Improved modular element for adjustable strap for watches

Abstract

The present invention relates to a modular element (M) for adjustable strap (1) for watches comprising a first link (2) comprising a central element (3) and at least two side elements (4, 5) arranged at opposite sides of the central element (3), said first link (2) being configured to be associated with at least a second link (6) arranged consecutively, a fixed element (7) and a movable element (8) arranged at opposite sides of the first link (2), said movable element (8) being movable between a first position, wherein the movable element (8) is spaced apart from the first link (2) and from the second link (6), and a second position, wherein said movable element (8) is adhered to the first link (2) and to the second link (6), a first pin (9) extending from the fixed element (7) towards the movable element (8) and passing through a passageway (11) formed in the second link (6), a second pin (10) extending from the fixed element (7) to the movable element (8) through a second channel (12) formed in the first link (2), the second pin (10) being movable within the second channel (12) to / from the fixed element (7), wherein that said central element (3) is rotatable around an axis of rotation (X) defined by the second pin (10).

Description

[0001] IMPROVED MODULAR ELEMENT FOR ADJUSTABLE STRAP FOR WATCHES

[0002] Technical Field of the Invention

[0003] The present invention relates to a modular element for adjustable strap for watches. In particular, the improved modular element can be used to allow the facilitated adjustment of the length of a strap.

[0004] Background art

[0005] Watch straps are known to be composed of a plurality of modular elements which are connected to each other in succession to form a deformable chain, so as to allow the user to put it on and take it off. The length of such straps is generally fixed and can only be adjusted by expert personnel who is in charge of disassembling the modules to insert or remove new ones in order to adjust the strap to the user’s wrist.

[0006] To facilitate the disassembly operations of the various modules, straps with one or more sliding and rotatable links have been developed to allow the modules themselves to be coupled and uncoupled.

[0007] In particular, 5 -link modules are known in the prior art, wherein the links located on one side of the strap can slide transversely to the direction of extension of the strap itself and move away from the central link to disengage one or more pins. Once moved away from the central link, the side links are rotated so that the links of the adjacent modules can slide and be removed from the strap.

[0008] However, the presence of pins and many movable parts make the strap more complex and difficult to be made. In fact, the production of such straps requires the use of high-precision manufacturing processes, resulting in high costs and making them suitable only for the luxury market.

[0009] Furthermore, the need to first move away and then rotate only some of the links to allow the movement of others makes the strap adjustment operations difficult and inefficient.Object of the Invention

[0010] The Applicant realized the need to develop a solution that would allow even inexperienced users to independently adjust the length of the straps of the modular elements type without the need for complicated operations, thus simplifying the disassembly / assembly job of the modular elements.

[0011] One object of the present invention is therefore to offer an improved modular element that allows manual and simplified adjustment of the length of a strap without the need to rotate an excessive number of links and / or to use tools.

[0012] The main aim of the present invention is to devise an improved modular element that allows the aforementioned drawbacks of the prior art to be overcome within the framework of a simple, rational, easy and effective to use, as well as inexpensive solution.

[0013] The aforementioned objects are achieved by the modular element in accordance with claim 1.

[0014] The aforementioned objects are achieved by the adjustable strap in accordance with claim 16.

[0015] Brief description of the drawings

[0016] Some embodiments and aspects of the invention will be described below with reference to the accompanying drawings, provided for illustrative purposes only and therefore not limiting, in which:

[0017] - Figures 1 and 2 are perspective exploded views of the modular element according to the present invention;

[0018] - Figures 3 and 4 show perspective partly exploded views of the modular element of Figure 1;

[0019] - Figure 5 is a perspective view of the modular element of Figure 1 ; - Figure 6 shows a perspective partly exploded view of a plurality of modular elements in accordance with the present invention.- Figure 7 is a perspective view of a plurality of modular elements in accordance with the present invention;

[0020] - Figure 8 is a sectional view along line VIII- VIII of the plurality of modular elements in Figure 7;

[0021] - Figure 9 is a sectional view along line IX-IX of the plurality of modular elements in Figure 7.

[0022] Detailed description

[0023] This description relates to an improved modular element M for adjustable strap 1 for watches.

