EP3486410A1 - Curtain driving and locking device - Google Patents

Abstract

The invention relates to a locking / unlocking device (1) comprising a slider (2), a striker (3) fixed in a direction parallel to the slider (2), a crew (4) movable along the slider (2). ) in a first direction close to the striker (3) or in a second direction away from the striker (3), the crew (4) being in a closed position, in which the crew (4) is able to hook the striker (3) so as to oppose a movement of the crew (4) in the second direction, when the crew (4) moves in the first direction, and in an open position, in which the crew (4) releases the striker (3) when the crew (4) moves in the second direction.

Description

The present invention relates to a locking / unlocking device. Such a device is typically used for a curtain door capable of closing an opening of a building, such as a shed or a vehicle, more particularly a heavy weight.

The transport vehicles and especially refrigerated transport vehicles comprise a loading compartment formed by a floor, side walls and an upper roof and generally have a rear access opposite to a front wall.

To access the loading compartment, it is known to provide doors with one or more wings hinged to the rear ends of the side walls.

These doors, in the open position, give access to the full width and height to the compartment, but their opening and closing require a large lateral clearance. The opening and closing of these doors is done manually because it is very complex to motorize the door movements. In addition, swing doors are unsatisfactory in terms of energy because they create significant heat loss during opening and closing operations.

It is also known to provide transport vehicles, in particular refrigerator door curtain. For this, the vehicle has a rear door formed by a curtain of several panels, usually isothermal, adjacent and articulated together along horizontal axes and whose ends are provided with rollers. The rollers are engaged in rails, so that the curtain is movable between a vertical downward position of closing the access to the loading compartment and a raised horizontal opening position in which it generally extends below the flag inside the load compartment.

Locking the curtain in the closed position can be complex to achieve and the present invention to solve this technical problem.

According to a first aspect, the subject of the invention is a locking / unlocking device comprising a slideway, a striker stationary in a direction parallel to the slide, a movable element relative to the slideway in a first direction approaching the striker or according to a second direction away from the striker, the crew being in a closed position, in which the crew is able to hook the striker so as to oppose a movement of the crew in the second direction, when the crew is moves in the first direction, and in an open position, in which the crew releases the strike, when the crew moves in the second direction.

• la gâche est mobile selon une direction transverse à la glissière entre une position fermée où la gâche est apte à s'opposer à un mouvement de l'équipage selon le deuxième sens et une position ouverte où la gâche libère l'équipage,
• le dispositif comprend encore un moyen de rappel apte à rappeler la gâche vers sa position fermée,
• l'équipage et/ou la gâche comprend une forme biaise de manière à ce que l'équipage en position fermée soit apte à déplacer la gâche vers sa position ouverte lorsque l'équipage se déplace selon le premier sens,
• l'équipage comprend un chariot lié à la glissière et mobile le long de la glissière, un coulisseau lié au chariot et mobile relativement au chariot parallèlement à la glissière, entre une première butée et une deuxième butée, la première butée étant apte à s'opposer à un mouvement du coulisseau relativement au chariot selon le premier sens, la deuxième butée étant apte à s'opposer à un mouvement du coulisseau relativement au chariot selon le deuxième sens, un crochet articulé relativement au coulisseau autour d'un axe sensiblement perpendiculaire à la glissière de manière à pouvoir tourner entre une position fermée, dans laquelle le crochet peut accrocher la gâche de manière à s'opposer à un mouvement du crochet selon le deuxième sens, et une position ouverte, dans laquelle le crochet libère la gâche, et une biellette disposée entre le chariot et le crochet de telle manière à faire tourner le crochet en position fermée lorsque le chariot et le coulisseau sont en contact via la première butée, et en position ouverte lorsque le chariot et le coulisseau sont en contact via la deuxième butée,
• l'axe d'articulation du crochet relativement au coulisseau est sensiblement perpendiculaire à la direction du mouvement de la gâche,
• le crochet comprend une forme biaise de manière à ce que le crochet en position fermée soit apte à déplacer la gâche vers sa position ouverte lorsque le crochet se déplace selon le premier sens,
• la glissière est un vérin sans tige dont la navette est solidaire de l'équipage,
• l'équipage est solidaire d'un rideau.

