EP3530851B1 - Locking system for a sectional door with lateral movement - Google Patents

Description

The present invention relates to a locking system for a sectional door with lateral movement comprising a wicket pivoting in the end section and more particularly for a wicket of such a sectional door.

It is known to use a sectional door to close an opening of relatively large size in a building, for example the garage door of a residential house. This type of door is most often used when the ceiling height inside the building is limited. Such a door comprises rigid panels juxtaposed and articulated with respect to one another around axes corresponding substantially to two neighboring edges of said panels. This set of panels, the latter also being called leaves, is guided by a lower rail (fixed to the ground) and an upper rail which each extend along the opening of the construction and inside it. generally making a right angled angle. The width of the panels is adapted to the radius of curvature of the elbow so that the set of panels can come in one closed position to close the opening and in another position allow passage (preferably complete) of the opening.

Such a sliding door sometimes includes a wicket. The purpose of the latter is to allow passage through part of the opening, when the door is in its closed position, without having to move the entire door. The gate is then formed by an end panel of the sectional door. In this case, provision is made to rotate the end panel around its axis of rotation provided with its neighboring panel.

The document FR2987063 discloses a sliding door with a wicket of this type. This door comprises a guide carriage associated with the wicket which remains coupled to the door during a movement of the latter and which comes to disconnect from the door when it reaches its closed position. This solution makes it possible to ensure good guiding of the door during all its lateral movements and prevents any exit of the guide carriage associated with the wicket from exiting its guide rail.

However, the solution proposed by this prior art document does not provide for straightforward locking.

The object of the present invention is therefore to improve the devices known from the prior art (and in particular from document FR2987063 ) by adding a locking function to the sectional door with wicket door.

• un chariot,
• une pièce intermédiaire reliée au chariot de manière à se déplacer avec celui-ci, ladite pièce intermédiaire comportant une partie en saillie formant un premier pêne et un logement présentant une surface d'arrêt,
• une gâche de forme complémentaire au premier pêne et présentant des moyens de retenue adaptés au premier pêne,
• un second pêne de forme adaptée au logement de la pièce intermédiaire, mobile entre une position de fermeture dans laquelle il vient en appui sur la surface d'arrêt dudit logement et une position de libération dans laquelle ledit second pêne vient échapper à la surface d'arrêt,
• un élément flexible (par exemple un câble ou similaire) pour faire passer le second pêne de sa position de fermeture à sa position de libération, et
• un système de libération actionné par une pièce de commande portée par la pièce intermédiaire, le système de libération pouvant coopérer avec les moyens de retenue de manière à libérer le premier pêne et la pièce de commande agissant sur le système de libération lorsque le second pêne rentre dans son logement dans la pièce intermédiaire.

To this end, the present invention provides a locking system for sectional door wicket comprising:

• a carriage,
• an intermediate piece connected to the carriage so as to move with the latter, said intermediate piece comprising a projecting part forming a first bolt and a housing having a stop surface,
• a keeper of complementary shape to the first bolt and having retaining means adapted to the first bolt,
• a second bolt of shape adapted to the housing of the intermediate piece, movable between a closed position in which it bears on the stop surface of said housing and a release position in which said second bolt comes to escape from the surface of stop,
• a flexible element (for example a cable or the like) for passing the second bolt from its closed position to its released position, and
• a release system actuated by a control part carried by the intermediate part, the release system being able to cooperate with the retaining means so as to release the first bolt and the control part acting on the release system when the second bolt returns in its housing in the intermediate room.

In this system, provision can be made for the first bolt to be intended to be mounted in a fixed upright, a frame upright for example. The second bolt is intended to be mounted on the sectional door gate and participates in locking the gate. The second bolt can take place in the housing of the intermediate part and is movable in this housing. In its closed position, it is trapped in said housing and in its release position it can exit from this housing, thus releasing the gate relative to the intermediate part. The release system meanwhile allows the first bolt to be released from the keeper.

The locking system proposed here makes it possible both to manage the coupling of a trolley with the wicket of a sectional door and to ensure a locking function of the wicket in the closed position thanks to the first bolt. This new system is also easy to use on a sectional door.

