ADJUSTABLE LOCKING SYSTEM

Abstract

A locking system for a door (1) arranged in a wall separating a first room (2) from a second room (3), wherein the door (1) comprises a first (4) and a second side surface (5) designed to face the first (2) and second room (3), respectively, wherein the locking system comprises a first unit (17) designed to be attached to the first side surface (4) of the door (1), wherein the first unit (17) comprises a bolt (6) and actuating means (7, 8) designed to move the bolt (6) from an engagement position in which the bolt (6) is suitable to be held by the strike plate (10) mounted on the wall to prevent the door (1) from being opened, to a first release position in which the bolt (6) is not suitable to be held by the strike plate (10), wherein the bolt (6) extends in a first direction (D1) designed to be parallel to the plane of the door (1) to be arranged,to interact with the strike plate (10) in the engagement position over an engagement distance (d) along the first direction (D1), characterized in that the first unit (17) comprises adjusting means (9, 11, 15, 18) which are configured to vary the engagement distance (d) in order to allow the engagement distance (d) of the bolt (6) to be adapted to the positioning of the strike plate (10), and in that the adjusting means (9, 11, 15, 18) comprise a rack (11) which is movable in translation in the first direction (D1), which is connected at a first end to the bolt (6) and has at least three notches (15) which define at least two spaces, and a pinion (9) which has at least one tooth (18) which interacts with one of the at least two spaces, so that the engagement distance (d) can assume at least two different values, depending on thewhether the tooth (18) interacts with one or the other of the at least two interspaces.

Description

[0001] The present invention relates to a system for closing a door located in a wall separating two rooms. It is used, for example, for the secure closing of an access door to a cold storage room.

[0002] It is known to use locking systems for a door set in a wall separating two rooms, featuring a so-called "quarter-turn handle." According to this type of system, a bolt is designed to engage with a strike plate mounted on the wall and is itself mounted in a unit that is rotatable about an axis perpendicular to the plane of the door. When the handle is turned a quarter turn in any direction around this axis, the bolt is engaged with the strike plate, a position in which the door cannot be opened. Conversely, when the handle is turned a quarter turn in the opposite direction around this axis, the handle is released from the strike plate, allowing the door to be opened.

[0003] This type of locking system with a "quarter turn handle" is commonly used, for example, in the field of windows for residential buildings.

[0004] It is also known to use such locking systems for an access door to a cold storage room. However, cold storage rooms must comply with a certain number of rules and standards regarding their construction, which are intended in particular to ensure the safety of a user and to maintain the volume of the room at a low temperature.

[0005] Locking devices, such as the one described in FR 3 050 223, are also known. Such a device is based on a tilting mechanism of the lever handle type, wherein the handle is actuated by a movement away from the surface of the door on which the device is mounted.

[0006] From DE202016103122U1 a device for fastening windows or doors is also known, comprising a handle which is rotatably and axially fixed on a base plate, and which consists of a handle and a handle head on which a bolt is arranged which is oriented essentially at a right angle to the center line.

[0007] In all cases, the effectiveness of the lock depends primarily on the proper interaction between the bolt and the strike plate mounted on the wall. This, in turn, depends on the correct installation of the device on the door and / or the strike plate on the wall. This installation generally requires steps such as drilling. The slightest inaccuracy in the drilling position can lead to misalignment of one or the other component and make it impossible for the bolt to engage correctly with the strike plate.

[0008] The object of the invention is therefore to propose a closing device that is adapted to the requirements in connection with the safe closing of a cold storage chamber, that complies with the relevant safety regulations and at the same time remains simple and practical in use.

[0009] The invention thus relates to a locking system for a door arranged in a wall separating a first room from a second room, wherein the door comprises a first and a second side surface designed to face the first and second rooms respectively, wherein the locking system comprises a first unit configured to be attached to the first side surface of the door, wherein the first unit comprises a bolt and actuating means configured to move the bolt from an engagement position, in which the bolt is suitable to be held by the strike plate mounted on the wall to prevent the door from being opened, to a first release position, in which the bolt is not suitable to be held by the strike plate, wherein the bolt extends in a first direction (D1) designed to be parallel to the plane of the door.to interact with the strike plate in the engagement position over an engagement distance (d) along the first direction (D1), characterized in that the first unit comprises adjusting means which are configured to vary the engagement distance (d) in order to make it possible to adapt the engagement distance (d) of the bolt to the positioning of the strike plate.

[0010] Depending on certain design variations, the system also includes one or more of the following features, either separately or in all technically possible combinations.

