Door stop device with inertial anti-return lock
Patent Information
- Authority / Receiving Office
- FR · FR
- Patent Type
- Patents
- Current Assignee / Owner
- Filing Date
- 2024-03-20
- Publication Date
- 2026-08-07
AI Technical Summary
Existing sliding door stops for vehicles are costly and impractical in addressing the issue of sliding doors rebounding after full opening, especially when opened at high speed.
A door stop device with a cam, jaws, rollers, and an inertial weight system that locks the jaw in a rest position using a blocker when a predefined acceleration threshold is exceeded, preventing the door from rebounding by stabilizing it in the fully open position.
The device effectively stabilizes the sliding door in the fully open position without rebounding, allowing easy closure without additional handles, and maintains stability during vehicle movement.
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Abstract
Description
Title of the invention: Door stop device with anti-return inertial blocker Technical field
[0001] The present invention relates to the field of sliding door stop devices, in particular for motor vehicle sliding doors.
[0002] In particular, the present invention relates to a door stop device providing an anti-return function of the sliding door once it is fully open.
[0003] The present invention is also applicable to other types of vehicles equipped with a sliding door. Previous techniques
[0004] In a vehicle equipped with a sliding door, when an operator attempts to open said sliding door at high speed, the sliding door will naturally tend to rebound after reaching its fully open position.
[0005] Existing sliding door stops attempt to address this problem in a costly, massive and impractical manner, for example using hooks to be subsequently released using a handle, or by using a passive slowing system for the sliding door, the latter being useless when the sliding door is moved at too high a speed. Statement of the invention
[0006] The present invention therefore aims to overcome the aforementioned drawbacks and to provide a door stop device that is simple to use and reliable in all circumstances, making it possible to prevent a sliding door from bouncing after it has been fully opened.
[0007] The present invention relates to a device for stopping a sliding door of a vehicle, comprising:
[0008] - a cam configured to be fixed on a body element of the vehicle;
[0009] - at least one jaw configured to be attached to a sliding door of the vehicle by means of at least one fixing means comprising an elastic element, preferably a spring, configured to define a rest position of the jaw, the jaw being movable between a rest position and an active position;
[0010] - a roller fixed to the jaw and configured to contact and bypass the cam by the effect of the jaw moving into the active position when said roller is driven by the movement of the sliding door towards said cam; the door stop device further comprising:
[0011] - an inertial weight;
[0012] - a blocker driven by the inertial weight, the blocker being configured to lock the jaw in the rest position so that the roller is locked on one side or the other of the cam when the inertial weight is subjected to an acceleration greater than a predefined threshold relative to the sliding door.
[0013] Thus, when an operator opens the sliding door and it reaches its full opening, it is stopped while the inertial weight continues its trajectory. This difference in speed between the inertial weight and the sliding door drives the inertial weight and the blocker into a position where said blocker locks the jaw in its rest position. Although the sliding door will attempt to rebound against the body element of the vehicle, the roller will not be able to return to the other side of the cam due to the jaw being locked in its rest position. The sliding door is therefore stabilized in the fully open position without rebounding or returning to its closed position.Furthermore, after this stabilization, the inertial weight returns to a speed similar to that of the sliding door, the inertial weight and the blocker therefore naturally return to a position in which the jaw is no longer locked in its rest position. The operator can therefore close the sliding door without having to use a special handle to unlock the jaw.
[0014] Advantageously, the device comprises a second jaw on which a second roller is fixed, the two rollers being configured to bypass the cam on either side by the effect of the jaws moving into the active position when said rollers are driven by the movement of the sliding door towards said cam.
[0015] In embodiments, the inertial weight is fixed on a pendulum-type arm supported by the sliding door and is connected by this arm to the blocker, or in which the inertial weight is taken in the mass of the blocker fixed to at least one spring connected to the sliding door.
