EP2069184A2 - Mechanism for operating switch points - Google Patents

Mechanism for operating switch points

Info

Publication number
EP2069184A2
EP2069184A2 EP07848235A EP07848235A EP2069184A2 EP 2069184 A2 EP2069184 A2 EP 2069184A2 EP 07848235 A EP07848235 A EP 07848235A EP 07848235 A EP07848235 A EP 07848235A EP 2069184 A2 EP2069184 A2 EP 2069184A2
Authority
EP
European Patent Office
Prior art keywords
needle
cam disk
mechanism according
housing
cylinder
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
EP07848235A
Other languages
German (de)
French (fr)
Other versions
EP2069184B1 (en
Inventor
Philippe Mugg
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Vossloh COGIFER SA
Original Assignee
Vossloh COGIFER SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Vossloh COGIFER SA filed Critical Vossloh COGIFER SA
Priority to PL07848235T priority Critical patent/PL2069184T3/en
Publication of EP2069184A2 publication Critical patent/EP2069184A2/en
Application granted granted Critical
Publication of EP2069184B1 publication Critical patent/EP2069184B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
    • B61L5/00—Local operating mechanisms for points or track-mounted scotch-blocks; Visible or audible signals; Local operating mechanisms for visible or audible signals
    • B61L5/02—Mechanical devices for operating points or scotch-blocks, e.g. local manual control
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
    • B61L5/00—Local operating mechanisms for points or track-mounted scotch-blocks; Visible or audible signals; Local operating mechanisms for visible or audible signals
    • B61L5/10—Locking mechanisms for points; Means for indicating the setting of points

Definitions

  • the present invention relates to the field of railway infrastructure, in particular the operation of switches and has for object a mechanism for maneuvering needles.
  • the operation of the needles of a switch is carried out by means of a mechanism comprising a driving motor of a control block actuating the needles in the direction of a displacement to the right or to the left.
  • the existing mechanisms have either a motor of the hydraulic or mechanical cylinder type, or a geared motor-rod-crank, cam or worm and nut, this motor or geared motor unit operating, by via the control block, a control bar constituted by two half-bars and carrying out the translation and the setting of the needles.
  • This translation and the corresponding setting of the needles are controlled by means of two other bars, each assigned to a needle connected thereto, said bars being driven by the needles and stalling them in the service position.
  • control unit also realizes the setting of the needles, thanks to a spring stabilization means, whose operation is carried out according to the principle of a bistable flip-flop, which has the effect of maintaining alternately the needles in the application position against the corresponding counter-needle rail.
  • these mechanisms also include, most often, a manual control for direct action on the control and locking block.
  • the present invention aims to overcome these disadvantages by providing a needle actuating mechanism for simultaneously and independently ensure the maneuver and the setting of the needles.
  • the subject of the invention is a needle-handling mechanism, comprising a cylinder control unit actuating two half-bars for operating the needles, each connected to a needle, by a device for setting the needles and by An order manual connection to the actuator control assembly, characterized in that the two actuating rods of the needles are actuated by the actuator control unit by means of rotary cam actuators each assigned to a half-bar and that the needle setting device is a device independent of the needle half-bars and controlled by the actuator control assembly.
  • FIG. a perspective view of the operating mechanism according to the invention
  • FIG. 2 is a view from above, on a larger scale, of the actuator control assembly, the rotary devices for driving the half-operating bars and the device for setting the needles
  • FIG. 3 is a view in perspective, also on a larger scale, representing the rotating devices for driving the half-bars.
  • FIG. 1 of the attached drawings shows a needle operating mechanism comprising a cylinder actuating assembly 1 actuating two half-bars 2 for operating the needles (not shown), each connected to a needle, by a setting device 3 hands and by a manual control 4 connected to the assembly 1 cylinder control.
  • the actuation of the two half-bars 2 for maneuvering the needles by the cylinder control assembly 1 is carried out by means of rotary cam drive devices 5 each assigned to a half-bar operating device 2 and the device 3 for setting the needles is a device independent of the half-bars 2 for maneuvering the hands and controlled by the control assembly with cylinder 1.
  • Each rotary camming device 5 assigned to a half-maneuvering bar 2 consists of a stack, on a vertical shaft 6, of a first cam disk 7 cooperating with the cylinder control assembly 1 and with the device 3 for setting the needles, for the setting in position of the latter, by a second disc 8 cooperating with the first cam disk 7 and with the device 3 for setting the needles, for the release of the setting in position of said needles, by a spring stabilizing means 9 acting, at one end, on the second cam disk 8 and pivotally mounted in the casing housing 10 of the mechanism, and by a lever 40 for controlling the half-bar 2 for maneuvering the needle, also secured in rotation with the vertical shaft 6.
  • the drive devices 5 are identical and mounted symmetrically to the longitudinal axis of the cylinder control assembly 1, in order to achieve the displacement and setting right or left perfectly. synchronous and needle positioning.
  • the first cam disk 7 is rotatably mounted on the vertical shaft 6 and cooperates, on the one hand, with the cylinder control assembly 1 via a first drive pin 11 engaged in a corresponding drive groove 12 of a slider 13 integral with the cylinder 1 'of the assembly 1 and, secondly, with the second cam disk 8 by means of a second drive pin 14, integral with said first cam disk 7 and engaging in a corresponding curvilinear groove 15 of said second cam disk 8.
  • the first cam disk 7, which is rotated by the slider 13 of the cylinder 1 'of the assembly 1 at the translation displacement of the latter drives each second cam disk 8 in rotation and, as a result, the vertical shaft 6 integral with this second cam disk 8, via the second drive pin 14 engaged in the curvilinear groove 15.
  • the spring stabilizing means 9 is provided at its end acting on the second cam disk 8 with a drive shaft 16 passing through a corresponding bearing of said second cam disk 8, its opposite end being pivotally mounted in a bearing 17. of the casing 10.
  • a spring stabilizing means operates according to the principle of a toggle joint, that is to say that it has two stable end positions of pivoting, in which it maintains the second cam disk 8.
  • lever 40 for controlling the half-bar 2 for maneuvering the needle, which is secured in rotation with the vertical shaft 6, is mounted on the latter by one end and is provided, in the direction of its end opposite, an oblong groove 18 housing a support 19 of a roller 20 adjustable in position.
  • the roller 20 cooperates with an end plate 21 of the half-bar 2 for maneuvering the needle through an oblong guide 22 of said plate 21, extending perpendicularly to the longitudinal axis of the half -barre 2.
  • the lever 40 for controlling the half-bar 2 for maneuvering the needle is driven in the same direction of rotation by said shaft 6 and its roller 20 , housed in the oblong guide 22 of the plate 21, drives the latter in a translational movement along the longitudinal axis of the half-bar 2 having the effect of a corresponding displacement of the latter and thus the needle connected thereto . Due to the possibility of adjusting the position of the roller 20, the stroke of the hand to be maneuvered can be easily adjusted.
  • the device 3 for setting the needles is formed by two independent assemblies each assigned to a needle and each consisting of at least one half-bar 30 connected at one end to the corresponding needle, guided in the housing 10 and provided at its other end.
  • a stop 31, by a shim 32 intended to cooperate, in the application position of the corresponding needle against the rail, with the stop 31 and secured with a slide 33 guided in a support 34 fixed in the housing 10 of housing of the mechanism, this slider 33 cooperating, at one end, with the first and second cam discs 7 and 8, respectively via a roller 35 and a setting shaft 36 coaxial with the roller 35, and at its other end with a complementary locking means 300, a return spring 38 housed in the support 34 applying the slide 33 against said cam discs 7 and 8.
  • the half-bar 30 connected to the corresponding needle is thus moved with the latter, so that its stop 31 moves in the same direction and can be wedged in the application position of the needle against the corresponding rail, as will be described later.
  • the second cam disk 8 is advantageously provided, on its edge facing the stub shaft 36 of the slider 33, with a housing 8 'for locking the coaxial wedging shaft 36 in the locking position of the half-bar 30 by pressing the shim 32 against the corresponding face of the stop 31, when the corresponding needle is applied against the rail.
  • the first cam disk 7 is provided on its edge with two identical cams 7 ', arranged symmetrically with respect to the radius passing through the axis of the second drive pin 14 and intended to cooperate with the roller 35 of the slider 33 for the clearance of the coaxial wedging shaft 36 from the housing 8 ', before a maneuver for stalling or for unlocking the stall.
  • the second pin 14 of the first cam disk 7 is positioned in the curvilinear groove 15 of the second cam disk 8 at one end thereof, such that the beginning of the rotational movement of the first cam disk 7 is effected without driving the second cam disk 8, the second driving pin 14 moving in the curvilinear groove 15.
  • the roller 35 of the slider 33 is stressed, from the beginning of the rotation of the first cam disk 7, by the cam 7 'of the latter and is moved against the action of the return spring 38 of the slide 33.
  • the complementary locking means 300 of the needle setting device 3 consists, for each independent assembly assigned to a needle, in a lever 301 pivotally mounted in the casing 10 of the mechanism and actuated by via a rod 302 pivotally mounted at its opposite end to that in connection with the lever 301 on a sliding member 303 guided in displacement, parallel to the longitudinal axis of the cylinder 1 'of the assembly 1 control with a jack on a guide support 304 secured to the support 34 for guiding the slide 33, and in a means 305 for moving the sliding element 303, integral with the jack 1 of the jack control assembly 1 , the lever 301 being applied in the extreme positions of operation of the needles, by its free end, on the slider 33, at the end opposite to that carrying the roller 35 and the coaxial wedging shaft 36.
  • the complementary locking means of each independent set is formed by elements having identical functions but, for some of them, a different constitution.
  • the lever 301 is articulated in the housing 10 by an axis passing therethrough at a distance from its two ends, the link 302 being articulated on said lever 301 at its end opposite to that intended to actuate the slide 33, while the sliding element 303 is in the form of a simple slide against which rests the drive means 305 integral with the cylinder the control assembly with cylinder 1 for the locking in the operating position of the slide 33, the displacement in the opposite direction of said sliding element 303 being simply effected following the tilting of the lever 301 under the effect of the displacement of the slide 33, when the means 305 is released from its support on said sliding element 303.
  • This embodiment corresponds to that shown in the lower part of FIG. 2 and in the upper part of FIG. 3.
  • the lever 301 is articulated in the housing 10 by an axis passing through it at one end, the link 302 being articulated on said lever 301 at a distance from its two ends, whereas the sliding member 303 is in the form of a slider provided with a curved driver 303 'cooperating formally with the drive means 305 secured to the cylinder 1' of the cylinder control assembly 1 for its displacement to a position unlocking the slider 33 (shown in FIGS. 2 and 3), or to a locking position of said slider 33.
  • the drive means 305 integral with the jack 1 'of the jack control assembly 1 is constituted by two identical rollers mounted on either side of the jack 1', parallel to its longitudinal axis and with an offset between them in the direction of the longitudinal axis (see Figures 1 and 2 of the accompanying drawings). It is clear from FIG. 2 that with regard to the complementary locking means 300, shown in the upper part of FIG. 2, the lever 301 is actuated directly in the same direction as the displacement of the jack 1 and the drive means 305.
  • This complementary locking means 300 makes it possible to obtain additional safety as regards the setting of the needles in the operating position, because it ensures the positioning of the coaxial wedging shaft 36 in the housing 8 ', even in the case where the return spring 38 fitted to the slide 33 is damaged or destroyed, following fatigue or other mechanical incident.
  • the mechanism according to the invention operates as follows:
  • the slider 13 secured to the cylinder drives it by its driving grooves 12 the first drive pin 11 of the first cam disk 7.
  • the cam disk 7 rotates on the vertical shaft 6, its second drive pin 14 moving freely in the curvilinear groove 15 of the second cam disk 8.
  • the cam 7 'of the first cam disk 7 facing the roller 35 of the slide 33 moves said roller 35 against the action of the return spring 38 of the slide 33 in the direction of disengagement of the coaxial wedging shaft 36 from the housing 8 'of the second cam disk 8.
  • the corresponding shim 32 is disengaged from the consecutive path of the stop 31 mounted on the half-bar 30 assigned to the corresponding needle, so that the movement of this half-bar 30 is made possible.
  • the second drive pin 14 of the first cam disk 7 moves in the curvilinear groove 15 of the second cam disk 8, without driving the latter, so that the needles remain fixed.
  • the second drive spindle 14 reaches the end of its free stroke in the curvilinear groove 15, that is to say in abutment with the end of this groove, the second cam disk 8 is driven in rotation and with it the vertical shaft 6, which then rotates the control lever 40 of the half-bar 2 maneuvering the needle and moves the latter to its closed position or to its open position.
  • the spring-stabilizing means 9 When, during this rotation, the spring-stabilizing means 9 exceeds its unstable equilibrium position, it causes a rapid rotational displacement of the second cam disk 8 which, in turn, makes up for the first cam disk 7 due to the cooperation of the second drive pin 14 of said first disk 7 with the curvilinear groove 15 of the second disk 8.
  • This rapid rotation causes the closing of one of the needles by contact with the corresponding counter-needle rail, as well as a corresponding displacement of the corresponding half-bar 30 of the wedging device 3.
  • the second disk 8 is moved into the position of engagement of the coaxial wedging shaft 36 in the housing 8 ', which has the effect that the slider carrying it performs a displacement such that it places the shim 32, which it is provided, behind the stop 31 equipping the corresponding half-bar 30 of the needle applied against the counter-needle rail and prevents thus prevents any movement in the opposite direction of said half-bar.
  • the first cam disk 7 drives the second cam disk 8 until the coaxial blocking shaft 36 is perfectly matched with the bottom of the housing 8 'and the drive means 305 integral with the cylinder 1' of the cylinder control assembly 1 drives the sliding element 303 in the direction of a movement of the lever 301. allowing locking in position of the slider 33, the coaxial wedging shaft 36 is positioned in the housing 8 'of the first cam disk 8.
  • a needle-actuating mechanism in which all the actuating movements of the half-bars of the needle controls are carried out by rotation or by rotation, all the internal movements of the mechanism being , moreover, independent of the running of the needles.
  • the latter is adjusted to the final stage, when they are closer to the needles, which consequently reduces the influence of the internal games, in particular by fatigue, over a long period.
  • the mechanism according to the invention has an almost total construction symmetry allowing the use for the maneuver and the setting of each needle of a maximum of identical parts, which reduces manufacturing costs and facilitates maintenance .
  • access to the mechanism is facilitated and all parts of the latter are perfectly accessible visually to maintenance personnel, no layer of functional elements being inaccessible.