[0024] The strap 1 comprises a plurality of central modular elements M, hereinafter also referred to as links, and a plurality of fixed and movable external elements 7, 8 consecutively arranged one after the other along one direction of extension A-A in order to form an ornamental chain to be connected to the case of a watch. The links M are constrained to each other by means of the fixed and movable external elements 7, 8 which, by means of appropriate pins 9, 10, 24, allow the links M to be supported so as to fit around the wrist of a user. Furthermore, as will be appreciated in the following disclosure, thanks to a specific design, it is possible to remove one or more links M from the ornamental chain by at least partly disengaging specific movable and rotatable external elements R from the respective link M.

[0025] In this context, as illustrated in the figures, the strap 1 comprises a predefined number of links 2, 6, 30 chosen according to the diameter of the user’s wrist. In particular, the figures show a first link 2, a second link 6, a third link 30, and so on, arranged consecutively.

[0026] The links 2, 6, 30 and the fixed and movable elements 7, 8 preferably have a concave-convex profile. It cannot however be ruled out that the links 2, 6 and the elements 7, 8 may have a different profile, e.g., straight on both the upper and lower surfaces.In order not to complicate the description, only the characteristics of the first link 2 will be listed below, specifying that the remaining links of the strap 1 have a substantially similar, if not identical, appearance.

[0027] As shown in the figures, the modular element M comprises a first link 2 configured to be associated with at least one second link 6 arranged consecutively. The second link 6 may be associated with a third link 30 arranged consecutively, and so on.

[0028] The first link 2 comprises a central element 3 and at least two side elements 4, 5 arranged at opposite sides of the central element 3. In detail, the central element 3 is at least partly placed between a first side element 4 and a second side element 5. The central element 3 and the side elements 4, 5 may be constrained to each other so as to at least partly adhere to each other. In particular, the central element 3 of each link is placed, in use, between the side elements 4, 5 of the respective link and of the adjacent link. In other words, the first link 2 may be of the three-link type, i.e., divided into three parts associated with each other.

[0029] In each link, two opposite sides 28, 29 are identified, on which various openings, channels, and holes are obtained, as described in detail below. In particular, the first side 28 is at least partly defined by the first side element 4, and the second side 29, opposite the first side 28, is defined by the second side element 5.

[0030] The modular element M also comprises a fixed element 7 and a movable element 8 arranged at opposite sides 28, 29 of the first link 2. The fixed element 7 adheres to the first side element 4 and the movable element 8 faces the opposite side 29 defined by the second side element 5. As will be better clarified below, the movable element 8 adheres to the second side element 5 under certain conditions of use of the modular element M.According to one aspect, at least one passageway 11 and at least one second channel 12 are identified in the first link 2, both extending transversely from the first side 28 towards the second side 29.

[0031] In detail, the passageway 11 is defined by at least two sections 14, 15 passing through respective side elements 4, 5 and by a further section 16. The sections 14, 15 are aligned with each other. In other words, the passageway 11 can be partly defined by two respective first through channels formed in respective side elements 4, 5 of the first link 2.

[0032] The second channel 12 is a through channel and traverses the central element 3 and the side elements 4, 5. In other words, the second channel 12 is defined by at least three portions 31, 32, 33 defined by the side elements 4, 5 and by the central element 3.

[0033] The movable element 8 is movable between a first position, wherein the movable element 8 is spaced apart from the first link 2 and from the second link 6, and a second position, wherein the movable element 8 adheres to the first link 2 and to the second link 6. In particular, at the first position and at the second position, the movable element 8 is moved away from and adhered to the second side element 5 of the first link 2, respectively.

[0034] The modular element M also comprises a first pin 9 extending from the fixed element 7 towards the movable element 8. Such first pin 9 passes through the passageway 11 formed in the second link 6.

