Display mechanism with roller for watch
阅读说明:本技术 用于手表的具有滚轮的显示机构 (Display mechanism with roller for watch ) 是由 A·佐格 E·格勒 于 2017-07-05 设计创作,主要内容包括:本发明涉及一种用于手表(1000)的钟表显示机构(100),其包括:滚轮(10,11,12,13,14),该滚轮围绕主轴线(D10)枢转并且包括活板(20),每个活板均围绕平行于主轴线(D10)的次级轴线(D20)枢转并且具有两个面(201;202);用于使滚轮(10,11,12,13,14)围绕主轴线(D10)枢转的第一驱动装置(31);以及第二驱动装置(32),该第二驱动装置用于在次级轴线(D20)相对于主轴线(D10)的确定位置使活板(20)围绕其次级轴线(D20)枢转,并且所述第二驱动装置(32)设置成使所述滚轮(10,11,12,13,14)中包括的每个所述活板(20)同步枢转。(The invention relates to a timepiece display mechanism (100) for a watch (1000), comprising: a roller (10, 11, 12, 13, 14) pivoting about a main axis (D10) and comprising flaps (20) each pivoting about a secondary axis (D20) parallel to the main axis (D10) and having two faces (201; 202); a first drive (31) for pivoting the roller (10, 11, 12, 13, 14) about a main axis (D10); and second drive means (32) for pivoting the flaps (20) about their secondary axis (D20) in a determined position of the secondary axis (D20) with respect to the main axis (D10), and said second drive means (32) being arranged to pivot each of said flaps (20) comprised in said rollers (10, 11, 12, 13, 14) synchronously.)
1. Timepiece display mechanism (100) comprising at least one wheel (10, 11, 12, 13, 14) pivoting about a wheel axis (D10), the wheel (10, 11, 12, 13, 14) comprising at least one flap (20) pivoting about a flap axis (D20) parallel to the wheel axis (D10) and distinct from the wheel axis (D10), the at least one flap (20) comprising at least one first face (201) and at least one second face (202), the timepiece display mechanism (100) comprising first drive means (31) for pivoting the wheel (10, 11, 12, 13, 14) about the wheel axis (D10), wherein the timepiece display mechanism (100) comprises second drive means (32) distinct from the first drive means (31), the second drive means (32) being intended to cause at least one flap axis (D20) to be in at least one determined position relative to the wheel axis (D10) Each flap (20) being pivoted about its flap axis (D20), the timepiece display mechanism being characterized in that the second drive means (32) are arranged to cause each flap (20) included in the rollers (10, 11, 12, 13, 14) to pivot synchronously.
2. Timepiece display mechanism (100) according to claim 1, characterised in that the constant rotation of the flap (20) is calculated from the scroll wheels (10, 11, 12, 13, 14) so that in the display position visible to the user, the indication of the flap (20) rotates by 180 ° every revolution of the scroll wheels (10, 11, 12, 13, 14).
3. Timepiece display mechanism (100) according to claim 1, characterised in that the second drive means (32) comprise at least one flap drive pinion (35) at each flap (20), the flap drive pinion (35) being centred on the flap axis (D20) and being arranged to cooperate with control means included in the timepiece display mechanism (100) in order to alter the position of successive flaps (20) of the same roller (10, 11, 12, 13, 14) in sequence or continuously, or to alter the position of a specific flap (20) as required.
4. The timepiece display mechanism (100) according to claim 1, characterised in that, in order to keep each flap (20) in an oriented position, each flap comprises a flap cam (25) or a heart comprising as many low points (26) as there are faces (201, 202) that the flap (20) has; and the roller (10, 11, 12, 13, 14) comprises at least one spring (15) arranged to exert a force on a jump spring (17) located in the vicinity of each flap cam (25) or heart-piece to position the flap cam (25) or heart-piece or to form the jump spring (17).
5. The timepiece display mechanism (100) according to claim 1, characterised in that, in order to keep each flap (20) in its oriented position, each flap comprises a flap cam (25) or a heart comprising as many low points (26) as there are faces (201, 202) that the flap (20) has; and the roller (10, 11, 12, 13, 14) comprises at least one magnet (70) for each flap cam (25) or heart, arranged to exert a force on the flap cam (25) or heart made of magnetic material to position the position of the flap cam (25) or heart.
6. The timepiece display mechanism (100) according to claim 1, characterised in that the first drive means (31) comprises a control wheel (3120, 3130) some of the teeth of which have been removed and which meshes with a roller drive pinion (312, 313) directly or via a pair of reduction gears (3131) in order to obtain the desired reduction.