According to other features, the device of the invention comprises one or more of the following optional features considered alone or according to all the possible combinations:

• the striker is movable in a direction transverse to the slide between a closed position where the striker is able to oppose a movement of the crew in the second direction and an open position where the striker releases the crew,
• the device further comprises a return means adapted to recall the keeper to its closed position,
• the crew and / or the striker comprises a biased shape so that the crew in the closed position is able to move the striker to its open position when the crew moves in the first direction,
• the crew comprises a carriage connected to the slide and movable along the slide, a slide connected to the carriage and movable relative to the carriage parallel to the slide, between a first stop and a second stop, the first stop being adapted to s' to oppose a movement of the slide relative to the carriage in the first direction, the second stop being able to oppose a movement of the slide relative to the carriage in the second direction, a hook articulated relative to the slide about an axis substantially perpendicular to the slide so as to be rotatable between a closed position, in which the hook can hook the striker so as to oppose a movement of the hook in the second direction, and an open position, in which the hook releases the striker, and a linkage disposed between the carriage and the hook so as to rotate the hook in the closed position when the carriage and the orlisseau are in contact via the first stop, and in the open position when the carriage and the slide are in contact via the second stop,
• the axis of articulation of the hook relative to the slide is substantially perpendicular to the direction of movement of the striker,
• the hook comprises a biased shape so that the hook in the closed position is able to move the striker to its open position when the hook moves in the first direction,
• the slide is a rodless cylinder whose shuttle is attached to the crew,
• the crew is attached to a curtain.

According to another aspect, the subject of the invention is a vehicle comprising a rear opening, a curtain capable of selectively closing or opening the opening and such a device for locking / unlocking the curtain.

• la gâche est disposée à une extrémité de la glissière adjacente à l'ouverture,
• le dispositif est disposé à l'intérieur du bâtiment.

According to other features, the building of the invention comprises one or more of the following optional features considered alone or according to all the possible combinations:

• the striker is disposed at one end of the slideway adjacent to the opening,
• the device is disposed inside the building.

• les figures 1a et 1b présentent un équipage selon l'invention en position ouverte, respectivement en vue de profil et en vue de dessus,
• les figures 2a et 2b présentent le même équipage en position fermée, respectivement en vue de profil et en vue de dessus,
• les figures 3a-d présentent un dispositif de verrouillage/déverrouillage selon l'invention en vue de dessus au cours d'une séquence de fermeture,
• les figures 4a-d présentent le même dispositif de verrouillage/déverrouillage selon l'invention en vue de dessus au cours d'une séquence d'ouverture,
• la figure 5 présente une gâche en vue perspective,
• les figures 6 et 7 présentent en vue perspective éclatée un équipage selon l'invention, respectivement depuis un point de vue supérieur et depuis un point de vue inférieur,
• la figure 8 présente en vue perspective un dispositif de verrouillage/déverrouillage selon l'invention,
• les figures 9 et 10 présentent en vue perspective, un bâtiment équipé d'un tel dispositif, respectivement rideau ouvert et rideau fermé.

The invention will be better understood on reading the nonlimiting description which follows, with reference to the appended figures.

• the Figures 1a and 1b have a crew according to the invention in the open position, respectively in profile view and in top view,
• the Figures 2a and 2b present the same crew in the closed position, respectively in profile view and in top view,
• the Figures 3a-d have a locking / unlocking device according to the invention in plan view during a closing sequence,
• the Figures 4a-d have the same locking / unlocking device according to the invention in plan view during an opening sequence,
• the figure 5 presents a strike in perspective,
• the Figures 6 and 7 present in exploded perspective view a crew according to the invention, respectively from a higher point of view and from a lower point of view,
• the figure 8 present in perspective view a locking / unlocking device according to the invention,
• the figures 9 and 10 present in perspective view, a building equipped with such a device, respectively open curtain and closed curtain.