[0016] Advantageously, the blocker is configured to move in a translational movement, the jaw comprising at least one zone for movement of the blocker regardless of the position of the jaw, and a first protuberance against which the blocker comes into contact when the inertial weight is subjected to an acceleration greater than a predefined threshold relative to the sliding door and the jaw tends to move away from its rest position.
[0017] According to a particular embodiment, the jaw comprises a second protuberance separated from the first protuberance by the movement zone of the blocker, the blocker being configured to move opposite the first protuberance to the second protuberance.
[0018] Advantageously, the roller is fixed to the jaw by means of an axis, the roller being configured to roll against the cam in contact with it.
[0019] In one embodiment, the jaw is configured to perform a translational movement relative to the sliding door between its rest position and its active position.
[0020] In another embodiment, the jaw is connected to the sliding door by an axis and is configured to perform a rotational movement about the axis between its rest position and its active position.
[0021] Advantageously, the blocker is of cylindrical shape whose curved face is configured to come into contact with the jaw.
[0022] The present invention also relates to a motor vehicle comprising a sliding door and a body element on which the device as defined above is fixed. Brief description of the drawings
[0023] Other aims, characteristics and advantages of the invention will appear on reading the following description, given solely by way of non-limiting example, and made with reference to the appended drawings in which:
[0024] [Fig.l] is a schematic view of a sliding door stop device according to a first embodiment;
[0025] [Fig.2] is a schematic view of a sliding door stop device according to [Fig.l] in which the sliding door is substantially in a fully open position;
[0026] [Fig.3] is a schematic view of a sliding door stop device according to [Fig.l] in which the sliding door is in abutment against a body element, in a fully open position;
[0027] [Fig.4] is a schematic view of a sliding door stop device according to [Fig.l] in which the sliding door has rebounded against a body member but cannot close under the anti-return action of the door stop device;
[0028] [Fig.5] is a schematic view of a sliding door stop device according to [Fig.l] in which the sliding door is stationary in a fully open position;
[0029] [Fig.6] is a schematic view of a sliding door stop device according to [Fig.l] in which the sliding door is locked in the fully open position under the effect of braking of the motor vehicle;
[0030] [Fig.7] is a schematic view of a motor vehicle comprising a sliding door stop device according to a second embodiment; and
[0031] [Fig.8] is a schematic view of a motor vehicle comprising a sliding door stop device according to a third embodiment.
[0032] Detailed description of at least one embodiment
[0033] [Fig.l] schematically shows a motor vehicle 1 comprising a sliding door 3, a body element 5 and a device 7 for stopping said sliding door 3 according to a first embodiment.
[0034] As illustrated, the sliding door 3 is intended to be moved between a closed position and a fully open position in abutment against the stop 9 fixed to the body element 5.
[0035] In this first embodiment, the sliding door stop device 7 comprises a cam 11 configured to be fixed to the body element 5 of the vehicle 1.
[0036] The device 7 further comprises at least one jaw 13 configured to be fixed to the sliding door 3 of the vehicle 1, for example by means of a housing 15.
[0037] The jaw 13 is fixed by means of at least one fixing means 17 comprising an elastic element 19, preferably a spring 19, configured to define a rest position of the jaw, the jaw being movable between a rest position and an active position. As illustrated in [Fig.l], the jaw is in a rest position towards which the elastic element 19 causes the position of the jaw 13 to tend.
[0038] In particular, in this first embodiment, the fixing means 17 comprises an axis 21 so that the jaw 13 is fixed to the sliding door 3 by means of this axis 21 passing through the jaw 13 in its central part, the jaw 13 being configured to perform a rotational movement around the axis 21 between its rest position and its active position.
[0039] Optionally, the device 7 comprises a stop element 23 against which the jaw 13 is in contact in the rest position, in order to precisely define the rest position.
[0040] The device 7 also comprises a roller 25 fixed to the jaw 13, for example by means of a rotation axis 27.
[0041] The roller 25 is for example in the form of a wheel rotating around the axis.