[0011] According to one embodiment of the invention, the adjusting means comprise a rack movable in the first direction (D1) in translation, which is connected to the latch at a first end and has at least three notches defining at least two spaces, and a pinion which has at least one tooth that interacts with one of the at least two spaces, so that the engagement distance (d) can assume at least two different values ​​depending on whether the tooth interacts with one or the other of the at least two spaces.

[0012] According to a further embodiment of the invention, the pinion is rotatably mounted about a first axis and comprises several teeth, so that the rotation of the pinion about the first axis leads to the successive interaction of the teeth with the at least two spaces of the rack, the interaction now leading to the translation of the latch in the first direction (D1).

[0013] According to yet another embodiment of the invention, the actuating means comprise first actuating means which are movable in translation in the direction of a second axis perpendicular to the first direction (D1) and are arranged to control the rotation of the pinion.

[0014] According to yet another embodiment of the invention, the pinion comprises an arm configured to interact with the first actuating means in order to enable the rotary drive of the pinion about the first axis by means of the arm, through translation of the first actuating means along the second axis. According to one embodiment of the invention, the first unit comprises a plate on which a stop is mounted, wherein the rack is movably mounted on the plate in direction (D1) up to the stop, and wherein the first unit comprises a sleeve into which the latch is inserted.

[0015] According to a further embodiment of the invention, the actuating means comprise second actuating means which are rotatably mounted about the second axis, which is intended to be positioned perpendicular to the plane of the door, wherein the second actuating means are arranged to bring the bolt from the engagement position to a second release position, which differs from the first release position, by rotating it about the second axis, in which the bolt is not suitable to be held in the strike plate.

[0016] According to yet another embodiment of the invention, the system comprises a second unit which is arranged to be attached to the second side surface of the door, wherein the second unit comprises third actuating means which are rotatable about the second axis and are connected to the second actuating means by a rod through which the second axis passes and which is designed to pass through the door, such that the rotation of the second or third actuating means about the second axis results in the rotation of the third or second actuating means about the second axis.

[0017] According to yet another embodiment of the invention, the second and possibly third actuating means comprise a base centered about the second axis and a handle extending substantially from the corresponding base, the handle being designed to be oriented substantially in a plane parallel to the plane of the door.

[0018] According to yet another embodiment of the invention, the first actuating means have an actuating surface by means of pressure in the direction of the second axis, and the second actuating means have at least one gripping surface which is intended to be grasped by a user for rotation about the second axis, wherein the actuating surface and the gripping surface are arranged to be in extension to each other.

[0019] The system according to the invention thus enables a secure closure, which is particularly well-suited to the requirements associated with closing a cold storage room, being safe, simple, and practical to use. In particular, the system according to the invention allows the engagement position of the bolt with the strike plate in the wall to be adjusted, which simplifies its installation. Even in the event of an offset caused by the installation, for example, due to inaccuracies in a hole for attaching the first unit to the door, the installer can ensure a reliable closure by adjusting the engagement position of the bolt with the strike plate to compensate for the offset.

[0020] The features and advantages of the invention will become apparent from the study in the following description, which is only given as a non-limiting example with reference to the following accompanying figures: [ Fig. 1]: schematic representation of a locking system according to the invention; [ Fig. 2]: schematic representation of an example of a locking device according to the invention, which is attached to a door, and viewed from the side of a first side surface of the door; [ Fig. 3]: schematic representation of the example from Fig. 2, attached to a door and seen in profile.

[0021] The system according to the invention thus enables the opening and closing of a door. 1 , which is provided in a wall that forms a first room 2 from a second room 3 separates, as in the Fig. 2 and Fig. 3 shown.

[0022] The door 1includes a first side surface 4 opposite the first room 2 and a second side surface 5 opposite the second room 3 .

[0023] The locking system comprises a first unit 17 , which is set up to be on the first side surface 4 the door 1 on the side of the first room 2 , which typically represents the interior of a cold storage room, to be attached.

[0024] As will be seen later, the system also includes, and preferably includes, a second unit. 12 , which is set up to be on the second side surface 5 the door 1 on the side of the second room 3 , typically to be attached outside of a cold storage room.

[0025] As can be seen in the figures, the first unit comprises 17 a bar 6 and operating devices 7 , 8These operating devices are listed and set up in detail later to operate the bolt. 6 to move from an intervention position to a first release position.

[0026] In the intervention position, such as in Fig. The bar shown in 1 is 6 suitable, from a strike plate 10 , which is mounted on the wall, to be held in order to prevent the door from opening 1 to prevent.