Landscapes

  • Mechanical Engineering (AREA)
  • Engineering & Computer Science (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)
  • Transmission Devices (AREA)
  • Mechanisms For Operating Contacts (AREA)
  • Mechanical Control Devices (AREA)
  • Switches With Compound Operations (AREA)
  • Rotary Switch, Piano Key Switch, And Lever Switch (AREA)
  • Push-Button Switches (AREA)
  • Train Traffic Observation, Control, And Security (AREA)
  • Portable Nailing Machines And Staplers (AREA)
  • Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
  • Surgical Instruments (AREA)

Abstract

The subject of the present invention is a mechanism for operating sets of switch points, comprising an actuator control assembly (1) actuating two points operating half-bars (2), each connected to one point blade (switch rail), by a point-setting device (3) and by a manual control (4) connected in the actuator control assembly (1). The mechanism is one wherein actuation of the two points-operating half bars (2) by the actuator control assembly (1) is performed by way of rotary cam-drive devices (5), each one assigned to one operating half-bar (2) and wherein the points-setting device (3) is a device independent of the points-operating half-bar (2) and controlled by the actuator control assembly (1). The invention applies more particularly to the field of railway (railroad) infrastructure, particularly the operating of switch points.

Description

Mécanisme de manœuvre d'aiguilles Needle maneuvering mechanism
La présente invention concerne le domaine de l'infrastructure ferroviaire, en particulier la manœuvre des aiguillages et a pour objet un mécanisme de manœuvre d'aiguilles.The present invention relates to the field of railway infrastructure, in particular the operation of switches and has for object a mechanism for maneuvering needles.
De manière générale, la manœuvre des aiguilles d'un aiguillage est effectuée par l'intermédiaire d'un mécanisme comportant un moteur d'entraînement d'un bloc de commande actionnant les aiguilles dans le sens d'un déplacement vers la droite ou vers la gauche.In general, the operation of the needles of a switch is carried out by means of a mechanism comprising a driving motor of a control block actuating the needles in the direction of a displacement to the right or to the left.
Actuellement, les mécanismes existants présentent, soit un moteur du type vérin hydraulique ou mécanique, soit un ensemble moto- réducteur à bielle-manivelle, à came ou à vis sans fin et écrou, ce moteur ou l'ensemble moto-réducteur actionnant, par l'intermédiaire du bloc de commande, une barre de commande constituée par deux demi-barres et réalisant la translation et le calage des aiguilles. Cette translation et le calage correspondant des aiguilles sont contrôlés par l'intermédiaire de deux autres barres, affectées chacune à une aiguille reliée à celles-ci, lesdites barres étant entraînées par les aiguilles et calant ces dernières en position de service.Currently, the existing mechanisms have either a motor of the hydraulic or mechanical cylinder type, or a geared motor-rod-crank, cam or worm and nut, this motor or geared motor unit operating, by via the control block, a control bar constituted by two half-bars and carrying out the translation and the setting of the needles. This translation and the corresponding setting of the needles are controlled by means of two other bars, each assigned to a needle connected thereto, said bars being driven by the needles and stalling them in the service position.
Par ailleurs, dans ces mécanismes connus, le bloc de commande réalise également le calage des aiguilles, grâce à un moyen de stabilisation à ressorts, dont le fonctionnement s'effectue suivant le principe d'une bascule bistable, qui a pour effet de maintenir alternativement les aiguilles en position d'application contre le rail contre-aiguille correspondant. Enfin, ces mécanismes comportent également, le plus souvent, une commande manuelle permettant une action directe sur le bloc de commande et de verrouillage.Moreover, in these known mechanisms, the control unit also realizes the setting of the needles, thanks to a spring stabilization means, whose operation is carried out according to the principle of a bistable flip-flop, which has the effect of maintaining alternately the needles in the application position against the corresponding counter-needle rail. Finally, these mechanisms also include, most often, a manual control for direct action on the control and locking block.
Ces mécanismes existants permettent, généralement, d'effectuer une manœuvre correcte et fiable des aiguilles.These existing mechanisms generally make it possible to perform a correct and reliable maneuvering of the needles.
La présente invention a pour but de pallier ces inconvénients en proposant un mécanisme de manœuvre d'aiguilles permettant d'assurer simultanément et indépendamment la manœuvre et le calage des aiguilles.The present invention aims to overcome these disadvantages by providing a needle actuating mechanism for simultaneously and independently ensure the maneuver and the setting of the needles.
A cet effet, l'invention a pour objet un mécanisme de manœuvre d'aiguilles, comportant un ensemble de commande à vérin actionnant deux demi-barres de manœuvre des aiguilles, reliées chacune à une aiguille, par un dispositif de calage des aiguilles et par une commande manuelle reliée à l'ensemble de commande à vérin, caractérisé en ce que ractionnement des deux demi-barres de manœuvre des aiguilles par l'ensemble de commande à vérin est effectué par l'intermédiaire de dispositifs rotatifs d'entraînement à came affectés chacun à une demi-barre de manœuvre et en ce que le dispositif de calage des aiguilles est un dispositif indépendant des demi-barres de manœuvre des aiguilles et commandé par l'ensemble de commande à vérin.For this purpose, the subject of the invention is a needle-handling mechanism, comprising a cylinder control unit actuating two half-bars for operating the needles, each connected to a needle, by a device for setting the needles and by An order manual connection to the actuator control assembly, characterized in that the two actuating rods of the needles are actuated by the actuator control unit by means of rotary cam actuators each assigned to a half-bar and that the needle setting device is a device independent of the needle half-bars and controlled by the actuator control assembly.
L'invention sera mieux comprise, grâce à la description ci- après, qui se rapporte à un mode de réalisation préféré, donné à titre d'exemple non limitatif, et expliqué avec référence aux dessins schématiques annexés, dans lesquels : la figure 1 est une vue en perspective du mécanisme de manœuvre conforme à l'invention ; la figure 2 est une vue de dessus, à plus grande échelle, de l'ensemble de commande à vérin, des dispositifs rotatifs d'entraînement des demi-barres de manœuvre et du dispositif de calage des aiguilles, et la figure 3 est une vue en perspective, également à plus grande échelle, représentant les dispositifs rotatifs d'entraînement des demi-barres de manœuvre. La figure 1 des dessins annexés représente un mécanisme de manœuvre d'aiguilles, comportant un ensemble 1 de commande à vérin actionnant deux demi-barres 2 de manœuvre des aiguilles (non représentées), reliées chacune à une aiguille, par un dispositif 3 de calage des aiguilles et par une commande manuelle 4 reliée à l'ensemble 1 de commande à vérin.The invention will be better understood, thanks to the following description, which relates to a preferred embodiment, given by way of non-limiting example, and explained with reference to the attached schematic drawings, in which: FIG. a perspective view of the operating mechanism according to the invention; FIG. 2 is a view from above, on a larger scale, of the actuator control assembly, the rotary devices for driving the half-operating bars and the device for setting the needles, and FIG. 3 is a view in perspective, also on a larger scale, representing the rotating devices for driving the half-bars. FIG. 1 of the attached drawings shows a needle operating mechanism comprising a cylinder actuating assembly 1 actuating two half-bars 2 for operating the needles (not shown), each connected to a needle, by a setting device 3 hands and by a manual control 4 connected to the assembly 1 cylinder control.
Conformément à l'invention, l'actionnement des deux demi- barres 2 de manœuvre des aiguilles par l'ensemble 1 de commande à vérin est effectué par l'intermédiaire de dispositifs rotatifs d'entraînement à came 5 affectés chacun à une demi-barre de manœuvre 2 et le dispositif 3 de calage des aiguilles est un dispositif indépendant des demi-barres 2 de manœuvre des aiguilles et commandé par l'ensemble de commande à vérin 1.According to the invention, the actuation of the two half-bars 2 for maneuvering the needles by the cylinder control assembly 1 is carried out by means of rotary cam drive devices 5 each assigned to a half-bar operating device 2 and the device 3 for setting the needles is a device independent of the half-bars 2 for maneuvering the hands and controlled by the control assembly with cylinder 1.
Chaque dispositif rotatif d'entraînement à came 5 affecté à une demi-barre de manœuvre 2 est constitué par un empilement, sur un arbre vertical 6, d'un premier disque à came 7 coopérant avec l'ensemble 1 de commande à vérin et avec le dispositif 3 de calage des aiguilles, pour le calage en position de ces dernières, par un deuxième disque à came 8 coopérant avec le premier disque à came 7 et avec le dispositif 3 de calage des aiguilles, pour la libération du calage en position desdites aiguilles, par un moyen de stabilisation à ressort 9 agissant, par une extrémité, sur le deuxième disque à came 8 et monté à pivotement dans le carter 10 de logement du mécanisme, et par un levier 40 de commande de la demi-barre 2 de manœuvre de l'aiguille, également solidarisé en rotation avec l'arbre vertical 6.Each rotary camming device 5 assigned to a half-maneuvering bar 2 consists of a stack, on a vertical shaft 6, of a first cam disk 7 cooperating with the cylinder control assembly 1 and with the device 3 for setting the needles, for the setting in position of the latter, by a second disc 8 cooperating with the first cam disk 7 and with the device 3 for setting the needles, for the release of the setting in position of said needles, by a spring stabilizing means 9 acting, at one end, on the second cam disk 8 and pivotally mounted in the casing housing 10 of the mechanism, and by a lever 40 for controlling the half-bar 2 for maneuvering the needle, also secured in rotation with the vertical shaft 6.