7. The timepiece display mechanism (100) according to claim 1, characterised in that at least one of the rollers (10, 11, 12, 13, 14) has at least one fixed display position and at least one variable display position realized via the flap (20) comprising a plurality of the faces (201, 202).
8. The timepiece display mechanism (100) according to claim 7, characterised in that the first drive means (31) comprise an input train (61) driving a main wheel (60) one revolution of which corresponds to the duration of the display time of the rollers (10, 11, 12, 13, 14) and which carries a main cam (50) carrying peripheral sections of different geometry, comprising a concentric section (51) corresponding to the fixed display position, and a recessed section (52) provided with a drive pin (5X) corresponding to the variable display position of the display rollers (10, 11, 12, 13, 14), the main cam (50) cooperating with an eccentric Maltese cross secondary cam (40) pivoted about a fixed point and arranged to pivot when the recess (52) and the drive pin (5X) pass, the secondary cam (40) carries a secondary wheel (42) which meshes with a roller drive wheel (62), and the main wheel (60) also carries a main flap drive wheel (63) which in turn meshes with a flap pinion (64) arranged to control or in fact form the flap drive pinion (35) centred on the flap axis (D20).
9. The timepiece display mechanism (100) according to claim 7, characterised in that the first drive means (31) comprise an input train (61) driving a main wheel (60) one revolution of which corresponds to the duration of the display time of the rollers (10, 11, 12, 13, 14) and which carries a main cam (50) carrying peripheral segments of different geometries, comprising a concentric segment (51) corresponding to the fixed display position, and a segment containing drive means (53) close to a recess (52), the main cam (50) cooperating with an eccentric star wheel (71) which pivots about a fixed point and is arranged to pivot when the drive means (53) pass, and to remain in the angular position of the star wheel when two teeth (72) comprised in the star wheel rest on the concentric segment (51), the star wheel (71) carries a secondary wheel (70) which meshes with a roller drive wheel (62) which in turn is integral with the roller (10, 11, 12, 13, 14), and the main wheel (60) also carries a main flap drive wheel (63) which in turn meshes with a flap pinion arranged to control or in fact form a flap drive pinion (35) centred on the flap axis (D20).
10. A watch (1000) comprising at least one timepiece display mechanism (100) according to claim 1.
Technical Field
The invention relates to a timepiece display mechanism comprising at least one roller (roller) pivoting about a roller axis, the roller comprising at least one flap (flap) pivoting about a flap axis parallel to and distinct from the roller axis, the at least one flap comprising at least one first face and at least one second face, the display mechanism comprising first drive means for pivoting the roller about the roller axis, wherein the display mechanism comprises second drive means distinct from the first drive means for pivoting at least one of the flaps about its flap axis in at least one determined position of the flap axis about the roller axis.
The invention also relates to a watch comprising at least one such display mechanism.
The present invention relates to the field of timepiece display mechanisms, in particular for watches, and more particularly to calendar display mechanisms.
Background
The legibility of the display device is a major consideration in the manufacture of timepieces, particularly calendar-type display devices which are difficult to make in a form that is easy for the user to view and recognize.
Timepiece displays are rarely made using rollers, since indicating devices in this form require a great thickness due to the diameter of the rollers, which include, for example, indications of up to 31 days of the month, or 52 days of the year, and are not compatible with the particular geometry of the watch.
Moreover, if very small-sized characters are used, it is necessary to use a magnifying glass in the thickness of the watch-glass, which is very disadvantageous to the aesthetic appearance of the watch, while still being difficult to read.
Static displays using flaps or blades for miniature clocks and other clocks are difficult to transfer to watches because they generally rely on gravity. They are more fragile and do not withstand impact.
Us patent 3964428 in the name of ARAI KIYOYUKI describes an indicating device with a rotating flap which on both sides has, at the periphery of the drum, means for guiding the flap held in a tangential orientation. During rotation of the drum, a mechanism allows the flap to flip around its axis.
Disclosure of Invention
The present invention proposes to develop a display device using a wheel having an easy-to-read time indication means despite the limited diameter of the wheel.
To this end, the invention relates to a timepiece display mechanism according to claim 1.
The invention also relates to a watch comprising at least one such display mechanism.
Drawings
Other features and advantages of the present invention will become apparent upon reading the following detailed description and upon reference to the drawings in which:
figure 1 shows a schematic front view of a watch comprising a roller display mechanism according to the invention of the calendar type.
Fig. 2 shows, in a similar manner to fig. 1, a date display device according to the invention with a flap on the tens and units rollers.
Fig. 3 shows, in a similar manner to fig. 1, a gear train driving the tens roller of fig. 2.
