DEVICE FOR CONNECTING TWO ELEMENTS OF A WATCH

Abstract

 The present invention relates to a device (10) for connecting a first element (C) to a second element (M1) of a watch (O), said connecting device (10) comprising a first part (30) connectable to the first element (C) and a second part (60) connectable to the second element (M1) and rotatably coupled to the first part (30), said first part (30) comprising a main body (32) and two half-pins (34a, 34b) adapted to assume a position protruding from the main body (32) in which the two half-pins (34a, 34b) are insertable in respective two seats of the first element (C) for connecting the first part (30) to the first element (C), the two half-pins (34a, 34b) being adapted to assume a retracted position adapted to allow at least the release of the first part from the first element (C) of the connecting device (10). The device comprises a mechanism (40) adapted to position the two half-pins (34a, 34b) in the protruding position for connecting the first part (30) to the first element (C) and adapted to bring the two half-pins (34a, 34b) from the protruding connecting position to the retracted position. The two half-pins (34a, 34b) are brought into the retracted position by rotating the second part (60) with respect to the first part (30) about said coupling axis (Xc) by an angle greater than a predetermined threshold angle (A) starting from a first configuration wherein said two parts (30, 60) connect said second element (M1) to said first element (C) to a second configuration wherein said first part (30) is releasable from said first element (C).

Description

TECHNICAL FIELD OF THE PRESENT INVENTION

[0001] The present invention belongs to the field of watchmaking. In particular, the invention is directed to systems for connecting two elements of the watch, such as for example for connecting the bracelet, or strap, to the case of the watch or for connecting the closing device associated with the bracelet to the bracelet itself or for connecting two portions of the bracelet. More in particular, the invention is directed to quick release systems between the two elements of the watch.

DESCRIPTION OF THE STATE OF THE ART

[0002] Over time, the connection between two elements of a wristwatch has evolved based on the materials used.

[0003] For example, this evolution concerned the connection between the bracelet/strap and the case of the watch.

[0004] Traditionally, the connection of a watch with a leather or fabric strap takes place through a pin with movable ends, also known as a spring bar, which is inserted into a slot of the strap and whose ends are inserted into two respective holes in the lugs of the case. Initially, this bar was simple and provided with a collar at the end that required specific tools for the release.

[0005] Subsequently, solutions allowing the bar to be released by using the fingers to retract one or both ends without the use of tools were developed. These solutions have made it possible to easily change the watch strap to suit different occasions, thus increasing versatility by simply changing the shade or design of one's watch strap for different occasions. This also avoids the need to buy other watches. The same concept has also been applied by some manufacturers to the watches with mesh bracelets.

[0006] However, such spring bar systems require some skill on the part of the user in order not to run the risk of damaging/scratching the case and even one's own fingernails. For this reason, companies have developed new systems with quick release mechanisms.

[0007] Most of these systems include levers and/or release buttons to be operated for the release movement of the mechanism to take place.

[0008] A criticality of this mechanism lies in the possible hooking uncertainty if the button/lever does not click correctly in its connecting position. Dust, moisture, hair and other dirt over time can get stuck into the mechanism making it difficult to operate.

[0009] In addition, these levers/buttons are normally small in size and cannot be easily operated by the user and/or require the intervention of specialised personnel. Said criticalities were found in particular with reference to the connecting mechanisms between the bracelet and the watch case, as mentioned above. However, the same criticalities can be found in general in the systems/mechanisms for connecting two elements of the watch, such as for example the connection of the closing device associated with the bracelet to the bracelet itself or the connection of two portions of the bracelet.

[0010] It is therefore an object of the present invention to obviate the aforementioned drawbacks encountered in the connecting systems according to the prior art.

[0011] In particular, an object and purpose of the present invention is to propose an alternative to the known mechanisms of the prior art, by proposing a connecting device that allows two elements of a watch to be safely and reliably released without compromising the stability of the connection.

[0012] Another object of the present invention is to propose a solution that is easy to use for the user.

[0013] A further object of the present invention is to propose a solution that is aesthetically pleasing and comfortably wearable by the user.

[0014] Another object of the present invention is to propose a solution that is more reliable over time than the systems of known type.

DESCRIPTION OF THE PRESENT INVENTION

[0015] In a first aspect thereof, the present invention therefore relates to a device for connecting a first element to a second element of a watch, said connecting device comprising a first part connectable to said first element and a second part connectable to said second element and rotatably coupled to said first part about a coupling axis, said first part comprising a main body and two half-pins adapted to assume a position protruding from said main body in which said two half-pins are insertable in respective two seats of said first element for connecting said first part to said first element, said two half-pins being adapted to assume a retracted position adapted to allow at least the release of said first part from said first element, wherein said connecting device comprises a mechanism adapted to position said two half-pins in said protruding position for connecting said first part to said first element and adapted to bring said two half-pins from said protruding connecting position to said retracted position, said mechanism being configured to bring said two half-pins into said retracted position by rotating said second part with respect to said first part about said coupling axis by an angle greater than a predetermined threshold angle starting from a first configuration wherein said two parts connect said second element to said first element to a second configuration wherein said first part is releasable from said first element.

[0016] Advantageously, a user is able to quickly remove the bracelet without the aid of tools or the intervention of specialised personnel.

[0017] Preferably, said predetermined threshold angle is at least equal to 30°, preferably equal to 70°.

[0018] In a preferred embodiment, said mechanism comprises:

• a slider movable between a locking position and an unlocking position along a drive axis, said slider interacting with said two half-pins to bring them from said protruding locking position to said retracted release position and, vice versa, from said retracted release position to said protruding locking position;
• an actuator moved by said second part and co-operating with the slider, said actuator being adapted to convert the rotational movement of the second part into a movement of the slider along said drive axis.

[0019] According to a preferred embodiment of the invention, the connecting device comprises a transmission element engaging in a channel of the slider and in a channel of a first half-pin of said two half-pins, said channels extending longitudinally and transversely with respect to a translation axis of the first half-pin and longitudinally and transversely with respect to the drive axis of the slider. According to a preferred alternative embodiment of the invention, the connecting device comprises a transmission element made in piece with the slider, wherein the transmission element engages in an open channel of a first half-pin of said two half-pins and wherein the transmission element and the channel extend longitudinally and transversely with respect to a translation axis of the first half-pin and longitudinally and transversely with respect to the drive axis of the slider. Preferably, said actuator comprises an eccentric element.

