage B1 et B2, de la partie d'actionnement A avec deux butées d'entraînement B3 et B4, et des moyens élastique E présentant un enroulement unique et deux branches mobiles. Un jeu J1 ou J2 résiduel apparaît respectivement, suivant les configurations, entre la partie d'actionnement et les moyens élastiques, ou entre le corps et les moyens élastiques.This residual clearance can be decreased by appropriate sizing of the gap between the stops of the second member. The precise dimensioning of this gap, however, increases the price of the parts used. In addition, a single winding does not make it possible to obtain a simultaneous reliable contact of the elastic means with the four stops of the two pairs of stops respectively belonging to the two members. FIGS. 1 and 2 schematically illustrate the relative positioning, in equilibrium position, of the body C with two blocking stops B1 and B2, of the actuating part A with two drive stops B3 and B4, and elastic means E having a single winding and two movable legs. A residual clearance J1 or J2 respectively appears, according to the configurations, between the actuating part and the elastic means, or between the body and the elastic means.
Pour résoudre ce problème, if a été proposé d'utiliser un second type de dispositif comprenant un ressort à double enroulement avec une branche médiane reliant les deux enroulements. En position d'équilibre chacun des deux enroulements est contraint entre une butée du corps et une butée de la partie d'actionnement, ce qui permet d'éliminer complètement le jeu résiduel.To solve this problem, it has been proposed to use a second type of device comprising a double-winding spring with a median branch connecting the two windings. In equilibrium position each of the two windings is constrained between a stop of the body and a stop of the actuating part, which makes it possible to completely eliminate the residual clearance.
En particulier, le document FR2823368 décrit un tel type de ressort à double enroulement. Ce type de dispositif donne donc satisfaction en ce qui concerne la suppression du jeu résiduel. La structure du ressort, ainsi que celles du corps et de la partie d'actionnement sont toutefois plus complexes que celles exposées pour le premier type de ressort.In particular, document FR2823368 describes such a type of double-winding spring. This type of device thus gives satisfaction with regard to the removal of the residual clearance. The structure of the spring, as well as those of the body and the actuating portion are however more complex than those exposed for the first type of spring.
Il est donc souhaitable de fournir un dispositif permettant à la fois de supprimer le jeu résiduel et également de permettre d'utiliser une structure simplifiée du dispositif de contrôle. A cet effet, la présente invention concerne un dispositif du premier type décrit ci-dessus, comprenant des premiers moyens élastiques correspondant aux moyens élastiques d'un dispositif de ce premier type, et caractérisé en ce que le dispositif comporte également des seconds moyens élastiques prenant appui, en position d'équilibre, d'une part sur une branche mobile des premiers moyens élastiques, et d'autre part contre une portion d'appui du second organe.It is therefore desirable to provide a device for both removing the residual clearance and also allowing to use a simplified structure of the control device. For this purpose, the present invention relates to a device of the first type described above, comprising first elastic means corresponding to the elastic means of a device of this first type, and characterized in that the device also comprises second resilient means taking support, in equilibrium position, on the one hand on a movable branch of the first elastic means, and on the other hand against a bearing portion of the second member.
Grâce à ces dispositions, en position d'équilibre, les branches mobiles des premiers moyens élastiques sont toutes deux en contact contre les deux butées d'un premier organe, et donc immobilisées. Les seconds moyens élastiques, qui prennent appui sur les premiers moyens élastiques, permettent, en position d'équilibre, d'exercer une force élastique sur le second organe, exercée entre une butée de ce second organe, et une portion d'appui de ce second organe. Le premier organe et les premiers moyens élastiques sont donc immobilisés l'un par rapport à l'autre, le second organe est immobilisé par les seconds moyens élastiques, en appui sur les premiers moyens élastiques.Thanks to these provisions, in equilibrium position, the movable branches of the first elastic means are both in contact against the two stops of a first member, and thus immobilized. The second elastic means, which are supported on the first elastic means, allow, in equilibrium position, to exert an elastic force on the second member, exerted between a stop of this second member, and a bearing portion of this second organ. The first member and the first elastic means are thus immobilized relative to each other, the second member is immobilized by the second elastic means, bearing on the first elastic means.