FIG. 4 shows, in a similar manner to FIG. 1, a gear train driving the unit rollers of FIG. 2.
Fig. 5 schematically shows an end view of the unit roller of fig. 2 in a plane perpendicular to the axis of rotation of the roller, wherein the pivoting state of one of the flaps of the roller is shown in dashed lines.
Fig. 6 shows a detail of the unit roller of fig. 5 in a similar manner to fig. 1.
Fig. 7 shows, in a similar manner to fig. 5, a variant of the unit roller of fig. 2, showing means for actuating and retaining the flaps, wherein the pivoting state of one of the flaps of the roller is shown in dashed lines.
Fig. 8 shows a detail of the unit roller of fig. 7 in a similar manner to fig. 1.
Fig. 9 shows a schematic perspective view of the unit roller of fig. 7.
Figures 10 and 11 schematically show a section view and an end view, respectively, of the unit roller of figure 7 in an intermediate position, in a plane perpendicular to the axis of rotation of the roller, in which is shown the spring also visible in figure 9, arranged to exert a force on the jumper spring arranged in the vicinity of the flap cams for positioning (index) the position of these cams and of the respective flaps.
Figures 12 to 14 show, in a similar way to figures 9 to 11, a lunar calendar roller according to the present invention.
Fig. 15 shows the rotation of the unit roller with five flaps in a similar way to fig. 3 and 4.
Fig. 16 shows, in a similar way to fig. 15, the rotation control of a particular wheel with seven indications corresponding to the days of the week.
Fig. 17 shows, in a similar manner to fig. 7, a further variant of the unit roller of fig. 2, showing a device for the actuation and magnetic retention of the flaps, wherein the pivoting state of one of the flaps of the roller is shown in dashed lines.
Fig. 18 shows a detail of the unit roller of fig. 17 in a similar manner to fig. 8.
Figures 19 and 20 show another variant comprising a partial toothing alternative to the maltese cross system described above.
Fig. 21 shows, in a similar way to fig. 5, a variant in which the positioning of the position of the flap cam is achieved by a single spring which also acts as a jumper spring.
Figures 22 to 26 schematically show a variant of the display for leap years:
fig. 22 shows in perspective view a tripod hand at 120 ° over the extension of the axis of the lunar calendar roller;
figure 23 shows, in a section perpendicular to this axis, a spider held by a jumper spring driving a tripod hand;
figures 24 and 25 show, in a similar way to figure 23 (but without showing the jumper spring), the cooperation of the star wheel via an eccentric rod integral with the flap for its driving;
figure 26 is an end view from the side of the tripod pointer.
Fig. 27 shows, in a similar manner to fig. 7, a further variant for retaining the flap without using a jumper spring, in which the drive is effected by a partial toothing and the guidance is effected by an outer circumference which is in contact with the actual flap.
Detailed Description
The invention is shown in a non-limiting manner in the figures with rollers for the day of the week, for the date (tens and units rollers) and for the month's calendar.
For example, fig. 1 shows, in a non-limiting manner, a watch comprising a wheel, on which the height of the characters is greater than 2.20mm, on a wheel diameter of 5.00 mm.
The invention therefore concerns a
The
The
More particularly, in
More particularly, the second actuating means 32 are arranged to pivot only one
In another variant, the second drive means 32 are arranged to pivot each
In a variant, which is preferred because less space is used, in which the second drive means 32 are arranged to pivot only one
According to the invention, at each
More particularly, the motorization of the second driving means 32 or the control effected via the watch stem or the pressing, pulling, etc., facilitates the updating of the calendar when the watch has been stopped for a long time.
More particularly, in order to keep each
In one particular variant, as shown in fig. 21, the paired structure constituted by the jumper spring and the spring is advantageously replaced by at least one
In a variant of similar function, more particularly, in order to keep each
More particularly, as shown in fig. 3 and 4, the first drive means 31 comprise
More particularly, at least one
More particularly, the first drive means 31 comprise an
The invention also relates to a
The drawings illustrate specific embodiments of the invention.
FIG. 2 shows a date display on a scroll wheel. Since it is not possible to display 31 days on the circumference of a roller of 5mm diameter or the like, the units and tens are distributed over two rollers: the tens wheel 12 has four digits and the units wheel 13 has ten digits.
The two rollers are driven by two
Fig. 3 shows the drive train for the tens wheel 12: the first drive means 31 comprise a
Fig. 4 shows the drive train for the units roller 13: the first drive means 31 comprise a
These driving principles are similar to the well-known principles of large aperture date display devices.