[0035] In detail, the first pin 9 passes through the sections 14, 15 of the side elements of the second link 6 and through the further section 16 defined by the central element 3 of the first link 2. According to one aspect, the sections of the passageway 11 traversed by the first pin 9 are aligned and arranged in the following order transversely to the modular element M: section 14 of the first side element 4 of the second link 6, further section 16 of the central element 3 of the first link 2, section 15 of the second side element 5 of the second link 6.In one embodiment, the first pin 9 is partly inserted within a second cavity 27 of the fixed element 7 and blocked therein. Furthermore, the first pin 9 is engageable in a movable manner into a second hole 26 formed within the movable element 8.

[0036] According to one aspect, the first pin 9 extends along an axis of development Z between a first end 9’ constrained to the fixed element 7 at the second cavity 27 of such fixed element and an opposite end 9” engageable in the second hole 26 of the movable element 8. In detail, the second cavity 27 of the fixed element 7, the second hole 26 of the movable element 8, and the passageway 11 are aligned along the axis of development Z.

[0037] In addition, the modular element M comprises a second pin 10 extending from the fixed element 7 to the movable element 8 through the second channel 12 formed in the first link 2.

[0038] The second pin 10 is movable within the second channel 12 to / from the fixed element 7. In detail, the second pin 10 is constrained to the movable element 8. In particular, the second pin 10 is constrained within a first hole 25 of the movable element 8.

[0039] This second pin 10 is configured to move along the second channel 12 when the movable element 8 is moved between the first position and the second position.

[0040] In detail, the second pin 10 is configured to move:

[0041] towards the fixed element 7 when the movable element 8 is moved from the first position to the second position, and

[0042] away from the fixed element 7 when the movable element 8 is moved from the second position to the first position.

[0043] According to one embodiment not shown in the accompanying figures, the second pin 10 may be partly arranged within a first cavity of the fixed element 7 and sliding in such first cavity. In particular, this first cavity ofthe fixed element 7 is aligned with the second channel 12. The first cavity of the fixed element 7 may pass through such fixed element 7.

[0044] The central element 3 of the first link 2 is rotatable around an axis of rotation X defined by the second pin 10.

[0045] According to one aspect, the second pin 10 extends along the axis of rotation X, in particular, between a first end 22 movable within the second channel 12 and an opposite end 23 constrained to the movable element 8 at a first hole 25 of such movable element 8.

[0046] In particular, the central element 3 of the first link 2 is rotatable around the axis of rotation X to couple to the first pin 9 and / or to uncouple therefrom. The central element 3 and the first pin 9 may be adapted to connect to each other by interference and / or by interlocking.

[0047] In one embodiment, the central element 3 has a recess 13 configured to couple to and uncouple from said first pin 9 during the movement of the central element 3 around the axis of rotation X. The recess 13 of the central element 3 may be configured to move closer to and further away from the first pin 9 as the central element 3 rotates around the axis of rotation X. The central element 3 may have a clasp-shaped portion bent into a hook shape defining such recess 13 and couplable to the first pin 9.

[0048] In detail, the recess 13 is configured to receive at least part of the first pin 9. The recess 13, at least when coupled to the first pin 9, is placed between the two sections 14, 15, which are separate from each other, of the passageway 11 defined by the side elements 4, 5. In particular, the recess 13 defines at least partly the further section 16 of the passageway 11.

[0049] According to one aspect, the recess 13 is located at a lower face of the strap 1 and is preferably adapted to be concealed from view under a condition of use of the strap 1.

[0050] According to one aspect, the central element 3 has a seat configured to receive a tool adapted to facilitate the rotation of the central element 3around the axis of rotation X. In particular, the seat is adapted to receive the tip of a pin, a toothpick, a pen, a pencil, or the like. The seat is located at the lower side of the strap and is preferably adapted to be concealed from view under a condition of use of the strap 1. The central element 3 can be rotated around the axis of rotation X by a user manually without the use of tools or, if necessary, using a simple tool generally available to the user. In one embodiment, the central element 3 is switchable between a free configuration and a blocking configuration. In the free configuration, the rotation of the central element 3 around the axis of rotation X is free. In the blocking configuration, the rotation of the central element 3 around the axis of rotation X is blocked.

[0051] The central element 3 can be configured to switch between the blocking configuration and the free configuration when the movable element 8 moves between the first position and the second position, preferably automatically. Specifically, the central element 3 is in the blocking configuration when the movable element 8 is placed at the second position. Conversely, the central element 3 is in the free configuration when the movable element 8 is at the first position.