According to one embodiment of the locking system, provision is made for the intermediate part to include a central wall forming the bottom of the housing, for the first bolt to be in the form of a bracket with a base extending substantially parallel to the central wall, said base being connected to this central wall by two branches of the stirrup, and that the retaining means comprise two flexible tabs, the base and said flexible tabs being shaped such that when the first bolt enters the keeper, the tabs are first separated by the base and can then return to their rest position by then preventing a movement in the opposite direction of the first bolt.

In such a configuration, provision can also be made for the release system to include a zone of substantially conical shape slidably mounted in a direction perpendicular to the base and substantially parallel to the branches of the caliper so as to separate the flexible tabs one by one. on the other when said substantially conical zone approaches the base, and when the control part is a part articulated around an axis parallel to the base, elastically prestressed so as to project into the housing of the intermediate part, said part part taking a position substantially parallel to the central wall when the second bolt is in position in its housing and bearing on the release system in this position.

For locking the gate on the intermediate piece, the latter comprises for example a central wall separating the first bolt from the housing of said intermediate piece, the second bolt being mounted to pivot about an axis perpendicular to said central wall. Advantageously, the system then preferably comprises two second bolts, both mounted to pivot along an axis perpendicular to the central wall, the two bolts being engaged with one another such that the pivoting of one in one direction causes the other to pivot in the opposite direction. We then have two bolts mounted in opposition which can take the load of the gate.

Advantageously, the locking system further comprises a pulley associated with a door closing control system handle, the pulley being rotated with the handle, and the cable or the like connects the second bolt to the pulley. The crutch is preferably a crutch associated with a lock. Thus, the stand directly controls two locks at the same time.

Advantageously, to prevent opening by pivoting of the gate when the door is not in the closed position, the intermediate part comprises a central wall separating the first bolt from the housing of said intermediate part, and a lock is slidably mounted perpendicular to said central wall.

• plusieurs panneaux articulés les uns avec les autres, un panneau d'extrémité formant un portillon,
• un rail de guidage dit rail supérieur,
• un montant perpendiculaire au rail de guidage et formant une butée pour la porte, du côté du portillon, dans son déplacement le long du rail de guidage,

caractérisée en ce qu'elle comporte un système de verrouillage tel que décrit ci-dessus.The present invention also relates to a sectional door comprising:

• several panels articulated with each other, one end panel forming a gate,
• a guide rail called the upper rail,
• an upright perpendicular to the guide rail and forming a stop for the door, on the side of the wicket, in its movement along the guide rail,

characterized in that it comprises a locking system as described above.

In such a sectional door, the carriage can be slidably mounted in the guide rail; the keeper of complementary shape to the first bolt can be placed on the upright; the second bolt can be mounted on the gate; the intermediate piece is placed between the strike and the second bolt in the closed position of the sectional door and the wicket, the release system allowing the first bolt to be detached from the keep), and the flexible element can act on the second bolt to allow it to come out of its housing in the intermediate part and thus free the gate from said intermediate part.

• La figure 1 est une vue schématique d'ensemble d'un exemple de porte sectionnelle,
• Les figures 2 à 4 montrent dans diverses positions et sous des angles de vue en perspective différents un double pêne monté sur un portillon,
• Les figures 5 à 7 montrent en perspective sous différents angles de vue une pièce intermédiaire faisant à la fois office de pêne et de gâche,
• La figure 8 montre en perspective la pièce intermédiaire des figures 5 à 7 en position verrouillée dans une gâche fixe,
• Les figures 9 à 11 illustrent une coopération de la pièce intermédiaire des figures 5 à 7 avec le double pêne des figures 2 à 4,
• La figure 12 illustre une pièce rotative de commande,
• La figure 13 montre un système de renvoi d'angle pour câble,
• La figure 14 montre un patin d'arrêt inférieur,
• Les figures 15 et 16 illustrent en perspective sous deux angles de vue différents un verrou inférieur destiné à coopérer avec le patin d'arrêt de la figure 14,
• La figure 17 montre la coopération du patin de la figure 14 avec le verrou inférieur illustré sur les figures 15 et 16, et
• La figure 18 illustre la gâche fixe recevant la pièce intermédiaire sur la figure 8.

