FR3032407A1 - ANTI-THEFT LOCK HAVING SECURITY OF SECOND RANK WHEN THE TITLE IS ANTI-THEFT IS FORCE BY A THIEF - Google Patents

Abstract

The invention relates to a lock with a lock. It has at least one torque sensor that is actuated when the torque on the lock cylinder and / or on the steering wheel is abnormally high, this torque sensor actuates a second-rate security, in compliance with the power relations defined. It consists of a switch (5), a key (6), a barrel (12), pins (17) for locking a barrel (12). The said barrel (12) rotates so that its cam boss (12a) acts on the end of the finger (15) for locking the flywheel (2), said telescopic finger (15) is expelled from its seat (3a) by tangential effect when the steering wheel (2) is on demand, which actuates a security of second rank. The core (11) is integral with the body (8) of the contactor (5) through the wire (10) which integrally enters the body (8) by the segment (10a), then crosses integrally the core (11) by its segment (10c) and finally leaves solidarily by its segment (10b). Before the said pins (17) break due to the abnormal torque exerted by the thief on the barrel (12), the wire (10) is sheared, which actuates another security second rank. The lock lock according to the invention is particularly intended to equip motorized vehicles such as: cars, trucks, motorcycles, scooters, boats ...

Description

The present invention relates to a lock lock with a security of second rank when it is forced by a thief. Lock locks have traditionally been used for doors or safes or, more particularly for motor vehicles, are keyed contactors with type ("<Neiman") steering locks which make it possible in the first rank to provide security based on a deterrence based on the destruction of the locking pins of the lock cylinder, or the destruction of the steering lock finger in order to respectively start the vehicle and then be able to drive it.

This type of deterrence is not effective enough for motivated thieves who, armed for example with a large screwdriver and possibly a crowbar or a crowbar, quickly overcome the said antitheft by forcing on the lock and / or the steering wheel of the vehicle. Once the lock is forced or broken the vehicle can be used immediately ... I! The lock provided with a lock according to the invention overcomes these disadvantages. It comprises in fact at least one torque sensor which controls the torque on the barrel of the lock and / or on the steering wheel to detect if it is abnormally high, exaggerated torque which is exerted by the thief during a attempted theft by forcing on said antitheft device, said torque detector actuates for a torque value defined by the manufacturer a second-rank security, in compliance with the following power relationships: - Contact Torque (CC) CC1 = maximum torque exerted on the key (and therefore the barrel) to put the ignition and start the vehicle, or open a door or a safe. - Steering torque (CD) CD1 = maximum torque exerted on the steering wheel of a vehicle to drive it in any situation. CC2 = torque required to actuate the abnormally high torque sensor on the cylinder, and thus actuate the second-rank safety. - CD2 = torque required to actuate the abnormally high torque sensor exerted on the steering wheel, and thus actuate the second-rank safety. CC3 = torque needed to exert for a thief on the false key (screwdriver for example) to break the security pawns of the lock. 3032407 2 - CD3 = torque required for a thief on the steering wheel (lever bar for example) to break the locking finger of the lock. CC1 * smaller than CC2 which is smaller than CC3. CD1 smaller than CD2 which is smaller than CD3.