Comme il ressort des dessins annexés, les dispositifs d'entraînement 5 sont identiques et montés symétriquement à l'axe longitudinal de l'ensemble 1 de commande à vérin, afin de réaliser les déplacement et calage vers la droite ou vers la gauche de manière parfaitement synchrone et le positionnement des aiguilles.As is apparent from the accompanying drawings, the drive devices 5 are identical and mounted symmetrically to the longitudinal axis of the cylinder control assembly 1, in order to achieve the displacement and setting right or left perfectly. synchronous and needle positioning.
Le premier disque à came 7 est monté libre en rotation sur l'arbre vertical 6 et coopère, d'une part, avec l'ensemble 1 de commande à vérin par l'intermédiaire d'une première broche d'entraînement 11 engagée dans une rainure d'entraînement 12 correspondante d'un coulisseau 13 solidaire du vérin l' de l'ensemble 1 et, d'autre part, avec le deuxième disque à came 8 au moyen d'une deuxième broche d'entraînement 14, solidaire dudit premier disque à came 7 et s'engageant dans une rainure curviligne correspondante 15 dudit deuxième disque à came 8. Ainsi, le premier disque à came 7, qui est mis en rotation par le coulisseau 13 du vérin l' de l'ensemble 1 lors du déplacement en translation de ce dernier, entraîne chaque deuxième disque à came 8 en rotation et, de ce fait l'arbre vertical 6 solidaire de ce deuxième disque à came 8, par l'intermédiaire de la deuxième broche d'entraînement 14 engagée dans la rainure curviligne 15.The first cam disk 7 is rotatably mounted on the vertical shaft 6 and cooperates, on the one hand, with the cylinder control assembly 1 via a first drive pin 11 engaged in a corresponding drive groove 12 of a slider 13 integral with the cylinder 1 'of the assembly 1 and, secondly, with the second cam disk 8 by means of a second drive pin 14, integral with said first cam disk 7 and engaging in a corresponding curvilinear groove 15 of said second cam disk 8. Thus, the first cam disk 7, which is rotated by the slider 13 of the cylinder 1 'of the assembly 1 at the translation displacement of the latter, drives each second cam disk 8 in rotation and, as a result, the vertical shaft 6 integral with this second cam disk 8, via the second drive pin 14 engaged in the curvilinear groove 15.
Le moyen de stabilisation à ressort 9 est muni à son extrémité agissant sur le deuxième disque à came 8 d'un axe d'entraînement 16 traversant un palier correspondant dudit deuxième disque à came 8, son extrémité opposée étant montée à pivotement dans un palier 17 du carter 10. Un tel moyen de stabilisation à ressort fonctionne suivant le principe d'une genouillère, c'est-à-dire qu'il présente deux positions extrêmes de pivotement stables, dans lesquelles il maintient le deuxième disque à came 8. Le levier 40 de commande de la demi-barre 2 de manœuvre de l'aiguille, qui est solidarisé en rotation avec l'arbre vertical 6, est monté sur ce dernier par une extrémité et est pourvu, en direction de son extrémité opposée, d'une rainure oblongue 18 de logement d'un support 19 d'un galet 20 réglable en position. Le galet 20 coopère avec une platine d'extrémité 21 de la demi-barre 2 de manœuvre de l'aiguille par l'intermédiaire d'un guidage oblong 22 de ladite platine 21, s'étendant perpendiculairement à l'axe longitudinal de la demi-barre 2. Ainsi, lors de la rotation de l'arbre vertical 6, le levier 40 de commande de la demi-barre 2 de manœuvre de l'aiguille est entraîné dans le même sens de rotation par ledit arbre 6 et son galet 20, logé dans le guidage oblong 22 de la platine 21, entraîne cette dernière dans un mouvement de translation suivant l'axe longitudinal de la demi-barre 2 ayant pour effet un déplacement correspondant de cette dernière et donc de l'aiguille qui y est raccordée. Du fait de la possibilité de réglage en position du galet 20, la course de l'aiguille à manoeuvrer peut être facilement réglée.The spring stabilizing means 9 is provided at its end acting on the second cam disk 8 with a drive shaft 16 passing through a corresponding bearing of said second cam disk 8, its opposite end being pivotally mounted in a bearing 17. of the casing 10. Such a spring stabilizing means operates according to the principle of a toggle joint, that is to say that it has two stable end positions of pivoting, in which it maintains the second cam disk 8. lever 40 for controlling the half-bar 2 for maneuvering the needle, which is secured in rotation with the vertical shaft 6, is mounted on the latter by one end and is provided, in the direction of its end opposite, an oblong groove 18 housing a support 19 of a roller 20 adjustable in position. The roller 20 cooperates with an end plate 21 of the half-bar 2 for maneuvering the needle through an oblong guide 22 of said plate 21, extending perpendicularly to the longitudinal axis of the half -barre 2. Thus, during the rotation of the vertical shaft 6, the lever 40 for controlling the half-bar 2 for maneuvering the needle is driven in the same direction of rotation by said shaft 6 and its roller 20 , housed in the oblong guide 22 of the plate 21, drives the latter in a translational movement along the longitudinal axis of the half-bar 2 having the effect of a corresponding displacement of the latter and thus the needle connected thereto . Due to the possibility of adjusting the position of the roller 20, the stroke of the hand to be maneuvered can be easily adjusted.
Le dispositif 3 de calage des aiguilles est formé par deux ensembles indépendants affectés chacun à une aiguille et constitué chacun par au moins une demi-barre 30 reliée par une extrémité à l'aiguille correspondante, guidée dans le carter 10 et pourvue à son autre extrémité d'une butée 31, par une cale 32, destinée à coopérer, en position d'application de l'aiguille correspondante contre le rail, avec la butée 31 et solidarisée avec un coulisseau 33 guidé dans un support 34 fixé dans le carter 10 de logement du mécanisme, ce coulisseau 33 coopérant, à une extrémité, avec les premier et deuxième disques à came 7 et 8, par l'intermédiaire, respectivement d'un galet 35 et d'un arbre de calage 36 coaxial au galet 35, et à son autre extrémité avec un moyen de verrouillage complémentaire 300, un ressort de rappel 38 logé dans le support 34 appliquant le coulisseau 33 contre lesdits disques à came 7 et 8. La demi- barre 30 reliée à l'aiguille correspondante est donc déplacée avec cette dernière, de sorte que sa butée 31 se déplace dans le même sens et peut être calée, en position d'application de l'aiguille contre le rail correspondant, comme il sera décrit plus loin.The device 3 for setting the needles is formed by two independent assemblies each assigned to a needle and each consisting of at least one half-bar 30 connected at one end to the corresponding needle, guided in the housing 10 and provided at its other end. a stop 31, by a shim 32, intended to cooperate, in the application position of the corresponding needle against the rail, with the stop 31 and secured with a slide 33 guided in a support 34 fixed in the housing 10 of housing of the mechanism, this slider 33 cooperating, at one end, with the first and second cam discs 7 and 8, respectively via a roller 35 and a setting shaft 36 coaxial with the roller 35, and at its other end with a complementary locking means 300, a return spring 38 housed in the support 34 applying the slide 33 against said cam discs 7 and 8. The half-bar 30 connected to the corresponding needle is thus moved with the latter, so that its stop 31 moves in the same direction and can be wedged in the application position of the needle against the corresponding rail, as will be described later.
Selon une autre caractéristique de l'invention, le deuxième disque à came 8 est avantageusement pourvu, sur sa tranche tournée vers l'arbre de calage 36 du coulisseau 33, d'un logement 8' de verrouillage de l'arbre de calage coaxial 36 dans la position de blocage de la demi-barre 30 par appui de la cale 32 contre la face correspondante de la butée 31, lorsque l'aiguille correspondante est appliquée contre le rail. Par ailleurs, le premier disque à came 7 est pourvu sur sa tranche de deux cames identiques 7', disposées symétriquement par rapport au rayon passant par l'axe de la deuxième broche d'entraînement 14 et destinées à coopérer avec le galet 35 du coulisseau 33 pour le dégagement de l'arbre de calage coaxial 36 hors du logement 8', avant une manœuvre de calage ou pour un déverrouillage de calage.According to another characteristic of the invention, the second cam disk 8 is advantageously provided, on its edge facing the stub shaft 36 of the slider 33, with a housing 8 'for locking the coaxial wedging shaft 36 in the locking position of the half-bar 30 by pressing the shim 32 against the corresponding face of the stop 31, when the corresponding needle is applied against the rail. Moreover, the first cam disk 7 is provided on its edge with two identical cams 7 ', arranged symmetrically with respect to the radius passing through the axis of the second drive pin 14 and intended to cooperate with the roller 35 of the slider 33 for the clearance of the coaxial wedging shaft 36 from the housing 8 ', before a maneuver for stalling or for unlocking the stall.
