CN109863278B

CN109863278B - Key device for operating lock

Info

Publication number: CN109863278B
Application number: CN201780064689.6A
Authority: CN
Inventors: 法比奥·博斯基
Original assignee: Individual
Current assignee: Individual
Priority date: 2016-10-20
Filing date: 2017-10-20
Publication date: 2020-10-16
Anticipated expiration: 2037-10-20
Also published as: EP3529435A1; IT201600105693A1; WO2018073641A1; EP3529435B1; CN109863278A

Abstract

A keyed device (100) is connected to a uniform profile lock head (E) in which a cam (C) operates a lock (S), wherein the entire device is adapted for mounting on a security door, armored door, or the like. The cam (C) is controlled by a manoeuvring head (11) equipped with mechanical assembly means (12) whose function is to prevent the rotation of the cam. The handling head (11) is directly inaccessible from the outside, covered by a rotation protection module (25) which is moved from a vertical axis to a horizontal axis by means of a rotor (22). A removable flat key (26) with a combination hole (260) is coupled with the protection module (25) from the outside and then brought inside by rotating the module (25) itself; axial translation of the rotor (22) and of the opening/closing device (27) causes the flat key (26) to release the mechanical combination (12) and to engage itself with the manoeuvring head (11); rotating the rotor (22) causes the whole unit to rotate, setting the cam (C) that opens and closes the lock (S) in motion. The opening/closing device (27) has a housing (29) in which the flat key (26) is held when not in use.

Description

Key device for operating lock

Technical Field

The invention falls into the technical field of high security locks.

Background

The need to prevent the increasingly skilled and evolving technological thieves and the safe thieves does not allow to slow down the research seeking better and better technical solutions to improve the security standards of locks, whose inviolability usually maintains relative values instead of absolute values, which are instead required.

In the field of mechanical locks, even though improved devices have been recently proposed, double-tooth keys are now definitely out of date, whereas the current state of the art is represented by locks with a uniform european profile, better if magnets are supplemented in the key. In order to protect the keyhole externally, the aforementioned locks with european locks are generally equipped with a so-called "guard block" comprising a half-shell protection which comprises, in the front of the keyhole, an idle-running bush with anti-drilling function, while the shape of the body of the protection is studied to prevent the possible entry of a tube or pipe, which acts as a lever to break said protection and/or the lock, into said protection. There are then mechanical locks combined with complementary electromechanical or electronic devices that increase their security, for example to register attempts of burglary and to send a signal, and/or to operate auxiliary mechanisms intended to block the lock in an irreversible manner with a common key.

Besides this, there are keyless mechanical locks, for example characterised by the combination of dials (such as on a safe), and keyless electronic locks characterised by a keypad with alphanumeric combination or with transponder, a card with an embedded chip (for example for hotel rooms), or a lock characterised by fingerprint recognition or in the most complex case iris recognition.

It is clear that the above aspects represent only an indication of the various types of locks on the market, while a more complete scrutiny will be very extensive and not substantially particularly helpful for specifically investigating the technical problems intended to be solved by the present invention.

In essence, a common feature of locks with prevailing mechanical properties is the presence of a key to be inserted in a relative keyway more or less protected but accessible from the outside, wherein the same key (if with the correct combination) acts directly to unlock the mechanism associated with the retaining means (such as a bolt) and to control the rotation in the opening or closing direction.

In fact, the key represents the opening device and the protection system; if someone tries to circumvent the protection system, the lock is violated.

Also, techniques have been adopted to reinforce specific types of lock heads with a european profile, in particular the most economical ones: without considering the points of various picking techniques and/or assembly, only the so-called "strike" is mentioned, which consists in delivering a small and repeated axial blow to a profiled picking key (if necessary), when forced to rotate, so that the piston of the combination hole protrudes and seeks to open the combination.

For home or office applications, it is necessary to ensure the reliability of the lock, which does not require maintenance or regular control, limits the presence of electric components as much as possible, and takes into account the degree of safety one wishes to obtain.

Disclosure of Invention

The object of the present invention is therefore to propose a keyed device for operating a lock, which can be particularly combined with a european-profile lock cylinder (featuring, for example, a european profile), making it possible to overcome the traditional structural concept of known locks (which considers the key as a mechanical connection device receiving the manual action and transmitting the opening (and/or closing) action directly to the mechanism), thereby avoiding the inconveniences and risks related to safety that adversely affect the aforementioned known locks.