[0020] Advantageously, the use of the eccentric element allows to effectively transform a rotary movement into a translational movement, guaranteeing a precise and reliable adjustment of the connecting system, as well as simplifying the structure of the mechanism and reducing wear over time.

[0021] In a preferred embodiment, the mechanism comprises elastic means adapted to push the slider towards the locking position.

[0022] The elastic means guarantee an automatic return of the slider to the locking position, increasing the security of the connecting system and preventing accidental openings.

[0023] According to a preferred embodiment of the invention, the coupling axis is perpendicular to the drive axis of the slider.

[0024] The perpendicular arrangement of the axes allows a compact and efficient configuration, reducing the overall footprint of the mechanism.

[0025] Preferably, the two half-pins move between the protruding locking position and the retracted release position along a translation axis.

[0026] The movement along a translation axis ensures precise positioning of the half-pins, ensuring reliable locking and release and the absence of complex rotations or movements, minimising friction between the components and avoiding play or inaccuracies that could compromise the stability of the connection.

[0027] In a preferred embodiment, the translation axis of the two half-pins is parallel to the coupling axis.

[0028] The parallelity of the axes allows to maintain a compact and well-integrated mechanical configuration in the overall system, ideal for the design of watches. According to a preferred embodiment of the invention, the translation axis of the two half-pins is perpendicular to the drive axis of the slider.

[0029] This configuration allows the movement along the drive axis to be effectively converted into a translation movement of the half-pins, simplifying the operation of the mechanism.

[0030] Preferably, the connecting device of the invention comprises a security system activatable, or deactivatable, by the user to inhibit, or allow, rotation of the second part with respect to the first part.

[0031] The security system allows to avoid accidental rotations that could compromise the locking between the case and the bracelet, improving the reliability of the device.

[0032] The user can advantageously decide when to activate or deactivate the security system, offering greater flexibility in the use of the watch.

[0033] This function makes the device suitable for dynamic or demanding contexts, such as sports activities or work environments, where it is essential to keep the connection firm.

[0034] In a preferred embodiment, the security system comprises a contrasting element positionable in a locking position in which it prevents movement of the slider and in an unlocking position in which it does not interfere with the slider.

[0035] The contrasting element ensures effective control of the slider, preventing unwanted movements and increasing the security of the connecting system. According to a preferred embodiment of the invention, the security system comprises elastic means adapted to push the contrasting element towards the locking position.

[0036] The elastic means ensure that the contrasting element automatically returns to the locking position, improving the security of the system without the need for manual intervention.

[0037] In preferred embodiments for the first and second elements of the watch there is: the first element comprises the watch case and the second element comprises an end of a watch bracelet, or the first element comprises a closing device of a watch bracelet and the second element comprises an end of the bracelet, or the first element comprises a first portion of a watch bracelet and the second element comprises a second portion of the watch bracelet, or the first element and/or the second element comprises another connecting device.

[0038] In another aspect thereof, the present invention refers to a watch comprising a first element, a second element and a device for connecting the first element to the second element, wherein said connecting device is made as described above.

BRIEF DESCRIPTION OF THE DRAWINGS

[0039] In the following, the present invention will be elucidated by the description of preferred embodiments represented in the attached drawing tables. It should be noted, however, that the present invention is not limited to the embodiments depicted in the drawing tables; on the contrary, all those variations or modifications of the embodiment depicted and described which will appear clear, obvious and immediate to the person skilled in the art fall within the framework and scope of the present invention. In particular, in the attached drawing tables:

• figure 1 shows a watch provided with a bracelet with the relative connecting device according to a first preferred embodiment of the invention;
• figure 2 shows some elements of the assembly of figure 1 with the connecting device in the connecting position;
• figure 2A shows an embodiment variant of figure 2;
• figure 3 shows the elements of figure 2 with the connecting device in the release position;
• figure 4A shows in axonometric view the connecting device in the connecting position;
• figure 4B shows in axonometric view the connecting device of figure 4A in the release position;
• figure 5A shows the connecting device of figure 4A with one element removed;
• figure 5B shows the connecting device of figure 4B with one element removed;
• figure 6A shows a top plan view of figure 5A;
• figure 6B shows a top plan view of figure 5B;
• figure 7A shows the plan view along section line VI°- VI° of figure 6A;
• figure 7B shows the plan view along section line VII°- VII° of figure 6B;
• figure 8 shows the plan view along a horizontal section plane of figure 4A;
• figure 9 shows the plan view along a horizontal section plane of figure 4B;
• figure 10 shows the exploded view of the connecting device of figure 4A;
• figure 11 shows the connecting device of figure 5A from another point of view;
• figure 11A shows an enlarged detail of figure 11;
• figure 12 shows the connecting device of figure 11 in a different operating position;
• figure 12A shows an enlarged detail of figure 12;
• figure 13 shows an axonometric view of an embodiment variant of the connecting device of the invention in the connecting position;
• figure 14 shows the connecting device of figure 13 from another point of view and with one element removed;
• figure 14A shows an enlarged detail of figure 14;
• figure 15 shows the connecting device of figure 14 in a different operating position;
• figure 15A shows an enlarged detail of figure 15;
• figure 16 shows in axonometric view the connecting device of figure 13 in the release position;
• figure 17 shows the connecting device of figure 16 from another point of view and with one element removed;
• figure 17A shows an enlarged detail of figure 17;
• figure 18 shows another use of the connecting device of the invention in a watch;
• figure 19 shows an enlarged detail of figure 18 with the connecting device in the release position;
• figure 20 shows an exploded view of figure 19;
• figure 21 shows the watch of figure 18 in a modified condition;
• figure 22 shows an exploded view of a connecting device according to an embodiment variant of the invention;
• figure 23 shows the exploded view of figure 22 from another point of view;
• figure 24 shows an element of figure 22 isolated from the rest;
• figure 25 shows the element of figure 24 from another point of view;
• figure 26 shows a plan view along a horizontal sectional plane of the connecting device of figure 22 in the assembled configuration and connecting position;
• figure 27 shows the sectional view of figure 26 of the connecting device in the release position;
• figure 28 shows in axonometric view the connecting device of figure 22 in the assembled configuration and connecting position and with one element removed;
• figure 28A shows an enlarged detail of figure 28;
• figure 29 shows the connecting device of figure 28 in a different operating position;
• figure 29A shows an enlarged detail of figure 29;
• figure 30 shows in axonometric view the connecting device of figure 28 in the release position;
• figure 30A shows an enlarged detail of figure 30.

