FR3114116A1 - Closing system consisting of a tumbler lock with twist lock serving as a switch for one or more electric locks and this or these electric locks - Google Patents

Abstract

Closing system consisting of a tumbler lock with twist lock serving as a switch for one or more electric locks and this or these electric locks. The system according to the invention makes it possible to increase the security, robustness and reliability of a locking system while maintaining simplicity and a single key for the user. It consists of a lock (1) with pins (41, 42) with a rotating latch (27) (47) fixed inside the volume to be protected on which is secured an electric switch (6) which will be actuated by this twistlock. This switch controls the opening of one or more electric locks (20) also arranged inside the volume to be protected. This or these electric locks (20) blocking the door from the inside by inserting their bolt (16) into the frame of the door (13) or by blocking the rotation of a rod (11) of an espagnolette ( 51) thanks to the keeper (15) fixed on this rod (11). The system according to the invention is particularly intended to close the rear doors of trailers or containers.

Description

Closing system consisting of a tumbler lock with twist lock serving as a switch for one or more electric locks and this or these electric locks

The invention relates to a locking system consisting of a tumbler lock with a twist lock serving as a switch for one or more electric locks and this or these electric locks

State of the art

A recent invention relates to a locking device comprising at least one tumbler lock which has a lock housing, at least one twist lock arranged inside the lock housing in such a way as to be rotatable about a rotation axis between a locking position and a release position and at least one locking device which can be unlocked by actuation of the key, which has locking pins arranged so as to be movable axially and parallel to the axis of the lock in order to lock the rotation of the twist lock located in the locked position. This system is extremely reliable and resists break-in attempts, in particular by picking or drilling.

This system is particularly suitable for closing trucks or trunks, for example.

The system according to the invention will take this lock system and use the twist lock that composes it to form an electric switch. This switch will make it possible to open one or more electric locks placed inside the volume to be protected. This or these electric lock(s) can even block other locking systems of the espagnolette type widely used on trucks or containers. The only way to operate this or these electric locks from the outside will therefore be to turn the rotor of the twist lock using the key.

Disclosure of Invention .

An object of the invention is to provide a mixed locking system composed of at least one tumbler lock with twist lock and at least one electric lock whose electric control consists of the twist lock of the first lock. Advantageous configurations are indicated in the following description and the figures, these configurations possibly constituting, in themselves or in combination of at least two of these configurations with each other, an advantageous or preferred improvement of the invention.

A locking device according to the invention has a tumbler pin lock with twist lock fixed on the interior part of the door of the volume to be protected, the key being introduced into the lock by the exterior side of the door by crossing it. This tumbler lock has a lock case composed of a lid, an intermediate block and a bottom, at least one twist lock arranged inside the lock case so as to be able to rotate around an axis of rotation between a locking position and a release position and at least one locking device which can be unlocked by actuation of the key, which has locking pins arranged so as to be movable axially and parallel to the axis of the lock for locking a rotation of the twistlock being in the locking position, and at least one locking bolt which can be inserted partially and radially with respect to the axis of rotation in a bolt housing of the lock case, the twistlock being formed in the form of a plate extending perpendicular to the axis of rotation and an outer envelope surface of the twistlock, arranged radially outside with respect to the axis of rotation tion, and a bolt end portion of the locking bolt which can be inserted into the lock case, being formed to fit one another such that the twist lock locks the bolt end portion introduced into the lock case in the locking position and releases it in the release position.

The box can be fixed at the choice of the person skilled in the art on the fixed part or the movable door and the bolt being fixed on the other part, either in a movable way to form a bolt with a direction of translation more or less parallel to the door, the bolt handle being outside the volume to be protected, or the bolt is fixed to the exterior part of the door and approximately perpendicular to it and enters the lock from the outside inwards by locking into it.

According to a first embodiment, the twist lock is used as an electric switch placed on an electric circuit formed by a wire coming from an electric generator (battery or battery for example) and another going to supply at least one electric lock and a wire electric connecting directly or indirectly via the ground wire for example the electric lock(s) to the other pole of the generator.