Another object of the invention consists in conceiving a lock that is not accessible from the outside and that is also protected against attacks by lifting forces, in particular presenting its cut to the area of the mechanical combination that must prove to be uniform to allow subsequent opening operations, for the particular key of the device concerned.

Another object of the invention relates to the need to prevent any action aimed at reverse probing the correct combination cuts of the key, due to the aforementioned inaccessibility to the zones.

Another object of the invention envisages that the components for passive dongle or exposed to attack using devices such as drills, cutting disks, etc. can be suitably enlarged and made in a variable manner, according to the degree of resistance required, of materials suitably treated to resist cutting and/or drilling operations.

Another additional object of the present invention is aimed at obtaining a key that can be contained and protected in a portable element, wherein said key is intended to be detached from said portable element to be inserted in a retractable manner in a device adapted to be operated by the same portable element that is gripped like the device.

These and other objects are fully achieved by means of a keyed device for operating a lock, particularly integrated with a european profiled lock cylinder, suitable for being mounted on a security door, an armored door or the like, comprising at least one dead bolt operated by the lock cylinder and a european profiled lock cylinder in which a cam can rotate in either direction to open or close, respectively, the at least one dead bolt, since in said keyed device the following are provided:

-a mechanism for operating a cam, the mechanism comprising: an actuating piston located within the european profiled lock cylinder and coaxial with the axis of rotation of the cam, the actuating piston causing the cam to rotate; a steering head connected to and rotating the actuating piston; mechanical combination means for blocking and releasing the rotation of the manoeuvring head and the connected actuating piston;

-an opening/closing assembly accessible from the outside of a security door, an armored door or the like, for operating the handling head and the mechanical combination, wherein the opening/closing assembly comprises: a housing comprising an axially penetrating cylindrical seat housing a rotor coaxial with the manoeuvring head and the actuation piston, wherein the rotor is axially slidable towards the manoeuvring head opposite a spring loaded member which, at rest, maintains the rotor against a shoulder inside the cylindrical seat; a protection module for blocking access from the outside to the handling head, supported by a pin inside the rotor, rotatable about an axis perpendicular to the rotation of the rotor, wherein the protection module is partially accessible from the outside and the corresponding inner part of the protection module is close to the handling head, and wherein the protection module comprises a first profiled surface that can be stably mated with a removable flat key, and a second profiled surface that can be temporarily mated with the locking/unlocking means and is diametrically opposed to the first profiled surface, and wherein the protection module is rotatable between at least two characteristic positions, in one characteristic position, the first profile faces outward and can receive a flat key, and in another characteristic position, the first profile faces the actuating head, while the second moulding surface is facing outwards and is able to receive locking/unlocking means which can be manually operated to achieve: axial translation of the rotor-guard module-flat key assembly such that the key engages with the mechanical combination to release rotation of the manipulation head; the rotor-guard module-flat key-operating head-actuates rotation of the piston assembly in one direction or the other, with the result that the cam rotates in the same direction to open or close the latch.

Drawings

The characteristics of the invention will be apparent from the following description of a preferred embodiment of a keyed device for operating a lock in question, according to the subject-matter recited in the claims and with the aid of the accompanying drawings, in which:

figure 1 shows a side view of the device in relation to a european profiled cylinder for locks;

figure 2 shows a front view of the device of figure 1;

fig. 3 shows, in enlarged scale, a section according to the plane III-III of fig. 1;

figure 4 shows, in enlarged size, a section according to the plane IV-IV of figure 2;

fig. 5 shows an isometric view of the portable opening/closing device for operating the keyed device, also visible in fig. 4;

figure 6 shows an axial section of the device in figure 5;

figure 7 shows a removable element of the device in figure 5;

fig. 8 shows a front view of a flat key that can be transported using the device in fig. 5, that can be inserted into the device and that is also visible in fig. 3 and 4;

fig. 9 shows a cross-sectional view of the flat key according to plane IX-IX of fig. 8;

figure 10 shows an additional cross-sectional view according to the plane X-X of figure 9;

fig. 11 shows an axial side view of the flat key according to fig. 8, 9, 10;

figure 12 shows in a shaft side view the device according to the preceding figures, completed by a european profile cylinder combination lock.

Detailed Description

In the preceding figures, the keyed device for operating the lock in question is designated in its entirety with the reference number 100.

