Device for controlling opening for a door of a motor vehicle

Abstract

Opening control device (10) for a door (2) of a motor vehicle (1) comprising a support (11) and a retaining member (20) for a lock (6), the retaining member comprising a ring (30) and a slide (40), the support (11) being provided with a first opening (O1) arranged around a main axis (X1) intended to house a lock (6), the ring (30) of the retaining member (20) being movable in rotation relative to the support (11) about said main axis (X1) between a first position in which a lock (6) is free to be inserted through the first opening (O1) and a second position in which a lock (6) previously inserted through the first opening (O1) is locked in position, the slide (40) being linked to the ring (30) by means of a sliding connection.

Description

Technical field of the invention

[0001] The invention relates to an opening control device for a motor vehicle door. The invention also relates to a locking system comprising such an opening control device. The invention further relates to a motor vehicle comprising such an opening control device and / or such a locking system. Finally, the invention relates to a method for assembling such an opening control device to a motor vehicle door. Prior art

[0002] Motor vehicles, and commercial vehicles in particular, are generally equipped with a door locking system comprising an opening control device and a lock connected to the opening control device by a rod or cable. The opening control device includes a bracket, or module, through which it is attached to a door element such as a sheet metal panel. The opening control device also includes an operating handle hinged to the bracket and accommodates a bolt in an opening in the bracket. The operating handle and the bolt are mechanically connected to the lock via the rod or cable. The bolt can be used in conjunction with a key to activate, or deactivate, the effect of moving the operating handle on the lock.

[0003] Such locking systems offer insufficient security. In particular, thieves can manipulate the lock integrated into the opening mechanism using various tools, such as screwdrivers. By manipulating the lock, forces are transmitted to the rod through which the opening mechanism is attached to the door. When the rod reaches a sufficient range of motion, the lock can be activated and the door opened. Such a break-in can be accomplished in a very short time.

[0004] Furthermore, even locking systems known from the prior art can have quality defects. Repeated operation of the operating handle and / or the lock, as well as vehicle vibrations, can lead to the loss of parts and thus to a malfunction of the locking system.

[0005] Finally, existing locking systems with integrated locks are complex to assemble inside a vehicle door. The necessary installation steps are sometimes performed incompletely. In particular, the operation of attaching the lock to the opening control mechanism is sometimes incomplete. When this occurs, the locking system can be forced open even more quickly by a thief.

[0006] Document FR 2 996 872 A1 shows a device according to the preamble of claim 1. Presentation of the invention

[0007] The object of the invention is to provide an opening control device that remedies the above disadvantages and improves upon the opening control devices known in the prior art.

[0008] More specifically, a first object of the invention is an opening control device that is particularly resistant to break-in attempts.

[0009] A second object of the invention is a robust and durable opening control device.

[0010] A third object of the invention is an opening control device which is easy and reliable to mount on a vehicle door element. Summary of the invention

[0011] The invention relates to an opening control device for a door of a motor vehicle comprising a support and a retaining member for a lock, the retaining member comprising a ring and a slide, the support being provided with a first opening arranged around a main axis, the first opening being intended to house a lock, the ring of the retaining member being movable in rotation relative to the support around said main axis between a first position and a second position, the first position being a position in which a lock is free to be inserted through the first opening, the second position being a position in which a lock previously inserted through the first opening is locked in position, the slide being linked to the ring by a sliding connection, the slide being intended to be fixed rigidly to a door element when the ring is in its second position.

[0012] The slider may include an opening, in particular a threaded one, extending substantially parallel to a sliding axis of the slider and intended to cooperate with a fastening means, in particular a screw, passing through a field of the door of a motor vehicle.

[0013] A sliding axis of the slider relative to the ring can be substantially perpendicular to said main axis.

[0014] The ring may include a central part having a second opening arranged around the main axis, and an appendage extending radially from the central part, the appendage supporting the slide.

[0015] The said appendage may include a guide rail and the slider may include a groove cooperating with the guide rail to form said sliding connection.

[0016] The appendage may include a bearing surface oriented such that a support on the bearing surface tends to rotate the ring relative to the support from its first position to its second position.

[0017] The support may include a first stop means and the ring may include a second stop means, said first position of the ring being defined by a bearing of the first stop means against the second stop means, and / or the support may include a third stop means and the ring may include a fourth stop means, said second position of the ring being defined by a bearing of the third stop means against the fourth stop means.