According to an advantageous configuration, the switch consists on the one hand of an actuator fixed to the bottom of the mechanical lock by the means preferred by those skilled in the art and in such a way that it can turn around a axis perpendicular to it and on which is connected an electrical wire insulated from the mechanical lock by an electrical insulator and on the other hand a contactor fixed to the bottom of the mechanical lock or to a fixed part close to the mechanical lock and electrically insulated, the contactor being connected to an electric wire, the actuator is moved by a lug fixed to the rotor by the means preferred by those skilled in the art and it is engaged in a bore forming a slide of the actuator of such that the actuator and the contactor do not touch, which cuts the electric circuit when the lock is in the closed position, and that the actuator and the contactor touch, which then closes the electric circuit when the lock is in open position.

According to another advantageous configuration, the actuator and its insulator are fixed directly to the lock, the actuator having a shape and a dimension such that they make it possible to make contact with the contactor when the lock is in the open position.

An electrical contactor is fixed by the means preferred by those skilled in the art on the box or a fixed part close to the box so that the actuator comes to touch the contactor when the lock is in the open position and does not touch it when the lock is in the closed position. The actuator and the contactor are each connected to an electric wire, the electric lock or locks are arranged inside the volume to be protected and block the door by the arrangement preferred by those skilled in the art (verrins, bolts fitting into strikes in the door frame, for example). The control of these electric locks is absolutely inaccessible from the outside, which makes this system particularly difficult to force.

According to an advantageous configuration, and to reinforce security, the electric lock or locks are in the closed position in the absence of electrical voltage, when the switch is in the open position, that is to say when the pin lock is locked. This configuration can be achieved by means for example of a spring system which forces the bolt to remain extended, in the closed position as long as a force, for example magnetic, does not pull it into the open position.

According to an advantageous configuration, in the case of use of espagnolette closures, the rod or rods are installed partly or totally inside the volume to be protected and are maintained by guides against the door, on its interior face. The hooks or protrusion forming the bolts of the espagnolette(s) fit into or surround the strikers of this or these espagnolette(s). The keeps of the espagnolettes are fixed to the frame of the door or to any fixed part.

A striker structure for the electric lock(s) is attached to the rod(s) by the means preferred by those skilled in the art. This striker can receive a bolt from the electric lock(s) which will be introduced into this striker in the closed position or be made up of a projection which will abut against the bolt in the closed position. This or these bolts of the electric locks prevent the rotation of the rod(s) and therefore the opening of the espagnolette(s).

According to another advantageous configuration, a handle of an espagnolette will have its free end modified to form the bolt or fixed to the bolt of the twist-bolt tumbler lock.

This handle of the espagnolette will therefore be blocked by the tumbler lock when it is locked.

The system according to the invention therefore makes it possible to take full advantage of the robustness of the recently invented twist-lock tumbler pin lock. By adapting an electrical switch activated automatically when opening or closing the twist lock, security is extremely enhanced, without the user needing several keys. The section of the locking system of an espagnolette handle does not allow the door to be opened because the twist lock remaining in the closed position, the electric locks continue to block the door from the inside. The reliability of electric locks and their simplicity make it possible to ensure faultless operation without generating a prohibitive additional cost.

The invention will be explained by way of example below with reference to the appended figures with the aid of preferred embodiments, the characteristics explained below being able each time, individually or in combination of at least two of these characteristics constitute an advantageous or preferred improvement of the invention.

The means of fixing the various elements to each other or to the doors, frames or frames are not described because they are within the discretion of those skilled in the art and do not add any interesting elements to the description of the system. according to the invention.

In this embodiment of the device according to the invention, the component parts can be made of the material recommended by those skilled in the art for the use for which it is intended. It can be used metal, composite or plastic or mixed materials, although metal will probably be preferred for the majority of cases.