[0027] In the first release position (not shown in the figures) the bolt 6 not suitable, this strike plate 10 to be held in order to open the door 1 to allow.

[0028] The bar 6 extends in a first direction (D1) which is intended to be parallel to the plane of the door 1 to be positioned (see Fig. 1 and Fig. 2) to use the strike plate 10to cooperate in the intervention position over an intervention distance d along this first direction (D1).

[0029] Furthermore, the unit includes 17 Adjustment tools 9 , 11 , 15 , 18 , which will be described in detail later. These adjustment tools 9 , 11 , 15 , 18 are set up to allow the engagement distance d to be varied, to allow the engagement distance d of the bolt to be varied. 6 to the positioning of the strike plate 10 to adapt. As more precisely in the in Fig. As can be seen in the illustrated embodiment 1, the adjusting means include 9 , 11 , 15 , 18 a rack 11 and a sprocket 9 .

[0030] The rack 11 It is movable in translation in the direction (D1). It is connected at one end to the bar. 6connected and bears at least three notches 15 , which are distributed along the direction (Dl) and define at least two gaps. More generally, the rack carries 11 n notches 15 , where n is an integer greater than or equal to 3, where n-1 spaces between two notches are defined.

[0031] The pinion 9 has at least one tooth 18 , which interacts with at least one of the two interspaces. In this way, the intervention distance d can assume at least two different values, depending on whether the tooth 18 with one or the other of the at least two gaps. This allows for the assembly of the system, and especially the first unit. 17 It will be selected whether the tooth 18 of the pinion 9 in one or the other of the spaces between the notches 15 is positioned in defined spaces, with the rack 11is moved in a sliding manner, so that the selected gap between two notches 15 with the tooth 18 This allows the Riebel to interact in its fixed starting position. This causes the Riebel to... 6 more or less from the unit 17 protrudes in the direction of (D1), and thus the distance d of the interaction between the bar 6 and the strike plate 10 is varied.

[0032] Preferably, the pinion includes 9 several teeth 18 (the spaces) 33 between two consecutive teeth 18 form) and is about a first axis 16 Mounted so that it can rotate. In the Fig. The example shown includes the pinion gear. 9 a partially circular section that curves around the first axis 16 mounted in a rotatable manner and with several teeth on all or part of its periphery. 18 is provided.

[0033] Thus, the rotation of the pinion leads to 9 around the first axis 16 for the sequential interaction of the teeth 18 with at least two spaces between notches 15 the rack 11 This interaction in turn leads to the translation of the bar. 6 in the first direction (D1).

[0034] The means of operation 7 , 8 include initial means of operation 8 , which in the direction of a second axis 23 These first actuating means are movable perpendicular to the first direction (D1) in translation. 8 are set up to control the rotation of the pinion 9 around the first axis 16 to control.

[0035] The pinion 9 Thus, it plays a role as a means of propulsion. 9 of the bar 6 in translation in the direction (D1) under the action of the first actuating means 8More precisely, the pinion includes 9 , as in Fig. As can be seen, one arm 22 , which has a partially circular section of the pinion 9 is connected, on which the teeth 18 are distributed. This arm 22 is set up to use the first means of operation 8 to cooperate in order to translate these first means of operation 8 along the second axis 23 the rotary drive of the pinion 9 around the first axis 16 through the mediation of the arm 22 to enable. A pressure on the first actuating means. 8 This shifts these initial means of operation. 8 in translation in the direction of the axis 23 The first means of operation 8 Now press on the arm 22 , which in turn the pinion 9 in rotation around the first axis 16 drives. In which in Fig. The first unit in the example shown comprises... 17 a circuit board 19 , on which an attack 20 is mounted. The rack 11 is on this circuit board 19 in the direction (D1) until the stop 20 in translation, it is mounted in a movable manner, which allows it to move from the in Fig. 1 shown engagement position, in which the bolt 6 from the first unit 17 to determine the engagement distance d with the strike plate 10 protrudes, to slide into the first maximum release position, in which the rack 11 possibly to the limit 20 (depending on the translation path of the actuating means) 8 and the characteristics of the pinion 9 , especially of the arm 22 and the number of teeth 18 It may also be provided that the first unit 17 a sleeve 21 includes, into which the bar 6is used, and in which the latter can slide to allow the translation of the bar. 6 to steer correctly in the direction (D1).

[0036] Returning means (not shown), such as one or more springs, preferably made of steel, may be provided, which are arranged to return the latch. 6 to facilitate from the first release position to the engagement position, either on the rack 11 or onto the sprocket 9 (for example, through the mediation of his arm) 22 ) is affected.