According to a particular embodiment, the abnormally high torque detection means exerted on the barrel of the lock is a core interposed between said barrel (which is normally driven by the key) of said lock and the fixed body of the contactor. . In order to detect an attempted forcing flight on said barrel, said interface core 10 which normally allows rotation of the barrel when the key pushes the pins which are pushed by the springs, is in the case of a flight attempt to remain integral with the barrel, and it is therefore this barrel and core assembly which rotates in the body of the contactor when there is attempted vo!, this rotation of the core will: break or disjunct or interrupt or otherwise connect an electrical circuit 15. It is the abnormally high torque detection means that defines the value of the resistive torque which maintains said core facing the body of the contactor; this detection means co-operates with the second-rank security, thus being able to actuate, alone or in combination, the following element (s), given by way of example and not exhaustive ... - a circuit breaker on the general power supply (starter, ignition, lighting, signaling ...) - a call on the mobile phone of the vehicle owner. - a geolocation if after the attempted theft, the vehicle is loaded 25 despite all on a trailer or truck ... - activation of hazard warning lights and / or a buzzer. According to a particularly economical embodiment the detection means associated with the core is simply achieved by the crossing of the contactor supply wire, it is this wire which by its shear strength, calibrates the resistive torque of the core; when this resistant torque is exceeded by the action of the thief who forces on the barrel, the electric wire is cut at least in one place, which gives a maximum of three segments of wire which are: - an input wire, a wire central and an output wire. No longer having a resistive torque, the barrel can no longer rotate the connection plate (which is secured thereto) opposite the distribution plate, which itself is integral with the body of the core; thus prohibiting any electrical connection in addition to the circuit breaker made by the cutting of the wire. According to a more sophisticated embodiment, the detection means associated with the core is achieved by a measuring device (torque meter) or maximum limit which actuates the second-rank security when the torque exerted on the barrel by the thief exceeds the permissible torque calibrated by the vehicle manufacturer. With regard to the antitheft blocking part of the steering, two possibilities integrable together or individually, are proposed by the invention: 1) The locking finger of the steering is maintained reinforced and even more penetrating in the steering column when the abnormal torque sensor is actuated 2nd) Conversely, the locking pin (consisting of two telescopic elements 15 separated from each other by a calibrated spring) of the direction is driven from its housing in the steering column when the detector of abnormal torque is actuated. For this the abnormally high torque detection means exerted by the thief on the steering wheel and thus the steering column is a housing in the steering column which allows in conjugation of shapes with the end of the locking finger to obtain a tangential effect that drives the said finger that is shrunken in length, which causes (contact overload, optical contact ...) the action of another second-rank security when the torque exerted on the steering wheel by the thief exceeds the permissible torque calibrated by the vehicle manufacturer. In a safe manner after an attempted theft, the abnormally high torque detection means when it is of the reusable type (circuit breaker for example) can only be reactivated by an authorized professional having the specific tools necessary to reset the abnormally high torque detection device. Indeed the connections and the electrical connections will have to be controlled, but especially if the blocking finger has been expelled from its housing in the steering column, the directional assembly will have to be checked! The accompanying drawings illustrate the invention: FIG. 1 shows a 3/4 upper left view of the lock lock according to the invention in a car configuration. FIG. 2 is a front view of the configuration of FIG. 1. FIG. 3 is a top view of the configuration of FIG. 1. FIGS. 4, 5, 6 and 7 show a sectional view of the view of FIGS. 2 and 3 in the rolling position of the car. Figures 4, 8, 9 and 10 show a sectional view of the view of Figures 2 and 3 in the parking position of the car. Figures 11, 12, 13 and 14 show a sectional view the view of Figures 2 and 3 in the flight attempt position of the car. With reference to these drawings, the car (1) has a steering wheel (2) integral with a steering column (3). On the frame (4) of this car (1) and close to the steering column (3) is fixed by screws (7) a contactor (5) of electric circuits which is actuated by a key (6). . Preferably, integrally or reported, the body of the steering bearing (8) which incorporates the steering lock mechanism is integral with the switch (5). In a rolling situation, the key (6) was inserted into the keyhole 15 of the contactor (5), for this said key (6) had to push the sets of pins (17) lock barrel (12). ), these pins (17) are active under the thrust of the springs (18); the barrel (12) thus released from its lock could rotate, taking with it the connection plate (14) which is secured thereto. This plate (14) allows for example the connection on the plate (integral with the body of the contactor (8)) distribution (13) of the main power supply by the wire (10b) with the starter, the ignition, the lighting ... represented by the wires (A, B, C). In this situation the barrel (12) has rotated sufficiently that its cam boss (12a) no longer acts on the end of the finger (15), which allows the spring (16) to push on the said finger (15). ), perfectly releasing the housing (3a) of the steering column (3), leaving the steering wheel (2) fully controllable by the driver of the vehicle (1). The core (11) is integral with the body (8) of the contactor (5) through the wire (10) which integrally enters the body (8) by the segment (10a), then crosses integrally the core (11) by its segment (10c) and finally leaves solidly by its segment (10b) of the body (8).

As previously mentioned, preferably, the segment (10c) exiting the body (8), will supply the distribution plate (13). In parking situation, the key (6) has been removed from the lock of the switch (5), for this before being removed said key (6) has returned to neutral, the barrel (12) is thus locked by the pawns (17). In this situation the barrel (12) having reversed the previous rotation, its cam boss (12a) acts on the end of the finger (15), which further compresses the spring (16); said finger (15) penetrates the housing (3a) of the steering column (3), which blocks the steering wheel (2). The core (11) is as previously secured to the body (8) of the contactor (5) through the wire (10) which integrally enters the body (8) by the segment (10a), integrally through the core (11) by its segment (10c) and leaves solidarily by its segment (10b). According to a preferred variant visible in FIG. 10, the steering lock finger (15) is composed of: a female telescopic finger (15b) A male telescopic finger (15a) A spring (15c) To be driven by Tangential effect, the closed end of the finger (15a) will have a shape conjugate with the housing (3a) on board (3b) of the steering column (3).

