EP0504623B1 - Double fuseau horaire à axe traversant avec mise à l'heure sur la couronne - Google Patents

Double fuseau horaire à axe traversant avec mise à l'heure sur la couronne Download PDF

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Publication number
EP0504623B1
EP0504623B1 EP92103093A EP92103093A EP0504623B1 EP 0504623 B1 EP0504623 B1 EP 0504623B1 EP 92103093 A EP92103093 A EP 92103093A EP 92103093 A EP92103093 A EP 92103093A EP 0504623 B1 EP0504623 B1 EP 0504623B1
Authority
EP
European Patent Office
Prior art keywords
pinion
gearwheel
display
cannon
meshing
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
EP92103093A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0504623A1 (fr
Inventor
Michel Ollier
Roger Schaffter
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.)
Ash SA Ollier Michel
Original Assignee
Ash SA Ollier Michel
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 Ash SA Ollier Michel filed Critical Ash SA Ollier Michel
Publication of EP0504623A1 publication Critical patent/EP0504623A1/fr
Application granted granted Critical
Publication of EP0504623B1 publication Critical patent/EP0504623B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • 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
    • G04B19/00—Indicating the time by visual means
    • G04B19/02—Back-gearing arrangements between gear train and hands
    • G04B19/025—Back-gearing arrangements between gear train and hands for simultaneous indicating on several dials
    • 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
    • G04B19/00—Indicating the time by visual means
    • G04B19/22—Arrangements for indicating different local apparent times; Universal time pieces
    • G04B19/23—Arrangements for indicating different local apparent times; Universal time pieces by means of additional hands or additional pairs of hands
    • G04B19/235—Arrangements for indicating different local apparent times; Universal time pieces by means of additional hands or additional pairs of hands mechanisms for correcting the additional hand or hands
    • 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
    • G04B27/00—Mechanical devices for setting the time indicating means
    • G04B27/02—Mechanical devices for setting the time indicating means by making use of the winding means
    • G04B27/026—Mechanical devices for setting the time indicating means by making use of the winding means for several clockworks or pairs of hands and/or supplementary functions

