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
  • 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
• • 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
  • G04B19/20—Indicating by numbered bands, drums, discs, or sheets
  • G04B19/202—Indicating by numbered bands, drums, discs, or sheets by means of turning discs
• • 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
  • G04B31/00—Bearings; Point suspensions or counter-point suspensions; Pivot bearings; Single parts therefor
  • G04B31/004—Bearings; Point suspensions or counter-point suspensions; Pivot bearings; Single parts therefor characterised by the material used
  • G04B31/012—Metallic bearings
  • G04B31/0123—Metallic bearings with metallic ball bearings and metallic roller bearings

Definitions

• the present invention relates to a timepiece comprising a watch movement and first and second display means of two pieces of information relating to the same unit of time, said movement being provided with
• pivoting members defining axes of rotation and mounted on said frame
• Such timepieces are often used to display two information relating to the time, for example the hours of two different time zones. Examples of embodiments are described in particular in the patent applications EP 1 826 638 and EP 1 734 418. These parts have at least two dials opposite which move needles to display respectively the time of a spindle schedule.
• the dials are generally distant from each other so that the hands do not overlap. This requires to provide timepieces including a large dial. For reasons of aesthetics and comfort, it may be necessary to limit the dimensions of the display dial, without reducing the dimensions of the display means. In this case, it is no longer possible to have two displays side by side, one for each zone, without reducing their size, bringing them closer together or superimposing them. These different solutions can then cause a decrease in the quality of reading the time.
• An object of the present invention is therefore to overcome these disadvantages, by providing a timepiece displaying two information relating to the same unit of time, allowing easy reading of said information while being of a particularly original design. Disclosure of the invention
• a timepiece comprising a watch movement and first and second display means of two pieces of information relating to the same unit of time, said movement being provided with a frame, pivot members defining axes of rotation and mounted on said frame and driving members, said display means being each mounted on one of said pivot members and driven by said drive members.
• the pivoting members on which the first and second display means are respectively mounted respectively comprise a ring and a shaft, the axis of rotation of the shaft being inscribed inside said ring and offset by relative to the axis of rotation of said ring.
• the display means of the two pieces of information relating to the same unit of time can be grouped together on a surface of reduced dimensions, without impairing the quality of reading and without hindering the movement of one with respect to the others.
• the pivot member comprising said ring may further comprise a ball bearing system provided with an outer ring, an inner ring and balls interposed between the two rings. one of the rings being secured to the frame, the other ring carrying said ring.
• the drive member of the ring may comprise a drive gear according to the unit of time, integral in rotation with the ring carrying the ring and kinematically connected to said watch movement.
• the drive member of the shaft may comprise a gear on which is fixed the shaft, said gear being kinematically connected to said watch movement.
• the drive member of the shaft can be kinematically connected to said drive member of the ring.
• the unit of time is the time
• the display means each displaying the time of a time zone.
• the drive member of the shaft may further comprise a phase shift mechanism for displaying the time of one of the time zones.
• the timepiece may, of course, also comprise means for displaying information relating to other time units, also mounted on a pivoting member comprising a ring and driven by a member of the body. training kinematically connected to the movement according to the unit of time to display.
• said pivot member of the ring showing another unit of time may also comprise a ball bearing system provided with an outer ring, an inner ring and balls interposed between the two rings, the one of the rings being secured to the frame, the other ring bearing said ring displaying another unit of time and being arranged to be driven by the corresponding drive member and to cooperate with the watch movement according to the unit of time to be displayed .
