CH702803B1 - correction mechanism with at least two other information displayed as the current time, to watch movement. - Google Patents

Abstract

The invention relates to a mechanism for correcting at least first and second displayed information, for watch movement (1), comprising a crown rod (9) as well as correction levers (38 to 41) arranged for incrementing organs. counting (28) of this information. The correction mechanism comprises a control lever (30) comprising a base (31), pivotally mounted along a first axis of rotation X1 and carrying an arm (32) pivoting along a second axis of rotation X2 and capable of taking a plurality of angular positions , with reference to the base, associated with the various levers of correction. The correction mechanism comprises a pusher (11) arranged to pivot the base (31) so that the arm (32) actuates the correction lever (38 to 41) opposite which it is. The invention further relates to a watch movement comprising a correction mechanism of at least first and second displayed information.

Description

Technical area

The present invention relates to a correction mechanism of at least first and second displayed information other than the current time, for watch movement, comprising a rotatable stem-crown and at least first and second correction levers arranged to increment counting members of the first and second information in response to a predefined action of a user.

State of the art

Many devices of this type are already known in the state of the art, in relation to clock movements of the type to complications.

By way of example, patent application EP 1 580 626 A1 mentions, in its part relating to the state of the art, the existence of complicated watches comprising such a large number of functions that it It is not possible to correct them all by means of a single crown. Thus, specific pushers, or correctors, housed in the middle of the watch, have been developed to allow the correction of one and the other of its functions. These pushers usually require the use of a pen or a tool to be operated which makes their handling difficult. In addition, they affect the overall appearance of the corresponding watch because they are visible on the side of the middle part. To remedy these problems, the Applicant of the above application proposes a different type of pusher, in particular that can be operated without tools and which is preferably arranged under a horn of the watch case to be invisible when the watch is worn.

However, it should be noted that the proposed solution does not solve the additional problem residing in the choice of push to operate by the user to correct a particular function.

Indeed, if we consider for example a watch arranged to display a complete calendar or a perpetual calendar, it comprises at least three or four counting bodies corresponding information (namely the date, the day of the week, the month, possibly the week, the year or even the phase of the Moon), so many pushers to correct the value of these counting devices. Thus, the user must almost always use the manual of his watch when it must make a correction of the information displayed, which is impractical and may retain some potential users of such watches to acquire.

Disclosure of the invention

A main object of the present invention is to overcome the disadvantages of correction mechanisms known from the prior art, by providing a simplified and intuitive use correction mechanism.

For this purpose, the present invention relates more particularly to a correction mechanism of the type mentioned above, characterized in that it further comprises a control lever comprising a base, intended to be pivotally mounted along a first axis rotation X1 with respect to the watch movement and, carrying an arm pivotally mounted along a second axis of rotation X2. The arm is arranged in such a way that it is capable of taking at least first and second angular positions, with reference to the base, in response to a rotation of the stem-crown and in such a way that it is located in first and second correction levers, respectively, in the first and second positions. The correction mechanism further comprises a pusher arranged to pivot the base in response to an action of a user such that the arm actuates one or the other correction levers. The pusher may possibly be coaxial with the stem-crown.

With these features, the correction mechanism according to the invention has a significantly improved ergonomics of use compared to the mechanisms of the prior art. Indeed, only two control elements, possibly combined, are necessary to perform the correction of all the functions that includes the corresponding watch, the stem-crown to select the information to be corrected and the pusher to perform the correction as than once the desired function has been selected.

Preferably, the correction mechanism comprises a cam having a periphery of variable radius and whose angular position can be controlled by rotation of the crown rod, the arm being arranged in such a way that its angular position is a function of that of the cam. In particular, the arm may advantageously be held directly abutting against the periphery of the cam.

According to a preferred embodiment, the mechanism comprises a gear train arranged to establish a kinematic connection between the crown rod and the cam, the latter being secured to a toothed wheel. In addition, an indexing board may also be provided by being integral with the toothed wheel and arranged to cooperate with a hammer to define predefined angular positions of the cam.