Conformément à une autre caractéristique de l'invention, dans la position extrême de service correspondant à un calage en position de l'aiguille, par appui de la butée 31 de la demi-barre 30 contre la cale 32 du coulisseau 33, la deuxième broche d'entraînement 14 du premier disque à came 7 est positionnée dans la rainure curviligne 15 du deuxième disque à came 8 à une extrémité de cette dernière, de telle manière que le début du mouvement de rotation du premier disque à came 7 s'effectue sans entraînement du deuxième disque à came 8, la deuxième broche d'entraînement 14 se déplaçant dans la rainure curviligne 15. Ainsi, lors d'un déplacement du coulisseau 13 du vérin l' de l'ensemble 1, le galet 35 du coulisseau 33 est sollicité, dès le début de la rotation du premier disque à came 7, par la came 7' de ce dernier et est déplacé contre l'action du ressort de rappel 38 du coulisseau 33. Du fait que l'arbre de calage coaxial 36 affecté au deuxième disque à came 8 est axialement aligné avec le galet 35, et donc solidaire en translation de ce dernier, ce déplacement initial a pour effet d'extraire ledit arbre de calage coaxial 36 hors du logement 8' du deuxième disque à came 8, pendant la seule rotation du premier disque à came 7, lors de laquelle la deuxième branche d'entraînement 14 se déplace dans la ramure curviligne 15. Lorsque cette broche 14 arrive à l'extrémité opposée de la rainure curviligne 15, le deuxième disque à came 8 est entraîné en rotation et le moyen de stabilisation à ressort 9 est sollicité simultanément par ledit deuxième disque à came 8.According to another characteristic of the invention, in the extreme service position corresponding to a setting in position of the needle, by pressing the stop 31 of the half-bar 30 against the shim 32 of the slide 33, the second pin 14 of the first cam disk 7 is positioned in the curvilinear groove 15 of the second cam disk 8 at one end thereof, such that the beginning of the rotational movement of the first cam disk 7 is effected without driving the second cam disk 8, the second driving pin 14 moving in the curvilinear groove 15. Thus, during a displacement of the slider 13 of the jack 1 of the assembly 1, the roller 35 of the slider 33 is stressed, from the beginning of the rotation of the first cam disk 7, by the cam 7 'of the latter and is moved against the action of the return spring 38 of the slide 33. Because the coaxial timing shaft 36 affected at the second disqu 8 is axially aligned with the roller 35, and thus integral in translation thereof, this initial displacement has the effect of extracting said coaxial wedging shaft 36 out of the housing 8 'of the second cam disk 8, during the only one rotation of the first cam disk 7, during which the second drive branch 14 moves in the curvilinear groove 15. When this pin 14 arrives at the opposite end of the curvilinear groove 15, the second cam disk 8 is rotated and the spring stabilizing means 9 is biased simultaneously by said second cam disk 8.
Le ressort constituant le moyen 9 est alors tout d'abord comprimé pendant un déplacement initial lors duquel il pivote dans le palier 17 du carter 10, jusqu'à atteindre le point d'équilibre instable, à partir duquel il pivote en direction opposée en entraînant le deuxième disque à came 8. Suite à ce dernier pivotement, le deuxième disque à came 8 tourne plus vite que le premier disque à came 7, son entraînement n'étant plus effectué par la deuxième broche d'entraînement 14 du premier disque à came 7, ce sous l'effet du ressort du moyen 9, et la deuxième broche d'entraînement 14 circule sans contrainte dans la rainure curviligne 15, alors que le deuxième disque à came 8 est basculé dans une position d'enclenchement de l'arbre de calage coaxial 36 dans le logement 8' (dispositif de calage 3 de la partie inférieure de la figure 2). Ces positions apparaissent notamment dans la figure 2 des dessins annexés mais également dans la figure 3, dans laquelle la disposition du dispositif de calage 3 et du moyen de stabilisation à ressort 9 est simplement représentée inversée par rapport à celle de la figure 2.The spring constituting the means 9 is then compressed during an initial displacement during which it pivots in the bearing 17 of the housing 10, until reaching the unstable equilibrium point, from which it pivots in the opposite direction, causing the second cam disk 8. Following this last pivoting, the second cam disk 8 rotates faster than the first cam disk 7, its drive being no longer performed by the second drive pin 14 of the first cam disk 7, this under the effect of the spring of the means 9, and the second drive pin 14 flows freely in the curvilinear groove 15, while the second Cam disk 8 is tilted into an engagement position of the coaxial wedging shaft 36 in the housing 8 '(wedging device 3 of the lower part of Figure 2). These positions appear in particular in Figure 2 of the accompanying drawings but also in Figure 3, wherein the arrangement of the wedging device 3 and the spring stabilizing means 9 is simply shown inverted with respect to that of Figure 2.
Conformément à une autre caractéristique de l'invention, le moyen de verrouillage complémentaire 300 du dispositif 3 de calage des aiguilles consiste, pour chaque ensemble indépendant affecté à une aiguille, en un levier 301 monté à pivotement dans le carter 10 du mécanisme et actionné par l'intermédiaire d'une biellette 302 montée à pivotement, par son extrémité opposée à celle en liaison avec le levier 301 sur un élément coulissant 303 guidé en déplacement, parallèlement à l'axe longitudinal du vérin l' de l'ensemble 1 de commande à vérin sur un support de guidage 304 solidarisé avec le support 34 de guidage du coulisseau 33, et en un moyen 305 d'entraînement en déplacement de l'élément coulissant 303, solidaire du vérin l' de l'ensemble de commande à vérin 1, le levier 301 étant appliqué dans les positions extrêmes de manœuvre des aiguilles, par son extrémité libre, sur le coulisseau 33, à l'extrémité opposée à celle portant le galet 35 et l'arbre de calage coaxial 36.According to another characteristic of the invention, the complementary locking means 300 of the needle setting device 3 consists, for each independent assembly assigned to a needle, in a lever 301 pivotally mounted in the casing 10 of the mechanism and actuated by via a rod 302 pivotally mounted at its opposite end to that in connection with the lever 301 on a sliding member 303 guided in displacement, parallel to the longitudinal axis of the cylinder 1 'of the assembly 1 control with a jack on a guide support 304 secured to the support 34 for guiding the slide 33, and in a means 305 for moving the sliding element 303, integral with the jack 1 of the jack control assembly 1 , the lever 301 being applied in the extreme positions of operation of the needles, by its free end, on the slider 33, at the end opposite to that carrying the roller 35 and the coaxial wedging shaft 36.
Comme il apparaît sur les figures 2 et 3 des dessins annexés, le moyen de verrouillage complémentaire de chaque ensemble indépendant est formé par des éléments ayant des fonctions identiques mais, pour certains d'entre eux, une constitution différente. Ainsi, selon une caractéristique de l'invention, pour l'un des ensembles du moyen de verrouillage complémentaire 300, le levier 301 est articulé dans le carter 10 par un axe le traversant à distance de ses deux extrémités, la biellette 302 étant articulée sur ledit levier 301 à son extrémité opposée à celle destinée à actionner le coulisseau 33, alors que l'élément coulissant 303 se présente sous la forme d'un simple coulisseau contre lequel s'appuie le moyen d'entraînement 305 solidaire du vérin l' de l'ensemble de commande à vérin 1 pour le verrouillage en position de service du coulisseau 33, le déplacement en sens inverse dudit élément coulissant 303 étant simplement effectué suite au basculement du levier 301 sous l'effet du déplacement du coulisseau 33, lorsque le moyen d'entraînement 305 est dégagé de son appui sur ledit élément coulissant 303. Ce mode de réalisation correspond à celui représenté à la partie inférieure de la figure 2 et à la partie supérieure de la figure 3.As it appears in Figures 2 and 3 of the accompanying drawings, the complementary locking means of each independent set is formed by elements having identical functions but, for some of them, a different constitution. Thus, according to a feature of the invention, for one of the sets of the complementary locking means 300, the lever 301 is articulated in the housing 10 by an axis passing therethrough at a distance from its two ends, the link 302 being articulated on said lever 301 at its end opposite to that intended to actuate the slide 33, while the sliding element 303 is in the form of a simple slide against which rests the drive means 305 integral with the cylinder the control assembly with cylinder 1 for the locking in the operating position of the slide 33, the displacement in the opposite direction of said sliding element 303 being simply effected following the tilting of the lever 301 under the effect of the displacement of the slide 33, when the means 305 is released from its support on said sliding element 303. This embodiment corresponds to that shown in the lower part of FIG. 2 and in the upper part of FIG. 3.
Pour l'autre ensemble du moyen de verrouillage complémentaire 300, le levier 301 est articulé dans le carter 10 par un axe le traversant à une extrémité, la biellette 302 étant articulée sur ledit levier 301 à distance de ses deux extrémités, alors que l'élément coulissant 303 se présente sous la forme d'un coulisseau muni d'un entraîneur incurvé 303' coopérant par forme avec le moyen d'entraînement 305 solidaire du vérin l' de l'ensemble de commande à vérin 1 pour son déplacement vers une position de déverrouillage du coulisseau 33 (représentée aux figures 2 et 3), ou vers une position de verrouillage dudit coulisseau 33.For the other set of complementary locking means 300, the lever 301 is articulated in the housing 10 by an axis passing through it at one end, the link 302 being articulated on said lever 301 at a distance from its two ends, whereas the sliding member 303 is in the form of a slider provided with a curved driver 303 'cooperating formally with the drive means 305 secured to the cylinder 1' of the cylinder control assembly 1 for its displacement to a position unlocking the slider 33 (shown in FIGS. 2 and 3), or to a locking position of said slider 33.
De préférence, le moyen d'entraînement 305 solidaire du vérin 1' de l'ensemble de commande à vérin 1 est constitué par deux galets identiques montés de part et d'autre du vérin l', parallèlement à son axe longitudinal et avec un décalage entre eux dans le sens de l'axe longitudinal (voir figures 1 et 2 des dessins annexés). Il apparaît clairement, en prenant en considération la figure 2, que pour ce qui concerne le moyen de verrouillage complémentaire 300, représentée dans la partie supérieure de la figure 2, l'actionnement du levier 301 s'effectue directement dans le même sens que le déplacement du vérin l' et du moyen d'entraînement 305.Preferably, the drive means 305 integral with the jack 1 'of the jack control assembly 1 is constituted by two identical rollers mounted on either side of the jack 1', parallel to its longitudinal axis and with an offset between them in the direction of the longitudinal axis (see Figures 1 and 2 of the accompanying drawings). It is clear from FIG. 2 that with regard to the complementary locking means 300, shown in the upper part of FIG. 2, the lever 301 is actuated directly in the same direction as the displacement of the jack 1 and the drive means 305.