As illustrated in figure 8 The invention relates to a device for locking / unlocking 1. Such a device 1 comprises a slideway 2, a striker 3 and a crew 4. The striker 3 is stationary in a direction parallel to the slideway 2. The crew 4 is movable along the slide 2. This mobility allows to bring the crew 4 of the striker 3, in a first direction S1, to achieve a locking of the crew 4 with the striker 3. This mobility can still distance the l 4 of the striker 3, in a second direction S2, after unlocking the crew 4 of the striker 3.

According to an important characteristic, when the crew 4 moves in the first direction S1, or when approaching the striker 3, the crew 4 is in the closed position, as illustrated in FIGS. Figures 2a and 2b . In this closed position, the crew 4 is able to hook the keeper 3. Said hooking is such that the striker 3 opposes a movement of the crew 4 in the second direction S2, ie tending to move away from the striker 3. Said attachment locks the crew 4 with the keeper 3. On the contrary when the crew 4 moves in the second direction S2, or away from the striker 3, the crew 4 is in position open, as shown in Figures la and 1b. In this open position, the crew 4 releases the striker 3 and is not able to perform a snap.

As more particularly illustrated in figures 5 , 3a-d and 4a-d the striker 3 is movable in a direction D transverse to the slide 2. The striker 3 can thus move between a closed position and an open position. In the closed position, more particularly illustrated in figures 5 , 3a , 3d , 4a-d , the striker 3 is able to oppose a movement of the crew 4 in the second direction S2. This is, for example, achieved by means of the surface 31 of the keeper 3, transverse to the slide 2 and the directions S1 and S2 and still advantageously flat, in that it cooperates with the homologous surface 91 of a hook 9 4. In the open position, more particularly illustrated in the figure 3c the striker 3 is retracted and releases the crew 4, which can then freely flow in both directions S1 and S2.

According to another characteristic, the device 1 also comprises a return means 33. This return means 33, which can be any elastic means, such as a coil spring, is arranged to return the latch 3 to its closed position. Thus the keeper 3 is, by default, in the closed position. It is however possible to move the striker 3 in the open position by opposing the return means 33.

Thus, according to another characteristic, the crew 4 and / or the striker 3 comprises a biased shape 32, 92, shaped and arranged so that the crew 4 in the closed position is able to move the striker 3 to its position. open when the crew 4 moves in the first direction S1. Thus when the crew 4 accost the striker 3, the crew 4 moves in the first direction S1 and is therefore in the closed position. Even if the keeper 3 is in the closed position, which is the case if a return means 33 is present, the presence of at least one biased shape 32, 92 will allow the crew 4 to open the keeper 3. A skewed shape is a shape inclined relative to the direction of the slide 2 and the movement S1, S2 and still inclined relative to the direction D of the movement of the striker 3. Advantageously the biased shape 32, 92 is bisector of the direction of movement S2, S2 and direction D, advantageously inclined at 45 ° between these two directions, substantially perpendicular. Thus such a skewed shape 32, 92 makes it possible to transform the displacement of the crew 4 in the first direction S1 into a displacement of the striker 3 in the transverse direction D. The skewed shape can be disposed on the end of the striker 3 contacting the crew 4 in the form of a bevel 32. The biased shape can still be disposed on the end of the crew 4 coming into contact with the striker 3, here a hook 9, in the form of A bevel 92. If the two biased shapes 32 and 92 are employed, they are advantageously arranged so as to be substantially parallel at their contact. The opening of the striker 3 by the crew 4 is more particularly illustrated in the Figures 3a-d .

In order to carry out the functions previously described, the crew 4 according to one embodiment comprises a carriage 5, a slider 6, a first stop 7, a second abutment 8, a hook 9 and a link 11. This is more particularly visible at the Figures 6 and 7 .

The carriage 5 is connected to the slide 2 along which it is movable. The carriage 5 can thus move in the first direction S1 or in the second direction S2.

The slider 6 is connected to the carriage 5 and is movable relative thereto parallel to the slider 2. The slider 6 can thus move in the first direction S1 or in the second direction S2. The movement of the slider 6 relative to the carriage 5 is stopped by two stops 7 and 8. The first stop 7 is shaped and arranged to oppose a movement of the slider 6 in the first direction S1. Thus the first stop 7 allows the carriage 5 to drive the slide 6 in a displacement along the second direction S2. The second stop 8 is shaped and arranged to oppose a movement of the slide 6 in the second direction S2. Thus the second stop 8 allows the carriage 5 to drive the slider 6 in a displacement in the first direction S1.