The device (100) with key is suitable for being associated with a lock (S), in combination with a lock (E) with a European profile, in particular a lock (cylinder) with a so-called "European" profile.

These locks (S) with associated locking heads (E) are suitable for being mounted on security doors in homes and offices, armoured doors of safes or security cabinets or the like (not shown) and comprise at least one dead bolt (P) and a lock operated by a cam (C) of the locking head (E) (see in particular fig. 12).

The cam (C) rotates in either direction to open or close, respectively, the deadbolt (P) via the mechanism of the aforementioned lock (S).

According to the invention, the device (100) comprises a mechanism (1) for operating said cam (C), wherein the following are provided:

-an actuating piston (10) (plug) inside the european profiled lock (E) and coaxial with the axis of rotation of the cam (C) to cause the cam to rotate;

-a handling head (11) associated with the actuation piston (10) and intended to rotate it;

-mechanical assembly means (12) for blocking and releasing the rotation of the aforesaid manoeuvring head (11) and of the connected actuating piston (10).

The actuating piston (10) can slide axially in opposition to the action of the spring-loaded member (13), while the manoeuvring head (11) is inserted rotationally inside a cylindrical compartment (14) located in a flange (15), wherein the flange (15) is integral with said european-profile locking head (E).

The mechanical assembly means (12) are advantageously composed of a plurality of assembly pins (120) (only two of which are visible in fig. 3) housed inside the handling head (11) and arranged in a ring according to a predetermined geometry, for example a circumference, with respective axes parallel to the axis of the handling head (11).

The assembling pin (120) protrudes from the rear of the handling head (11) beyond the end of the cylindrical compartment (14) and is partially inserted in a corresponding hole (16) located in the flange (15); each combination pin (120) comprises two consecutive parts, a first part (121) and a second part (122).

The total length of presentation of each combined pin (120) may be the same or different relative to the length of the other pins (120), just as the length of the first portion (121) may be the same or different relative to the second portion (122) or relative to the length of the other pins (120).

In an alternative embodiment of the mechanical combination device (12), at least one of the aforesaid combination pins (120) comprises a third portion (123), for example a spheroid (fig. 3), arranged between said first (121) and second (122) parts.

The insertion or removal of the third part (123) enables convenient modification of the combination incision of the mechanical combination means at a later stage.

Each combined pin (120) of the two-part (121) (122) (or three-part) type is subjected to the action of a spring-loaded member (124) inserted in the respective hole (16), which drives it axially protruding from the front side of the manoeuvring head (11) up to a pre-established position defined by a stop (17) provided in the manoeuvring head.

The device (100) also comprises an opening/closing assembly (2) accessible from the outside of the aforementioned security door, armored door or the like, intended to operate the aforementioned handling head (11) and mechanical assembly means (12).

The opening/closing assembly (2) comprises a casing (20) having an axially penetrating cylindrical seat (21) housing a rotor (22) coaxial with the manoeuvring head (11) and with the actuating piston (10).

An outer shell (20) of high-steel-resistance, sturdy and durable construction is integrated with the european profiled lock cylinder (E) and projects at least partially outwardly from an associated security door, armored door, or the like.

The casing (20) is annular and externally formed with a cross-section decreasing outwards from said security door, armoured door or the like, for example tapered as shown in the figures.

The structure is advantageous because it makes it impossible to install a pipe or tube for destroying or eliminating the opening/closing assembly (2) by means of force in the casing (20).

The rotor (22) is axially slidable towards the manoeuvring head (11) opposite a spring-loaded member (23) which, at rest, maintains the rotor against a shoulder (24) inside the aforesaid seat (21).

The shoulder (24) has a diameter smaller than that of the axial cylindrical seat (21) and is positioned in the vicinity of the outermost end of the cylindrical seat.

Inside the rotor (22), a protection module (25) for preventing access from the outside to the handling head (11) is rotatably supported by a pin (25P) whose axis is perpendicular to the rotation of the rotor (22).

The protection module (25) is conveniently made of high-resistance steel (for example molybdenum vanadium alloy), able to ensure the same improved pick-lock and drilling resistance.

The protection module (25) is partially accessible from the outside, with its respective inner portion close to said handling head (11), and presents, in a relative lateral surface region, a first profiled surface (251) able to be stably paired with a removable flat key (26), and a second profiled surface (252) able to be temporarily paired with the opening/closing device (27) and diametrically opposite to the first profiled surface (251).

