EP3569552B1 - Device for controlling a member for locking/ unlocking a door leaf on a frame, such as a bolt, and lock comprising same - Google Patents

Device for controlling a member for locking/ unlocking a door leaf on a frame, such as a bolt, and lock comprising same Download PDF

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Publication number
EP3569552B1
EP3569552B1 EP19170908.8A EP19170908A EP3569552B1 EP 3569552 B1 EP3569552 B1 EP 3569552B1 EP 19170908 A EP19170908 A EP 19170908A EP 3569552 B1 EP3569552 B1 EP 3569552B1
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EP
European Patent Office
Prior art keywords
notched
bolt
sector
lock
operating arm
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EP19170908.8A
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German (de)
French (fr)
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EP3569552A1 (en
Inventor
Roland Tricot
Philippe Lassiaz
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Prudhomme SA
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Prudhomme SA
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Publication of EP3569552A1 publication Critical patent/EP3569552A1/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B13/00—Doors, gates, or other apparatus controlling access to, or exit from, cages or lift well landings
    • B66B13/02—Door or gate operation
    • B66B13/14—Control systems or devices
    • B66B13/16—Door or gate locking devices controlled or primarily controlled by condition of cage, e.g. movement or position

Definitions

  • One of these devices consists of having an electromagnet whose movable ferromagnetic core is coupled to the member to be controlled which may be a bolt according to the chosen application example.
  • the electromagnet can be controlled by an electrical signal depending on the position of a cabin or platform of the lifting device.
  • Another drawback of this electromagnet device lies in the fact that during the entire time the car is immobilized on a floor (for example at night), the coil is permanently powered in order to keep the bolt in the opening position of the landing door, which is likely to cause heating which can lead to rapid destruction of the coil.
  • An aim of the present invention is to propose a landing door lock for a lifting device which in particular overcomes the aforementioned drawbacks.
  • a lock according to claim 1 is provided.
  • the rotational force generated by the rotating actuator such as an electric motor, and transmitted by this gear train, is designed such that the actuating unit can be advantageously used in the lock housing both for a lock whose bolt extends from the left side of the housing and for a lock whose bolt extends from the right side of the housing, i.e. without requiring substantial modifications to the control device or additional components depending on the opening side of the door. This results in a saving of components for the lock, regardless of the locking/unlocking side of the door equipped with it.
  • said notched sector may have the shape of a circular half-crown comprising a central portion covered with radial notches and two terminal portions which are respectively fixed to two wings extending at right angles a vertex of said operating arm mounted on said fixed pivot axis, said operating arm may have a general T shape whose free end opposite said vertex is connected to said member, such that said terminal portions of said notched sector form a substantially isosceles triangle with said free end of said operating arm.
  • this semi-circle shape for the curved rack whose teeth forming these radial notches (i.e. teeth whose summits or summit edges extend along the direction of a radius of the semi-circle passing through the fixed pivot axis) are provided at the center of this rack thus allows, via its terminal portions, the assembly integral in rotation with the operating arm and this rack such that the curved rack and the arm with which it is provided admit as a common plane of symmetry the median longitudinal plane of the arm.
  • said notched sector is in one piece, said central portion covered with radial notches being formed in one piece with said terminal portions which are respectively fixed to said wings of said operating arm by two fixing elements with axes parallel to said fixed pivot axis.
  • These fixing elements are, for example, mounted in such a way as to connect the operating arm to the notched sector in a non-deformable manner (i.e. without any degree of freedom of the arm relative to the notched sector).
  • said terminal portions are provided with oblong holes in arcs of a circle, to allow movement of said fixing elements in said oblong holes when, without using said actuator or said at least one pinion, rotation is imparted to said fixed pivot axis by an external emergency key causing rotation of said operating arm and translation of said member, for reversibly obtaining said retracted unlocking position.
  • these oblong holes thus allow the unlocking of the organ by the operating arm using this key when the actuator, such as an electric motor, is blocked.
  • This sliding assembly of the notched covering in the central portion of the support can be obtained by an assembly of the arc-shaped rib type forming a slide on the lower face of the covering. (opposite its upper face showing the notches) / groove in an arc of a circle formed on the upper face opposite the central portion of the support, or vice versa.
  • this sliding assembly with lateral stop allows, in addition to the aforementioned unlocking by the emergency key, a rotation of the operating arm thanks to the rotation generated by the actuator and transmitted to and by the curved rack, then a return to the initial position by means of the thrust exerted by the return means applied against the locking/unlocking member.
  • the stop between the notched coating and the sector support is used for driving by the motor, while the distance from this stop is used during unlocking by the key.
  • said notched sector further comprises return means comprising two pre-stressed helical compression springs, which are respectively mounted on both sides and bearing against said notched covering, so as to allow an over-torque exerted on said notched covering causing, by relative sliding, a momentary displacement in an arc of a circle of said notched covering relative to said sector support then a return to the initial position when said over-torque is cancelled, one of said pre-stressed springs being compressed and the other relaxed when said unlocking position is obtained.
  • return means comprising two pre-stressed helical compression springs, which are respectively mounted on both sides and bearing against said notched covering, so as to allow an over-torque exerted on said notched covering causing, by relative sliding, a momentary displacement in an arc of a circle of said notched covering relative to said sector support then a return to the initial position when said over-torque is cancelled, one of said pre-stressed springs being compressed and the other relaxed when said unlocking position is
  • this variant thus makes it possible not only to obtain this over-torque with a reversible curvilinear movement of the notched coating on the sector support, but also a rotational drive of the operating arm even when the actuator, such as an electric motor, is blocked, it being specified that this curvilinear sliding compresses one of the two pre-stressed springs while relaxing the other.
  • said notched sector further comprises separable connecting means of the clip and drive pin type between said notched covering and said sector support, said connecting means being adapted to maintain said notched covering in movement according to an arc of a circle relative to said sector support by relative sliding and for obtaining a disengagement of said operating arm relative to said notched sector, in particular during an over-torque exerted on said notched coating, or for obtaining the rotation of said operating arm and the translation of said member in said unlocking position, by a rotation directly imparted to said fixed pivot axis by said emergency key.
  • these clip and stud connection means make it possible to use the emergency key to slide in a curvilinear manner with “unclipping” (i.e. separation of the clips) the notched covering on the sector support, when the actuator, such as an electric motor, is blocked.
  • said fixed pivot axis in said retracted unlocking position, can be located substantially at an equal distance from one end of said return means mounted against said first wall of said housing and from an axially external end opposite said member mounted flush with said second wall of said housing.
  • said fixed pivot axis is further perpendicular to a plane containing said translation axis and the longitudinal axis of symmetry of the operating arm.
  • said rotation actuator comprises a stepper electric motor coupled to control electronics and optionally also to a reduction group.
  • stepper electric motor specifically in combination with the notched sector according to the invention makes it possible to obtain a higher final torque on the operating arm for a lower electrical consumption than with a conventional electric motor.
  • the actuator such as an electric motor, preferably a stepper motor
  • the actuator can be activated from a signal acting positively or negatively on its power supply so as to modify the position of the locking/unlocking member, it being recalled that the aforementioned emergency key and the independent return force exerted by the return means applied against this member during a power cut to the actuator also make it possible to modify the position of this member.
  • the notched sector 16 is in one piece, having the shape of a circular half-crown comprising a central portion 17 covered with radial notches 17a and two terminal portions 18 which are respectively fixed, by two fixing elements 19 with axes parallel to the fixed axis P, to two wings 12a extending at right angles a vertex 12b of the arm 12 mounted on the fixed axis P.
  • the arm 12 has the shape of a symmetrical T whose free end 12c opposite the vertex 12b is coupled to the bolt 5, so that in this for example the terminal portions 18 form an isosceles triangle with the free end 12c of the arm 12.
  • the fixed axis P is materialized by a pivot P' of generally prismatic geometry of triangular section truncated at its corners by flats, in this exemplary embodiment.
  • the terminal portions 18 of the notched sector 16 they are raised relative to its central portion 17 in the direction of the fixed axis P via shoulders, and each wing 12a of the arm 12 comprises two legs 12aa superimposed and spaced from each other in this direction of the fixed axis P which are adapted to grip a terminal portion 18 for the through-mounting of a fixing element 19.
  • Each fixing element 19 thus passes through orifices opposite the two legs 12aa of each wing 12a and the terminal portion 18 which they grip.
  • a meshing via the electric motor 13 of the pinion 15 on the notched sector 16 causes a rotation of the latter around the fixed axis P and a pivoting of the arm 12 on this fixed axis P for the reversible translation control of the bolt 5 from its extended position of the figure 1 to its retracted position of the figure 2 (in which the axially external end 5b of the bolt 5 is substantially flush with the second wall 4 of the housing 2), and vice versa.
  • the 10' control device of the Figures 6-9 corresponds to a variant of the example of Figures 1-5 still according to the first embodiment of the invention, which differs from this example only in that the raised terminal portions 18' of the single-piece notched sector 16' respectively have two oblong holes 18a in arcs of a circle symmetrical to each other adapted to receive in curvilinear sliding the fixing elements 19 (visible in the figure) figure 9 and constituted as in Figures 1-6 of two tubular pins 19 provided in this example with collars 19a and locking rings 19b).
  • the fixed axis P can be operated directly in the direction of the arrow M by means of an emergency key 20 when the motor 13 is blocked, for example, in order to rotate the arm 12 in the direction allowing the bolt 5 to be moved from its extended position to its retracted position of the figure 8 .
  • the bolt 5 can be unlocked without rotating the motor 13 or the pinion 15.
  • the notched covering 118 is able to slide in a curvilinear manner in the central portion 116a of the support 117 via a rib 118b in an arc of a circle formed on a lower face of the covering 118 cooperating in sliding with a corresponding groove 117b of the upper face of the central portion 116a.
  • This mutual abutment on one side of the notched sector 116, of the covering 118 and of the support 117, allows rotation of the arm 12 by the motor 13 then a return to the initial position by means of the thrust F generated by the spring 11 of the bolt 5 and also, without rotation of the motor 13 or of the pinion 15 (i.e. in particular when the motor 13 is blocked), to directly maneuver the fixed axis P in the direction of the arrow M by means of an emergency key 20 to rotate the arm 12 in the direction allowing the bolt 5 to be brought from its extended position to its retracted position of the figure 12 .
  • the control device 110' according to the variant of the second mode of the invention visible in Figures 14-18 is essentially distinguished from the example of Figures 10-13a , in that (see Figures 16-17 ) the notched sector 116' in two parts 117 and 118 further comprises two pre-stressed helical compression springs 119 and 120 respectively mounted on both sides and bearing against the notched covering 118.
  • This assembly not only allows rotational drive of the arm 12 but also allows an over-torque on the notching 118a of the covering 118, with a momentary curvilinear sliding of the covering 118 on the support 117 secured to the arm 12, then a return to the initial position when the over-torque is cancelled.
  • FIG 16 illustrates the usefulness of the two parts 117 and 118 and of the springs 119 and 120 if the motor 13 is blocked. Indeed, when the bolt 5 is unlocked with the emergency key 20 rotating the fixed axis P in the required direction, the covering 118 slides on the support 117 by compressing one spring 119 and relaxing the other spring 120.
  • FIG 18 further illustrates the usefulness of the two parts 117 and 118 and of the springs 119 and 120 if the translation of the bolt 5 is temporarily or permanently blocked in the locked or semi-locked position by an external action (see force F1 exerted on the bolt 5), one of the springs 120 compressing while the other spring 119 relaxes proportionally.
  • the control device 110" according to the other variant of the second mode of the invention visible in Figures 19-22a is essentially distinguished from the variant of Figures 14-18 , in that (see Figures 22-22a ) the notched sector 116" in two parts 117 and 118 further comprises separable connecting means of the clip type 121 and drive pins 122 between the notched covering 118 and the sector support 117. As visible in the figure 22a , the clips 121 are arranged on either side of the rib 118b on the lower face of the notched covering 118.
  • FIG 21 illustrates the usefulness of the two parts 117 and 118 and the clips/nipples 121 if the motor 13 is blocked. Indeed, when the bolt 5 is unlocked with the emergency key 20, the covering 118 slides relative to the sector support 117 by unclipping (i.e. by separation of the clips 121 and nipples 122).
  • the notched covering 118 is held in curvilinear sliding on the sector support 117 secured to the arm 12 by means of the clips 121 and pins 122, then allowing the arm 12 to be disengaged relative to the notched covering 118, for example during an over-torque.

