ANTI-THEFT DEVICE, ESPECIALLY FOR PEDAL-POWERED VEHICLES

Abstract

The invention relates to an anti-theft device for a pedal-driven vehicle. The anti-theft device comprises a first anti-theft part, fixed to a support and having a housing for a crank arm, and a second anti-theft part designed to fold over the first anti-theft part to secure it and block the crank arm. The anti-theft device also includes a locking mechanism for locking the second anti-theft part onto the first anti-theft part and an adjustment mechanism for adjusting the height of the first anti-theft part relative to the ground. According to the invention, the locking mechanism is configured to block the adjustment mechanism when the second anti-theft part is locked onto the first anti-theft part. Figure to be published with the abstract: Fig. 1a

Description

Title of the invention: ANTI-THEFT DEVICE, PARTICULARLY FOR PEDAL-POWERED VEHICLES FIELD OF THE INVENTION

[0001] The present invention relates to an anti-theft device, and in particular an anti-theft device for a pedal-powered vehicle such as a bicycle. The invention also relates to an electromechanical lock that may be part of the anti-theft device. The electromechanical lock of the anti-theft device may be powered by a mechanical energy harvester. It may be operated by a control unit configured to pair with a user's portable processing device, for example, a multifunction phone with which the user is equipped. The invention therefore also relates to the method of controlling an electromechanical lock. TECHNOLOGICAL BACKGROUND OF THE INVENTION

[0002] A known anti-theft device for a pedal-driven vehicle, for example a bicycle, is described in document EP3549849. This device comprises a first anti-theft part designed to be fixed to the ground and having a groove or channel for housing a crank arm. It also comprises a second anti-theft part forming a removable lock, designed to fit over the first anti-theft part so as to clamp the crank arm in the first anti-theft part. The second anti-theft part is arranged to fit over the end of the crank arm and the pedal axle when the crank body is engaged in the groove. The bicycle is thus secured and cannot be moved without first unlocking both anti-theft parts.The crankset assembly components are also made inaccessible, particularly at the pedal axle, which therefore prevents the crankset from being freed by disassembly from the clamp formed by the two parts of the lock.

[0003] Although the locking principles set out in this document are particularly interesting, the proposed solution is not sufficiently complete to form an anti-theft device accessible to a wide public and suitable for operation in an urban environment, for example in a parking station.

[0004] Firstly, the anti-theft device proposed by this document is not adaptable to the size of the bicycle it is intended to secure. To compensate for this, it is necessary to provide, in a parking station, a whole variety of anti-theft devices, each adapted to a particular bicycle size (from size S to size XL, for example).

[0005] Since the anti-theft device is not always perfectly adapted to the size of the bicycle, not all of the bicycle's degrees of freedom are blocked, and play may occur. Mistakes can occur. For example, the bicycle wheels may not be resting on the ground, or they may not be firmly planted. It is then possible to exploit the play between the bicycle and the lock to apply force to forcibly remove the crank handle from the two parts of the lock.

[0006] Furthermore, it is desirable that the anti-theft device have an interface allowing a user to easily operate the lock, particularly when the anti-theft device is used in a parking station in an urban environment. This interface could, for example, allow authorization and / or payment to compensate for the use of the device. By way of illustration, document FR3114431A1 proposes a lock for securing a bicycle to a piece of street furniture. The lock can communicate with a user's portable processing device, i.e., a multifunction phone, and with a remote server. The multifunction phone, the lock, and the server coordinate to authorize the locking and unlocking of the lock. Such an interface requires supplying the lock with electrical power and equipping it with relatively complex communication means.However, it is generally desirable for the anti-theft device to be as simple, in installation and use, and as robust as possible.

[0007] It is noted that the problem of interfacing, simplicity of installation and use, robustness is not limited to bicycle anti-theft devices, but can be applied to any anti-theft device implementing a lock intended to secure objects, or access to a space, in various fields of application, for example an anti-theft device intended to secure a key to access a dwelling (“key box”) or more generally a locker or to lock a gate providing access to an enclosed space. SUBJECT OF THE INVENTION

[0008] One object of the invention is to provide an anti-theft device, and in particular an anti-theft device for a pedal-powered vehicle such as a bicycle, which addresses at least some of the limitations of prior art solutions. Advantageously, this anti-theft device also addresses the needs that must be met for urban use, for example in a vehicle parking facility, and is accessible to a wide public. Another object of the invention is to provide an anti-theft device implementing a lock for securing objects or access to a space, which is easy to use. BRIEF DESCRIPTION OF THE INVENTION

[0009] To achieve this goal, the object of the invention proposes an anti-theft device for a pedal-powered vehicle, the device comprising: a. a first part of an anti-theft device, attached to a support, and having a housing intended to receive a crank arm; b. a second part of the lock, supported by the bracket, designed to fold over the first part of the lock to cover it and block the crank arm; c. A locking mechanism, also supported by the bracket, designed to lock the second part of the anti-theft device onto the first part of the anti-theft device.

[0010] According to the invention, the anti-theft device includes an adjustment mechanism for adjusting the elevation of the first part of the anti-theft device relative to the ground. The locking mechanism is configured to block the adjustment mechanism when the second part of the anti-theft device is locked onto the first part of the anti-theft device, thus fixing its elevation.

[0011] According to other advantageous and non-limiting features of the invention, taken alone or in any technically feasible combination: - the support carries an anti-theft axle, the second part of the anti-theft being connected to the anti-theft axle so as to be folded down by pivoting onto the first part of the anti-theft; - the adjustment mechanism includes a rack and the locking mechanism includes a ratchet configured to engage in the rack; - the support is a tubular post extending in a substantially vertical longitudinal direction; - the adjustment includes a tubular foot intended to rest on the ground, the tubular foot being configured to engage in the tubular post and allow the latter to slide; - the adjustment mechanism includes a piston comprising a piston head, the piston being disposed in the tubular foot and the piston head supporting the tubular post; - the piston comprises a piston body, a compression spring disposed in the piston body and a rod to retain the compression spring in the piston body; - the locking mechanism includes a roller attached to the anti-theft axle and in contact with the piston; - the roller of the locking mechanism takes the form of a cam; - the locking mechanism includes a lock, the lock having a bolt intended to engage in a locking hole in the roller; - the lock is electrically powered to selectively engage and disengage the lock bolt from the roller's locking hole; - the anti-theft device includes a renewable energy source associated with the lock; - the renewable energy source is a mechanical energy recovery unit; - The mechanical energy recovery system includes: • a cap arranged on the top of the support, the cap being able to move in longitudinal translation from an original position on the support by application of an external force; • a return mechanism to return the cap to its original position during a return movement when the application of external force is interrupted; • a drive mechanism connected to the cap and a generator, to transform the movement of the cap into electrical energy; - the drive mechanism is freewheel, so the generator is only driven during the return movement of the cap; - the locking mechanism includes a control unit for operating the lock comprising a near field communication circuit. DESCRIPTION OF THE FIGURES