Details and advantages of the present invention will appear better from the following description, made with reference to the appended schematic drawing in which:

• The figure 1 is a schematic overview of an example of a sectional door,
• The figures 2 to 4 show in various positions and from different perspective view angles a double bolt mounted on a gate,
• The figures 5 to 7 show in perspective from different angles of view an intermediate part acting both as a bolt and a keeper,
• The figure 8 shows in perspective the intermediate part of the figures 5 to 7 in locked position in a fixed strike,
• The figures 9 to 11 illustrate a cooperation of the intermediate piece of figures 5 to 7 with the double bolt of figures 2 to 4 ,
• The figure 12 illustrates a rotating control part,
• The figure 13 shows an angle transmission system for cables,
• The figure 14 shows a lower stopper pad,
• The figures 15 and 16 illustrate in perspective from two angles of view different a lower lock intended to cooperate with the stop pad of the figure 14 ,
• The figure 17 shows the cooperation of the skate of the figure 14 with the lower lock shown on the figures 15 and 16 , and
• The figure 18 illustrates the fixed strike receiving the intermediate piece on the figure 8 .

The figure 1 illustrates a schematic overview of an example of a door which can be provided with a locking system as described below and illustrated in the other figures.

The door shown on the figure 1 is in the fully closed position. It thus completely obstructs an opening (which is therefore not visible in this figure) made in a wall 2, for example an outer wall of a garage of a single-family house (purely illustrative example). In the open position, the door is stored along another wall 4, adjacent to the wall 2 and perpendicular to the latter. The door slides in a known manner from its closed position to its open position by sliding relative to an upper rail 6. To limit the free volume necessary to pass from the wall 2 to the other wall 4, it is known to produce the door in several panels 8 articulated with respect to each other, relative to an axis substantially coincident with two adjacent parallel edges of two neighboring panels. Such a door, with hinged panels 8, or leaves or even sections, is usually called a sectional door.

In the remainder of the description, it will be assumed that the panels 8 each extend in a vertical plane. A high / low orientation is thus defined which is repeated in the remainder of the present description.

In the example shown on figure 1 , the door has five panels 8 (or sections). Among these, an end panel has a special role. This panel is called a gate 10. It only partially opens the opening made in the wall 2 without having to move the other panels 8. This opening is then made by rotating the gate 10 relative to the panel 8. neighbor around a vertical axis. For its locking, in the illustrated embodiment, the gate 10 cooperates, on the one hand, with an upright 12 of a door frame and, on the other hand, with a shoe 92 in the low position, that is to say. that is to say substantially at ground level.

The figures 2 to 18 illustrate a locking system which enables secure locking of the gate 10 in the closed position of the door.

The gate 10 is in the form of a panel. It has an outer face 14 and an inner face 16. As this panel has a certain thickness (generally of the order of a few centimeters), it also has a horizontal upper face called hereinafter upper edge 18, a lower face. horizontal hereinafter called lower edge 20 and two vertical faces hereinafter called vertical edges. Among these two vertical edges, there is an end edge 22 which faces the upright 12 in the closed position of the door and the wicket 10 and an interior vertical edge which faces a vertical edge of the neighboring panel 8.

The figures 2 to 4 show a set of two latches 24 arranged in the upper part of the end edge 22. Each latch 24 is mounted articulated in rotation about a horizontal axis 26 parallel to the outer face 14 and to the inner face 16 of the gate 10. As it will be explained below, each latch 24 has a mechanical function of a bolt, making it possible to lock / release depending on its position.