Le dispositif utilise des moyens élastiques avec un simple enroulement comme dans le premier type de ressort décrit, permettant de conserver une structure simple de ressort.The device uses elastic means with a simple winding as in the first type of spring described, to maintain a simple spring structure.
Avantageusement, les seconds moyens élastiques présentent une raideur inférieure à la raideur des premiers moyens élastiques.Advantageously, the second elastic means have a stiffness lower than the stiffness of the first elastic means.
La différence de raideur entre les premiers et les seconds moyens élastiques permet d'éviter que les contraintes exercées par les seconds moyens élastiques ne perturbent le maintien en position des premiers moyens élastiques par les deux butées du premier organe.The difference in stiffness between the first and the second elastic means makes it possible to prevent the stresses exerted by the second elastic means from disturbing the holding in position of the first elastic means by the two stops of the first member.
Selon un mode de réalisation, les seconds moyens élastiques comportent une patte élastique reliée à une branche mobile des premiers moyens élastiques. Avantageusement, la patte élastique est reliée par un coude à l'extrémité d'une branche mobile des premiers moyens élastiques.According to one embodiment, the second elastic means comprise an elastic tab connected to a movable branch of the first elastic means. Advantageously, the elastic tab is connected by a bend to the end of a movable branch of the first elastic means.
Ces dispositions permettent de réaliser un ressort en une seule pièce, et de structure simple.These arrangements make it possible to make a spring in one piece, and of simple structure.
Selon une première possibilité, la portion d'appui est constituée par une butée supplémentaire située sur le second organe. Selon une autre possibilité, la portion d'appui est constituée par une butée d'entraînement ou de blocage, les seconds moyens élastiques s'étendant de façon oblique par rapport à un plan contenant l'axe de rotation.According to a first possibility, the bearing portion is constituted by an additional stop located on the second member. According to another possibility, the bearing portion is constituted by a drive or locking stop, the second elastic means extending obliquely with respect to a plane containing the axis of rotation.
Avantageusement, le dispositif comporte une butée axiale limitant le mouvement de translation de l'enroulement dans la direction de l'axe de rotation.Advantageously, the device comprises an axial abutment limiting the translational movement of the winding in the direction of the axis of rotation.
Selon un mode de réalisation, les seconds moyens élastiques sont fixés sur le second organe.According to one embodiment, the second elastic means are fixed on the second member.
Avantageusement, les seconds moyens élastiques comporte un élément en élastomère.Advantageously, the second elastic means comprises an elastomer element.
De toute façon, l'invention sera bien comprise à l'aide de la description qui suit, en référence au dessin schématique annexé, représentant à titre d'exemple non limitatif, un mode de réalisation d'un dispositif selon l'invention. La figure 1 est une vue schématique d'un premier dispositif selon l'état de la technique.In any case, the invention will be better understood with the aid of the description which follows, with reference to the appended schematic drawing, representing by way of nonlimiting example, an embodiment of a device according to the invention. Figure 1 is a schematic view of a first device according to the state of the art.
La figure 2 est une vue schématique d'un second dispositif selon l'état de la technique.Figure 2 is a schematic view of a second device according to the state of the art.
La figure 3 est une vue en perspective d'un premier dispositif selon l'invention, une partie de ce dispositif ayant été coupée.Figure 3 is a perspective view of a first device according to the invention, a part of this device having been cut.
La figure 4 est une vue en coupe, par-dessus, du dispositif de figure 1.FIG. 4 is a sectional view, on top, of the device of FIG.
La figure 5 est une vue de face des moyens élastiques du dispositif de figure 1. La figure 6 est une vue en perspective des moyens élastiques de figure 3.FIG. 5 is a front view of the elastic means of the device of FIG. 1. FIG. 6 is a perspective view of the elastic means of FIG.
La figure 7 est une vue d'un second dispositif selon l'invention.Figure 7 is a view of a second device according to the invention.
