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EP3029700A1 - Device for protecting an electric control system - Google Patents

Device for protecting an electric control system Download PDF

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Publication number
EP3029700A1
EP3029700A1 EP15196632.2A EP15196632A EP3029700A1 EP 3029700 A1 EP3029700 A1 EP 3029700A1 EP 15196632 A EP15196632 A EP 15196632A EP 3029700 A1 EP3029700 A1 EP 3029700A1
Authority
EP
European Patent Office
Prior art keywords
cam
rotation
cover
access
control system
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
EP15196632.2A
Other languages
German (de)
French (fr)
Other versions
EP3029700B1 (en
Inventor
Joël GAUZIN
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Apem
Original Assignee
Apem
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Filing date
Publication date
Application filed by Apem filed Critical Apem
Publication of EP3029700A1 publication Critical patent/EP3029700A1/en
Application granted granted Critical
Publication of EP3029700B1 publication Critical patent/EP3029700B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/20—Interlocking, locking, or latching mechanisms
    • H01H9/28—Interlocking, locking, or latching mechanisms for locking switch parts by a key or equivalent removable member
    • H01H9/287—Interlocking, locking, or latching mechanisms for locking switch parts by a key or equivalent removable member wherein the operating part is made inaccessible or more difficult to access by a lid, cover or guard, e.g. lockable covers
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H13/00—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H3/00—Mechanisms for operating contacts
    • H01H3/32—Driving mechanisms, i.e. for transmitting driving force to the contacts
    • H01H3/42—Driving mechanisms, i.e. for transmitting driving force to the contacts using cam or eccentric

Definitions

  • the present invention relates to a protection device of an electrical control system, and a control panel comprising at least one such electrical control system and said protection device.
  • Different vehicles or machines may have one or more electrical control systems, such as switches or switches for example, manually operable by an operator.
  • electrical control systems such as switches or switches for example, manually operable by an operator.
  • the electric control system is for example on the dashboard of a vehicle, within reach of the driver.
  • a protective device comprising a rotating cover movable between a rest position in which it prohibits access to the operating member and thus prevents actuation thereof, and an access position to said operating member, wherein it allows access to the member and thus allows its actuation.
  • the axis of rotation of the cover is parallel to the support on which is arranged the electrical control system (for example a dashboard) and perpendicular to the main direction of actuation of the operating member. .
  • the amplitude of rotation of the cover is approximately 90 °, the rest position (which corresponds to a low position) being substantially parallel to the support on which the electrical control system is arranged, and the access position (which corresponds to at a raised position) being substantially perpendicular to said support.
  • the mechanical structure arranged on the visible face of the support which has a certain size, is unattractive.
  • the rotation mode of the cover does not lend itself well to the detection of the passage from one position to another by means of a sensor in cases where it is desired to reinforce the security provided by the protection device by adding to the electric control system electrical safety according to the detected position of the hood.
  • An object of the invention is therefore to design a protection device for an electrical control system that is more ergonomic and more aesthetic than existing devices, while lending itself when desired to a reliable and robust detection of a position change by a sensor.
  • the handling of the cover is more ergonomic since it rotates about an axis perpendicular to the wall of the control panel in which the operating member of the electrical control system is arranged.
  • the invention also relates to a control panel comprising at least one electrical control system and a protection device as mentioned above.
  • a protection device 1 of an electric control system 2 can be seen arranged on a control panel 3 of which only a wall 30 is visible.
  • the electrical control system 2 is actuated by an operating member 20, such as a switch, for example.
  • the wall 30 is preferably substantially planar.
  • this operating member 20 is a push button, driven by depression along an axis X1-X'1, perpendicular to the wall 30.
  • other devices such as Toggle or lever could be used.
  • the protective device 1 comprises a rotatable cover 11, rotatable about an axis of rotation X2-X'2 perpendicular to the wall 30 on which this rotatable cover is arranged.
  • the axes X2-X'2 and X1-X'1 are parallel.
  • the rotatable cover 11 is movable between a so-called “rest” position, (represented on the Figure 1A ), in which it prevents access to the operating member 20, so as to prevent the actuation of the electrical control system 2, and a so-called “access” position, (shown in FIG. Figure 1 B) , in which it authorizes access to the actuator 20, for the purpose of manual actuation by a user.
  • the protective device 1 comprises a body 19 comprising a barrel 10 assembled with a tip 16, an axis 15, a first cam 14, a second cam 12, a resilient member 13 and a guide ring 17. These different elements are described in more detail below.
  • the tip 16 comprises a cylindrical side wall 160 whose inner face is threaded over at least a portion of its height, the thread being referenced 161.
  • the cylindrical wall 160 is closed at its lower end by a bottom 162 having in its central portion a cylindrical housing 163, sized to receive the cylindrical lower end of the shaft 15, and to guide the latter in rotation.
  • the barrel 10 is cylindrical, open at both ends. Near its upper end, the barrel 10 has two successive shoulders, referenced 101 and 102, which reduce its diameter gradually, relative to the diameter of its central portion.
  • the shoulder 102 is provided with an annular groove 103 for receiving a seal 104.
  • the upper end 105 of the barrel 10 has on its outer face a threading 106.
  • the threading 106 cooperates with a nut 18, this nut making it possible to press the wall 30 of the control panel 3 against the shoulder 102 and the seal 104 thus ensuring a tight fitting of the barrel 10 inside this control panel.
  • the lower end of the barrel 10 has on its outer face a thread 107, adapted to cooperate with the tapping 161 provided on the tip 16. It is thus possible to screw the lower end of the barrel 10 inside the endpiece 16 to form the body 19 and this after having housed the various components of the device.
  • the barrel 10 has at its lower end two longitudinal guide notches 108. These notches are parallel to the axis X2-X'2. They open at the base of the barrel 10. Preferably, these notches 108 are diametrically opposed.
  • the axis 15 has a cylindrical trunk 150 whose outer diameter substantially corresponds, with the clearance, to that of the circular housing 163 of the tip 16.
  • the trunk 150 has an annular shoulder 151, which is extended by an upper fixing end 152, of smaller diameter than the trunk 150.
  • the upper end 152 is pierced with a slot 153, perpendicular to the axis X2-X'2 and intended to receive a pin 154 for fixing the rotary cover 11 on this axis 15.
  • the Rotating hood 11 is thus integral in rotation with axis 15.
  • trunk 150 has a radial annular rib 155, provided with a fixing notch 156 (see FIG. figure 6 ).
  • the first cam 14 has the shape of a cylinder 140 partially closed at its upper end by a wall 141 which is pierced by a central bore 142.
  • a locking pin 143 projects from the wall 141, upwards.
  • the locking pin 143 is received in the notch 156 and the rib 155 is placed in contact with the wall 141, which serves as a bearing surface.
  • the axis 15 and the first cam 14 are thus integral in rotation.
  • the first cam 14 further has a cam profile (or cam path) P1, formed in the thickness of its side wall 140 and which has successively a small pointed notch 145 and a large pointed notch 146.
  • the small pointed notch 145 preferably has the shape of a triangle whose tip is oriented towards the top of the first cam 14 and whose flared portion opens at the rim of this cam.
  • the small notch 145 is less high, that is to say shallower than the large notch 146.
  • the small notch 145 has two inclined edges, namely 1451 and 1452 (see figure 4 ).
  • the large notch 146 has a generally triangular general shape, so that it has a first inclined edge 1461 and a second inclined edge 1462 extending downwards by an edge portion parallel to the axis X2-X'2 and referenced 1463, (see also figure 4 ).
  • the two songs 1462 and 1461 are contiguous, so that they define between them a point 147 pointing downwards.
  • the song 1463 serves as a stop, as will be explained later.
  • the second cam 12 comprises a cylindrical body 120, partially closed at its upper part by an annular wall 121, perpendicular to the axis X2-X'2, and pierced with a central bore 122.
  • the outer diameter of the body 120 corresponds substantially, with the clearance, to the inner diameter of the cylinder 140 of the first cam 14, so that the body 120 can slide axially inside the first cam 14.
  • the diameter of the bore 122 corresponds substantially, with the game, the diameter of the cylindrical trunk 150 of the axis 15, so that the latter can slide axially there, as it appears better on the figure 2 .
  • the body 120 is bordered at its lower end by a ring 123 of greater diameter.
  • This ring 123 has on its upper face a cam profile P2 in the form of pointed protuberance 124 whose shape is complementary to that of the large notch 146, so that it has a first inclined edge 1241, a second inclined edge 1242 which is extended by a portion parallel to the axis X2-X'2 (vertical on the figures 4 and 6 ), referenced 1243, and a point 1244 at the junction between the two songs 1241 and 1242.
  • the second cam 12 comprises two lugs 125 protruding radially from the ring 123.
  • the two lugs 125 are diametrically opposed.
  • the two lugs 125 are intended to be received in the guide notches 108 of the barrel 10, within which they can slide axially along the axis X2-X'2. The second cam 12 is thus prevented from moving in rotation and can only move axially relative to the barrel 10.
  • the elastic member 13 is preferably constituted by a compression spring, arranged, as can be seen on the figure 2 around the cylindrical trunk 150 of the axis 15 and inside the cylindrical body 120 of the second cam 12.
  • the compression spring 13 is prestressed when the end piece 16 is screwed onto the barrel 10.
  • the elastic member 13 tends permanently to axially move the second cam 12 towards the first cam 14, while the lugs 125 are guided by the guide notches 108.
  • the second cam 12 can be moved axially downwards to the first cam 14. against the thrust force of the spring 13.
  • the guide ring 17 is a cylinder 171, bordered at its lower end by a radial flange 172. It is arranged around the body 150 of the axis 15, above the radial rib 155 and inside the barrel 10, in its smaller diameter portion (see figure 2 ). The guide ring 17 guides the axis 15 inside the barrel 10.
  • a seal 173 is advantageously disposed between the upper edge of this guide ring 17 and the barrel 10. It seals the rotary shaft 15 relative to the barrel 10.
  • the rotatable hood 11 preferably has a pivot zone 111 and a gripping zone 112.
  • the pivot zone 111 preferably comprises a cylindrical portion 1110, which extends at its lower part by an annular base 1111 of larger diameter.
  • a cylindrical blind hole 1112 of axis X2-X'2 is formed inside the body 1110, this blind hole being extended by a cavity 1113 of larger diameter formed in the base 1111 and opening at the bottom of the 11.
  • the blind hole 1112 can receive the end 152 of the axis 15 and the cavity 1113, the nut 18 and the upper end of the barrel 10.
  • the cylindrical portion 1110 is pierced with a light allowing the passage pin 154.
  • the gripping zone 112 extends radially from the body 1110 in a plane perpendicular or substantially perpendicular to that of the wall 30 of the control panel 3 and including the axis X2-X'2.
  • the gripping zone 112 has two opposed support faces 1120 allowing the handling of the cover 11 by the fingers of the user.
  • This gripping zone 112 also comprises a cover 1121 which extends in a plane substantially parallel to that of the wall 30 above and away from the member 20, so as to hide the latter when the cover 11 is located in the rest position shown on the Figure 1A .
  • a recess 1122 may also be provided between the cover 1121 and the body 1110 to house the thumb of the user.
  • the gripping zone 112 also has, near its outer end and its lower face, a recess 1123 (see figure 3 ) receiving a pin 31 (see Figure 1A ) which is disposed on the wall 30 perpendicularly thereto. Finally, as we can see on the figure 3 , the gripping zone 112 also has a recess 1124, inside which can be housed the member 20, when the cover 11 is in the rest position.
  • the gripping zone 112 could have another shape since it comprises a cover 1121 and a location for the fingers of the user.
  • the rotatable cover 11 is positioned so that its cover portion 1121 is disposed above the actuator 20 of the electrical control system 2, preventing access thereto.
  • the edge 1243 cooperates with the edge 1463 of the first cam 14, thus limiting the rotational movement that can not continue further in the direction of F1.
  • first cam 14 with a profile with two notches which cooperate with a pointed protuberance of the profile of the second cam 12 allows to have two indexed positions, that is to say stable, or "rest” , or "access”.
  • cam profiles are also conceivable since they make it possible to have a rest position, an access position and an unstable equilibrium position.
  • the indexing angles can be varied.
  • the protection device 1 comprises a position detector 4, which makes it possible to detect in which position the rotary mask 11 is located.
  • the first cam 14 comprises a cavity 148, visible on the figures 2 and 5 .
  • This cavity 148 opens on the surface of the outer wall of the first cam 14. It is preferably disposed above and close to the tip of the large notch 146, above the edge 1462.
  • the position detector 4 comprises a support (plate) 40 inside which a movable control member 41 can slide axially along an axis Y1-Y'1 perpendicular to the axis X2-X'2 and which extends radially relative to the axis 15.
  • This movable member 41 is actuated by a compression spring (not shown in the figures), which constantly tends to press against the outer wall of the first cam 14.
  • the support 40 is fixed on the barrel 10.
  • the mobile member 41 When the device 1 is in the rest position, the mobile member 41 rests against the outer face of the first cam 14. During the rotation of this cam, the control member 41 reaches the cavity 148 and enters (position represented on the figure 2 ). The displacement of this control member 41 has the effect of acting on the detector (for example on an electrical contact of the latter) and to indicate the passage of the rotary cover from the rest position to the access position. The reverse rotation of the cover 11 has the effect of pushing the movable member 41 outward (return to the original position).
  • a second detector diametrically opposed to the first one is used and on the cam 14 is formed a cavity similar to and diametrically opposed to the cavity 148 (FIG. not illustrated).
  • the protection device 1 has many advantages.