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  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Lock And Its Accessories (AREA)

Description

La présente invention concerne une serrure d'une porte palière d'un appareil élévateur avec pêne de verrouillage/ déverrouillage de cette porte, une telle serrure pouvant équiper un ascenseur ou tout autre appareil élévateur notamment pour des personnes à mobilité réduite.The present invention relates to a lock for a landing door of a lifting device with a bolt for locking/unlocking this door, such a lock being able to equip an elevator or any other lifting device in particular for people with reduced mobility.

Pour mémoire, il est rappelé que dans une installation d'appareil élévateur, telle qu'illustrée par le document US 1,557,857 , la porte palière pour un étage considéré ne doit pouvoir s'ouvrir que lorsque la cabine est à l'étage choisi. Dans ce but, il est connu d'utiliser une serrure à sécurité positive, c'est-à-dire dont le pêne n'est libéré complètement qu'à condition que tous les paramètres concernant la fermeture de la porte soient réunis. Pour cela, un bras de manoeuvre d'un levier de commande du pêne est usuellement actionné dans un plan frontal ou latéral par une came fixe ou mobile qui est solidaire de la cabine de l'appareil élévateur.For the record, it is recalled that in a lifting device installation, as illustrated by the document US 1,557,857 , the landing door for a given floor must only be able to open when the cabin is on the chosen floor. For this purpose, it is known to use a positive safety lock, i.e. one whose bolt is only completely released if all the parameters concerning the closing of the door are met. For this, an operating arm of a bolt control lever is usually actuated in a frontal or lateral plane by a fixed or movable cam which is integral with the cabin of the lifting device.

Or, il n'est pas toujours possible de disposer d'une telle came d'actionnement du pêne, par exemple dans le cas d'appareils élévateurs ne disposant pas de cabine et destinés au déplacement de personnes à mobilité réduite évoluant par exemple en fauteuil roulant, et dans le cas d'appareils élévateurs à cabines dont toutes les portes palières ne s'ouvrent pas dans un seul sens pour des raisons techniques.However, it is not always possible to have such a cam for actuating the bolt, for example in the case of lifting devices which do not have a cabin and are intended for the movement of persons with reduced mobility, for example in wheelchairs, and in the case of lifting devices with cabins where not all the landing doors open in one direction only for technical reasons.

On comprend que dans ce dernier cas, la came dont est équipée la cabine ne peut pas assurer sa fonction.It is understood that in this latter case, the cam with which the cabin is equipped cannot perform its function.

Pour remédier à cet inconvénient, il est connu de recourir à des dispositifs à commande électrique aptes à agir directement sur le pêne de verrouillage. L'un de ces dispositifs consiste à disposer d'un électroaimant dont le noyau ferromagnétique mobile est couplé à l'organe à commander pouvant être un pêne selon l'exemple d'application choisi. L'électroaimant peut être commandé par un signal électrique en fonction de la position d'une cabine ou d'une plateforme de l'appareil élévateur.To overcome this drawback, it is known to use electrically controlled devices capable of acting directly on the locking bolt. One of these devices consists of having an electromagnet whose movable ferromagnetic core is coupled to the member to be controlled which may be a bolt according to the chosen application example. The electromagnet can be controlled by an electrical signal depending on the position of a cabin or platform of the lifting device.

Un inconvénient majeur de ce dispositif de commande à électroaimant couplé à un pêne usuellement équipé d'un moyen de rappel mécanique, réside dans la force d'attraction d'intensité élevée requise pour agir sur le pêne qui impose d'utiliser pour l'électroaimant une bobine de grandes dimensions. Un autre inconvénient de ce dispositif à électroaimant réside dans le fait que pendant tout le temps d'immobilisation de la cabine à un étage (par exemple la nuit), la bobine est alimentée en permanence afin de maintenir le pêne en position d'ouverture de la porte palière, ce qui est susceptible de provoquer un échauffement pouvant conduire à une destruction rapide de la bobine.A major drawback of this electromagnet control device coupled to a bolt usually equipped with a mechanical return means, lies in the high intensity attraction force required to act on the bolt which requires the use of a large coil for the electromagnet. Another drawback of this electromagnet device lies in the fact that during the entire time the car is immobilized on a floor (for example at night), the coil is permanently powered in order to keep the bolt in the opening position of the landing door, which is likely to cause heating which can lead to rapid destruction of the coil.