[0018] The ring may include a projecting element intended to face a door element, the projecting element being arranged so as to come into contact with the door element when the control device is nodded.

[0019] The opening control device may include an articulated actuating handle on the support.

[0020] The invention also relates to a locking system comprising an opening control device as defined above and a lock, the lock being held through the first opening.

[0021] The locking system may include a beater and a rod support, the beater being fixed to the lock, the rod support being fixed to the beater.

[0022] The locking system may include a lock and a rod, the bolt being mechanically connected to the lock by means of the rod, and / or the locking system may include a lock and a cable, the bolt being mechanically connected to the lock by means of the cable.

[0023] The invention also relates to a motor vehicle comprising an opening control device as defined above and / or a locking system as defined above.

[0024] The invention also relates to a method for assembling an opening control device to a door element of a motor vehicle comprising: a step of supplying a door element, a lock, and an opening control device as defined above, the ring being in its first position, a step of positioning the opening control device against a first face of the door element, a step of inserting a lock through the first opening, a step of rotating said ring relative to the support to its second position, a step of moving the slide along said sliding connection, and a step of fixing the slide to the door element, in particular with a fixing means passing through a field of the door element. Presentation of the figures

[0025] These objects, features and advantages of the present invention will be described in detail in the following description of a particular embodiment, given by way of non-limiting example, with reference to the accompanying figures, among which: [ Fig. 1 ] There figure 1 is a schematic view of a motor vehicle according to one embodiment of the invention. Fig. 2 ] There figure 2 is a front view of an opening control device according to an embodiment of the invention, a ring of the opening control device being in a first position. Fig. 3 ] There figure 3 is a front view of the opening control device, with the ring in a second position and a slider of the opening control device in a first position. Fig. 4 ] There figure 4 is a front view of the opening control device, with the ring in the second position and the slider in a second position, translated against a field of a door element. Detailed description

[0026] There figure 1This schematically illustrates a motor vehicle 1 equipped with a door 2 and a door locking system 3 according to an embodiment of the invention. The vehicle 1 can be of any type. In particular, it can be, for example, a passenger car, a commercial vehicle, a truck, or a bus. The door 2, or opening 2, is an element that allows access to the interior of the vehicle 1, in particular to a cargo area or a passenger compartment, to be opened or closed. The door 2 comprises a door element, in particular a panel 4 extending in a principal plane. This panel 4 can be hinged for rotation relative to a body of the vehicle, for example, via hinges 5. It preferably comprises a cut and shaped sheet metal plate. The door element can be, for example, a body panel of the vehicle and / or a box forming a rigid structure for the door.

[0027] In this document, the X-axis designates the longitudinal axis of a vehicle. When moving forward in a straight line, the vehicle progresses from rear to front in a direction parallel to its longitudinal X-axis. The X-axis is oriented from the front to the rear of the vehicle, that is, in the direction of reverse. The Y-axis designates the transverse axis of the vehicle. The Y-axis is oriented from left to right, with left and right defined from the perspective of a driver of the vehicle. The Z-axis designates the axis perpendicular to the X-axis and the Y-axis. The Z-axis is a vertical axis when the vehicle is on a horizontal surface. The Z-axis is oriented from bottom to top. The X, Y, and Z axes form an orthogonal coordinate system. This same coordinate system, defined with reference to a vehicle, will also be used for a locking system or an opening control device, even when considered outside of a vehicle, since they are intended for mounting in a specific orientation on a vehicle.Furthermore, vehicle 1 is assumed to be resting on a horizontal surface.

[0028] According to the embodiment presented, door 2 is a rear door of a utility vehicle. The door is hinged about an axis parallel to the vertical axis Z. Alternatively, door 2 could be any opening of a vehicle susceptible to break-ins, for example, a side door. Door 2 could also be a sliding door.

[0029] The locking system 3 comprises an opening control device 10, a bolt 6, a lock 7, and a rod 8. The lock 7 is fixed to the panel 4 of the door 2. It includes a bolt cooperating with a strike plate 9 attached to the body or to a second door of the vehicle to lock the door 2 in the closed position. The rod 8 may be a long element, possibly locally bent, extending mainly parallel to the vertical axis Z. It is suitable for transmitting to the lock 7 a movement exerted by the bolt 6. Alternatively, the rod 8 could be replaced by a cable. The opening control device 10 is mechanically connected to the lock via the bolt 6 and the rod 8. The lock 7 and the opening control device are therefore two separate components of the door. According to the embodiment shown in the figure 1, the lock 7 is positioned vertically above the opening control device 10 but alternatively it could be positioned in any other location on the door 2.