Ce moyen de verrouillage complémentaire 300 permet d'obtenir une sécurité complémentaire en ce qui concerne le calage des aiguilles en position de service, du fait qu'il assure le positionnement de l'arbre de calage coaxial 36 dans le logement 8', même dans le cas où le ressort de rappel 38 équipant le coulisseau 33 est détérioré, voire détruit, suite à la fatigue ou à un autre incident mécanique.This complementary locking means 300 makes it possible to obtain additional safety as regards the setting of the needles in the operating position, because it ensures the positioning of the coaxial wedging shaft 36 in the housing 8 ', even in the case where the return spring 38 fitted to the slide 33 is damaged or destroyed, following fatigue or other mechanical incident.
Le mécanisme conforme à l'invention fonctionne de la manière suivante :The mechanism according to the invention operates as follows:
Lors d'un actionnement du vérin l' de l'ensemble de commande à vérin 1, le coulisseau 13 solidaire du vérin l' entraîne par ses rainures d'entraînement 12 la première broche d'entraînement 11 du premier disque à came 7. Dans un premier temps, seul le disque à came 7 tourne sur l'arbre vertical 6, sa deuxième broche d'entraînement 14 se déplaçant librement dans la rainure curviligne 15 du deuxième disque à came 8. Pendant ce déplacement initial, comme déjà expliqué plus haut, la came 7' du premier disque à came 7, se trouvant en face du galet 35 du coulisseau 33 déplace cedit galet 35 contre l'action du ressort de rappel 38 du coulisseau 33 dans le sens d'un dégagement de l'arbre de calage coaxial 36 hors du logement 8' du deuxième disque à came 8.When actuating the jack 1 of the cylinder control assembly 1, the slider 13 secured to the cylinder drives it by its driving grooves 12 the first drive pin 11 of the first cam disk 7. In firstly, only the cam disk 7 rotates on the vertical shaft 6, its second drive pin 14 moving freely in the curvilinear groove 15 of the second cam disk 8. During this initial displacement, as already explained above the cam 7 'of the first cam disk 7, facing the roller 35 of the slide 33 moves said roller 35 against the action of the return spring 38 of the slide 33 in the direction of disengagement of the coaxial wedging shaft 36 from the housing 8 'of the second cam disk 8.
Par ce déplacement du coulisseau 33, la cale correspondante 32 est dégagée hors du parcours consécutif de la butée 31 montée sur la demi- barre 30 affectée à l'aiguille correspondante, de sorte que le déplacement de cette demi-barre 30 est rendu possible. Pendant cette phase initiale, la deuxième broche d'entraînement 14 du premier disque à came 7 se déplace dans la rainure curviligne 15 du deuxième disque à came 8, sans entraîner ce dernier, de sorte que les aiguilles restent fixes. Lorsque la deuxième broche d'entraînement 14 arrive en fin de course libre dans la rainure curviligne 15, c'est-à-dire entre en butée avec l'extrémité de cette rainure, le deuxième disque à came 8 est entraîné en rotation et avec lui l'arbre vertical 6, qui entraîne alors en rotation le levier 40 de commande de la demi-barre 2 de manœuvre de l'aiguille et déplace cette dernière vers sa position fermée ou vers sa position ouverte.By this displacement of the slide 33, the corresponding shim 32 is disengaged from the consecutive path of the stop 31 mounted on the half-bar 30 assigned to the corresponding needle, so that the movement of this half-bar 30 is made possible. During this initial phase, the second drive pin 14 of the first cam disk 7 moves in the curvilinear groove 15 of the second cam disk 8, without driving the latter, so that the needles remain fixed. When the second drive spindle 14 reaches the end of its free stroke in the curvilinear groove 15, that is to say in abutment with the end of this groove, the second cam disk 8 is driven in rotation and with it the vertical shaft 6, which then rotates the control lever 40 of the half-bar 2 maneuvering the needle and moves the latter to its closed position or to its open position.
Quand, pendant cette rotation, le moyen de stabilisation à ressort 9 dépasse sa position d'équilibre instable, il provoque un déplacement en rotation rapide du deuxième disque à came 8 qui, ainsi, rattrape en rotation le premier disque à came 7 du fait de la coopération de la deuxième broche d'entraînement 14 dudit premier disque 7 avec la rainure curviligne 15 du deuxième disque 8. Cette rotation rapide entraîne la fermeture de l'une des aiguilles par contact avec le rail contre-aiguille correspondant, ainsi qu'un déplacement correspondant de la demi-barre 30 correspondante du dispositif de calage 3. En outre, le deuxième disque 8 est déplacé dans la position d'engagement de l'arbre de calage coaxial 36 dans le logement 8', ce qui a pour effet que le coulisseau le portant effectue un déplacement tel qu'il place la cale 32, dont il est muni, derrière la butée 31 équipant la demi-barre 30 correspondante de l'aiguille appliquée contre le rail contre-aiguille et empêche ainsi tout déplacement en sens inverse de ladite demi-barre.When, during this rotation, the spring-stabilizing means 9 exceeds its unstable equilibrium position, it causes a rapid rotational displacement of the second cam disk 8 which, in turn, makes up for the first cam disk 7 due to the cooperation of the second drive pin 14 of said first disk 7 with the curvilinear groove 15 of the second disk 8. This rapid rotation causes the closing of one of the needles by contact with the corresponding counter-needle rail, as well as a corresponding displacement of the corresponding half-bar 30 of the wedging device 3. In addition, the second disk 8 is moved into the position of engagement of the coaxial wedging shaft 36 in the housing 8 ', which has the effect that the slider carrying it performs a displacement such that it places the shim 32, which it is provided, behind the stop 31 equipping the corresponding half-bar 30 of the needle applied against the counter-needle rail and prevents thus prevents any movement in the opposite direction of said half-bar.
Pendant le déplacement final consécutif du vérin l' de l'ensemble de commande à vérin 1, le premier disque à came 7 entraîne le deuxième disque à came 8 jusqu'à correspondance parfaite de l'arbre de calage coaxial 36 avec le fond du logement 8' et le moyen d'entraînement 305 solidaire du vérin l' de l'ensemble de commande à vérin 1 entraîne l'élément coulissant 303, dans le sens d'un déplacement du levier 301 permettant le blocage en position du coulisseau 33, dont l'arbre de calage coaxial 36 est positionné dans le logement 8' du premier disque à came 8.During the consecutive final displacement of the jack 1 of the jack control assembly 1, the first cam disk 7 drives the second cam disk 8 until the coaxial blocking shaft 36 is perfectly matched with the bottom of the housing 8 'and the drive means 305 integral with the cylinder 1' of the cylinder control assembly 1 drives the sliding element 303 in the direction of a movement of the lever 301. allowing locking in position of the slider 33, the coaxial wedging shaft 36 is positioned in the housing 8 'of the first cam disk 8.
Grâce à l'invention, il est possible de réaliser un mécanisme de manœuvre d'aiguilles, dans lequel tous les déplacements d'actionnement des demi-barres de commandes des aiguilles sont effectués par rotation ou par roulement, tous les mouvements internes du mécanismes étant, par ailleurs, indépendants de la course des aiguilles. Cette dernière est réglée au stade final, lorsqu'elles sont au plus près des aiguilles, ce qui réduit en conséquence l'influence des jeux internes, en particulier par fatigue, sur une longue durée.Thanks to the invention, it is possible to provide a needle-actuating mechanism, in which all the actuating movements of the half-bars of the needle controls are carried out by rotation or by rotation, all the internal movements of the mechanism being , moreover, independent of the running of the needles. The latter is adjusted to the final stage, when they are closer to the needles, which consequently reduces the influence of the internal games, in particular by fatigue, over a long period.
En outre, le mécanisme conforme à l'invention présente une symétrie de construction quasi-totale permettant l'utilisation pour la manœuvre et le calage de chaque aiguille d'un maximum de pièces identiques, ce qui réduit les coûts de fabrication et facilite la maintenance. De plus, en ce qui concerne cette dernière, l'accès au mécanisme est facilité et toutes les parties constitutives de ce dernier sont parfaitement accessibles visuellement au personnel de maintenance, aucune couche d'éléments fonctionnels n'étant inaccessible.In addition, the mechanism according to the invention has an almost total construction symmetry allowing the use for the maneuver and the setting of each needle of a maximum of identical parts, which reduces manufacturing costs and facilitates maintenance . In addition, with respect to the latter, access to the mechanism is facilitated and all parts of the latter are perfectly accessible visually to maintenance personnel, no layer of functional elements being inaccessible.
Bien entendu, l'invention n'est pas limitée au mode de réalisation décrit et représenté aux dessins annexés. Des modifications restent possibles, notamment du point de vue de la constitution des divers éléments ou par substitution d'équivalents techniques, sans sortir pour autant du domaine de protection de l'invention. Of course, the invention is not limited to the embodiment described and shown in the accompanying drawings. Modifications are possible, particularly from the point of view of the constitution of the various elements or by substitution of technical equivalents, without departing from the scope of protection of the invention.