DETAILED DESCRIPTION OF SOME PREFERRED EMBODIMENTS OF THE PRESENT INVENTION

[0040] Although the present invention is described below with reference to embodiments thereof depicted in the drawing tables, the present invention is not limited to the embodiments described below and depicted in the drawing tables. On the contrary, the embodiments described and depicted in the drawing tables clarify certain aspects of the present invention, the object of which is in any case defined by the claims.

[0041] The present invention has proved to be particularly advantageous when applied to watches with a mesh or leather bracelet/strap. It should be pointed out, however, that the present invention is not limited to such use. On the contrary, the present invention finds convenient application in all cases involving the use of a bracelet of any type.

[0042] A preferred embodiment of the connecting device 10 according to the present invention is described below with reference to figures 1 to 12.

[0043] The connecting device 10 of the invention, as shown in figure 1, is preferably intended to connect a first element consisting of the case C of a watch O to a second element consisting of a mesh bracelet M, more in particular for connection to an end M1 or M2 of a mesh bracelet M.

[0044] By way of example, figure 2A shows the use of the connecting device 10 of the invention to connect the case C of the watch O to a leather bracelet P, more in particular for the connection of an end P1 of the bracelet P.

[0045] In the following, the connecting device 10 that connects the case C of the watch O to a first end M1 of the bracelet M will be described. Preferably, the case C of the watch O is also connected to the second end M2 of the bracelet M with a connecting device 10 according to the invention.

[0046] The connecting device 10 essentially comprises a first part 30 connectable to the case C of the watch O and a second part 60 connectable to the bracelet M, in particular connectable to the end M1 (or M2) of the bracelet M. The second part 60 is rotatably coupled to the first part 30 around a coupling axis Xc.

[0047] The first part 30 comprises a main body 32 and two half-pins 34a, 34b provided with connecting ends 35a, 35b.

[0048] The two half-pins 34a, 34b are adapted to assume a position protruding from the main body 32, for example as illustrated in figures 4A, 5A, 6A and 8, in which position the ends 35a, 35b can be inserted into respective two seats/holes of the lugs Ca, Cb of the case C to make the connection of the first part 30 to the case C of the watch O, as shown in Figures 1 and 2.

[0049] The same two half-pins 34a, 34b are also adapted to assume a retracted position to allow the release of the first part 30 from the case C, for example as illustrated in figures 4B, 5B, 6B and 9 and better described below.

[0050] The half-pins 34a, 34b move between the protruding locking position and the retracted release position preferably along a translation axis Xt (shown in figure 8).

[0051] The translation axis Xt of the half-pins 34a, 34b is preferably parallel to the coupling axis Xc.

[0052] The connecting device 10 according to the invention comprises a mechanism 40 adapted to position the half-pins 34a, 34b in said protruding connecting position and to bring the two half-pins 34a, 34b from the protruding connecting position into the retracted release position.

[0053] The mechanism 40 is housed inside the main body 32 of the first part 30 of the device 10 and is accessible after removal of a special cover element 33.

[0054] In a preferred embodiment, the cover element 33 is associated with the main body 32 through special fixing screws. In embodiment variants, the cover element may be associated with the main body differently, for example by means of an interlocking and/or snap coupling without the use of screws.

[0055] According to one aspect of the present invention, the mechanism 40 is configured to bring the half-pins 34a, 34b into the retracted release position by rotating the second part 60 with respect to the first part 30 starting from a first configuration of the two parts 30, 60 wherein the bracelet M is connected to the case C to a second configuration of the two parts 30, 60 wherein the bracelet M is releasable from the case C. The retracted position of the half-pins 34a, 34b occurs with a rotation of the second part 60 with respect to the first part 30 by an angle A greater than a predetermined threshold angle AS (as seen from the comparison of figures 7A and 7B).

[0056] The threshold angle AS is preferably chosen at least equal to 30°, more preferably equal to 70°.

[0057] The first configuration of the two parts 30, 60 in which the bracelet M is connected to the case C is shown for example in figures 1, 2, 4A, 5A, 6A and 8 and substantially corresponds to the position of use of the watch O when it is worn by the user.

[0058] The second configuration of the two parts 30, 60 in which the bracelet M is releasable from the case C is shown for example in figures 3, 4B, 5B, 6B and 9 in which the half-pins 34a, 34b are in the retracted release position and the second part 60 is rotated by an angle A equal to about 70°.

[0059] The second part 60 of the device according to the embodiment illustrated in the figures preferably comprises two sides 62a and 62b arranged laterally to the main body 32 of the first part 30 and rotatably constrained to the main body 32 around the coupling axis Xc by means of a rotation pin 64, better visible in figures 8 and 9.

[0060] The rotation pin 64 is fixed to the two sides 62a and 62b in such a way as to rotate integrally to the same sides 62a and 62b.

[0061] The rotation pin 64 is inserted into corresponding mounting holes 63a, 63b of the sides 62a, 62b and preferably has two flat faces adapted to provide the pin 64 with an asymmetrical, non-circular geometry to receive two mounting blocks 66a, 66b interposed between the pin 64 and the respective sides 62a, 62b that make the movement of the sides 62a, 62b and of the pin 64 integral.

[0062] Finally, two lateral fixing screws 68a, 68b, lock the pin laterally at the mounting holes 63a, 63b of the sides 62a, 62b.

