Operating unit for the setting devices of a watch and watches incorporating such a unit

An operating unit (13) according to the preceding claim, the operating unit being realised as a commutator (13) adapted to assume two positions (13a, 13b), the part of the commutator (13) protruding from the housing (14) of the watch indicating the chosen function of the auxiliary setting device(s) (12).

An operating unit (13) according to the preceding claim, the commutator (13) being mounted laterally on the housing (14) of the watch (1) such that it is adapted to pivot about an axis (133) located approximately in the middle of the commutator, an adjustable stopper screw (132) being situated in a corresponding bore of the housing (14) such as to guide the commutator (13) during its commutation between its two positions, and a contact pin (131) being adapted to co-operate in a water-tight manner with the components situated at the inside of the housing (14) due to a corresponding bore penetrating the housing of the watch.

An operating unit (13) according to one of the preceding claims, the co-operation between the operating unit (13) and the components of the watch (1) situated inside the housing being based on a lever mechanism (105) and on a blocking mechanism (106).

An operating unit (13) according to the previous claim, said lever mechanism (105) comprising a contact pin (131) penetrating into the housing (14), which is, if the operating unit (13) is set into its first position (13a), pushed through a corresponding bore into the inside, resulting in that a lever slide (84) situated at the end of the contact pin transmits this motion to a lever rack (85) which is situated on the other end of the lever slide and which is mounted pivotably at its end and the sector of which is engaged with a sector of a pivotable rack wheel (86), such that the rotational motion transmitted by the lever rack (85) is transmitted by a second sector of the rack wheel (86) to a first intermediate rack wheel (87) and subsequently to a second intermediate rack wheel (88) which is engaged with a cam wheel (89) carrying a cam (90).

A watch with a main setting device (11) comprising at least two engagement positions (11a-c), namely one rest position (11a) and at least one pulled position (11b, 11c), and with at least one auxiliary setting device (12), that watch comprising an operating unit (13) according to one of the preceding claims.

A watch according to the preceding claim, the watch being in particular a world time watch with an analogue main time display (4) and at least one analogue auxiliary time display (5) and comprising for each one of these auxiliary time displays (5) an auxiliary setting device (12) and an analogue indication (15, 18) of a world location (6) corresponding to the indicated time zone, said operating unit (13) allowing to choose between a first function of the auxiliary setting devices (12), namely the time setting of the auxiliary time displays (5) independently of all the other displays, and a second function of these auxiliary setting devices (12), namely the setting of the indicator (15) of a corresponding world location (6).

A watch according to the preceding claim, said blocking mechanism (106) comprising a cam (90) carried by a cam wheel (89) which is, if the operating unit (13) is set into its first position (13a), exerting due to a rotational motion transmitted onto it a force on a respective blocking lever (91) of each auxiliary time display (5), said force exceeding the force exerted by the return spring (92) of the blocking lever (91) on the latter, such that this blocking lever (91) is urged laterally against a corresponding world location indication wheel (80) of the auxiliary time display (5) and prevents its rotation, whereas, if the operating unit (13) is set into its second position (13b), the return spring (92) releases the blocking lever (91) from the world location indication wheel (80) and thus the world location hand (1 5) available in each auxiliary time display (5) and placed on the world location indication wheel (80) may be set.

A watch according to the preceding claim, each pusher (12) comprising two positions (12a, 12b) and a pressure limit mechanism comprising a spring (48) and a corresponding lever (47), such that, after release of a pusher (12) from its depressed position (12b), it automatically returns into its initial position (12a) and that the application of a minimal pressure is necessary for the operation of the pusher.

A watch according to the preceding claim, the setting of the hour hand (22) of an auxiliary time display (5) being achieved by means of a pusher slide (43) movable with the auxiliary setting device (12), the end of that pusher slide cooperating with one end of a lever (47) in such a manner, that a connecting element (74) mounted rotatably at its other end is moved such as to rotate a ring (72) being placed coaxially with respect to a first click wheel (70) by a certain angle (β1) about its axis, such that, due to the fact that the ring (72) is provided with ring pawls (73) which can engage with a second click wheel (71), the latter performs a rotation corresponding to the one of the ring (72), and that the first click wheel (70) which is fixed to the second click wheel (71) engages by its teeth with pawls (68) which are urged laterally against it due to the action of springs (69), such that a correction mechanism (107) effectuates the displacement of the hour hand (22) of the corresponding auxiliary time display (5) by one hour.