Claims

REVENDICATIONS
1. Mécanisme de manœuvre d'aiguilles, comportant un ensemble (1) de commande à vérin actionnant deux demi-barres (2) de manœuvre des aiguilles, reliées chacune à une aiguille, par un dispositif (3) de calage des aiguilles et par une commande manuelle (4) reliée à l'ensemble (1) de commande à vérin, caractérisé en ce que l'actionnement des deux demi-barres (2) de manœuvre des aiguilles par l'ensemble (1) de commande à vérin est effectué par l'intermédiaire de dispositifs rotatifs d'entraînement à came (5) affectés chacun à une demi-barre de manœuvre (2) et en ce que le dispositif (3) de calage des aiguilles est un dispositif indépendant des demi-barres (2) de manœuvre des aiguilles et commandé par l'ensemble de commande à vérin (1).1. Needle maneuvering mechanism, comprising a cylinder control assembly (1) actuating two needle half-bars (2), each connected to a needle, by a device (3) for setting the needles and by a manual control (4) connected to the cylinder control assembly (1), characterized in that the actuation of the two half-bars (2) for maneuvering the hands by the cylinder control assembly (1) is performed by means of rotary cam drive devices (5) each assigned to a half-bar (2) and in that the needle-setting device (3) is a device independent of the half-bars ( 2) to operate the needles and controlled by the cylinder control assembly (1).
2. Mécanisme, suivant la revendication 1, caractérisé en ce que chaque dispositif rotatif d'entraînement à came (5) affecté à une demi-barre de manœuvre (2) est constitué par un empilement, sur un arbre vertical (6), d'un premier disque à came (7) coopérant avec l'ensemble (1) de commande à vérin et avec le dispositif (3) de calage des aiguilles, pour le calage en position de ces dernières, par un deuxième disque à came (8) coopérant avec le premier disque à came (7) et avec le dispositif (3) de calage des aiguilles, pour la libération du calage en position desdites aiguilles, par un moyen de stabilisation à ressort (9) agissant, par une extrémité, sur le deuxième disque à came (8) et monté à pivotement dans le carter (10) de logement du mécanisme, et par un levier (40) de commande de la demi- barre (2) de manœuvre de l'aiguille, également solidarisé en rotation avec l'arbre vertical (6). 2. Mechanism according to claim 1, characterized in that each rotary camming device (5) assigned to a half-bar (2) is constituted by a stack on a vertical shaft (6), a first cam disk (7) cooperating with the cylinder control assembly (1) and with the needle setting device (3), for the setting in position of the latter, by a second cam disk (8); ) cooperating with the first cam disk (7) and with the needle setting device (3) for releasing the setting in position of said needles by a spring stabilizing means (9) acting at one end on the second cam disk (8) and pivotally mounted in the housing housing (10) of the mechanism, and by a lever (40) for controlling the half-bar (2) of maneuvering the needle, also secured in rotation with the vertical shaft (6).
3. Mécanisme, suivant l'une quelconque des revendications 1 et3. Mechanism according to any one of claims 1 and
2, caractérisé en ce que les dispositifs d'entraînement (5) sont identiques et montés symétriquement à l'axe longitudinal de l'ensemble (1) de commande à vérin.2, characterized in that the drive devices (5) are identical and mounted symmetrically to the longitudinal axis of the cylinder control assembly (1).
4. Mécanisme, suivant la revendication 2, caractérisé en ce que le premier disque à came (7) est monté libre en rotation sur l'arbre vertical (6) et coopère, d'une part, avec l'ensemble (1) de commande à vérin par l'intermédiaire d'une première broche d'entraînement (11) engagée dans une rainure d'entraînement (12) correspondante d'un coulisseau (13) solidaire du vérin (!') de l'ensemble (1) de commande à vérin et, d'autre part, avec le deuxième disque à came (8) au moyen d'une deuxième broche d'entraînement (14), solidaire dudit premier disque à came (7) et s'engageant dans une rainure curviligne correspondante (15) dudit deuxième disque à came (8). 4. Mechanism according to claim 2, characterized in that the first cam disk (7) is rotatably mounted on the vertical shaft (6) and cooperates, on the one hand, with the assembly (1) of actuating cylinder by means of a first drive pin (11) engaged in a corresponding drive groove (12) of a slider (13) integral with the cylinder (1 ') of the assembly (1) actuator and, on the other hand, with the second cam disk (8) by means of a second drive pin (14), integral with said first cam disk (7) and engaging in a corresponding curvilinear groove (15) of said second cam disk (8) .
5. Mécanisme, suivant la revendication 2, caractérisé en ce que le moyen de stabilisation à ressort (9) est muni à son extrémité agissant sur le deuxième disque à came (8) d'un axe d'entraînement (16) traversant un palier correspondant dudit deuxième disque à came (8), son extrémité opposée étant montée à pivotement dans un palier (17) du carter (10). 5. Mechanism according to claim 2, characterized in that the spring stabilizing means (9) is provided at its end acting on the second cam disk (8) of a drive shaft (16) passing through a bearing corresponding to said second cam disk (8), its opposite end being pivotally mounted in a bearing (17) of the housing (10).
6. Mécanisme, suivant la revendication 2, caractérisé en ce que le levier (40) de commande de la demi-barre (2) de manœuvre de l'aiguille, qui est solidarisé en rotation avec l'arbre vertical (6), est monté sur ce dernier par une extrémité et est pourvu, en direction de son extrémité opposée, d'une rainure oblongue (18) de logement d'un support (19) d'un galet (20) réglable en position.6. Mechanism according to claim 2, characterized in that the lever (40) for controlling the half-bar (2) for maneuvering the needle, which is secured in rotation with the vertical shaft (6), is mounted on the latter by one end and is provided, in the direction of its opposite end, an oblong groove (18) for housing a support (19) of a roller (20) adjustable in position.
7. Mécanisme, suivant l'une quelconque des revendications 2 et 6, caractérisé en ce que le galet (20) coopère avec une platine d'extrémité (21) de la demi-barre (2) de manœuvre de l'aiguille par l'intermédiaire d'un guidage oblong (22) de ladite platine (21), s'étendant perpendiculairement à l'axe longitudinal de la demi-barre (2).7. Mechanism according to any one of claims 2 and 6, characterized in that the roller (20) cooperates with an end plate (21) of the half-bar (2) of maneuvering the needle by the intermediate of an oblong guide (22) of said plate (21) extending perpendicularly to the longitudinal axis of the half-bar (2).
8. Mécanisme, suivant l'une quelconque des revendications 1 et 2, caractérisé en ce que le dispositif (3) de calage des aiguilles, qui est commandé par l'ensemble (1) de commande à vérin est formé par deux ensembles indépendants affectés chacun à une aiguille et constitué chacun par au moins une demi-barre (30) reliée par une extrémité à l'aiguille correspondante, guidée dans le carter (10) et pourvue à son autre extrémité d'une butée (31), par une cale (32), destinée à coopérer, en position d'application de l'aiguille correspondante contre le rail, avec la butée (31) et solidarisée avec un coulisseau (33) guidé dans un support (34) fixé dans le carter (10) de logement du mécanisme, ce coulisseau (33) coopérant, à une extrémité, avec les premier et deuxième disques à came (7 et 8), par l'intermédiaire, respectivement d'un galet (35) et d'un arbre de calage (36) coaxial au galet (35), et à son autre extrémité avec un moyen de verrouillage complémentaire (300), un ressort de rappel (38) logé dans le support (34) appliquant le coulisseau (33) contre lesdits disques à came (7 et 8). 8. Mechanism according to any one of claims 1 and 2, characterized in that the device (3) for setting the needles, which is controlled by the assembly (1) control cylinder is formed by two independent sets affected each with a needle and each consisting of at least one half-bar (30) connected at one end to the corresponding needle, guided in the housing (10) and provided at its other end with a stop (31), by a wedge (32) intended to cooperate, in the position of application of the corresponding needle against the rail, with the stop (31) and secured to a slide (33) guided in a support (34) fixed in the housing (10). ) of the mechanism, this slider (33) cooperating at one end with the first and second cam discs (7 and 8), respectively, via a roller (35) and a spindle wedging (36) coaxial with the roller (35), and at its other end with a complementary locking means (300), a return spring (38) housed in the support (34) applying the slider (33) against said cam discs (7 and 8).