[0063] The second part 60, consisting of the two sides 62a, 62b, is connectable to the bracelet M, in particular connectable to the end M1 of the bracelet M which preferably consists of the end mesh M1 of the bracelet M, by means of a through pin, not illustrated, received in connecting holes 69a, 69b of the sides 62a, 62b. In the illustrated embodiment, the connecting holes 69a, 69b consist of through holes made in the respective sides 62a, 62b. In embodiment variants, the connecting holes may consist of blind holes (for example as shown in the embodiment illustrated in figures 18 to 21) and/or holes with at least one threaded portion.

[0064] According to one aspect of the present invention, the mechanism 40 comprises a slider 42 and an actuator 44 co-operating with said slider 42.

[0065] The slider 42 is movable between a locking position and an unlocking position along a drive axis Xa and interacts with the two half-pins 34a, 34b to bring them from the protruding locking position to the retracted release position and, vice versa, from the retracted release position to the protruding locking position.

[0066] The drive axis Xa is preferably perpendicular to the translation axis Xt of the half-pins 34a, 34b.

[0067] Between the slider 42 and the first half-pin 34a there is interposed a first transmission element 50a engaging in a channel 52a of the slider 42 and a channel 54a of the first half-pin 34a. The first transmission element 50a preferably comprises a cylinder 50a and the two channels 52a, 54a preferably consist of respective cylindrical channels. The cylinder 50a and the two channels 52a, 54a extend longitudinally and transversely to the translation axis Xt of the half-pins 34a, 34b and to the drive axis Xa of the slider 42.

[0068] In the preferred embodiment illustrated, the cylinder 50a is locked to the channel 52a of the slider 42 while being free to slide within the channel 54a of the first half-pin 34a.

[0069] In preferred embodiment variants, the cylinder 50 may be locked to the channel 54a of the first half-pin 34a and free to slide within the channel 52a of the slider 42 or free to slide both within the channel 52a of the slider 42 and within the channel 54a of the first half-pin 34a.

[0070] Similarly, between the slider 42 and the second half-pin 34b there is interposed a second transmission element 50b engaging in a channel 52b of the slider 42 and a channel 54b of the second half-pin 34b. The second transmission element 50b preferably comprises a cylinder 50b and the two channels 52b, 54b preferably consist of respective cylindrical channels. The cylinder 50b and the two channels 52b, 54b extend longitudinally and transversely to the translation axis Xt of the half-pins 34a, 34b and to the drive axis Xa of the slider 42.

[0071] In the preferred embodiment illustrated, the cylinder 50b is locked to the channel 52b of the slider 42 while being free to slide within the channel 54b of the second half-pin 34b.

[0072] In preferred embodiment variants, the cylinder 50 may be locked to the channel 54b of the second half-pin 34b and free to slide within the channel 52b of the slider 42 or free to slide both within the channel 52b of the slider 42 and within the channel 54b of the second half-pin 34b.

[0073] The mechanism 40 is then preferably provided with elastic means 70 which act on the slider 42 to push it and hold it in the locking position.

[0074] The elastic means 70 preferably comprise a helical spring 72 connected to the main body 32 of the first part 30 by means of a grub screw 74 and received in a seat 47 of the slider 42. In embodiment variants, different means, with respect to the use of said grub screw, may be provided for connecting the helical spring to the main body.

[0075] The actuator 44 is moved by the second part 60 and co-operates with the slider 42 to convert the rotational movement of the second part 60 into a movement of the slider 42 along the drive direction Xa. In particular, the actuator 44 is moved by the rotation of the sides 62a, 62b through the rotation pin 64. The actuator 44 comprises an eccentric element, or cam, mounted integrally to the rotation pin 64: the actuator 44 preferably comprises a through hole 46 of appropriate shape to couple to the asymmetrical geometry of the pin 64, better visible in figures 7A and 7B.

[0076] In the first configuration of the two parts 30, 60 (figure 8), the slider 42 is in a locking position which is preferably maintained by the pushing action of the helical spring 72 against the slider 42.

[0077] In order to bring the two parts 30, 60 into the second configuration, the sides 62a, 62b are set in rotation with respect to the first part 30 by a predetermined angle A, for example 70° (figure 9).

[0078] The cam 44 is in turn set in rotation through the rotation pin 64. During rotation, the cam 44 pushes the slider 42 along the drive direction Xa and against the force of the helical spring 72. At the same time the two cylinders 50a, 50b slide inside the channels 54a, 54b of the first and second half-pin 34a, 34b generating a displacement force on both half-pins 34a, 34b towards the centre, i.e. towards the retracted release position.

[0079] In such a situation, the first part 30 and the second part 60 of the connecting device 10 can be separated from the case C of the watch O to release the bracelet M from the case C.

[0080] Advantageously, therefore, the release of the bracelet M from the case C takes place simply by rotating the second part 60 with respect to the first part 30 of the connecting device 10 without the use of tools and/or the intervention of specialised personnel.

[0081] Connection operations are also advantageous.

[0082] The connection of the bracelet M to the case C takes place first by arranging the two parts 30, 60 into the second configuration and positioning the first part 30 with the retracted half-pins 34a, 34b aligned with the respective holes of the case C. The second part 60 is then rotated with respect to the first part 30 to arrange the two parts 30, 60 in the first connection configuration, with the half-pins 34a, 34b protruding and inserted into the respective holes of the case C.

[0083] Advantageously, therefore, the connection of the bracelet M to the case C takes place simply by rotating the second part 60 with respect to the first part 30 of the connecting device 10 without the use of tools and/or the intervention of specialised personnel.

[0084] In the embodiment described, the half-pins 34a and 34b of the mechanism 40 are brought into the retracted release position by rotating the second part 60 with respect to the first part 30 by a determined angle A. Preferably, this rotation takes place in a predetermined direction, for example, as shown in figures 2 and 3, by rotating the second part 60 clockwise with respect to the first part 30.

[0085] In embodiment variants, however, the mechanism can be configured such that the half-pins are brought into the retracted release position by rotating the second part with respect to the first part in the opposite direction, for example counterclockwise with respect to the first part.

[0086] As described above, the connecting device 10 allows the connection of the case C of the watch O to a first end M1 of the bracelet M. In a preferred embodiment of the invention, a connecting device according to the invention can be used for connecting a closing device DC of the bracelet M, visible in figure 1, to an end MB of the bracelet M.