Le document de brevet FR 2 719 625 A1 , qui divulgue le préambule de la revendication 1, a présenté dans ce contexte une unité d'actionnement d'un élément de manoeuvre d'un pêne de sécurité pour une serrure de porte palière d'appareil élévateur, l'élément de manoeuvre étant mobile en rotation. L'unité d'actionnement selon ce document comprend à titre d'actionneur en rotation un moteur électrique qui est activable par un signal électrique et dont le mouvement rotatif est appliqué à une crémaillère à déplacement rectiligne, elle-même reliée à une partie d'une tige de commande.The patent document FR 2 719 625 A1 , which discloses the preamble of claim 1, has presented in this context an actuating unit of an operating element of a safety bolt for a landing door lock of a lifting device, the operating element being rotatable. The actuating unit according to this document comprises as a rotation actuator an electric motor which can be activated by an electrical signal and whose rotary movement is applied to a rectilinearly movable rack, itself connected to a part of a control rod.

Un inconvénient majeur de ce dispositif de commande à crémaillère rectiligne montée d'un côté de la tige entraînant le pêne réside dans l'exercice d'une action linéaire et tangentielle sur l'élément de manoeuvre du pêne, effort tangentiel qui génère, d'une part, un couple de rotation variable sur l'élément de manoeuvre en raison de la variation du rayon d'application utilisé et, d'autre part, qui se situe latéralement à l'élément de manoeuvre, ce qui impose d'avoir des positionnement différents du dispositif de commande pour une serrure dont le pêne sort du côté gauche et une serrure dont le pêne sort du côté droit.A major drawback of this control device with a rectilinear rack mounted on one side of the rod driving the bolt lies in the exercise of a linear and tangential action on the operating element of the bolt, a tangential force which generates, on the one hand, a variable rotation torque on the operating element due to the variation of the application radius used and, on the other hand, which is located laterally to the operating element, which requires having different positions of the control device for a lock whose bolt comes out on the left side and a lock whose bolt comes out on the right side.

Un but de la présente invention est de proposer une serrure de porte palière d'un appareil élévateur remédiant notamment aux inconvénients précités.An aim of the present invention is to propose a landing door lock for a lifting device which in particular overcomes the aforementioned drawbacks.

A cet effet, il est proposé une serrure selon la revendication 1.For this purpose, a lock according to claim 1 is provided.

Du fait de l'axe fixe de pivotement, on notera que le couple appliqué au bras de manoeuvre est constant puisque le rayon d'application de l'effort ne change pas, contrairement au dispositif de commande selon le document FR 2 719 625 A1 précité.Due to the fixed pivot axis, it will be noted that the torque applied to the operating arm is constant since the radius of application of the force does not change, unlike the control device according to the document FR 2 719 625 A1 above-mentioned.

On notera également que l'effort de rotation généré par l'actionneur en rotation, tel qu'un moteur électrique, et transmis par ce train d'engrenages, est conçu de telle sorte que l'unité d'actionnement peut être avantageusement utilisable dans le boîtier de la serrure tant pour une serrure dont le pêne sort du côté gauche du boîtier que pour une serrure dont le pêne sort du côté droit du boîtier, i.e. sans requérir de modifications substantielles du dispositif de commande ni des composants additionnels en fonction du côté d'ouverture de la porte. Il en résulte une économie de constituants pour la serrure, quel que soit le côté de verrouillage/ déverrouillage de la porte qui en est équipée.It will also be noted that the rotational force generated by the rotating actuator, such as an electric motor, and transmitted by this gear train, is designed such that the actuating unit can be advantageously used in the lock housing both for a lock whose bolt extends from the left side of the housing and for a lock whose bolt extends from the right side of the housing, i.e. without requiring substantial modifications to the control device or additional components depending on the opening side of the door. This results in a saving of components for the lock, regardless of the locking/unlocking side of the door equipped with it.

Selon une autre caractéristique de l'invention, ledit secteur cranté peut présenter une forme de demi-couronne circulaire comprenant une portion centrale recouverte de crans radiaux et deux portions terminales qui sont respectivement fixées à deux ailes prolongeant à angle droit un sommet dudit bras de manoeuvre monté sur ledit axe fixe de pivotement, ledit bras de manoeuvre pouvant présenter globalement une forme de T dont l'extrémité libre opposée audit sommet est reliée audit organe, de telle sorte que lesdites portions terminales dudit secteur cranté forment un triangle sensiblement isocèle avec ladite extrémité libre dudit bras de manoeuvre.According to another characteristic of the invention, said notched sector may have the shape of a circular half-crown comprising a central portion covered with radial notches and two terminal portions which are respectively fixed to two wings extending at right angles a vertex of said operating arm mounted on said fixed pivot axis, said operating arm may have a general T shape whose free end opposite said vertex is connected to said member, such that said terminal portions of said notched sector form a substantially isosceles triangle with said free end of said operating arm.

On notera que cette forme de demi-cercle pour la crémaillère courbe dont les dents formant ces crans radiaux (i.e. des dents dont les sommets ou arêtes sommitales s'étendent le long de la direction d'un rayon du demi-cercle passant par l'axe fixe de pivotement) sont prévues au centre de cette crémaillère permet ainsi, via ses portions terminales, le montage solidaire en rotation du bras de manoeuvre et de cette crémaillère de telle sorte que la crémaillère courbe et le bras dont elle est pourvue admettent comme plan commun de symétrie le plan longitudinal médian du bras.It will be noted that this semi-circle shape for the curved rack whose teeth forming these radial notches (i.e. teeth whose summits or summit edges extend along the direction of a radius of the semi-circle passing through the fixed pivot axis) are provided at the center of this rack thus allows, via its terminal portions, the assembly integral in rotation with the operating arm and this rack such that the curved rack and the arm with which it is provided admit as a common plane of symmetry the median longitudinal plane of the arm.

Selon un premier mode de réalisation de l'invention, ledit secteur cranté est monobloc, ladite portion centrale recouverte de crans radiaux étant formée d'un seul tenant avec lesdites portions terminales qui sont respectivement fixées auxdites ailes dudit bras de manoeuvre par deux éléments de fixation d'axes parallèles audit axe fixe de pivotement.According to a first embodiment of the invention, said notched sector is in one piece, said central portion covered with radial notches being formed in one piece with said terminal portions which are respectively fixed to said wings of said operating arm by two fixing elements with axes parallel to said fixed pivot axis.

Ces éléments de fixation sont par exemple montés de manière à relier le bras de manoeuvre au secteur cranté de manière indéformable (i.e. sans degré de liberté du bras par rapport au secteur cranté).These fixing elements are, for example, mounted in such a way as to connect the operating arm to the notched sector in a non-deformable manner (i.e. without any degree of freedom of the arm relative to the notched sector).

Selon une variante de réalisation de l'invention conformément à ce premier mode, lesdites portions terminales sont pourvues de trous oblongs en arcs de cercle, pour permettre un déplacement desdits éléments de fixation dans lesdits trous oblongs lorsque, sans utiliser ledit actionneur ni ledit au moins un pignon, on imprime une rotation audit axe fixe de pivotement par une clef extérieure de secours entraînant la rotation dudit bras de manoeuvre et la translation dudit organe, pour l'obtention réversible de ladite position rentrée de déverrouillage.According to an alternative embodiment of the invention in accordance with this first mode, said terminal portions are provided with oblong holes in arcs of a circle, to allow movement of said fixing elements in said oblong holes when, without using said actuator or said at least one pinion, rotation is imparted to said fixed pivot axis by an external emergency key causing rotation of said operating arm and translation of said member, for reversibly obtaining said retracted unlocking position.

On notera que ces trous oblongs permettent ainsi le déblocage de l'organe par le bras de manoeuvre au moyen de cette clef lorsque l'actionneur, tel qu'un moteur électrique, est bloqué.It should be noted that these oblong holes thus allow the unlocking of the organ by the operating arm using this key when the actuator, such as an electric motor, is blocked.

Selon un second mode de réalisation de l'invention, ledit secteur cranté est réalisé en au moins deux parties, comprenant :

  • un support de secteur qui forme Ă  la fois ladite portion centrale et lesdites portions terminales et est fixĂ© audit bras de manoeuvre, et
  • un revĂŞtement crantĂ© amovible prĂ©sentant lesdits crans radiaux qui est montĂ© coulissant dans ladite portion centrale dudit support de sorte Ă  se trouver en butĂ©e en une extrĂ©mitĂ© de ladite portion centrale.
According to a second embodiment of the invention, said notched sector is made in at least two parts, comprising:
  • a sector support which forms both said central portion and said end portions and is fixed to said operating arm, and
  • a removable notched covering having said radial notches which is slidably mounted in said central portion of said support so as to be in abutment at one end of said central portion.

Ce montage coulissant du revêtement cranté dans la portion centrale du support peut être obtenu par un assemblage de type nervure en arc de cercle formant coulisseau sur la face inférieure du revêtement (opposée à sa face supérieure présentant les crans) / rainure en arc de cercle formée sur la face supérieure en regard de la portion centrale du support, ou inversement.This sliding assembly of the notched covering in the central portion of the support can be obtained by an assembly of the arc-shaped rib type forming a slide on the lower face of the covering. (opposite its upper face showing the notches) / groove in an arc of a circle formed on the upper face opposite the central portion of the support, or vice versa.