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  • Rotary Switch, Piano Key Switch, And Lever Switch (AREA)
  • Casings For Electric Apparatus (AREA)

Abstract

L'invention concerne un dispositif (1) de protection d'un système (2) de commande électrique actionnable par un organe (20) de manoeuvre et agencé dans un panneau de commande (3), comprenant : - un corps (19) présentant un axe longitudinal destiné à s'étendre perpendiculairement à une paroi dudit panneau de commande (3), - un capot rotatif (11) mobile par rapport au canon (10) entre une position de repos dans laquelle il interdit l'accès audit organe (20) de manoeuvre, et une position d'accès dans laquelle il autorise l'accès à cet organe (20), - une première came (14) solidaire en rotation du capot (11), - une seconde came (12) mobile en translation par rapport au corps (19) dans une direction axiale parallèle à l'axe de rotation du capot (11) et sollicitée vers la première came (14) par un organe élastique (13), - la première et la seconde came présentant des profils complémentaires (P1, P2) adaptés pour procurer successivement : (i) un premier emboîtement stable des deux cames en position de repos, (ii) une translation de la seconde came (12) à l'encontre de la sollicitation de l'organe élastique (13) sous l'effet de la rotation de la première came (14), (iii) un second emboîtement stable des deux cames dans la position d'accès. The invention relates to a device (1) for protecting an electrical control system (2) operable by an actuating member (20) and arranged in a control panel (3), comprising: a body (19) having a longitudinal axis intended to extend perpendicular to a wall of said control panel (3), - A rotatable cover (11) movable relative to the barrel (10) between a rest position in which it prevents access to said actuating member (20), and an access position in which it allows access to this organ (20), a first cam (14) integral in rotation with the cover (11), - a second cam (12) movable in translation relative to the body (19) in an axial direction parallel to the axis of rotation of the cover (11) and biased towards the first cam (14) by an elastic member (13), the first and second cam having complementary profiles (P1, P2) adapted to successively provide: (i) a first stable engagement of the two cams in the rest position, (ii) a translation of the second cam (12) against the biasing of the elastic member (13) under the effect of the rotation of the first cam (14), (iii) a second stable interlocking of the two cams in the access position.   

Description

DOMAINE DE L'INVENTIONFIELD OF THE INVENTION

La présente invention concerne un dispositif de protection d'un système de commande électrique, ainsi qu'un panneau de commande comprenant au moins un tel système de commande électrique et ledit dispositif de protection.The present invention relates to a protection device of an electrical control system, and a control panel comprising at least one such electrical control system and said protection device.

ARRIERE PLAN DE L'INVENTIONBACKGROUND OF THE INVENTION

Différents véhicules ou engins sont susceptibles de comporter un ou plusieurs systèmes de commande électrique, tels que des interrupteurs ou des commutateurs par exemple, actionnables manuellement par un opérateur.Different vehicles or machines may have one or more electrical control systems, such as switches or switches for example, manually operable by an operator.