Thanks to these characteristics, the user can not only very simply control the rotations of the cam, and thus perform the choice of the function to be corrected, but also easily find the stable angular positions of the cam corresponding to the correct positioning of the cam. arm to act on the levers correction.

Furthermore, the correction mechanism according to the present invention advantageously comprises a drive member of an indicator member arranged to indicate that information which can be corrected at a given time by pressing the pusher, the body of drive having a kinematic connection with the gear train.

According to a preferred embodiment, the drive member is connected to the gear train by means of a wheel carrying an additional cam whose periphery has a variable radius and arranged to control the angular position d a rake bearing a gear engaged with a pinion, the latter meshing at least indirectly with the drive member. In this case, the gear train preferably comprises a gear arranged in such a way that it allows the establishment of the kinematic connection between the cam and the stem-crown in a first direction of rotation of the latter and that it interrupts in the opposite direction of rotation.

With this last feature, the additional cam can not be driven in the opposite direction of its normal operating direction, to prevent it from being damaged.

According to a preferred embodiment, the present invention relates to a mechanism of the type which has just been described when it is arranged to correct information relating to the date and / or the day of the week and / or the week. and / or the month and / or year and / or phase of the Moon.

The invention also relates to a watch movement comprising at least first and second counting members of first and second information other than the current time and a correction mechanism of the type described above.

Brief description of the drawings

Other features and advantages of the present invention will appear more clearly on reading the detailed description of a preferred embodiment which follows, with reference to the accompanying drawings given by way of non-limiting examples and in which :

[0018] - FIG. 1 shows a simplified perspective view of a watch movement surmounted by a dial according to a preferred embodiment of the present invention;

[0019] - FIG. 2 shows a simplified top view of the watch movement of FIG. 1, without the dial and in a first configuration;

[0020] - FIG. 3 shows a top view in transparency and simplified watch movement of FIG. 2 in a second configuration;

- fig. 4 shows a top view in transparency and simplified watch movement of FIG. 2 in a third configuration;

- fig. 5a is a perspective view of a first constructional detail of the correction mechanism according to a preferred embodiment of the present invention, and

[0023] - FIG. 5b is a top view in transparency of a second constructional detail of the correction mechanism according to a preferred embodiment of the present invention.

Mode (s) of realization of the invention

FIG. 1 represents a simplified perspective view of a watch movement 1 surmounted by a dial 2 according to a preferred embodiment of the present invention.

By way of non-limiting indication, the watch movement is arranged to control display members (not shown) of the date, the day of the week, the week and the month, in addition to the display members of the invention. current time.

The dial 2 comprises for this purpose five wickets 3 (week), 4 (month), 5 (day), 6 and 7 (large date) through which these display members are intended to be visible, as well as a conventional central hole 8 for the passage of the switch for the display of the current time.

The watch movement comprises a crown rod 9 having, at its outer end, a ring 10 and a pusher 11 arranged in the ring being coaxial thereto.

As will be apparent from the following description, the crown rod 9 not only allows to manually raise a mainspring and perform a time setting of the watch movement, conventionally, but also to correct the different information to be displayed in windows 3 to 7.

More particularly, it appears from FIG. 1 that the correction mechanism according to the invention is also arranged to control the movements of an indication member 12 of the function to be corrected, from the actions of a user on the crown rod, the cooperating member 12 with inscriptions 13 of the dial corresponding to the various functions that can be corrected.

FIG. 2 represents, in a simplified top view, part of the watch movement 1. It will be noted that, in general, the conventional components of the watch movement which do not contribute directly to the implementation of the present invention have not been represented in order to improve the readability of the figures.

The watch movement 1 comprises a base gauge comprising a frame whose plate 20 is partially illustrated in FIG. 2, which carries an additional display module (not shown) in a conventional manner.

Typically, the crown rod 9 has a first axial position, neutral, in which its rotation causes the load of a mainspring (not shown). In fig. 2, the crown rod 9 is shown in a first drawn position, setting time.

For this purpose, the stem-crown has a square section 22 cooperating with a sliding pinion (not shown) arranged to mesh with a first return 23 following the combined actions of a pull and a pull lever (no shown) when the crown rod is pulled from its neutral position to its first drawn position in a conventional manner.