[0052] In other words, the rotation of the central element 3 around the axis of rotation X is prevented when the movable element 8 adheres to the first link 2 and is allowed when such movable element 8 is moved away from the same first link 2.

[0053] Advantageously, allowing the central element 3 to rotate only when the movable element 8 is moved away from the first link 2 reduces the likelihood that the first pin 9 and the central element 3 will be unintentionally and undesirably uncoupled from each other during the standard use of the strap.

[0054] In one embodiment, the modular element M comprises a third pin 24 extending from the second side element 5 towards the central element 3through a third channel 17 formed within the second side element 5. The third channel 17, in particular, passes through the second side element 5 and extends from the second side 29 towards the central element 3.

[0055] The third pin 24 is movable within such third channel 17 from and / or towards the central element 3 to disengage / engage an opening 18 of the same central element 3 in the switch between the free configuration and the blocking configuration. In detail, the opening 18 of the central element 3 is aligned with the third channel 17.

[0056] The third pin 24 is therefore configured to engage the opening 18 in the blocking configuration and disengage the opening 18 in the free configuration.

[0057] In detail, the third pin 24 extends between a head 34 and an opposite end 35. In particular, at least when the movable element 8 is at the second position, the head 34 is arranged in abutment against the movable element 8 and the opposite end 35 of the third pin 24 engages the opening 18 of the central element 3, thus preventing it from rotating around the axis of rotation X.

[0058] According to one aspect, the modular element M comprises first elastic means 19 arranged between the third pin 24 and the third channel 17. In detail, the first elastic means 19 comprise a spring fitted on the third pin 24 and also arranged within the third channel 17.

[0059] The first elastic means 19 are configured to disengage the third pin 24 from the opening 18 of the central element 3 when the movable element 8 is at the first position, i.e., moved away from the link 2, and thus allow the central element 3 to rotate.

[0060] The third pin 24 is configured to compress such first elastic means 19 at least when the third pin 24 engages the opening 18 and the central element 3 is in the blocking configuration and / or when the movable element 8 is at the second position. In detail, the head 34 can be configured to operate onsuch first elastic means 19 by compressing them when the movable element 8 is moved from the first position to the second position.

[0061] In detail, the first elastic means 19 are configured to facilitate the movement of the third pin 24 away from the central element 3. In detail, the first elastic means 19 can be configured to move the third pin 24 along the third channel 17 automatically when the movable element 8 is moved from the second position to the first position. In other words, the first elastic means 19 are configured to switch the central element 3 from the blocking configuration to the free configuration automatically when the movable element 8 is moved away from the first link 2.

[0062] According to one aspect, the third pin 24 is configured to project from the third channel 17 towards the movable element 8 in the free configuration of such central element 3. In detail, the head 34 of the third pin 24 is configured to move along the third channel 17 and project therefrom towards the movable element 8, at least when the movable element 8 is moved towards the first position, so that the respective opposite end 35 disengages the opening 18 of the central element 3.

[0063] In one embodiment, the modular element M comprises a receiving member 36 arranged between the third pin 24 and the third channel 17. In detail, the receiving member 36 is adapted to receive the first elastic means 19 and the third pin 24 therein. The first elastic means 19 are arranged between the third pin 24 and such receiving member 36. The receiving member 36 is adapted to keep such first elastic means 19 compressed so that the same means can automatically move the third pin 24 along the third channel 17 when the movable element 8 is moved towards the first position.

[0064] According to one aspect, the modular element may comprise a blocking member 40 connected to the third pin 24. In particular, the third pin 24 has a seat adapted to receive the blocking member 40. The blocking member 40 comprises a washer fitted onto the third pin 24 and arranged within saidseat. The blocking member 40 is adapted to fix the mutual position between the receiving member 36 and the third pin 24. Advantageously, the blocking member 40 ensures that the end 35 of the third pin 24 protrudes from the receiving member 36 to be inserted in the opening 18 of the central element 3.

[0065] The modular element M may have a lateral extension, i.e., parallel to the axis of rotation X, of between 6 millimeters and 30 millimeters.