Le système de commande électrique se trouve par exemple sur la planche de bord d'un véhicule, à portée de main du conducteur.The electric control system is for example on the dashboard of a vehicle, within reach of the driver.

Pour éviter un actionnement intempestif de l'organe de manoeuvre du système de commande, il est connu d'agencer au voisinage de celui-ci un dispositif de protection comprenant un capot rotatif mobile entre une position de repos dans laquelle il interdit l'accès à l'organe de manoeuvre et empêche ainsi un actionnement de celui-ci, et une position d'accès audit organe de manoeuvre, dans laquelle il autorise l'accès à l'organe et permet ainsi son actionnement.To avoid inadvertent actuation of the operating member of the control system, it is known to arrange in the vicinity of the latter a protective device comprising a rotating cover movable between a rest position in which it prohibits access to the operating member and thus prevents actuation thereof, and an access position to said operating member, wherein it allows access to the member and thus allows its actuation.

Dans les dispositifs de protection connus, l'axe de rotation du capot est parallèle au support sur lequel est agencé le système de commande électrique (par exemple une planche de bord) et perpendiculaire à la direction principale d'actionnement de l'organe de manoeuvre.In the known protection devices, the axis of rotation of the cover is parallel to the support on which is arranged the electrical control system (for example a dashboard) and perpendicular to the main direction of actuation of the operating member. .

L'amplitude de rotation du capot est d'environ 90°, la position de repos (qui correspond à une position basse) étant sensiblement parallèle au support sur lequel est agencé le système de commande électrique, et la position d'accès (qui correspond à une position relevée) étant sensiblement perpendiculaire audit support.The amplitude of rotation of the cover is approximately 90 °, the rest position (which corresponds to a low position) being substantially parallel to the support on which the electrical control system is arranged, and the access position (which corresponds to at a raised position) being substantially perpendicular to said support.

Cependant, ces dispositifs de protection présentent une ergonomie peu satisfaisante, dans la mesure où la zone de préhension du capot est peu étendue et où le mouvement à appliquer au capot pour le relever est peu intuitif.However, these protective devices have unsatisfactory ergonomics, insofar as the gripping area of the hood is small and where the movement to be applied to the hood to raise it is not very intuitive.

Un autre inconvénient de ces dispositifs de protection est que la structure mécanique qui permet la rotation du capot et le maintien de celui-ci en position de repos ou d'accès stable est agencée au-dessus - c'est-à-dire sur la face visible - du support du système de commande électrique.Another disadvantage of these protective devices is that the mechanical structure that allows rotation of the cover and the maintenance thereof in the rest position or stable access is arranged above - that is to say on the visible side - of the electrical control system support.

Cet agencement pose un problème de protection des composants : en effet, ceux-ci étant exposés à l'environnement ambiant et à d'éventuelles projections de fluides, il est nécessaire de prévoir un traitement anticorrosion des composants sensibles.This arrangement poses a problem of protection of the components: indeed, these being exposed to the ambient environment and to possible projections of fluids, it is necessary to provide anti-corrosion treatment of sensitive components.

D'autre part, la structure mécanique agencée sur la face visible du support, qui présente un certain encombrement, se montre peu esthétique.On the other hand, the mechanical structure arranged on the visible face of the support, which has a certain size, is unattractive.

Enfin, le mode de rotation du capot se prête mal à la détection du passage d'une position à l'autre au moyen d'un capteur dans les cas où l'on souhaite renforcer la sécurité procurée par le dispositif de protection en ajoutant au système de commande électrique une sécurité électrique en fonction de la position détectée du capot.Finally, the rotation mode of the cover does not lend itself well to the detection of the passage from one position to another by means of a sensor in cases where it is desired to reinforce the security provided by the protection device by adding to the electric control system electrical safety according to the detected position of the hood.

En effet, la détection du passage d'une position à l'autre est peu fiable et peu robuste dans cette configuration du capot rotatif.Indeed, the detection of the passage from one position to another is unreliable and not robust in this configuration of the rotary cover.

BREVE DESCRIPTION DE L'INVENTIONBRIEF DESCRIPTION OF THE INVENTION

Un but de l'invention est donc de concevoir un dispositif de protection d'un système de commande électrique qui soit plus ergonomique et plus esthétique que les dispositifs existants, tout en se prêtant lorsque cela est souhaité à une détection fiable et robuste d'un changement de position par un capteur.An object of the invention is therefore to design a protection device for an electrical control system that is more ergonomic and more aesthetic than existing devices, while lending itself when desired to a reliable and robust detection of a position change by a sensor.

A cet effet, l'invention concerne un dispositif de protection d'un système de commande électrique actionnable par un organe de manoeuvre et agencé dans un panneau de commande, comprenant :

  • un corps présentant un axe longitudinal destiné à s'étendre perpendiculairement à une paroi dudit panneau de commande,
  • un capot rotatif, mobile autour d'un axe de rotation coaxial à l'axe longitudinal dudit corps, entre une position de repos dans laquelle il interdit l'accès audit organe de manoeuvre de sorte à empêcher un actionnement du système de commande électrique, et une position d'accès dans laquelle il autorise l'accès à l'organe de manoeuvre en vue d'un actionnement manuel par un utilisateur,
  • une première came et une seconde came logées dans ledit corps,
  • la première came étant solidaire en rotation dudit capot, et la seconde came étant mobile uniquement en translation par rapport au corps dans une direction axiale parallèle à l'axe de rotation du capot et sollicitée vers la première came par un organe élastique,
  • la première et la seconde came présentant des profils de came adaptés l'un à l'autre pour procurer successivement, de la position de repos vers la position d'accès :
    1. (i) un premier emboîtement stable selon ladite direction axiale de la première et de la seconde came dans la position de repos,
    2. (ii) une translation de la seconde came selon ladite direction axiale à l'encontre de la sollicitation de l'organe élastique sous l'effet de la rotation de la première came, jusqu'à une position d'équilibre instable au-delà de laquelle l'organe élastique entraîne la seconde came en translation en rapprochement de la première came,
    3. (iii) un second emboîtement stable selon ladite direction axiale de la première et de la seconde came dans la position d'accès.
To this end, the invention relates to a device for protecting an electric control system operable by an operating member and arranged in a control panel, comprising:
  • a body having a longitudinal axis for extending perpendicular to a wall of said control panel,
  • a rotating cover, movable about an axis of rotation coaxial with the longitudinal axis of said body, between a rest position in which it prevents access to said operating member so as to prevent actuation of the electrical control system, and an access position in which it authorizes access to the actuator for manual actuation by a user,
  • a first cam and a second cam housed in said body,
  • the first cam being integral in rotation with said cover, and the second cam being movable only in translation relative to the body in an axial direction parallel to the axis of rotation of the cover and biased towards the first cam by an elastic member,
  • the first and second cam having cam profiles adapted to each other to successively provide from the rest position to the access position:
    1. (i) a first stable interlock in said axial direction of the first and second cam in the rest position,
    2. (ii) a translation of the second cam in said axial direction against the biasing of the elastic member under the effect of the rotation of the first cam, to an unstable equilibrium position beyond which the elastic member drives the second cam in translation towards the first cam,
    3. (iii) a second stable interlock in said axial direction of the first and second cam in the access position.

Grâce à ces caractéristiques de l'invention, la manipulation du capot est plus ergonomique puisque celui-ci pivote autour d'un axe perpendiculaire à la paroi du panneau de commande dans lequel l'organe de manoeuvre du système de commande électrique est agencé.Thanks to these features of the invention, the handling of the cover is more ergonomic since it rotates about an axis perpendicular to the wall of the control panel in which the operating member of the electrical control system is arranged.

Selon d'autres caractéristiques avantageuses et non limitatives de l'invention, prises seules ou en combinaison :

  • le capot rotatif et le corps sont destinés à être agencés de part et d'autre de la paroi d'un panneau de commande équipé dudit dispositif de commande électrique,
  • le profil de la seconde came comprend une protubérance pointue s'étendant dans la direction axiale vers la première came,
  • le profil de la première came comprend deux encoches pointues s'étendant dans la direction axiale,
  • la première came comprend une butée adaptée pour limiter la rotation relative de la première came vis-à-vis de la seconde came,
  • le dispositif comprend un capteur de position agencé à proximité du corps et coopérant avec la première came de sorte à détecter un déplacement de ladite première came entre la position de repos et la position d'accès,
  • le capot rotatif comprend une zone de préhension adaptée à un doigt d'un utilisateur.
According to other advantageous and nonlimiting features of the invention, taken alone or in combination:
  • the rotary cover and the body are intended to be arranged on either side of the wall of a control panel equipped with said electrical control device,
  • the profile of the second cam comprises a pointed protrusion extending in the axial direction towards the first cam,
  • the profile of the first cam comprises two pointed notches extending in the axial direction,
  • the first cam comprises a stop adapted to limit the relative rotation of the first cam vis-à-vis the second cam,
  • the device comprises a position sensor arranged close to the body and cooperating with the first cam so as to detect a displacement of said first cam between the rest position and the access position,
  • the rotatable hood includes a gripping area adapted to a finger of a user.