Ainsi que représenté sur les figures 1 à 4, un dispositif de contrôle rotatif pour une télécommande d'engin mobile selon l'invention comporte, de façon connue, un corps 2 destiné à être fixé sur une poignée de la télécommande, non représentée, le corps 2 comprenant une première partie ou socle 3 destinée à être fixée sur la poignée par sa base, qui comporte des moyens de fixation 4, en particulier des lumières permettant le passage de vis de fixation, et une seconde partie ou capot 5, destinée à être fixée solidairement sur le socle 3. Le dispositif comprend une partie d'actionnement 6 mobile en rotation autour d'un axe A par rapport au corps 2, comportant dans ce mode de réalisation : un cabochon 7 extérieur au corps 2, destiné en particulier à être actionné au contact d'un doigt d'un utilisateur, un pivot 8, solidaire en mouvement par ses extrémités du cabochon 7, mobile en rotation dans un logement traversant ménagé entre le socle 3 et le capot 4 du corps 2, un aimant permanent 9, solidaire en mouvement du pivot 8, et contenu dans le logement entre le socle 3 et le capot 4.As shown in FIGS. 1 to 4, a rotary control device for a mobile equipment remote control according to the invention comprises, in known manner, a body 2 intended to be fixed on a handle of the remote control, not shown, the body 2 comprising a first part or base 3 intended to be fixed on the handle by its base, which comprises fixing means 4, in particular slots allowing the passage of fixing screws, and a second part or cover 5, intended for be firmly attached to the base 3. The device comprises an actuating part 6 movable in rotation about an axis A with respect to the body 2, comprising in this embodiment: a cap 7 outside the body 2, intended in particular to be actuated in contact with a a user's finger, a pivot 8, secured in movement by its ends of the cabochon 7, rotatable in a through-housing formed between the base 3 and the cover 4 of the body 2, a permanent magnet 9, integral in movement of the pivot 8, and contained in the housing between the base 3 and the cover 4.
Des moyens de détection, constitués par un capteur à effet Hall 10, sont fixés sur le socle 4, et détectent le mouvement de l'aimant 9 en regard, afin de générer un signal électrique de commande dérivé du mouvement de la partie d'actionnement 6. Le dispositif comporte un ressort 12 qui comprend des premiers moyens de rappel élastiques 13 permettant de ramener la partie d'actionnement 6 à une position d'équilibre E à partir de laquelle un utilisateur peut entraîner la partie d'actionnement dans deux directions opposées D1 , D2 par rapport à la position d'équilibre E, par contact avec le cabochon 7. Les premiers moyens élastiques 13, d'une première raideur k1 , comportent un enroulement unique 14, dont les boucles entoure l'axe de rotation A, et deux branches mobiles 15, 16 dans le prolongement des deux extrémités de l'enroulement 14.Detection means, constituted by a Hall effect sensor 10, are fixed on the base 4, and detect the movement of the magnet 9 facing each other, in order to generate an electrical control signal derived from the movement of the actuating part 6. The device comprises a spring 12 which comprises first elastic return means 13 for returning the actuating portion 6 to an equilibrium position E from which a user can drive the actuating part in two opposite directions D1, D2 with respect to the equilibrium position E, by contact with the cap 7. The first elastic means 13, of a first stiffness k1, comprise a single winding 14, whose loops surround the axis of rotation A, and two movable branches 15, 16 in the extension of the two ends of the winding 14.
La première branche mobile 15 est destinée à coopérer avec : - une première butée 17 d'entraînement ménagée sur le cabochon 7 de la partie d'entraînement 6 permettant l'entraînement de la première branche mobile 15 dans une première direction D1. une première butée 19 de blocage ménagée sur le corps 2 destinée à limiter sa course et à servir d'appui sur le corps lorsque la partie d'actionnement est entraînée dans une seconde direction D2.The first movable branch 15 is intended to cooperate with: a first abutment 17 provided on the driving cap 7 of the driving portion 6 for driving the first movable branch 15 in a first direction D1. a first locking stop 19 provided on the body 2 intended to limit its stroke and serve as a support on the body when the actuating portion is driven in a second direction D2.