[0012] Other features and advantages of the invention will become apparent from the detailed description of the invention which follows with reference to the accompanying figures in which:

[0013] [Fig. la]

[0014] [Fig.lb]

[0015] [Fig. le]

[0016] [Fig.ld]

[0017] Figures la, 1b, le, Id represent an overview of an anti-theft device for a pedal-driven vehicle in a free position and in an occupied position, according to one embodiment;

[0018] [Fig.2a]

[0019] [Fig.2b]

[0020] Figures 2a, 2b represent cross-sections of the anti-theft devices of figures la and lb;

[0021] [Fig.2c]

[0022] Fig. 2c represents another cross-section of the anti-theft device of Fig. lb;

[0023] [Fig.3a]

[0024] [Fig.3b]

[0025] Figures 3a and 3b respectively represent a crankset and a pedal;

[0026] [Fig.4]

[0027] Fig. 4 represents a control unit of an anti-theft device in one implementation mode;

[0028] [Fig.5a]

[0029] [Fig.5b]

[0030] [Fig.5c]

[0031] Figures 5a, 5b, 5c respectively represent a lock of a locking mechanism of an anti-theft device in the free, closed and locked positions respectively;

[0032] [Fig.6a]

[0033] [Fig.6b]

[0034] Figures 6a and 6b represent a cross-sectional view of a lock in the unlocked position and in the locked position. DETAILED DESCRIPTION OF THE INVENTION

[0035] For the sake of simplicity in the following description, the same references are used for identical elements or elements performing the same function in the different modes of implementation of the invention.

[0036] The term "pedal-powered vehicle" refers to any vehicle that can be propelled by its user via a pedal system. This typically includes bicycles, with or without electric assistance, but the anti-theft device described herein is by no means limited to this type of pedal-powered vehicle.

[0037] It is recalled, with reference to figures 3a and 3b which respectively represent a crankset P and a pedal 5, that a crankset P comprises two cranks 2 each having a first end connected to a crank axle 3 and a second end connected to an axle 4 of a pedal 5. The cranks 2 are fixed opposite each other on the crank axle 3. General description of the anti-theft device

[0038] Figures 1a, 1b, 1e, and 1d show an overview of an embodiment of an anti-theft device 1 for a pedal-powered vehicle, respectively in a free position (Figures 1a, 1e) and in an occupied or closed position (Figures 1b, 1d). The free position is that of the device 1 when it is available to receive a vehicle. The closed position is that of the device 1 when it secures a vehicle to prevent theft. The pedal-powered vehicle has been omitted from Figure 1b for clarity.

[0039] The anti-theft device 1 described herein incorporates the principles of the solution presented in document EP3549849 cited in the introduction to this application. Figures 1a, 1b, 1e, and 1d clearly show a first part of the anti-theft device 6a having a housing 6c designed to receive a crank handle of the vehicle when it is properly positioned on the anti-theft device 1 to be secured. A second part of the anti-theft device 6b is also shown, designed to fold over the first part of the anti-theft device 6a to cover it and thus block the crank handle. of crankset, and more generally a part of the crankset "in a vise" between the two parts of the lock 6a,6b.

[0040] More specifically, and in the preferred embodiment shown in Figures 1a, 1b, 1e, 1d, the housing for the first part of the lock 6a is formed by a groove 6c arranged on a front surface of the first part of the lock 6a. The groove is surmounted by a groove 6e to accommodate a pedal axle associated with the crank arm when the latter is positioned in the groove 6c. The groove 6e is thus positioned in the space e separating the crank arm from the pedal, this space e being shown in [Fig. 3b]. The groove is long enough to extend from the pedal axle 4 to the crank arm axle 3 and thus conceal the nut retaining the crank arm axle to the crank arm, as can be seen in [Fig. 1d]. This prevents the removal of this nut, which could allow the vehicle to be freed from the vise formed by the two parts of the anti-theft device 6a,6b.

[0041] The first part of the anti-theft device 6a also includes a bearing surface 6h, extending from the groove 6e perpendicularly to the front surface on which the channel 6c is formed. The bearing surface receives the pedal associated with the crank arm when the latter is positioned in the channel. It also prevents access from below to the pedal nut 5a, thus preventing its removal.

[0042] The second anti-theft part 6b consists of a cover plate for the pedal resting on the support surface. When the second anti-theft part 6b is folded down onto the first part 6a, this plate prevents access from above to the pedal nut 5a. Advantageously, the cover plate includes a branch 6f to conceal the pedal axle.

[0043] The first and second anti-theft parts 6a, 6b are both supported by a bracket 7, which in the embodiment shown takes the form of a tubular post extending in a substantially vertical longitudinal direction. The first anti-theft part 6a is fixed to the bracket 7. In some cases, the first anti-theft part 6a may be fixed to the bracket, while remaining removable, to facilitate maintenance of the device 1. The second anti-theft part 6b is mounted on a substantially horizontal anti-theft axle 6d, also supported by the bracket 7. The second anti-theft part 6b can be folded down by pivoting onto the first anti-theft part 6a and thus cover it. For this purpose, the second anti-theft part 6b may have a handle 6g allowing the user to grasp this second part and close it over the first part.Of course, support 7 can take a different form than the tubular post used in the embodiment shown.

[0044] The anti-theft device 1 is equipped with a locking mechanism, designed to lock The second locking part 6b is attached to the first locking part 6a to secure the vehicle and prevent theft. The locking mechanism, also supported by bracket 7, engages to lock the first and second locking parts together when the user folds the second locking part 6b onto the first part 6a by rotating it around axis 6d, as will be detailed in a later section of this description. "Locked together" means that it is not possible to separate the second locking part 6a from the first part 6a by applying force to try to release the pedal assembly.

