EP1046965B1 - Self-winding watch - Google Patents

Self-winding watch Download PDF

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Publication number
EP1046965B1
EP1046965B1 EP19990810342 EP99810342A EP1046965B1 EP 1046965 B1 EP1046965 B1 EP 1046965B1 EP 19990810342 EP19990810342 EP 19990810342 EP 99810342 A EP99810342 A EP 99810342A EP 1046965 B1 EP1046965 B1 EP 1046965B1
Authority
EP
European Patent Office
Prior art keywords
pinions
watch
central part
integral
self
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP19990810342
Other languages
German (de)
French (fr)
Other versions
EP1046965A1 (en
Inventor
Jacques Gabathuler
Cédric Jacot
Christophe Lyner
David Nicolet
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Montres Rolex SA
Original Assignee
Montres Rolex SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Montres Rolex SA filed Critical Montres Rolex SA
Priority to EP19990810342 priority Critical patent/EP1046965B1/en
Publication of EP1046965A1 publication Critical patent/EP1046965A1/en
Application granted granted Critical
Publication of EP1046965B1 publication Critical patent/EP1046965B1/en
Anticipated expiration legal-status Critical
Application status is Expired - Lifetime legal-status Critical

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    • GPHYSICS
    • G04HOROLOGY
    • G04BMECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B5/00Automatic winding up
    • G04B5/02Automatic winding up by self-winding caused by the movement of the watch
    • G04B5/10Automatic winding up by self-winding caused by the movement of the watch by oscillating weights the movement of which is not limited
    • G04B5/14Automatic winding up by self-winding caused by the movement of the watch by oscillating weights the movement of which is not limited acting in both directions

Description

The present invention relates to a winding watch automatic, including an automatic winding weight, having a central part surrounded by paths of rolling a ball bearing, one of which is integral of said central part and the other is integral positioning means and removable attachment to the frame of the watch, a train of reducing gears to connect this mass of automatic winding to a barrel shaft and a reversing mechanism, to transform the movement of bidirectional rotation of said automatic winding weight in a unidirectional rotational movement, transmitted to said barrel tree.

A watch of this type has already been proposed in the CH 1237-1269. This watch has a double clutch mechanism unidirectional formed by two stressed discs each by an eccentric force exerted by a driving finger so that each disc is locked against the surface interior of a drum secured to the oscillating weight in one direction of rotation and slides in the other direction of rotation, the two discs working in opposite direction one the other. These driving fingers are integral with two independent coaxial gears meshing with the cog of reassembly of the barrel. Such a mechanism is relatively complex and delicate, especially for a small caliber such than a ladies' caliber.

Most automatic winding mechanisms are provided with a reversing mechanism to allow turn the barrel shaft, integral with the internal end of the barrel spring, in the winding direction of this spring, whatever the direction of rotation of the mass of automatic winding. Without such a reversing mechanism, the half of the angular movements of the winding weight automatic is indeed lost, thus requiring double of movement of the automatic winding weight for the same degree of winding of the barrel spring.

The problem with reversing mechanisms is the size, both on the surface and in height, whatever system you choose. It is quite obvious that this problem is all the more difficult to solve since the diameter of the movement is small. When the mechanism reverser is located at the start of the kinematic chain connecting the mass of automatic winding to the barrel shaft, we moreover finds itself with the problem of an accumulation of organs mounted pivoting around the central axis of the movement and therefore an increase in thickness thereof. This problem is also all the more troublesome since the diameter of the movement is small.

A typical example of this accumulation of mobiles at center of movement is illustrated for example in CH-363 298, in which, in addition to the indicator cog of the watch necessarily placed in the center of the movement, we must add a bridge for fixing the mass pivot shaft of automatic winding, the board of this mass of automatic winding pivotally mounted on this shaft, and two inverters between this bridge and this ground board of automatic winding, unidirectional drive system of each of these inverters, as well as the spaces necessary between these different superimposed elements to allow them to rotate around this same pivot axis.

Among the many solutions proposed to solve space problems, we have already used, in the CH-329 448, the automatic winding weight to accommodate the reversing mechanism. The downside of such a solution is to reduce the inertia of this mass, since it must be hollowed out to house this mechanism which has a large proportion empty. Therefore, we reduce the torque which can be transmitted to the barrel spring to arm it.

According to other solutions CH-308 939 and CH-308 940, the reversing mechanism is mounted coaxially on the axis of barrel. However, the volume which can thus be subtracted from the barrel to accommodate the mainspring, reduces energy likely to be stored in it.