Respectivement, la seconde branche mobile 16 est destinée à coopérer avec : - une seconde butée 18 d'entraînement ménagée sur le cabochon 7 de la partie d'entraînement 6 permettant l'entraînement de la seconde branche mobile 16 dans la seconde direction D2. une seconde butée 20 de blocage ménagée sur le corps 2 destinée à limiter sa course et à servir d'appui sur le corps lorsque la partie d'actionnement est entraînée dans une la première direction D1.Respectively, the second movable branch 16 is intended to cooperate with: a second stop 18 for driving formed on the cap 7 of the driving part 6 allowing driving the second movable branch 16 in the second direction D2. a second stop 20 formed on the body 2 to limit its stroke and serve as a support on the body when the actuating portion is driven in a first direction D1.
Le ressort 12 comporte également des seconds moyens élastiques d'une seconde raideur k2, inférieure à la première raideur, constitués par une patte élastique 22 reliée par un coude 23 à l'extrémité de la seconde branche mobile 16 des premiers moyens élastiques 13. Cette patte 22 est contenue dans un plan passant par l'axe de rotation A de la partie d'actionnement 6.The spring 12 also comprises second elastic means of a second stiffness k2, lower than the first stiffness, constituted by an elastic tab 22 connected by a bend 23 at the end of the second movable arm 16 of the first elastic means 13. tab 22 is contained in a plane passing through the axis of rotation A of the actuating part 6.
Les seconds moyens élastiques prennent appui d'une part sur la seconde branche mobile 16 des premiers moyens élastiques, et d'autre part sont destinés à venir en appui contre une portion d'appui de Ia partie d'actionnement 6, constituée par une butée supplémentaire 24 située sur la partie d'actionnement.The second elastic means are supported on the one hand on the second movable branch 16 of the first elastic means, and on the other hand are intended to bear against a bearing portion of the actuating portion 6, constituted by a stop additional 24 located on the actuating part.
Le positionnement de la butée supplémentaire 24 par rapport à les seconds moyens élastiques 22 est tel que lors d'une rotation dans le sens D1, la butée supplémentaire 24 est au contact des seconds moyens élastiques 22 avant que la seconde butée d'entraînement 18 soit au contact de la seconde branche mobile 16.The positioning of the additional stop 24 relative to the second elastic means 22 is such that during a rotation in the direction D1, the additional stop 24 is in contact with the second elastic means 22 before the second drive stop 18 is in contact with the second movable branch 16.
Dans le mode de réalisation représenté, en position d'équilibre, les branches mobiles 15, 16 des premiers moyens élastiques 13 sont toutes deux en contact contre les deux butées de blocage 19, 20 du corps 2, et donc immobilisées. Les seconds moyens élastiques 22, qui prennent appui sur les premiers moyens élastiques 13, exerce une force élastique sur la partie d'actionnement 6, exercée entre : la première butée d'entraînement 17 sur laquelle prend appui la première branche mobile 15 faisant partie des premiers moyens élastiques 13 immobilisée, et la butée supplémentaire 24, sur laquelle prend appui la patte élastique 22.In the embodiment shown, in the equilibrium position, the movable branches 15, 16 of the first elastic means 13 are both in contact against the two locking stops 19, 20 of the body 2, and thus immobilized. The second elastic means 22, which bear on the first elastic means 13, exerts an elastic force on the actuating part 6, exerted between: the first driving abutment 17 on which bears the first movable branch 15 forming part of first resilient means 13 immobilized, and the additional stop 24, on which bears the elastic tab 22.
La présence des seconds moyens élastiques, sous forme d'une patte élastique, permet donc de supprimer le jeu résiduel. Lors d'une rotation dans la première direction D1 , le fonctionnement est similaire à celui d'un dispositif selon le premier type connu décrit ci-dessus.The presence of the second elastic means, in the form of an elastic tab, thus makes it possible to eliminate the residual clearance. When rotating in the first direction D1, the operation is similar to that of a device according to the first known type described above.
