Amplified Jump Clock Display Mechanism

Abstract

One aspect of the present invention relates to an amplified jump watch display mechanism (100), which includes a continuously rotating control wheel (2), which is arranged to drive an indicator wheel (3) carrying a display (11), that is, the indicator wheel (3) is directly driven with the value of a basic pitch PE through direct or indirect continuous cooperation between the control wheel (2) and the indicator wheel (3), or the indicator wheel (3) is indirectly driven via an amplification mechanism (50) in at least one disengaged position by combining a device for disengaging a basic pitch drive mechanism, and the amplification mechanism (50) drives the indicator wheel (3) with an increased pitch PM that is greater than the basic pitch PE or is a multiple of the basic pitch PE.

Description

Technical Field

[0001] The present invention relates to a multiple jump watch display mechanism, which is arranged to be driven by an input moving part moved by a movement to display variables at multiple discrete positions through at least one display facing a display scale, wherein the discrete positions are separated by a certain interval, each of the intervals is equal to a basic pitch, or equal to an increased pitch larger than the basic pitch, or equal to an integer multiple of the basic pitch, and at least one of the intervals is different from the other intervals.

[0002] The invention also relates to a timepiece, in particular a wristwatch, comprising at least one such display mechanism.

[0003] The invention relates to the field of timepiece display mechanisms. Background Art

[0004] In most cases, a timepiece has at least one display mechanism comprising an indicator that pivots concentrically at a scale with which it cooperates. Such a display mechanism can be used in particular to display the hour or the date. Generally speaking, the scale markings are evenly distributed around the circumference.

[0005] In the case of a central time or date display, that is to say when the indicator pivots in the centre of the watch movement, it sweeps across the entire dial and there is the risk of obscuring at some point a complication or another display that would be situated in one sector of the dial.

[0006] In the case of an eccentric time or date display, that is to say when the indicator does not rotate at the center of the watch movement, the indicator sweeps over a circular surface of small diameter, which is usually located between the center of the movement and the outer diameter of the dial. The circumference of this surface is small and it is difficult to display all the scale markings in it, especially if they are letter or number markings. There are many ways to overcome this problem, in particular by using letter or number markings for every other scale and using shape markings, such as dots, lines, etc. for other positions. This solution is very suitable for indications with an even number of scales, but it does not necessarily solve the problem when the number of scales is odd. In fact, in this case, there needs to be a place to write the last scale and the first scale next to each other. Although all the numbers can be displayed, they may be difficult for the user to read due to the proximity of the numbers. Summary of the invention

[0007] The present invention proposes to provide a more versatile display mechanism in which the markings of the scale are not necessarily evenly distributed over the circumference, but are arranged so that the angular distance separating two optional consecutive markings is greater than the angular distance separating the other markings.

[0008] To this end, the present invention relates to an amplified jump watch display mechanism, which is arranged to be driven by an input moving part moved by a movement to display variables at multiple discrete positions through at least one display relative to a display scale, wherein the discrete positions are separated by a certain interval in pairs, each interval is equal to a basic pitch PE, or equal to an increased pitch PM larger than the basic pitch PE, and at least one of the intervals is different from the other intervals, characterized in that the mechanism includes a gear train for controlling the movement of the display, the gear train includes a continuously rotating control wheel driven by the input moving part, the control wheel is arranged to drive an indicator wheel carrying the at least one display, that is, the indicator wheel is directly driven by a basic pitch drive mechanism by continuously cooperating with the value of the basic pitch PE, or the indicator wheel is indirectly driven by an amplification mechanism (multiplier mechanism) in at least one disengagement position through a device for disengaging the basic pitch drive mechanism, and the amplification mechanism drives the indicator wheel with an increased pitch PM larger than the basic pitch PE.

[0009] In certain embodiments, the invention may further include one or more of the following features, which may be employed alone or in any technically feasible combination.