[0030] The opening control device 10 comprises a support 11, an operating handle 13, and a locking retainer 20. The control device is illustrated in the figures 2 , 3 and 4It is represented in a plane parallel to the transverse axis Y and the vertical axis Z, viewed from inside the vehicle outwards. Panel 4, which extends perpendicularly to the longitudinal axis X, is hidden. Only a lateral field C1 of the panel is visible. Field C1 defines the edge of the panel along which the opening control device 10 is located. Field C1 extends in a plane substantially perpendicular to the main plane in which the panel extends. In this case, field C1 extends in a plane perpendicular to the transverse axis Y. Field C1 can, for example, be formed by a fold at approximately 90° to a lateral edge of panel 4.

[0031] The support 11, or "module 11", is an element fixed to the panel 4 of the door 2. It may comprise a body, advantageously made of plastic, in which means are provided for connecting to the panel 4. These means of connection may be, for example, clips and / or openings. These openings, possibly threaded, may be intended to cooperate with fasteners such as screws or even rivets. The support 11 notably supports the lock 6 and the operating handle 13. It includes, in particular, means for articulating the operating handle 13. It may also include mechanical means for connecting the operating handle 13 to the lock. The support 11 may also include return means for bringing the operating handle 13 back into a retracted position after it has been operated. The rotation of the retaining member 20 locks the lock (mounted externally) and completes the securing of the assembly to the panel 4.

[0032] The support 11 includes a first opening O1 arranged around a principal axis X1, parallel to the longitudinal axis X. The retaining member 20 includes a second opening O2 arranged around said principal axis X1. The openings O1 and O2 may have at least a roughly circular shape. The openings O1 and O2 are concentric, that is to say, their centers coincide along a projection parallel to the longitudinal axis X.

[0033] The retaining member 20 is positioned forward relative to the support 11. It is therefore connected to the door panel 4 via the support 11. The retaining member 20 comprises a ring 30 and a slide 40. The ring 30 is rotationally articulated relative to the support 11 around the main axis X1. The second opening O2 is formed in the ring 30. The ring 30 is rotationally movable relative to the support 11 between a first position (illustrated in the figure 2) and a second position (illustrated on the figures 3 and 4 ).

[0034] The first position is a position in which the lock 6 is free to be inserted through the first opening O1 and the second opening O2. The second position of the ring is a position in which the lock 6, previously inserted through the first opening O1 and the second opening O2, is locked in position.

[0035] The first position of the ring can be distinct from the second position of the ring by an angle between 5° and 120°, in particular between 10° and 60°. In particular, about one-eighth of a turn, that is to say about 45°, can separate the first position from the second position of the ring.

[0036] The ring and / or the support may include retaining means configured to retain the ring relative to the support along the longitudinal axis X when the ring is in its first and / or second position. Thus, the opening control device 10 can be made available as a single unit in the workshop where it is intended to be assembled to the door element.

[0037] The rotation of the ring relative to the support between its first and second position may possibly be accompanied by a translational movement of the ring along the longitudinal axis X, in particular thanks to ramps provided at an interface between the support and the ring.

[0038] The lock, or cylinder, is housed inside the first opening O1 and the second opening O2. It itself includes an opening for a key extending substantially along the main axis X1.

[0039] On the one hand, panel 4 includes a third opening coinciding with the first opening O1 and the second opening O2. On the other hand, panel 4 may include a fourth opening through which all or part of the operating handle and / or the articulation means of the operating handle pass. The third and fourth openings may optionally form a single opening.

[0040] The opening control device 10 differs from a so-called "full-skin lock" in which the lock is fixed directly through the door panel 4, independently of the opening control. In the present invention, the lock is fixed to the door via a bracket that combines several functions, including supporting an operating handle. This design allows for easy assembly of the locking system to the door in a limited number of steps.

[0041] The operating handle 13 can be articulated relative to the support via a rotational joint around an axis Z1 parallel to the vertical axis Z, i.e., an axis parallel to the axis around which the door pivots. Thus, a pulling motion on the operating handle 13 engages both the mechanism linking the handle to the lock to unlock the lock and contributes to the force required to move the door from its closed to its open position. Such an operating handle, known as a "refrigerator-type" handle, therefore allows for efficient and rapid opening of the door.