L'invention concerne également un panneau de commande comprenant au moins un système de commande électrique et un dispositif de protection tel que précité.The invention also relates to a control panel comprising at least one electrical control system and a protection device as mentioned above.

BREVE DESCRIPTION DES DESSINSBRIEF DESCRIPTION OF THE DRAWINGS

D'autres caractéristiques et avantages de l'invention ressortiront de la description détaillée qui va suivre, en référence aux dessins annexés sur lesquels :

  • les figures 1A et 1B sont des vues en perspective d'un dispositif de protection conforme à l'invention, respectivement en position de repos et en position d'accès à l'organe de manoeuvre d'un interrupteur,
  • la figure 2 est une vue en coupe partielle d'un dispositif de protection selon l'invention,
  • la figure 3 est une vue en perspective d'un tel dispositif dans la position de repos du capot,
  • la figure 4 est une vue en perspective dudit dispositif pendant son passage de la position de repos à la position d'accès à l'organe de manoeuvre (position instable),
  • la figure 5 est une vue en perspective dudit dispositif dans sa position d'accès à l'organe de manoeuvre,
  • la figure 6 est une vue en perspective éclatée du dispositif conforme à l'invention.
Other characteristics and advantages of the invention will emerge from the detailed description which follows, with reference to the appended drawings in which:
  • the Figures 1A and 1B are perspective views of a protection device according to the invention, respectively in the rest position and in the access position to the operating member of a switch,
  • the figure 2 is a partial sectional view of a protective device according to the invention,
  • the figure 3 is a perspective view of such a device in the rest position of the hood,
  • the figure 4 is a perspective view of said device during its passage from the rest position to the position of access to the operating member (unstable position),
  • the figure 5 is a perspective view of said device in its position of access to the actuator,
  • the figure 6 is an exploded perspective view of the device according to the invention.

DESCRIPTION DETAILLEE DE L'INVENTIONDETAILED DESCRIPTION OF THE INVENTION

Dans la suite de la description, les références aux termes "bas", "haut", "supérieur" et "inférieur" sont à prendre en considération par rapport à la position du dispositif représentée sur les figures 2 et 6.In the remainder of the description, the references to the terms "low", "high", "upper" and "lower" are to be taken into consideration with respect to the position of the device represented on the figures 2 and 6 .

Sur les figures 1A et 1B, on peut voir un dispositif de protection 1 d'un système de commande électrique 2 agencé sur un panneau de commande 3 dont seule une paroi 30 est visible.On the Figures 1A and 1B , a protection device 1 of an electric control system 2 can be seen arranged on a control panel 3 of which only a wall 30 is visible.

Le système de commande électrique 2 est actionné par un organe de manoeuvre 20, tel qu'un interrupteur, par exemple.The electrical control system 2 is actuated by an operating member 20, such as a switch, for example.

Dans la région du dispositif de protection 1 et de l'organe de manoeuvre 20 la paroi 30 est de préférence sensiblement plane.In the region of the protective device 1 and the actuator 20 the wall 30 is preferably substantially planar.

Dans le mode de réalisation représenté sur les figures, cet organe de manoeuvre 20 est un bouton-poussoir, actionné par enfoncement selon un axe X1-X'1, perpendiculaire à la paroi 30. Toutefois, d'autres dispositifs tels que des interrupteurs à bascule ou à levier pourraient être utilisés.In the embodiment shown in the figures, this operating member 20 is a push button, driven by depression along an axis X1-X'1, perpendicular to the wall 30. However, other devices such as Toggle or lever could be used.

Sur les figures 1A et 1B, on peut voir que le dispositif de protection 1 comprend un capot rotatif 11, mobile en rotation autour d'un axe de rotation X2-X'2 perpendiculaire à la paroi 30 sur laquelle ce capot rotatif est agencé.On the Figures 1A and 1B , it can be seen that the protective device 1 comprises a rotatable cover 11, rotatable about an axis of rotation X2-X'2 perpendicular to the wall 30 on which this rotatable cover is arranged.

Dans le mode de réalisation particulier représenté sur les figures, dans lequel l'organe de manoeuvre 20 est un bouton-poussoir, les axes X2-X'2 et X1-X'1 sont parallèles.In the particular embodiment shown in the figures, in which the operating member 20 is a push button, the axes X2-X'2 and X1-X'1 are parallel.

Le capot rotatif 11 est mobile entre une position dite "de repos", (représentée sur la figure 1A), dans laquelle il interdit l'accès à l'organe de manoeuvre 20, de façon à empêcher l'actionnement du système de commande électrique 2, et une position dite "d'accès", (représentée sur la figure 1 B), dans laquelle il autorise l'accès à l'organe 20 de manoeuvre, en vue de l'actionnement manuel par un utilisateur.The rotatable cover 11 is movable between a so-called "rest" position, (represented on the Figure 1A ), in which it prevents access to the operating member 20, so as to prevent the actuation of the electrical control system 2, and a so-called "access" position, (shown in FIG. Figure 1 B) , in which it authorizes access to the actuator 20, for the purpose of manual actuation by a user.

Un exemple de réalisation du dispositif de protection 1 va maintenant être décrit plus en détail en faisant référence aux figures 2 et 6.An exemplary embodiment of the protection device 1 will now be described in more detail with reference to the figures 2 and 6 .

Outre le capot rotatif 11, le dispositif de protection 1 comprend un corps 19 comprenant un canon 10 assemblé avec un embout 16, un axe 15, une première came 14, une deuxième came 12, un organe élastique 13 et une bague de guidage 17. Ces différents éléments sont décrits plus en détail ci-après.In addition to the rotary cover 11, the protective device 1 comprises a body 19 comprising a barrel 10 assembled with a tip 16, an axis 15, a first cam 14, a second cam 12, a resilient member 13 and a guide ring 17. These different elements are described in more detail below.

L'embout 16 comprend une paroi latérale cylindrique 160 dont la face intérieure est taraudée sur au moins une partie de sa hauteur, le taraudage étant référencé 161.The tip 16 comprises a cylindrical side wall 160 whose inner face is threaded over at least a portion of its height, the thread being referenced 161.

La paroi cylindrique 160 est obturée à son extrémité inférieure, par un fond 162 présentant dans sa partie centrale un logement cylindrique 163, dimensionné de façon à recevoir l'extrémité inférieure cylindrique de l'axe 15, et à guider celle-ci en rotation.The cylindrical wall 160 is closed at its lower end by a bottom 162 having in its central portion a cylindrical housing 163, sized to receive the cylindrical lower end of the shaft 15, and to guide the latter in rotation.

Le canon 10 est cylindrique, ouvert à ses deux extrémités. A proximité de son extrémité supérieure, le canon 10 présente deux épaulements successifs, référencés 101 et 102, qui réduisent son diamètre progressivement, par rapport au diamètre de sa partie centrale. L'épaulement 102 est pourvu d'une gorge annulaire 103 de réception d'un joint d'étanchéité 104.The barrel 10 is cylindrical, open at both ends. Near its upper end, the barrel 10 has two successive shoulders, referenced 101 and 102, which reduce its diameter gradually, relative to the diameter of its central portion. The shoulder 102 is provided with an annular groove 103 for receiving a seal 104.

L'extrémité supérieure 105 du canon 10 présente sur sa face extérieure un filetage 106.The upper end 105 of the barrel 10 has on its outer face a threading 106.

Le filetage 106 coopère avec un écrou 18, cet écrou permettant de venir plaquer la paroi 30 du panneau de commande 3 contre l'épaulement 102 et le joint d'étanchéité 104 en assurant ainsi un montage étanche du canon 10 à l'intérieur de ce panneau de commande.The threading 106 cooperates with a nut 18, this nut making it possible to press the wall 30 of the control panel 3 against the shoulder 102 and the seal 104 thus ensuring a tight fitting of the barrel 10 inside this control panel.

