TW202140904A - Cylinder lock and key thereof - Google Patents

Abstract

A cylinder lock (1) and a key (2) thereof, the lock (1) comprising a stator (3) within which a rotor (4) can rotate which is provided with a longitudinal channel (5) inside which respective pins (6, 7) are arranged substantially mutually opposite. The channel (5) is adapted for the insertion of a key (2) provided with a seat (8) for the accommodation of a respective lever (9) which can be oriented freely and is adapted to actuate the pins (6, 7). At least one of the pins (6) is constituted by a concave ogive (10) and a contoured grub (11) which has an end (12) whose shape and dimensions are complementary to those of the internal cavity (13) of the ogive (10). Axially acting elastic means (14) are interposed between the ogive (10) and the grub (11) for their respective mutual spacing in conditions of absence of external forces applied to the grub (11) toward the ogive (10). The stator (3) comprises a recess (15) whose shape and dimensions are complementary to those of the terminal front of the ogive (10) for the temporary accommodation of the front; the recess (15) is aligned with the hole (16) of the rotor (4) within which the ogive (10) and the grub (11) are arranged. At least one elastic element (17) is interposed between the stator (3) and the at least one additional pin (7) for the forcing thereof within the longitudinal channel (5). Following the insertion of the key (2) in the longitudinal channel (5), the end of the pin (7) and a head (18) of the grub (11) abut against the lever (9), with consequent partial inclination thereof with respect to the key (2) in the configuration for free translation of the pin (6) within the hole (16) of the rotor (4), without protrusion of the front of the ogive (10) with respect to the contour of the rotor (4) during the rotation thereof.

Description

Cylindrical lock and its key

The invention relates to a cylinder lock and its key.

There is currently a cylinder lock that can be operated by a respective key. Its characteristics are described in IT1235586 dated September 6, 1989 and EP1728944 dated June 1, 2005, both of which are disclosed in the name of the same applicant . These documents describe a cylinder lock whose code cannot be deciphered from the outside immediately in order to prevent it from being tampered with.

This result is achieved by arranging at least two pins so that they are opposite to each other. In a cylindrical rotor, the pins have a respective end protruding into the channel.

The pins are associated with respective complementary pins, and the complementary pins can be elastically converted from one configuration in the stator to at least one configuration in the stator and the rotor at the same time, and then the integral coupling of these two parts is realized.

The key has a lever that accommodates the lever so that it can rotate in a corresponding base. When the key is inserted into the channel, the lever drives the pin, and configures it so that the complementary pin is always accommodated in a configuration in the stator to allow the rotor to be in the key. Selectively move after rotating.

The presence of the lever in the key is associated with at least two pins to ensure high security of the lock to prevent intrusive actions generally termed prying (mechanical tampering).

In order to prevent an individual with poor intentions from using an appropriate intrusion tool suitable for faithfully reproducing the orientable lever at the pin, using a traditional type of mechanical tampering tool and method, to open the cylinder lock and introduce the opposite pin to the lock Possibility to encode adjacent lever parts (depending on the content of EP1728944).

However, there is a need to improve security against intrusion, because the locks described so far still have a risk of tampering under any circumstances (although the risk is extremely low).

The purpose of the present invention is to solve the problems described above, and propose a cylinder lock and its key, the cylinder lock and its key have a higher anti-intrusion safety standard than the known technical solutions ensure.

Within the scope of this objective, one object of the present invention is to provide a cylinder lock and key compatible with known types of locks and keys.

Another object of the present invention is to provide a cylinder lock composed of a limited number of components, which can be assembled in a component configuration in a substantially simple manner.

A further object of the present invention is to provide a cylinder lock and its key that are low in cost, relatively simple to provide in practical applications, and safe in application.

This purpose and these and other subject matter will become obvious in the following. It is achieved by a cylinder lock and its key. The cylinder lock includes a stator, a rotor can rotate in the stator, and a longitudinal direction is provided in the rotor. A channel in which the respective pins are arranged substantially opposite to each other, and the channel is suitable for embedding a key provided with a base for accommodating the respective lever, the lever being freely oriented and suitable for driving the pins, which Characterized by

At least one of the pins is constituted by a concave pointed arch and a contoured flat head, the contoured flat head has an end portion whose shape and size are complementary to the inner cavity of the pointed arch;

An axially acting elastic member is inserted between the pointed arch and the flat head to separate them from each other without external force being applied to the flat head toward the pointed arch;

The stator includes a groove whose shape and size are complementary to those of the terminal front end of the pointed arch for temporarily accommodating the front end, the groove is aligned with the hole of the rotor, the pointed arch and the flat head Arranged in the hole of the rotor;

Insert at least one elastic element between the stator and the at least one additional pin to force it to be in the longitudinal channel 5;

After the key is inserted into the longitudinal channel, the end of the pin and the head of the flat head abut the lever so that it is inclined relative to the part of the key for the freedom of the pin in the hole of the rotor Translation without the need for the front end of the pointed arch to protrude in the groove of the stator.

