EP3798743A1 - Uhr-anzeigemechanismus mit mehrspuriger führung - Google Patents

Uhr-anzeigemechanismus mit mehrspuriger führung Download PDF

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Publication number
EP3798743A1
EP3798743A1 EP19199580.2A EP19199580A EP3798743A1 EP 3798743 A1 EP3798743 A1 EP 3798743A1 EP 19199580 A EP19199580 A EP 19199580A EP 3798743 A1 EP3798743 A1 EP 3798743A1
Authority
EP
European Patent Office
Prior art keywords
trajectory
drive
display mechanism
fork
mobile
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.)
Granted
Application number
EP19199580.2A
Other languages
English (en)
French (fr)
Other versions
EP3798743B1 (de
Inventor
Steven DENOREAZ
Cédric Reymond
Alain Delizee
Robin Rusterholz
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.)
Blancpain SA
Original Assignee
Blancpain 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 Blancpain SA filed Critical Blancpain SA
Priority to EP19199580.2A priority Critical patent/EP3798743B1/de
Publication of EP3798743A1 publication Critical patent/EP3798743A1/de
Application granted granted Critical
Publication of EP3798743B1 publication Critical patent/EP3798743B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • G—PHYSICS
    • G04—HOROLOGY
    • G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B47/00—Time-pieces combined with other articles which do not interfere with the running or the time-keeping of the time-piece
    • G04B47/04—Time-pieces combined with other articles which do not interfere with the running or the time-keeping of the time-piece with attached ornaments or amusement apparatus
    • G04B47/044—Movable decorations and parts thereof
    • G—PHYSICS
    • G04—HOROLOGY
    • G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B45/00—Time pieces of which the indicating means or cases provoke special effects, e.g. aesthetic effects
    • G04B45/0023—Inscriptions or pictures moved by the clockwork, e.g. for advertising