[0045] To do this, the locking mechanism includes a roller 10 through which the anti-theft axle 6d passes centrally and which is integral with it, so that the pivoting of the second part of the anti-theft 6b causes the roller 10 to rotate. Advantageously, for reasons which will be made apparent in the rest of this description, the roller 10 takes the form of a cam.

[0046] The locking mechanism also includes a lock 24 comprising a bolt 11 designed to selectively engage and disengage in a locking orifice of the roller 10 forming a strike plate of the lock, in order to selectively block and unlock the rotational movement of the anti-theft shaft 6d. When the bolt is engaged in the strike plate, the anti-theft device is locked. The bolt 11 can be moved between its engaged position and its disengaged position in the strike plate by any suitable mechanism, for example, and very conventionally, by means of a user-operated key or by means of a motor or servomotor. In the embodiment shown, the bolt 11 is moved by an electromechanical mechanism of the lock, which will be the subject of a later section of this description.

[0047] The anti-theft device 1 also includes an adjustment mechanism for adjusting the height of the first anti-theft part 6a relative to the ground. The adjustable height of the anti-theft device 6a, 6b not only allows the anti-theft device 1 to be adapted to vehicles of different sizes, but also has the advantage of being able, in the closed position of the device 1, to press the vehicle against the ground in order to block any movement or play in roll, pitch, and yaw of the vehicle. This feature, in addition to the "vise" effect of the two anti-theft parts 6a, 6b which limit movement or play in rolling, swerving, and pitching, helps to secure the vehicle by limiting the torques that can be applied, by forcing the vehicle, to the two anti-theft parts 6a, 6b, these torques aiming to separate them and free the vehicle from their grip.

[0048] The adjustment mechanism includes a foot 8 for anchoring the anti-theft device 1 very firmly to the ground, so that a vehicle held by its crank handle in a vise-like position between the two anti-theft parts 6a, 6b, cannot be easily removed from the device 1. In the In the implementation method presented, the foot 8 rests on and is firmly fixed to the ground by means of a base that allows, for example, the foot 8 to be bolted to a buried concrete block. However, in alternative or additional implementation methods, this foot 8 could be attached to street furniture, an arch, or any other element firmly anchored to the ground. In the implementation method shown, the foot 8 is tubular and is configured to engage with the tubular post 7, allowing the latter to slide and adjust the elevation of the first part of the anti-theft device 6a, which is attached to the tubular post 7, relative to the ground. To allow this sliding, the foot 8 extends in a substantially vertical longitudinal direction.

[0049] The adjustment mechanism also includes a piston 9 supporting the bracket 7. The piston 9 can be a simple helical compression spring. The piston allows the bracket 7 and the first part of the anti-theft device 6a to be positioned, in the open position of the anti-theft device 1 and in the absence of any vehicle, at a suitable ground elevation for receiving the vehicle. A force with a vertical component directed towards the ground and applied to the bracket 7 tends to compress the spring to adjust the elevation of this bracket 7 (and of the first part of the anti-theft device 6a) closer to the ground. The piston 9 thus allows the elevation of the first part of the anti-theft device 6a to be easily adjusted to the size of the vehicle, as previously stated, so that this vehicle can rest on the ground once placed in and on the anti-theft device 1.This adjustment of the support's elevation, which brings the vehicle to rest on the ground, may require applying additional force beyond that generated by the vehicle's weight alone.

[0050] In the embodiment shown, and as can be seen in Figures 2a and 2b, the piston 9 is disposed in the tubular foot 8, with a head 9b of this piston 9 supporting the tubular post 7. More specifically, the head 9b of the piston is in contact with the roller 10 of the locking mechanism. The piston comprises a piston body 9a, a compression spring 9c disposed in the piston body 9a between the piston head 9b, and a second stop 9e disposed on a rod 9d sliding within the piston body 9a. The rod 9d rests on the base 8a. It is partially inserted into the piston body 9a to retain it and properly position the compression spring 9c and guide it during compression.

[0051] According to a highly advantageous feature of the anti-theft device 1, the locking mechanism is configured to block the adjustment mechanism when the second anti-theft part 6b is locked onto the first anti-theft part 6a. With the adjustment mechanism blocked, the elevation of the support 7, and therefore of the first anti-theft part 6a, relative to the ground is fixed. As an example of such a configuration of the locking mechanism and its interaction with the adjustment mechanism, one can envision a rack 12 fixed to the foot 8 and extending longitudinally in the tubular post 7. The locking mechanism can be provided with a notch, for example a notch formed on the roller 10 carried by the anti-theft axle 6d itself supported by the support 7 or a notch carried by a ratchet 23 separate from the roller 10. The notch, whether formed on the roller 10 or carried by a ratchet 23, is configured to engage in the rack 12 when the second part of the anti-theft 6b is folded down onto the first part of the anti-theft 6a, and the roller is rotated a quarter turn.The cam-shaped profile of the roller 10 facilitates the engagement of the notch in the rack 12 during this rotation, selectively engaging the notch in the rack when the second part of the anti-theft device 6b is positioned over the first part 6a in the closed position of the anti-theft device 1, and disengaging the notch from the rack 12 when the second part of the anti-theft device 6b is raised to the free position of the anti-theft device 1. When the notch is engaged in the rack, the adjustment mechanism is locked and the sliding movement of the support 7 is no longer possible. For the purposes of this application, "notch" and "rack" refer to any mechanism configured to cooperate and lock the sliding connection between the support 7 and the foot 8. The notch can thus take the form of any protruding mechanical element capable of engaging in a recess forming a rack.This rack can notably take the form of a series of holes fitted on the foot or on a part attached to the foot, these holes allowing a notch carried by the support 7 to be enclosed and thus locking the connection.