The object of the present invention is to remedy, less in part, to the various drawbacks mentioned above, in in particular reducing the size of the winding mechanism automatic and allowing more rational use of space, especially at the center of the movement.

For this purpose, this invention relates to a watch with automatic winding as defined in the claim 1.

One of the main advantages of this invention is to use a large diameter ball bearing, allowing to provide a substantial volume in the center of the movement to accommodate the reversing mechanism. The space gained at the center of the movement does not require increasing the movement height, since the raceways of the ball bearing, used for pivoting the mass of automatic winding on the watch frame, surround the reversing mechanism and can therefore occur naturally on the same level as him. This provision therefore allows space saving in height, since it avoids overlapping above.

Thanks to this arrangement, the central part of the frame of the watch is no longer occupied by the pivoting members of the automatic winding weight which are distant outward, although its pivot axis coincides with the center of the movement and that the diameter of this mass therefore remains maximum. The gears of the reversing mechanism and therefore those who drive the gear train, can therefore have a small diameter, since the central part of the movement is thus released and that these gables are inside and no longer outside of the ball bearing. Having drive sprockets small diameter gear train allows to reduce the number of mobiles in the reduction gear train, since these gables already constitute a first stage of reduction. The fact that inverters are integral with the oscillating mass also allows limit the blind spot, when reversing the direction of rotation of the automatic winding weight, to that of reverse gears.

Thanks to the central position of the double reverser and the small diameter of the drive sprockets which are united, the gear train can also occupy a relatively clustered position around the center of the movement and thus leave the periphery free for mass automatic winding. The couple that can be transmitted by this is indeed a function of its inertia and, by consequently, of the mass which is located far from its axis of pivoting.

The present invention therefore saves space also in plan, thanks to the grouping of the cog in the center and the reduced number of mobiles in the gear train.

Other advantages will become apparent during the description which follows, relating to an embodiment of a self-winding watch which is the subject of the present invention, given by way of example and illustrated with the aid of the schematic drawing appended in which,

  • Figure 1 is a perspective view of part of the watch frame with the automatic winding weight;
  • Figure 2 is a partial sectional view along line II-II of Figure 1;
  • Figure 3 is a perspective view of the central part of the automatic mass;
  • Figure 4 is a plan view illustrating the position of the wheels of the winding train on the frame.
  • Only the parts relating to the winding mechanism automatic watch are illustrated, the rest of the mechanism of the watch is not necessary for understanding of the present invention.

    This winding mechanism includes a winding mass automatic formed of two parts, one central 2 to which an external part 1 in the general shape of a semicircle is fixed. To this end, the external part 1 presents a central opening 1a, engaged on an annular bearing 2a of the central part 2 (Figure 2). An annular face oblique delimits, with the bearing 2a, a projection 2b. This oblique face of the projection 2b serves as a bearing surface for allow to create, using an appropriate tool, a centripetal deformation on the surface 2a on which the opening 1a is adjusted, thus making it possible to fix one to the other the two parts 1 and 2 forming the winding weight automatic.

    As illustrated in Figure 2, a ball bearing 3 is provided around the central part 2. A path of internal bearing 3a is provided, on the one hand at the periphery of this central part 2, on the other hand at the periphery of a ring 4 driven out on a cylindrical portion 2c of the central part 2 and used to retain a bearing ring 3c. An external raceway 3b is provided in an opening of an annular positioning member 5 and fixing to a bridge 6 of the watch frame, provided with a cylindrical opening 6a (Figure 2) to receive a surface cylindrical complementary 5th of the annular member 5.

    These complementary cylindrical surfaces 5e, 6a, are used to position the automatic winding weight 1, 2 concentrically in the center of the watch frame. The organ ring 5 still has at least two fixing lugs diametrically opposed 5a, 5b (Figure 3), which extend to the outside of its cylindrical surface 5e. These legs fixing 5a, 5b are crossed by openings 5c, 5d surrounded by respective screw grooves, to allow fix these tabs 5a, 5b to the bridge 6 of the watch frame (Figure 1) by means of screws 22, one of which is visible on the figure 2.

    A tubular portion 2d is formed concentrically with the axis of rotation of the central part 2 of the mass of automatic winding and extends downwards. A first inverter 7 is arranged in a 2nd groove (FIG. 3) formed concentrically with the pivot axis of this mass of automatic winding, on the upper side of the part central 2. This first inverter 7 (FIG. 2) has a tubular pivoting part 7a, engaged in the passage cylindrical of the tubular portion 2d which serves as bearing.