On notera que ce montage coulissant avec butée latérale permet, en plus du déverrouillage précité par la clef de secours, une mise en rotation du bras de manoeuvre grâce à la rotation générée par l'actionneur et transmise à et par la crémaillère courbe, puis un retour en position initiale par l'intermédiaire de la poussée exercée par les moyens de rappel appliqués contre l'organe de verrouillage/ déverrouillage. La butée entre le revêtement cranté et le support de secteur sert pour l'entraînement par le moteur, alors que l'éloignement de cette butée sert lors du déverrouillage par la clef.It should be noted that this sliding assembly with lateral stop allows, in addition to the aforementioned unlocking by the emergency key, a rotation of the operating arm thanks to the rotation generated by the actuator and transmitted to and by the curved rack, then a return to the initial position by means of the thrust exerted by the return means applied against the locking/unlocking member. The stop between the notched coating and the sector support is used for driving by the motor, while the distance from this stop is used during unlocking by the key.

Selon une variante de réalisation de l'invention conformément à ce second mode, ledit secteur cranté comprend en outre des moyens de rappel comprenant deux ressorts hélicoïdaux de compression précontraints, qui sont respectivement montés des deux côtés et en appui contre ledit revêtement cranté, de sorte à autoriser un sur-couple exercé sur ledit revêtement cranté entraînant par coulissement relatif un déplacement momentané en arc de cercle dudit revêtement cranté par rapport audit support de secteur puis un retour en position initiale quand ledit sur-couple est annulé, l'un desdits ressorts précontraints étant comprimé et l'autre détendu lors de l'obtention de ladite position de déverrouillage.According to an alternative embodiment of the invention in accordance with this second mode, said notched sector further comprises return means comprising two pre-stressed helical compression springs, which are respectively mounted on both sides and bearing against said notched covering, so as to allow an over-torque exerted on said notched covering causing, by relative sliding, a momentary displacement in an arc of a circle of said notched covering relative to said sector support then a return to the initial position when said over-torque is cancelled, one of said pre-stressed springs being compressed and the other relaxed when said unlocking position is obtained.

On notera que cette variante permet ainsi non seulement d'obtenir ce sur-couple avec un déplacement curviligne réversible du revêtement cranté sur le support de secteur, mais encore un entraînement en rotation du bras de manoeuvre même lorsque l'actionneur, tel qu'un moteur électrique, est bloqué, étant précisé que ce coulissement curviligne comprime l'un des deux ressorts précontraints en détendant l'autre.It should be noted that this variant thus makes it possible not only to obtain this over-torque with a reversible curvilinear movement of the notched coating on the sector support, but also a rotational drive of the operating arm even when the actuator, such as an electric motor, is blocked, it being specified that this curvilinear sliding compresses one of the two pre-stressed springs while relaxing the other.

Selon une autre variante de réalisation de l'invention conformément à ce second mode, ledit secteur cranté comprend en outre des moyens de liaison séparables de type à clips et tétons d'entraînement entre ledit revêtement cranté et ledit support de secteur, lesdits moyens de liaison étant adaptés pour maintenir ledit revêtement cranté en déplacement suivant un arc de cercle par rapport audit support de secteur par coulissement relatif et pour l'obtention d'un débrayage dudit bras de manoeuvre par rapport audit secteur cranté notamment lors d'un sur-couple exercé sur ledit revêtement cranté, ou pour obtenir la rotation dudit bras de manoeuvre et la translation dudit organe dans ladite position de déverrouillage, par une rotation imprimée directement audit axe fixe de pivotement par ladite clef de secours.According to another variant embodiment of the invention in accordance with this second mode, said notched sector further comprises separable connecting means of the clip and drive pin type between said notched covering and said sector support, said connecting means being adapted to maintain said notched covering in movement according to an arc of a circle relative to said sector support by relative sliding and for obtaining a disengagement of said operating arm relative to said notched sector, in particular during an over-torque exerted on said notched coating, or for obtaining the rotation of said operating arm and the translation of said member in said unlocking position, by a rotation directly imparted to said fixed pivot axis by said emergency key.

On notera ainsi que ces moyens de liaison à clips et tétons permettent d'utiliser la clef de secours pour faire coulisser de manière curviligne avec « déclipsage » (i.e. séparation des clips) le revêtement cranté sur le support de secteur, lorsque l'actionneur, tel qu'un moteur électrique, est bloqué.It will thus be noted that these clip and stud connection means make it possible to use the emergency key to slide in a curvilinear manner with “unclipping” (i.e. separation of the clips) the notched covering on the sector support, when the actuator, such as an electric motor, is blocked.

Selon une autre caractéristique de l'invention, dans ladite position rentrée de déverrouillage, ledit axe fixe de pivotement peut être situé sensiblement à égale distance d'une extrémité desdits moyens de rappel montés contre ladite première paroi dudit boîtier et d'une extrémité axialement externe opposée dudit organe montée affleurant ladite seconde paroi dudit boîtier.According to another characteristic of the invention, in said retracted unlocking position, said fixed pivot axis can be located substantially at an equal distance from one end of said return means mounted against said first wall of said housing and from an axially external end opposite said member mounted flush with said second wall of said housing.

On notera que ledit axe fixe de pivotement est en outre perpendiculaire à un plan contenant ledit axe de translation et l'axe longitudinal de symétrie du bras de manoeuvre.It will be noted that said fixed pivot axis is further perpendicular to a plane containing said translation axis and the longitudinal axis of symmetry of the operating arm.

Selon une autre caractéristique particulièrement avantageuse de l'invention commune aux premier et second modes de réalisation précités, ledit actionneur en rotation comprend un moteur électrique pas à pas couplé à une électronique de commande et optionnellement en outre à un groupe réducteur.According to another particularly advantageous characteristic of the invention common to the first and second embodiments mentioned above, said rotation actuator comprises a stepper electric motor coupled to control electronics and optionally also to a reduction group.

On notera en effet que l'utilisation d'un moteur électrique pas à pas spécifiquement en combinaison avec le secteur cranté selon l'invention permet l'obtention d'un couple final plus élevé sur le bras de manoeuvre pour une consommation électrique plus réduite, qu'avec un moteur électrique usuel.It will be noted that the use of a stepper electric motor specifically in combination with the notched sector according to the invention makes it possible to obtain a higher final torque on the operating arm for a lower electrical consumption than with a conventional electric motor.

De manière générale, en fonctionnement, l'actionneur tel qu'un moteur électrique de préférence pas à pas est activable à partir d'un signal agissant positivement ou négativement sur son alimentation de manière à modifier la position de l'organe de verrouillage/ déverrouillage, étant rappelé que la clef de secours précitée et la force de rappel indépendante exercée par les moyens de rappels appliqués contre cet organe lors d'une coupure d'alimentation de l'actionneur permettent également de modifier la position de cet organe.Generally speaking, in operation, the actuator such as an electric motor, preferably a stepper motor, can be activated from a signal acting positively or negatively on its power supply so as to modify the position of the locking/unlocking member, it being recalled that the aforementioned emergency key and the independent return force exerted by the return means applied against this member during a power cut to the actuator also make it possible to modify the position of this member.

D'autres caractéristiques, avantages et détails de la présente invention ressortiront à la lecture de la description suivante d'exemples de réalisation de l'invention, donnés à titre illustratif et non limitatif, la description étant réalisée en référence aux dessins joints, parmi lesquels :