Each latch 24 has, on the one hand, a finger 28 and, on the other hand, a toothed part 30 which engages with the toothed part 30 of the other latch. The toothed parts 30 are arranged here between the two horizontal axes 26. The fingers 28 are oriented towards the inner face 16 of the gate. The finger 28 of the upper latch 24 moves between a position in which it lies substantially horizontal ( figure 3 ) and another position in which it is oriented towards the upper edge 18). The lower latch 24 is substantially symmetrical to the upper latch 24 with respect to a median plane of symmetry with respect to the two horizontal axes 26. It is thus movable between a position in which its finger 28 is substantially horizontal ( figure 2 ) and another position in which this finger is facing down ( figures 3 and 4 ). A spring preloads the latches 24 in their position in which the finger 28 of the upper latch 24 is oriented upwards and the finger 28 of the lower latch 24 is oriented downwards. The mechanical stop for limiting the travel of the latches 24 is for example produced at the level of the toothed parts 30. The latches 24 being in engagement with one another, the movement of one in a direction of rotation automatically causes the movement. on the other in the opposite direction of rotation.

Note that the upper latch 24 is provided with an accessory. This is a clip 32 for a flexible control element (not shown), for example a cable, allowing the latches 24 to be actuated against the preload force of the spring acting on them.

The figures 5 to 8 illustrate a part called an intermediate part 34 which performs both the function of a bolt and the function of a keeper. This intermediate piece 34 is suspended by a rod 36 from a carriage 38.

The carriage 38 here comprises two similar horizontal axles with a horizontal axle axis extending perpendicularly to the outer face 14 and to the inner face 16 of the gate 10. Each axle carries two wheels 40 and the wheels 40 on one side of the axles are in a first vertical plane (parallel to the gate 10) and the other two wheels 40 are in a second vertical plane parallel to the first. These wheels 40 are intended to move in the upper rail 6 to guide the gate 10 when the sectional door is slid.

In the illustrated embodiment, the rod 36 extends vertically in a central position relative to the four wheels 40.

The intermediate piece 34 here has an overall parallelepipedal shape with a projection forming a bolt 42.

The parallelepipedal portion has a bottom 44 of substantially rectangular shape from which extend on the same side an upper face 46, a lower face 48 and a front face 50. A housing, intended in particular to receive the latches 24 by the rear, is thus delimited by the bottom 44 and the three faces extending from this bottom 44. It is considered here that the rear of the gate 10 corresponds to its interior side (and its front to its exterior side). The upper face 46 has an upper rim 52 on its rear edge while the lower face 48 has a lower rim 54 on its rear edge.

The rod 36 which extends from the carriage 38 is housed in a bearing 56 which extends vertically at the level of the bottom 44. This bearing 56 extends over less than half the height of the bottom 44. A second bearing 56 is provided in the bottom 44. Thus, the same intermediate piece can be used for a sectional door which closes by sliding in one direction or the other (closing of the sliding door by sliding from the inside of the building towards the right or left).

We also note in the upper face 46 and in the lower face 48 the presence of a bore 55 which extends horizontally perpendicular to the bottom 44. This bore 55 is each time opening so as to form a slot. the surface of the intermediate piece 34. In each bore 55 there is a latch 57 which slides in the corresponding bore 55. Each lock 57 has a cylindrical guide part and a blade extending radially and performing the function of a bolt or lock.

The bolt 42 is here in the form of a bracket with a base 58 and two branches 60. The base 58 is in the form of a beam extending vertically, parallel to the bottom 44. The branches 60 each connect a end of the base 58 to the bottom 44, more precisely to a bearing 56 integrated into the bottom 44.

Between the branches 60 of the bolt 42 is a "free" space which is used to partially receive a mechanism for unlocking the bolt 42. This mechanism comprises a guide rod 62 which extends from the base 58 in the direction of the bolt. bottom 44. On this guide rod 62, of circular cylindrical shape, slides a conical head 64 whose base (of larger diameter) is oriented towards the bottom 44. This conical head 64 is extended by a hollow shaft 66 in the direction of the bottom 44.