Definitions

  • the invention relates to a clockwork display mechanism, comprising a first drive wheel set arranged to be driven by a clockwork movement or by a drive mechanism, said first drive wheel set comprising first drive means.
  • drives arranged to advance a traveling trolley carrying a display along at least part of a first path defined by first guide means arranged to cooperate in a complementary manner with complementary guide means that said traveling trolley comprises.
  • the invention also relates to a timepiece movement comprising at least one such display mechanism.
  • the invention also relates to a watch comprising such a movement, and / or at least one such display mechanism.
  • the invention relates to the field of clockwork display mechanisms, and in particular complication display mechanisms, in particular for watches.
  • the display function in watchmaking is essential because it defines the appearance of the watch, personalizes it, and has a strong influence on the purchase decision.
  • Concentric disc displays are known, which are readable, at least as long as there are few time values to be displayed, for example hour and minute; the situation becomes more complicated when considering three or more separate displays, due to the readability which decreases as the number of discs increases.
  • the invention proposes to provide an original display which remains very readable, and which allows high customization, in particular due to forms or particular arrangements specific to a given watch brand, by running a very readable display along a trajectory of particular shape.
  • This trajectory can be complex, and be traversed by the display in different directions, on different portions of the total trajectory.
  • the invention relates to a clock display mechanism, according to claim 1.
  • the invention also relates to a timepiece movement comprising at least one such display mechanism.
  • the invention also relates to a watch comprising such a movement, and / or at least one such display mechanism.
  • the invention relates to a clockwork display mechanism 1, designed to produce a complex display by allowing at least one moving body to travel on a plurality of elementary tracks, together constituting end to end an overall track, which this mechanism comprises. display 1.
  • the display mechanism 1 conventionally comprises a first driving wheel 2, which is arranged to be driven by a clockwork movement or by a drive mechanism.
  • This first drive mobile 2 comprises first drive means 3, which are arranged to move a traveling trolley 4 carrying a display 5 along at least part of a first path T1 defined by first guide means. 6.
  • first guide means 6 are arranged to cooperate in a complementary manner with complementary guide means 7 which the traveling trolley 4.
  • complementary guide means 7 can be constituted by a suitably shaped end of a shaft 41 which the traveling trolley 4 comprises, or, as visible on the figure. figure 2 , by guide rollers 42, 43, mounted to rotate freely on this sliding carriage 4, or the like.
  • This walking trolley 4 is designed to drive or to carry a display 5. In the non-limiting variant illustrated by the figures, the walking trolley 4 directly carries such a display 5.
  • the display mechanism 1 comprises at least one second drive wheel 20, which is arranged to be driven by the first drive wheel 2, or by a clockwork movement or by a drive mechanism.
  • this second drive mobile 20 comprises second drive means 30, which are arranged to move a traveling carriage, and in particular the traveling carriage 4, according to at least part of it. 'a second trajectory T2 defined by second guide means 60.
  • These second guide means 60 are arranged to cooperate in a complementary manner with complementary guide means of a traveling carriage, and in particular with the complementary guide means 7 of the traveling carriage 4.
  • the second trajectory T2 is secant or tangent at at least one point with the first trajectory T1.
  • the figures illustrate an application where the traveling trolley 4 travels successively over all or part of the first trajectory T1, and over all or part of the second trajectory T2.
  • the first drive means 3, and the second drive means 30, each comprise at least one resilient blade 31, respectively 310, which is arranged to hold a shaft 41 which is included in the traveling carriage 4, without play, when the traveling carriage 4 travels on only one of the first trajectory T1 and second trajectory T2.
  • This at least one blade elastic 31, 310 is also arranged to allow the release of this shaft 41, for a transfer of the traveling trolley 4 from the first path T1 to the second path T2, or vice versa, at a junction zone T0 constituting the interface between the first trajectory T1 and the second trajectory T2.
  • the figures 1 to 4 illustrate, in a nonlimiting manner, an example in which such a traveling trolley 4 is driven along a predefined trajectory in the shape of an eight: this eight constitutes the overall track, which results from the juxtaposition in external tangency, at the junction zone T0, of a first substantially circular track T1, which comprises the first guide means 6, and of a second substantially circular track T2, which comprises the second guide means 60.
  • These first guide means 6 and second guide means 60 may in particular include at least one guide groove machined in a plate 900 or a bridge, as visible in the figures or at least one projecting rail, integrated or attached to this plate or this bridge, or even a combination of such rails and / or grooves.
  • the first drive means 3, and / or the second drive means 30, comprise a fork comprising at least one elastic blade 31, 310.
  • the fork illustrated by the figures comprises a first lip 32 and a second lip 33 integral with the drive mobile 2, 20, concerned, and between which extends an elastic blade 31, 310, separated from the lips by cutouts 34, 35; this elastic blade 31, 310, may be integral with the drive mobile 2 as in the figures, or be attached, such as a leaf spring fixed in cantilever on the drive mobile 2, 20.