9. Mécanisme, suivant l'une quelconque des revendications 2 et 8, caractérisé en ce que le deuxième disque à came (8) est pourvu, sur sa tranche tournée vers l'arbre de calage coaxial (36) du coulisseau (33) d'un logement (8') de verrouillage de l'arbre de calage coaxial (36) dans la position de blocage de la demi-barre (30) par appui de la cale (32) contre la face correspondante de la butée (31), lorsque l'aiguille correspondante est appliquée contre le rail.9. Mechanism according to any one of claims 2 and 8, characterized in that the second cam disc (8) is provided on its edge facing the coaxial wedging shaft (36) of the slide (33). a housing (8 ') for locking the coaxial pitch shaft (36) in the locking position of the half-bar (30) by pressing the wedge (32) against the corresponding face of the stop (31) when the corresponding needle is applied against the rail.
10. Mécanisme, suivant l'une quelconque des revendications 2 et 8, caractérisé en ce que le premier disque à came (7) est pourvu sur sa tranche de deux cames identiques (71), disposées symétriquement par rapport au rayon passant par l'axe de la deuxième broche d'entraînement (14) et destinées à coopérer avec le galet (35) du coulisseau (33) pour le dégagement de l'arbre de calage coaxial (36) hors du logement (8'), avant une manœuvre de calage ou pour un déverrouillage de calage. 10. Mechanism according to any one of claims 2 and 8, characterized in that the first cam disc (7) is provided on its edge with two identical cams (7 1 ), arranged symmetrically with respect to the radius passing through the the axis of the second drive spindle (14) and intended to cooperate with the roller (35) of the slider (33) for the clearance of the coaxial wedging shaft (36) from the housing (8 '), before a stall maneuver or for stall release.
11. Mécanisme, suivant l'une quelconque des revendications 2 et 8 à 10, caractérisé en ce que, dans la position extrême de service correspondant à un calage en position de l'aiguille, par appui de la butée (31) de la demi-barre (30) contre la cale (32) du coulisseau (33), la deuxième broche d'entraînement (14) du premier disque à came (7) est positionnée dans la rainure curviligne (15) du deuxième disque à came (8) à une extrémité de cette dernière, de telle manière que le début du mouvement de rotation du premier disque à came (7) s'effectue sans entraînement du deuxième disque à came (8), la deuxième broche d'entraînement (14) se déplaçant dans la rainure curviligne (15). 11. Mechanism according to any one of claims 2 and 8 to 10, characterized in that, in the extreme service position corresponding to a setting in position of the needle, by pressing the abutment (31) of the half -barre (30) against the shim (32) of the slide (33), the second drive pin (14) of the first cam disk (7) is positioned in the curvilinear groove (15) of the second cam disk (8) ) at one end thereof, such that the beginning of the rotational movement of the first cam disk (7) takes place without driving the second cam disk (8), the second driving pin (14) is moving in the curvilinear groove (15).
12. Mécanisme, suivant l'une quelconque des revendications 2,12. Mechanism according to any one of claims 2,
8 et 9, caractérisé en ce que le moyen de verrouillage complémentaire (300) du dispositif (3) de calage des aiguilles consiste, pour chaque ensemble indépendant affecté à une aiguille, en un levier (301) monté à pivotement dans le carter (10) du mécanisme et actionné par l'intermédiaire d'une biellette (302) montée à pivotement, par son extrémité opposée à celle en liaison avec le levier (301) sur un élément coulissant (303) guidé en déplacement, parallèlement à l'axe longitudinal du vérin (1') de l'ensemble (1) de commande à vérin sur un support de guidage (304) solidarisé avec le support (34) de guidage du coulisseau (33), et en un moyen (305) d'entraînement en déplacement de l'élément coulissant (303), solidaire du vérin (V) de l'ensemble (1) de commande à vérin, le levier (301) étant appliqué dans les positions extrêmes de manœuvre des aiguilles, par son extrémité libre, sur le coulisseau (33), à l'extrémité opposée à celle portant le galet (35) et l'arbre de calage coaxial (36).8 and 9, characterized in that the complementary locking means (300) of the needle setting device (3) consists, for each independent assembly assigned to a needle, in a lever (301) pivotally mounted in the housing (10). ) of the mechanism and actuated by means of a rod (302) pivotally mounted at its end opposite to that in connection with the lever (301) on a sliding element (303) guided in displacement, parallel to the axis longitudinal cylinder (1 ') of the assembly (1) actuator cylinder on a guide support (304) secured to the support (34) for guiding the slide (33), and means (305) of driving movement of the sliding element (303), integral with the jack (V) of the cylinder control assembly (1), the lever (301) being applied in the end positions of the needles, by its free end, on the slider (33), at the end opposite to that carrying the roller (35) and the coaxial wedging shaft (36).
13. Mécanisme, suivant la revendication 12, caractérisé en ce que pour l'un des ensembles du moyen de verrouillage complémentaire (300), le levier (301) est articulé dans le carter (10) par un axe le traversant à distance de ses deux extrémités, la biellette (302) étant articulée sur ledit levier (301) à son extrémité opposée à celle destinée à actionner le coulisseau (33), alors que l'élément coulissant (303) se présente sous la forme d'un simple coulisseau contre lequel s'appuie le moyen d'entraînement (305) solidaire du vérin l' de l'ensemble (1) de commande à vérin pour le verrouillage en position de service du coulisseau (33), le déplacement en sens inverse dudit élément coulissant (303) étant simplement effectué suite au basculement du levier (301) sous l'effet du déplacement du coulisseau (33), lorsque le moyen d'entraînement (305) est dégagé de son appui sur ledit élément coulissant (303).13. Mechanism according to claim 12, characterized in that for one set of complementary locking means (300), the lever (301) is articulated in the housing (10) by an axis passing through it at a distance from its two ends, the rod (302) being articulated on said lever (301) at its end opposite to that intended to actuate the slide (33), while the sliding element (303) is in the form of a simple slide against which rests the drive means (305) integral with the jack 1 'of the cylinder control assembly (1) for the locking in the service position of the slide (33), the displacement in the opposite direction of said sliding element (303) being simply performed following the tilting of the lever (301) under the effect of the displacement of the slider (33), when the drive means (305) is released from its support on said sliding element (303).
14. Mécanisme, suivant la revendication 12, caractérisé en ce que pour l'autre ensemble du moyen de verrouillage complémentaire (300), le levier (301) est articulé dans le carter (10) par un axe le traversant à une extrémité, la biellette (302) étant articulée sur ledit levier (301) à distance de ses deux extrémités, alors que l'élément coulissant (303) se présente sous la forme d'un coulisseau muni d'un entraîneur incurvé (303') coopérant par forme avec le moyen d'entraînement (305) solidaire du vérin (V) de l'ensemble (1) de commande à vérin pour son déplacement vers une position de déverrouillage du coulisseau (33), ou vers une position de verrouillage dudit coulisseau (33).14. Mechanism according to claim 12, characterized in that for the other set of complementary locking means (300), the lever (301) is articulated in the housing (10) by an axis passing through it at one end, the link (302) being articulated on said lever (301) at a distance from its two ends, whereas the sliding element (303) is in the form of a slide provided with a curved trainer (303 ') interacting by shape with the drive means (305) secured to the jack (V) of the cylinder control assembly (1) for moving it to an unlocking position of the slide (33), or to a locking position of said slide (33). ).
15. Mécanisme, suivant l'une quelconque des revendications 12 à 14, caractérisé en ce que le moyen d'entraînement (305) solidaire du vérin (V) de l'ensemble (1) de commande à vérin est constitué par deux galets identiques montés de part et d'autre du vérin (V), parallèlement à son axe longitudinal et avec un décalage entre eux dans le sens de l'axe longitudinal. 15. Mechanism according to any one of claims 12 to 14, characterized in that the drive means (305) integral with the cylinder (V) of the assembly (1) control cylinder is constituted by two identical rollers mounted on either side of the jack (V), parallel to its longitudinal axis and with an offset between them in the direction of the longitudinal axis.
EP07848235A 2006-09-14 2007-09-13 Mechanism for operating switch points Active EP2069184B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL07848235T PL2069184T3 (en) 2006-09-14 2007-09-13 Mechanism for operating switch points