[0087] According to the illustrated and described embodiment, the connecting device 10 preferably comprises a security system 90 activatable, or deactivatable, to inhibit, or allow, the aforementioned release action of the connecting device 10.

[0088] The security system 90 inhibits, or allows, rotation of the second portion 60 with respect to the first portion 30.

[0089] The security system 90, as can be seen by comparing figures 11 and 12, comprises a contrasting element 92 positionable in a locking position (Figure 11) in which it prevents the movement of the slider 42, along the drive axis Xa, and in an unlocking position (Figure 12) in which it does not interfere with the slider 42. The contrasting element 92 preferably comprises a head portion 92a operable by the user and a stem 92b defining the contrasting part for the slider 42.

[0090] The contrasting element 92 is preferably associated with elastic means 94, preferably a helical spring 94, which act on the contrasting element 92 to push it and hold it in the locking position. The helical spring 94 is mounted on the main body 32 by means of a grub screw 96.

[0091] According to this embodiment, therefore, the security system 90 is always active and the contrasting element 92 is held in the locking position with the two parts 30, 60 in the first configuration. The action of the contrasting element 92 is in fact to prevent the rotation of the second part 60 with respect to the first part 30 of the connecting device 10.

[0092] To allow the release operation by rotation of the second part 60 with respect to the first part 30, as described above, the user is first obliged to manually act on the head portion 92a to laterally move the stem 92b and bring the contrasting element 92 into the unlocking position (Figure 12) and then proceed with the release by rotating the second part 60.

[0093] When, conversely, the two parts 30, 60 are brought from the second release configuration to the first locking configuration (for example during the assembly of the strap M to the case C) the contrasting element 92 at the end of the rotation of the second part 60 is automatically brought into the locking position by effect of the elastic means 94.

[0094] According to this embodiment, therefore, the security system 90 is automatically activated by effect of the helical spring 94 and can be deactivated by manual action on the contrasting element 92 by the user.

[0095] In embodiment variants, not illustrated, the security system can preferably be shaped in such a way that the contrasting element is stably positionable in the two locking and unlocking positions with respect to the slider.

[0096] To release the bracelet from the case, the contrasting element is brought into the stable locking position in order to proceed with the operations of release of the first part from the case, as described above.

[0097] Conversely, to connect the bracelet to the case, it is first proceeded with the operations of connecting the first part of the connecting device to the case, as described above, until the two parts are positioned in the first configuration and then the contrasting element is manually brought from the unlocking position to the locking position to prevent movement of the slider.

[0098] With reference to figures 13 to 17, an embodiment variant of the security system 190 of the connecting device 10 of the invention is shown which differs mainly from the previously described embodiment in that the contrasting element 192 is in the form of a button: elements corresponding or equivalent to the previously described embodiment are identified by the same reference numerals. According to this embodiment, the security system 190 therefore comprises a contrasting element 192 positionable in a locking position (Figures 13, 14 and 14A) in which it prevents the movement of the slider 42, along the drive axis Xa, and in an unlocking position (Figures 15 and 15A) in which it does not interfere with the slider 42.

[0099] The contrasting element 192 preferably comprises a head portion 192a operable by pushing downwards by the user and a stem 192b defining the contrasting part for the slider 42.

[0100] The contrasting element 192 is preferably associated with elastic means, not illustrated, preferably comprising a helical spring, which act on the contrasting element 192 to push it and hold it in the upward locking position.

[0101] Also according to this embodiment, the security system 190 is always active and the contrasting element 192 is held in the locking position with the two parts 30, 60 in the first configuration.

[0102] To allow the release operation by rotation of the second part 60 with respect to the first part 30, as described above, the user is first obliged to manually act by pushing on the head portion 192a to move the stem 192b downwards and bring the contrasting element 192 into the unlocking position (Figures 15 and 15A) and then proceed with the release by rotating the second part 60 (Figures 16, 17 and 17A). In the unlocking position, the contrasting element 192 is received in a lug 42a made in the slider 42 that allows it to slide.

[0103] When, conversely, the two parts 30, 60 are brought from the second release configuration to the first locking configuration (for example during the step for the assembly of the strap M to the case C) the contrasting element 192 at the end of the rotation of the second part 60 is automatically brought into the locking position by effect of the elastic means.

[0104] This embodiment allows to obtain the same advantages mentioned above for the first embodiment described above.

[0105] With reference to figures 18 to 21, an embodiment variant is shown relating to the use in a watch of one or more connecting devices 10', 10", 10‴ according to the invention: elements corresponding or equivalent to the previously described embodiments are identified by the same reference numerals.

[0106] A series of mutually identical connecting devices 10', 10", 10‴ of the invention, as shown in figure 18, are used inside a mesh bracelet M: a first connecting device 10' is preferably intended to connect a first element M3 consisting of a mesh of the bracelet M to an element consisting of a second connecting device 10"; the second connecting device 10" is preferably intended to connect the first connecting device 10' to a third connecting device 10‴; the third connecting device 10‴ is preferably intended to connect the second connecting device 10" to a mesh M4 of the bracelet M.

[0107] The connecting devices 10', 10", 10‴ used therein can be of the type previously described: in such connecting devices 10', 10", 10‴ the connecting holes 69a, 69b made in the respective sides 62a, 62b consist of blind holes (therefore not visible in the figures).

[0108] A possible use of the connecting devices 10', 10", 10‴ inside the bracelet M is illustrated in figures 18 to 21. This use corresponds to an action of reducing or shortening the length of the bracelet M. This can be deduced by comparing figures 18 and 21, where the bracelet M is shortened by an amount equivalent to the extension of a connecting device 10".

[0109] In a first step, illustrated in figure 19, the third connecting device 10‴ is released from the second connecting device 10" according to the methods described above (rotation of the second part 60 with respect to the first part 30 in a predetermined direction, for example clockwise). In a subsequent step, illustrated in figure 20, the second connecting device 10" is also released from the first connecting device 10' with the same methods (rotation of the second part 60 with respect to the first part 30 in a predetermined direction, for example clockwise). Note how the mesh M3 of the bracelet M is substantially shaped like the case C previously described and therefore two hooking holes are identified in respective arms Ca, Cb (substantially corresponding to the lugs Ca, Cb of the case C).