With particular reference to the above drawings, reference number 1 generally designates a cylinder lock, and reference number 2 designates its key.

The cylinder lock 1 includes a stator 3, a rotor 4 can rotate in the stator 3, and the rotor 4 is provided with a longitudinal channel 5 in which the respective pins 6 and 7 are substantially opposite to each other.

Both the pins 6, 7 can slide laterally relative to the channel 5 between their respective configurations with different interferences of the channel 5 (even until it is eliminated).

The channel 5 is adapted to receive a key 2 (embedded from the outside), and the key 2 is provided with a base 8 for receiving a cord-cutting free-orientation lever 9.

The lever 9 is designed to align the pins 6, 7 correctly, because it is driven by the lever 9 (when the key 2 is correctly inserted into the channel 5, the lever 9 is adjacent to the lever 9), and it is used to specify Code configuration configuration.

With particular reference to the more innovative aspect of the present invention, it is stipulated that at least one of the pins 6 is composed of a concave pointed arch 10 and a contoured flat head 11, the contoured flat head has an end 12, the shape and size of the end 12 It is complementary to the shape and size of the inner cavity 13 of the pointed arch 10.

During the use of the lock 1, the behavior of the pin 6 is ensured by inserting an axially acting elastic member 14 between the pointed arch 10 and the flat head 11. The elastic member 14 is used for the flat head 11 facing the pointed arch 10 when no external force is applied. In the case, the pointed arch 10 and the flat head 11 are separated from each other.

The stator 3 includes a groove 15 whose shape and size are complementary to those of the terminal front end of the pointed arch 10 for temporarily accommodating the front end. The groove 15 is aligned with the hole 16 of the rotor 4, and the pointed arch 10 and the flat head 11 are arranged in the hole 16.

According to the present invention, at least one elastic element 17 is inserted in the lock 1 between the stator 3 and the at least one additional pin 7 so that it faces the longitudinal channel 5 (so that its end protrudes without external force).

In the lock 1 according to the present invention, after the key 2 is inserted into the longitudinal channel 5, the end of the pin 7 and the head 18 of the flat head 11 are abutted with the lever 9, so that it is inclined relative to the part of the key 2. In the free translational configuration of the pins 6 in the respective holes 16 of the rotor 4, during the rotation of the rotor 4, the front end of the pointed arch 10 does not protrude relative to the contour of the rotor 4.

With particular reference to embodiments that are undoubtedly interesting in practical applications, it is stipulated that the hole 16 of the rotor 4 (in which the pin 6 is accommodated) can conveniently include continuous parts of different diameters.

At least one first portion 19 has a width greater than that of the pointed arch 10 (so that a gap is defined between the pointed arch 10 and the defining wall of the portion 19), and at least one second portion 20 has a shape and size substantially equal to that of the pointed arch The shape and size of 10 are complementary (so that it can accommodate the pointed arch 10 in a substantially insignificant gap), and at least one third portion 21 has a shape and size that are substantially complementary to the shape and size of the head 18 of the flat head 11 so as to be complementary to it. Form a pair of cylindrical shapes.

In addition, the prescribed head 11 includes: a substantially cylindrical head 22 (which ends with the actual head 18); at least one intermediate shoulder 23 whose diameter is substantially similar to the outer diameter of the pointed arch 10; and at least one terminal portion , Its shape and size are complementary to the shape and size of the inner cavity of the pointed arch 10.

The terminal portion then includes: a central cylindrical portion 24 having a larger diameter; and a terminal cylindrical portion 25 having a smaller diameter.

The cavity in the pointed arch 10 conveniently includes: a first opening 26 facing the flat head 11 in the assembly configuration and having a diameter complementary to the diameter of the central cylindrical portion 24; and a second opening 27 therein The diameter is complementary to the diameter of the terminal cylindrical portion 25.

In order to clarify the structure accurately, it should be noted that the elastic member 14 is inserted between the front end (which forms an annular shoulder) of the central cylindrical part 24 with a larger diameter, which is opposite to the terminal cylindrical part 25. And the flat ring-shaped part of the cavity protrudes radially, and the flat ring-shaped part of the cavity is formed between the first opening 26 and the second opening 27 facing the flat head 11.