[0042] The roller 25 is configured to contact and bypass the cam 11, by example by rolling against the cam 11, by the effect of the passage of the jaw 13 in the active position when said roller 25 is driven by the movement of the sliding door 3 towards said cam 11.
[0043] In a particular embodiment, the cam 11 is a rod fixed to the body element 5 whose section is rounded so that the roller 25 can roll on its outer surface.
[0044] In other words, when the sliding door 3 is set in motion to be opened, for example by an operator, towards the body element 5, the roller 25 comes into contact with the cam 11. Consequently, the jaw 13 moves towards its active position so as to allow the roller 25 to bypass the cam 11 and pass to the other side, in which case the jaw 13 returns to its rest position.
[0045] Advantageously and as illustrated, the device 7 comprises a second jaw 13 on which a second roller 25 is fixed. The two jaws 13 and the two rollers 25 operate in exactly the same way, for example symmetrically. The two rollers 25 are configured to bypass the cam 11 on either side by the effect of the jaws 13 moving into the active position when said rollers 25 are driven by the movement of the sliding door 3 towards said cam 11.
[0046] In this first embodiment, the elastic element 19 is for example a spring 19 attached on either side to each jaw 13.
[0047] This two-jaw configuration 13 is more robust than the single-jaw configuration 13, which only works if each element is perfectly arranged and sufficiently rigid.
[0048] The door stop device 7 also comprises an inertial weight 29 as well as a blocker 31 driven by the inertial weight 29.
[0049] When the inertial weight 29 is subjected to an acceleration greater than a predefined threshold relative to the sliding door 3, the blocker 31 is configured to lock the jaw 13 in the rest position so that the roller 25 is blocked on one side or the other of the cam 11. The predefined threshold depends, among other things, on the mass of the inertial weight 29.
[0050] In the illustrated embodiment, the door stop device 7 comprises a pendulum-type arm 33 at the end of which the inertial weight 29 is fixed. The arm 33 comprises at the other end a means 35 for setting the blocker 31 in motion. For example, the arm comprises a fork 35 passing on either side of a protrusion 37 of the blocker 31. In addition, the pendulum-type arm 33 is fixed to the sliding door 3, optionally via the housing 15, by an axis 39 positioned between the fork 35 and the inertial weight 29 so that said inertial weight 29 swings like a pendulum depending on the acceleration to which it is subjected.
[0051] Optionally, the device 7 comprises a stop element 23 against which the arm 33 abuts in order to limit the amplitude of its swing.
[0052] Advantageously, the blocker 31 is configured to move in a translational movement, for example along a groove 41 formed in the housing 15 and / or in the sliding door 3. In particular, the protrusion 37 extends for example also on the side of the groove 41 in order to serve as a guide for the blocker 31. The jaw 13, or in this case the jaws 13, each comprise at least one circulation zone 43 of the blocker 31 regardless of the position of the jaw 13, and a first protuberance 45 against which the blocker 31 comes into contact when the inertial weight 29 is subjected to an acceleration greater than a predefined threshold relative to the sliding door 3 and the jaw(s) 13 tend to move away from their rest position.
[0053] Advantageously, the blocker 31 is of cylindrical shape whose curved face is configured to come into contact with the jaws 13, in particular with the first protuberance 45 of each jaw 13.
[0054] In this first embodiment, the blocker 31 is preferably positioned between the two jaws 13, the first protuberance 45 also extending between the two jaws 13.
[0055] Thus, when an operator opens the sliding door 3 and it reaches its full opening, the jaws 13 move apart at the level of the rollers 25 in contact with the cam 11 so as to cause said rollers 25 to pass to the other side of the cam 11. This step is illustrated in [Fig.2].
[0056] Then, the sliding door 3 is stopped by the stop 9 while the inertial weight 29 continues its trajectory thanks to the inertia given by the opening movement of the sliding door 3.