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0653738A FR2905922B1 (en) 2006-09-14 2006-09-14 MECHANISM FOR MANEUVERING NEEDLES
PCT/FR2007/001496 WO2008031956A2 (en) 2006-09-14 2007-09-13 Mechanism for operating switch points

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EP2069184A2 true EP2069184A2 (en) 2009-06-17
EP2069184B1 EP2069184B1 (en) 2011-09-28

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US (1) US7913956B2 (en)
EP (1) EP2069184B1 (en)
CN (1) CN101528527B (en)
AT (1) ATE526221T1 (en)
DK (1) DK2069184T3 (en)
FR (1) FR2905922B1 (en)
MA (1) MA30659B1 (en)
MX (1) MX2009002747A (en)
PL (1) PL2069184T3 (en)
WO (1) WO2008031956A2 (en)

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Also Published As

Publication number Publication date
WO2008031956A3 (en) 2008-05-15
EP2069184B1 (en) 2011-09-28
FR2905922A1 (en) 2008-03-21
US20090242706A1 (en) 2009-10-01
US7913956B2 (en) 2011-03-29
FR2905922B1 (en) 2008-12-05
WO2008031956A2 (en) 2008-03-20
PL2069184T3 (en) 2012-02-29
CN101528527A (en) 2009-09-09
DK2069184T3 (en) 2012-01-16
MA30659B1 (en) 2009-08-03
ATE526221T1 (en) 2011-10-15
MX2009002747A (en) 2009-04-15
CN101528527B (en) 2014-04-23

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