[0037] Moreover, there are second means of operation. 7 , which here is a handle 7 are equated to the second axis 23 mounted in a rotatable manner, intended to be perpendicular to the plane of the door 1 to be positioned. These second means of operation 7 are set up to lock the bar 6from the engagement position to a second release position by rotation around the second axis 23 to bring this second release position, in which the bar 6 is not suitable, from the strike plate 10 Being held differs from the first release position.

[0038] The transition of the bar 6 from the intervention position ( Fig. 1) Moving to the second release position (not shown) is therefore achieved by rotating the actuating means. 7 around the second axis 23 , which rotates the circuit board 19 and in turn the rotation of the bolt 6 controls.

[0039] Typically, the rotation of the second actuating means leads to 7 a quarter turn, indicated by the arrow ( R ) in Fig. 2 is shown, for rotating the bolt. 6 , which is formed from the strike plate 10releases, essentially returning to the same position as the second actuating means. 7 to be located before the rotation, the latter now essentially connected to the strike plate 10 are aligned.

[0040] As can be seen in the figures, and as mentioned above, there is a second unit 12 provided, which is set up to be on the second side surface 5 the door 1 to be attached.

[0041] This second unit 12 includes third means of operation 13 , which have a handle 13 in the examples shown in the figures (especially Fig. 2 and Fig. 3) are equated and belong to the second means of operation 7 in relation to the door 1 are symmetrical. The third actuation means 13 are therefore around the second axis 23 rotatable and with the second actuating means 7through a pole 14 , preferably made of steel, connected, through which the second axis 23 runs, and is intended to go through the door 1 to go through.

[0042] Thus, the rotation of the second actuating means leads to 7 around the second axis 23 for rotating the third actuating means 13 around this second axis 23 and vice versa.

[0043] In the examples shown in the figures, the first and third actuating means include 7 and 13 a base that is centered around the second axis 23 is centered, and has a handle that extends essentially from the corresponding base. For simplicity, the base-handle unit is each of the first and third actuating devices. 7 and 13 the first or third means of operation 7 and 13They are equated with themselves. Also for the sake of simplicity, the reference symbols denote... 7 and 13 both the first and third means of operation 7 and 13 as well as the handles 7 and 13 himself.

[0044] For each of the first and third means of operation 7 and 13 is the corresponding handle 7 , 13 intended to be located essentially in a plane parallel to the plane of the door 1 to be aligned.

[0045] In the example shown in the figures, the first actuating means 8 an actuating surface by pressure in the direction of the second axis 23 moreover, the second actuating devices 7 at least one gripping surface designed to be used by a user to rotate around the second axis 23 to be recorded. The operating area of ​​the first actuating means. 8and the gripping surface of the second actuating means 7 are designed to be arranged in line with each other. In this example, the first actuating devices take 8 thus the shape of a snap fastener 8 , preferably made of polymer, which forms the unit of base and handle 7 the second means of operation 7 , also preferably made of polymer, is integrated.

[0046] Of course, the present description is given as an example and does not limit the invention. In particular, the exact shape of the first, second, and third actuating means is not affected. 7 , 8 and 13 The notches, as depicted in the figures, are not limiting to the invention. Likewise, the number and distribution of the notches are not limiting. 15 on the rack 11 and the teeth 18 on the sprocket 9 not limiting the invention. A single tooth 18, which has a single gap between two notches 15 working together, may be sufficient to translate the bar. 6 to achieve in the direction (D1).

[0047] Even three notches are sufficient. 15 to define two different gaps between two successive notches, which allow the rack to be 11 two different positions for a given position of the tooth 18 to allow for the taking of two different values ​​for the engagement distance d of the bar. 6 to obtain.

[0048] Furthermore, the invention is not limited to a system with actuating means. 7 of the type “quarter turn handle” or operating devices 8 of the push-button type. The invention relates to the adjustment of the engagement position of the latch. 6 into the strike plate 10 regardless of the means of operation.