In a preferred constructive solution according to the accompanying drawings, the aforementioned protection module (25) has a substantially spherical shape, wherein at least the first forming surface (251) is flat and parallel to the rotation axis of the protection module (25) itself.

In order to obtain a housing that is also spherical, inside the rotor (22), it is provided that the rotor (22) is made up of two parts (22A, 22B) connected to each other by said rotation pin (25P) of the protection module (25) (fig. 3 and 4).

The protective module (25) is arranged to rotate between at least two characteristic positions, in one of which the first profile surfaces (251) are directed outwards and can receive a flat key (26).

In a second characteristic position of the protective module (25), the first moulding surface (251) faces the handling head (11), while the second moulding surface (252) faces outwards and can receive the opening/closing device (27).

A male tenon profile (261) is provided in the first molding surface (251), which can engage with a complementary female tenon profile (262) on the rear of the flat key (26) to obtain a stable removable coupling between the flat key (26) and the protection module (25).

At least two blind holes (272) are provided in the second molding surface (252), said blind holes being parallel to each other and symmetrically off-centered with respect to the rotational axis of the rotor (22).

The two aforementioned blind holes (272) are intended to receive respective plungers (270) projecting from the opening/closing device (27) to effect a temporary coupling between the opening/closing device and the protection module (25) (see in particular fig. 4).

The flat key (26), as shown in fig. 8 to 11 and suitable for the spherical shaped security module (25), has an outer surface shaped like a spherical cap with a radius equal to that of the security module (25) to restore continuity of the spherical shape when the security module (25) and the flat key (26) are connected together.

The same spherical outer surface of the flat key (26) includes a plurality of combination holes (260) having different lengths, the combination holes being arranged in a ring shape according to a predetermined geometry (e.g., circumference), and axes of the combination holes being parallel to each other.

The combination holes (260) are set so as to be directed towards the handling head (11) according to said second characteristic position of the protection module (25) and parallel to the axis of the handling head, and are adapted to engage with respective combination pins (120) projecting from the handling head (11) to push them along a predetermined path along which they are set to release the handling head, as described more fully below.

The lateral surface of the protection module (25) is provided with a number of notches (25T) that can be grasped by a fingernail or flat blade tool to assist the rotation of the protection module (25) between its two characteristic positions (fig. 1, 2, 12).

In order to define and stabilize the protection module (25) more completely, respective centering means (30) have been provided, represented in this example by a first annular cavity (31) formed at the centre of the flat key (26), and a second annular cavity (32) formed at the centre of the second forming surface (252) and identical to the first annular cavity.

Each cavity (31, 32) is arranged to alternately elastically engage with a reference portion located in the manoeuvring head (11), such as a head end of the actuating piston (10) slightly protruding from the actuating piston (10), with respect to the position assumed by the protection module (25).

In a first alternative embodiment, not shown, the aforesaid protection module (25) has a substantially cylindrical shape, the axis of which coincides with the rotation axis of the protection module (25) itself; also, at least the first molding surface (251) is flat and parallel to the rotation axis.

In a second alternative embodiment, also not shown, the protection module (25) has a substantially prismatic shape, the longitudinal axis of which coincides with the rotation axis of the protection module (25) itself; and wherein the first and second molding surfaces (251, 252) conform to respective sides of the prisms.

Figures 4, 5, 6, 7 show the preferred form in which the opening/closing means (27) are in a form suitable for forming the protection module (25).

Conveniently, the opening/closing device (27) can house therein a flat key (26) for carrying the flat key (26) positioned so that the rear portion presents an outwardly concave tenon profile (262).

Thus, the opening/closing device (27) has a main body (28) shaped to provide an ergonomic grip for the fingers of one hand, provided with: a compartment (29) for holding, maintaining and transporting the flat key (26); a cover (29C) for at least partially closing the compartment (29); a coupling means (271) comprising a cavity shaped to match the second shaped surface (252) of the protection module (25), and at least two parallel plungers (270).

In the example shown, the cover (29C) (fig. 7) is extractable, but a form is conceivable in which the cover is connected to the main body (28) via a hinge.

In the case in question, the cavity of the coupling means (271) takes a concave form, with a spherical radius equal to that of the protection module (25), and contains the aforesaid plunger (270), suitably positioned and projecting outwards, which as already described above can be inserted inside the aforesaid blind hole (272) in the second moulding surface (252) to achieve a temporary coupling between said opening/closing device (27) and the protection module (25).