Brief description of figures

There illustrates a schematic and perspective representation from the inside of the volume to be protected of an embodiment of a locking system according to the invention in the closed position

There illustrates a schematic and close-up perspective representation of the twist lock tumbler lock in the closed position

There illustrates a schematic and close-up perspective representation of the twist lock tumbler lock in the closed position with the back removed

There illustrates a vertical section of the twist lock tumbler lock passing through the axis of the rotor

There shows a horizontal section of the twist lock tumbler lock passing through the middle of the key in position in the lock

There illustrates a schematic and perspective representation from the inside of the volume to be protected of an example embodiment for a locking system according to the invention in the unlocked, half-open position

There illustrates a schematic and close-up perspective representation of the twist lock tumbler lock in the open position

There illustrates a schematic and close-up perspective representation of the twist lock tumbler tumbler lock in the open position with the back removed

Detailed description of figures

In the figures, the identical components or the same functions have been provided with the same reference numbers. Repeated description of such components may be omitted from the following description of the figures.

There illustrates a schematic representation in perspective from the inside of the volume to be protected of an embodiment of a locking system according to the invention in the closed position. This system is composed of a tumbler pin lock with twist lock (1), an electric lock (20) and an espagnolette-type closure (51), all these closure systems being fixed on the interior part of the volume to be protected on the inside face of the door opening (13).

The electric circuit is made up of a battery-type electric generator (2) which can be dedicated to the system according to the invention or come from an external source such as for example the battery of the tractor, or even from the mains, one contact of which is connected by an electric wire (3) to the switch (6) fixed to the pin lock (1), and the other pad of which is connected to the electric lock (20) by an electric wire (4), the electric circuit (3, 4, 5, 6, 18, 2) supplying the electric lock (20) being completed by an electric wire (5) connecting the electric lock (20) to the switch (6).

Without this exemplary embodiment being limiting, the electric lock (20) is composed in this exemplary embodiment of an electromagnet (18) which attracts a magnetic part (21) of the pull arm (19) when the electromagnet (18) is energized. The draw arm (19) is freely attached to the bolt (16). A spring system (17), for example in traction, maintains the bolt (16) in its closed extended position when the pull arm (19) does not pull it. This diagrammatic electric lock (20) can be enclosed in a box fixed to the door (13) or each component fixed separately to it.

The bolt (16) of the electric lock (20) is introduced into its keeper (15) in the closed position. The strike plate (15) and the electric lock (20) can be installed at the places deemed useful to prevent the opening of the door (13) by blocking it from the inside. The striker can be for example on the frame of the door, on the frame (12) in order to constitute a main mode of closing or as here, fixed to the rod of a espagnolette (51) in order to be able to block its rotation. when the bolt (16) of the electric lock (20) is engaged. This keeper (15) has the shape and size adapted to the bolt (16) chosen by the person skilled in the art. It may consist, as shown here, of a structure pierced with a hole of diameter greater than that of the bolt (16), but it could also for example consist of a plate blocking a bolt (16) duck.

The main closing system shown here is a espagnolette type system (51) commonly used for example to close truck trailers or containers. There are on current models of truck or containers from one to three espagnolette (51) per door (13). Each espagnolette (51) consists of a rod (11) passing through guides (52) fixed here on the internal face of the door (13). An upper (14) and lower (9) hook are fixed perpendicularly to the ends of the rod (11) so that the rotation of the rod (11) drives (50) the hooks (9, 14) and blocks them around their latch (10) in the closed position. The striker (10) is in this example formed by a vertical bar fixed to the interior face of the frame (12), but it is often formed by an upper striker and a lower striker fixed to the frame of the door. A handle (8) accessible from outside the volume to be protected is fixed to the rod (11) and allows it to be rotated around its axis to move the latch from a closed position when the handle (8) is pushed towards the door (13) to an open position when the handle (8) is pulled towards the user.

The handle (8) is extended at its free end by a bolt (7) which will be able to be introduced into a pin lock with twist lock (1). This bolt (7) is formed directly in the end of the handle (8) or is fixed thereto. This bolt (7) is then the only part with the key (22) to penetrate into the volume to be protected, the lock (1) being fixed inside the latter by the means preferred by the man of the art.

On this and in this exemplary embodiment, the lock (1) is arranged with the bottom (23) upwards and suggests the window (35) cut out in this bottom (23) and the bolt (27) whose rotation (47) will allow to open or close the electric circuit (3, 4, 5, 6, 18, 2) by forming a switch (6).