    A second inverter 8, integral with a pinion 9, is engaged from below on the external cylindrical surface of the tubular portion 2d which serves as its bearing. A pinion 10, integral with a threaded rod 10a, is screwed from underneath inside the tubular part of the first reverser 7, having a thread 7b complementary to the rod thread 10a. This assembly allows to join this pinion 10 with this reverser 7 and to retain axially the reverser 8 and the pinion 9 on the tubular element 2d, while leaving them free to rotate.

    Each reverser 7, 8 is engaged with a pinion satellite 11, respectively 12, pivotally mounted on a post 13, respectively 14. These tenons 13, 14 are driven out from the top, respectively from below the part central 2 of the winding weight. As we can note in Figures 3 and 4, the teeth of each satellite pinion 11, 12 has a shape which does not allow, each satellite reverser-pinion system 7, 11; 8, 12 of ne rotate that in one direction, the rotation of the respective satellites 11, 12 in the opposite direction, causing the blocking of respective inverters 7, 8, which thus become integral in rotation of the winding weight 1, 2.

    The two inverters 7, 8 and their respective satellites 11, 12 are mounted coaxially with the pivot axis of the self-winding weight, but their pivot axes respective are sort of turned 180 ° one compared to each other. In other words, one of the systems inverters, comprising the inverter 7 and its satellite 11, mounted on the upper face of the central part 2, present mirror symmetry with respect to the other system inverter comprising the inverter 8 and its satellite 12, mounted on the underside of the central part 2. By therefore, their respective relative rotations are reversed with respect to the common axis of rotation, when observes them from the same side of the automatic winding weight.

    Therefore, since the pivot axes of the satellites 11, 12 are constantly attached to the mass of automatic winding 1, 2, when these block the inverters 7, respectively 8, they make them integral in rotation of this winding mass 1, 2 and allow them therefore to transmit the rotation of the latter. Conversely, the inverters 7, 8 are free with respect to to winding weight 1, 2 and therefore do not transmit any movement. However, since the two inverters work in reverse of each other, so there are always one which transmits the rotation of the winding weight automatic.

    This transmission of rotation and therefore of torque winding weight motor, is carried out by the pinions 9, 10 integral with the reversers 8, respectively 7. Therefore, these pinions 9, 10 rotating, like the inverters 8, 7, in two opposite directions, it is necessary that each of them be engaged with two different mobiles of the train reducing gears, themselves turning in opposite directions one of the other.

    This is how the pinion 9, integral with the reverser 8 is engaged with a first mobile 15 of the gear train reducers, while the pinion 10, integral with the reverser 7 is engaged with a second mobile 16 of the same reducing gear train. The first mobile 15 is in taken with this second mobile 16 via a pinion 15a. A third mobile 17 meshes with a pinion 16a of the second mobile and its pinion 17a finally meshes with a barrel ratchet 18 secured to the axis 19 of the barrel to which the internal end of the spring is fixed barrel (not shown). As in all watches, this ratchet 18 cooperates with a pawl 20 urged by a spring 21, which allows it to rotate only in the direction of reinforcement of the barrel spring.

    The self-winding weight 1, 2 therefore carries its center two pinions 9, 10 whose diameters can be small since the pivoting of the mass is around the central part 2 carrying the reversing mechanism. This allows to have a reduction directly to from winding weight 1, 2 and back and forth rotation thereof.

    The reversing mechanism forms a single module, mounted on the central part 2 of the automatic winding weight. So to remove it, unscrew the two screws which fix the tabs 5a, 5b of the annular fixing member 5 to frame 6 of the watch. This allows very easy access to this mechanism for cleaning, lubricating and for carry out control operations.

    As we have already noticed, when the pinions 9, 10 transmit the torque of the winding weight to the gear train, they are united in rotation of the winding weight and do not rotate so not on their swivels. The yield is therefore excellent since it is not reduced by friction forces resulting from pivoting.

    The two satellites 11, 12 being identical, there is no no risk of error between the one above and below. Their pivoting on tenons 13, 14 does not generate cantilevered. The fixing by these chased tenons removes the risk of losing these small satellite gears 11, 12.

    Unlike some reversing mechanisms in which the reverse gears are engaged with teeth interiors which can only be cut by cutting, cutting the teeth of the entire mechanism can be obtained by generation. This allows to realize finer teeth than by cutting. Cutting per generation is more precise than cutting, as well from the point of view of the regularity of the profile of the teeth that of wheel diameter. It also gives a better state of tooth surface. Manufacturing tolerances can therefore be reduced, thereby increasing the range in which the reversing system can work properly.

    Blind spots when changing direction of rotation of the automatic winding weight 1, 2 are directly those of the planet gears and can be adjusted in particular by the pitch chosen for the teeth, or by the number of satellites 11, 12 working with inverters 7 and 8.