[0052] Other mechanisms are naturally conceivable for locking the adjustment mechanism in coordination with the locking mechanism. For example, the engagement / disengagement of the notch in the rack, particularly when this notch is carried by a ratchet 23, can be operated by the lock of the locking mechanism, for instance, driven by a key when such a key is used to lock the two anti-theft parts 6a, 6b together, as previously mentioned. An electromechanical lock will be proposed in a later section of this description, allowing the two anti-theft parts 6a, 6b to be locked simultaneously and blocking the adjustment mechanism. In all cases, a locking mechanism conforming to this embodiment is advantageously configured to block the adjustment mechanism when the second anti-theft part 6b is locked onto the first anti-theft part.The elevation of the support 7 and the first part of the anti-theft device 6a relative to the ground is fixed in this case. It is particularly advantageous to make the locking of the adjustment mechanism simultaneous with the locking of the two parts of the anti-theft device: this prevents the adjustment mechanism from being blocked with the compressed piston spring when the second part of the anti-theft device is simply folded down onto the first part 6a, this simply closed position being able to... release suddenly and injure the user.

[0053] To secure their pedal-powered vehicle, for example, their bicycle, a user positions the bicycle in an anti-theft device 1 in the free position, with the support 7 and the first part of the lock 6a in the receiving position. To do this, the user places the bicycle's crankset in the device so as to wedge one crank arm in the groove 6c and against the front surface of the first part of the lock 6a. Simultaneously, the user places the pedal against the bearing surface of this first part 6a. The groove 6e, which is located above the groove, is positioned in the space e separating the crank arm from the pedal. This positioning, which may require slightly lifting the bicycle from the ground to rest it on the first part of the lock 6a, causes the support 7 to slide downwards. The weight of the bicycle applies a vertical force tending to compress the spring 9c of the piston 9.The stiffness of this spring is preferably chosen so that, under the effect of an average bicycle weight, the support 7 slides sufficiently and the elevation of the first part of the lock 6a adjusts downwards sufficiently so that the bicycle rests its two wheels on the ground, once properly positioned on the device 1.

[0054] The user can then operate the second part of the lock 6b, for example by manipulating it by its handle 6g to fold it over the first part 6a, thus clamping it and holding the crankset in a vise-like position. The force applied to the second part of the lock 6b by the user is transmitted to the piston 9 via the roller 10 resting on (and supported by) the head 9b of the piston. This effect is amplified by the advantageous cam shape of the roller 10, which requires an increased initial force from the user on the second part of the lock 6b to initiate the rotation of the cam, in order to release it from its initial position. This increased force therefore tends to press the bicycle to the ground.It should also be noted that when the second part of the anti-theft device 6b is fully folded down onto the first part 6a and the roller 10 has completed a quarter turn, it reaches a stable position. This means that despite the return force exerted by the piston 9 on the roller 10 of the locking mechanism, the anti-theft device 1 remains fixed in the raised position. Therefore, once the second part of the anti-theft device 6b is fully folded down onto the first part 6a, the user can release the force exerted on this second part 6b without the support 7 rising and without causing the second part of the anti-theft device 6b to pivot open. With the position of the anti-theft device 1 closed and stable, the user can then operate the lock of the locking mechanism, for example, using a key.As already mentioned, the locking mechanism is configured to block the adjustment mechanism, so that in the closed position of the anti-theft device 1, and advantageously only when the lock is engaged, the support 7 cannot slide on the foot 8.

[0055] To release the bicycle from the anti-theft device 1, the user unlocks the second The second part of the anti-theft device 6b is separated from the first part 6a by means of the lock. This lock can be operated by a key or by any other means, for example, via a multifunction phone, as will be explained in a later section of this description. The user can then apply force to this second part 6b, for example, via the handle 6g. This force tends to pivot this second part of the anti-theft device 6b away from the first 6a, thus placing the anti-theft device 1 in the free position and releasing the bicycle. The unlocking of the adjustment mechanism can be simultaneous with the unlocking step of the lock or, advantageously, to prevent the sudden release of the support 7 pushed back by the piston 9, be triggered by the pivoting of the second part of the anti-theft device 6b.

[0056] Source for supplying electrical energy to the anti-theft device

[0057] Advantageously, the locking device is an electromechanical lock. In other words, the lock is electrically powered to selectively engage and disengage a distal end 1 of the locking bolt 11 in the locking hole of the roller 10. This selectively blocks and releases the rotation of the anti-theft shaft 6d. The device 1 can then be equipped with a push button allowing the user to lock and unlock the anti-theft device by simply pressing it. The push buttons can be in the form of a keypad, allowing the user to enter a lock / unlock code. In this case, the anti-theft device 1 operates in the same way as a lockbox.

[0058] To enable the operation of this electromechanical lock, the anti-theft device 1 must be electrically powered. This can be achieved by connecting the device to an electrical network via a voltage-adjusting power converter. However, this approach is relatively complex to implement, as it requires such an electrical network to be located near the device 1 and / or significant civil engineering work to connect the device 1 to this network. Therefore, and advantageously, the anti-theft device 1 is equipped with at least one renewable energy source, this source being electrically connected to the electromechanical lock. The source can be connected to other components requiring electrical power from the device 1, as will be explained in a subsequent section. This renewable energy source may, in particular, include a solar panel.Advantageously, this source includes a mechanical energy harvester. It is of course possible to combine several renewable energy sources, for example, a solar panel combined with a mechanical energy harvester. The energy produced or recovered can be stored in storage devices, such as an electric battery or a capacitor bank. These storage devices may include a suitable voltage regulator. to provide a usable direct current electrical voltage by the components to which the storage devices are connected.

[0059] By way of example, the mechanical energy harvester can be associated with the second anti-theft part 6b, in order to recover energy from the rotational movement of this second part 6b when it is folded down onto the first part 6a by the user. In this example, the anti-theft shaft 6d can be coupled directly, or indirectly via a gear train, to a generator 17, for example a dynamo. The energy produced by the generator 17 can be stored in the storage means 19 and used by the electromechanical lock.

[0060] Returning to the description of figures la,lb,2a,2b,2c, a mechanical energy recovery unit is described, which is equipped with the preferred embodiment shown.

[0061] This energy harvester is thus formed of a cap 13 surmounting the top of the support 7. The cap 13 also includes a plate 14 pierced with a longitudinal opening 14a. The plate 14 is integral with the bottom of the cap 13. The plate 14 is positioned at the support, here the tubular post 7, when the cap 13 is positioned to cover the top of the support 7.