In this , the door (20) is closed and locked by the latch (51), with its handle (8) blocked in the tumbler pin lock with twist lock (1) and its rod (11) blocked by the bolt (16) of the electric lock (20), not energized by the electric generator (2).

There illustrates a schematic representation and in perspective in close view of the lock (1) with twist lock pins in the closed position, the bottom (23) being upwards. The electric generator (2), the electric circuit (3, 4, 5, 6, 18, 2) and the electromagnet (18) of the electric lock (20) are also schematized without being to scale or placed topographically. The switch (6) of the electrical circuit (3, 4, 5, 6, 18, 2) is visible in its open position.

You can see the lock case (1) consisting of a cover (25), an intermediate block (24) and a bottom (23) in which a window (35) has been bored. Through this window (35) the rotor (27) forming the lock is fixed so as to allow its rotation (47) around its axis (26) to the bottom (23) and to the intermediate block (24). Plugs (28) of pin wells (41, 42) are accessible through window (35) to allow factory insertion of pins (41, 42), pin spring (40) and plug (28) in each well when the lock is in the open position with the lower pins (41) aligned axially with the upper pins (42) which correspond to them. In this exemplary embodiment, the pins (41, 42) and the pin springs (40) are held in their wells by being blocked at the top by the cover and at the bottom by the plugs (28).

The bolt (7) and the key (22) are pushed (45, 46) into the lock (1).

The switch (6) is visible fixed under the bottom (23).

This switch consists of a contactor (34) connected to an electric wire (3), this contactor (34) being fixed under the bottom (23) by means that do not conduct electricity and are electrically insulated from this bottom by a insulator (33) and an actuator (29) connected to an electric wire (5) and insulated from the case by an insulator (32). The actuator (29) is moved by the movement (47) of the rotor (27) so that there is no contact between the actuator (29) and the contactor (34) when the lock (27 ) is in the closed position as here, and that the two contacts (29, 34) touch when the lock (27) is in the open position, thus closing the switch (6). In this exemplary embodiment, the actuator (29) is fixed by an electrically non-conductive means chosen by those skilled in the art at the bottom (23) so that it can rotate freely around this fixing point on a plane parallel to the bottom (23). A bore in the actuator forms a slide (30) in which a lug (31) fixed to the rotor (27) slides radially.

There illustrates a schematic representation and in perspective in close view of the tumbler lock with twist lock in the closed position with the back removed in order to better see the constituent elements of the lock (1).

The key (22) is in place in the lock (1) and the bolt (7) is locked by a lug (36) engaged in a notch (37) of the rotor (27). The axis (26) passes through the rotor (27) thanks to a bore made in its center with a diameter very slightly greater than the diameter of the axis (26) so that the latter can freely rotate (47) around it and protrudes to be engaged in a bottom bore (23) not visible here. A washer (39) holds the rotor (27) in the correct position against the intermediate block (24). A spring (38) is fixed in tension (48) between the intermediate block (24) and the rotor (27) and maintains the latch (27) in the open position in the absence of blocking produced by the pins (41, 42) partially engaged in the lower shafts or the upper shafts. This voltage (48) ensures permanent electrical contact between the actuator (29) and the contactor (34) when the lock (1) is unlocked and the bolt (7) pulled out (46).

There illustrates a vertical section of the twist lock pin lock (1) passing through the axis (26) of the rotor in the closed and unlocked position.

The bolt (7) is engaged in the lock (1) between the bottom (23) and the intermediate block (24) and the lug (36) is engaged in the notch (37) of the rotor (27).

The cover (25) has a bore to receive the axis (26) in order to reinforce the correct position of the intermediate block (24) with respect to the cover (25). A bore under the cover forms a housing for the key (22) which is shown here in section. It is, for example, a flat key (22) with holes crossing entirely or not its thickness so that the upper (42) and lower (41) pins, pushed by the pin springs (40) are in the unlocking position. . The interfaces between the upper pins (42) and the lower pins (41) are all on the same plane corresponding to the cutting plane between the upper face of the rotor (27) and the lower face of the intermediate block (24).