L'extrémité inférieure du canon 10 présente sur sa face extérieure un filetage 107, apte à coopérer avec le taraudage 161 prévu sur l'embout 16. Il est ainsi possible de visser l'extrémité inférieure du canon 10 à l'intérieur de l'embout 16 pour former le corps 19 et ce, après y avoir logé les différents composants du dispositif.The lower end of the barrel 10 has on its outer face a thread 107, adapted to cooperate with the tapping 161 provided on the tip 16. It is thus possible to screw the lower end of the barrel 10 inside the endpiece 16 to form the body 19 and this after having housed the various components of the device.

Enfin, le canon 10 présente à son extrémité inférieure deux échancrures longitudinales de guidage 108. Ces échancrures sont parallèles à l'axe X2-X'2. Elles débouchent à la base du canon 10. De préférence, ces échancrures 108 sont diamétralement opposées.Finally, the barrel 10 has at its lower end two longitudinal guide notches 108. These notches are parallel to the axis X2-X'2. They open at the base of the barrel 10. Preferably, these notches 108 are diametrically opposed.

L'axe 15 présente un tronc cylindrique 150 dont le diamètre extérieur correspond sensiblement, au jeu près, à celui du logement circulaire 163 de l'embout 16. Le tronc 150 présente un épaulement annulaire 151, qui se prolonge par une extrémité supérieure de fixation 152, de diamètre inférieur à celui du tronc 150. L'extrémité supérieure 152 est percée d'une lumière 153, perpendiculaire à l'axe X2-X'2 et destinée à recevoir une goupille 154 de fixation du capot rotatif 11 sur cet axe 15. Le capot rotatif 11 est donc solidaire en rotation de l'axe 15. Enfin, dans sa partie sensiblement médiane, le tronc 150 présente une nervure annulaire radiale 155, pourvue d'une encoche de fixation 156 (voir figure 6).The axis 15 has a cylindrical trunk 150 whose outer diameter substantially corresponds, with the clearance, to that of the circular housing 163 of the tip 16. The trunk 150 has an annular shoulder 151, which is extended by an upper fixing end 152, of smaller diameter than the trunk 150. The upper end 152 is pierced with a slot 153, perpendicular to the axis X2-X'2 and intended to receive a pin 154 for fixing the rotary cover 11 on this axis 15. The Rotating hood 11 is thus integral in rotation with axis 15. Finally, in its substantially median portion, trunk 150 has a radial annular rib 155, provided with a fixing notch 156 (see FIG. figure 6 ).

La première came 14 présente la forme d'un cylindre 140 partiellement obturé à son extrémité supérieure par une paroi 141 qui est percée d'un alésage central 142.The first cam 14 has the shape of a cylinder 140 partially closed at its upper end by a wall 141 which is pierced by a central bore 142.

Un ergot de blocage 143 fait saillie depuis la paroi 141, vers le haut. Lorsque l'axe 15 et la première came 14 sont assemblés, l'ergot de blocage 143 est reçu dans l'encoche 156 et la nervure 155 est placée au contact de la paroi 141, qui lui sert de surface d'appui. L'axe 15 et la première came 14 sont ainsi solidaires en rotation.A locking pin 143 projects from the wall 141, upwards. When the shaft 15 and the first cam 14 are assembled, the locking pin 143 is received in the notch 156 and the rib 155 is placed in contact with the wall 141, which serves as a bearing surface. The axis 15 and the first cam 14 are thus integral in rotation.

La première came 14 présente en outre un profil de came (ou chemin de came) P1, ménagé dans l'épaisseur de sa paroi latérale 140 et qui présente successivement une petite encoche pointue 145 et une grande encoche pointue 146.The first cam 14 further has a cam profile (or cam path) P1, formed in the thickness of its side wall 140 and which has successively a small pointed notch 145 and a large pointed notch 146.

La petite encoche pointue 145 présente de préférence la forme d'un triangle dont la pointe est orientée vers le haut de la première came 14 et dont la partie évasée débouche au niveau du rebord de cette came.The small pointed notch 145 preferably has the shape of a triangle whose tip is oriented towards the top of the first cam 14 and whose flared portion opens at the rim of this cam.

La petite encoche 145 est moins haute, c'est-à-dire moins profonde que la grande encoche 146. La petite encoche 145 présente deux chants inclinés, à savoir 1451 et 1452 (voir figure 4).The small notch 145 is less high, that is to say shallower than the large notch 146. The small notch 145 has two inclined edges, namely 1451 and 1452 (see figure 4 ).

La grande encoche 146 présente une forme générale sensiblement triangulaire, de sorte qu'elle présente un premier chant 1461 incliné et un deuxième chant 1462 incliné se prolongeant vers le bas par une portion de chant parallèle à l'axe X2-X'2 et référencée 1463, (voir également la figure 4). Les deux chants 1462 et 1461 sont contigus, de sorte qu'ils définissent entre eux une pointe 147 orientée vers le bas.The large notch 146 has a generally triangular general shape, so that it has a first inclined edge 1461 and a second inclined edge 1462 extending downwards by an edge portion parallel to the axis X2-X'2 and referenced 1463, (see also figure 4 ). The two songs 1462 and 1461 are contiguous, so that they define between them a point 147 pointing downwards.

Le chant 1463 sert de butée, comme cela sera expliqué ultérieurement.The song 1463 serves as a stop, as will be explained later.

En se reportant aux figures 2 et 6, on peut voir que la deuxième came 12 comprend un corps cylindrique 120, partiellement obturé à sa partie supérieure par une paroi annulaire 121, perpendiculaire à l'axe X2-X'2, et percée d'un alésage central 122. Le diamètre extérieur du corps 120 correspond sensiblement, au jeu près, au diamètre intérieur du cylindre 140 de la première came 14, de sorte que le corps 120 peut coulisser axialement à l'intérieur de la première came 14. De plus, le diamètre de l'alésage 122 correspond sensiblement, au jeu près, au diamètre du tronc cylindrique 150 de l'axe 15, de sorte que ce dernier peut y coulisser axialement, comme cela apparaît mieux sur la figure 2. Le corps 120 est bordé à son extrémité inférieure par un anneau 123 de diamètre supérieur.Referring to figures 2 and 6 it can be seen that the second cam 12 comprises a cylindrical body 120, partially closed at its upper part by an annular wall 121, perpendicular to the axis X2-X'2, and pierced with a central bore 122. The outer diameter of the body 120 corresponds substantially, with the clearance, to the inner diameter of the cylinder 140 of the first cam 14, so that the body 120 can slide axially inside the first cam 14. In addition, the diameter of the bore 122 corresponds substantially, with the game, the diameter of the cylindrical trunk 150 of the axis 15, so that the latter can slide axially there, as it appears better on the figure 2 . The body 120 is bordered at its lower end by a ring 123 of greater diameter.

Cet anneau 123 présente sur sa face supérieure un profil de came P2 en forme de protubérance pointue 124 dont la forme est complémentaire de celle de la grande encoche 146, de sorte qu'elle présente un premier chant incliné 1241, un deuxième chant incliné 1242 qui se prolonge par une portion parallèle à l'axe X2-X'2 (vertical sur les figures 4 et 6), référencée 1243, et une pointe 1244 au niveau de la jonction entre les deux chants 1241 et 1242.This ring 123 has on its upper face a cam profile P2 in the form of pointed protuberance 124 whose shape is complementary to that of the large notch 146, so that it has a first inclined edge 1241, a second inclined edge 1242 which is extended by a portion parallel to the axis X2-X'2 (vertical on the figures 4 and 6 ), referenced 1243, and a point 1244 at the junction between the two songs 1241 and 1242.

En outre, la deuxième came 12 comprend deux ergots 125 faisant saillie radialement depuis l'anneau 123. De préférence, les deux ergots 125 sont diamétralement opposés. Les deux ergots 125 sont destinés à être reçus dans les échancrures de guidage 108 du canon 10, à l'intérieur desquelles ils peuvent coulisser axialement selon l'axe X2-X'2. La seconde came 12 est ainsi empêchée de se déplacer en rotation et peut uniquement se déplacer axialement par rapport au canon 10.In addition, the second cam 12 comprises two lugs 125 protruding radially from the ring 123. Preferably, the two lugs 125 are diametrically opposed. The two lugs 125 are intended to be received in the guide notches 108 of the barrel 10, within which they can slide axially along the axis X2-X'2. The second cam 12 is thus prevented from moving in rotation and can only move axially relative to the barrel 10.

