ES2592954B1 - Modular Lock Cylinder - Google Patents

Abstract

Modular lock cylinder, in which both the front module (2) and the rear module (3), as well as possible intermediate modules (4) incorporating the modular lock cylinder (1), contain a cavity parallel (5) to the cylinder axis (6) markedly separated from it capable of partially receiving at any of its ends a fixing bolt (7) with perimeter recesses (8) of semicircular section at said ends, perimeter recesses (8) housing at least one bolt clamping (9) of complementary semicircular section inserted transversely to the cylinder axis (6), which acts against the fixing bolt (7); and because both the front module (2) and the rear module (3), as well as possible intermediate modules (4) that incorporate the modular lock cylinder (1), have a recess (12) at the ends of their housing cavity of the rotor capable of receiving a bushing (11).

Description

5

10

fifteen

twenty

25

30

35

DESCRIPTION

"MODULAR LOCK CYLINDER”

FIELD OF THE INVENTION

This invention concerns a modular lock cylinder, in particular a modular cylinder containing at least one front module and one rear module that receive the rotor of the lock bulb.

STATE OF THE PREVIOUS TECHNIQUE

At present and as a reference to the state of the art, it is usual and known in the modular lock cylinders the use of at least one front module and one rear module, which are linked through a bolt or plate inserted coinciding with the direction of the axis of the lock cylinder, bolt or plate that is fully or partially inserted in both modules. However, these solutions present in the market contain the following drawbacks.

On the one hand, many joint systems between modules employ threaded bolts, which relate to existing threaded holes in the lock cylinder modules. The need to have to machine the modules to make the threaded holes increases the production costs of said modules. In addition, it is common for these threaded bolts to only contain thread at one of its ends, having to use other methods of fastening at the opposite end, such as pins. On the other hand, there are solutions that use bolts or plates with holes, through which a bolt or pin is introduced that keeps them in position within the module of the lock cylinder. These solutions are less sharp, since when making a hole or several in an element of small dimensions, the concentration of stresses in said element increases, and therefore, it is more likely to occur when the pins are introduced by means of tools such as hammers, since these pins must go under pressure. Another disadvantage that this type of unions between lock cylinder modules presents is that it is usual that the point of union is very far from the axis of the cylinder, favoring the moment that is generated in the fixing bolt in

5

10

fifteen

twenty

25

30

35

an attempt of fraudulent opening of the lock.

EXPLANATION OF THE INVENTION AND ADVANTAGES

In the face of this state of affairs, the present invention refers to a modular lock cylinder, which contains the rotor of the lock bulb, in which both the front module and the rear module, as well as possible intermediate modules incorporating the cylinder of modular lock, they contain a cavity parallel to the axis of the cylinder markedly separated from it capable of partially receiving at any of its ends a fixing bolt with perimetral recesses of semicircular section at said ends, perimeter recesses housing at least one section fastening bolt complementary semicircular inserted transversely to the axis of the cylinder, which acts against the fixing bolt; and because both the front module and the rear module, as well as possible intermediate modules that incorporate the modular lock cylinder, have a recess at the ends of its cavity to accommodate the lock rotor capable of receiving a bushing.

Thanks to this configuration, the different modules of the lock cylinder can be joined in a simple way. The fixing bolts, which are going to be coaxially introduced with respect to the axis of the cylinder, can be introduced into the parallel cavities arranged in the different modules by either of their ends interchangeably, since both are equal, not requiring a specific position. Furthermore, in order to fix said fixing bolts and prevent them from abandoning their position within the cavity parallel to the cylinder axis, transversely, fastening bolts are arranged that are linked to the semicircular section perimeter recesses existing in said fixing bolts, preventing their axial displacement As a second method of fixing between modules, bushes are used that are placed between the different modules, housed in the recesses existing at the ends of the cavities that house the rotor of the lock, so that this cavity is well aligned. On the other hand, the distance from the cylinder axis to the parallel cavity that houses

5

10

fifteen

twenty

25

30

35

the fixing bolt is reduced to prevent the moment that appears in an attempt to force the modular lock cylinder large enough to achieve its breakage.

It is worth highlighting the importance of performing perimeter recesses in the fixing bolt with a semicircular section against other types of executions, since they increase the resistance of the modular lock cylinder and its safety against attempts to force the lock.

DRAWINGS AND REFERENCES

To better understand the nature of the invention, an attached form of industrial realization is shown in the accompanying drawings, which is merely illustrative and not limiting.

Figure 1 shows an exploded isometric view of the modular lock cylinder (1), in which the different elements that compose it are appreciated, and with two enlarged details to appreciate the connection between the fixing bolts (7) and the bolts of support (9).

Figure 2a shows a sectional view with respect to the vertical axis of the modular lock cylinder (1), being able to appreciate the position adopted by the fixing bolts (7) in the axial cavities (5).

Figure 2b shows a cross-sectional view of the axis of the cylinder (6), where the connection of the fixing bolt (7) with the fastening bolts (9) can be seen.

1. - Modular lock cylinder.

2. - Front Module.

3. - Rear Module.

4. - Intermediate Module.

5. - Parallel cavity.