Definitions

  • the present invention relates to a timepiece movement intended to equip the case with a reversible watch, and making it possible to display, opposite each of the two main faces of the case, different time information. It relates more particularly to a movement comprising means for indicating in analog form two time information, one on each face of the movement, this information advancing in synchronism with one another, as for example in the case of the display of two different time zones.
  • patent CH 57805 which describes a double-sided pocket watch indicating on each side a different time by means of two analog hand displays, the hands of one of the displays pivoting in the opposite direction to those on the other around a common axis passing through the center of the watch.
  • a clockwork movement and a time-setting mechanism ensure, respectively, the synchronous driving of the hands of the two displays, and the correction, also synchronous, of the time indicated on the two faces.
  • the hands of one of the displays are rotated in a conventional manner, on one side of the movement, by a center shaft fitted with fatty friction in the shaft of the large average.
  • the hands of the other display are actuated by a gear train which meshes with a return pinion fixed, opposite the other side of the movement, on the center shaft.
  • the presence of the return pinion, placed between the face of the movement and the hands, increases the total thickness of the caliber accordingly. If this is acceptable in the case of a pocket watch, such an increase in thickness would on the other hand present a significant drawback in the production of a wristwatch where the height plays, from the aesthetic point of view, a determining role.
  • patent application CH-D-3126/68 describes a double-sided watch whose movement causes, opposite one of the faces, a time display by conventional hands, and, opposite the other. opposite, a central minute hand and a jumping hour disc appearing in a window.
  • Each display which can be set independently of the other by a crown of its own, is rotated by a gear train directly driven by the barrel, which has the disadvantage of requiring a number high of mobiles.
  • Patent CH-A-51144 relates to a reversible pocket watch, a conventional needle display showing normal time on one side, and another needle display showing Muslim time on the other side.
  • the movement is provided, for this purpose, with a mechanism which drives the other display at a uniform speed, but which is faster or slower, depending on the position of the Earth relative to the Sun, than that of the display. of normal time.
  • Patent CH-A-327,017 also discloses a double-sided clock in which the two displays, indicating the same time, are driven by a bevel gear secured to a shaft fixed on the shaft of the large average of a movement d timepiece arranged in the base. The time setting acts on both displays.
  • the object of the present invention is to propose a clockwork movement for a reversible watch which does not have the drawbacks of existing embodiments.
  • the movement according to the invention comprising two main faces which are substantially flat and parallel, a center shaft rotating around a pivot axis oriented perpendicular to the main faces, a lantern-like carriageway disposed on the center shaft and supporting a pinion, a toothed timer wheel meshing with the pinion, an hour toothed wheel centered on the pivot axis and meshing with a pinion integral with the timer wheel, the lanterned floor and the hour wheel supporting respectively, by view of one of the main faces, a minute hand and an hour hand with a time display, means for setting the time of the display, and means for rotating in the opposite direction , opposite the other main face and around the pivot axis, an hour hand and a minute hand of another time display, is mainly remarkable in that the m oyens for rotating the needles of the other display comprise a deflection shaft arranged perpendicular to the main faces, a first toothed wheel secured to the deflection shaft and meshing with the timer cog
  • An advantage of the invention comes from the fact that no moving part of the train driving the hands of the other display increases the thickness of the movement at the point of pivoting of the hands of the two displays. The total height of the movement is therefore increased only that of the two mobiles, essential, supporting the hands of the additional display.
  • the reference 1 designates a plate, the latter being a thin and flat plate, generally of circular shape.
  • the plate which is delimited by two opposite faces, constitutes the basic element of the movement.
  • the underside of the plate, referenced 2 is intended to receive the dial, not shown, of the watch.
  • the face 2 further supports, in appropriate housings 3, cogs, also called movable, these cogs having the function of rotating the minute hand 4 and that of the hours 5 of the usual analog display of the watch .
  • Other moving parts of the movement are held in place by means of bridges which are fixed on the other face 6 of the plate 1, such as for example the bridge bearing the reference 7.
  • the members which have just been described form part of any conventional analog movement.
  • the face 2 with the members that it supports thus constitutes one of the two main faces, referenced 8, of such a movement, and opposite which the needles 4 and 5 move.
  • the bridges and the face 6 on which they are fixed form the other main face, referenced 9, of this movement.
  • the present invention proposes to describe a transformation of a conventional analog movement making it possible to add to this movement a second analog display of the time, the hands 4 ′ and 5 ′ of this display moving, opposite the main face. 9 of the movement and of another dial not shown, in synchronism with hands 4 and 5 of the usual display, or first display.
  • the movement can be that of a wristwatch, a pocket watch, or a pendant watch.
  • the two displays comprising similar elements, the main elements of the first display, known from the prior art, will first be described.
  • the reference 15 thus designates a shaft which pivots in the plate 1 and the bridge 7 of the movement, and on which a center pinion 16 is driven, this pinion supporting on its side a center gear referenced 17.
  • the shaft 15, called center shaft or minute tree rotates at the rate of one revolution per hour around a pivot axis aa 'arranged perpendicular to the main faces 8 and 9 of the movement.
  • the pinion 16 meshes with a barrel, not shown, which provides the movement with the torque necessary for its operation.
  • the wheel 17 meshes, for its part, with a train not shown whose rotation speed is stabilized by a spiral balance.
  • the shaft 15 could just as easily, in the case of an electronic quartz movement, be that of a stepping motor.
  • the shaft 15 projects from each of the two main faces of the movement.
  • a hollow cylindrical member 18 pivoting about the axis aa 'and which is called lanterned roadway.
  • the roadway has at one end a pinion 19 which is disposed in a housing 20 of the plate 1. It further comprises in its middle a groove 21 intended to weaken its wall which is pinched, at a location 21a, so that its inner face, coming into contact with a corresponding conical part 15a of the shaft 15, creates a friction torque depending on the gripping force.
  • the free end of the roadway 18 has a cylindrical part 22 of reduced diameter, called the minute cannon, and on which the needle 4 is driven.
  • the pinion 19 of the roadway 18 meshes with a timer wheel 23 which pivots about an axis bb 'on a shaft 24 driven into the plate 1.
  • a timer pinion 25 which meshes with a wheel of the hours 26.
  • the diameters of the wheels 23 and 26 and of the pinions 19 and 25 are chosen so that the wheel 26 rotates 12 or 24 times slower than the minute shaft 15 and can thus be used to indicate the hours.
  • the wheel 26 has in its center a tubular part 27, called the hour cannon, which is arranged on the roadway 18 so as to pivot around the axis aa ', and on which the needle 5 is fixed.
  • the movement further comprises a conventional time-setting mechanism, not shown, which is controlled by a time-setting rod when the latter occupies a determined axial position.
  • the mechanism is a cog which meshes with the pinion 19 of the roadway 18 in order to allow the hands 4 and 5 to be moved quickly when sufficient torque is applied to the time-setting rod to overcome the friction between the roadway 18 and the minutes tree 15.
  • the reference 30 designates in FIG. 1 a shaft of this mechanism, this shaft traversing the movement right through so as to pivot around an axis cc 'arranged perpendicular to the faces 8 and 9.
  • the shaft 30 is supported on the side of the face 8 of the movement by an existing timer bridge 31, and on the side of the face 9, by a complementary bridge 32.
  • the bridge 32 is fixed to the movement by means of the screws 33 and 34, shown in FIG. 2, the first being screwed into a support 35 integral with the bridge 7.
  • On the shaft 30 is driven, on the side of the face 8, a toothed wheel 36 which meshes with the timer wheel 23. This meshing is symbolically represented on the fig.
  • the roadway 37 further comprises a pinion 39, disposed in a housing of the plate 1 on the side of the face 8 of the movement, and a toothed wheel 40, of same diameter as the wheel 36, placed between the bridges 7 and 32.
  • the toothed wheel 40 meshes with an inversion toothed wheel 41 pivoting on a shaft 42 around an axis dd ', while the wheel 41 meshes with a timer toothed wheel 23' pivoting on a shaft 43 around an axis ee '.
  • the wheel 23 ' is identical to the wheel 23, and therefore has the same diameter as the latter, and it comprises a pinion 25' similar to the pinion 25.
  • the shafts 42 and 43 are driven into housings of the bridge 7, the axes dd 'and ee' of these trees being oriented perpendicular to the main faces 8 and 9 of the movement.
  • a roadway 18 ' identical to the roadway 18, which comprises a pinion 19' similar to the pinion 19 and coming to mesh with the wheel 23 '.
  • the carriageway 18 ′ which supports the minute hand 4 ′ at its end, does not, however, exhibit pinching, which means that it pivots without constraint on the shaft 15, unlike the carriageway 18.
  • an hour wheel 26' identical to the wheel 26, which meshes with the pinion 25 ', and which comprises a barrel 27' supporting the hour hand 5 '.
  • the diameters of the mobiles 19 ', 23', 25 ', 26' and 40 ' are, in this case, equal respectively to the diameters of the mobiles 19, 23, 25, 26 and 36, it follows that the needles 4 'and 5' pivot around the axis aa 'at the same speed as the corresponding needles 4 and 5, but in the opposite direction to the latter thanks to the reversing wheel 41.
  • the diameters of the mobile 19 ', 23', 25 ', 26', 36 and 40 could be different from those indicated, provided that their ratios are determined so as to ensure the speeds 4 'and 5' correct rotation.
  • the time setting of the first display comprising hands 4 and 5 is obtained, as has already been indicated, by means of a conventional time setting rod.
  • the needles 4 'and 5' of the second display naturally move in synchronism with those of the first display.
  • the independent time setting of the two displays is made by means of a control member 50 in the form of a rod secured to an external pusher not shown.
  • the rod has a conical end 51 which is arranged opposite the pinion 39 so as to remain outside the toothing of this pinion when the pusher is not activated.
  • the pusher being at rest, the second display can then be set to the time by moving the hands 4 'and 5', which also modifies, of course, the position of the hands 4 and 5.
  • the first display can then be set to the time by moving only hands 4 and 5.
  • the shaft 30 rotates during this operation, but its movement is not transmitted to the wheel 40 since the roadway 37 is blocked.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electromechanical Clocks (AREA)
  • Control Of Metal Rolling (AREA)
  • Analysing Materials By The Use Of Radiation (AREA)
  • Paper (AREA)
  • Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
EP92103093A 1991-03-20 1992-02-24 Double fuseau horaire à axe traversant avec mise à l'heure sur la couronne Expired - Lifetime EP0504623B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH840/91A CH681190B5 (enrdf_load_stackoverflow) 1991-03-20 1991-03-20
CH840/91 1991-03-20