Lors d'une rotation dans la seconde direction D2, la butée supplémentaire 24 est en contact avec l'extrémité de la patte élastique 22, qui se plie, notamment grâce à son élasticité k2 inférieure à celle des premiers moyens élastiques 13, puis une fois que la patte élastique 22 est pliée, la seconde butée d'entraînement 18 entre en contact avec la seconde branche mobile 16, sensiblement au niveau du coude 23, et entraîne cette seconde branche mobile 16.During a rotation in the second direction D2, the additional stop 24 is in contact with the end of the elastic tab 22, which bends, in particular thanks to its elasticity k2 less than that of the first elastic means 13, and then once that the elastic tab 22 is folded, the second driving abutment 18 comes into contact with the second movable arm 16, substantially at the level of the bend 23, and drives this second movable arm 16.
Comme cela est visible sur les figures, les deux branches mobiles 15, 16 ainsi que les butées sont disposées de façon asymétrique par rapport à un plan de symétrie de la partie d'actionnement en position d'équilibre. Cette disposition permet d'utiliser un corps de forme connue, qui ne présente une forme cylindrique que sur une partie limitée de sa surface supérieure, autour de laquelle la patte élastique 22 peut se déplacer en rotation.As can be seen in the figures, the two movable arms 15, 16 as well as the stops are arranged asymmetrically with respect to a plane of symmetry of the actuating part in equilibrium position. This arrangement makes it possible to use a body of known shape, which has a cylindrical shape only on a limited part of its upper surface, around which the elastic tab 22 can move in rotation.
Le dispositif comporte une butée axiale non représentée, limitant le mouvement de translation de l'enroulement 14 et de l'ensemble du ressort dans la direction de l'axe de rotation A de la partie d'actionnement 6.The device comprises an axial stop not shown, limiting the translational movement of the winding 14 and the entire spring in the direction of the axis of rotation A of the actuating portion 6.
Selon une variante non représentée, la portion d'appui est constituée par le prolongement de la seconde butée d'entraînement, la branche d'appui présentant un profil oblique, par rapport à un plan passant par l'axe de rotation A de la partie d'actionnement 6.According to a variant not shown, the bearing portion is constituted by the extension of the second drive abutment, the support branch having an oblique profile, with respect to a plane passing through the axis of rotation A of the part actuator 6.
Selon un second mode de réalisation représenté de façon schématique sur la figure 7, il est possible de constituer les seconds moyens élastiques de façon non solidaire des premiers moyens élastiques.According to a second embodiment shown diagrammatically in FIG. 7, it is possible to form the second elastic means in a non-integral manner with the first elastic means.
Les mêmes éléments portent les mêmes références que dans le premier mode de réalisation sur la figure 7.The same elements bear the same references as in the first embodiment in FIG. 7.
Dans ce second mode de réalisation, les seconds moyens élastiques peuvent être constitués par un élément en élastomère 25, fixé sur la partie d'actionnement 6, et destiné à être, en position d'équilibre, positionné en compression entre une portion d'appui de la partie d'actionnement 6 et une branche mobile des premiers moyens élastiques. Selon des variantes du premier et du second mode de réalisation, il est possible de ménager un écart entre les butées d'entraînement tel que les premiers moyens élastiques soient bloqués en position d'équilibre entre les deux butées d'entraînement, laissant alors un jeu entre les branches mobiles et les butées de blocage. Dans ce cas, les seconds moyens élastiques doivent prendre appui sur une portion d'appui du corps pour permettre de contraindre le dispositif en position d'équilibre.In this second embodiment, the second elastic means may be constituted by an elastomer element 25, fixed on the actuating portion 6, and intended to be, in equilibrium position, positioned in compression between a bearing portion of the actuating part 6 and a movable branch of the first elastic means. According to variants of the first and second embodiments, it is possible to provide a gap between the driving abutments such that the first elastic means are locked in equilibrium position between the two drive stops, leaving a gap between the movable branches and the blocking stops. In this case, the second elastic means must be supported on a support portion of the body to allow to constrain the device in equilibrium position.