In the position illustrated in FIG. 2, the first return is arranged in engagement with a timer wheel 24, itself engaged with a roadway 25 and whose gear meshes with an hour wheel 26.

Furthermore, the plate 20 also carries a counting member 28 for displaying the day of the week, and a correction gear train 29, a detailed description of which follows, in connection with the following figures.

A control lever 30 is also arranged on the plate 20, so as to cooperate with the crown rod 9, as will be explained later. The control lever 30 comprises a base 31 rotatably mounted along an axis of rotation X1 on the plate 20. The base carries an arm 32 mounted thereon so as to be pivotable along a second axis of rotation X2. The base 31 also carries a straight spring 33 arranged to act on a spout 34, integral with the arm 32, and tend to rotate the arm in the anti-clockwise direction of rotation in FIG. 2.

A right spring 36 is integral with the plate 20 being arranged to act on a finger 37, integral with the base 31, and tend to rotate the latter in the anti-clockwise direction of rotation in FIG. 2.

There is further shown in FIG. 2, correction levers for the indication of week 38, day 39, date 40 and month 41, as well as a lever 42 for correction of the week controlled by the lever 38, these elements being supported by the additional module.

FIG. 3 shows a top view in transparency and simplified watch movement of FIG. 2 in a second configuration, more precisely, while the crown rod 9 is disposed in a second drawn position.

It appears from FIG. 3 that the first reference 23 is carried by a rocker 44 which pivots during the passage of the stem-crown from its first to its second pulled position (by a conventional cooperation with the pull tab). The pivoting of the rocker 44 causes the disengagement of the first return 23 from the timer wheel 24.

The first return 23 is then engaged with a second reference 46 defining the input of the correction gear train 29.

By way of non-limiting indication, the second reference 46 meshes with a third reference 47, itself engaged with a fourth reference 48, itself engaged with a fifth reference 49.

The fifth return 49 is integral with a function selection cam 50 and an angular indexing plate 51, as is more clearly apparent from FIG. 5a which represents the isolated corresponding mobile, in perspective.

The function selection cam 50 has a periphery of complex shape and variable radius. More specifically, the periphery of the cam 50 has five apices 52, 53, 54, 55 and 56 respectively associated with a neutral position of the correction mechanism and correction positions of the week, month, day and date. .

The angular indexing plate 51 has substantially the shape of a pentagon whose sides are substantially concave.

The detailed operation of this mobile will now be exposed by returning to FIG. 3.

When the crown rod 9 is rotated by a user, in the second position drawn from FIG. 3, the cam 50 is also rotated, via the gear train 29.

A hammer 58 is pivotally mounted on the axis of rotation of the third return 47. The hammer has a groove 59 for guiding it in rotation, in cooperation with the shaft bearing the fourth reference 48. Furthermore, the hammer comprises an arm 60 arranged to cooperate with the angular indexing plate 51 integral with the cam 50. A curved spring 62 is fixed on the plate 20 so as to act on a finger 63 carried by the hammer 58 to tend to maintain its arm 60 bearing against the angular indexing plate 51. This system makes it possible to define discrete positions of service of the function selection cam 50.

At the same time, the arm 32 of the control lever 30 is held in abutment against the periphery of the function selection cam 50, under the effect of the action of the right spring 33.

Thus, when the crown rod 9 rotates, the arm 32 of the control lever 30 pivots to position itself opposite the various correction levers 38 to 41. When the arm 32 is disposed in abutment against the first vertex 52 of the cam 50, it is arranged opposite any of the correction levers, this position is therefore a neutral position in which no information can be corrected.

It is noted in FIG. 3 that the arm 32 is disposed in abutment against the fourth vertex 55 of the cam 50, that is to say against the peak associated with the correction of the day. Indeed, in this configuration, the free end of the arm 32 is located opposite the lever 39 day correction.

Now that the mode of selection of the function to be corrected has been described, the implementation of the correction as such can be explained in relation to FIG. 4 which shows a view similar to that of FIG. 3, in which the crown rod 9 has a third configuration.