The hook 9 is in charge of the functions related to locking. This hook 9 is connected to the slider 6 by a hinge axis 10 substantially perpendicular to the slide 2. The hook 9 is generally driven in translation by the slider 6 via the hinge. The hook 9 can rotate between a closed position, more particularly illustrated in FIGS. Figures 3a-d and an open position more particularly illustrated at Figures 4b-d . In the closed position the hook 9 can hook the striker 3 so as to oppose a movement of the hook 9 in the second direction S2. This is more particularly achieved by the cooperation of an edge 91 of the hook with an edge 31 of the striker 3. In the closed position the edge 91 is substantially perpendicular to the slide 2. The edge 91 is then substantially parallel to the striker 3 and on board 31. In the open position, on the contrary, the hook 9 is retracted so as to disengage the striker 3.

The rod 11 is disposed between the carriage 5 and the hook 9 so as to turn the hook 9 in the closed position when the carriage 5 and the slider 6 are in contact via the first stop 7, and in the open position when the carriage 5 and the slider 6 are in contact via the second stop 8. For this the rod 11 is hinged relative to the hook 9 with a lever arm relative to the hinge axis 10 of the hook 9 relative to the slider 6. The first end 16 of the rod 11 is integral and articulated with the carriage 5. The second end 17 of the rod 11 is integral and articulated with the hook 9.

According to another characteristic, the axis of articulation of the hook 9 relative to the slider 6 is substantially perpendicular to the direction D of the movement of the keeper 3. This allows the rotation of the hook 9 to retract the latter in the open position so to release the striker 3.

The biased shape 92 of the crew 4 is carried by the end of the hook 9 coming into contact with the striker 3. Also the hook 9 comprises a biased shape 92 so that the hook 9 in the closed position is able to move the keeper 3 to its open position when the hook 9 moves in the first direction S1, or in the docking configuration of the keeper 3 by the hook 9.

Since the device 1 has been described, its operation will now be detailed with reference to the Figures 3a-d and 4a-d . These figures being similar, the same reference signs are applicable. In order not to overload, they have been omitted from the majority of figures.

The Figures 3a-d illustrate the closing / locking sequence. To the figure 3a the striker 3, under the action of the return means 33, is in the closed position. The crew 4 moves in the first direction S1, or to the right in the plane of the Figures 3a-d and 4a-d in order to come close to the striker 3. Also the crew 4 is in the closed position, in which the hook 9 is in the closed position. This is achieved in the following manner. The carriage 5 moves in the first direction S1. In doing so, it comes into contact with the slider 6 via the second abutment 8. Also in this configuration the link 11 is "pushed" by the carriage 5 and places the hook 9 in its closed position, here with the edge 91 substantially perpendicular to the slide 2 and the movements S1, S2.

To the figure 3b , the crew 4 whose configuration does not change is always in the closed position and continues to move in the first direction S1 to come into contact with the striker 3. The hook 9 comes into contact with the striker 3 and more particularly the biased shape 92 of the hook 9 with the corresponding skew shape 32 and homologous to the striker 3. This moves the striker 3 from a closed position to an open position, allowing the passage of the end of the hook 9, to beyond the strike 3. This movement continues to figure 3c where the keeper 3 is in the open position.

To the figure 3d , the hook 9 exceeds the striker 3 and particularly the edge 91 exceeds the edge 31. The striker 3, under the action of the return means 33 then returns to the closed position, the edge 31 of the striker sliding behind the edge 91 of the 9 hook, providing a hooking, preventing the hook 9 and with him the crew 4 to go back in the second direction S2, and then achieving a locking of the crew 4 on the striker 3.

The 3d figures , 4a-d illustrate the opening / unlocking sequence. In the locked configuration, shown in figure 3d , the crew 4 is in the closed position because the carriage 5 is in contact with the slider 6 via the second stop 8. During the entire unlocking sequence, the keeper 3 remains in the closed position.