[0062] The plate 14 is held to the tubular post 7 by means of a return mechanism, here formed of two springs 15 visible on the [Fig.2c]. The springs 15 have upper ends 15a engaged respectively in transverse pins fixed to the tubular post 7 and lower ends 15b engaged respectively in retaining pins fixed to the plate 14. This arrangement allows the cap 13 to float relative to the tubular post 7: when pressure is applied to the upper part of the cap 14, it slides on the post 7, which tends to extend the springs 15. In this sliding movement, the support 7 enters the inner part of the cap 13. When the pressure applied to the upper part of the cap 14 is released, the springs 15 of the return mechanism tend to return the cap 13 to its original position, and the cap 13 tends to detach from the support 7.The stiffness of the springs 15 is much less than that of the compression spring 9c of the piston 9, so that the pressure applied to the cap 13 tends to preferentially move it on the upper part of the tubular post 7, rather than sliding the tubular post 7 on the foot 8.

[0063] In any event, the cap 13 is capable of moving longitudinally along the post 7 by application of an external force, and a return mechanism consisting of at least one spring 15 allows the cap 13 to be returned to its original position during a reverse movement when the application of the external force is discontinued. The mechanical energy recovery system can be configured so that the movement, and the reverse movement, can, for example, extend over a distance of approximately ten centimeters.

[0064] The mechanical energy recovery unit also includes a drive mechanism connected to the cap 13 and a generator 17, for converting the movement of the cap 13 into electrical energy. This drive mechanism includes a gear train having a toothed wheel or cylinder 16 engaged in the opening 14a of the plate 14. This opening 14a has a toothed contour, so that the longitudinal movement of the plate causes the toothed wheel or cylinder 16 to rotate. More generally, the gear train can be coupled to a rack carried by the plate 14 of the cap 13. Regardless of the nature of this coupling, the train also includes an end wheel or cylinder that drives a drive shaft 17a of a generator 17, for example a dynamo.It is therefore understood that the sliding of the cap 13 on the tubular pole 7 causes the drive shaft 17a of the generator 17 to rotate, via the drive mechanism. The electrical energy produced by the generator 17 can be stored in the storage means 19 to which the generator 17 is connected.

[0065] A user wishing to use the anti-theft device 1, which includes such a mechanical energy harvester, applies force to the top of the cap, for example by maintaining pressure on this top with their hand, in order to cause the cap to slide on the post 7 and generate sufficient energy to power the lock. This step can be carried out while the anti-theft device 1 is in the free position, before or after installing the bicycle on the first part of the lock 6a, or when the anti-theft device 1 is in the closed position.

[0066] According to a particularly advantageous development, the gear train, or an element thereof such as the toothed wheel or cylinder 16, is freewheeling. Consequently, the shaft 17a of the generator 17 is driven only during the reverse movement of the cap 13 back to its original position, when the user is no longer applying pressure to it. This development is advantageous because it protects the mechanical energy recovery system, and in particular the generator 17 and the toothed wheel 16, from violent forces that the user might apply to the cap and from the energy spikes generated by these violent forces. The reverse movement is well controlled by the return mechanism; it can be carried out at a suitable speed, by controlling the stiffness of the springs 15, to optimize the energy produced and making this energy independent of the intensity of the force applied by the user.The amount of energy produced is therefore made relatively independent of the user.

[0067] Control unit and method for controlling a lock

[0068] When the anti-theft device is electrically powered, either by a renewable energy source or by being connected to an electrical network, it is advantageous to equip the anti-theft device 1 with a control unit 18 to automate its operation. In particular, the control unit 18 can operate the lock, In this case, an electromechanical lock is used to lock the two anti-theft parts 6a and 6b together and, if necessary, to activate the ratchet 23, which locks the adjustment mechanism. This control unit 18 can be remotely operated from a portable processing device held by the user, typically a smartphone, i.e., a multifunction mobile phone.

[0069] It should be noted that the control unit 18 of the electromechanical lock and the method for controlling this lock constitute an aspect of the invention in itself. It can find application in numerous fields, and its use is therefore by no means limited to the anti-theft device 1 for a pedal-powered vehicle. For example, this control unit could be used for a key box, the electromechanical lock allowing the distal end of the lock bolt to be placed in a conventional strike plate fitted onto the box. It can be powered by a renewable energy source, such as the energy recovery unit described in a previous section. The following description of this control unit and the method for controlling it is, however, given in the context of the anti-theft device 1 described above.

[0070] Figure 4 schematically represents such a control unit 18 associated, in the example shown, with a generator 17 of a mechanical energy recovery system, but which could just as easily be associated with an electrical energy source of another kind. This control unit 18 is preferably housed in the support 7 of the anti-theft device 1 to facilitate its electrical connection to the generator 17 and the electromechanical lock. Advantageously, the control unit 20 is positioned as close as possible to the lock, in a secure housing, to limit the risk of break-in. The control unit 18 includes the storage means 19, battery or capacitor, electrically connected to the generator 17, in order to store the energy produced.These storage means deliver this electrical energy to all the components of the control unit 18 in order to power them electrically when a power switch KO is activated, as will be detailed later in this section of this description. Electrical energy is also delivered from the storage means 19 to the lock via connecting electrical wires (not shown in the figure).

[0071] It should be noted that a mechanical energy harvester is not likely to provide a large amount of energy, on the order of 1 Joule or a few Joules at most. It is therefore essential that the electrical consumption of the anti-theft device 1 be as low as possible. This electrical energy consumption is only necessary during the locking and unlocking sequences of the device 1. Therefore, these sequences are generally preceded by the user activating the mechanical energy harvester by applying pressure to the cap 13, as follows: was explained in one of the preceding paragraphs, in order to enable the operation of the control unit 18 and the electromechanical lock.

[0072] The control unit 18 includes a controller 20, for example a microcontroller or any other software- or hardware-programmable circuit. The controller 20 is configured to implement the lock control method, in coordination with the user's portable processing device.

[0073] The controller 20 is electrically connected to a communication circuit 21 comprising an antenna 21a. Advantageously, this communication circuit is a passive, short-range communication circuit of the NFC (near field communication) type. It is well known that this type of communication is particularly energy-efficient. The antenna 21a can be arranged in the cap 13, so that the user can, by simply placing their portable processing device on top of this cap 13, electromagnetically couple the antenna of this device to the antenna 21a of the control unit 18.

[0074] The antenna 21a is also connected to the controller 20. When the user attempts to connect to the control unit 18 via their portable processing device, the antenna of this device emits radiation. This radiation is captured by the antenna 21a of the control unit 18, and its energy is used to power the communication circuit 21 and the controller 20.