[0042] The slide 40 is connected to the ring by a sliding joint parallel to a sliding axis A1. The slide is movable between a first position (illustrated on the figure 3 ) and a second position (illustrated on the figure 4). When in its second position, the slide 40 is abutted against the field C1. The sliding axis A1 is substantially perpendicular to the principal axis X1. In other words, the sliding axis A1 extends in a plane parallel to the transverse axis Y and the vertical axis Z, regardless of the position of the ring 30. As illustrated in the figure 2 When the ring is in its first position, the sliding axis A1 can form an angle of approximately 45° with the transverse axis Y and with the vertical axis Z. As illustrated in the figure 3 When the ring is in its second position, the sliding axis A1 can be substantially parallel to the transverse axis Y, that is, perpendicular to the plane in which the field C1 extends. The slider 40 can slide relative to the ring 30 independently of the position of the latter.

[0043] The rotation of the ring 30 between its first and second positions and the translational movement of the slide 40 occur only during the assembly of the door opening control device on the vehicle door, specifically when the module 11 is already mounted on the door. The slide is intended to be fixed securely to a door element when the ring is in its second position. In particular, the slide 40 includes a threaded opening 41 extending substantially parallel to the sliding axis A1. As illustrated in the figure 4The opening 41 cooperates with a screw 42 passing through an opening made through a panel C1 of the door to lock the slide. During vehicle use, the ring and the slide therefore remain fixed in position relative to the door. Alternatively, the slide could be fixed to panel C1 of the door by a fastening method other than a screw, such as a rivet or any other fastening method passing through panel C1 of the door.

[0044] The ring 30 comprises a central portion 31, at least roughly cylindrical in shape, in which the second opening O2 is arranged. The ring 30 also comprises an appendage 32 extending radially from the central portion 31. Advantageously, the central portion 31 and the appendage 32 form a single piece. The appendage 32 supports the slide 40. More specifically, the appendage 32 comprises a guide rail 33, and the slide comprises a groove 43 with a shape complementary to that of the guide rail 33 so as to form the sliding connection. The guide rail may incorporate a means for retaining the slide along the longitudinal axis X. In particular, this retaining means may be formed by a T-shaped or mushroom-shaped section of the guide rail.

[0045] The guide rail can be arranged on one face of the appendage 32 facing the front of the vehicle. According to an alternative embodiment, the slider could also be arranged on another face of the appendage, or even be arranged inside a housing formed in the appendage.

[0046] The ring 30 includes a pusher 34 having a bearing surface for rotating the ring from its first position to its second position. The pusher 34 extends substantially radially from the central portion 31. The pusher 34 can extend from the central portion 31 in a direction substantially opposite to the direction in which the appendage 32 extends. It may include at its end 35 a blind cavity, for example in the form of a half-shell, for receiving the tip of a tool. A tool bearing against the end 35 exerts a force parallel to the arrow F1, which tends to rotate the ring towards its second position. Alternatively, the ring 30 might not include such a pusher. The appendage 32 advantageously includes a second bearing surface 36, a support on the second bearing surface (oriented from right to left according to the point of view of the figure 3) tending to rotate the ring relative to the support from its first position to its second position. The appendage therefore fulfills a dual function: supporting the slide 40 and providing a bearing surface for rotating the ring relative to the support 11.

[0047] The first and / or second position of the ring 30 can be defined by conjugate stop means B1, B2, B3, B4 arranged respectively on the ring and on the support. Stop means B1 can cooperate with stop means B2 to define the first position of the ring. Stop means B3 can cooperate with stop means B4 to define the second position of the ring. Stop means B2 and B4 can be provided on the pusher 34 as shown in the figure. figure 2 , or alternatively, be integrated into any other part of the ring. The stop means B1 and B3 can be integrated into the body of the support.

[0048] The range of movement of the slide can be limited by combined stop means B5, B6, B7, and B8 arranged respectively on the slide and the ring. Stop means B5 can cooperate with stop means B6 to define the first position of the slide, which can be a first extreme position of the slide. Stop means B7 can cooperate with stop means B8 to define a second extreme position of the slide. Note that when the slide 40 is fixed against the edge C1 of the panel, it adopts an intermediate position between the two extreme positions of the slide. The stop means B5, B6, B7, and B8 prevent accidental separation of the slide and the ring prior to their assembly on a door.