6. - Cylinder shaft.

7. - Fixing bolt.

8. - Perimeter recess.

9. - Clamping bolt.

10. - Transverse cavity.

11. - Cap.

5

10

fifteen

twenty

25

30

35

12.- Discount.

EXHIBITION OF A PREFERRED EMBODIMENT

With regard to the drawings and references listed above, a preferred embodiment of the object of the invention, referring to a modular lock cylinder, of those containing the lock bulb rotor, in which both are illustrated the front module (2) as the rear module (3), as well as possible intermediate modules (4) incorporating the modular lock cylinder (1), contain a cavity parallel (5) to the axis of the cylinder (6) markedly separated from the It is also capable of partially receiving a fixing bolt (7) with perimeter recesses (8) of semicircular section at said ends, perimeter recesses (8) that house at least one clamping bolt (9) of complementary semicircular section inserted transversely to the axis of the cylinder (6), which acts against the fixing bolt (7); and because both the front module (2) and the rear module (3), as well as possible intermediate modules (4) that incorporate the modular lock cylinder (1), have a recess (12) at the ends of their housing cavity of the rotor capable of receiving a bushing (11).

In figure 1 you can see the different elements that make up this modular lock cylinder (1), which for the mode of execution of the figure, is mainly formed by a front module (2), a rear module (3) and two intermediate modules (4), which use two fixing bolts (7) and three bushings (11) for joining.

The fixing between the different modules that make up the modular lock cylinder (1) of figure 1 is carried out as follows. If one of the joints is analyzed, such as the union between the frontal module (2) and the intermediate module (4), firstly the fixing bolt (7) is introduced by any of its ends in the parallel cavity ( 5) to the axis of the cylinder (6) of one of the modules to be joined. It should be noted that the fixing bolts (7) are reversible, since their method of joining at both ends is the same. Once the fixing bolt (7) reaches the maximum depth in the axial cavity (5) of the module in which it has been

5

10

fifteen

twenty

25

30

35

introduced, the fastening bolts (9) are used by introducing them into the respective transverse cavities (10). As can be seen in Figure 2b, said fastening bolts (9) prevent axial displacement of the fixing bolt (7) by being located in the perimetral recesses (8) arranged at the ends of said fixing bolt (7). Then, once an end of the fixing bolt (7) is placed in one of the modules, a bushing (11) is placed in the recess (12) corresponding to said module, so that said bushing (11) is partially inserted in the rotor housing cavity. Once this action has been carried out, the other end of the fixing bolt (7) and the rest of the bushing (11) are introduced respectively in the parallel cavity (5) and in the recess (12) of the adjacent module. Finally, it is necessary to prevent again that the fixing bolt (7) has axial mobility within the parallel cavity (5), so that the fastening bolts (9) are reused for this, introduced by the transverse cavities (10) ) of the module in which you want to make the fixation and being housed in the corresponding perimeter recesses (8).

To perform the union of the rest of the modules, the form of actuation is analogous to that described for the previous union.

As can be seen in the section of figure 2a, both the fixing bolt (7) and the bushing (11) are fully inserted between the different modules that make up the modular lock cylinder (1). The main function of said fixing bolts (7) is to hold the front module (2), the rear module (3) and the intermediate modules (4) together. The bushes (11) arranged in the rotor housing cavity, have the function of providing a second fixing mode and also providing a correct alignment of the rotor housing cavity.

Through the connections made between the lock modules, a modular lock cylinder (1) is obtained, which is valid for use in doors of different thickness, with high resistance to possible fraudulent opening attempts, since its union is close to the axis of the cylinder (6), which implies having to make a greater force for its breakage.

It should be noted that the semicircular design of the perimeter recesses (8) provides greater resistance to bonding,

5

10

fifteen

twenty

25

30

35

because the stress concentrations in these areas are reduced, avoiding possible breakage in these areas of the fixing bolt (7).

Variations in materials, shape, size and disposition of the component elements, described in a non-limiting manner, do not alter the essentiality of this Patent.

Claims (1)

5 10 fifteen twenty 25 30 35 ES 2 592 954 A1 R E I V I N D I C A C I O N E S 1a- Modular lock cylinder, in particular those consisting of at least one front module and one rear module, which contain the rotor of the lock bulb, characterized in that both the front module (2) and the rear module (3) , as well as possible intermediate modules (4) incorporating the modular lock cylinder (1), contain a cavity parallel (5) to the cylinder axis (6), which is markedly separated from it, capable of partially receiving at any of its ends a bolt of fixing (7) with perimeter recesses (8) of semicircular section at said ends, perimeter recesses (8) housing at least one clamping bolt (9) of complementary semicircular section inserted transversely to the axis of the cylinder (6), which acts against the fixing bolt (7); and because both the front module (2) and the rear module (3), as well as possible intermediate modules (4) that incorporate the modular lock cylinder (1), have a recess (12) at the ends of their housing cavity of the rotor capable of receiving a bushing (11). 2a.- Modular lock cylinder, according to the first claim, characterized in that in a preferred embodiment, the perimeter recesses (8) of the ends of the fixing bolt (7) are capable of receiving two fastening bolts (9 ).