At the bottom 44 is arranged a pusher 68 which is in the form of a plate mounted articulated in rotation with respect to an edge of the bottom 44. A spring prestresses the pusher 68 in its position shown in the figures. figures 5 to 8 , that is to say a projecting position inside the housing defined by the bottom 44, the upper face 46, the lower face 48 and the front face 50. This pusher 68 is movable between a projecting position, in which the plate forming this pusher forms for example an angle of between 10 and 45 °, for example 25 °, with the bottom 44, and another position in which this pusher 68 is substantially parallel to the bottom 44, or even in the plane of the bottom 44, a housing that can be provided for the pusher in the bottom 44 as illustrated in the drawing. On the side of the hollow shaft 66, the pusher 68 has for example a shaped receptacle adapted to the free end of the hollow shaft 66 to receive this free end when the pusher 68 presses on the hollow shaft 66. pivot connection is preferably made between the pusher 68 and the assembly formed by the hollow shaft 66 and the conical head allowing this assembly to have a translational movement while the pusher 68 has a pivoting movement.

The figure 8 illustrates the bolt 42 engaged in a fixed strike 70 which is shown without the bolt 42 on the figure 18 . In the proposed embodiment, the fixed strike 70 is a piece of molded synthetic material which has a recessed housing, of a shape suitable for receiving the bolt 42, surrounded by a rim. This keeper comes to take place in a slot made in the frame 12, the rim then coming rest on the surface of the frame and the housing being disposed inside the frame. The housing of the fixed strike 70 comprises two longitudinal sides 72 which extend substantially vertically (and parallel to the gate 10 in the closed position). Each longitudinal flank 72 carries an elastic tongue 74, the free end of which is located towards the bottom of the housing of the fixed strike 70. The elastic tabs 74 in their rest position are curved towards the inside of the fixed strike. Their length and size are such that they cooperate with the bolt 42 as follows: when the bolt 42 enters the fixed strike 70, the base 58 pushes the elastic tabs 74 outwardly of the fixed strike 70 then the ends of these tongues come to take place behind the base 58 after passing the latter, then preventing the withdrawal of the bolt 42 which is thus trapped in the fixed strike 70.

While figure 8 shows the cooperation of the intermediate piece 34 with the fixed strike 70, the figure 9 illustrates the cooperation of this intermediate piece 34 with the latches 24.

In the position shown on the figure 9 , the latches 24 are housed in the housing provided for this purpose in the intermediate part 34 and delimited by the bottom 44, the upper face 46, the lower face 48 and the front face 50. The fingers 28 of the latches 24 tend (due to to the spring preload acting on them) to leave this housing. When each latch 24 enters the housing of the intermediate piece, each finger 28 comes into contact either with the upper rim 52 or with the lower rim 54. The force exerted to bring the latches 24 into their housing causes the fingers 28 of the latches to pivot. 24 towards each other. Once the end of the finger 28 has passed the corresponding rim, the finger 28 is returned to its rest position and its end then comes to receive substantially in the corner of the housing formed by the upper face 46 and the upper rim 52 or in that formed by the lower face 48 and the lower rim 54. The latches 24 are then trapped in the housing of the intermediate part 34 and thus lock the gate 10 (which carries the latches 24) on the intermediate part 34.

On the figures 9 and 10 , we note that the locks 57 are in a so-called active position. The blade associated with each of these locks 57 is facing a notch 76 integral with the gate 10. In this position of the locks 57, even if the fingers 28 are actuated (as illustrated in FIG. figure 10 ) to bring the latches 24 out of their housing, the bolts 57 retain the gate 10 on the intermediate part 34.

The figure 12 illustrates a pulley 78 intended to receive one end of a control cable (not shown). We notice on the figure 1 that the gate 10 is provided with a crutch 80 for controlling a lock. Conventionally, such a crutch has an axis of square section. Thus, the pulley 78 comprises in its center a square bore 82 (produced directly in the pulley 78 or as illustrated in an insert integrated in the center of the pulley 78) so that it can be placed on the axis and be driven when the crutch 80 is actuated by a user. One end of the cable is then placed in a housing 83 provided in the pulley 78 and is held there fixedly by an attachment wedge 84. The pulley 78 is mounted in a box 85 fixed in the gate 10 using fixing tabs 86 and the cable is guided on the pulley 78 inside the housing 85. The other end of the cable is connected to the clip 32 which is associated with the upper latch 24. The cable is for example guided in a channel formed in the end edge 22 of the gate 10. The crutch 80 being remote from this end edge 22, it is provided at the height of the crutch 80, at the level of the edge of end, to have an angle transmission device 87 illustrated on figure 13 . This device is intended to be inserted into the end edge 22 of the gate and comprises two return pulleys 88 and two elastic fixing lugs 90.