L'organe élastique 13 est de préférence constitué par un ressort de compression, disposé, comme on peut le voir sur la figure 2, autour du tronc cylindrique 150 de l'axe 15 et à l'intérieur du corps cylindrique 120 de la deuxième came 12.The elastic member 13 is preferably constituted by a compression spring, arranged, as can be seen on the figure 2 around the cylindrical trunk 150 of the axis 15 and inside the cylindrical body 120 of the second cam 12.

Son extrémité inférieure repose contre le fond 162 de l'embout 16, tandis que son extrémité supérieure repose contre la face intérieure et inférieure de la paroi 121.Its lower end rests against the bottom 162 of the tip 16, while its upper end rests against the inner and lower face of the wall 121.

Le ressort de compression 13 est précontraint lorsque l'embout 16 est vissé sur le canon 10.The compression spring 13 is prestressed when the end piece 16 is screwed onto the barrel 10.

L'organe élastique 13 tend en permanence à déplacer axialement la deuxième came 12 en direction de la première came 14, tandis que les ergots 125 sont guidés par les échancrures de guidage 108. La deuxième came 12 peut être déplacée axialement vers le bas à l'encontre de la force de poussée du ressort 13.The elastic member 13 tends permanently to axially move the second cam 12 towards the first cam 14, while the lugs 125 are guided by the guide notches 108. The second cam 12 can be moved axially downwards to the first cam 14. against the thrust force of the spring 13.

Comme on peut le voir sur la figure 6, la bague de guidage 17 est un cylindre 171, bordé à son extrémité inférieure par une collerette radiale 172. Elle est disposée autour du corps 150 de l'axe 15, au-dessus de la nervure radiale 155 et à l'intérieur du canon 10, dans sa portion de diamètre plus restreint (voir figure 2). La bague de guidage 17 assure le guidage de l'axe 15 à l'intérieur du canon 10.As can be seen on the figure 6 , the guide ring 17 is a cylinder 171, bordered at its lower end by a radial flange 172. It is arranged around the body 150 of the axis 15, above the radial rib 155 and inside the barrel 10, in its smaller diameter portion (see figure 2 ). The guide ring 17 guides the axis 15 inside the barrel 10.

Un joint d'étanchéité 173 est avantageusement disposé entre le bord supérieur de cette bague de guidage 17 et le canon 10. Il assure l'étanchéité de l'axe 15 rotatif par rapport au canon 10.A seal 173 is advantageously disposed between the upper edge of this guide ring 17 and the barrel 10. It seals the rotary shaft 15 relative to the barrel 10.

Comme on peut le voir, notamment sur les figures 1A et 3, le capot rotatif 11 présente de préférence une zone de pivotement 111 et une zone de préhension 112.As can be seen, especially on Figures 1A and 3 , the rotatable hood 11 preferably has a pivot zone 111 and a gripping zone 112.

La zone de pivotement 111 comprend de préférence une portion cylindrique 1110, qui se prolonge à sa partie inférieure par une embase annulaire 1111 de plus grand diamètre.The pivot zone 111 preferably comprises a cylindrical portion 1110, which extends at its lower part by an annular base 1111 of larger diameter.

Comme on peut le voir sur la figure 2, un trou borgne 1112 cylindrique d'axe X2-X'2 est ménagé à l'intérieur du corps 1110, ce trou borgne se prolongeant par une cavité 1113 de plus grand diamètre ménagée dans l'embase 1111 et débouchant à la partie inférieure du capot 11. Le trou borgne 1112 permet de recevoir l'extrémité 152 de l'axe 15 et la cavité 1113, l'écrou 18 et l'extrémité supérieure du canon 10. La portion cylindrique 1110 est percée d'une lumière permettant le passage de la goupille 154.As can be seen on the figure 2 , a cylindrical blind hole 1112 of axis X2-X'2 is formed inside the body 1110, this blind hole being extended by a cavity 1113 of larger diameter formed in the base 1111 and opening at the bottom of the 11. The blind hole 1112 can receive the end 152 of the axis 15 and the cavity 1113, the nut 18 and the upper end of the barrel 10. The cylindrical portion 1110 is pierced with a light allowing the passage pin 154.

Un mode de réalisation possible de la zone de préhension 112 est décrit ci-après.One possible embodiment of the gripping zone 112 is described below.

La zone de préhension 112 s'étend radialement depuis le corps 1110 dans un plan perpendiculaire ou sensiblement perpendiculaire à celui de la paroi 30 du panneau de commande 3 et incluant l'axe X2-X'2. La zone de préhension 112 présente deux faces d'appui 1120 opposées permettant la manipulation du capot 11 par les doigts de l'utilisateur.The gripping zone 112 extends radially from the body 1110 in a plane perpendicular or substantially perpendicular to that of the wall 30 of the control panel 3 and including the axis X2-X'2. The gripping zone 112 has two opposed support faces 1120 allowing the handling of the cover 11 by the fingers of the user.

Cette zone de préhension 112 comprend également un cache 1121 qui s'étend dans un plan sensiblement parallèle à celui de la paroi 30 au-dessus et à distance de l'organe 20, de façon à cacher celui-ci lorsque le capot 11 se trouve dans la position de repos représentée sur la figure 1A.This gripping zone 112 also comprises a cover 1121 which extends in a plane substantially parallel to that of the wall 30 above and away from the member 20, so as to hide the latter when the cover 11 is located in the rest position shown on the Figure 1A .

Un creux 1122 peut également être ménagé entre le cache 1121 et le corps 1110, afin de loger le pouce de l'utilisateur.A recess 1122 may also be provided between the cover 1121 and the body 1110 to house the thumb of the user.

La zone de préhension 112 présente également, à proximité de son extrémité extérieure et de sa face inférieure, un évidement 1123 (voir figure 3) de réception d'un pion 31 (voir figure 1A) qui est disposé sur la paroi 30 perpendiculairement à celle-ci. Enfin, comme on peut le voir sur la figure 3, la zone de préhension 112 présente également un évidement 1124, à l'intérieur duquel peut venir se loger l'organe 20, lorsque le capot 11 est en position de repos.The gripping zone 112 also has, near its outer end and its lower face, a recess 1123 (see figure 3 ) receiving a pin 31 (see Figure 1A ) which is disposed on the wall 30 perpendicularly thereto. Finally, as we can see on the figure 3 , the gripping zone 112 also has a recess 1124, inside which can be housed the member 20, when the cover 11 is in the rest position.

La zone de préhension 112 pourrait présenter une autre forme dès lors qu'elle comprend un cache 1121 et un emplacement pour les doigts de l'utilisateur.The gripping zone 112 could have another shape since it comprises a cover 1121 and a location for the fingers of the user.

On notera, comme on peut le voir sur la figure 2, que le capot rotatif 11 et le corps 19 sont agencés de part et d'autre de la paroi 30 du panneau de commande 3.We will note, as we can see on the figure 2 , that the rotary cover 11 and the body 19 are arranged on either side of the wall 30 of the control panel 3.

Le fonctionnement du dispositif de protection 1 va maintenant être décrit plus en détail en partant de la position de repos représentée sur la figure 1A.The operation of the protection device 1 will now be described in more detail starting from the rest position represented on the Figure 1A .

Dans cette position, le capot rotatif 11 est positionné de façon que sa portion de cache 1121 soit disposée au-dessus de l'organe 20 de manoeuvre du système 2 de commande électrique, en empêchant l'accès à celui-ci.In this position, the rotatable cover 11 is positioned so that its cover portion 1121 is disposed above the actuator 20 of the electrical control system 2, preventing access thereto.

Dans cette position de repos, seule la pointe de la protubérance pointue 124 de la seconde came pénètre dans la petite encoche 145 car celle-ci est peu profonde, de ce fait son flanc 1243 n'interagit pas avec cette encoche et la rotation de la première came 14 peut être poursuivie.In this rest position, only the point of the pointed protuberance 124 of the second cam enters the small notch 145 because it is shallow, so its flank 1243 does not interact with this notch and the rotation of the first cam 14 can be continued.