It appears from FIG. 4 (and in Fig. 3) that the crown rod 9 comprises a pusher 11 integrated in the ring 10, according to a well known construction of the prior art, which will therefore not be explained in detail in the present description.

The pusher 11 is axially integral with a control sleeve 66 arranged opposite a control pin 67 carried by the control lever 30.

Therefore, when the pusher 11 is actuated, as shown in FIG. 4, the control sleeve 66 acts on the control pin 67 to cause the pivoting of the control lever 30 about the axis X1.

This movement causes a complex movement of the arm 32 combining a circular translation, due to the movement of the control lever 30, and a rotation along the axis X2 due to the action of the right spring 33 tending to maintain the arm 32 resting against the function selection cam 50.

This complex movement of the arm 32 causes the latter, by its free end, to act on the correction lever days 39 to drive the translation. The translation of the correction lever 39 is notably guided by the cooperation between a groove 68 formed in the lever with a fixed guide pin 69 carried by the plate 20. The correction lever 39 carries a spout 70 acting directly on the count 28 days to steer it and increment the day's display. Each new pressure on the pusher 11, once it has been released, has the effect of incrementing the display of the days, in the configuration of FIG. 4 (or in Fig. 3).

It is well understood figs. 3 and 4 that, following the rotational movements of the ring 10, the arm 32 will have different angular positions and may be opposite one or other of the correction levers 38 to 41 to correct one or the other corresponding information by pressing (s) on the pusher 11.

Thus, the correction mechanism according to the present invention provides a means of correcting a plurality of information other than the time being simple and practical to use, without impairing the aesthetics of the corresponding watch since it uses only a crown with conventional integrated push.

In addition, as mentioned above, the correction mechanism according to the present preferred embodiment comprises a member 12 for indicating the function to be corrected, further facilitating the correction operations.

To control the movements of this member 12 opposite the indications 13 carried by the dial, the correction mechanism comprises a sixth referral 72 arranged in engagement with the fifth referral 49, and a seventh referral 73 arranged in engagement with the sixth referral.

As is more clearly apparent from FIG. 5b, the seventh return 73 is integral with a function indication cam 74. The latter has a periphery substantially shaped irregular snail having five bearing zones 75, 76, 77, 78 and 79, respectively associated with the Neutral position of the correction mechanism and correction positions of the week, month, day and date.

Returning to FIG. 4, it appears that the periphery of the function indication cam 74 cooperates with a lever 80, via a finger 82 carried by the lever. The finger 82 is held in abutment against the cam under the effect of the action of a spring 83 fixed on the turntable of the watch movement and acting on the lever.

The lever 80 carries a rake 84 arranged in engagement with a pinion 85 of an eighth reference 86 whose wheel 87 is engaged with a ninth referral 88 bearing the indicating member 12 of the function to be corrected.

The bearing zones 75 to 79 of the function indication cam 74 are indexed to the discrete angular positions of the function selection cam 50, defined by the cooperation of the indexing plate 51 and the hammer. 58.

Thus, each time the function selection cam 50 pivots, in response to a rotation of the ring gear 10, the function indication cam 74 also pivots to control a corresponding movement of the body member 12. indication of the function to be corrected.

With these characteristics, the correction of the information displayed is greatly simplified with respect to that implemented by means of correction mechanisms of the prior art. It should be noted, as an indication, that the angular position of the indicator member 12 is fanciful in FIG. 3, while it corresponds to the indications 13 of FIG. 1 in figs. 2 and 4.

In general, it is preferable to avoid that the cam 74 rotates in the anti-clockwise rotation direction in FIG. 4 to avoid damaging it as it moves from its largest radius to its weakest radius. In this case, it can advantageously be provided that one of the gear wheels 29, preferably the second gear 46, has a movable shaft capable of moving in a groove (not visible) formed for this purpose in the plate, in known manner, especially in manual winding trains. Thus, in the case of such a security applied to the second return 46, it can be provided that a rotation of the crown in the counterclockwise direction (looking at the ring from the outside) which causes a clockwise rotation of the first reference 23 has the effect of maintaining the second return to a first end of the groove, position (of Fig. 4) in which it is engaged with the third return 47. Conversely, when the ring is turned in the direction time, the first reference 23 turns counterclockwise and causes a displacement of the second return 46 to a second end of the groove, position in which it is no longer in contact with the third reference 47. Therefore, when the crown is rotated clockwise, the selection mechanism of the function to be corrected is inactive.