[0010] In a specific embodiment, the control wheel is arranged to drive the indicator wheel, that is, the indicator wheel is directly driven with the value of the basic pitch PE through direct or indirect continuous cooperation between the control wheel and the indicator wheel, or the indicator wheel is indirectly driven with a value of an integer multiple of the basic pitch through the amplification mechanism in at least one disengaged position by the device for disengaging the basic pitch drive mechanism, wherein the amplification mechanism drives the indicator wheel with an increased pitch PM equal to an integer multiple of the basic pitch PE different from one.

[0011] In a particular embodiment, the indicator wheel comprises a coaxial and synchronized lower stage, the lower stage having a complete toothing and engaging with a first jumper to maintain the displayed position, and an upper stage cooperating with the control wheel over a portion of its circumference and comprising a partially truncated toothing, each truncated area constituting one of the said disengaging means for interrupting the kinematic chain between the upper stage and the control wheel.

[0012] In a particular embodiment, the indicator wheel comprises at least one bearing portion arranged to cooperate with at least one amplified jump finger, the amplified jump finger being driven by the control wheel and being arranged to push the at least one bearing portion as soon as the upper stage and the control wheel are disengaged from each other so as to pivot the indicator wheel with an angular stroke greater than a basic stroke corresponding to the basic pitch PE.

[0013] In a particular embodiment, the at least one augmented jump finger is arranged to push the at least one carrier as soon as the upper stage and the control wheel are disengaged from each other to pivot the indicator wheel with an angular travel corresponding to an integer multiple of the basic pitch different from unity.

[0014] In a particular embodiment, the amplification mechanism comprises an amplification jump wheel synchronized with said control wheel, which drives an amplification gear train to which belongs an amplification jump setting wheel carrying said at least one amplification jump finger.

[0015] In a specific embodiment, the amplification gear train includes at least one intermediate amplification jump setting wheel between the amplification jump wheel and the amplification jump setting wheel, and wherein the number of teeth of the moving parts constituting the amplification gear train limits the ratio between the increased pitch PM and the basic pitch PE.

[0016] In a particular embodiment, the amplification gear train includes at least one intermediate amplification jump setting wheel between the amplification jump wheel and the amplification jump setting wheel, and wherein the number of teeth of the moving parts constituting the amplification gear train defines the value of the integer multiple of the basic pitch.

[0017] In a particular embodiment, the mechanism comprises an amplification hopping switch arranged to maintain the position of the amplification hopping wheel.

[0018] In a particular embodiment, the amplified jump finger comprises a plurality of basic fingers, each basic finger being arranged to cooperate with one of the bearing parts.

[0019] In a particular embodiment, the maximum number of teeth included in the indicator wheel is greater than the number of teeth included in the control wheel, and the difference in the number of teeth between the indicator wheel and the control wheel is the sum of the number of teeth corresponding to the incremental jumps performed by the display during one revolution of the indicator wheel.

[0020] In a particular embodiment, said mechanism is a date mechanism and comprises said control wheel having 31 teeth and an indicator wheel comprising at least 32 teeth to clearly separate the display of the 31st day of one month from the display of the first day of the next month.

[0021] According to another aspect, the invention relates to a timepiece comprising at least one movement arranged to drive a display mechanism as described above included in said timepiece. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Other features and advantages of the present invention will become apparent upon reading the following detailed description with reference to the accompanying drawings, in which:

[0023] - Figure 1The amplified jump watch display mechanism according to the present invention is schematically shown in a plan view, which is applied to a specific non-limiting case of date display. In this specific variation, the display jumps a certain space between the mark "31" and the mark "1", which is called the enlarged space, which is larger than the space that separates the other marks equidistantly, which is called the basic space. The mechanism includes an input moving part, which is a drive pinion, which is arranged to be driven by the watch movement and then drives the control wheel, which is a thirty-one gear here and is integrated with the amplified jump wheel. The amplified jump wheel is coaxial with the control wheel and is located below the control wheel, and its ring gear is shown in solid lines in the figure, and its rim and arms are shown in dotted lines; the control wheel is held in the appropriate position by the amplified jump jumper, and the amplified jump wheel is therefore also held in the appropriate position. The control wheel cooperates with the date indicator wheel, which is carried on Figures 4 to 8 The mechanism according to the invention comprises a disengagement mechanism which allows the date indicator wheel to be undriven by the control wheel in certain positions, the disengagement mechanism comprising here a cut-off area on the upper toothing level of the indicator wheel, which thus comprises only 29 teeth, while the lower level of the indicator wheel comprises 32 teeth, which are identical to those of the higher level according to the same pitch and are aligned with those teeth that remain. This lower level always cooperates with the date indicator jumper to keep the indicator wheel in position. The date indicator wheel also carries a bearing part, which here protrudes from the upper surface of the date indicator wheel in a non-restrictive manner. The second kinematic chain starts from the amplification jump wheel, which controls the rotation of the amplification jump setting wheel carrying the amplification jump finger via the intermediate amplification jump setting wheel (whose meshing with the amplification jump wheel is not shown in this figure), and the amplification jump finger is able to push the bearing part of the date indicator wheel in certain corresponding angular positions to rotate the date indicator wheel by a certain angular value. In the example shown, the combination of the toothed rings of the gear train of the second kinematic chain causes the pressure control indicator wheel of the carrier to rotate with an increased pitch that is twice the basic pitch;

[0024] - Figure 2 The same configuration is schematically shown in a perspective view. Figure 1 A mechanism in which the amplified jump finger contacts the bearing portion of the date indicator wheel;

[0025] - Figure 3 The date indicator wheel is shown schematically and separately in a perspective view;

[0026] - Figures 4 to 8The evolution of the cooperation between the moving parts of the same mechanism is schematically shown in plan view, and the related evolution of the display performed by the display, which is a hand mounted integrally with the date indicator wheel, facing a dial with a display scale comprising numerical markings for odd dates separated by a single point for even dates; this display scale comprises a constant basic pitch of the intervals between the markings for days 1 to 31, and an increasing interval between the markings 31 and 1, here twice the previous interval. In these figures, the control wheel is partially cut away to show the multiplier jump wheel and its meshing with the intermediate multiplier jump setting wheel;

[0027] - Figure 4 The display of the date 29 is shown, the cut-off area of ​​the indicator wheel not yet facing the toothing of the control wheel, the amplified jump finger is in the angular position at 10 o'clock and is still away from the carrier of the indicator wheel;

[0028] - Figure 5 The display of the date 30 is shown, with the cut-off area of ​​the indicator wheel facing the toothing of the control wheel and the amplified jump finger in the angular position at 9 o'clock and still away from the carrier of the indicator wheel;

[0029] - Figure 6 The display shows the date 31, which corresponds to Figure 1 and 2 position, the cut-off area of ​​the indicator wheel faces the toothed ring of the control wheel, so that the control wheel can no longer drive the indicator wheel, and the amplification jump finger is in the angular position at 8 o'clock and is in contact with the bearing part of the indicator wheel, ready to initiate an amplification jump;

[0030] - Figure 7 The display of date 1 is shown, an amplification jump of two basic steps has just been performed, the cut-off area of ​​the indicator wheel is shaded relative to the toothing of the control wheel, the control wheel is now able to drive the indicator wheel, the amplification jump finger is in the angular position at 7 o'clock and is close to leaving contact with the carrier of the indicator wheel;

[0031] - Figure 8 The display of date 2 is shown, the cut-off area of ​​the indicator wheel has been moved away from the toothing of the control wheel, which cooperates with the toothing of the upper level of the indicator wheel, the amplified jump finger is in the angular position at 6 o'clock and no longer interferes with the carrier of the indicator wheel until the end of the following month;

[0032] - Fig. 9 A further variant of the amplified jump display mechanism is schematically shown in a perspective view, in which the amplified jump finger is carried by the control wheel and here contacts the bearing portion of the date indicator wheel;