[0110] The second connecting device 10" can then be removed and the third connecting device 10‴ can be hooked to the first connecting device 10' following the methods described above (rotation of the second part 60 with respect to the first part 30 in the opposite direction, for example counterclockwise). In this way, a new version of the bracelet M with a reduced length is obtained (figure 21).

[0111] It is clear that with similar methods it will be possible to provide for inserting one or more connecting devices inside the bracelet for lengthening thereof.

[0112] In this context, therefore, the connecting devices can function as adjustable elements that allow the length of the bracelet to be adapted to meet different dimensional needs.

[0113] With reference to figures 22 to 30, a relative embodiment variant of a connecting device 210 of the invention is shown: elements corresponding or equivalent to the previously described embodiments are identified by the same reference numerals. The connecting device 210 comprises a first part 30 and a second part 60. The second part 60 is rotatably coupled to the first part 30 about a coupling axis Xc. The first part 30 comprises a main body 32 and two half-pins 234a, 234b provided with connecting ends 235a, 235b.

[0114] The two half-pins 234a, 234b are adapted to assume a position protruding from the main body 32, for example as illustrated in figure 26, and a retracted position, as illustrated in figure 27.

[0115] The half-pins 234a, 234b move between the protruding locking position and the retracted release position preferably along a translation axis Xt.

[0116] The translation axis Xt of the half-pins 234a, 234b is preferably parallel to the coupling axis Xc.

[0117] The connecting device 210 comprises a mechanism 40 adapted to position the half-pins 234a, 234b in said protruding connecting position and to bring the two half-pins 234a, 234b from the protruding connecting position to the retracted release position.

[0118] The mechanism 40 is housed inside the main body 32 of the first part 30 of the device 10 and is accessible after removal of a special cover element 33.

[0119] The cover element 33 is associated with the main body 32 through a special fixing screw 33a.

[0120] The mechanism 40 is configured to bring the half-pins 234a, 234b into the retracted release and protruding connecting positions by rotating the second part 60 with respect to the first part 30, according to the previously described methods which are fully referred to herein.

[0121] The second part 60 of the device according to the embodiment illustrated in the figures preferably comprises two sides 62a and 62b arranged laterally to the main body 32 of the first part 30 and rotatably constrained to the main body 32 around the coupling axis Xc by means of a rotation pin 64, better visible in figures 26 and 27.

[0122] The rotation pin 64 is fixed to the two sides 62a and 62b in such a way as to rotate integrally to the same sides 62a and 62b.

[0123] The rotation pin 64 is inserted into corresponding mounting holes 63a, 63b of the sides 62a, 62b and preferably has two flat faces adapted to provide the pin 64 with an asymmetrical, non-circular geometry.

[0124] Finally, two side fixing elements 68a, 68b, for example two grub screws, lock the pin at the mounting holes 63a, 63b of the sides 62a, 62b.

[0125] The second part 60, consisting of the two sides 62a, 62b, is preferably connectable to a bracelet M by means of a pin, not illustrated, received in connecting holes 69a, 69b of the sides 62a, 62b.

[0126] In the illustrated embodiment, the connecting holes 69a, 69b consist of blind holes made in the respective sides 62a, 62b. In embodiment variants, the connecting holes may consist of through holes and/or holes with at least one threaded portion. The mechanism 40 comprises a slider 42 and an actuator 44 co-operating with said slider 42.

[0127] The slider 42 is movable between a locking position and an unlocking position along a drive axis Xa and interacts with the two half-pins 234a, 234b to bring them from the protruding locking position (figure 26) to the retracted release position (figure 27) and, vice versa, from the retracted release position to the protruding locking position.

[0128] The drive axis Xa is preferably perpendicular to the translation axis Xt of the half-pins 234a, 234b.

[0129] Between the slider 42 and the first half-pin 234a there is interposed a first transmission element 250a made in piece with the slider 42 engaging in a first open channel 254a of the first half-pin 234a. The first transmission element 250a preferably comprises a parallelepiped shape and the channel 254a preferably consists of a respective channel of a corresponding conjugate geometry. The first transmission element 250a and the first open channel 254a extend longitudinally and transversely to the translation axis Xt of the first half-pin 234a and to the drive axis Xa of the slider 42.

[0130] Similarly, between the slider 42 and the second half-pin 234b there is interposed a second transmission element 250b made in piece with the slider 42 engaging in a second open channel 254b of the second half-pin 234b. The second transmission element 250b preferably comprises a parallelepiped shape and the channel 254b preferably consists of a respective channel of a corresponding conjugate geometry. The second transmission element 250b and the second open channel 254b extend longitudinally and transversely to the translation axis Xt of the second half-pin 234b and to the drive axis Xa of the slider 42.

[0131] The mechanism 40 is then preferably provided with elastic means 70 which act on the slider 42 to push it and hold it in the locking position.

[0132] The elastic means 70 preferably comprise a helical spring 72 connected to the main body 32 of the first part 30 by means of a grub screw 74 and received in a seat 47 of the slider 42.

[0133] The actuator 44 is moved by the second part 60 and co-operates with the slider 42 to convert the rotational movement of the second part 60 into a movement of the slider 42 along the drive direction Xa. In particular, the actuator 44 is moved by the rotation of the sides 62a, 62b through the rotation pin 64. The actuator 44 comprises an eccentric element, or cam, mounted integrally to the rotation pin 64: the actuator 44 preferably comprises a through hole of appropriate shape to couple to the asymmetrical geometry of the pin 64.

[0134] The action of the actuator/cam 44 to bring the half-pins 234a, 234b into the retracted release and protruding connecting position takes place according to the previously described methods which are fully referred to herein.

[0135] According to this embodiment, moreover, the retracted position of the half-pins 234a, 234b takes place with a rotation of the second part 60 with respect to the first part 30 by an angle A equal to about 90°, instead of by 70° of the previous embodiment illustrated in figures 1 to 12.