[0066] In one embodiment, the modular element M has a total lateral extension of 22 millimeters, wherein:

[0067] the fixed element 7 and the movable element 8 have a lateral extension of 4.50 millimeters each, and

[0068] the side elements 4, 5 have a lateral extension of 5.90 millimeters each,

[0069] the central element 3 has a lateral extension of 1.70 millimeters. The first pin 9 has an extension along the axis of development Z equal to approximately 17.50 millimeters. The second pin has an extension along the axis of rotation X equal to approximately 15.80 millimeters. The third pin 24 has an extension equal to approximately 7.00 millimeters. The receiving member 36 has an extension equal to approximately 5.80 millimeters. According to one aspect, the third pin 24 has a variable section along the longitudinal direction Y of extension of the third pin 24. Specifically, the head 34 of the third pin 24 has a larger section than the respective opposite end 35. In particular, the opposite end 35 of the third pin 24 and the opening 18 of the central element 3 are sized in relation to each other so that the opposite end 35 can pass through such opening 18. In one embodiment, the third pin 24 has a circular section with a diameter of approximately 2.40 millimeters at the head 34 and of approximately 1.00 millimeters at the relevant opposite end 35.In detail, the receiving member 36 has a smaller extension than the lateral extension of the second side element 5 and of the third pin 24. The receiving member 36 may have an extension along such longitudinal direction Y of between 3.00 millimeters and 3.90 millimeters, preferably of between 3.10 millimeters and 3.60 millimeters.

[0070] In one embodiment, the modular element M comprises second elastic means 20 arranged between the second pin 10 and the second channel 12. The second elastic means 20 comprise a spring arranged around the second pin 10. Advantageously, the spring is fitted on the second pin 10 and also inserted in the second channel 12 of the first link 2.

[0071] The second elastic means 20 are particularly configured to counteract the movement of the second pin 10 within the second channel 12 along the axis of rotation X in order to keep such movable element 8 normally adhered to said first link 2. The second elastic means 20 are configured to counteract the movement of the movable element 8 from the second position towards the first position and vice versa to promote the movement of the same movable element 8 from the first position towards the second position. In other words, the second elastic means 20 are configured to keep the movable element 8 normally adhered to the second side 29 of the first link 2.

[0072] The first and the second elastic means 19, 20 can be preloaded and / or pretensioned to exert respective opposite forces to each other on the movable element 8 and / or on the third pin 24 and on the second pin 10, respectively. In fact, the first elastic means 19 exert on the movable element 8, through the third pin 24, a first stress force directed away from the central element 3, and the second elastic means 20 exert on the same movable element 8, through the second pin, a second tensile force opposite the first thrust force. In detail, the second force exerted by the second elastic means20 is greater in module than the first force exerted by the first elastic means 19.

[0073] In addition, the modular element M may comprise a fastener 21 arranged within the second channel 12. In particular, the central element 3 and the side elements 4, 5 of the first link 2 are constrained to each other at least along or parallel to the axis of rotation X by means of the fastener 21.

[0074] The second pin 10 is coupled to the fastener 21 in a sliding manner. In other words, the second pin 10 can slide within the fastener 21 along the second channel 12.

[0075] The fastener 21 extends along the axis of rotation X and is adapted to receive the second elastic means 20 and the second pin 10. This fastener 21 has a variable section along the axis of rotation X and extends by approximately 5.80 millimeters along the same axis of rotation X.

[0076] According to one aspect, the fastener 21 may have protrusions along its extension configured to interfere with the central element 3 and / or each side element 4, 5. In fact, the fastener 21 is constrained to the central element 3 and to the side elements 4, 5 by interference by means of these protrusions. For example, the fastener 21 has a circular section that varies in diameter along the axis of rotation X between 2.70 millimeters and 2.75 millimeters. According to one aspect, the movable element 8 is configured to allow, at the first position, to:

[0077] disengage the first pin 9 from the second hole 26, and / or disengage the third pin 24 from the opening 18 of the central element 3, and / or

[0078] rotate the central element 3 around the axis of rotation X and uncouple it from the first pin 9, and / or

[0079] pull the second link 6 off the first pin 9, and / or

[0080] remove the second link 6 from the strap 1.In one embodiment, the modular element M comprises a fourth pin 37 extending from the fixed element 7 towards the first link 2. The fourth pin 37 is arranged within a fourth channel 38 of the first link 2 formed in the first side element 4. The fourth channel 38 is closed and therefore extends transversely from the first side 28 towards the second side 29 by a stretch of predetermined length which is shorter than the lateral extension of the first side element 4. In particular, the fourth channel 38 is aligned with the third channel 17.