Lorsque l'utilisateur souhaite accéder à l'organe de manoeuvre 20, il fait pivoter le capot rotatif 11 autour de l'axe de rotation X2-X'2, dans le sens de la flèche F1 représentée sur la figure 1A, c'est-à-dire en écartant l'évidement 1123 du pion 31. Ce faisant, il provoque la rotation de l'axe 15 et de la première came 14 qui lui est associée, jusqu'à amener la pointe 147 de la première came 14 au contact de la pointe 1244 de la deuxième came 12. Le dispositif 1 est alors dans une position d'équilibre instable représentée sur la figure 4. Le mouvement de rotation de la première came 14 provoque également le déplacement axial vers le bas de la deuxième came 12, à l'encontre de la force exercée par le ressort 13.When the user wishes to access the operating member 20, he rotates the rotatable cover 11 about the axis of rotation X2-X'2, in the direction of the arrow F1 shown in FIG. Figure 1A , that is to say by removing the recess 1123 of the pin 31. In doing so, it causes the rotation of the axis 15 and the first cam 14 associated therewith, to bring the tip 147 of the first cam 14 in contact with the tip 1244 of the second cam 12. The device 1 is then in an unstable equilibrium position represented on the figure 4 . The rotational movement of the first cam 14 also causes the axial displacement downwards of the second cam 12, against the force exerted by the spring 13.

Lorsque l'utilisateur poursuit la rotation dans le sens de la flèche F1, il dépasse cette position d'équilibre instable et la détente du ressort de compression 13 provoque alors le déplacement axial de la deuxième came 12 à l'intérieur du canon 10. Ce déplacement est guidé par les ergots 125 qui coopèrent avec les encoches de guidage 108 du corps.When the user continues the rotation in the direction of the arrow F1, it exceeds this unstable equilibrium position and the expansion of the compression spring 13 then causes the axial displacement of the second cam 12 inside the barrel 10. displacement is guided by the lugs 125 which cooperate with the guide notches 108 of the body.

Ceci entraîne la poursuite de la rotation de la première came 14 qui vient se positionner sur la deuxième came 12, de façon que la grande encoche 146 vienne coiffer la protubérance pointue 124 de la deuxième came 12. Cette position est illustrée sur la figure 5. Cette rotation de la première came 14 provoque la rotation du capot rotatif 11 jusqu'à l'amener à sa position d'accès représentée sur la figure 1 B.This results in the further rotation of the first cam 14 which is positioned on the second cam 12, so that the large notch 146 comes to cap the pointed protuberance 124 of the second cam 12. This position is illustrated on the figure 5 . This rotation of the first cam 14 causes rotation of the rotatable cover 11 to bring it to its access position represented on the figure 1 B .

Dans cette position, le chant 1243 coopère avec le chant 1463 de la première came 14, en limitant ainsi le mouvement de rotation qui ne peut se poursuivre plus loin dans le sens de la F1.In this position, the edge 1243 cooperates with the edge 1463 of the first cam 14, thus limiting the rotational movement that can not continue further in the direction of F1.

Lorsque l'utilisateur souhaite réarmer le dispositif 1, il fait pivoter le capot rotatif 11 dans le sens de la flèche F2, représentée sur la figure1A, c'est-à-dire dans le sens contraire du mouvement précédemment effectué. Le mouvement de rotation du capot 11 et de la première came 14 provoque le déplacement axial vers le bas de la deuxième came 12 jusqu'à revenir à la position instable représentée sur la figure 4, puis en poursuivant la rotation du capot 11 ramène le dispositif dans la position de repos représentée sur la figure 3.When the user wishes to reset the device 1, he rotates the rotatable cover 11 in the direction of the arrow F2, shown in FIG. figure1A , that is to say in the opposite direction of the movement previously performed. The rotational movement of the cover 11 and the first cam 14 causes the axial displacement downwards of the second cam 12 until it returns to the unstable position shown in FIG. figure 4 , then continuing the rotation of the cover 11 brings the device back to the rest position shown in FIG. figure 3 .

Comme on peut le voir sur la figure 1A, le capot rotatif arrive alors en butée contre le pion 31 qui limite le mouvement de rotation dans le sens F2.As can be seen on the Figure 1A , the rotary cover then comes into abutment against the pin 31 which limits the rotational movement in the direction F2.

Le fait d'avoir une première came 14 avec un profil à deux encoches qui coopèrent avec une protubérance pointue du profil de la seconde came 12 permet d'avoir deux positions indexées, c'est-à-dire stables, soit « de repos », soit « d'accès ».The fact of having a first cam 14 with a profile with two notches which cooperate with a pointed protuberance of the profile of the second cam 12 allows to have two indexed positions, that is to say stable, or "rest" , or "access".

D'autres profils de came sont également envisageables dès lors qu'ils permettent d'avoir une position de repos, une position d'accès et une position d'équilibre instable.Other cam profiles are also conceivable since they make it possible to have a rest position, an access position and an unstable equilibrium position.

Par ailleurs, en ajustant la forme des cames on peut faire varier les angles d'indexation. Ainsi, dans l'exemple illustré sur les figures, il faut parcourir une course angulaire d'environ 15°pour passer le point dur (point d'équilibre instable) puis une course d'environ 45° pour réarmer le dispositif. On peut modifier ces courses en jouant sur les formes des cames.Moreover, by adjusting the shape of the cams, the indexing angles can be varied. Thus, in the example illustrated in the figures, it is necessary to traverse an angular stroke of about 15 ° to pass the hard point (unstable equilibrium point) then a stroke of about 45 ° to rearm the device. These races can be modified by playing on the shapes of the cams.

De façon avantageuse, le dispositif de protection 1 conforme à l'invention comprend un détecteur de position 4, qui permet de détecter dans quelle position se trouve le cache rotatif 11.Advantageously, the protection device 1 according to the invention comprises a position detector 4, which makes it possible to detect in which position the rotary mask 11 is located.

Il est notamment souhaitable de détecter la position de repos, pour rajouter une sécurité électrique.It is particularly desirable to detect the rest position, to add electrical safety.

Un exemple de réalisation d'un détecteur de position 4 va maintenant être décrit en faisant référence à la figure 2.An embodiment of a position detector 4 will now be described with reference to the figure 2 .

La première came 14 comprend une cavité 148, visible sur les figures 2 et 5. Cette cavité 148 débouche à la surface de la paroi extérieure de la première came 14. Elle est disposée, de préférence, au-dessus et à proximité de la pointe de la grande encoche 146, au-dessus du chant 1462.The first cam 14 comprises a cavity 148, visible on the figures 2 and 5 . This cavity 148 opens on the surface of the outer wall of the first cam 14. It is preferably disposed above and close to the tip of the large notch 146, above the edge 1462.

Par ailleurs, le détecteur de position 4 comprend un support (plaquette) 40, à l'intérieur duquel un organe de commande mobile 41 peut coulisser axialement, selon un axe Y1-Y'1 perpendiculaire à l'axe X2-X'2 et qui s'étend radialement par rapport à l'axe 15. Cet organe mobile 41 est actionné par un ressort de compression (non représenté sur les figures), qui tend en permanence à le plaquer contre la paroi extérieure de la première came 14.Furthermore, the position detector 4 comprises a support (plate) 40 inside which a movable control member 41 can slide axially along an axis Y1-Y'1 perpendicular to the axis X2-X'2 and which extends radially relative to the axis 15. This movable member 41 is actuated by a compression spring (not shown in the figures), which constantly tends to press against the outer wall of the first cam 14.

Le support 40 est fixé sur le canon 10.The support 40 is fixed on the barrel 10.

Lorsque le dispositif 1 est en position de repos, l'organe mobile 41 repose contre la face extérieure de la première came 14. Lors de la rotation de cette came, l'organe de commande 41 parvient devant la cavité 148 et y pénètre (position représentée sur la figure 2). Le déplacement de cet organe de commande 41 a pour effet d'agir sur le détecteur (par exemple sur un contact électrique de ce dernier) et d'indiquer le passage du capot rotatif de la position de repos à la position d'accès. Le mouvement de rotation inverse du capot 11 a pour effet de repousser l'organe mobile 41 vers l'extérieur (retour à la position d'origine).When the device 1 is in the rest position, the mobile member 41 rests against the outer face of the first cam 14. During the rotation of this cam, the control member 41 reaches the cavity 148 and enters (position represented on the figure 2 ). The displacement of this control member 41 has the effect of acting on the detector (for example on an electrical contact of the latter) and to indicate the passage of the rotary cover from the rest position to the access position. The reverse rotation of the cover 11 has the effect of pushing the movable member 41 outward (return to the original position).