The correct and normal operation of the lock 1 according to the present invention is further ensured by the fact that the groove 15 of the stator 3 is defined between two intersecting inclined surfaces 28 and 29, which are mixed with each other at the bottom of the groove 15, And it is mixed with the surface of the passage 30 of the stator 3 used for the rotational accommodation of the rotor 4. From a structural point of view, the groove 15 can be provided by milling (or generally by chip forming) the inner surface of the channel 30 of the stator 3: milling can be limited to the hole with the rotor 4 in the component configuration 16 The area of alignment, or more likely, extends from the terminal surface of the stator 3 to this area.

It is stipulated that in a specific embodiment that allows for the best anti-intrusion safety, the lever 9 can advantageously have a variable, locally flat and discontinuous thickness according to a substantially coded shape, depending on its substantial The geometry and arrangement of the ends of the aligned and adjacent pins 6 and 7.

The special shape of the lever 9 conveniently defines a special static configuration of the ends of the pins 6 and 7 on its surface: in practical applications, the ends of the pins 6 and 7 can be appropriately shaped to engage the upper part of the lever 9. Corresponding complementary forming areas are provided so that the integral configuration of the lock 1 and its key 2 in the opening configuration is allowed only when the respective forming areas are correctly abutted in the corresponding complementary forming areas.

In addition, it is stipulated that the pin 7 can slide in a contour channel 31 of the rotor 3. The channel 31 includes a part 32 which is radially outermost relative to the rotor 4 and has a larger diameter suitable for slidably receiving a base of the pin 7. Seat plate 33; and an inner part 34, which has a smaller diameter and is suitable for slidingly receiving an elongated rod 35 of the pin 7.

At least one elastic element 17 is effectively inserted between the bottom of the channel 31 and the base plate 33.

With particular reference to the specific embodiments (one of which is only shown by non-limiting examples in FIGS. 11 to 18), the stator 3 may conveniently include a cylindrical groove 36 aligned with the channel 31.

The groove 36 can be used exclusively for the assembly of the components (the pin 7, the elastic element 17 and the base plate 33 ), and is closed by a plug 37.

In some particularly anti-intrusion embodiments, the groove 36 is used to accommodate a complementary pin 38 that is adjacent to the base plate 33 for the elastic element 17.

An axially acting spring 39 can be conveniently arranged between the complementary pin 38 and the bottom of the cylindrical groove 36 to force the complementary pin 38 toward the longitudinal channel 5 of the rotor 4.

Finally, it is stipulated that the lever 9 can have a substantially flat shape and can pivot at a peripheral edge thereof in a base 8 which is complementary to the contour of the lever 9.

The opposite edge of the lever 9 is an edge that swings freely between the extreme configurations protruding from the outline of the key 2.

The operation of the present invention is as follows. When the key 2 is correctly and completely inserted into the longitudinal channel 5 of the lock 1, the pin 6 and the pin 7 can adopt the correct configuration to decouple the rotor 3 from the stator 4 and allow unlocking (as shown in Figures 3, 4, 13 and 14) ).

When the key 2 is inserted into the channel 5, the same situation of decoupling the rotor 4 from the stator 3 also occurs in the embodiment including the complementary pin 38 (as shown in FIGS. 17 and 18).

Conversely, if a key X that does not conform to the present invention is embedded in the channel 5, an attempt to rotate the rotor 4 relative to the stator 3 will lock the flat head 11 in the pointed arch 10 (shown as an example according to Figure 8), thereby preventing rotation It's done.

Similarly, if an attempt is made to start the rotation of the rotor 4 (acting from the outside by a prying tool), the flat head 11 is stuck in the pointed arch 10 (shown as an example according to FIG. 10), thereby preventing the completion of the rotation.

Advantageously, the present invention solves the problems described above and provides a cylinder lock 1 and its key 2 which have a higher anti-intrusion safety standard than the known technical solutions ensure.

Conveniently, the cylinder lock 1 and its key 2 are compatible with known types of locks and its keys belonging to the same product category.

Positively, the cylinder lock 1 is composed of a limited number of components, which can be assembled in a component configuration in a substantially simple manner.

Effectively, the cylinder lock 1 and its key 2 are relatively simple to provide in practical applications and substantially low in cost: these characteristics make the lock 1 and key 2 according to the present invention extremely effective.

The invention thus conceived is susceptible to many modifications and variations, and these modifications and variations are within the scope of the attached invention patent application; all details can be further replaced with other technically equivalent elements.