From this locked configuration, the carriage 5 starts a movement in the second direction S2, ie to the left in the plane of the Figures 3a-d and 4a-d . The carriage 5 leaves the second stop 8. Due to an interval between the second stop 8 and the first stop 7, the carriage 5 does not reach the first stop 7, but has a free stroke during which the trolley 5 moves alone, without driving with it the slider 6. This free travel allows a relative movement of the carriage 5 vis-à-vis the slider 6 which allows the link 11 to act on the hook 9. The carriage 5 " pulls "the rod 11 which in turn" pulls "on the hook 9 and thus rotates about the axis 10.

The movement continues and, at the figure 4b the hook 9 is in the fully open position. Thus retracted it releases the striker 3. The carriage 5 then comes into contact with the first stop 7. It follows from this contact, that the carriage 5 drives the slider 6 in its movement in the second direction S2 and with the slide 6, the hook 9. It should be remembered that the hook 9 is integral in translation of the slider 6, via the articulation axis 10. Also during the opening phase of the hook 9, which spreads during the race free of the carriage 5 between the two stops 8, 7, the axis 10 remains stationary relative to the slide 2 and the hook 9 is not translated.

From the contact of the carriage 5 with the first stop 7, that is to say Figures 4c and 4d , the carriage 5 drives all the crew 4 and the hook 9, in its displacement along the second direction S2. Thus the hook 9 in the open position returns to the striker 3 and disengages from the striker 3, realizing unlocking of the device 1.

During locking, the crew 4 and the hook 9 remain in the closed position. It is the striker 3 which opens under the docking action of the crew 4 / hook 9. When unlocking, the keeper 3 remains in the closed position. It is the crew 4 / hook 9 which opens in order to retract and allow the release.

It follows from the preceding description that the movement of the carriage 5 makes it possible to drive the whole of the crew 4, possibly with an offset when changing direction S1, S2, in order to make the changes between open and closed position and thus locking / unlocking. Also according to an advantageous embodiment, the carriage 5 is controlled by an actuator. Preferably, the slide 2 is a rodless cylinder. A rodless jack is an actuator comprising a slide 2 and a shuttle 18 movable along the slide 2, preferably controlled manner. According to one characteristic the crew 4 previously described, and more particularly its carriage 4, is secured to the shuttle 18. The rodless cylinder can be of any type, and preferably pneumatic. Thus a control of the rodless cylinder in the first direction S1 makes it possible automatically to lock the device 1 and a control rodless cylinder in the second direction S2 allows to automatically perform an unlocking. This advantageously allows the remote locking / unlocking, offering a great latitude of location of the device 1 and ease of integration.

The movement of the shuttle 18 and the crew 4 along the slide 2 can advantageously be used. Thus, if the crew 4 is secured to a curtain 12, the control of the rodless jack selectively allows the closure of the curtain 12 ending in a locking or unlocking followed by an opening of the curtain 12. A curtain here means a flexible curtain: for example in textile, an armored curtain: for example a flexible curtain further comprising rigid whales preferably parallel to each other and perpendicular to the slide 2, or a curtain with articulated blades, such a store.

As illustrated in figure 8 , such a curtain 12 may advantageously be driven in motion by the crew 4, to which it can be secured by a connecting fork 20 articulated on lugs 19 integral with the slider 6.

The invention also relates to a building 13 comprising an opening 14 and a curtain 12 capable of selectively closing or opening the opening 14. Such a building 13 advantageously comprises a locking / unlocking device 1 according to the invention, in order to achieve the closure curtain 12 and its locking, and its unlocking and the opening of the curtain 12. A building 13 here means everything fixed equipment, such as a warehouse or a shed, or mobile, such as a motor vehicle or heavy vehicle.

The figures 9 and 10 illustrate a device 1 according to the invention used to operate a curtain door closing the rear of a cargo truck / building 13. The figure 9 illustrates the building 13 with the door / curtain 12 open. The figure 10 illustrates the same building 13 with the door / curtain 12 closed. The point of view is located inside the truck 13, forming a substantially parallelepipedic volume, looking towards the rear and the top. The opening 14 is formed in a wall, for example the rear wall. The curtain 12 is attached to the crew 4. Only a first blade of the curtain 12 is shown for clarity. The slide 2 is disposed under the ceiling of the truck 13.