Fig. 5 and 6 show the unit display on the
Figures 7 to 11 show the rotation of the
The
In order to limit the space occupied by the system, it is advantageous to make use of a solution that controls the rotation of the
Which can be driven by a gear train (not shown) included in the second drive means 32. In the particular variant of fig. 7, the second drive means 32 comprise a fixed toothed segment at one point on the outer circumference of the
Figures 12 to 14 show in a similar way the rotation of a calendar roller comprising six
Figure 15 shows the rotation of the unit roller with five flaps. As described above, rotation of the units roller may be achieved by having a thirty-one gear missing one or two teeth for passage of a ten-tooth pinion. For a roller with five flaps, a ten-tooth pinion should be reduced to five teeth for 1/5 revolutions per day, however, this reduction is geometrically not feasible for its function. Therefore, it is necessary to add a gear reduction action by a pair of
3130 with 31 teeth: rotate for 1 circle per month
3132 with 10 teeth: rotate for 1 circle every 10 days
3133 with 20 teeth: rotate for 1 circle every 10 days
313 with 10 teeth: turn 1 turn every 5 days.
In a particular embodiment with maltese crosses, the first driving means 31 comprise an
More particularly, fig. 16 shows a particular variant of such a maltese cross embodiment, for controlling the rotation of a wheel with seven indications corresponding to the days of the week. In the case of a week, since the number of days is a prime number, it is not possible to distribute it over the leaves as simply as before. If the wheel cannot be displayed on the circumference for 7 days, the scheme is limited:
-a roller with six fixed positions and a flap with two faces;
-a roller with five fixed positions and two flaps with two faces;
-a roller with four fixed positions and three flaps with two faces;
a roller with one fixed position and two flaps with three faces.
Figure 16 depicts a first variant comprising a roller with six fixed positions and one flap with two faces. Adjustments to other variations may be accomplished in a similar manner. The first drive means 31 comprise an
More generally, for a display of N periods, the
The
The
The
Thus, the secondary
On day seven, the shoulder 41 of the secondary
The
Like the
The flap pinion 64 carries a
Thus, when the
When the
Fig. 17 and 18 show an advantageous variant of the invention in which the jumper spring and the spring ensuring that the flap is held in place are replaced by a
In another particular embodiment with a partial toothing instead of the maltese cross system described above, the first drive means 31 comprise an
More particularly, fig. 19 and 20 show a variant of this embodiment comprising partial teeth. This variant is shown for one particular non-limiting case of a solution, in which there are 5 fixed positions, comprising two variable flaps 20B and 20E with two faces, and without a maltese cross.
The drive pinion (not shown) of the
The
The
The drive means 53, here comprising teeth, preferably in combination with the
Thus, the four-tooth star wheel 71 pivoting on the plate is set to rotate 1/4 revolutions per day, except for two days per week. In the illustrated example, once the star wheel 71 has pivoted from monday to tuesday, it remains in its position on tuesday and wednesday until changing position between tuesday and thursday. Similarly, when the star wheel 71 has pivoted from friday to saturday, it remains in its position on saturday and sunday before changing position between sunday and monday. Flap 20B will show the first position on tuesday, will pivot 180 deg. from tuesday to wednesday, and will show the second position on wednesday. Similarly, flap 20E will show the first position on Saturday, will pivot 180 from Saturday to Sunday, and will show the second position on Sunday. On other days, the user will see a fixed display at the periphery of the scroll wheel 20: 20A on Monday, 20C on Thursday, and 20D on Friday.
This four-tooth star wheel 71 carries a
Thus, the four-tooth star wheel 71 drives the
On the other two days, the four-tooth star wheel 71 remains resting on the
The
Like the main wheel, the main flap drive wheel 63 rotates 1/7 turns per day.
The flap pinion carries flaps 20B and 20E having two faces and meshes with the main flap drive wheel 63 at a rate of 3.5.
Thus, when the
When the
Fig. 22 to 26 schematically show a variant of the leap year display 400. This leap year display 400 can be realized with one or more hands, in particular but not exclusively with a three-
Fig. 27 shows another variant of retaining
Similarly, in a variation of the flap without a jumper spring, the flap may be guided directly by the outer circumference in contact with the actual flap. In this way, the guiding circumference is interrupted to allow the passage of the flap. The drive pinion can thus have the configuration of the variant of fig. 7 to 11 or of the variant of fig. 17 and 18.
The different variants of the invention make it possible to make a roller display device for all types of indications in the reduced volume of a watch of conventional dimensions, in particular a total thickness of about 10mm on the outside of the watch mirror or of the watch mirror and back cover. The flaps do not come into contact with any part of the watch and do not undergo any impact or friction during their normal operation.
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