  • One of the lips 32, 33 comprises a first bearing spout 37, arranged to clamp the shaft 41 of the traveling trolley 4 like a pliers, in cooperation with a second bearing spout 36 which the elastic blade 31, 310 comprises. at its distal end.
  • the bearing lip of the first bearing spout 37 advantageously comprises at least one boss 38, arranged to limit the angular travel of the elastic blade 31, 310.
  • the elasticity of the elastic blade 31, 310 is sufficient to allow angular travel. allowing the shaft 41 to escape this fork, when it arrives in the junction zone T0, and when it is transferred to an antagonistic fork.
  • the mechanism in fact comprises two such forks with elastic blades, rotating in the opposite direction, one fixed to the first drive mobile. 2, the other to the second drive mobile 20.
  • the shaft 41 of the sliding carriage 4 is gripped by one of the forks during its travel on one of the paths T1, T2, and is pressed against the outside of the guide groove. corresponding, thanks to the vee shape of the fork, and is driven by the latter.
  • the two forks are synchronized so as to be superimposed at the level of the junction zone T0, when the traveling trolley 4 has finished its travel on one of the trajectories, here a rotation according to a circle, and returns to the junction zone T0 between the first trajectory T1 to the second trajectory T2, for example at the center of the movement as illustrated.
  • the shaft 41 of the traveling trolley 4 is transferred from one fork to another, thanks to a transfer mechanism with a slide system which will be exposed later, and can then be driven by the second fork for its race on the second trajectory T2, here a turn of a second circle.
  • the figure 3 shows the mechanism just after the transfer, when the fork of the second drive mobile 20 clamps the shaft 41 of the traveling carriage 4, with the fork of the first drive mobile 2 which is empty and has just released this shaft 41; we see on this figure 3 , on the traveling carriage 4, a slide 8 which is movable substantially in the direction of tangency, in a junction zone T0, between the first trajectory T1 and the second trajectory T2, and which comprises a cam track 9 intended to guide the additional guide means 7 included in the traveling trolley 4, for its change of track and for allowing it to travel on the new trajectory.
  • the figure 4 illustrates the reverse synchronization of the first drive wheel 2, carried by a first drive wheel 39, and the second drive wheel 20, carried by a second drive wheel 390, through a reverse gear train 300.
  • this gear can be arranged with an adequate reduction in order to manage the cooperation of different trajectories T1 and T2, for example with an overall eight-way trajectory resulting from the cooperation of a small circle with a larger circle.
  • This mechanism thus authorizes the drive of a transmissible element, here the traveling trolley 4, it allows the transfer of this element, and ensures the stability of this traveling trolley 4.
  • the invention also relates to a mechanism 100 for positioning and guiding the positioning and adjustment of a mobile timepiece component 8 in a reciprocating movement along a limited stroke, along a path imposed by means. guide, relative to a fixed structure 200 of a timepiece, such as a plate 900, a bridge, or the like.
  • This positioning and guiding mechanism 100 is advantageously combined with such a display mechanism 1, and in particular constitutes a transfer mechanism for changing the track of the traveling trolley 4.
  • the positioning and guiding mechanism 100 comprises a first roller 101, which is fixed indirectly to the structure 200, with limited mobility with respect to the structure 200, and which is arranged to roll on a rolling track 80 that the component comprises. 8.
  • This rolling track 80 comprises at least a first re-entrant or protruding relief 81, which is arranged to define with the first roller 101 a first mechanical limit switch.
  • the positioning and guiding mechanism 100 further comprises at least one second roller 102, which is indirectly fixed to the structure 200 with limited mobility with respect to the structure 200 and which is arranged to roll on a rolling track 80 that the component 8 comprises, which rolling track 80 comprises at least one second relief 82 re-entering or projecting arranged to define with the second roller 102 a second mechanical limit switch.
  • the first roller 101 and the second roller 102 roll on a common rolling track 80.
  • first roller 101 and the second roller 102 roll on separate tracks 80.
  • the travel of the first roller 101 and that of the second roller 102 are adjustable independently with respect to the structure 200.
  • first roller 101 and / or the second roller 102 is subjected to the action of elastic return means 201, 202, tending to bring it to bear on the rolling track 80.
  • first roller 101 and the second roller 102 are subjected to elastic return means 201, 202, which tend to exert on component 8 torques in opposite directions.
  • Component 8 advantageously comprises at least one notch 81, 82, arranged to block a roller 101, 102, at the end of travel, in order to precisely position this component 8 in the end of travel position.
  • the first roller 101 and / or the second roller 102 is carried by a rocker 105, 106, which is adjustable by an eccentric 111, 112, relative to the structure 200, as visible on the figures. figures 5 and 9 .
  • the rocker 105 or 106 is held in place by an intermediate plate 103, 104, which covers it. It is thus easy to very precisely adjust the end-of-travel position of the mobile 8.
  • the end 107, 108, of the rocker 105, 106, opposite the first roller 101, respectively second roller 102 comprises a bearing boss d 'at least one spring constituting the elastic return means 201, 202.
  • component 8 is a slide comprising a rack 83 for its drive.
  • component 8 is guided in a plane movement, on a side opposite to the rolling track 80 by at least one guide and support surface 89.
  • the travel of the mobile 8 is rectilinear.