    Claims (7)

    1. A self-winding watch, comprising a self-winding mass (1, 2) having a central part (2) surrounded by raceways (3a, 3b) of a ball bearing (3), one (3a) of which is integral with said central part (2) and the other (3b) of which is integral with means for positioning and for removably fastening (5-5e) to the watch's frame (6), a reduction gear train (15-18) for connecting this self-winding mass (1, 2) to a barrel arbor (19) and a reversing mechanism (7-12) in order to convert the two-directional rotational movement of said self-winding mass (1, 2) into a one-directional rotational movement, transmitted to said barrel arbor (19), wherein two first pinions (7, 8) of said reversing mechanism are freely pivoted, concentrically with said central part (2), each of these first pinions (7, 8) meshing with a planet pinion (11, 12), the pivot pin of which is integral with said central part (2) and the toothing of which is shaped so as to allow only unidirectional rotations of said first pinions (7, 8) in two opposed respective directions and so as to make said first pinions integral with said central part (2) in the other opposed respective directions of rotation, these first pinions (7, 8) being integral with two second respective pinions (10, 9) meshing with two respective. moving parts (15, 16) of said gear train, the directions of rotation of which are opposite, one with respect to the other.
    2. The watch as claimed in claim 1, wherein said central part (2) of the self-winding mass includes a tubular portion (2d), the internal surface of which serves as a pivoting surface for one of said first pinions (7) of said reversing mechanism and the external surface of which serves as a pivoting surface for the other of said first pinions (8) of this reversing mechanism.
    3. The watch as claimed in claim 2, wherein that one of said first pinions (7) which is mounted so as to pivot inside the tubular portion (2d) of said central part (2) includes two toothed members (7, 10) integral with the two respective ends of a member (7a) mounted so as to pivot inside said tubular portion (2d), one (10) of these toothed members serving as an axial stop for the second of said first pinions (8) which is mounted so as to pivot about said tubular portion (2d).
    4. The watch as claimed in claim 3, wherein said toothed members (7, 10) of said first pinion which is mounted so as to pivot inside said tubular portion (2d) are integral with two respective complementary threads serving to make them mutually integral by one screwing into the other.
    5. The watch as claimed in one of the preceding claims, wherein said central part (2) of the self-winding mass has an annular projection (2b) and its external part (1) has an opening (1a) fitted around said annular projection (2b), the fastening of these two parts (1, 2) to each other resulting from the centripetal deformation of said annular projection (2b), that portion of said external part (1) which surrounds this annular projection (2a, 2b) covering the raceways (3a, 3b) of said ball bearing (3).
    6. The watch as claimed in one of the preceding claims, wherein each of said first pinions (7, 8) meshes with a planet pinion (11, 12), the toothing of which is shaped so as to allow it to rotate with its first respective pinion (7, 8) only in one direction and so that one of the reversing systems, which is formed by a first pinion and its planet (7, 11), is mounted on said central part (2) in mirror symmetry with respect to the other of the reversing systems (8, 12) so that their respective relative directions of rotation about the common axis of rotation are the reverse of each other.
    7. The watch as claimed in one of the preceding claims, wherein said means for positioning said raceway (3b) include two cylindrical complementary centering surfaces (5e, 6a) and wherein the fastening means include at least two tabs (5a, 5b) which extend outside said cylindrical centering surfaces (5e, 6a) and are provided with openings (5c, 5d) for fastening screws.
    EP19990810342 1999-04-23 1999-04-23 Self-winding watch Expired - Lifetime EP1046965B1 (en)

    Priority Applications (1)

    Application Number Priority Date Filing Date Title
    EP19990810342 EP1046965B1 (en) 1999-04-23 1999-04-23 Self-winding watch

    Applications Claiming Priority (4)

    Application Number Priority Date Filing Date Title
    EP19990810342 EP1046965B1 (en) 1999-04-23 1999-04-23 Self-winding watch
    DE69919509T DE69919509T2 (en) 1999-04-23 1999-04-23 Clockwork with inertia self-winding
    US09/542,077 US6409379B1 (en) 1999-04-23 2000-04-03 Self-winding watch
    JP2000127671A JP4047516B2 (en) 1999-04-23 2000-04-24 Automatic clock

    Publications (2)

    Publication Number Publication Date
    EP1046965A1 EP1046965A1 (en) 2000-10-25
    EP1046965B1 true EP1046965B1 (en) 2004-08-18

    Family

    ID=8242788

    Family Applications (1)