The sequence of operations required to open the lock (S) by means of the keyed device (100) will now be described, as well as the functions of the keyed device (100) that are already partly known, according to the previous structure.

The user observes the protection module (25) to check which of the relevant forming surfaces (251, 252) is facing outwards.

If the first molding surface (251) is not yet outward, the user takes action to rotate the protection module (25) appropriately, possibly by means of the notch (25T) to rotate the protection module (25).

The user then withdraws the opening/closing device (27), for example from his pocket or bag, and removes the cover (29C), exposing the rear of the flat key (26).

By using the opening/closing device (27), the user takes action to engage the concave tenon profile (262) of the flat key (26) in the complementary convex tenon profile (261) provided in the first molding surface (251).

Disengaging the opening/closing device (27) maintains the flat key (26) stably engaged in the protection module (25), and then rotating the protection module, possibly again by means of the notch (25T), to its aforesaid second position in which the same flat key (26) is drawn inside, in front of the operating head (11).

The actuating piston (10) engages in a cavity (31) located at the centre of the flat key (26) by means of a slight click which indicates that the correct position is obtained.

By gripping the opening/closing device (27), the plunger (270) is engaged in the blind hole (272) of the second moulding surface (252) until the concave cavity is associated with the spherical shielding module (25).

At this point, acting on the opening/closing means (27) with a suitable manual action, the following steps are carried out in sequence:

-axially translating the rotor (22) -guard module (25) -flat key (26) assembly, obtaining the action of the spring-loaded member (23) and the corresponding sliding of the actuation piston (10) in opposition to the action of the corresponding spring-loaded member (13); thereby causing the combination holes (260) of the flat key (26) to couple with the respective combination pins (120) protruding from the handling head (11) and to push the combination pins along a predetermined path arranged to release the rotation of the handling head (11); release is achieved when the diametral plane in which the contiguous first and second portions (121, 122) of each combined pin (120) are in contact is flush with the end of the compartment (14), so that all the second portions (122) of the pins (120) are fully inserted in the relative holes (16) and appear flush with the end of said compartment (14); in this case, the manoeuvring head (11) is allowed to rotate, which causes all the first parts (121) to be angularly separated from the respective second portions (122) of the assembly pin (120) maintained within the holes (16) in the flange (15);

-rotating the rotor (22) -protection module (25) -flat key (26) -manoeuvring head (11) and actuating piston (10) assembly in the appropriate direction, with the result that the cam (C) is rotated in the same direction to open the lock (S);

-releasing the pressure on the device (27) and disengaging the device (27) from the protection module (25);

-opening doors or hatches etc.;

-rotating the protection module (25) and extracting the flat key (26).

Obviously, the closing of the lock (S) is performed by a similar procedure, which will not be described.

From the above, all the innovative aspects of the proposed keyed device are known, which radically change the constructive concept adopted so far.

The most important of these aspects relates to the function of removing from the key the mechanical linkage that directly receives the manual action and transmits the opening and closing action of the lock to the mechanism, in order to delegate this action to the opening/closing device, which also acts as a container and protection mechanism for the key when it is not in use.

Another advantage derives from the fact that the area in which the flat key of the device presents its cuts to the mechanical combination is inaccessible from the outside and is protected from the attack of increased forces.

The structural related aspect just mentioned also prevents any action aimed at reverse probing the correct combination cuts of the key, considerably improving safety.

The structural-related concerns dedicated to the "passive" protection of the lock are of particular importance, being arranged so that the parts subject to attack have large dimensions and are made of high rigidity, and making the picking of the lock, using devices such as drills, cutting disks, etc., intended to fail, or at least making the picking of the lock very difficult.

The structure of the keyed device enables it to be combined with additional accessory devices (mechanical accessory devices and electromechanical accessory devices) with the aim of further increasing its safety.

It is therefore understood that the aspects described are given by way of example only and are not limitative, and that, in the light of this, any changes in detail that may have to be made for technical and/or functional reasons are considered to fall within the same scope of protection as defined by the following claims.