[0049] In the embodiments described above and illustrated in the figures, the system according to the invention thus makes it possible, even if the bolt 6 not in the direction (D1) during the function of the door 1 The built-in system is movable, thus from the first actuating means. 8 , as described above, is not operable, but simply rotates around the second axis 23 is rotatable, and by means of a second actuating device 7 , as described above (actuation of the "quarter turn" type), can be actuated, ensuring effective and functional engagement of the bolt. 6 into the strike plate 10 , where the position of the rack 11 , thus the value of the intervention distance d is adjusted. QUOTES INCLUDED IN THE DESCRIPTION

[0000] This list of documents cited by the applicant was automatically generated and is included solely for the reader's convenience. The list is not part of the German patent or utility model application. The DPMA accepts no liability for any errors or omissions. Cited patent literature

[0000] FR 3050223

[0005] DE 202016103122 U1

[0006]

Claims

[1] Locking system of a door (1) arranged in a wall separating a first room (2) from a second room (3), the door (1) comprising a first (4) and a second lateral surface (5) intended to face the first (2) and second lateral surfaces (3) respectively.facing the second space (3), the locking system comprising a first unit (17) designed to be fixed to the first lateral surface (4) of the door (1), the first unit (17) comprising a bolt (6) and actuating means (7, 8) designed to move the bolt (6) from an engaged position, in which the bolt (6) is suitable to be held by the wall-mounted striker plate (10) to prevent the door (1) from opening, to a first release position, in which the bolt (6) is not suitable to be held by the striker plate (10), the bolt (6) extending in a first direction (D1) designed to be parallel to the plane of the door (1) in order to cooperate with the striker plate (10) in the engaged position over an engaging distance (d) along the first direction (D1). characterized byin that the first unit (17) comprises adjustment means (9, 11, 15, 18) designed to vary the engagement distance (d) in order to make it possible to adapt the engagement distance (d) of the bolt (6) to the positioning of the strike plate (10), and in that the adjustment means (9, 11, 15, 18) comprise a rack (11) movable in translation in the first direction (D1), which is connected at a first end to the bolt (6) and carries at least three notches (15) defining at least two spaces, and a pinion (9) carrying at least one tooth (18) cooperating with one of the at least two spaces, so that the engagement distance (d) can assume at least two different values, depending on whether the tooth (18) cooperates with one or the other of the at least two spaces. [2] System according to claim 1, characterized byin that the pinion (9) is mounted to rotate about a first axis (16) and comprises a plurality of teeth (18), so that the rotation of the pinion (9) about the first axis (16) leads to the successive interaction of the teeth (18) with the at least two spaces of the rack (11), the interaction leading to the translation of the bolt (6) in the first direction (D1). [3] System according to claim 2, characterized by in that the actuating means (7, 8) comprise first actuating means (8) mounted to be movable in translation in the direction of the second axis (23) perpendicular to the first direction (D1) and arranged to control the rotation of the pinion (9). [4] System according to claim 3, characterized byin that the pinion (9) comprises an arm (22) which is designed to cooperate with the first actuating means (8) in order to enable the pinion (9) to be driven in rotation about the first axis (16) by means of the arm (22) by translation of the first actuating means (8) along the second axis (23). [5] System according to one of claims 1 to 4, characterized by in that the first unit (17) comprises a plate (19) on which a stop (20) is mounted, the rack (11) being mounted on the plate (19) so as to be movable in translation in the direction (D1) up to the stop (20). [6] System according to one of claims 4 and 5, characterized by that the first unit (17) comprises a sleeve (21) into which the bolt (6) is inserted. [7] System according to one of claims 1 to 6, characterized byin that the actuating means (7, 8) comprise second actuating means (7) mounted to rotate about the second axis (23) intended to be positioned perpendicular to the plane of the door (1), the second actuating means (7) being arranged to bring the bolt (6) by rotation about the second axis (23) from the engaged position to a second release position, different from the first release position, in which the bolt (6) is not suitable to be held by the strike plate (10). [8] System according to claim 7, characterized byin that it comprises a second unit (12) designed to be fixed to the second lateral surface (5) of the door (1), the second unit (12) comprising third actuating means (13) which are movable in rotation about the second axis (23) and are connected to the second actuating means (7) by a rod (14) through which the second axis (23) passes and which is intended to traverse the door (1), so that the rotation of the second (7) and third (13) actuating means, respectively, about the second axis (23), results in the rotation of the third (13) and second (7) actuating means, respectively, about the second axis (23). [9] System according to one of claims 7 and 8, characterized byin that the second (7) and possibly third (13) actuating means comprise a base centered around the second axis (23) and a handle (7, 13) extending substantially from the corresponding base, the handle (7, 13) being intended to be oriented substantially in a plane parallel to the plane of the door (1). [10] System according to one of claims 7 to 9, characterized by in that the first actuating means (8) have an actuating surface by pressure in the direction of the second axis (23), and in that the second actuating means (7) have at least one gripping surface intended to be grasped by a user for rotation about the second axis (23), the actuating surface and the gripping surface being arranged to be arranged in the extension of one another.

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