[0057] In this embodiment where the inertial weight 29 is connected to the pendulum-type arm 33, the difference in speed between the inertial weight 29 and the sliding door 3 drives the inertial weight 29 towards the body element 5. The blocker 31 is driven in the opposite direction by the arm 33 into a position where said blocker 31 is against each first protuberance 45 of each jaw 13 and thus locks the jaw(s) 13 in their rest position. This step is illustrated in [Fig.3].
[0058] Although the sliding door 3 will attempt to rebound against the body element 5 of the vehicle, the roller 25 will not be able to pass back to the other side of the cam 11 due to the locking the jaw 13 in its rest position. This is the anti-return, or anti-rebound, function of the device 7 according to the invention. This step is illustrated in [Fig.4].
[0059] The sliding door 3 is therefore stabilized in the fully open position without rebound or return to its closed position. In addition, after this stabilization, the inertial weight 29 returns to a speed similar to that of the sliding door 3. The inertial weight 29 and the blocker 31 therefore naturally return to a position in which the jaw(s) 13 are no longer locked in their rest position. This step is illustrated in [Fig.5].
[0060] The operator can therefore close the sliding door 3 without having to use a special handle to unlock the jaw 13.
[0061] According to a particular embodiment, the jaw 13 comprises a second protuberance 47 separated from the first protuberance 45 by the circulation zone 43 of the blocker 31, the blocker 31 being configured to move opposite the first protuberance 45 to the second protuberance 47.
[0062] Thus, in the case where the sliding door 3 is in the fully open position when the vehicle 1 moves forward, if said vehicle 1 brakes suddenly, the sliding door 3 will tend to close on its own. But this situation will be prevented by the blocker 31 which, driven by the inertial weight 29 still driven by its inertia, will position itself against the second protuberance 47 and will therefore lock the jaws 13 in the rest position, the rollers 25 thus not being able to pass to the other side of the cam 11. The sliding door 3 will not close. This situation is illustrated in [Fig.6].
[0063] [Fig.7] schematically shows a motor vehicle 1 comprising a sliding door 3, a body element 5 and a device 7 for stopping said sliding door 3 according to a second embodiment.
[0064] This second embodiment is identical to the first embodiment except with regard to the inertial weight 29 which does not require a pendulum-type arm 33 since it is taken in the mass of the blocker 31. Said blocker 31 is fixed to the sliding door 3 or to the housing 15 by means of at least one spring 49, preferably two or more. The positions of the first protrusion 45 and the second protrusion 47 are also exchanged with each other.
[0065] Thus, according to the same principle as for the first embodiment, when an operator opens the sliding door 3 and brings it against the stop 9, the difference in speed between the inertial weight 29 and the sliding door 3 drives the inertial weight 29, and therefore the blocker 31 towards the body element 5. The blocker 31 is against each first protuberance 45 of each jaw 13 and thus locks the jaw(s) 13 in their rest position.
[0066] Conversely, in the case where the sliding door 3 is in the fully open position when the vehicle is moving forward, if said vehicle 1 brakes suddenly, the sliding door 3 will tend to close on its own. But this situation will be prevented by the blocker 31 and the inertial weight 29 which, driven by their inertia, will position themselves against the second protuberance 47 and will therefore lock the jaws 13 in the rest position, the rollers 25 thus not being able to pass to the other side of the cam 11. The sliding door 3 will not close.
[0067] [Fig. 8] schematically shows a motor vehicle 1 comprising a sliding door 3, a body element 5 and a device 7 for stopping said sliding door 3 according to a third embodiment.
[0068] This third embodiment is identical to the first embodiment except with regard to the jaw(s) 13 which are not configured to perform a rotational movement around the axis 21 between their rest position and their active position.
[0069] Indeed, the jaws 13 are rather configured to perform a translational movement relative to the sliding door 3 between their rest position and their active position.