Publications (2)

Publication Number Publication Date
EP0504623A1 EP0504623A1 (fr) 1992-09-23
EP0504623B1 true EP0504623B1 (fr) 1996-05-01

Family

ID=4196434

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92103093A Expired - Lifetime EP0504623B1 (fr) 1991-03-20 1992-02-24 Double fuseau horaire à axe traversant avec mise à l'heure sur la couronne

Country Status (4)

Country Link
EP (1) EP0504623B1 (enrdf_load_stackoverflow)
CH (1) CH681190B5 (enrdf_load_stackoverflow)
DE (1) DE69210295T2 (enrdf_load_stackoverflow)
ES (1) ES2086567T3 (enrdf_load_stackoverflow)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH684918B5 (fr) * 1993-04-16 1995-08-15 H D G S A R L Module additionnel pour mouvement d'horlogerie.
DE4322471A1 (de) * 1993-07-06 1995-01-12 Jaeger Lecoultre Sa Uhr
CH686543B5 (fr) * 1994-02-21 1996-10-31 Universal Montres Sa Mécanisme de correction pour mouvement d'horlogerie.
CH716543A1 (de) 2019-08-27 2021-03-15 Newsphere Gmbh Einstellvorrichtung, Umwendvorrichtung und ein Uhrwerk für eine umwendbare Uhr, sowie eine umwendbare Uhr.
EP3882715B1 (fr) * 2020-03-19 2024-03-13 Omega SA Piece d'horlogerie a affichage double face

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH51144A (fr) * 1911-01-07 1911-08-01 Josue Helfmann Mouvement de montre actionnant deux dispositifs-indicateurs dont l'un a une marche relative par rapport à l'autre indiquant l'heure normale
CH57805A (fr) * 1911-11-14 1913-02-01 Aurele Donze Montre de poche à double face
CH327017A (fr) * 1955-10-15 1958-01-15 Jack Kaufman Samuel Pendulette double-face
CH312668A4 (enrdf_load_stackoverflow) * 1968-03-01 1970-08-14
JPS4924696B1 (enrdf_load_stackoverflow) * 1970-02-27 1974-06-25

Also Published As

Publication number Publication date
EP0504623A1 (fr) 1992-09-23
DE69210295D1 (de) 1996-06-05
CH681190B5 (enrdf_load_stackoverflow) 1993-08-13
CH681190GA3 (enrdf_load_stackoverflow) 1993-02-15
DE69210295T2 (de) 1996-09-19
ES2086567T3 (es) 1996-07-01

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