Comme il va de soi, l'invention ne se limite pas à la forme de réalisation préférentielle décrite ci-dessus, à titre d'exemple non limitatif ; elle en embrasse au contraire toutes les variantes. It goes without saying that the invention is not limited to the preferred embodiment described above, by way of non-limiting example; on the contrary, it embraces all variants.

Claims

REVENDICATIONS
1. Dispositif de contrôle rotatif pour une télécommande d'engin mobile, en particulier engin de travaux publics, engin agricole ou de manutention, comportant deux organes, mobiles en rotation l'un par rapport à l'autre autour d'un axe (A), formés par un corps (2) destiné à être fixée sur une poignée de la télécommande d'une part, et une partie d'actionnement (6) d'autre part, le dispositif comportant également des premiers moyens de rappel (13) élastiques permettant de ramener la partie d'actionnement (6) au voisinage d'une position d'équilibre (P) par rapport au corps (2), à partir de laquelle un utilisateur peut entraîner la partie d'actionnement dans deux directions opposées par rapport à la position d'équilibre, ces premiers moyens élastiques (13) comprenant un enroulement (14) et deux branches mobiles (15, 16), chaque branche mobile (15, 16) étant destinée à coopérer avec :1. Rotary control device for a remote control of mobile machinery, in particular public works machinery, agricultural or handling machinery, comprising two members movable in rotation relative to each other about an axis (A ), formed by a body (2) intended to be fixed on a handle of the remote control on the one hand, and an actuating part (6) on the other hand, the device also comprising first return means (13) resilient means for returning the actuating portion (6) in the vicinity of an equilibrium position (P) relative to the body (2), from which a user can drive the actuating portion in two opposite directions by relative to the equilibrium position, these first elastic means (13) comprising a winding (14) and two movable arms (15, 16), each movable arm (15, 16) being intended to cooperate with:
- une butée d'entraînement (17,18) ménagée sur la partie d'actionnement (6) permettant l'entraînement de la branche mobile (15, 16) dans une direction (D1 , D2), et- a drive stop (17, 18) provided on the actuating part (6) for driving the movable arm (15, 16) in a direction (D1, D2), and
- une butée de blocage (19, 20) ménagée sur le corps (2) destinée à servir d'appui sur le corps (2) lorsque la partie d'actionnement (6) est entraînée dans la direction opposée (D1 , D2), les deux butées d'entraînement (17,18) et les deux butées de blocage (19, 20) formant deux couples de butées appartenant aux deux organes (2, 6) mobiles en rotation l'un par rapport à l'autre, les deux branches mobiles (15, 16) étant, en position d'équilibre (P), au contact de deux butées d'un premier des deux couples, les premiers moyens élastiques (13) étant immobilisés par rapport à un premier organe (2), caractérisé en ce que le dispositif comporte également des seconds moyens élastiques (22) prenant appui, en position d'équilibre, d'une part sur une branche mobile (15, 16) des premiers moyens élastiques (13), et d'autre part contre un portion d'appui (24) du second organe (6).- a locking stop (19, 20) provided on the body (2) intended to bear on the body (2) when the actuating part (6) is driven in the opposite direction (D1, D2), the two driving abutments (17, 18) and the two locking abutments (19, 20) forming two pairs of abutments belonging to the two members (2, 6) rotatable relative to one another, the two movable arms (15, 16) being, in the equilibrium position (P), in contact with two stops of a first of the two pairs, the first elastic means (13) being immobilized with respect to a first member (2) , characterized in that the device also comprises second elastic means (22) bearing, in equilibrium position, on the one hand on a movable arm (15, 16) of the first elastic means (13), and on the other against a bearing portion (24) of the second member (6).