[0033] - Fig.10 The perspective view schematically shows Fig. 9 The other side of the variant;

[0034] - Fig.11 A further variant of the amplified jump display mechanism is schematically shown in plan view, wherein the indicator wheel comprises a plurality of cut-off areas and a plurality of bearing portions, and wherein the amplified jump finger comprises a plurality of basic fingers, wherein one of the basic fingers contacts one of the bearing portions of the date indicator wheel;

[0035] - Fig.12 is a block diagram showing a watch including a movement driving an input moving part of an augmented jumping display mechanism according to the present invention. DETAILED DESCRIPTION

[0036] The invention relates to a timepiece display mechanism 100, arranged to be driven by an input mobile 1 moved by a movement 200, to display a variable at a plurality of discrete positions. This display is performed by at least one display 11, such as a pointer, opposite a display scale 12, the discrete positions 12a, 12b being spaced apart by intervals. Each interval is equal to a basic pitch PE, or to an increased pitch PM greater than the basic pitch PE, in particular to an integral multiple of the basic pitch, and at least one interval is different from the others.

[0037] According to the invention, the mechanism 100 comprises a gear train for controlling the movement of the display 11. The gear train comprises a continuously rotating control wheel 2, which is driven directly or indirectly by the input moving part 1, or constitutes the input moving part 1. The control wheel 2 is arranged to drive the indicator wheel 3 carrying the display 11, i.e., either directly driving the indicator wheel 3 at the value of the basic pitch PE by direct or indirect continuous cooperation between the control wheel 2 and the indicator wheel 3, or indirectly driving the indicator wheel 3 in at least one disengaged position (i.e., disengaged position) by incorporating means for disengaging the basic pitch drive mechanism via an amplification mechanism 50, which drives the indicator wheel 3 at an increased pitch PM greater than the basic pitch PE.

[0038] More specifically, the control wheel 2 is arranged to drive the indicator wheel 3, i.e., the indicator wheel 3 is either directly driven with the value of the basic pitch PE through direct or indirect continuous cooperation between the control wheel 2 and the indicator wheel 3, or the indicator wheel 3 is indirectly driven with the value of an integer multiple of the basic pitch through the amplification mechanism 50 in at least one disengaged position by combining a device for disengaging the basic pitch drive mechanism, i.e., the amplification mechanism 50 drives the indicator wheel 3 with an increased pitch PM equal to an integer multiple of the basic pitch PE different from one.

[0039] More specifically, indicator wheel 3 comprises coaxial and synchronized lower stage 3a, having a full toothing and engaging first jumper 10 to maintain the display position, and upper stage 3b, cooperating over a portion of its circumference directly with control wheel 2 or via a direct gear train, and comprising a partially truncated toothing, each truncated area 30 constituting a disengagement device for interrupting the kinematic chain between upper stage 3b and control wheel 2. Lower stage 3a and upper stage 3b may in particular form a one-piece assembly.

[0040] More specifically, indicator wheel 3, for example upper stage 3b in the case of the figures, comprises at least one bearing portion 8, 80 arranged to cooperate with at least one amplified jump finger 7 driven directly or indirectly by control wheel 2 and arranged to push at least one bearing portion 8, 80 so as to cause indicator wheel 3 to pivot with an angular travel greater than the basic travel corresponding to basic pitch PE, as long as upper stage 3b and control wheel 2 are disengaged from each other.

[0041] More specifically, the at least one amplified jump finger 7 is arranged to push the at least one carrier 8 , 80 so as to pivot the indicator wheel 3 with an angular travel corresponding to an integer multiple different from one of the basic pitch, as long as the upper stage 3 b and the control wheel 2 are disengaged from each other.

[0042] More specifically, the amplification mechanism 50 comprises an amplification jump wheel 4 synchronized with the control wheel 2 , which drives an amplification gear train, wherein the amplification jump setting wheel 6 carrying the at least one amplification jump finger 7 belongs to the amplification gear train.