The device shown in the drawing also offers locking in the low position. The figure 14 illustrates the pad 92 already mentioned above and used to achieve such a locking. This shoe 92 is arranged on a lower rail 94 in the immediate vicinity of the upright 12.

The figures 15 to 17 illustrate a vertical lock 96 intended to cooperate with the pad 92. Seen from the outside of the gate 10 ( figure 15 ), only the lower end of the vertical latch 96 is visible. The figure 16 shows vertical lock 96 from the inside. This vertical lock 96 is mounted on a support 98 which ensures both its guidance, its stroke limitation and its integration into the gate 10. As visible in particular on the figure 15 , the support 98 is designed to be integrated into the gate 10. The figure 16 shows the other functions of this support 98. This support 98 has an upper plate 100 and a lower plate 102 each provided with a guide hole adapted to the vertical latch 96. The latter has a swollen part 104 which takes place between the plate upper 100 and the lower plate 102. The position of this swollen part on the vertical latch 96 limits the downward travel of the vertical latch 96. The hole made in the lower plate 102 is such that the swollen part cannot pass through this hole. A resilient stop 106 limits the upward stroke of the vertical latch 96. This resilient stop 106 is an arm which is mounted for example on the swollen part and which extends upwards away from the vertical latch 96. hole made in the top plate 100 of the support 98 is such that the vertical latch 96 and the elastic stopper 106 can pass through this hole when the elastic stopper 106 is pressed towards the vertical latch 96 but not when the elastic stopper 106 is not is not constrained (position shown in the drawing). Thus, in order to place the vertical lock 96 on its support 98, the lock is slipped into the hole in the upper plate 100 by pressing the elastic stop 106 in the direction of the vertical lock 96. Then, the lower end of the vertical lock 96 can be slipped into the hole in the lower plate 102. The elastic stopper 106 is released and then comes to fulfill its function.

Note on the vertical latch 96, at its swelling portion 104, the presence of a clip 32 '. Like the clip 32 associated with a latch 24, this clip 32 'is intended to allow the hooking of a flexible element to connect it to the pulley 78. The flexible element can be a cable or the like of different types. : it can be a strand or a multi-stranded wire. It is preferably made of synthetic material, advantageously resistant to fire. It may also be a metallic, steel or other wire or cable (multistrand).

The operation of this device is as follows. It is assumed that the door is closed, as well as the gate.

In this fully closed position, the bolt 42 of the intermediate piece 34 is in the fixed strike 70 and the latches 24 are in the housing of the intermediate piece 34. At the level of the bolt 42, the latter is in the fixed strike 70 but in the unlocked position. Indeed, as the latches 24 are in their housing, the conical head 64 is controlled by the pusher 68 and pushes the elastic tabs 74 back into the unlocked position. However, it should be noted that even if the bolt 42 is in the unlocked position in the fixed strike 70, it prevents a rotational movement of the gate 10 and contributes to the safety of closing the gate and more generally the door.

The latches 24 are for their part in their locked position: their fingers 28 bear against the upper rim 52 and the lower rim 54 of the intermediate part 34. The latches 57 are for their part in their unlocked position. In Indeed, the bolts 57 are prestressed so that they project from the side of the bolt 42 in the rest position. Thus, when the intermediate piece 34 is positioned against the fixed strike 70, the bolts 57 fully enter their bores 55 and are then in the unlocked position. The locked position in which the blades of the bolts 57 face the notches 76 corresponds to the rest position (or preloaded).

From this closed position, it is possible to open the gate 10 by rotating it with respect to the neighboring panel 8 or to open the door by sliding it as one unit towards the other wall 4.