[0049] The support 11 and / or the ring 30 may include a fastening interface for holding the latch 6 in position. This fastening interface may be formed at the edges of the first opening O1 and / or the second opening O2. In particular, the ring 30 and / or the support 20 may include notches 37 extending substantially radially with respect to said main axis. These notches may cooperate with an outer contour of the latch 6 to hold it in position. The notches formed in the ring 30 are particularly clearly visible on the figure 2 Each notch 37 is associated with an annular profile ramp having a cross-section that varies in thickness. Each notch 37 is designed to cooperate with an associated lug of the lock 6. During the assembly operation of the support 11 to the door panel 4, each lug of the lock 6 is moved along a ramp against which it slides in order to tighten the lock.

[0050] The lock 6 includes an inner portion that can be pivoted about the main axis X1. This inner portion is attached to a beater 14, which is part of the locking system 3. The beater 14 may be in the form of a plate to the end of which the rod support 15 is connected. The rod support 15 is attached to the beater 14 by means of a pivot joint. Thus, the rod remains substantially aligned parallel to the vertical axis Z when the beater pivots about the main axis X1.

[0051] In addition, the ring 30 may include a projecting element (not visible in the figures) designed to face the panel 4. The projecting element is arranged so that, when the opening control device is moved via the lock, the projecting element comes into contact with an inner face of the panel 4. Such movement could be, for example, an alternating bending motion using a screwdriver whose tip is inserted into the lock. The projecting element could, for example, be in the form of a rib. It could extend parallel to the longitudinal axis X from the appendage 32 on a face of the appendage opposite the face on which the slide 40 is mounted, i.e., a face of the appendage facing the panel 4. Thus, during an attempted break-in of the vehicle, the panel can be scratched or marked by the pressure of the projecting element. These scratches or marks then provide evidence of the attempted break-in.Furthermore, the support of the protruding element provides additional support for the opening control device on panel 4, which further limits the range of movement for a given alternating bending force.

[0052] In the preceding description, the opening control device is equipped with a lock. Alternatively, the lock may be absent or replaced by a dummy lock. This design allows, in particular, the same opening control device to be used on a door without a lock, such as a passenger door—for example, a door on the side opposite the driver or behind the driver.

[0053] To assemble the opening control device to a door element of the motor vehicle, the following procedure can be used. First, a door element is provided. The door element includes, in particular, the panel 4 with the third opening. The opening control device 10 and the lock 6 are also provided. Advantageously, the opening control device 10 is in the form of a module whose elements are held together. In particular, the ring 30 is fixed to the support 11 and is in its first position.

[0054] The process then involves positioning the opening control device against one face of the door element. The support is positioned against an inner face of the panel. It can be fixed to the panel using, for example, fixing clips and / or screws and / or rivets.

[0055] Next, the process includes a step of inserting the lock through the first opening, the second opening, and the third opening. Specifically, the lock can be inserted lengthwise from the back to the front.

[0056] Next, when the lock is in place, the process includes a ring rotation step relative to the support until it reaches its second position.

[0057] According to the embodiment shown in the figures, the ring is therefore rotated approximately one-eighth of a turn counterclockwise. When the ring 30 is equipped with a pusher 34, this operation can be performed using a tool inserted through an opening provided in the door's field C1. The tip of the tool is then inserted into the blind opening formed at the end 35 of the pusher, and a force substantially along arrow F1 is applied. The opening through which the tool was inserted to perform this operation can then be sealed to ensure the door's seal. Alternatively, the ring can be rotated manually by applying force to the bearing surface 36, in particular a force applied along arrow F2. This avoids the need to drill a hole in the door's field to insert a tool and eliminates the need to seal this hole to ensure the door's seal.Following the rotation of ring 30, the lock is locked in position in the opening control device.

[0058] The process then comprises a step of moving the slide along the sliding joint and a step of securing the slide to the door element. The slide can, for example, be manually pushed against the door edge C1. Alternatively, it can advantageously be translated using the reaction force produced by the screw 42 on the threaded opening 41 in the slide. Thus, simply tightening the fixing screw allows the slide to be translated until it abuts the door edge C1, and simultaneously locks the slide in position. The slide translation step and the slide fixing step can therefore be performed simultaneously. The head of the screw 42, bearing against the door edge, ensures the door is sealed at the opening through which the screw is inserted.