A watch according to the preceding claim, the correction mechanism (107) comprising a correction wheel (67) which performs a rotation corresponding to the one of the first click wheel (70) due to the engagement of the first click wheel (70) with said pawls (68) mounted movably on the correction wheel (67), the correction wheel (67) acting on a correction change wheel (66) and an hour change wheel (60) which in turn is engaged with an hour indication wheel (59), and an hour wheel (58) of an auxiliary time display (5) being force coupled by means of a coupling of the hour indication (109) with the hour indication wheel (59) carrying the hour hand (22) of the auxiliary time display (5), such that by exceeding the force exerted by a spring (65) on a pawl (64) of this coupling (109) this pawl (64) engages with a subsequent recess of a corresponding star (63) carrying twelve or twenty four teeth and thus produces a relative rotation between the hour wheel (58) of an auxiliary time display (5) and the corresponding hour indication wheel (59) by an angle (β2) corresponding to an hour step, each operation of an auxiliary setting device (12) of an auxiliary time display (5) thus advancing the corresponding hour hand (22) by one hour.

A watch according to the preceding claim, the setting the world location hand (15) of an auxiliary time display (5) being achieved by rotating each time in addition to a correction wheel (67) a friction wheel (76) being placed concentrically with respect to the first one by means of a friction spring (77), that friction wheel (76) producing in each auxiliary time display (5) via respectively a first intermediate world location wheel (78) and a second intermediate world location wheel (79) which is engaged with the corresponding world location indication wheel (80) a rotation of the world location hand (15) given that this world location indication wheel (80) is equipped with a star-pawl-coupling (110) analogous to the coupling of the hour indication (109), that star-pawl-coupling comprising a pawl (82), a spring (83) and a star (81) with twenty four teeth, thus allowing the setting of the world location hand (15) by {fraction (1/24)}th-steps of a full rotation.

A watch according to the preceding claim, the main setting device being realised as a crown (11), the non-pulled rest position (11a) of which being used, in the case of a mechanical clockwork-movement, for winding up the watch, its first pulled position (11b) allowing for the correction of the hour indication and of a date indicator (7) of the main time display (4) by hour steps in both directions of rotation, an hour hand (19) of the main time display (4) performing a full rotation in twelve steps independently of the minute hand (20) of the main time display (4) and a forward-backward movement of the hour hand (19) of the main time display (4) around the 12-o'clock position with the crown (11 ) being in said first pulled position resulting in an incremental switching of the date indicator (7), and its second pulled position (11c) allowing the setting of the main time display (4), a rotation of the crown (11) in this position resulting, again in both directions of rotation, in a synchronised movement of the hour hands (19, 22) and of the minute hands (20, 23) of all time displays (4, 5).

A watch according to the preceding claim, in which pulling the crown (11) operates a blocking mechanism (106), which allows to prevent the displacement of a world location hand (15) placed on a world location indication wheel (80) of each auxiliary time display (5) in a pulled position (11b, 11c) of the crown.

A watch according to the preceding claim, said blocking mechanism (106) comprising a stem slide (41) and a stem (42) being operated by traction applied by the crown, such that an angled lever (33) mounted pivotably about an axis situated approximately in its middle is moved and acts on a control lever (32), which produces a rotation about a certain angle of a rack (97) engaged with a cam wheel (89), resulting in that a second cam (98) laterally urges a respective blocking lever (91) of an auxiliary time display (5) against the world location indication wheel (80) corresponding to that auxiliary time display, thus preventing any displacement of the world location hand (15) placed on the world location indication wheel (80) in the first and second pulled positions (11b, 11c) of the crown (11), whereas the world location indication wheel (80) and thus the world location hand (15) can be moved due to the action of a return spring (92) on the blocking lever (91) in the rest position (11a) of the crown (11).

A watch according to the preceding claim, the main component of the control mechanism (30) being a control ring (31) which is placed concentrically with respect to the centre (27) of the watch (1).

A watch according to the preceding claim, the control ring (31) co-operating via a control lever (32) and an angled lever (33) with a stem slide (41) and a stem (42) being part of the main setting device (11), that ring comprising on its outer edge lateral recesses (34) facing the auxiliary setting devices (12), such that, depending on the engagement position of the main setting device (11), the ring (31) with its recesses (34) may assume due to the action of the angled lever (33) at least two different radial positions (31a, 31b), the first position (31a) corresponding to the rest position (11a) and the second position (31b) corresponding to the pulled positions (11b, 11c) of the main setting device (11).

A watch according to the preceding claim, a pin (44) being fixed to a pusher slide (43) of each auxiliary setting device (12), said slide being capable of assuming two positions (43a, 43b), being adapted to be shifted into the facing recess (34) of the ring (31) by operation of the auxiliary setting device (12) if the main setting device (11) is in its rest position (11a) and thus the recesses (34) are situated opposite the pins (44), whereas this is not the case in the pulled positions (11b, 11c) of the main setting device (11), such that in these positions the auxiliary setting devices (12) are blocked with respect to their operation due to the stroking of the pins (44) against the outer edge of the ring (31) and that, during operation of an auxiliary setting device (12) if the main setting device (11) is in its rest position (11a), the corresponding pin (44) is moved into the recess (34) of the ring (31) facing it and thus that latter one cannot be rotated during the actuation of the auxiliary setting device (12), which results in the blocking of the main setting device (11) with regard to the execution of one of its functions in a pulled position (11b, 11c).