• the other unit of time may be the minute and the drive member of the ring to display the minutes may comprise a drive gear minutes, integral rotation of the ring bearing said ring, said minute drive wheel being on the one hand kinematically connected to the drive member of the ring to display the hours and on the other hand arranged to cooperate with a gear of the watch movement kinematically connected on the floor of the said movement.
• another time unit may be the second and the drive member of the ring to display the second may include a second drive gear, secured in rotation of the ring carrying said ring, said drive wheel being kinematically connected to the second mobile of the watch movement.
• the display means mounted on the pivot member comprising a ring may comprise an index integral with the ring.
• the display means mounted on the pivot member comprising a shaft may comprise a needle secured to the shaft.
• FIG. 1 is an overall view of the timepiece according to the invention.
• FIG. 2 is an exploded view of the movement and display means of said part
• FIG. 3 is a view of the elements arranged on the movement stage and intended to carry the display means
• FIG. 4 represents a detailed view of the drive member of the hour ring in connection with the drive member of the minute ring;
• FIGS. 5 to 7 are views showing the ball bearing systems of the pivot members and their drive member for displaying by means of the rings hours, minutes and seconds respectively.
• the invention relates to a wristwatch 1 comprising in a conventional manner a bracelet 2, a clockwork movement shown in Figure 2.
• This movement is provided with a frame 3, comprising a plate 3a and two superposed plates 3b and 3c.
• the various elements that conventionally comprises a basic clockwork movement, including a time base, a power source, and a train comprising a roadway and a second mobile.
• the watch 1 also comprises first and second display means of two pieces of information relating to the same unit of time.
• the first display means consist of an index 4 indicating a time in a first time zone and the second display means are constituted by a needle 5 indicating a time in a second time zone.
• the index 4 is mounted on a first pivot member defining an axis of rotation and mounted on the plate 3b of the frame 3.
• the needle 5 is mounted on a second pivot member defining an axis of rotation and mounted on the plate 3a.
• the first pivot member comprises a ring 6 and the second pivot member comprises a shaft 7, the axis of rotation of the shaft 7 being inscribed inside the ring 6 and being offset relative to the axis of rotation of the ring 6, as shown in Figures 1 and 2.
• the ring 6 comprises an annular body carrying the index 4 and whose periphery is extended by a flange 8.
• a dial 9 fixed on the plate 3b extends partially around said flange 8. This dial 9 may comprise graduations to identify the time displayed by the index 4.
• the first pivoting member also comprises a ball bearing 10, shown in detail in Figure 5.
• Said ball bearing system 10 comprises an outer ring 11, an inner ring 12 and balls 13 interposed between the two rings 11 and 12.
• the outer ring 11 has lugs 14 for attachment to the plate 3b.
• the inner ring 12 has an annular bottom 12a and carries, on the side of the display means, the ring 6 whose annular body is engaged inside the inner ring 12 to be fixed to the bottom 12a by studs 15.
• the inner ring s also carries a toothed wheel 16 for driving hours, constituting the drive member of the ring 6. As shown more precisely in FIG.
• the toothed wheel 16 is in the form of a ring provided with an external toothing 17 arranged to be kinematically connected to the base movement so as to cause the ring 6 at the speed of two revolutions per day, as will be described later.
• the shaft 7 carrying the needle 5 is secured to a toothed wheel 20 pivotally mounted on the plate 3a by means of a shaft driven on said plate 3a.
• the toothed wheel 20 constitutes the driving member of the shaft 7 and is arranged to be connected kinematically to the movement of base so as to drive the shaft 7 at the speed of two revolutions per day, as will be described later.
• the toothed wheel 20 comprises a star 21 and a jumper 22 constituting a time-shift mechanism enabling the hour to be displayed by the needle 5 in a time zone different from that of the time displayed by the index 4.
• This mechanism of phase shift is known to those skilled in the art and does not need to be described in more detail.
• the dimensions and the positioning of the various elements are chosen so that the axis of rotation of the shaft 7 is inscribed inside the ring 16 of the inner ring. 12 and the ring 6 and that the axis of rotation of the toothed wheel 20, the star 21 and the shaft 7 is offset relative to the axis of rotation of the ring 16, the inner ring 12 and ring 6.