In the illustrated embodiment, a single characteristic given with respect to a specific example may actually be interchanged with other different characteristics existing in other examples of the embodiment.

In practical applications, the data and dimensions used can be any data and dimensions that meet the requirements and the latest technology.

1: Cylinder lock 2: key 3: stator 4: Rotor 5: Longitudinal channel 6: pin 7: pin 8: Base 9: Leverage 10: pointed arch 11: Flat head 12: end 13: Inner cavity 14: Elastic member 15: Groove 16: Hole 17: Elastic element 18: head 19: Part One 20: Part Two 21: Part Three 22: Cylindrical head 23: middle shoulder 24: Central cylindrical part 25: Cylindrical part of the terminal 26: first opening 27: second opening 28: Incline 29: Incline 30: Channel 31: Channel 32: Part 33: Base plate 34: internal part 35: Long rod 36: Cylindrical groove 37: Embolism 38: complementary pin 39: spring A: plane C: plane D: plane E: plane F: plane X: key

From the description of a preferred but non-exclusive embodiment of the cylinder lock and its key according to the present invention, further features and advantages of the present invention will become apparent, as a non-limiting example in the accompanying drawings, in which:

Figure 1 is a schematic longitudinal sectional side view of one of the cylindrical locks according to the present invention;

Figure 2 is a partial cross-sectional side view of a key according to the present invention;

3 is a cross-sectional view of the cylindrical lock and its key of FIGS. 1 and 2 taken along the plane A-A shown in FIG. 1 in a first unlocking step;

4 is a cross-sectional view of the cylindrical lock and its key of FIGS. 1 and 2 taken along the plane A-A shown in FIG. 1 in a second unlocking step;

Figure 5 is a schematic longitudinal sectional side view of a cylindrical lock with a different key embedded in it according to the present invention;

Figure 6 is a cross-sectional view of the cylindrical lock and different keys of Figure 5 taken along the plane B-B shown in Figure 5;

Fig. 7 is a cross-sectional view of the cylindrical lock and different keys in a rotary lock configuration of Fig. 5 taken along the plane B-B shown in Fig. 5;

Figure 8 is an enlarged scale view of one of the details of Figure 7;

Figure 9 is a cross-sectional view of the keyless cylindrical lock taken along the plane A-A shown in Figure 1;

Figure 10 is a cross-sectional view of a keyless cylindrical lock in a rotary lock configuration taken along the plane A-A shown in Figure 1;

Figure 11 is a schematic longitudinal sectional side view of a modification of the cylinder lock according to the present invention;

Figure 12 is a cross-sectional view of the keyless cylindrical lock taken along the plane C-C shown in Figure 11;

Figure 13 is a schematic longitudinal sectional side view of a deformation of the lock of Figure 11 and one of its keys;

Figure 14 is a cross-sectional view of the cylindrical lock and its key of Figure 13 taken along the plane D-D shown in Figure 13;

Figure 15 is a schematic longitudinal sectional side view of a modification of the cylinder lock according to the present invention;

Figure 16 is a cross-sectional view of the keyless cylindrical lock taken along the plane E-E shown in Figure 15;

Figure 17 is a schematic longitudinal sectional side view of the deformation of the lock of Figure 15 and its key;

Figure 18 is a cross-sectional view of the cylinder lock and its key of Figure 17 taken along the plane F-F shown in Figure 17.

1: Cylinder lock

3: stator

4: Rotor

5: Longitudinal channel

6: pin

7: pin

10: pointed arch

11: Flat head

12: end

13: Inner cavity

14: Elastic member

15: Groove

16: Hole

17: Elastic element

18: head

31: Channel

32: Part

33: Base plate

34: internal part

35: Long rod

A: plane

Claims (10)