Claims

1. A keyed device for operating a lock (S), said keyed device comprising a european profile lock cylinder (E) adapted to be mounted on a security door, an armored door, and comprising at least one lock cylinder operated deadbolt (P), wherein the lock cylinder (E) comprises a cam (C) which is rotatable in either direction to open or close the at least one deadbolt (P), respectively, and wherein said keyed device (100) is characterized in that it has:

-a mechanism (1) for operating a cam (C), said mechanism comprising: an actuating piston (10) located within the european profiled lock cylinder (E) and coaxial with the axis of rotation of the cam (C), the actuating piston causing the cam to rotate; a steering head (11) connected to the actuating piston (10) and causing the latter to rotate; -mechanical assembly means (12) for blocking and releasing the rotation of the manoeuvring head (11) and the connected actuating piston (10);

-an opening/closing assembly (2) accessible from the outside of a security door, an armored door, for operating the maneuvering head (11) and the mechanical combination means (12), wherein the opening/closing assembly (2) comprises: a casing (20) comprising an axially pierced cylindrical seat (21) housing a rotor (22) coaxial with the manoeuvring head (11) and the actuation piston (10), wherein the rotor (22) is axially slidable towards the manoeuvring head (11) opposite a spring-loaded member (23) which, at rest, maintains the rotor against a shoulder (24) inside the cylindrical seat (21); a protection module (25) for preventing access from the outside to the handling head (11), supported by a pin (25P) inside the rotor (22), rotatable about an axis perpendicular to the rotation of the rotor (22), wherein the protection module (25) is accessible from the outside partially and the respective inner portion of the protection module is close to the handling head (11), and wherein the protection module (25) comprises a first profiled surface (251) stably mateable with a removable flat key (26), and a second profiled surface (252) temporarily mateable with a locking/unlocking tool (27) and diametrically opposite to the first profiled surface, and wherein the protection module (25) is rotatable between at least two characteristic positions, in one of which the first profiled surface (251) is outward and is able to receive the flat key (26), and in the other characteristic position the first profiled surface (251) is directed towards the handling head (11), while the second moulding surface (252) is facing outwards and is able to receive a locking/unlocking tool (27) which can be manually operated to achieve: axial translation of the rotor (22) -guard module (25) -flat key (26) assembly, so that the key engages with the mechanical combination means (12) to release the rotation of the manoeuvring head (11); rotor (22) -guard module (25) -flat key (26) -manoeuvring head (11) -actuating piston (10) assembly rotation in one direction or the other, with the result that cam (C) rotates in the same direction to open or close latch (S).

2. Keyed device for operating a lock (S) according to claim 1, characterized in that the actuation piston (10) is axially slidable in the operating mechanism (1) opposite to the spring-loaded part (13) according to the aforementioned axial translation of the rotor (22) -protection module (25) -flat key (26) assembly, with the operating head (11) inserted and rotatable inside a cylindrical compartment (14) located in a flange (15) integrated into the european profiled lock cylinder (E), and with the mechanical combination means (12) comprising a plurality of combination pins (120) housed inside the operating head (11), arranged in a ring according to a predetermined geometry, with their axes parallel to the axis of the operating head (11) and projecting from the rear of the operating head beyond the end of the cylindrical compartment (14), And is partially inserted into a respective hole (16) located in the flange (15), wherein each composite pin (120) comprises two consecutive portions, a first portion (121) and a second portion (122), such that the total length of the composite pin can be the same or different from the total length of the other composite pins (120), and wherein the composite pin (120) comprising the first portion (121) and the second portion (122) is subjected to the action of a spring-loaded member (124) and is pushed axially, in opposition to the spring-loaded member, through a predetermined travel distance determined by the cut of the flat key (26) to a position in which the diametral plane in which the adjoining first (121) and second (122) portions of the composite pin are in contact is flush with the end of the cylindrical compartment (14), thereby allowing the manoeuvring head (11) to rotate together with the actuating piston (10), such that all first portions (121) of the combination pins (120) are angularly separated from the corresponding second portions (122) inside the holes (16) maintained in the flange (15).

3. A keyed device for operating a lock (S) according to claim 1, characterised in that in the opening/closing assembly (2) the casing (20) is integrated with a european-profile lock cylinder (E) and protrudes at least partially outwards from a security door, an armoured door, wherein the annular exterior of the casing (20) has a cross section decreasing outwards from said security door, armoured door, wherein the shoulder (24) has a smaller diameter than the diameter of the axial cylindrical seat (21) and is positioned near the outermost end of the cylindrical seat.

4. Keyed device for operating a lock (S), according to claim 1, characterised in that the protection module (25) has a substantially spherical shape, wherein at least the first shaped surface (251) is flat and parallel to the rotation axis of the protection module (25) itself.