[0070] The jaws 13 are for example each connected to the sliding door 3, for example via the housing 15 but without a rotation axis 21, via at least one fixing means 17 comprising an elastic element 19, preferably a spring 19. The elastic element 19 allows the jaws 13 to move apart, for example along a guide 51 so that each roller 25 can go around the cam 11.
[0071] In this third embodiment, two jaws 13 are shown, the protrusions 45 and 47 being arranged towards the outside of the jaws, unlike the first embodiment in which the protrusions 45 and 47 are oriented towards the inside of the jaws 13.
[0072] In addition, a protrusion 37 similar to that described in the first embodiment extends from the center of a rod 53 from which extend the two blockers 31 which are configured to be set in motion respectively opposite each protuberance 45 and 47 towards the outside of the jaws.
Claims
Claims
1. Device (7) for stopping a sliding door (3) of a vehicle (1), comprising: - a cam (11) configured to be fixed to a body element (5) of the vehicle (1); - a jaw (13) configured to be fixed to a sliding door (3) of the vehicle (1) by means of at least one fixing means (17) comprising an elastic element (19), preferably a spring (19), configured to define a rest position of the jaw (13), the jaw (13) being movable between a rest position and an active position; - a roller (25) fixed to the jaw (13) and configured to come into contact with and bypass the cam (11) by the effect of the passage of the jaw (13) into the active position when said roller (25) is driven by the movement of the sliding door (3) towards said cam (11), characterized in that it comprises: - an inertial weight (29);- a blocker (31) driven by the inertial weight (29), the blocker (31) being configured to lock the jaw (13) in the rest position so that the roller (25) is blocked on one side or the other of the cam (11) when the inertial weight (29) is subjected to an acceleration greater than a predefined threshold relative to the sliding door (3).;
2. Device (7) according to claim 1, comprising a second jaw (13) on which a second roller (25) is fixed, the two jaws (13) and the two rollers (25) operating in exactly the same way, for example symmetrically, the two rollers (25) being configured to bypass the cam (11) on either side by the effect of the passage of the jaws (13) in the active position when said rollers (25) are driven by the movement of the sliding door (3) towards said cam (11).
3. Device (7) according to one of claims 1 and 2, in which the inertial weight (29) is fixed on a pendulum-type arm (33). supported by the sliding door (3) and is connected by this arm (33) to the blocker (31), or in which the inertial weight (29) is taken in the mass of the blocker (31) fixed to at least one spring (49) connected to the sliding door (3).
4. Device (7) according to any one of claims 1 to 3, in which the blocker (31) is configured to move in a translational movement, the jaw (13) comprising at least one circulation zone (43) of the blocker (31) regardless of the position of the jaw (13), and a first protuberance (45) against which the blocker (31) comes into contact when the inertial weight (29) is subjected to an acceleration greater than a predefined threshold relative to the sliding door (3) and the jaw (13) tends to move away from its rest position.
5. Device (7) according to claim 4, wherein the jaw (13) comprises a second protuberance (47) separated from the first protuberance (45) by the circulation zone (43) of the blocker (31), the blocker (31) being configured to move opposite the first protuberance (45) to the second protuberance (47).
6. Device (7) according to any one of claims 1 to 5, in which the roller (25) is fixed to the jaw (13) by means of an axis (27), the roller (25) being configured to roll against the cam (11) in contact with it.
7. Device (7) according to any one of claims 1 to 6, wherein the jaw (13) is configured to perform a translational movement relative to the sliding door (3) between its rest position and its active position.
8. Device (7) according to any one of claims 1 to 6, wherein the jaw (13) is connected to the sliding door (3) by an axis (21) and is configured to perform a rotational movement around the axis (21) between its rest position and its active position.
9. Device (7) according to any one of claims 1 to 8, in which the blocker (31) is of cylindrical shape whose curved face is configured to come into contact with the jaw (13).
10. Motor vehicle (1) comprising a sliding door (3) and a body element (5) on which the device (7) according to any one of claims 1 to 9 is fixed.