Pour permettre la détection à la fois de la position fermée et de la position ouverte, on utilise un second détecteur diamétralement opposé au premier et on forme sur la came 14 une cavité similaire à la cavité 148 et diamétralement opposée à celle-ci (mode de réalisation non illustré).To enable the detection of both the closed position and the open position, a second detector diametrically opposed to the first one is used and on the cam 14 is formed a cavity similar to and diametrically opposed to the cavity 148 (FIG. not illustrated).

Le dispositif de protection 1 présente de nombreux avantages.The protection device 1 has many advantages.

Seul le capot rotatif 11 est visible hors du panneau de commande, les éléments mécaniques de guidage et d'indexation des positions (cames) sont logés sous ce panneau. On gagne ainsi en esthétique et en encombrement sur face avant de la paroi 30.Only the rotary cover 11 is visible outside the control panel, the mechanical elements for guiding and indexing the positions (cams) are housed under this panel. We thus gain aesthetics and space on the front face of the wall 30.

L'utilisation de cames complémentaires travaillant axialement par rapport à l'axe de rotation 15 permet de réduire l'encombrement global du dispositif 1.The use of complementary cams working axially with respect to the axis of rotation 15 makes it possible to reduce the overall size of the device 1.

Enfin, l'utilisation d'un détecteur de position 4 permet de renforcer la sécurité du dispositif et celle du système de commande électrique 2.Finally, the use of a position detector 4 makes it possible to reinforce the safety of the device and that of the electrical control system 2.

Claims (8)

Dispositif (1) de protection d'un système (2) de commande électrique actionnable par un organe (20) de manoeuvre et agencé dans un panneau de commande (3), comprenant : - un corps (19) présentant un axe longitudinal destiné à s'étendre perpendiculairement à une paroi dudit panneau de commande (3), - un capot rotatif (11), mobile autour d'un axe de rotation (X2-X'2) coaxial à l'axe longitudinal dudit corps (19), entre une position de repos dans laquelle il interdit l'accès audit organe (20) de manoeuvre de sorte à empêcher un actionnement du système de commande électrique, et une position d'accès dans laquelle il autorise l'accès à l'organe (20) de manoeuvre en vue d'un actionnement manuel par un utilisateur, - une première came (14) et une seconde came (12) logées dans ledit corps (19), - la première came (14) étant solidaire en rotation dudit capot (11), et la seconde came (12) étant mobile uniquement en translation par rapport au corps (19) dans une direction axiale parallèle à l'axe de rotation du capot (11) et sollicitée vers la première came (14) par un organe élastique (13), - la première et la seconde came présentant des profils de came (P1, P2) adaptés l'un à l'autre pour procurer successivement, de la position de repos vers la position d'accès : (i) un premier emboîtement stable selon ladite direction axiale de la première (14) et de la seconde came (12) dans la position de repos, (ii) une translation de la seconde came (12) selon ladite direction axiale à l'encontre de la sollicitation de l'organe élastique (13) sous l'effet de la rotation de la première came (14), jusqu'à une position d'équilibre instable au-delà de laquelle l'organe élastique (13) entraîne la seconde came (12) en translation en rapprochement de la première came (14), (iii) un second emboîtement stable selon ladite direction axiale de la première (14) et de la seconde came (12) dans la position d'accès. Device (1) for protecting an electrical control system (2) operable by an actuating member (20) and arranged in a control panel (3), comprising: a body (19) having a longitudinal axis intended to extend perpendicular to a wall of said control panel (3), - a rotatable cover (11), movable about an axis of rotation (X2-X'2) coaxial with the longitudinal axis of said body (19), between a rest position in which it prevents access to said body ( 20) to prevent actuation of the electrical control system, and an access position in which it allows access to the actuating member (20) for manual operation by a user, a first cam (14) and a second cam (12) housed in said body (19), the first cam (14) being integral in rotation with said cover (11), and the second cam (12) being movable only in translation relative to the body (19) in an axial direction parallel to the axis of rotation of the cover ( 11) and urged towards the first cam (14) by an elastic member (13), the first and second cam having cam profiles (P1, P2) adapted to each other to successively provide, from the rest position to the access position: (i) a first stable engagement in said axial direction of the first (14) and the second cam (12) in the rest position, (ii) a translation of the second cam (12) in said axial direction against the biasing of the elastic member (13) under the effect of the rotation of the first cam (14), to a unstable equilibrium position beyond which the elastic member (13) drives the second cam (12) in translation towards the first cam (14), (iii) a second stable interlock in said axial direction of the first (14) and the second cam (12) in the access position. Dispositif selon la revendication 1, caractérisé en ce que le capot rotatif (11) et le corps (10) sont destinés à être agencés de part et d'autre de la paroi (30) du panneau de commande (3) équipé dudit dispositif (2) de commande électrique.Device according to claim 1, characterized in that the rotary cover (11) and the body (10) are intended to be arranged on either side of the wall (30) of the control panel (3) equipped with said device ( 2) electrical control. Dispositif selon la revendication 1 ou 2, caractérisé en ce que le profil (P2) de la seconde came (12) comprend une protubérance pointue (124) s'étendant dans la direction axiale vers la première came (14).Device according to claim 1 or 2, characterized in that the profile (P2) of the second cam (12) comprises a pointed protuberance (124) extending in the axial direction towards the first cam (14). Dispositif selon l'une des revendications précédentes, caractérisé en ce que le profil (P1) de la première came (14) comprend deux encoches pointues (145, 146) s'étendant dans la direction axiale.Device according to one of the preceding claims, characterized in that the profile (P1) of the first cam (14) comprises two pointed notches (145, 146) extending in the axial direction. Dispositif selon l'une des revendications précédentes, caractérisé en ce que la première came (14) comprend une butée (1463) adaptée pour limiter la rotation relative de la première came (14) vis-à-vis de la seconde came (12).Device according to one of the preceding claims, characterized in that the first cam (14) comprises a stop (1463) adapted to limit the relative rotation of the first cam (14) vis-à-vis the second cam (12) . Dispositif selon l'une des revendications précédentes, caractérisé en ce qu'il comprend un capteur (4) de position agencé à proximité du corps (19) et coopérant avec la première came (14) de sorte à détecter un déplacement de ladite première came (14) entre la position de repos et la position d'accès.Device according to one of the preceding claims, characterized in that it comprises a position sensor (4) arranged close to the body (19) and cooperating with the first cam (14) so as to detect a displacement of said first cam (14) between the home position and the access position. Dispositif selon l'une des revendications précédentes, caractérisé en ce que le capot rotatif (11) comprend une zone de préhension (112, 1120, 1122) adaptée à un doigt d'un utilisateur.Device according to one of the preceding claims, characterized in that the rotary cover (11) comprises a gripping area (112, 1120, 1122) adapted to a finger of a user. Panneau de commande (3) comprenant au moins un système (2) de commande électrique et un dispositif (1) de protection dudit système de commande selon l'une des revendications 1 à 7.Control panel (3) comprising at least one electrical control system (2) and a device (1) for protecting said control system according to one of claims 1 to 7.
EP15196632.2A 2014-12-01 2015-11-27 Device for protecting an electric control system Active EP3029700B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1461712A FR3029348B1 (en) 2014-12-01 2014-12-01 DEVICE FOR PROTECTING AN ELECTRICAL CONTROL SYSTEM

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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1070741A (en) * 1952-02-12 1954-08-10 Bosch Gmbh Robert Closure with sliding shutter, in particular for the walls of motorcycle headlight housings
US20120047973A1 (en) * 2010-08-27 2012-03-01 Master Lock Company Llc Lockout device

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1070741A (en) * 1952-02-12 1954-08-10 Bosch Gmbh Robert Closure with sliding shutter, in particular for the walls of motorcycle headlight housings
US20120047973A1 (en) * 2010-08-27 2012-03-01 Master Lock Company Llc Lockout device

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EP3029700B1 (en) 2017-06-07
FR3029348B1 (en) 2017-01-06

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