In this exemplary embodiment, the pin (26) is formed by machining the intermediate block (24). The rotor (27) turns freely around this axis (26) and is kept in contact against the intermediate block (24) without being blocked thanks to a suitable bore of the rotor (27) allowing the installation of a washer (39 ) fixed for example by a screw on the axis (26).

There illustrates a horizontal section of the tumbler lock with twist lock (1) passing through the middle of the key (22) in the unlocked position in the housing formed by a bore in the cover (25). The key (22) is inserted (45) from outside the volume to be protected, for example through the door (13) to be opened thanks to a bore in the latter. In this example of flat key (22) holes (43, 44) are drilled in the thickness of the key (22) completely (43) or partially (44) opposite the pin wells in order to place the pins (41 , 42) in the unlocked position, like conventional tumbler locks.

There illustrates a schematic representation and in perspective from the inside of the volume to be protected of an exemplary embodiment for a locking system according to the invention in the unlocked, half-open position.

The user having inserted the key (22) not visible here in the lock (1), the bolt (7) here formed by the extension of the handle (8) of the latch (51) is released from the lock (1 ). The play between the keeper (15) fixed on the rod (11) and the bolt (16) of the electric lock (20) is sufficient to allow the bolt (7) to be pulled slightly. In another configuration, it is quite possible that the person skilled in the art prefers not to block the espagnolette (51) which depends on the lock (1). This espagnolette (51) can be totally free but the others or certain others closing the door or doors (13) can be blocked under the same conditions by one or more electric locks (20).

The rotor (27) pulled by the bolt (7) and by the spring (38) is held in its open position by the spring (38).

Contact is established between the actuator (29) and the contactor (28) and the switch (6) is closed.

The electric generator (2) then supplies the electromagnet (18) which pulls on the pulling arm (19) thanks to its magnetic part (21). The bolt (16) is removed from the keeper (15).

The rod (11) is released and the handle (8) can be pulled completely by the user unhooking (50) thus the hooks (14, 9) of the latch (51) from their striker (10) and allowing the door opening.

In the case of several espagnolettes (51) and several electric locks (20), the latter are all connected in parallel to the electric circuit (3, 4, 5, 6, 18, 2) and under the control of the same switch (6 ) or more if the person skilled in the art preferred to have several independent circuits (3, 4, 5, 6, 18, 2). The electric locks (20) are opened at the same time and release the espagnolettes (51). The user only has to pull on each handle (8) of each espagnolette (51) as he currently does.

There illustrates a schematic and perspective representation in close view of the twist lock tumbler lock (1) in the open position. This view shows the switch (6) closed when the bolt (7) is removed (46) from the lock (1), the key (22) being in place in its housing. The rotor (27) has driven the pin (31) which by sliding in the slide (30) has brought the actuator (29) into contact with the contactor (34).

There illustrates the same representation with the bottom (23) removed. It shows the spring (38) in tension thus maintaining the lock (27) in the open position. This open rest position allows the future introduction (46) of the bolt (7) whose lug (36) will engage in the notch (37) of the rotor (27).

List of reference numbers

1- mechanical lock

2- battery

3- wire power supply + battery

4- wire power supply - electric lock

5- wire power supply + electric lock

6- switch

7- bolt of the twist lock

8- handle of the espagnolette

9- lower crochet of the espagnolette

10- catch of the espagnolette

11- rod of the espagnolette

12- dormant

13- opening

14- top hook of the espagnolette

15- electric lock striker

16- electric lock bolt

17- electric lock spring

18- electromagnet

19- pull arm

20- electric lock

21- magnetic part

22- key

23- background

24- intermediate block

25- cover

26- rotor axis

27- rotor

28- bottom well plugs

29- actuator

30- slide actuator

31- rotor pin

32- actuator insulator

33- contactor insulator

34- contactor

35- bottom window

36- lug of the bolt

37- rotor notch

38- tumbler lock return spring

39- rotor washer

40- pin spring

41- lower pin

42- top pin

43- drilling of the key

44- partial drilling of the key

45- direction of movement of the key

46- direction of movement of the bolt

47- direction of movement of the rotor

48- tumbler lock return spring pulling direction

49- Electric lock spring pulling direction

50- direction of movement of the hooks

51- espagnolette

52- rod guide

Claims (6)