[0043] More specifically, the amplification gear train includes at least one intermediate amplification jump setting wheel 5 between the amplification jump wheel 4 and the amplification jump setting wheel 6, and the number of teeth of the moving parts constituting the amplification gear train defines the ratio between the increased pitch PM and the basic pitch PE.

[0044] Further more specifically, the amplification gear train includes at least one intermediate amplification jump setting wheel 5 between the amplification jump wheel 4 and the amplification jump setting wheel 6, and the number of teeth of the moving parts constituting the amplification gear train defines a value of an integer multiple of the basic pitch.

[0045] More specifically, the mechanism 100 comprises an amplification jumper 9 arranged to maintain the position of the control wheel 2 and, therefore, the amplification jumper wheel 4 .

[0046] More specifically, the amplified jump finger 7 comprises a plurality of basic fingers 70 , each finger 70 being arranged to cooperate with a carrier 8 , 80 .

[0047] More specifically, indicator wheel 3 comprises a maximum number of teeth greater than the number of teeth comprised in control wheel 2, and the difference in number of teeth between indicator wheel 3 and control wheel 2 is the sum of the number of teeth corresponding to the incremental jumps accomplished by display 11 during one revolution of indicator wheel 3.

[0048] More specifically, mechanism 100 is a date mechanism and comprises a 31-tooth control wheel 2 and an indicator wheel 3 comprising at least 32 teeth to clearly separate the display of the 31st day of one month from the display of the first day of the next month.

[0049] The invention also concerns a timepiece 500 comprising at least one movement 200 arranged to drive such a display mechanism 100 included in the timepiece 500 .

[0050] The accompanying drawings illustrate a specific and non-limiting variant of the invention, which is shown for an application to a date display. The following description refers to a double jump when the display performs an angular displacement of an increased pitch PM, that is to say greater than the basic pitch PE. This example is by no means limiting, since the jumps may have different values ​​and, in particular, in preferred applications where the increased pitch PM is a multiple of the basic pitch PE, it may be three, four or more times.

[0051] The input movable part 1 is here a drive pinion which is driven by the timepiece movement 200 by one pitch per day.

[0052] Control wheel 2 is here a thirty-one gear with 31 teeth, which is driven by drive pinion 1 and held in position by amplified jump jumper 9, which is a thirty-one jumper. Control wheel 2 thus performs one jump per day and makes one rotation per month, which corresponds to the standard date.

[0053] Indicator wheel 3, here a date indication wheel, is driven by control wheel 2 and is held in place by first jumper 10 as date indication jumper. Indicator wheel 3 has 32 teeth and consists of two levels. Lower level 3a is complete and includes these 32 teeth and is in permanent contact with first jumper 10 which holds it in place. Upper level 3b, which is in contact with control wheel 2 driving it, has a gap 30, here a gap on 3 teeth, to allow a double jump at the desired moment without driving control wheel 2.

[0054] The amplification jump wheel 4, which is integral with the control wheel 2, drives the intermediate amplification jump setting wheel 5, which in turn drives the amplification jump setting wheel 6, which is integral with the amplification jump finger 7. The transmission ratio between the amplification jump wheel 4 and the amplification jump setting wheel 6 sets the rotation speed of the amplification jump finger 7. For this particular application, the transmission ratio must be an integer to ensure that the position of the amplification jump finger 7 is equal to each full or partial revolution of the control wheel 2. In this example, a ratio of 1 / 2 is selected so that the amplification jump finger 7 has twice the speed.

[0055] Carrier 8 is here constituted, without limitation, by a pin which is integral with indicator wheel 3 and arranged so that, when control wheel 2 cannot drive indicator wheel 3 due to the presence of gap 30 on upper step 3b of said indicator wheel, it is driven by amplified jump finger 7. Since the rotation speed of amplified jump finger 7 is higher than that of control wheel 2, this causes a double jump of indicator wheel 3, while control wheel 2 performs only a single jump. The mechanism then returns to the starting position and control wheel 2 can thus start a new cycle, which will again drive indicator wheel 3 step by step.