  • les figures 1 et 2 sont des vues frontales de l'intĂ©rieur d'une serrure pour porte palière d'appareil Ă©lĂ©vateur selon un exemple du premier mode de l'invention, le pĂŞne de sĂ©curitĂ© y Ă©tant montrĂ© respectivement en position sortie de verrouillage et rentrĂ©e de dĂ©verrouillage dans le boĂ®tier recevant le dispositif de commande du pĂŞne,
  • les figures 3 et 4 sont des vues frontales de ce seul dispositif de commande isolĂ© (montrĂ© dans le boĂ®tier), respectivement dans les positions sortie et rentrĂ©e du pĂŞne selon les figures 1 et 2,
  • la figure 5 est une vue de dessus et en perspective du bras de manoeuvre montĂ© solidaire d'un secteur crantĂ© monobloc du dispositif selon les figures 1 Ă  4,
  • les figures 6 et 7 sont des vues frontales du seul dispositif de commande selon une variante du premier mode illustrĂ© aux figures 1 Ă  4 avec des trous oblongs dans le secteur crantĂ©, respectivement dans les positions sortie et rentrĂ©e du pĂŞne,
  • la figure 8 est une vue frontale du dispositif de commande des figures 6 et 7 montrant l'utilisation d'une clĂ© de secours pour dĂ©verrouiller le pĂŞne,
  • la figure 9 est une vue Ă©clatĂ©e de dessus et en perspective montrant la fixation du bras de manoeuvre par les trous oblongs du secteur crantĂ© des figures 6 Ă  8,
  • les figures 10 et 11 sont des vues frontales du seul dispositif de commande respectivement en position sortie et rentrĂ©e du pĂŞne, selon un exemple du second mode de rĂ©alisation de l'invention avec le secteur crantĂ© en deux parties,
  • la figure 12 est une vue frontale du dispositif de commande des figures 10 et 11 montrant l'utilisation d'une clĂ© de secours pour dĂ©verrouiller le pĂŞne,
  • la figure 13 est une vue Ă©clatĂ©e de dessus et en perspective montrant le montage en coulissement d'un revĂŞtement crantĂ©, visible dans la vue de dessous en perspective de la figure 13a, dans un support du secteur crantĂ©,
  • les figures 14 et 15 sont des vues frontales du seul dispositif de commande respectivement en position sortie et rentrĂ©e du pĂŞne, selon une variante du second mode de rĂ©alisation de l'invention du secteur crantĂ© en deux parties, qui est couplĂ© Ă  deux ressorts prĂ©contraints,
  • la figure 16 est une vue frontale du dispositif de commande des figures 14 et 15 montrant l'utilisation d'une clĂ© de secours pour dĂ©verrouiller le pĂŞne,
  • la figure 17 est une vue Ă©clatĂ©e de dessus et en perspective montrant le montage d'un revĂŞtement crantĂ©, visible dans la vue de dessous en perspective de la figure 17a, dans un support du secteur crantĂ© muni des deux ressorts des figures 14 Ă  16,
  • la figure 18 est une vue frontale avec arrachements partiels du dispositif de commande des figures 14 Ă  17, montrant les positions des deux ressorts si la translation du pĂŞne est bloquĂ©e en position verrouillĂ©e ou semi-verrouillĂ©e par une action extĂ©rieure,
  • les figures 19 et 20 sont des vues frontales du seul dispositif de commande respectivement en position sortie et rentrĂ©e du pĂŞne, selon une autre variante du second mode de rĂ©alisation de l'invention du secteur crantĂ© en deux parties avec clips et tĂ©tons d'entrainement,
  • la figure 21 est une vue frontale du dispositif de commande des figures 19 et 20 montrant l'utilisation d'une clĂ© de secours pour dĂ©verrouiller le pĂŞne par sĂ©paration des clips et des tĂ©tons, et
  • la figure 22 est une vue Ă©clatĂ©e de dessus et en perspective montrant le montage d'un revĂŞtement crantĂ©, visible dans la vue de dessous en perspective de la figure 22a, dans un support du secteur crantĂ© muni des clips et tĂ©tons des figures 19 Ă  21.
Other features, advantages and details of the present invention will emerge from reading the following description of exemplary embodiments of the invention, given for illustrative and non-limiting purposes, the description being made with reference to the attached drawings, among which:
  • THE Figures 1 and 2 are front views of the interior of a lock for a landing door of a lifting device according to an example of the first embodiment of the invention, the safety bolt being shown respectively in the extended locking position and the retracted unlocking position in the housing receiving the bolt control device,
  • THE Figures 3 and 4 are front views of this single isolated control device (shown in the housing), respectively in the extended and retracted positions of the bolt according to the Figures 1 and 2 ,
  • there figure 5 is a top and perspective view of the operating arm mounted integrally with a single-piece notched sector of the device according to the Figures 1 to 4 ,
  • THE Figures 6 and 7 are front views of the single control device according to a variant of the first mode illustrated in Figures 1 to 4 with oblong holes in the notched sector, respectively in the extended and retracted positions of the bolt,
  • there figure 8 is a front view of the control device of the Figures 6 and 7 showing the use of a spare key to unlock the bolt,
  • there figure 9 is an exploded top and perspective view showing the fixing of the operating arm by the oblong holes of the notched sector of the figures 6 to 8 ,
  • THE Figures 10 and 11 are front views of the single control device respectively in the extended and retracted position of the bolt, according to an example of the second embodiment of the invention with the notched sector in two parts,
  • there figure 12 is a front view of the control device of the Figures 10 and 11 showing the use of a spare key to unlock the bolt,
  • there figure 13 is an exploded top and perspective view showing the sliding assembly of a notched covering, visible in the bottom perspective view of the figure 13a , in a notched sector support,
  • THE Figures 14 and 15 are front views of the single control device respectively in the extended and retracted position of the bolt, according to a variant of the second embodiment of the invention of the notched sector in two parts, which is coupled to two pre-stressed springs,
  • there figure 16 is a front view of the control device of the Figures 14 and 15 showing the use of a spare key to unlock the bolt,
  • there figure 17 is an exploded top and perspective view showing the assembly of a notched covering, visible in the bottom perspective view of the figure 17a , in a notched sector support fitted with the two springs of the Figures 14 to 16 ,
  • there figure 18 is a front view with partial cutaways of the control device of the Figures 14 to 17 , showing the positions of the two springs if the translation of the bolt is blocked in the locked or semi-locked position by an external action,
  • THE Figures 19 and 20 are front views of the single control device respectively in the extended and retracted positions of the bolt, according to another variant of the second embodiment of the invention of the notched sector in two parts with clips and drive pins,
  • there figure 21 is a front view of the control device of the Figures 19 and 20 showing the use of a spare key to unlock the bolt by separating the clips and pins, and
  • there figure 22 is an exploded top and perspective view showing the assembly of a notched covering, visible in the bottom perspective view of the figure 22a , in a notched sector support fitted with the clips and nipples of the Figures 19 to 21 .

La serrure 1 de porte palière pour appareil élévateur selon l'exemple du premier mode de l'invention visible aux figures 1-5 comprend essentiellement :

  • un boĂ®tier 2 de la serrure 1 notamment dĂ©limitĂ© par une première paroi latĂ©rale 3, une seconde paroi latĂ©rale 4 opposĂ©e traversĂ©e par un pĂŞne de sĂ©curitĂ© 5, une paroi supĂ©rieure 6 et une paroi infĂ©rieure 7 (la paroi frontale opposĂ©e Ă  la paroi de fond 8 n'Ă©tant pas visible aux figures 1-2),
  • le pĂŞne 5 pour verrouiller/ dĂ©verrouiller la porte palière en position fermĂ©e, et
  • un dispositif de commande 10 apte Ă  commander le pĂŞne 5 en position sortie de verrouillage et rentrĂ©e de dĂ©verrouillage.
The landing door lock 1 for a lifting device according to the example of the first embodiment of the invention visible in Figures 1-5 mainly includes:
  • a housing 2 of the lock 1 in particular delimited by a first side wall 3, a second opposite side wall 4 crossed by a safety bolt 5, an upper wall 6 and a lower wall 7 (the front wall opposite the bottom wall 8 not being visible to the Figures 1-2 ),
  • bolt 5 to lock/unlock the landing door in the closed position, and
  • a control device 10 capable of controlling the bolt 5 in the extended locking position and retracted unlocking position.

Le dispositif de commande 10 comprend essentiellement (voir figure 3) :

  • des moyens de manoeuvre 10a du pĂŞne 5 adaptĂ©s pour l'amener rĂ©versiblement en translation suivant un axe de translation X (perpendiculaire aux plans des première et seconde parois latĂ©rales 3 et 4) de la position sortie de la figure 1 Ă  la position rentrĂ©e de la figure 2 par rapport Ă  la seconde paroi latĂ©rale 4, et
  • une unitĂ© d'actionnement 10b activable par un signal Ă©lectrique et adaptĂ©e pour actionner les moyens de manoeuvre 10a.
The control device 10 essentially comprises (see figure 3 ) :
  • operating means 10a of the bolt 5 adapted to bring it reversibly into translation along a translation axis X (perpendicular to the planes of the first and second side walls 3 and 4) from the extended position of the figure 1 in the retracted position of the figure 2 relative to the second side wall 4, and
  • an actuating unit 10b activatable by an electrical signal and adapted to actuate the operating means 10a.