[0081] Such fourth pin 37 is constrained to the fixed element 7 at a third cavity 39 and to the first side element 4. The fourth pin 37 is adapted to keep the fixed element 7 adhered to the first side element 4 of the first link 2. The third cavity 39 may have a thread and the fourth pin 37 may be screwed and / or configured to screw in the third cavity 39.

[0082] In one embodiment, the modular element M may comprise a fifth pin entirely similar to the fourth pin 37, adapted to further constrain the fixed element to the first link 2. In particular, the fifth pin may be partly inserted in a fourth cavity formed within the fixed element 7 and blocked therein, and in a further channel formed within the first side element 4.

[0083] According to one aspect, the holes 25, 26 of the movable element 8 and the cavities of the fixed element 7 are blind.

[0084] The present invention also relates to an adjustable strap 1 for watches comprising a plurality of modules comprising at least one modular element M according to any of the embodiments described.

[0085] The strap may comprise a plurality of links as described above combined with another plurality of standard links, i.e., without a movable element 8. In this case, each standard link may comprise channels, at least two of which are through channels for receiving, by shape coupling, a corresponding number of pins the ends of which are adapted to be inserted into two opposite side portions or fixed elements.The strap comprises a second link 6 arranged consecutively to the modular element M. The second link 6 is arranged consecutively to the first link 2 of the modular element M.

[0086] According to one aspect, the strap 1 comprises a second fixed element 7 ’ arranged on the first side 28 of the first link 2 beside the fixed element 7, and a further fixed element 7” or a second movable element 8’ arranged on the second side 29 of the first link 2 beside the movable element 8.

[0087] In addition, the strap 1 comprises a further first pin extending from the second fixed element 7’ towards the further fixed element 7” or second movable element 8’ and passing through a further through passageway formed in a third link 30.

[0088] The operation of the strap 1 of the invention may be as follows.

[0089] When a user needs to widen or narrow the circumference of the strap 1 around the wrist, they grasp the movable element 8 and move it away from the first link 2 to allow the first pin 9 to disengage from the second hole 26. At this point, the movable element 8 can be rotated around the axis of rotation X of the second pin 10, e.g. by 45°. The third pin 24 is then free to slide within the third channel 17 and to be pulled off the opening 18 of the central element 3. The central element 3 can then be rotated around the axis of rotation X to uncouple from the first pin 9. The second pin 10 can be pulled off the passageway 11 of the second link 6 to uncouple the first link or the second link from the strap 1.

[0090] The present invention also relates to a watch comprising a modular element M and / or a strap 1 in accordance with any of the described embodiments. It has in practice been ascertained that the described invention achieves the intended objects and, in particular, the fact should be emphasized that the modular element allows a strap to be adjusted in a very simplified manner, even by inexperienced users.The type of structural combinations of the modular element and of the strap are potentially infinite, and obviously a technician in the field, in order to meet specific and contingent needs, may make numerous modifications and variations to the examples of embodiment described above, all of which are contained within the scope of protection of the invention, as defined by the following claims.