[0075] The communication circuit 21 initiates the pairing of the control unit 18 with the user's portable processing device. This pairing, initiated by the portable processing device, establishes communication between this device and the control unit 18.

[0076] The controller 20 is connected to the storage means 19 in order to draw energy from them and to be able to measure their energy level. A power switch KO is provided here, allowing the controller 20 to connect the control unit 18 to the storage means 19, to power this unit 18 electrically by these means rather than by exploiting the energy captured by the antenna 21a, this energy being necessarily limited.

[0077] The controller 20 is also electrically connected to a plurality of actuators, here an opening switch O and a closing switch C of the electromechanical lock. These switches allow the operation of magnetic actuators, as will be explained in a later section of this description. In such a configuration, which is particularly advantageous in terms of energy consumption, the controller 20 sends a short electrical pulse to one of the magnetic actuators of the lock by briefly flipping the switch opening or closing O,C in order to selectively engage or disengage the distal end of the bolt in the lock strike plate, here the locking orifice 10a of the cam-shaped roller 10.

[0078] The control unit 18 may also include or be connected to at least one sensor. In the example shown in [Fig. 4], this control unit 18 is connected to a first position sensor Kl of the second locking part 6b. This first sensor Kl, which may be in the form of a simple switch, produces a specific electrical signal when the second locking part 6b is folded down onto the first locking part 6a, i.e., when the locking device 1 is in the occupied position. The control unit 18 is also connected to a second position sensor K2, which is engaged or disengaged from the distal end of the locking bolt. This second sensor K2, which may also be in the form of a simple switch, produces a specific signal when the locking bolt 11 is engaged in the locking hole of the roller 10.

[0079] Other elements connected to or included within the control unit 18 can obviously be provided. In the illustrated example, this unit is connected to an indicator light 22, the light being located on the cap 13 of the support 7. This indicator light 22 is controlled by the controller 20 of the control unit 18, the color of the light being chosen to communicate the status of the anti-theft device 1 to the user. Thus, the absence of light can indicate that the control unit is not active, for example, that the energy storage capacity is depleted. A green light can indicate to the user that the anti-theft device 1 is in the free position and that the energy storage capacity is sufficient. A red light can indicate to the user that the anti-theft device 1 is in the occupied position.A yellow light may indicate that the anti-theft device 1 is not functional.

[0080] The user is equipped with their portable processing device. This device runs a computer application designed to interface with the control unit 20 of the anti-theft device 1 in order to control the locking (once the vehicle is properly positioned in / on this device 1) or to control the unlocking of the device 1 to release the vehicle. The locking / unlocking of the anti-theft device 1 must, of course, be secure, i.e., restricted to a single user. The portable processing device therefore emits electromagnetic radiation to establish a communication channel with the control unit 20. Furthermore, the user has previously activated the electrical energy harvester to sufficiently charge the storage means 19, on the order of one Joule or a few Joules.

[0081] The wake-up of the control unit 18 is initiated when the user "lights up" The antenna 21a of this unit, through the emitted electromagnetic radiation, produces the portable processing device, for example, by positioning this device on the cap 13, as close as possible to the antenna 21a. As already mentioned, the energy of this radiation is used to power the communication circuit 21 and the controller 20 during this activation phase. During this phase, the communication circuit 21 wakes up and pairs the control unit 18 with the user's portable processing device. At the end of this activation phase, the control unit 18 is awake and powered by the radiation received from the user's portable processing device; the control unit 18 and the portable processing device are then able to communicate with each other.

[0082] In this context, we now expose the processing carried out by the controller 20 of the control unit 18, upon its awakening.

[0083] In a first step, the controller 20 checks the energy level of the storage means 19, for example by measuring the supply voltage provided by these means 19. If it is determined that this energy level does not exceed a predetermined threshold, sufficient to carry out a locking or unlocking operation, the controller 20 communicates to the portable processing device that the energy level is too low. The indicator light 22 remains off, which indirectly signals to the user that the anti-theft device 1 is not functioning, and prompts them to reactivate the mechanical energy harvester. The controller can repeat this check of the charge level of the storage means 19 after a predetermined waiting time. If this energy level remains insufficient after repeating the check several times, the controller 20 switches off.

[0084] In the event that the level of energy held in the storage means 19 is deemed sufficient during this first step, greater than or equal to the determined threshold, the controller 20 triggers the KO switch allowing the control unit 18 to be powered by the storage means 19, rather than by the energy captured by the antenna 21a.

[0085] The controller checks the status of the anti-theft device 1 during a step, by measuring the status of the first and / or second sensor K1, K2. Depending on the status of these sensors K1, K2, and in particular the second sensor K2, the controller 20 controls the indicator light 22 to emit a green or red color indicating to the user the free or occupied state of the anti-theft device 1.

[0086] We now consider the case where the user, who has properly placed his vehicle in the anti-theft device 1, wishes to lock it.

[0087] In a third step, the controller 20 checks that the second part of the lock 6b is in the closed position via the first position sensor KL. If it is not, it indicates to the user to put this part of the lock in the closed position via the portable treatment device and possibly by a flashing of the indicator light 22.

[0088] In a fourth step, and once the second part of the anti-theft device 6b is in the closed position, the controller 20 sends a unique identification number to the portable processing device via the communication circuit 21. This unique number is received and stored by the portable processing device. The application running on the portable processing device may process this unique identification number to determine whether the user is authorized to use the anti-theft device 1. This could, for example, involve making a payment or taking a token from a set of available tokens. The portable processing device may contact a remote server to process this payment and / or obtain authorization, but this is not mandatory.In any event, after receiving and storing the unique identification number of the anti-theft device 1, and if the user is authorized to use the device, the user's portable processing device sends a unique locking code to the control unit 18. This unique locking code may have been generated by the portable processing device itself or received from a remote server.

[0089] In a fifth subsequent step of the process implemented by the controller 20 of the control unit 18, the latter receives the unique locking code and stores it, for example in a non-volatile memory of the controller 20.