Plus précisément, les moyens de manoeuvre 10a comprennent :

  • des moyens de rappel 11 constituĂ©s dans cet exemple d'un ressort hĂ©licoĂŻdal de compression qui rappelle le pĂŞne 5 en position sortie avec une force de rappel d'intensitĂ© F et est montĂ© en appui suivant l'axe de translation X entre la première paroi 3 et une extrĂ©mitĂ© axialement interne 5a du pĂŞne 5, et
  • un bras de manoeuvre 12 reliĂ© (e.g. articulĂ© ou couplĂ© d'une autre manière) au pĂŞne 5 de telle sorte qu'une rotation du bras 12 entraĂ®ne une translation du pĂŞne 5 Ă  travers la seconde paroi 4.
More specifically, the operating means 10a comprise:
  • return means 11 consisting in this example of a helical compression spring which returns the bolt 5 to the extended position with a return force of intensity F and is mounted in support along the translation axis X between the first wall 3 and an axially internal end 5a of the bolt 5, and
  • an operating arm 12 connected (eg articulated or otherwise coupled) to the bolt 5 such that a rotation of the arm 12 causes a translation of the bolt 5 through the second wall 4.

Selon l'invention, l'unité d'actionnement 10b comprend (voir figures 3-4) :

  • * un actionneur en rotation 13 constituĂ© de prĂ©fĂ©rence d'un moteur Ă©lectrique pas Ă  pas couplĂ© Ă  une Ă©lectronique de commande (non reprĂ©sentĂ©e) et optionnellement Ă  un groupe rĂ©ducteur, et
  • * des moyens de transmission 14 de la rotation du moteur Ă©lectrique 13 au bras de manoeuvre 12 qui comprennent un train d'engrenages comprenant un pignon 15 d'axe Y (perpendiculaire aux plans des parois supĂ©rieure 6 et infĂ©rieure 7 du boĂ®tier 2), couplĂ© Ă  un arbre de sortie 13a du moteur 13, et un secteur crantĂ© 16 formant crĂ©maillère courbe avec lequel s'engrène le pignon 15, le secteur crantĂ© 16 Ă©tant montĂ© pivotant autour d'un axe de pivotement P fixe par rapport Ă  la paroi de fond 8 du boĂ®tier 2 (l'axe fixe P est perpendiculaire aux plans des deux parois de fond 8 et frontale du boĂ®tier 2) et sur lequel axe fixe P est montĂ© pivotant le bras 12, lui-mĂŞme montĂ© solidaire en rotation du secteur crantĂ© 16.
According to the invention, the actuation unit 10b comprises (see Figures 3-4 ) :
  • * a rotating actuator 13 preferably consisting of a stepper electric motor coupled to control electronics (not shown) and optionally to a reduction group, and
  • * means 14 for transmitting the rotation of the electric motor 13 to the operating arm 12 which comprise a gear train comprising a pinion 15 with an axis Y (perpendicular to the planes of the upper 6 and lower 7 walls of the housing 2), coupled to an output shaft 13a of the motor 13, and a notched sector 16 forming a curved rack with which the pinion 15 meshes, the notched sector 16 being pivotally mounted about a pivot axis P fixed relative to the bottom wall 8 of the housing 2 (the fixed axis P is perpendicular to the planes of the two bottom 8 and front walls of the housing 2) and on which fixed axis P is pivotally mounted the arm 12, itself mounted integral in rotation with the notched sector 16.

Comme visible aux figures 3-5, le secteur cranté 16 est monobloc, présentant une forme de demi-couronne circulaire comprenant une portion centrale 17 recouverte de crans radiaux 17a et deux portions terminales 18 qui sont respectivement fixées, par deux éléments de fixation 19 d'axes parallèles à l'axe fixe P, à deux ailes 12a prolongeant à angle droit un sommet 12b du bras 12 monté sur l'axe fixe P. On voit que le bras 12 présente une forme de T symétrique dont l'extrémité libre 12c opposée au sommet 12b est couplée au pêne 5, de sorte que dans cet exemple les portions terminales 18 forment un triangle isocèle avec l'extrémité libre 12c du bras 12.As visible to the Figures 3-5 , the notched sector 16 is in one piece, having the shape of a circular half-crown comprising a central portion 17 covered with radial notches 17a and two terminal portions 18 which are respectively fixed, by two fixing elements 19 with axes parallel to the fixed axis P, to two wings 12a extending at right angles a vertex 12b of the arm 12 mounted on the fixed axis P. It can be seen that the arm 12 has the shape of a symmetrical T whose free end 12c opposite the vertex 12b is coupled to the bolt 5, so that in this for example the terminal portions 18 form an isosceles triangle with the free end 12c of the arm 12.

On voit aux figures 1-2 que l'axe fixe P est sensiblement aligné et médian par rapport aux éléments de fixation 19 du bras 12 sur le secteur cranté 16, la distance entre ces éléments de fixation 19 déterminant le diamètre du secteur cranté 16, lequel est prévu légèrement inférieur à la largeur du boîtier 2 mesurée entre ses première et seconde parois latérales 3 et 4 (voir figure 2).We see at Figures 1-2 that the fixed axis P is substantially aligned and median relative to the fixing elements 19 of the arm 12 on the notched sector 16, the distance between these fixing elements 19 determining the diameter of the notched sector 16, which is provided to be slightly less than the width of the housing 2 measured between its first and second side walls 3 and 4 (see figure 2 ).

Comme visible à la figure 5, l'axe fixe P est matérialisé par un pivot P' de géométrie globalement prismatique de section triangulaire tronquée en ses coins par des méplats, dans cet exemple de réalisation. Quant aux portions terminales 18 du secteur cranté 16, elles sont surélevées par rapport à sa portion centrale 17 dans la direction de l'axe fixe P via des épaulements, et chaque aile 12a du bras 12 comprend deux pattes 12aa superposées et distantes l'une de l'autre dans cette direction de l'axe fixe P qui sont adaptées pour enserrer une portion terminale 18 pour le montage traversant d'un élément de fixation 19. Chaque élément de fixation 19 traverse ainsi des orifices en regard des deux pattes 12aa de chaque aile 12a et de la portion terminale 18 qu'elles enserrent.As visible in the figure 5 , the fixed axis P is materialized by a pivot P' of generally prismatic geometry of triangular section truncated at its corners by flats, in this exemplary embodiment. As for the terminal portions 18 of the notched sector 16, they are raised relative to its central portion 17 in the direction of the fixed axis P via shoulders, and each wing 12a of the arm 12 comprises two legs 12aa superimposed and spaced from each other in this direction of the fixed axis P which are adapted to grip a terminal portion 18 for the through-mounting of a fixing element 19. Each fixing element 19 thus passes through orifices opposite the two legs 12aa of each wing 12a and the terminal portion 18 which they grip.

En fonctionnement, un engrènement via le moteur électrique 13 du pignon 15 sur le secteur cranté 16 entraîne une rotation de ce dernier autour de l'axe fixe P et un pivotement du bras 12 sur cet axe fixe P pour la commande en translation réversible du pêne 5 de sa position sortie de la figure 1 à sa position rentrée de la figure 2 (dans laquelle l'extrémité axialement externe 5b du pêne 5 affleure sensiblement la seconde paroi 4 du boîtier 2), et vice versa.In operation, a meshing via the electric motor 13 of the pinion 15 on the notched sector 16 causes a rotation of the latter around the fixed axis P and a pivoting of the arm 12 on this fixed axis P for the reversible translation control of the bolt 5 from its extended position of the figure 1 to its retracted position of the figure 2 (in which the axially external end 5b of the bolt 5 is substantially flush with the second wall 4 of the housing 2), and vice versa.

On voit en outre aux figures 1-2 qu'un positionnement inversé de l'ensemble pêne 5 - ressort de rappel 11 dans le cas d'une porte s'ouvrant de l'autre côté (i.e. avec le pêne 5 sortant non pas du côté droit du boîtier 2 comme sur les figures, mais du côté gauche) ne nécessiterait pas d'éléments additionnels dans le boîtier 2 ni de modifications substantielles du dispositif de commande 10 pour transmettre la rotation du moteur électrique 13 au bras 12 via le pignon 15 et le secteur cranté 16.We also see in the Figures 1-2 that a reverse positioning of the bolt 5 - return spring 11 assembly in the case of a door opening on the other side (i.e. with the bolt 5 coming out not from the right side of the housing 2 as in the figures, but from the left side) would not require additional elements in the housing 2 nor substantial modifications to the device of control 10 for transmitting the rotation of the electric motor 13 to the arm 12 via the pinion 15 and the notched sector 16.

Dans la description suivante de variantes et d'un autre mode de réalisation de l'invention, les mêmes références numériques désignent des éléments de même structure ou au moins de même fonction, étant précisé que le principe de fonctionnement de chaque nouveau dispositif de commande présenté est similaire à celui qui vient d'être décrit en référence aux figures 1-5.In the following description of variants and of another embodiment of the invention, the same reference numerals designate elements of the same structure or at least of the same function, it being specified that the operating principle of each new control device presented is similar to that which has just been described with reference to the Figures 1-5 .