To open the gate 10, naturally a user will act on the crutch 80 as if to open a “normal” door. In doing so, it rotates the pulley 78 and the cables (or the like) act on the latches 24 and on the vertical latch 96. The latches 24 are pivoted towards their unlocked position, that is to say the fingers 28 come up. “Escape” from the upper rim 52 and from the lower rim 54. Simultaneously, the vertical latch 96 rises and comes to escape from the pad 92. Finally, the crutch 80 by pivoting releases the lock with which it is associated. The gate 10 can then pivot.

By pivoting, the gate 10 drives the latches 24 out of the housing of the intermediate part 34. The pusher 68 can then return to its rest position in this housing and thus the bolt 42 is locked in the fixed strike 70. This movement is carried out, on the one hand, by the elastic return exerted on the pusher 68 and, on the other hand, because the elastic tongues 74 drive the conical head towards the bottom 44 thus pushing back the hollow shaft 66 and the pusher 68.

When the gate 10 is closed, the latches 24 return into place in their housing. The vertical latch 96 is bevelled at its end so that the gate 10 can be slammed and closed without having to act on the crutch 80. The fully closed position is regained.

In this closed position, the locking of the door to prevent it from sliding is often carried out by the motor in the case of a motorized door, or else by at least one other (vertical) lock not described here and conventional on a door manual sectional.

When the door is opened, all of the panels 8, including the gate 10, move away from the upright 12 of the door frame. As seen above, the bolt 42 is not locked in the fixed strike 70 and the movement can therefore be carried out. No action being performed on the latches 24, they remain in their housing and the intermediate part 34 remains integral with the gate 10 and moves with it. The mounting of the two latches 24 in opposition makes it possible to take up all the load (weight of the gate) and the carriage 38 then supports all this load.

When the door moves away, the bolts 57 are no longer resting on the fixed strike 70 and they then pass from their unlocked position to their locked position. Thus, the gate 10 remains integral with the carriage 38 and the gate 10 cannot pivot relative to the neighboring panel 8, even by actuating the crutch 80 and the latches 24.

In the low position, the vertical latch 96 escapes from the pad 92. The opening movement is not hampered.

When the door closes, the bolt 42 returns to be lodged in the fixed strike 70 and the locks 57 open while the vertical latch 96 returns to position behind the shoe 92. The fully closed position is regained.

• le verrouillage de la pièce intermédiaire 34 sur la gâche fixe 70 avec le pêne 42,
• le verrouillage de la pièce intermédiaire 34 sur le portillon 10 avec les loquets 24,
• le verrouillage de la pièce intermédiaire 34 sur le portillon à l'aide des verrous 57, et
• le verrouillage du bas du portillon 10 avec le verrou vertical 96.

The system offers four different locks here:

• the locking of the intermediate piece 34 on the fixed strike 70 with the bolt 42,
• the locking of the intermediate piece 34 on the gate 10 with the latches 24,
• the locking of the intermediate piece 34 on the gate using the locks 57, and
• locking the bottom of the gate 10 with the vertical latch 96.

The locking by means of the latches 24 and the vertical latch 96 is controlled by a user while the two other locks (bolt 42 and locks 57) are made according to the position of the gate 10.

The proposed locking system has a limited number of parts. It is easy to mount on a gate and thanks to the use of a control cable, the assembly and the adjustments to be made during the installation are greatly simplified compared to most of the systems of the known prior art.

Of course, the present invention is not limited to the preferred embodiment described above by way of nonlimiting example but extends to all the variants within the reach of a person skilled in the art within the scope of the claims above. -after.

Thus, for example, the locking of the intermediate piece is not necessarily a double locking. Locking in the down position is optional.