[0056] Of course, some of the components of the mechanism may be combined to form an integral assembly, for example the carrier 8 may be integral with the indicator wheel 3 .

[0057] The date mark 12 is arranged so that the angular distance PM separating the date mark 12a according to the mark "31" and the date mark 12b according to the mark "1" is greater than the angular distance PE separating the other marks.

[0058] The date indicator hand 11 integral with the indicator wheel 3 pivots concentrically with the date marking 12. The date indicator hand 11 faces the date marking 12a according to the marking "31" when the mechanism is in the position just before the double jump, and therefore performs a greater angular displacement during the next jump so as to face directly the date marking 12b according to the marking "1".

[0059] Therefore, the angular displacement of the date indicator hand 11 is regular throughout the entire rotation process of the date indicator hand 11 until it reaches the opposite side of the date mark 12a according to the mark “31” and thus performs a larger angular displacement between the date mark 12a according to the mark “31” and the date mark 12b according to the mark “1”.

[0060] The present invention is advantageous because it is easily adaptable to different types of displays.

[0061] Specifically, the angular distance of the maximum jump can be selected by modifying the number of teeth of the indicator wheel 3, the position of the pin 8, the shape of the amplified jump finger 7, and the rotation speed of the amplified jump finger 7 achieved by the transmission ratio between the amplified jump wheel 4 and the amplified jump setting wheel 6.

[0062] It is also possible to increase the number of jump fingers 7 and pins 8 so that the date indicator hand 11 performs multiple increasing pitch jumps during its rotation, such as Fig.11 As shown, Fig.11 A particular non-limiting embodiment is shown, which comprises a 35-tooth control wheel 2 to allow four jumps to be performed in association with four gaps 30 and four bearings 80, the amplified jump setting wheel 6 in turn comprising two amplified jump fingers 70. The transmission ratio between the amplified jump wheel 4 and the amplified jump setting wheel 6 should be selected accordingly.

[0063] Likewise, the auxiliary gear train formed by a set of moving parts 4, 5 and 6 can be eliminated, and the amplified jump shift finger 7 can be directly fixed on the thirty-one wheel 2.

Claims

1. An amplified jump watch display mechanism (100), which is arranged to be driven by an input moving part (1) moved by a movement (200) so as to display variables at multiple discrete positions through at least one display (11) relative to a display scale (12), wherein the discrete positions are separated by a certain interval, each interval is equal to a basic pitch PE, or equal to an increased pitch PM greater than the basic pitch PE, wherein the increased pitch PM includes an integer multiple of the basic pitch PE, and at least one of the intervals is different from the other intervals, characterized in that The mechanism (100) comprises a gear train for controlling the movement of the display (11), the gear train comprising a continuously rotating control wheel (2), the control wheel (2) being directly or indirectly driven by the input moving part (1) or constituting the input moving part (1), and the control wheel (2) being arranged to drive an indicator wheel (3) carrying the at least one display (11), i.e., directly driving the indicator wheel (3) by direct or indirect continuous cooperation with the value of the basic pitch PE via a basic pitch drive mechanism, or indirectly driving the indicator wheel (3) via an amplification mechanism (50) in at least one disengagement position by a disengagement device for disengaging the basic pitch drive mechanism. Wheel (3), wherein the amplification mechanism (50) drives the indicator wheel (3) with an increased pitch PM greater than the basic pitch PE, the indicator wheel (3) comprising a coaxial and synchronized lower stage (3a) and an upper stage (3b), the lower stage (3a) having a complete toothed ring and engaging with a first jumper (10) to maintain the display position, the upper stage (3b) cooperating with the control wheel (2) directly or via a direct gear train over a portion of the circumference of the upper stage (3b) and comprising a partially truncated toothed ring, each truncation area (30) constituting one of the said disengaging means for interrupting the kinematic chain between the upper stage (3b) and the control wheel (2).