Le dispositif de commande 10' des figures 6-9 correspond à une variante de l'exemple des figures 1-5 toujours selon le premier mode de l'invention, qui se distingue uniquement de cet exemple en ce que les portions terminales 18' surélevées du secteur cranté monobloc 16' présentent respectivement deux trous oblongs 18a en arcs de cercle symétriques l'un de l'autre adaptés pour recevoir en coulissement curviligne les éléments de fixation 19 (visibles à la figure 9 et constitués comme aux figures 1-6 de deux pions tubulaires 19 munis dans cet exemple de collerettes 19a et bagues de blocage 19b). Chaque élément de fixation 19, qui traverse les deux pattes 12aa de l'aile 12a et le trou oblong 18a en regard, coulisse le long du trou 18a correspondant du fait du degré de liberté en rotation existant ici entre les éléments 19 et le secteur cranté 16', avec mise en butée simultanée des éléments 19 contre les extrémités opposées des trous oblongs 18a.The 10' control device of the Figures 6-9 corresponds to a variant of the example of Figures 1-5 still according to the first embodiment of the invention, which differs from this example only in that the raised terminal portions 18' of the single-piece notched sector 16' respectively have two oblong holes 18a in arcs of a circle symmetrical to each other adapted to receive in curvilinear sliding the fixing elements 19 (visible in the figure) figure 9 and constituted as in Figures 1-6 of two tubular pins 19 provided in this example with collars 19a and locking rings 19b). Each fixing element 19, which passes through the two legs 12aa of the wing 12a and the oblong hole 18a opposite, slides along the corresponding hole 18a due to the degree of freedom in rotation existing here between the elements 19 and the notched sector 16', with simultaneous abutment of the elements 19 against the opposite ends of the oblong holes 18a.

Comme visible à la figure 8, on peut manoeuvrer directement l'axe fixe P dans le sens de la flèche M au moyen d'une clef de secours 20 quand le moteur 13 est bloqué, par exemple, afin de faire tourner le bras 12 dans le sens permettant de déplacer le pêne 5 en l'amenant de sa position sortie à sa position rentrée de la figure 8. Dans ce cas, on peut déverrouiller le pêne 5 sans rotation du moteur 13 ni du pignon 15.As visible in the figure 8 , the fixed axis P can be operated directly in the direction of the arrow M by means of an emergency key 20 when the motor 13 is blocked, for example, in order to rotate the arm 12 in the direction allowing the bolt 5 to be moved from its extended position to its retracted position of the figure 8 . In this case, the bolt 5 can be unlocked without rotating the motor 13 or the pinion 15.

Le dispositif de commande 110 selon l'exemple du second mode de l'invention visible aux figures 10-13a se distingue essentiellement du premier mode des figures 1-5, en ce que le secteur cranté 116 est réalisé en deux parties 117 et 118 et comprend :

  • un support de secteur 117 qui forme Ă  la fois une portion centrale 116a et des portions terminales 116b du secteur 116 et qui est fixĂ© au bras 12, et
  • un revĂŞtement crantĂ© 118 amovible prĂ©sentant les crans radiaux 118a sur sa face supĂ©rieure, qui est montĂ© coulissant dans la portion centrale 116a du support 117 de sorte Ă  se trouver en butĂ©e en une extrĂ©mitĂ© de la portion centrale 116a.
The control device 110 according to the example of the second mode of the invention visible in Figures 10-13a is essentially distinguished from the first mode of Figures 1-5 , in that the notched sector 116 is made in two parts 117 and 118 and comprises:
  • a sector support 117 which forms both a central portion 116a and end portions 116b of the sector 116 and which is fixed to the arm 12, and
  • a removable notched covering 118 having the radial notches 118a on its upper face, which is slidably mounted in the central portion 116a of the support 117 so as to be in abutment at one end of the central portion 116a.

On voit aux figures 13 et 13a que le revêtement cranté 118 est apte à coulisser de façon curviligne dans la portion centrale 116a du support 117 via une nervure 118b en arc de cercle formée sur une face inférieure du revêtement 118 coopérant en coulissement avec une rainure 117b correspondante de la face supérieure de la portion centrale 116a.We see at Figures 13 and 13a that the notched covering 118 is able to slide in a curvilinear manner in the central portion 116a of the support 117 via a rib 118b in an arc of a circle formed on a lower face of the covering 118 cooperating in sliding with a corresponding groove 117b of the upper face of the central portion 116a.

Cette mise en butée mutuelle, d'un côté du secteur cranté 116, du revêtement 118 et du support 117, permet une mise en rotation du bras 12 par le moteur 13 puis un retour en position initiale par l'intermédiaire de la poussée F générée par le ressort 11 du pêne 5 et également, sans rotation du moteur 13 ni du pignon 15 (i.e. notamment quand le moteur 13 est bloqué), de manoeuvrer directement l'axe fixe P dans le sens de la flèche M au moyen d'une clef de secours 20 pour faire tourner le bras 12 dans le sens permettant d'amener le pêne 5 de sa position sortie à sa position rentrée de la figure 12.This mutual abutment, on one side of the notched sector 116, of the covering 118 and of the support 117, allows rotation of the arm 12 by the motor 13 then a return to the initial position by means of the thrust F generated by the spring 11 of the bolt 5 and also, without rotation of the motor 13 or of the pinion 15 (i.e. in particular when the motor 13 is blocked), to directly maneuver the fixed axis P in the direction of the arrow M by means of an emergency key 20 to rotate the arm 12 in the direction allowing the bolt 5 to be brought from its extended position to its retracted position of the figure 12 .

Le dispositif de commande 110' selon la variante du second mode de l'invention visible aux figures 14-18 se distingue essentiellement de l'exemple des figures 10-13a, en ce que (voir figures 16-17) le secteur cranté 116' en deux parties 117 et 118 comprend en outre deux ressorts hélicoïdaux de compression précontraints 119 et 120 respectivement montés des deux côtés et en appui contre le revêtement cranté 118. Ce montage permet non seulement un entraînement en rotation du bras 12 mais en outre d'autoriser un sur-couple sur le crantage 118a du revêtement 118, avec un coulissement curviligne momentané du revêtement 118 sur le support 117 solidaire du bras 12, puis un retour en position initiale quand le sur-couple est annulé.The control device 110' according to the variant of the second mode of the invention visible in Figures 14-18 is essentially distinguished from the example of Figures 10-13a , in that (see Figures 16-17 ) the notched sector 116' in two parts 117 and 118 further comprises two pre-stressed helical compression springs 119 and 120 respectively mounted on both sides and bearing against the notched covering 118. This assembly not only allows rotational drive of the arm 12 but also allows an over-torque on the notching 118a of the covering 118, with a momentary curvilinear sliding of the covering 118 on the support 117 secured to the arm 12, then a return to the initial position when the over-torque is cancelled.

La figure 16 illustre l'utilité des deux parties 117 et 118 et des ressorts 119 et 120 si le moteur 13 est bloqué. En effet, lorsque l'on déverrouille le pêne 5 avec la clé de secours 20 faisant tourner l'axe fixe P dans le sens requis, le revêtement 118 coulisse sur le support 117 en comprimant un ressort 119 et en détendant l'autre ressort 120.There figure 16 illustrates the usefulness of the two parts 117 and 118 and of the springs 119 and 120 if the motor 13 is blocked. Indeed, when the bolt 5 is unlocked with the emergency key 20 rotating the fixed axis P in the required direction, the covering 118 slides on the support 117 by compressing one spring 119 and relaxing the other spring 120.

La figure 18 illustre encore l'utilité des deux parties 117 et 118 et des ressorts 119 et 120 si la translation du pêne 5 est temporairement ou définitivement bloquée en position verrouillée ou semi-verrouillée par une action extérieure (voir force F1 exercée sur le pêne 5), l'un des ressorts 120 se comprimant alors que l'autre ressort 119 se détend en proportion.There figure 18 further illustrates the usefulness of the two parts 117 and 118 and of the springs 119 and 120 if the translation of the bolt 5 is temporarily or permanently blocked in the locked or semi-locked position by an external action (see force F1 exerted on the bolt 5), one of the springs 120 compressing while the other spring 119 relaxes proportionally.