Claims (10)

1. Locking system for a sectional door gate comprising:

   - a carriage (38),

   - an intermediate part (34) connected to the carriage (38) so as to be moved with it, characterised in that said intermediate part (34) includes a projecting part forming a first bolt (42) and a housing having a stop surface (52, 54), and in that the locking system further includes:

   - a strike (70) complementarily shaped to the first bolt (42), having retaining means (74) suitable for the first bolt (42) and intended to be mounted in a fixed upright (12),

   - a second bolt (24) intended to be mounted on the sectional door gate, of a shape suitable for the housing of the intermediate part (34), mobile in this housing between a closing position, wherein it bears on the stop surface (52, 54) preventing the exit thereof outside of said housing and a release position, wherein said second bolt (24) avoids the stop surface (52, 54) and can exit from said housing, thus releasing the gate from the intermediate part (34),

   - a flexible element to make the second bolt (24) pass from the closing position thereof to the release position thereof, and

   - a system for releasing (64) the first bolt (42) with respect to the strike (70) actuated by a control part (68) carried by the intermediate part (34), the release system being able to engage with the retaining means (74) so as to release the first bolt (42) and the control part (68) acting on the release system (64) when the second bolt (24) goes back into the housing thereof in the intermediate part (34).
2. Locking system according to claim 1, characterised in that the intermediate part (34) includes a central wall (44) forming the bottom of the housing, in that the first bolt (42) is presented in the form of a stirrup with a base (58) extending substantially parallel to the central wall (44), said base (58) being connected to this central wall by two branches (60) of the stirrup, and in that the retaining means include two flexible strips (74), the base (58) and said flexible strips (74) being shaped such that when the first bolt (42) enters into the strike (70), the strips (74) are first displaced by the base (58) and can then come back to the idle position thereof by thus preventing a movement in the reverse direction of the first bolt (42).
3. Locking system according to claim 2, characterised in that the release system includes a zone (64) of substantially conical shape mounted sliding along a direction perpendicular to the base (58) and substantially parallel to the branches (60) of the stirrup so as to displace the flexible strips (74) from one another when said substantially conical zone (64) moves closer to the base (58), and in that the control part (68) is a part articulated about an axis parallel to the base (58), elastically prestressed to be projecting into the housing of the intermediate part (34), said part taking up a position substantially parallel to the central wall (44) when the second bolt (24) is in position in the housing thereof and bearing on the release system in this position.
4. Locking system according to one of claims 1 to 3, characterised in that the intermediate part (34) includes a central wall (44) separating the first bolt (42) from the housing of said intermediate part (34), the second bolt (24) being mounted pivoting about an axis (26) perpendicular to said central wall (44).
5. Locking system according to claim 4, characterised in that it includes two second bolts (24), both mounted pivoting about an axis (26) perpendicular to the central wall (44), the two bolts (24) being held to one another such that the pivoting of one in a direction leads to the pivoting of the other in the opposite direction.
6. Locking system according to one of claims 1 to 5, characterised in that it further includes a pulley (78) associated with a door closure control system stand (80), the pulley (78) being rotated with the stand (80), and in that the cable or similar connects the second bolt (24) to the pulley (78).
7. Locking system according to claim 6, characterised in that the pulley (78) rotated by the stand (80) is connected to another cable, the latter being connected to a lock (96) being moved in translation.
8. Locking system according to one of claims 1 to 7, characterised in that the intermediate part (34) includes a central wall (44) separating the first bolt (42) from the housing of said intermediate part, and in that a lock (57) is mounted sliding perpendicularly to said central wall (44).
9. Sectional door including:

   - several panels (8) articulated with one another, an end panel forming a gate (10),

   - a guide rail called upper rail (6),

   - an upright (12) perpendicular to the guide rail (6) and forming an abutment for the door, on the side of the gate (10), in the movement thereof along the guide rail (6),

   characterised in that it includes a locking system according to one of claims 1 to 8.
10. Sectional door according to claim 9, characterised in that the carriage (38) is mounted sliding in the guide rail (6),
    in that the strike (70) complementarily shaped to the first bolt (42) is positioned on the upright (12),
    in that the second bolt (24) is mounted on the gate (10),
    in that the intermediate part (34) is arranged between the strike (70) and the second bolt (24) in the closed position of the sectional door and of the gate (10),
    in that the release system (64) allows to disconnect the first bolt (42) from the strike (70), and in that the flexible element can act on the second bolt (24) to allow it to exit from the housing thereof in the intermediate part (34) and thus release the gate (10) from said intermediate part (34).

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