    Application Number Title Priority Date Filing Date
    EP19990810342 Expired - Lifetime EP1046965B1 (en) 1999-04-23 1999-04-23 Self-winding watch

    Country Status (4)

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    US (1) US6409379B1 (en)
    EP (1) EP1046965B1 (en)
    JP (1) JP4047516B2 (en)
    DE (1) DE69919509T2 (en)

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    US9446319B2 (en) 2003-03-25 2016-09-20 Mq Gaming, Llc Interactive gaming toy
    US7445550B2 (en) 2000-02-22 2008-11-04 Creative Kingdoms, Llc Magical wand and interactive play experience
    US7878905B2 (en) 2000-02-22 2011-02-01 Creative Kingdoms, Llc Multi-layered interactive play experience
    US7500917B2 (en) * 2000-02-22 2009-03-10 Creative Kingdoms, Llc Magical wand and interactive play experience
    US6761637B2 (en) 2000-02-22 2004-07-13 Creative Kingdoms, Llc Method of game play using RFID tracking device
    DE60038282T2 (en) * 2000-03-17 2009-03-12 Dubois & Depraz S.A. Transmission mechanism for rotary motion and axial movement between two staggered axes
    US7066781B2 (en) 2000-10-20 2006-06-27 Denise Chapman Weston Children's toy with wireless tag/transponder
    US7614958B2 (en) * 2001-11-16 2009-11-10 Creative Kingdoms, Llc Interactive quest game
    US20040033833A1 (en) * 2002-03-25 2004-02-19 Briggs Rick A. Interactive redemption game
    US20070066396A1 (en) 2002-04-05 2007-03-22 Denise Chapman Weston Retail methods for providing an interactive product to a consumer
    US6967566B2 (en) * 2002-04-05 2005-11-22 Creative Kingdoms, Llc Live-action interactive adventure game
    US7674184B2 (en) * 2002-08-01 2010-03-09 Creative Kingdoms, Llc Interactive water attraction and quest game
    US7029400B2 (en) * 2002-08-01 2006-04-18 Creative Kingdoms, Llc Interactive water attraction and quest game
    CH696705A5 (en) * 2002-08-29 2007-10-15 Seiko Instr Inc Bearings and watch with automatic winding.
    EP1445668B1 (en) * 2003-02-04 2009-07-15 Vaucher Manufacture Fleurier SA Oscillating weight
    KR101140681B1 (en) 2005-03-21 2012-04-25 엘지전자 주식회사 A mobile communication terminal having a function of converting call receiving mode and the method thereof
    DE602006007807D1 (en) * 2006-04-07 2009-08-27 Eta Sa Mft Horlogere Suisse Mechanical changer for rotating a wheel from a single direction
    CN101443088B (en) * 2006-04-14 2012-04-18 美国创意王国公司 Interactive waterplay apparatus and methods
    US8330587B2 (en) * 2007-07-05 2012-12-11 Tod Anthony Kupstas Method and system for the implementation of identification data devices in theme parks
    CN101446799B (en) * 2009-01-09 2010-11-24 天津海鸥表业集团有限公司 A tourbillon mechanical wristwatch with simultaneous rotation and revolution
    ES2423285T3 (en) * 2009-03-03 2013-09-19 Montres Jaquet Droz Sa Clutch release mechanism for clockwork, and clock movement comprising this device
    CH701883A1 (en) * 2009-09-24 2011-03-31 Mps Micro Prec Systems Ag Coupling device.
    CH702590B1 (en) 2010-01-26 2015-03-13 Mps Micro Prec Systems Ag automatic winding system.
    EP2466397B1 (en) * 2010-12-20 2013-08-21 Blancpain S.A. Rotating clock component with peripheral guide
    EP2897000B1 (en) * 2014-01-15 2017-02-01 Audemars Piguet (Renaud et Papi) SA Reverser for timepiece
    CH709348A1 (en) * 2014-03-10 2015-09-15 Hl Technology Sa ball bearing type with four points of contact and method of manufacturing such a bearing.
    EP3032347B1 (en) * 2014-12-10 2017-06-14 Montres Breguet S.A. Mechanical winding device for a watch
    EP3104232B1 (en) 2015-06-11 2017-11-29 Société anonyme de la Manufacture d'Horlogerie Audemars Piguet & Cie Timepiece reverser and self-winding watch comprising same

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    Also Published As

    Publication number Publication date
    EP1046965A1 (en) 2000-10-25
    US6409379B1 (en) 2002-06-25
    JP2000321370A (en) 2000-11-24
    DE69919509D1 (en) 2004-09-23
    JP4047516B2 (en) 2008-02-13
    DE69919509T2 (en) 2005-09-01

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