5. A keyed device for operating a lock (S) according to claim 4, characterised in that the flat key (26) has an outer surface shaped as a spherical cap, the radius of which is equal to the radius of the security module (25) to form a complete spherical shape when the flat key and the security module are connected together, wherein the same outer surface of the flat key (26) includes a plurality of combination holes (260) having different lengths, the combination holes are arranged in a ring according to a predetermined geometry, the axes of the combination holes are parallel to each other, and according to a second characteristic position of the protection module (25), the combination hole is directed towards the handling head (11) and parallel to the axis of the handling head, so that the combining holes (260) are engaged with the respective combining pins (120) protruding from the manipulating head (11) to push the combining pins along the predetermined paths of the combining pins to release the manipulating head.

6. A keyed device for operating a lock (S) according to claim 1 or 4, characterised in that the rotor (22) comprises two portions (22A, 22B) connected to each other by a rotation pin (25P) of the protection module (25).

7. A keyed device for operating a lock (S) according to claim 1, characterised in that the protection module (25) has a substantially cylindrical shape, the axis of which coincides with the rotation axis of the protection module (25) itself, and in that at least the first profiled surface (251) is flat and parallel to the rotation axis of the protection module.

8. A keyed device for operating a lock (S) according to claim 1, characterised in that the protection module (25) has a substantially right-angled prismatic shape, the longitudinal axis of which coincides with the rotation axis of the protection module (25) itself, and in that the first and second shaped surfaces (251, 252) coincide with the respective sides of the right-angled prism.

9. A keyed device for operating a lock (S) according to any of the previous claims 1-5, 7-8, characterised in that the side surface of the guard module (25) comprises a number of notches (25T) that can be grasped by a fingernail or flat blade tool to cause the guard module (25) to rotate between its two characteristic positions.

10. Keyed device for operating a lock (S) according to any of the previous claims 1-5, 7-8, characterized in that the first molding surface (251) of the protection module (25) has a male tenon profile (261) engageable with a complementary female tenon profile (262) on the rear of the flat key (26) to obtain a stable removable coupling between the flat key and the protection module (25).

11. Keyed device for operating a lock (S) according to any of the previous claims 1-5, 7-8, characterized in that the second shaped surface (252) of the protection module (25) has at least two blind holes (272) parallel to each other and symmetrically off-centered with respect to the rotation axis of the rotor (22), wherein said at least two blind holes (272) are able to receive respective plungers (270) protruding from the locking/unlocking tool (27) to enable temporary coupling between the locking/unlocking tool and the protection module (25).

12. Keyed device for operating a lock (S) according to any of the previous claims 1-5, 7-8, characterised in that the flat key (26) and the second profiled surface (252) each have centring means (30) identical to each other, able to elastically engage alternately with a reference portion located in the manoeuvring head (11) to define and stabilise the two characteristic positions of the protection module (25).

13. Keyed device for operating a lock (S) according to any of the previous claims 1-5, 7-8, characterized in that the body (28) of the locking/unlocking means (27) has a compartment (29) for holding, maintaining and transporting the flat key (26) and a cover (29C) for at least partially closing said compartment (29).

14. Flat key for a keyed device (100) for operating a lock (S) according to any one of claims 1 to 10, characterised in that it comprises: a plurality of combination holes (260) of different lengths, arranged according to a predetermined geometry in a ring, the axes of which are parallel to each other, and which, according to a second characteristic position of the protection module (25), can be directed towards the handling head (11) and parallel to the axis of the handling head, wherein the combination holes (260) can be coupled with respective combination pins (120) projecting from the handling head (11) to push them along a predetermined distance for releasing the handling head; a female tenon profile (262) along the rear of the flat key (26) capable of coupling with a complementary male tenon profile (261) in the guard module (25) to establish a stable and removable coupling between the flat key and the guard module.

15. A locking/unlocking tool for a keyed device (100) for operating a lock (S) according to any one of claims 1 to 10, characterized in that it has a body (28) shaped to provide ergonomic grip for the fingers of one hand and comprising: a compartment (29) for holding, maintaining and transporting a flat key (26); coupling means (271) comprising a cavity shaped to match the second molding surface (252) of the protection module (25), and at least two parallel plungers (270) projecting outwards and insertable within respective blind holes (272) in the second molding surface (252) for obtaining a temporary coupling between the locking/unlocking tool (27) and the protection module (25).