[0090] Then, in a sixth locking step, the controller 20 sends a pulse to the input / output port connected to the closing contact C of the electromagnetic lock. The lock engages the anti-theft device 1. This locking step may include the actuation of a ratchet 23 to lock the adjustment mechanism, as described in a previous section. This locking step may also include verifying that the lock bolt 11 is properly engaged in the roller hole by measuring the status of the second sensor K2. The indicator light may be activated to emit a red color if the locking is successful, or an orange or flashing light otherwise.

[0091] At the end of the locking step, and when this locking is confirmed by the state of the second sensor K2, the controller 20 can send, in a final confirmation step, via the communication circuit 21, a message to the portable processing device indicating the successful locking of device 1. This transmission can be followed by the unpairing of the control unit 20 from the portable processing device and the switching to standby, or even the switching off of the control unit 20.

[0092] We now consider the case where the user wishes to remove the anti-theft device 1 from their vehicle, it being understood that the first and second steps described above- The previous steps were successfully completed.

[0093] In this context, the fourth and fifth steps of receiving and sending the unique identification number and the unique locking code are reproduced.

[0094] The controller 20 of the control unit 18, which receives the unique locking code, verifies that it corresponds to the code generated and stored when the vehicle was locked in the anti-theft device 1. If this is the case, the controller 20 sends a pulse to the input / output port connected to the opening contact O of the electromagnetic lock. The lock unlocks the anti-theft device 1.

[0095] The control unit 18 of the electromechanical lock and the method for controlling this lock, which have just been described, are particularly advantageous. The control unit uses the user's portable processing device to contact a remote administration server if necessary. It is not necessary for the control unit to be in direct contact with this server. Advantageously, therefore, an anti-theft device according to the invention is devoid of any means of communication capable of connecting it directly to a remote server, and thus comprises only a near-field communication circuit. The anti-theft device 1 can therefore remain simple and consume little electrical energy.

[0096] The control unit 18 is activated by the portable processing device, so it is not necessary to provide this unit with a continuous power supply. The power supply to the control unit is then switched from this first energy source to the second energy source, consisting of the storage means 19 associated with the renewable energy source. This switchover only occurs if the energy stored in the storage means 19 is sufficient to complete the locking / unlocking operation. It should therefore be noted that this unit is only powered during the short locking and unlocking sequences. The energy consumed during each of these sequences can be generated by the user at the desired time by activating the mechanical energy harvester.In particular, it is not necessary to maintain the power supply to the anti-theft device to keep the electromechanical lock closed, and only the locking and unlocking operations of this lock require a brief electrical pulse to transiently activate the magnetic actuators of the lock. Electromechanical lock

[0097] With reference to Figures 5a, 5b, 5c, 6a and 6b, an example of an embodiment of an electromechanical lock for a locking mechanism of the anti-theft device 1 is now presented. This lock constitutes an aspect of the invention in itself, without necessarily being incorporated into the anti-theft device 1 of the pedal-powered vehicle that is the subject of this description. By way of illustration, this lock can be used in a An anti-theft device for a key box. More generally, the lock can be used to secure access to an item stored in a locker. It can also be used to lock / unlock a gate.

[0098] Generally speaking, the lock bolt is intended to engage in a strike plate of a support element, the strike plate of the anti-theft device 1 of a pedal vehicle being formed in the example described in the preceding paragraphs by the opening provided in the roller 10 of the locking mechanism.

[0099] Figures 5a, 5b, and 5c show the cam-shaped roller 10 and the pawl 23. The roller 10 has an opening 10a, clearly visible in [Fig. 5a], for receiving the distal end of the bolt 11. The roller 10 also has a drive pin 10b for driving the pawl 23 when it comes into contact with the pawl stop 23a. The pawl 23 also includes a retaining lug 23c cooperating with a retaining tab 26 to hold the pawl 23 in a position in which the pawl notch 23a is away from and clear of the rack 12 of the adjustment mechanism. The retaining tab 26 is associated with a retaining spring 26a tending to make it descend towards the ratchet 23 to be placed behind the retaining lug 23c.The ratchet 23 is held under tension by a locking spring 32 tending to press the ratchet notch 23b against the rack 12 of the foot 8 when the retaining tab 26 is lifted to disengage from the retaining lug 23c.

[0100] The lock 24 also includes two magnetic actuators 27a, 27b (referred to as "electromagnets" in this field and in the remainder of this description) arranged on either side of the roller 10. Such an actuator includes a magnetic actuating block and a rod, the actuator being capable of selectively moving a rod in translation between an extended position and an inset position of the rod in the magnetic actuating block. A bistable mechanism disposed between the two electromagnets 27a, 27b carries the lock bolt 11. A bistable mechanism is defined as a mechanism that can assume two stable positions, the switching from one position to the other requiring an energy input. The activation of a first electromagnet 27a allows the bistable mechanism to switch into a first stable position in which the distal end of the bolt 11 is not engaged in the orifice 10a ([Fig.6a]), and the activation of a second electromagnet 27b allows the bistable mechanism to be switched into a second stable position in which the distal end of the bolt 11 is engaged in the orifice 10a ([Fig. 6b]). The electromagnets form the opening or closing switches O,C to which the control unit 18 is connected for selective activation.

[0101] With reference to Figures 6a, 6b, the bistable mechanism here comprises a rocker arm 28 including a rod 28c, one end of which is provided with a guide pin engaged in a groove of a lock support. The rocker arm 28 includes The two arms 28a and 28b also comprise the rods 29a and 29b of the electromagnets, respectively retaining them. These two arms meet at a second end of the shaft 28c, at a collar. The collar is provided with a collar axis 30, around which the rocker arm 28 and the locking bolt 11 are joined, and around which the bistable mechanism can pivot. The bistable mechanism also includes a pivoting spring 31 retained at the first end of the shaft 28c of the rocker arm 28 and at the bolt 11.

[0102] The retaining tab 26 is connected, via a sliding linkage, to the arm 28a of the rocker arm 28 coupled to the first electromagnet 27a. The retaining tab 26 is driven upwards when the rocker arm 28 tilts to lock it, thus releasing the pawl 23 to lock the adjustment mechanism. The retaining tab 26 is not driven downwards by the arm 28 when the rocker arm 28 tilts to unlock it. The retaining spring 26a tends to pull the retaining tab 26 back down towards the pawl 23 when the pawl 23 has been placed in the disengaged position from the rack 12 by raising the second part of the anti-theft device 6b.