According to another characteristic, the striker 3 is disposed at one end of the slider 2, preferably the end adjacent to the opening 14.

According to another characteristic, the device 1 is disposed inside the building 13. This advantageously makes it possible to provide an anti-vandal protection by providing an aesthetic arrangement in that the device 1 is hidden.

It appears that the length of the slide 2 determines the amplitude of movement of the curtain 12 between its open and closed positions and thus corresponds substantially, by greater value, to the length of the opening 14. The curtain 12 being flexible or at least articulated, the slide 2 advantageously does not have to be aligned with the plane of the opening 14 and can, as illustrated, be arranged along one of the walls of the truck 13.

Claims (12)

Locking / unlocking device (1) characterized in that it comprises a slide (2), a strike (3) fixed in a direction parallel to the slide (2), a crew (4) movable along the slide ( 2) in a first direction (S1) close to the keeper (3) or in a second direction (S2) away from the striker (3), the crew (4) being in a closed position, in which the crew ( 4) is adapted to hook the striker (3) so as to oppose a movement of the crew (4) in the second direction (S2), when the crew (4) moves in the first direction (S1 ), and in an open position, in which the crew (4) releases the striker (3), when the crew (4) moves in the second direction (S2). Device (1) according to the preceding claim, wherein the striker (3) is movable in a direction (D) transverse to the slide (2) between a closed position where the striker (3) is able to oppose a movement of the crew (4) in the second direction (S2) and an open position where the striker (3) releases the crew (4). Device (1) according to any one of the preceding claims, further comprising a return means (33) adapted to recall the striker (3) to its closed position. Device (1) according to any one of the preceding claims, wherein the crew (4) and / or the keeper (3) comprises a biased shape (32, 92) so that the crew (4) in position closed is able to move the striker (3) to its open position when the crew (4) moves in the first direction (S1). Device (1) according to any one of the preceding claims, wherein the crew (4) comprises a carriage (5) connected to the slide (2) and movable along the slide (2), a slider (6) bound to the carriage (5) and movable relative to the carriage (5) parallel to the slide (2), between a first stop (7) and a second stop (8), the first stop (7) being able to oppose a movement of the slider (6) relative to the carriage (5) in the first direction (S1), the second abutment (8) being able to oppose movement of the slider (6) relative to the carriage (5) in the second direction (S2), a hook (9) hinged relative to the slider (6) about an axis (10) substantially perpendicular to the slide (2) so as to be rotatable between a closed position, in which the hook (9) can to hook the striker (3) so as to oppose a movement of the hook (9) in the second direction (S2), and an open position, in which the hook (9) releases the striker (3), and a link ( 11) disposed between the carriage (5) and the hook (9) so as to rotate the hook (9) in the closed position when the carriage (5) and the slider (6) are in contact via the first stop (7). ), and in the open position when the carriage (5) and the slider (6) are in contact via the second stop (8). Device (1) according to the preceding claim, wherein the axis (10) of articulation of the hook (9) relative to the slider (6) is substantially perpendicular to the direction (D) of the movement of the striker (3). Device (1) according to any one of the two preceding claims, wherein the hook (9) comprises a bias shape (92) so that the hook (9) in the closed position is able to move the striker (3) to its open position when the hook (9) moves in the first direction (S1). Device (1) according to any one of the preceding claims, wherein the slide (2) is a rodless cylinder whose shuttle (18) is integral with the crew (4). Device (1) according to any one of the preceding claims, wherein the crew (4) is integral with a curtain (12). Vehicle (13) comprising an opening (14) and a curtain (12) able to selectively close or open the opening (14) characterized in that it further comprises a locking / unlocking device (1) according to any one of the preceding claims, integral with the curtain (12). Vehicle (13) according to the preceding claim, wherein the striker (3) is disposed at one end of the slide (2) adjacent to the opening (14). Vehicle (13) according to any one of claims 10 to 11 wherein the device (1) is disposed inside the vehicle (13).

Images