• the toothed wheel 20 driving the shaft 7 is kinematically connected to the gear wheel 16 driving the hours, which causes the ring 6 and its ball bearing 10.
• a transmission pinion 25 cooperating on the one hand with the toothing 26 of the toothed wheel 20 and on the other hand with the toothing 17 of the toothed wheel 16 for driving the hours.
• the drive members can be driven by the basic movement in different ways.
• the watch 1 also includes display means minutes and second display means.
• the minutes display means comprise an index 30 mounted on a pivot member comprising a ring 31 and a ball bearing 28, shown in detail in Figure 6.
• the ring 31 comprises an annular body carrying the index 30 and whose periphery is extended by a flange 32.
• a dial 33 fixed on the plate 3b extends partially around said flange 32. This dial 33 may include graduations to identify the minute displayed by the index 30.
• Said ball bearing 28 shown in detail in Figure 6 and visible in Figure 3, comprises an outer ring 34, an inner ring 35 and balls 36 interposed between the two rings 34 and 35.
• the ring outer 34 has tabs 37 for its attachment to the plate 3b.
• the inner ring 35 carries, on the side of the display means, the ring 31 and on the other side, a toothed wheel 38 for driving minutes, constituting the drive member of the ring 31.
• the wheel toothed 38 is arranged to be kinematically connected to the base movement so as to cause the ring 31 at a rate of one revolution per hour.
• the toothed wheel 38 is secured to an axis 39 connected to a return 40 passing under the toothed wheel 20 and meshing with a reference 41, itself cooperating with the roadway of the base movement.
• the minute drive gear 38 is kinematically connected to the hour drive gear 16, which drives the ring 6. More specifically, an intermediate gear is provided whose gear wheel 42 meshes with the minute drive gear wheel 38 and whose pinion 43 meshes with the toothing 17 of the hour drive wheel 16, the pinion 43 and the wheel 42 being of dimensions and having the number of teeth necessary to obtain at the output a speed of rotation of the hours.
• the information and all the energy comes from the basic movement by its roadway. Since the latter is driven the reference 41, then the reference 40, which by the axis 39 drives the toothed gear 38 minutes drive. This rotates the inner ring 35 of the ball bearing 28 and the ring 31 for displaying minutes. Furthermore, the minute drive gear 38 cooperates with the hour drive gear 16 via the gear wheel 42 and the gear wheel 43. Then the hour drive wheel 16 rotates the gear wheel. inner ring of the ball bearing 10 and the ring 6 for displaying the hours according to a first time zone.
• the hour drive wheel 16 meshes with the transmission pinion 25 which itself meshes with the toothed wheel 20, causing the shaft 7 and the needle 5 to rotate for displaying the hours according to a second time zone, adjusted by means of the star 21 and its jumper 22.
• the second display means comprise two indexes 50 mounted on a pivot member comprising a closed ring 51 and a ball bearing 56, shown in detail in FIG. 7.
• the ring 51 comprises an annular body carrying the indexes 50.
• Said ball bearing 56 shown in detail in FIG. 7 and also visible in FIG. 3, comprises an outer ring. 52, an inner ring 53 and balls 54 interposed between the two rings 52 and 53.
• the outer ring 52 has tabs 55 for attachment to the plate 3b.
• the inner ring 53 carries, on the side of the display means, the ring 51 and on the other side, a gear wheel 57 for driving seconds, constituting the drive member of the ring 51.
• the wheel toothed 57 is arranged to be kinematically connected to the base movement so as to drive the ring 51 at a rate of one revolution per minute. More specifically, the toothed wheel 57 meshes with a wheel 58 integral with a second movable axis of the base movement. It is obvious that the different kinematic links between the different elements can be made differently without departing from the scope of the invention. Similarly, the display means may be different, for example the movable index may be replaced by a mobile graduation provided on the ring, the index being then fixed on the corresponding dial.

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• Physics & Mathematics (AREA)
• General Physics & Mathematics (AREA)
• Electromechanical Clocks (AREA)
• Measurement Of Predetermined Time Intervals (AREA)

Applications Claiming Priority (2)

Publications (1)

Family

ID=40791396

Family Applications (1)

Country Status (3)

Family Cites Families (4)

• 2009
  • 2009-03-19 CN CN2009801092563A patent/CN101978328A/zh active Pending
  • 2009-03-19 WO PCT/EP2009/053278 patent/WO2009115592A1/fr active Application Filing
  • 2009-03-19 EP EP09722600A patent/EP2255256A1/de not_active Withdrawn

Non-Patent Citations (1)

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