[0136] The transmission elements 250a, 250b perform the same technical function described for the components of the first embodiment (cylinders 50a, 50b), namely to transmit a displacement action to the half-pins 234a, 234b to switch them between the respective retracted release and protruding connecting configurations, following the movement of the slider 42 induced by the rotation of the actuator 44. Advantageously, in accordance with this variant, the slider 42 and the relative transmission elements 250a, 250b obtained integrally with it, are, in assembled condition, overlapping and housed within the respective channels 254a, 254b of the half-pins 234a, 234b. This configuration of spatial overlap allows an optimization of the overall dimensions of the mechanism 40, guaranteeing a reduction in masses and greater application versatility, in particular in structural contexts characterized by reduced volumes.

[0137] According to this embodiment, the security system 290 comprises a contrasting element 292 positionable in a locking position (Figures 28 and 28A) in which it prevents the movement of the slider 42, along the drive axis Xa, and in an unlocking position (Figures 29 and 29A) in which it does not interfere with the slider 42.

[0138] The contrasting element 292 preferably comprises a head portion 292a operable by pushing downwards by the user and a stem 292b defining the contrasting part for the slider 42.

[0139] The contrasting element 292 is preferably associated with elastic means 294 preferably comprising a helical spring, which act on the contrasting element 292 to push it and hold it in the upward locking position.

[0140] The helical spring 294 is mounted on the main body 32 within a dedicated seat 296.

[0141] Also according to this embodiment, the security system 290 is always active and the contrasting element 292 is held in the locking position with the two parts 30, 60 in the first configuration.

[0142] To allow the release operation by rotation of the second part 60 with respect to the first part 30, as described above, the user is first obliged to manually act by pushing on the head portion 292a to move the stem 292b downwards and bring the contrasting element 292 into the unlocking position (Figures 29 and 29A) and then proceed with the release by rotating the second part 60, a situation shown in figure 30.

[0143] When, conversely, the two parts 30, 60 are brought from the second release configuration to the first locking configuration the contrasting element 292 at the end of the rotation of the second part 60 is automatically brought into the locking position by effect of the elastic means 294.

[0144] It has thus been demonstrated by means of the above detailed description of preferred embodiments how the present invention allows to obtain the desired results while minimizing the drawbacks encountered in the prior art. It should be further specified that, although the present invention has been elucidated by the foregoing detailed description of its embodiments shown in the drawing tables, the present invention is not limited to the embodiments described above and shown in the drawing tables. On the contrary, all variations and modifications of the described and depicted embodiments that will appear clear and obvious to those skilled in the art are within the scope of the present invention.

[0145] The scope of the present invention is therefore defined by the claims.

Claims

1. Device (10; 210; 10'; 10"; 10‴) for connecting a first element (C; P; DC; M1; M2; M3; M4; MB; 10; 210; 10'; 10"; 10‴) to a second element (C; P; DC; M1; M2; M3; M4; MB; 10; 210; 10'; 10"; 10"') of a watch (O), said connecting device (10; 210; 10'; 10"; 10"') comprising a first part (30) connectable to said first element (C; P; DC; M1; M2; M3; M4; MB; 10; 210; 10'; 10"; 10‴) and a second part (60) connectable to said second element (C; P; DC; M1; M2; M3; M4; MB; 10; 210; 10'; 10"; 10"') and rotatably coupled to said first part (30) about a coupling axis (Xc), said first part (30) comprising a main body (32) and two half-pins (34a, 34b; 234a, 234b) adapted to assume a position protruding from said main body (32) wherein said two half-pins (34a, 34b; 234a, 234b) are insertable in respective two seats of said first element (C; P; DC; M1; M2; M3; M4; MB; 10; 210; 10'; 10"; 10‴) for connecting said first part (30) to said first element (C; P; DC; M1; M2; M3; M4; MB; 10; 210; 10'; 10"; 10‴), said two half-pins (34a, 34b; 234a, 234b) being adapted to assume a retracted position adapted to allow at least the release of said first part from said first element (C; P; DC; M1; M2; M3; M4; MB; 10; 210; 10'; 10"; 10‴) said connecting device (10; 210; 10'; 10"; 10‴) being characterised in that it comprises a mechanism (40) adapted to position said two half-pins (34a, 34b; 234a, 234b) in said protruding position for connecting said first part (30) to said first element (C; P; DC; M1; M2; M3; M4; MB; 10; 210; 10'; 10"; 10"') and adapted to bring said two half-pins (34a, 34b; 234a, 234b) from said protruding connecting position to said retracted position, said mechanism (40) being configured to bring said two half-pins (34a, 34b; 234a, 234b) into said retracted position by rotating said second part (60) with respect to said first part (30) around said coupling axis (Xc) by an angle greater than a predetermined threshold angle (A) starting from a first configuration wherein said two parts (30, 60) connect said second element (C; P; DC; M1; M2; M3; M4; MB; 10; 210; 10'; 10"; 10‴) to said first element (C; P; DC; M1; M2; M3; M4; MB; 10; 210; 10'; 10"; 10‴) to a second configuration wherein said first part (30) is releasable from said first element (C; P; DC; M1; M2; M3; M4; MB; 10; 210; 10'; 10"; 10‴).

2. Device (10; 210; 10'; 10"; 10‴) according to claim 1, characterised in that said predetermined threshold angle (A) is at least equal to 30°, preferably equal to 70°.

3. Device (10; 210; 10'; 10"; 10"') according to claim 1 or 2, characterised in that said mechanism (40) comprises:

- a slider (42) movable between a locking position and an unlocking position along a drive axis (Xa), said slider (42) interacting with said two half-pins (34a, 34b; 234a, 234b) to move them from said protruding locking position to said retracted release position and, vice versa, from said retracted release position to said protruding locking position;

- an actuator (44) moved by said second part (60) and co-operating with said slider (42), said actuator (44) being adapted to convert the rotational movement of said second part (60) into a movement of said slider (42) along said drive axis (Xa).

4. Device (10; 10'; 10"; 10‴) according to claim 3, characterised in that it comprises a transmission element (50a; 50b) engaging in a channel (52a; 52b) of said slider (42) and in a channel (54a; 54b) of a first half-pin (34a, 34b) of said two half-pins (34a, 34b), said channels (52a, 54a; 52b, 54b) extending longitudinally and transversally with respect to a translation axis (Xt) of said first half-pin (34a, 34b) and longitudinally and transversally with respect to said drive axis (Xa) of said slider (42).