[0103] Figures 6a and 6b show how the activation of either of the two electromagnets 27a,27b allows the bistable element to be positioned in either of these two stable states, i.e. states maintained even when the electromagnets are deactivated.

[0104] Fig. 5a shows the state of the lock 24 in the free position of the anti-theft device 1. When the second part of the anti-theft device 6b is moved away from the first part 6a by pivoting, the rotation of the anti-theft shaft 6d, the roller 10 and its pin 10b leads to the disengagement of the ratchet notch 23b from the rack 12 of the adjustment mechanism, the pin 10b coming into contact with the stop 23a and driving the ratchet 23. This pivoting opening of the second part of the anti-theft device 6b also leads to the compression of the locking spring 32, and to the placement of the retaining tab 26 behind the retaining lug 23c. This keeps the ratchet 23 in a position in which it is not engaged in the rack 12. The adjustment mechanism is released and the support 7 can slide on the foot 8. We observe on the [Fig.5a] that, in this free position of the anti-theft device 1a, with the second part of the anti-theft device 6b raised, the orifice 10a of the roller 10 is not positioned opposite the distal end of the lock bolt 11. It is therefore not possible to engage this end in the orifice to lock the device 1. .

[0105] Figure 5b shows the state of the lock 24 in the closed position of the anti-theft device 1, without the lock 24 having yet been activated. The roller 10 has been moved a quarter turn to position the opening 10a opposite the distal end of the locking bolt 11. The pawl 23 is still held by the tab 26 and held under tension by the locking spring 32.

[0106] Figure 5c shows the state of the lock 24 in the closed position of the anti-theft device 1 and after activation of the lock 24, that is, after the magnetic locking actuator 27b has been activated by the control unit 18 to tilt the bistable mechanism according to the configuration of [Fig. 6b]. The distal end of the lock bolt 11 is engaged in the hole 10a of the roller. Upon tilting, the bistable mechanism also lifts the retaining tab 26, releasing the pawl 23 and engaging the notch 23b in the rack of the adjusting mechanism to lock it.

[0107] An additional mechanism may be provided for locking the lock bolt 11 in the hole 10a of the roller 10. This additional mechanism is intended to prevent the lock bolt from tilting, for example, when violent shocks are applied to the support 7 during an attempted break-in, as these shocks tend to cause the lock bolt to tilt.The additional mechanism can be carried by the retaining tab 26, for example an extension of this tab 26 covering the lateral face of the orifice 10a, so that the distal end of the retaining bolt cannot escape from this orifice 10a when the tab is in the raised position.

[0108] Of course the invention is not limited to the modes of implementation described and alternative embodiments can be made without departing from the scope of the invention as defined by the claims.

Claims

Claims

1. Anti-theft device (1) for a pedal-driven vehicle, the device comprising: a. a first anti-theft part (6a), secured to a support (7), and having a housing (6c) intended to receive a pedal crank; b. a second anti-theft part (6b), carried by the support (7), intended to fold down onto the first anti-theft part (6a) to cover it and block the pedal crank; c. A locking mechanism, also carried by the support (7), intended to lock the second anti-theft part (6b) onto the first anti-theft part (6a); the anti-theft device (1) being characterized in that it comprises an adjustment mechanism for adjusting an elevation of the first anti-theft part (6a) relative to the ground, the locking mechanism being further configured to block the adjustment mechanism when the second anti-theft part (6b) is locked onto the first anti-theft part (6a) and thus freeze its elevation.

2. Anti-theft device (1) according to the preceding claim in which the support (7) carries an anti-theft axis (6d), the second anti-theft part (6b) being connected to the anti-theft axis (6d) so as to be pivotally folded onto the first anti-theft part (6a).

3. An anti-theft device (1) according to one of the preceding claims wherein the adjustment mechanism comprises a rack (12) and the locking mechanism comprises a pawl (23) configured to engage in the rack (12).

4. Anti-theft device (1) according to one of the preceding claims in which the support (7) is a tubular post extending in a substantially vertical longitudinal direction.

5. Anti-theft device (1) according to the preceding claim wherein the adjustment mechanism comprises a tubular foot (6) intended to rest on the ground, the tubular foot (6) being configured to engage in the tubular post (7) and allow the latter to slide.

6. An anti-theft device (1) according to the preceding claim wherein the adjustment mechanism comprises a piston (9) comprising a piston head (9b), the piston being disposed in the tubular foot (6) and the head of piston supporting the tubular post (7).

7. An anti-theft device (1) according to the preceding claim wherein the piston (9) comprises a piston body (9a), a compression spring (9c) disposed in the piston body (9a) and a rod (9d) for retaining the compression spring (9c) in the piston body (9a).

8. Anti-theft device (1) according to one of claims 6 to 7 in which the locking mechanism comprises a roller (10) integral with the anti-theft axis (6d) and in contact with the piston (9).

9. Anti-theft device (1) according to the preceding claim in which the roller (10) of the locking mechanism takes the form of a cam.

10. Anti-theft device (1) according to one of the two preceding claims in which the locking mechanism comprises a lock, the lock comprising a lock bolt (11) intended to engage in a locking orifice (10a) of the roller (10).

11. An anti-theft device (1) according to the preceding claim wherein the lock is electrically powered to selectively engage and disengage the lock bolt (11) from the locking hole (10a) of the roller (10).

12. Anti-theft device (1) according to one of claims 10 to 11 comprising a renewable energy source associated with the lock.

13. Anti-theft device (1) according to the preceding claim in which the renewable energy source is a mechanical energy harvester.

14. Anti-theft device (1) according to the preceding claim in which the mechanical energy recovery device comprises: a. A cap (13) arranged on the top of the support (7), the cap (13) being able to move in longitudinal translation from an original position on the support by application of an external force; b. A return mechanism (15) for replacing, during a return movement, the cap (13) in its original position when the application of the external force is interrupted; c. A drive mechanism connected to the cap (13) and to a generator (17), for transforming the movement of the cap into electrical energy.

15. Anti-theft device (1) according to the preceding claim in which the drive mechanism is freewheel, so that the generator (17) is only driven during the return movement of the cover (13).

16. An anti-theft device (1) according to one of claims 11 to 15 wherein the locking mechanism comprises a control unit (18) for operating the lock, the control unit (18) comprising a near field communication circuit.

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