[0059] Following this assembly, the retaining element 20 is locked in position by a direct connection to the door, specifically to the door frame. This prevents the ring from loosening due to an attempted break-in or as a result of vibrations experienced by the vehicle. The slide can only be screwed into place if the ring is fully rotated into its second position. The invention therefore also provides a means of verifying the correct position of the retaining element. This prevents partial rotation of the ring, which could lead to reduced strength or premature loosening.

Claims

1. Opening control device (10) for a door (2) of a motor vehicle (1), said device comprising a support (11) and a retaining member (20) for a barrel (6), said device being characterized in that the retaining member comprises a ring (30) and a slide (40), the support (11) being intended to be fastened to a panel of a door, the support being provided with a first opening (01) arranged about a main axis (X1), the first opening (01) being intended to house a barrel (6), the ring (30) of the retaining member (20) being moveable in rotation relative to the support (11) about said main axis (X1) between a first position and a second position, the first position being a position in which a barrel (6) is free to be inserted through the first opening (01), the second position being a position in which a barrel (6) previously inserted through the first opening (01) is blocked in position, the slide (40) being connected to the ring (30) by means of a sliding connection, the slide (40) being intended to be rigidly fastened to a door element (4) when the ring is in its second position.

2. Opening control device (10) according to the preceding claim, characterized in that the slide (40) comprises an opening (41), notably a threaded opening, extending substantially parallel to a sliding axis (A1) of the slide and intended to cooperate with a fastening means, notably a screw (42), passing through a region (C1) of the door (2) of a motor vehicle (1).

3. Opening control device (10) according to one of the preceding claims, characterized in that a sliding axis (A1) of the slide (40) with respect to the ring (30) is substantially perpendicular to said main axis (X1).

4. Opening control device (10) according to one of the preceding claims, characterized in that the ring (30) comprises a central portion (31) provided with a second opening (O2) arranged about the main axis (X1), and an arm (32) extending radially from the central portion (31), the arm (32) supporting the slide (40).

5. Opening control device (10) according to the preceding claim, characterized in that said arm (32) comprises a guide rail (33) and in that the slide comprises a groove (43) cooperating with the guide rail (33) to form said sliding connection.

6. Opening control device according to either of Claims 4 and 5, characterized in that the arm comprises a bearing surface (36) oriented such that bearing on the bearing surface (36) tends to pivot the ring (30) relative to the support (11) from its first position to its second position.

7. Opening control device (10) according to one of the preceding claims, characterized in that the support (11) comprises a first stop means (B1) and in that the ring comprises a second stop means (B2), said first position of the ring being defined by the first stop means (B1) bearing against the second stop means (B2), and / or in that the support (11) comprises a third stop means (B3) and in that the ring comprises a fourth stop means (B4), said second position of the ring being defined by the third stop means (B3) bearing against the fourth stop means (B4).

8. Opening control device (10) according to one of the preceding claims, characterized in that the ring (30) comprises a projecting element intended to face a door element (4), the projecting element being arranged to come into contact with the door element when the control device is rocked.

9. Opening control device (10) according to one of the preceding claims, characterized in that it comprises an actuating handle (13) pivotably mounted on the support (11).

10. Locking system (3), characterized in that it comprises an opening control device (10) according to one of the preceding claims and a barrel (6), the barrel being held through the first opening (01).

11. Locking system (3) according to the preceding claim, characterized in that it comprises a cam (14) and a rod support (15), the cam being fastened to the barrel (6), the rod support being fastened to the cam.

12. Locking system (3) according to either of Claims 10 and 11, characterized in that it comprises a lock (7) and a rod (8), the barrel (6) being mechanically connected to the lock by means of the rod and / or in that it comprises a lock (7) and a cable, the barrel (6) being mechanically connected to the lock by means of the cable.

13. Motor vehicle (1), characterized in that it comprises an opening control device according to one of Claims 1 to 9 and / or a locking system (3) according to one of Claims 10 to 12.

14. Method of assembling an opening control device (10) on a door element (4) of a motor vehicle (1), characterized in that it comprises: - a step of providing a door element (4), a barrel (6), and an opening control device (10) according to one of Claims 1 to 9, the ring being in its first position, - a step of positioning the opening control device (10) against a first face of the door element, - a step of inserting a barrel through the first opening (01), - a step of rotating said ring (30) relative to the support (11) to its second position, - a step of moving the slide (40) along said sliding connection, and - a step of fastening the slide (40) to the door element (4), notably with a fastening means passing through a region (C1) of the door element (4).

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