Le dispositif de commande 110" selon l'autre variante du second mode de l'invention visible aux figures 19-22a se distingue essentiellement de la variante des figures 14-18, en ce que (voir figures 22-22a) le secteur cranté 116" en deux parties 117 et 118 comprend en outre des moyens de liaison séparables de type à clips 121 et tétons d'entraînement 122 entre le revêtement cranté 118 et le support de secteur 117. Comme visible à la figure 22a, les clips 121 sont agencés de part et d'autre de la nervure 118b sur la face inférieure du revêtement cranté 118.The control device 110" according to the other variant of the second mode of the invention visible in Figures 19-22a is essentially distinguished from the variant of Figures 14-18 , in that (see Figures 22-22a ) the notched sector 116" in two parts 117 and 118 further comprises separable connecting means of the clip type 121 and drive pins 122 between the notched covering 118 and the sector support 117. As visible in the figure 22a , the clips 121 are arranged on either side of the rib 118b on the lower face of the notched covering 118.

La figure 21 illustre l'utilité des deux parties 117 et 118 et des clips/ tétons 121 si le moteur 13 est bloqué. En effet, lorsque l'on déverrouille le pêne 5 avec la clé de secours 20, le revêtement 118 coulisse par rapport au support de secteur 117 en se déclipsant (i.e. par séparation des clips 121 et tétons 122).There figure 21 illustrates the usefulness of the two parts 117 and 118 and the clips/nipples 121 if the motor 13 is blocked. Indeed, when the bolt 5 is unlocked with the emergency key 20, the covering 118 slides relative to the sector support 117 by unclipping (i.e. by separation of the clips 121 and nipples 122).

De plus, grâce à ce montage, le revêtement cranté 118 est maintenu en coulissement curviligne sur le support de secteur 117 solidaire du bras 12 par l'intermédiaire des clips 121 et tétons 122, permettant alors un débrayage du bras 12 par rapport au revêtement cranté 118 par exemple lors d'un sur-couple.Furthermore, thanks to this assembly, the notched covering 118 is held in curvilinear sliding on the sector support 117 secured to the arm 12 by means of the clips 121 and pins 122, then allowing the arm 12 to be disengaged relative to the notched covering 118, for example during an over-torque.

Claims (9)

  1. Lock (1) for a landing door of a lifting device, the lock
    (1) comprising
    a housing (2),
    a bolt (5) for locking/unlocking the landing door, and
    a control device (10, 10', 110, 110', 110") for controlling the bolt (5) for locking/unlocking,
    the device comprising:
    - operating means (10a) for said bolt (5) adapted to bring it reversibly into translation along a translation axis (X) from an extended locking position to a retracted unlocking position relative to the housing (2) of the lock (1), said operating means comprising:
    * return means (11) which return said bolt (5) to the extended locking position and which are mounted to bear along said translation axis between a first wall (3) of said housing (2) and an axially internal end (5a) of said bolt (5), said return means comprising for example a helical compression spring (11), and
    * an operating arm (12) connected to said bolt (5) such that a rotation of said operating arm (12) causes a translation of said bolt (5) through a second wall (4) of said housing (2) opposite of said first wall (3), the said operating arm (12) being pivotally mounted about a fixed pivot axis (P) relative to said housing (2) which is orthogonal and non-intersecting to said translation axis (X); and
    - an actuating unit (10b) activatable by an electrical signal and adapted to actuate in rotation said operating arm (12), the actuating unit comprising:
    * a rotation actuator (13) comprising for example an electric motor (13), and
    * transmission means (14) of the rotation of said actuator (13) to said operating arm (12), said transmission means (14) comprising a gear train comprising at least one pinion (15) coupled to an output shaft (13a) of said actuator (13), characterized in that
    - said transmission means (14) comprise a notched sector (16, 16', 116, 116', 116") forming a curved rack with which said at least one pinion (15) meshes, said notched sector being pivotally mounted about said fixed pivot axis (P),
    - the operating arm (12) is mounted integral in rotation with said notched sector, such that meshing of said at least one pinion (15) on said notched sector causes rotation of said notched sector about said fixed axis (P) and pivoting of said operating arm (12) on said fixed axis (P) for the translational control of said bolt (5),
    - said fixed pivot axis (P) is provided parallel to and substantially at an equal distance from said first wall (3) and said second wall (4) of said housing while said translation axis (X) of said bolt (5) is provided perpendicular to said first wall and to said second wall.
  2. Lock (1) according to claim 1, wherein said notched sector (16, 16', 116, 116', 116") has a circular half-crown shape comprising a central portion (17, 116a) covered with radial notches (17a, 118a).
  3. Lock (1) according to claim 2, wherein said notched sector (16, 16') is in one piece, said central portion (17) covered with radial notches (17a) being formed in one piece with end portions (18, 18') of said notched sector which are respectively fixed to said operating arm (12) by two fixing elements (19) with axes parallel to said fixed pivot axis (P).
  4. Lock (1) according to claim 3, in which said terminal portions (18') are provided with oblong holes (18a) in arcs of a circle, to allow movement of said fixing elements (19) in said oblong holes when, without using said actuator (13) or said at least one pinion (15), rotation is imparted to said fixed pivot axis (P) by an external emergency key (20) causing rotation of said operating arm (12) and translation of said bolt (5), for reversibly obtaining said retracted unlocking position.
  5. Lock (1) according to claim 2, in which said notched sector (116, 116', 116") is made in at least two parts, comprising:
    - a sector support (117) which forms both said central portion (116a) and end portions (116b) of said notched sector and which is fixed to said operating arm (12), and
    - a removable notched covering (118) having said radial notches (118a) which is slidably mounted in said central portion of said support so as to be in abutment at one end of said central portion.
  6. Lock (1) according to claim 5, in which said notched sector (116') further comprises return means comprising two pre-stressed helical compression springs (119 and 120), which are respectively mounted on both sides and bearing against said notched covering (118), so as to allow an over-torque exerted on said notched covering causing by relative sliding a momentary displacement in an arc of a circle of said notched covering relative to said sector support (117) then a return to the initial position when said over-torque is cancelled, one of said pre-stressed springs (120) being compressed and the other (119) relaxed when said unlocking position is obtained.
  7. Lock (1) according to claim 5, in which said notched sector (116") further comprises separable connecting means of the clip (121) and pin (122) type for driving between said notched covering (118) and said sector support (117), said connecting means (121 and 122) being adapted to keep said notched covering moving along an arc of a circle relative to said sector support by relative sliding and to obtain a disengagement of said operating arm (12) relative to said notched sector, in particular during an over-torque exerted on said notched covering, or to obtain the rotation of said operating arm and the translation of said bolt (5) in said unlocking position by said rotation imparted directly to said fixed pivot axis (P) by said emergency key (20).
  8. Lock (1) according to one of the preceding claims, wherein, in said retracted unlocking position, said fixed pivot axis (P) is located substantially equidistant from one end (11a) of said return means (11) mounted against said first wall (3) of said housing (2) and from an axially external end (5b) opposite said bolt (5) flush with said second wall (4) of said housing.
  9. Lock (1) according to one of the preceding claims, wherein said rotation actuator (13) comprises a stepper electric motor (13) coupled to control electronics and optionally further to a reduction group.
EP19170908.8A 2018-04-27 2019-04-24 Device for controlling a member for locking/ unlocking a door leaf on a frame, such as a bolt, and lock comprising same Active EP3569552B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1853742A FR3080639B1 (en) 2018-04-27 2018-04-27 DEVICE FOR CONTROLLING A MEMBER FOR LOCKING/UNLOCKING A LEAF ON A FRAME, SUCH AS A BOLT, AND LOCK INCORPORATING THE SAME

Publications (2)

Publication Number Publication Date
EP3569552A1 EP3569552A1 (en) 2019-11-20
EP3569552B1 true EP3569552B1 (en) 2024-08-21

Family

ID=63036100

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19170908.8A Active EP3569552B1 (en) 2018-04-27 2019-04-24 Device for controlling a member for locking/ unlocking a door leaf on a frame, such as a bolt, and lock comprising same

Country Status (2)

Country Link
EP (1) EP3569552B1 (en)
FR (1) FR3080639B1 (en)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE185968C (en) * 1906-01-25 1907-05-16
US1050648A (en) * 1912-04-12 1913-01-14 Losh O Harbaugh Automatic device for elevators.
US1557857A (en) * 1925-01-03 1925-10-20 Warner Elevator Mfg Company Safety locking apparatus for elevators
DE3836693C2 (en) * 1988-10-28 1996-01-25 Fliether Karl Gmbh & Co Espagnolette lock
FR3048252B1 (en) * 2016-02-25 2020-03-06 Assa Abloy Cote Picarde LOCK ASSEMBLY WITH INDEPENDENT DRIVE LINKS

Also Published As

Publication number Publication date
FR3080639B1 (en) 2022-07-29
FR3080639A1 (en) 2019-11-01
EP3569552A1 (en) 2019-11-20

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