15 In the event of an attempted theft, a false key (screwdriver for example) (19) has been forced into the keyhole of the contactor (5), but can not push all the pins (17) lock barrel (12); the barrel (12) still lock can not turn without exerting an abnormal torque on the barrel (12). Before said pins (17) break, the wire (10) is sheared (in this case) into 3 segments (10a, 10c, 10b), which at least constitutes a circuit breaker which breaks down the vehicle . In this situation the barrel (12) still integral with the core (11) has rotated sufficiently that its cam boss (12a) become ineffective, has been replaced by the cam boss (11a) of the core (11), thereby penetrating plus the housing (3a) of the steering column (3). By way of non-limiting example, the lock lock will have a greater deterrence against theft by making the main lead wire (10) as inaccessible as possible, and with protection as shielded as possible. The lock lock according to the invention is particularly intended to equip motorized vehicles such as: cars, trucks, motorcycles, scooters, boats ...

Claims (6)

REVENDICATIONS1. Anti-theft lock characterized in that during an attempted theft by forcing said anti-theft (5), an abnormally high torque sensor acts on said antitheft by operating a second-rank security, in compliance with the 5 following power-ratios: Contact torque (DC) CC1 = maximum torque applied to the key (6) to switch on the ignition and start the vehicle (1), or to open a door or a safe. Steering torque (CD) CD1 = maximum torque exerted on the steering wheel (2) of a vehicle (1) to drive it in all situations. 10 CC2 = torque required to actuate the abnormally high torque sensor exerted on the barrel (12), and thus actuate the second-rank security. CD2 = the torque required to actuate the abnormally high torque sensor on the flywheel (2), thereby activating second-row safety. CC3 = torque necessary to exert for a thief on the false key (19) (screwdriver 15 for example) to break the security pins (17) of the lock (5). CD3 = torque required for a thief on the steering wheel (2) (lever bar for example) to break the locking finger (15) of the lock (5) _ CC1 smaller than CC2 which is smaller than CC3 CD1 smaller than CD2 which is smaller than CD3 20 2) Antitheft (5) according to claim 1 characterized in that the abnormally high torque detection means exerted on the barrel (12) is a core (11) interposed between said barrel (12) (which is normally driven by the key) of said lock and the fixed body (8) of the contactor; in order to detect an attempted forcing flight on said barrel (12), said interface core (11) (which normally allows rotation of the barrel (12) when the key (6) pushes the pins (17) which are pushed by the springs (18)), is in the case of a flight attempt remained secured to the barrel (12), and it is therefore this barrel assembly (12) and core (11) which rotates in the body of the contactor (8) when there is attempted theft, this rotation of the core (11) will: break or trip or interrupt or connect an electrical circuit; it is the abnormally high torque detection means that defines the value of the resisting torque which maintains said core (11) facing the body (8) of the contactor; this detection means co-operates with second-rank security, thus being able to actuate, alone or in combination, the following element (s): - a circuit breaker on the general power supply (starter, ignition, lighting, signaling ...) a call on the mobile phone of the owner of the vehicle. - a geolocation if after the attempted theft, the vehicle is loaded 5 despite everything on a trailer or truck ... - activation of hazard warning lights and / or a buzzer ... 3) anti-theft device (5) according to claim 2 characterized in that the detection means associated with the core (11) is simply performed by the passage of the wire (10) of the power supply of the contactor, it is this wire (10) which, by its shear strength, calibrates the resistive torque of the core (11); when this resistant torque is exceeded by the action of the thief who forces on the barrel (12), the electric wire (10) is cut at least in one place which gives a maximum of three segments of wire (10) which are: - input wire (10a) in the body (8), core wire (10c) in the core (11), output wire (10b) in the body (8), having no more resistant torque, the barrel (12) can no longer rotate (and which is integral with) the connecting plate (14) facing the distribution plate (13), which is integral with the core (11); thus prohibiting any electrical connection in addition to the circuit breaker made by cutting the wire (10). 20 4) anti-theft device (5) according to claim 2 characterized in that the detection means associated with the core (11) is performed by a measuring device (torque meter) or maximum limit which actuates the second-rank security when the torque exerted on the barrel (12) by the thief exceeds the allowable torque calibrated by the manufacturer of the vehicle. 25 5) Anti-theft device (5) according to claim 1 characterized in that the abnormally high torque detection means exerted by the thief on the steering wheel (2) and therefore the steering column (3), is a housing (3a) made in the steering column (3), which allows in form conjugation with the end of the locking finger (15) to obtain a tangential effect which drives said finger (15) which shrinks in length which causes the safety action of second rank, when the torque exerted on the steering wheel (21 by the thief exceeds the allowable torque calibrated by the vehicle manufacturer; the locking finger (15), (preferably consisting of two telescopic elements (15b) and (15a) spaced apart by a calibrated spring (15c)), the steering column (3) is driven from its housing 3032407 8 in said steering column, which is the abnormal torque sensor and therefore actuates another second-class security. 6) `Ativol (5) according to claim 4 or 5 characterized in that the abnormally high torque detection means when it is of the reusable type (circuit breaker for example) can be reactivated only by an authorized professional having the tooling specific requirement to reset the abnormally high torque detection device. 15 20 25 30 35