Claims

CLAIMS1) Modular element (M) for adjustable strap (1) for watches comprising: a first link (2) comprising a central element (3) and at least two side elements (4, 5) arranged at opposite sides of the central element (3), said first link (2) being configured to be associated with at least a second link (6) arranged consecutively,a fixed element (7) and a movable element (8) arranged at opposite sides of the first link (2), said movable element (8) being movable between a first position, wherein the movable element (8) is spaced apart from the first link (2) and from the second link (6), and a second position, wherein said movable element (8) is adhered to the first link (2) and to the second link (6),a first pin (9) extending from the fixed element (7) towards the movable element (8) and passing through a passageway (11) formed in the second link (6),a second pin (10) extending from the fixed element (7) to the movable element (8) through a second channel (12) formed in the first link (2), the second pin (10) being movable within the second channel (12) to / from the fixed element (7),characterized by the fact that said central element (3) is rotatable around an axis of rotation (X) defined by the second pin (10).2) Modular element (M) according to the preceding claim, wherein said central element (3) has a recess (13) configured to couple and uncouple with said first pin (9) during the movement of said central element (3) around said axis of rotation (X), said recess (13) being placed between separate sections (14, 15) of said passageway (11) when coupled to said first pin (9).3) Modular element (M) according to any one of the preceding claims, wherein said central element (3) is switchable between a free configuration, wherein its rotation around said axis of rotation (X) is free, and a blockingconfiguration, wherein the rotation of said central element (3) around said axis of rotation (X) is blocked.4) Modular element (M) according to any one of the preceding claims, comprising a third pin (24) extending from one of said side elements (4, 5) towards the central element (3) through a third channel (17) formed within said side element (3, 4), said third pin (24) being movable within said third channel (17) to / from the central element (3) to disengage / engage an opening (18) of said central element (3) in the movement between the free configuration and the blocking configuration.5) Modular element (M) according to the preceding claim, wherein the third pin (24) is configured to:engage the opening (18) of the central element (3) in the blocking configuration,disengage the opening (18) of the central element (3) in the free configuration.6) Modular element (M) according to claim 4 or 5, comprising first elastic means (19) arranged between the third pin (24) and the third channel (17),said third pin (24) being configured to compress said first elastic means (19) at least when said third pin (24) engages said opening (18) and said central element (3) is in the blocking configuration and / or when said movable element (8) is at the second position,said first elastic means (19) being configured to disengage said third pin (24) from the opening (18) of the central element (3) when said movable element (8) is at the first position.7) Modular element (M) according to any one of the preceding claims 4 to 6, wherein said third channel (17) passes through said side element (3, 4), said third pin (24) being configured to project from said third channel(17) towards said movable element (8) in the free configuration of said central element (3).8) Modular element (M) according to any one of the preceding claims, comprising second elastic means (20) arranged between the second pin (10) and the second channel (12), said second elastic means (20) being configured to promote and / or to counteract the movement of the second pin (10) within the second channel (12) along the axis of rotation (X) in order to keep said movable element (8) normally adhered to said first link (2). 9) Modular element (M) according to the preceding claim when dependent on claim 6, wherein said first and second elastic means (9, 10) are preloaded or pretensioned to exert respective forces of opposite way to each other on the movable element (8) and / or on the third pin (24) and on the second pin (10), respectively.10) Modular element (M) according to any one of the preceding claims, comprising a fastener (21) arranged within said second channel (12), the central element (3) and the side elements (4, 5) of the first link (2) being constrained to each other at least along said axis of rotation (X) or parallel thereto by means of said fastener (21), said second pin (10) being coupled to said fastener (21) in a sliding manner.11) Modular element (M) according to any one of the preceding claims, wherein said second pin (10) extends along said axis of rotation (X) between a first end (22) movable within the second channel (12) and an opposite end (23) constrained to the movable element (8) at a first hole (25) of said movable element (8).12) Modular element (M) according to any one of the preceding claims, wherein said first pin (9) is:partly inserted within a second cavity (27) of the fixed element (7) and blocked therein,engageable in a movable manner in a second hole (26) made within the movable element (8).13) Modular element (M) according to the preceding claim, wherein said movable element (8) is configured to allow, at the first position, to:disengage the first pin (9) from the second hole (26), and / or disengage the third pin (24) from the opening (18) of the central element (3), and / orrotate the central element (3) around the axis of rotation (X) and uncouple it from the first pin (9), and / orpull the second link (6) off the first pin (9), and / orremove the second link (6) from the strap (1).14) Adjustable strap (1) for watches, comprising a plurality of modules comprising at least one modular element (M) according to any one of the preceding claims and at least a second link (6) arranged consecutively.

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