  • the slide 8 comprises, on either side, two notches 81, 82, or notches, made in the form of a vee.
  • a rocker 105, 106 guided on an eccentric 111, 112, and provided with a first roller 101, respectively second roller 102, free and pivoting.
  • the first roller 101 and the second roller 102 of the levers 105, 106 roll on a smooth surface 80 of the slide 8, in order to reduce the necessary torque take-up, and at the end of the stroke, the first roller 101 or the second roller 102 of the rocker concerned 105 or 106 falls into the vee-shaped notch 81 or 82 of the slide 8, positioning the latter precisely.
  • the position of the rocker 105, 106 can be adjusted by its pivoting on the eccentric 111, 112, by placing a screwdriver in the notch of the latter. In this way, the positioning of the slide 8 at the end of the stroke is adjustable from one room to another.
  • This positioning and guiding mechanism 100 thus ensures precise positioning of a mobile component, allows fine adjustment of the positioning, piece by piece, in the two start and end positions, finally the torque taking is reduced thanks to the swivel rollers.
  • the second trajectory T2 is secant or tangent at at least one point with the first trajectory T1.
  • the display mechanism 1 comprises a slide 8, which is movable in a housing 90 of the plate or the like, this housing 90 is a straight groove in the figures.
  • This slide 8 is driven by the first drive wheel 2 or / and by the second drive wheel 20, or by a clockwork movement 1000 or by a drive mechanism 800, as visible on the figures.
  • figures 11 to 13 and comprises at least one transfer guide means 9 arranged to guide, at at least one point of tangency, the traveling carriage 4 to pass from the first trajectory T1 to the second trajectory T2 or vice versa.
  • This transfer guide means 9 is more particularly produced in the form of a cam track, the figures 10 and 11 show that this cam track comprises a first channel 91 for making the traveling carriage 4 pass from the trajectory T1 to the trajectory T2, and a second channel 92 to perform the reverse maneuver.
  • the slide 8 thus moves, to make it possible to change the trajectory of the traveling trolley 4, as can be seen on the figure. figure 10 .
  • a second drive wheel 390 of the second drive wheel 20 rotates and transmits its rotation, in particular to a gear wheel unit 52, to rotate a second transfer wheel 209, assembled with a second cam 53 ..
  • a rocker is constituted by a pivoting rake 55, provided with two feelers 56 and 57, and which is driven, on one side by the second cam 53, and which drives, by a toothed sector 59 which it comprises, the pinion 87 of a mobile driving device 88 which allows the displacement of the slide 8 by means of a rack 83, and on the other side by a first cam 54, integral with a first transfer wheel 29, and of complementary shape to the second cam 53, thus leaving a clearance of a few hundredths of a millimeter of freedom to the rake 55.
  • the first transfer wheel 29 is driven in the same direction as the second transfer wheel 209 via a synchronization wheel 51.
  • the slope of the second cam 53 drives the rake 55
  • the first cam 54 makes it possible to limit the movement of the rake 55
  • the second cam 53 then serving, in turn, to limit the movement of the rake 55.
  • the second cam 53 could also be integral with another mobile than the second drive wheel 390 of the second drive mobile 20, and the first cam 54 integral with a mobile other than the synchronization wheel 51.
  • This synchronization wheel 51 can be one of the moving parts of the reverse gear train 300, to save volume in the movement 1000.
  • This system allows the change of trajectory or the change of display of an element, without rotation, in a linear manner.
  • the invention also relates to a timepiece movement 1000 comprising at least one such mechanism 100 for positioning and guiding positioning and adjustment, and / or at least one such display mechanism 1.
  • the invention also relates to a timepiece, in particular a watch 2000, comprising such a movement 1000 and / or at least one such mechanism 100 for positioning and guiding the positioning and adjustment, and / or at least one such mechanism.
  • a timepiece in particular a watch 2000, comprising such a movement 1000 and / or at least one such mechanism 100 for positioning and guiding the positioning and adjustment, and / or at least one such mechanism.
  • display 1 for positioning and guiding the positioning and adjustment, and / or at least one such mechanism.
  • the invention takes up little space, and makes it possible to integrate quite easily into a watch, even of small dimensions such as a lady's watch, a spectacular and innovative display complication, based on a very fine mechanism. by being designed for optimum take-up of operating clearances.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electromechanical Clocks (AREA)
EP19199580.2A 2019-09-25 2019-09-25 Uhr-anzeigemechanismus mit mehrspuriger führung Active EP3798743B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP19199580.2A EP3798743B1 (de) 2019-09-25 2019-09-25 Uhr-anzeigemechanismus mit mehrspuriger führung

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP19199580.2A EP3798743B1 (de) 2019-09-25 2019-09-25 Uhr-anzeigemechanismus mit mehrspuriger führung

Publications (2)

Publication Number Publication Date
EP3798743A1 true EP3798743A1 (de) 2021-03-31
EP3798743B1 EP3798743B1 (de) 2022-05-18

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EP19199580.2A Active EP3798743B1 (de) 2019-09-25 2019-09-25 Uhr-anzeigemechanismus mit mehrspuriger führung

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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1125172A1 (de) * 1999-09-02 2001-08-22 John C. Ermel Uhr
JP3568526B1 (ja) * 2003-11-10 2004-09-22 博 中野 アナログ時計

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1125172A1 (de) * 1999-09-02 2001-08-22 John C. Ermel Uhr
JP3568526B1 (ja) * 2003-11-10 2004-09-22 博 中野 アナログ時計

Also Published As

Publication number Publication date
EP3798743B1 (de) 2022-05-18

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