Of course, the skilled person can implement any other known security system without departing from the scope of the present invention.

The foregoing description attempts to describe a particular embodiment by way of non-limiting illustration and, the invention is not limited to the implementation of certain particular features which have just been described, as for example the nature of the information displayed or the forms and arrangements specifically illustrated and described for correction levers or cams.

The skilled person will not encounter any particular difficulty to adapt the content of the present disclosure to his own needs and implement a correction mechanism in part to meet the characteristics that have just been presented, without departing from the scope of the present invention. Note for example that the display device of the function to be corrected is not absolutely necessary for the implementation of the invention or could be implemented differently without departing from the scope of the invention.

Similarly, the skilled person will not encounter any particular difficulty to adapt the structure of the correction gear train or the shape and drive mode of the function selection cam according to its own needs, without departing from the scope of the present invention.

Of course, the crown rod implemented in the correction mechanism may be distinct from the basic one, used for reassembly and setting time, without departing from the scope of the invention.

Claims (11)

1. Mechanism for correcting at least first and second displayed information other than the current time, for a watch movement (1), comprising a rotating stem-crown (9), at least first and second correction levers (38 to 41) arranged for incrementing counting members (28) of said first and second information in response to a predefined action of a user, characterized in that it further comprises a control lever (30) comprising a base (31), intended to be pivotally mounted along a first axis of rotation X1 with respect to the watch movement, and carrying an arm (32) pivotally mounted along a second axis of rotation X2, said arm being arranged in such a manner that it is capable of taking at least first and second angular positions, with reference to said base, in response to a rotation of said stem-crown and in such a manner that it is located opposite said first and second correction levers, respectively, in said first and second positions, the correction mechanism further comprising a pusher (11) arranged to pivot said base (31) in response to an action of a user such that said arm (32) actuates one or other of said levers of correction (38 to 41). 2. Mechanism according to claim 1, characterized in that it comprises a cam (50) having a periphery of variable radius and whose angular position can be controlled by rotation of said stem-crown (9), said arm (32) being arranged in such a way that its angular position is a function of that of said cam. 3. Mechanism according to claim 2, characterized in that said arm (32) is held in abutment against the periphery of said cam (50). 4. Mechanism according to claim 2 or 3, characterized in that it comprises a gear train (29) arranged to establish a kinematic connection between said crown rod (9) and said cam (50), the latter being secured to a toothed wheel (49). 5. Mechanism according to claim 4, characterized in that an indexing board (51) is also integral with said toothed wheel (49) and arranged to cooperate with a hammer (58) to define predefined angular positions of said cam (50). 6. Mechanism according to claim 4 or 5, characterized in that it further comprises a drive member (88) of an indicator member (12) arranged to indicate that of said information which can be corrected at a given moment by pressing said pusher (11), said drive member (88) having a kinematic link (74, 84, 86) with said gear train (29). 7. Mechanism according to claim 6, characterized in that said drive member (88) is connected to said gear train (29) via a wheel (73) carrying an additional cam (74) whose periphery has a variable radius and arranged to control the angular position of a rake (84) bearing a gear engaged with a pinion (85), the latter meshing at least indirectly with said drive member (88). 8. Mechanism according to claim 7, characterized in that said gear train (29) comprises a return (46) arranged such that it allows the establishment of the kinematic connection between said cam (50) and said rod -couronne (9) in a first direction of rotation of the latter and that it interrupts in the opposite direction of rotation. 9. Mechanism according to one of the preceding claims, characterized in that said pusher (11) is coaxial with said stem-crown (9). 10. Mechanism according to one of the preceding claims, characterized in that it is arranged to correct information relating to the date and / or the day of the week and / or the week and / or month and / or the year and / or at the Moon phase. Clock movement (1) comprising at least first and second counting members (28) of first and second information other than the current time and a correction mechanism according to one of claims 1 to 10.