2. Dispositif selon la revendication 1 , caractérisé en ce que les seconds moyens élastiques (22) présentent une raideur (k2) inférieure à la raideur (k1 ) des premiers moyens élastiques (13). 2. Device according to claim 1, characterized in that the second elastic means (22) have a stiffness (k2) less than the stiffness (k1) of the first elastic means (13).
3. Dispositif selon l'une des revendications 1 et 2, caractérisé en ce que les seconds moyens élastiques comportent une patte élastique (22) reliée à une branche mobile (16) des premiers moyens élastiques (13).3. Device according to one of claims 1 and 2, characterized in that the second elastic means comprise an elastic lug (22) connected to a movable arm (16) of the first elastic means (13).
4. Dispositif selon la revendication 3, caractérisé en ce que la patte élastique (22) est reliée par un coude (23) à l'extrémité d'une branche mobile (16) des premiers moyens élastiques (13).4. Device according to claim 3, characterized in that the elastic tab (22) is connected by a bend (23) to the end of a movable arm (16) of the first resilient means (13).
5. Dispositif selon l'une des revendications 1 à 4, caractérisé en ce que la portion d'appui (24) est constituée par une butée supplémentaire située sur le second organe (6). 5. Device according to one of claims 1 to 4, characterized in that the bearing portion (24) is constituted by an additional stop located on the second member (6).
6. Dispositif selon l'une des revendications 1 à 4, caractérisé en ce que la portion d'appui (24) est constituée par une butée d'entraînement ou de blocage.6. Device according to one of claims 1 to 4, characterized in that the bearing portion (24) is constituted by a drive or blocking stop.
7. Dispositif selon la revendication 6 et selon la revendication 3, caractérisé en ce que les seconds moyens élastiques (22) s'étendent de façon oblique par rapport à un plan contenant l'axe de rotation (A).7. Device according to claim 6 and according to claim 3, characterized in that the second elastic means (22) extend obliquely with respect to a plane containing the axis of rotation (A).
8. Dispositif selon l'une des revendications 1 ou 2, caractérisé en ce que les seconds moyens élastiques (25) sont fixés sur le second organe.8. Device according to one of claims 1 or 2, characterized in that the second elastic means (25) are fixed on the second member.
9. Dispositif selon la revendication 8, caractérisé en ce que les seconds moyens élastiques comporte un élément en élastomère (25). 9. Device according to claim 8, characterized in that the second elastic means comprises an elastomeric element (25).
10. Dispositif selon l'une des revendications 1 à 8, caractérisé en ce que le dispositif comporte une butée axiale limitant le mouvement de translation de l'enroulement dans la direction de l'axe de rotation. 10. Device according to one of claims 1 to 8, characterized in that the device comprises an axial stop limiting the translational movement of the winding in the direction of the axis of rotation.
EP07731125.6A 2006-04-12 2007-03-12 Rotary control device for moving vehicle remote control Not-in-force EP2005455B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0603232A FR2899995B1 (en) 2006-04-12 2006-04-12 ROTARY CONTROL DEVICE FOR MOBILE DEVICE REMOTE CONTROL, ESPECIALLY PUBLIC WORKS EQUIPMENT, AGRICULTURAL OR HANDLING ENGINE
PCT/FR2007/000429 WO2007116132A1 (en) 2006-04-12 2007-03-12 Rotary control device for moving vehicle remote control

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EP2005455A1 true EP2005455A1 (en) 2008-12-24
EP2005455B1 EP2005455B1 (en) 2013-11-13

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EP (1) EP2005455B1 (en)
JP (1) JP5331677B2 (en)
CN (1) CN101421807B (en)
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WO (1) WO2007116132A1 (en)

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WO2007116132A1 (en) 2007-10-18
US20090301255A1 (en) 2009-12-10
JP5331677B2 (en) 2013-10-30
EP2005455B1 (en) 2013-11-13
FR2899995B1 (en) 2008-07-04
FR2899995A1 (en) 2007-10-19
US8030587B2 (en) 2011-10-04
JP2009533271A (en) 2009-09-17
CN101421807B (en) 2012-07-04
CN101421807A (en) 2009-04-29

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