2. The display mechanism (100) according to claim 1, characterized in that: The control wheel (2) is arranged to drive the indicator wheel (3) in such a way that the indicator wheel (3) is directly driven with the value of the basic pitch PE through direct or indirect continuous cooperation between the control wheel (2) and the indicator wheel (3), or the indicator wheel (3) is indirectly driven with the value of an integer multiple of the basic pitch PE through a disengagement device for disengaging the basic pitch drive mechanism at at least one disengagement position via an amplification mechanism (50), wherein the amplification mechanism (50) drives the indicator wheel (3) with an increased pitch PM equal to an integer multiple of the basic pitch PE different from one.

3. The display mechanism (100) according to claim 2, characterized in that: The indicator wheel (3) comprises at least one bearing portion (8; 80) arranged to cooperate with at least one amplified jump finger (7), the amplified jump finger being driven directly or indirectly by the control wheel (2) and arranged to push the at least one bearing portion (8; 80) as soon as the upper stage (3b) and the control wheel (2) are disengaged from each other, so as to cause the indicator wheel (3) to pivot with an angular stroke greater than a basic stroke corresponding to the basic pitch PE.

4. The display mechanism (100) according to claim 3, characterized in that: The at least one amplified jump finger (7) is arranged to push the at least one carrier (8; 80) as soon as the upper stage (3b) and the control wheel (2) are disengaged from each other, so that the indicator wheel (3) is pivoted with an angular stroke corresponding to an integer multiple of the basic pitch different from one.

5. The display mechanism (100) according to claim 4, characterized in that: The amplification mechanism (50) comprises an amplification jump wheel (4) synchronized with the control wheel (2), the amplification jump wheel (4) drives an amplification gear train, and the amplification jump setting wheel (6) carrying the at least one amplification jump finger (7) belongs to the amplification gear train.

6. The display mechanism (100) according to claim 5, characterized in that: The amplification gear train includes at least one intermediate amplification jump setting wheel (5) between the amplification jump wheel (4) and the amplification jump setting wheel (6), and the number of teeth of the moving parts constituting the amplification gear train limits the ratio between the increased pitch PM and the basic pitch PE.

7. The display mechanism (100) according to claim 5, characterized in that: The amplification gear train includes at least one intermediate amplification jump setting wheel (5) between the amplification jump wheel (4) and the amplification jump setting wheel (6), and the number of teeth of the moving parts constituting the amplification gear train defines the value of the integer multiple of the basic pitch.

8. The display mechanism (100) according to any one of claims 5 to 7, characterized in that: The display mechanism (100) comprises an amplification jump switch (9) arranged to maintain the position of the amplification jump wheel (4).

9. The display mechanism (100) according to any one of claims 3 to 7, characterized in that: The amplified jump finger (7) comprises a plurality of basic fingers (70) each arranged to cooperate with one of the carrier parts (8; 80).

10. The display mechanism (100) according to any one of claims 1 to 7, characterized in that: The maximum number of teeth included in the indicator wheel (3) is greater than the number of teeth included in the control wheel (2), and the difference in the number of teeth between the indicator wheel (3) and the control wheel (2) is the sum of the number of teeth corresponding to the incremental jumps performed by the display (11) when the indicator wheel (3) rotates one revolution.

11. The display mechanism (100) according to any one of claims 1 to 7, characterized in that: The display mechanism (100) is a date mechanism and comprises a 31-tooth control wheel (2) and an indicator wheel (3), wherein the indicator wheel (3) comprises at least 32 teeth to clearly separate the display of the 31st day of one month from the display of the 1st day of the next month.

12. A timepiece (500) comprising at least one movement (200), the movement (200) being arranged to drive a display mechanism (100) according to any one of claims 1 to 11 included in the timepiece (500).

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