Closing system consisting of a tumbler lock (1) with twist lock (27) consisting of a cover (23), an intermediate block (24) and a bottom (25), these three parts constituting the case of the tumbler lock (1) in which a rotor (27) rotating around an axis (26) and placed between the intermediate block (24) at the top and the bottom (26) at the bottom forms a bolt which blocks or release a bolt (7), a return spring (38) maintaining the lock in the open position when the rotor (27) is released, the locking systems of this lock being made up of at least one lower pin (41) and at least one upper pin (42) driven by a pin spring (40) placed on a plug (28), each locking system being in a pin well drilled parallel to the axis (26) of the rotor (27) through the intermediate block (24) constituting the fixed part and in the rotor (27) constituting the movable part so that when the key (22) is inserted, the the upper pins (42) rest against it in the open position of the lock (1) and of one or more electric locks (20) arranged inside the volume to be protected and serving to block the door ( 13),
characterized in that the electric lock or locks (20) are powered by an electric generator (2) via an electric circuit (3, 4, 5, 6, 18, 2) on which a switch ( 6) consisting of the tumbler lock (1) with twist lock (27), Closure system according to claim 1,
characterized in that the switch (6) consists on the one hand of an actuator (29) fixed to the bottom (23) of the tumbler lock (1) and in such a way that it can turn around a axis perpendicular to the latter and on which is connected an electric wire (3 or 5) insulated from the mechanical lock (1) by an insulator (32) and on the other hand from a contactor (34) fixed to the bottom (23 ) of the pin lock (1) and insulated from the pin lock (1) by an insulator (33), the contactor (34) being connected to an electric wire (3 or 5), the actuator (29) is moved by a pin (31) fixed to the rotor (27) and engaged in a bore of the actuator (20) forming a slide (30) of the actuator (29) in such a way that the actuator (29) and the contactor (43) do not touch, thus breaking the electric circuit (3, 4, 5) when the rotor (27) is in the closed position, and the actuator (29) and the contactor (34) touch, thus closing the electrical circuit (3, 4, 5, 6, 18, 2) when the rotor (27) is in position opened Closure system according to claim 1,
characterized in that the switch (6) consists of a part of an actuator (29) to which is connected an electric wire (3 or 5) directly fixed to the rotor (27) insulated by an insulator (32) and on the other hand a contactor (34) fixed to the bottom (23) of the pin lock (1) and isolated from the pin lock (1) by an insulator (33), the contactor (34) being connected to an electric wire (3 or 5), the actuator (29) having a shape and a size such that the actuator (29) and the contactor (43) do not touch each other, thus breaking the electric circuit (3, 4, 5, 6, 18, 2) when the rotor (27) is in the closed position, and the actuator (29) and the contactor (34) touch thus closing the electrical circuit (3, 4, 5, 6 , 18, 2) when the rotor (27) is in the open position Closure system according to one of Claims 1 to 3,
characterized in that the electric lock or locks (20) are in the closed position when they are not energized, their bolt (16) being introduced into their strike plate (15) or pressing against it Closure system according to one of Claims 1 to 4, comprising at least one espagnolette closure (51) composed of a rod (11) passing through guides (52) fixed to the interior face of the door (13), this vertical bar (11) being actuated by a handle (8) accessible from the exterior face of the door (13), a lower (9) and or upper (14) hook being fixed perpendicularly to the rod (11), this or these hooks (9, 14) engaging in or around a striker plate (10) fixed to the frame of the door or to a fixed part (12) in the closed position
characterized in that a structure forming a keeper (15) is fixed on the rod (11) of the latch, this keeper (15) being intended to receive or press against the bolt (16) of an electric lock ( 20) fixed on the inside face of the door (12) which prevents the rotation of the rod (11) of the latch (51) in the closed position Closure system according to one of Claims 1 to 5,
characterized in that the bolt (7) of the tumbler lock (1) constitutes one end or is fixed to one end of a handle (8) of an espagnolette type closure system (51)