A cylinder lock and its key type include a stator (3), a rotor (4) can rotate in the stator (3), and a longitudinal channel (5) is provided in the rotor (4), and a longitudinal channel (5) is provided in the longitudinal channel (5). Inside, the respective pins (6, 7) are basically arranged opposite to each other, the channel (5) is suitable for embedding a key (2), the key (2) is provided with a base (8) for accommodating the respective levers (9) , The lever (9) can be freely oriented, and is suitable for driving the pins (6, 7), characterized by At least one of the pins (6) is composed of a concave pointed arch (10) and a profile flat head (11), the profile flat head (11) has one end (12), the shape of the end (12) And the size is complementary to the inner cavity (13) of the pointed arch (10); Insert an axially acting elastic device (14) between the pointed arch (10) and the flat head (11), and when no external force is applied to the flat head (11) facing the pointed arch (10), use Are separated from each other; The stator (3) includes a groove (15) whose shape and size are complementary to those of the terminal front end of the pointed arch (10) for temporarily accommodating the front end. The groove ( 15) is aligned with the hole (16) of the rotor (4), and the pointed arch (10) and the flat head (11) are arranged in the hole (16) of the rotor (4); Between the stator (3) and the at least one additional pin (7), insert at least one elastic element (17) for forcing it in the longitudinal channel (5); After the key (2) is inserted into the longitudinal channel (5), the end of the pin (7) and one of the heads (18) of the flat head (11) are adjacent to the lever (9) so that it is opposite to The key (2) is partially inclined for free translation of the pin (6) in the hole (16) of the rotor (4). During its rotation, relative to the contour of the rotor (4), the pointed arch is not required (10) The protruding front end. For example, the cylinder lock and its key of claim 1, which are characterized in that the hole (16) of the rotor (4) accommodating the pin (6) includes continuous parts of different diameters, and at least one first part (19) has a width Greater than the width of the pointed arch (10), at least one second portion (20) has a shape and size substantially complementary to the shape and size of the pointed arch (10), and at least one third portion (21) has a shape And the size is substantially complementary to the shape and size of the head (18) of the flat head (11) to define a pair of cylindrical shapes therewith. For example, the cylindrical lock and its key of claim 1, characterized in that the flat head (11) includes a cylindrical head (22); at least one intermediate shoulder (23), which has substantially similar to the pointed arch (10) ) Is one of the diameters of the outer diameter; and at least one terminal part, the shape and size of which are complementary to the shape and size of the inner cavity (13) of the pointed arch (10). For example, the cylindrical lock and its key of claim 3 are characterized in that the terminal part includes a central cylindrical part (24), the central cylindrical part (24) has a larger diameter, and the terminal cylindrical part (25), The terminal cylindrical portion (25) has a smaller diameter, and the cavity (13) of the pointed arch (10) includes a first opening (26) that faces the The flat head (11) has a diameter complementary to the diameter of the central cylindrical portion (24), and a second opening (27) whose diameter is the same as that of the terminal cylindrical portion (25) Complementary diameters. For example, the cylindrical lock and its key of claim 4 are characterized in that the elastic member (14) is inserted between the front ends of the central cylindrical part (24) having a larger diameter, and the central cylindrical part (24) is opposite to The flat annular part of the terminal cylindrical part (25) and the cavity (13) protrudes radially, and the flat annular part of the cavity (13) is formed at the first opening facing the flat head (11) (26) and the second opening (27). For example, the cylindrical lock and its key of claim 1, characterized in that the groove (15) of the stator is defined between two intersecting inclined surfaces (28, 29), and the inclined surfaces are at the bottom of the groove (15) They are mixed with each other, and mixed with the surface of the channel (30) of the rotor (3) for the rotational accommodation of the rotor (4). For example, the cylinder lock and its key according to any one of claims 1 to 6, characterized in that the lever (9) has a variable, partially flat and discontinuous thickness, which depends on the substantially aligned and adjacent ones The geometry and arrangement of the ends of the pins (6, 7) define a special static configuration of the ends of the pins (6, 7) on the surface of the lever (9). For example, the cylinder lock and its key according to any one of claims 1 to 6, characterized in that the pin (7) can slide in a contour channel (31) of the rotor (4), and the channel (31) includes: Relative to the outer part (32) of the rotor (4), it has a larger diameter and is suitable for slidably receiving a base plate (33) of the pin (7); and an inner part (34), which A long rod (35) having a smaller diameter and suitable for slidably receiving the pin (7), the at least one elastic element (17) is arranged at the bottom of the channel (31) and the base plate (33) between. For example, the cylindrical lock and key thereof according to any one of claims 1 to 6, characterized in that the stator (3) includes a cylindrical groove (36), and the cylindrical groove (36) is connected to the channel (31) Aligned to accommodate a complementary pin (38) that abuts the base plate (33) for the elastic element (17), and an axially acting spring (39) is arranged on the complementary pin (38) Between the pin (38) and the bottom of the cylindrical groove (36), the complementary pin (38) is forced to face the longitudinal channel (5) of the rotor (4). For example, the cylinder lock and key thereof according to any one of claims 1 to 6, characterized in that the lever (9) has a substantially flat shape and can pivot in a base (8) at a peripheral edge thereof The base (8) is complementary to the profile of the lever (9), and the opposite edge of the lever (9) swings freely between extreme configurations protruding from the profile of the key (2).

Images