5. Device (210; 10'; 10"; 10‴) according to claim 3, characterised in that it comprises a transmission element (250a, 250b) made in piece with said slider (42), said transmission element (250a, 250b) engaging in an open channel (254a; 254b) of a first half-pin (234a, 234b) of said two half-pins (234a, 234b), said transmission element (250a, 250b) and said channel (254a; 254b) extending longitudinally and transversely with respect to a translation axis (Xt) of said first half-pin (234a, 234b) and longitudinally and transversely with respect to said drive axis (Xa) of said slider (42).

6. Device (10; 210; 10'; 10"; 10‴) according to any one of claims 3 to 5, characterised in that said actuator (44) comprises an eccentric element.

7. Device (10; 210; 10'; 10"; 10‴) according to any one of claims 3 to 6, characterised in that said mechanism (40) comprises elastic means (70) adapted to push said slider (42) towards said locking position.

8. Device (10; 210; 10'; 10"; 10‴) according to any one of claims 3 to 7, characterised in that said coupling axis (Xc) is perpendicular to said drive axis (Xa) of said slider (42).

9. Device (10; 210; 10'; 10"; 10‴) according to any one of the preceding claims, characterised in that said two half-pins (34a, 34b; 234a, 234b) move between said protruding locking position and said retracted release position along a translation axis (Xt).

10. Device (10; 210; 10'; 10"; 10‴) according to claim 9, characterised in that said translation axis (Xt) of said two half-pins (34a, 34b; 234a, 234b) is parallel to said coupling axis (Xc).

11. Device (10; 210; 10'; 10"; 10‴) according to claim 9 or 10, characterised in that said translation axis (Xt) of said two half-pins (34a, 34b; 234a, 234b) is perpendicular to said drive axis (Xa) of said slider (42).

12. Device (10; 210; 10'; 10"; 10‴) according to any one of the preceding claims, characterised in that it comprises a security system (90; 190; 290) activatable, or deactivatable, by the user to inhibit, or allow, rotation of said second part (60) with respect to said first part (30).

13. Device (10; 210; 10'; 10"; 10‴) according to claim 12 when dependent on claim 3, characterised in that said security system (90; 190; 290) comprises a contrasting element (92; 192; 292) positionable in a locking position in which it prevents the movement of said slider (42) and in an unlocking position in which it does not interfere with said slider (42).

14. Device (10; 210; 10'; 10"; 10‴) according to claim 13, characterised in that said security system (90; 190; 290) comprises elastic means (94; 294) adapted to push said contrasting element (92; 192; 292) towards said locking position.

15. Device (10; 210; 10'; 10"; 10"') according to any one of the preceding claims, characterised in that said first element (C; P; DC; M1; M2; M3; M4; MB; 10; 210; 10'; 10"; 10‴) comprises the case (C) of said watch (O) and said second element (C; P; DC; M1; M2; M3; M4; MB; 10; 210; 10'; 10"; 10‴) comprises an end (M1; M2; M3; M4) of a bracelet (M) of said watch (O) or said first element (C; P; DC; M1; M2; M3; M4; MB; 10; 210; 10'; 10"; 10"') comprises a closing device (DC) of a bracelet (M) of said watch (O) and said second element (C; P; DC; M1; M2; M3; M4; MB; 10; 210; 10'; 10"; 10‴) comprises an end (MB) of said bracelet (M) or said first element (C; P; DC; M1; M2; M3; M4; MB; 10; 210; 10'; 10"; 10"') comprises a first portion (M3; M4) of a bracelet (M) of said watch (O) and said second element (C; P; DC; M1; M2; M3; M4; MB; 10; 210; 10'; 10"; 10‴) comprises a second portion (M3; M4) of said bracelet (M) of said watch (O) or said first element (C; P; DC; M1; M2; M3; M4; MB; 10; 210; 10'; 10"; 10"') and/or said second element (C; P; DC; M1; M2; M3; M4; MB; 10; 210; 10'; 10"; 10"') comprises another connecting device (10; 210; 10'; 10"; 10‴).

16. Watch (O) comprising a first element (C; P; DC; M1; M2; M3; M4; MB; 10; 210; 10'; 10"; 10‴) a second element (C; P; DC; M1; M2; M3; M4; MB; 10; 210; 10'; 10"; 10"') and a device (10; 210; 10'; 10"; 10"') for connecting said first element (C; P; DC; M1; M2; M3; M4; MB; 10; 210; 10'; 10"; 10"') to said second element (C; P; DC; M1; M2; M3; M4; MB; 10; 210; 10'; 10"; 10‴), characterised in that said connecting device (10; 210; 10'; 10"; 10‴) is made according to any one of the preceding claims.

17. Watch (O) according to claim 16, characterised in that said first element (C; P; DC; M1; M2; M3; M4; MB; 10; 210; 10'; 10"; 10"') comprises the case (C) of said watch (O) and said second element (C; P; DC; M1; M2; M3; M4; MB; 10; 210; 10'; 10"; 10"') comprises an end (M1; M2; M3; M4) of a bracelet (M) of said watch (O) or said first element (C; P; DC; M1; M2; M3; M4; MB; 10; 210; 10'; 10"; 10‴) comprises a closing device (DC) of a bracelet (M) of said watch (O) and said second element (C; P; DC; M1; M2; M3; M4; MB; 10; 210; 10'; 10"; 10"') comprises an end (MB) of said bracelet (M) or said first element (C; P; DC; M1; M2; M3; M4; MB; 10; 210; 10'; 10"; 10"') comprises a first portion (M3; M4) of a bracelet (M) of said watch (O) and said second element (C; P; DC; M1; M2; M3; M4; MB; 10; 210; 10'; 10"; 10"') comprises a second portion (M3; M4) of said bracelet (M) of said watch (O) or said first element (C; P; DC; M1; M2; M3; M4; MB; 10; 210; 10'; 10"; 10"') and/or said second element (C; P; DC; M1; M2; M3; M4; MB; 10; 210; 10'; 10"; 10‴) comprises another connecting device (10; 210; 10'; 10"; 10‴).

Drawing