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
  • G04B45/00—Time pieces of which the indicating means or cases provoke special effects, e.g. aesthetic effects
• • 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
  • G04B19/06—Dials
  • G04B19/08—Geometrical arrangement of the graduations

Definitions

• Analog display device for a timepiece
• the invention relates to an analog display device for a timepiece.
• the time is indicated using a hand called the hour hand.
• This hand has a pivot point most often placed in the center of the dial and, as a rule, it makes a complete revolution in twelve hours passing successively from one hour to the other at a regular speed in sixty minutes in the direction anti-trigonometric.
• the object of the invention is to provide a “trompe-l'oeil” display characterized by a disorderly alignment of its figures, the hour hand having to make jumps to pass from one figure to another.
• the analog display device for a timepiece is characterized in that it comprises display means arranged to perform jumps relative to a dial
• the values to be displayed on the dial are shifted on the dial clockwise or counterclockwise.
• the successive values to be displayed are shifted by a certain number of successive positions in the sequence of values.
• the offset is five, seven, or thirteen successive positions.
• the dial displays the hours using hands.
• the display means are discs placed under the dial, the latter being cut out to reveal the values displayed on the discs.
• the device can be adapted to display values which are hours and minutes, dates, day names, weeks, phases of the moon, etc.
• the device analog display includes a control mechanism having a winding wheel integral with a pulse wheel, energized by a pulse spring, which propels the pulse wheel counterclockwise following activation spring tension by a truncated carriageway attached to the roadway making one revolution per hour.
• the analog display device comprises a control mechanism having a rake in connection with the minute pinion, and a rake in connection with the hour wheel, the minute rake being guided by a cam mounted on a return wheel driven by the standard carriageway of the movement, the rake falling into the void of the cam after a complete revolution of the latter, and driving the minute pinion and the hours allowing the jump from one hour to the next.
• the drawing shows, by way of example, two embodiments of the analog display device for hours or other data (days, dates, etc.) for a timepiece, object of the invention.
• FIG. 1 is a view of the dial and the hands of the device
• Figure 2 is a view similar to that of Figure 1 with the representation of a passage sector from one hour to the next hour,
• FIG. 4 is a view of the first embodiment of a control mechanism in its successive phases a, b, c, and d, of operation,
• Figure 5 is a view of the second embodiment of the control mechanism of the
• Figure 6 is a view of a display of the device by means of discs located under
• Figure 7 is a view of a display of the device indicating the date.
• the time is indicated using a hand called: hour hand.
• This hand has a pivot point most often placed in the center of the dial. As a rule, it makes a complete revolution in twelve hours, going from one hour to the other at a regular speed, in sixty minutes, in the anti-trigonometric direction.
• the analog display device shown in the drawing differs from conventional watches on the one hand by its "trompe-l'oeil” display, ie by the disordered alignment of its figures, and on the other hand by jumps made by the hour hand.
• the device comprises a dial 1, an hour hand 2, and a minute hand 3, having a pivot point coinciding with the center of the dial 1, like conventional watches.
• the minute hand 3 performs a standard trajectory, and indicates the minutes in the usual way.
• the hour hand 2 does not make a full revolution of the dial in twelve hours, but it passes from one hour to the other by instantaneous jump, clockwise (anti-trigonometric). It follows the disordered order of the figures (ascending) despite the “crazy” alignment of these.
• the course of the hour hand 2 from one hour to the next is 150 ° or five hour indications following the anti-trigonoic direction.
• the hour hand makes a consecutive passage on the same figure every twelve hours. In other words, it takes five turns of the dial to return to the same figure.
• the hour hand travels twelve times 150 °, i.e. 1800 °, or five times 360 °.
• the first embodiment of the analog display device of Figures 1 to 3 comprises a control mechanism whose operation is described with reference to Figures 4a, 4b, 4c, and 4d.
• this mechanism :
• a truncated carriageway 10 is adjusted to the standard carriageway 11 with a conventional movement, in an integral manner, that is to say that the truncated carriageway performs one revolution in one hour.
• the minute hand is normally adjusted integrally on the roadway 11. In this way the minute hand indicates the minutes in a standard manner.
• the hour wheel 12 is freely adjusted, and is co-axial with the carriageway 11. It can rotate freely on its axis of rotation "Al" without driving the carriageway 11.
• the hour hand is securely adjusted to the hour wheel 12 as in a standard movement.
• the 12 hour wheel has the distinction of having twelve teeth which serve between other to always position it so that the hour hand is in line with the hour index on the dial thanks to the hour jumper 13 which angularly positions the hour wheel 12.
• a pivot pin 14 secured to the module plate is fixed co-axially to axis "A2".
• a pulse wheel 15 is part of a set 16 of four components: the winding wheel 17, the pulse wheel 15, and two positioning pins 18 and 19.
• the two positioning pins 18 and 19 have a double function: on the one hand, they make the winding wheel 17 and the impulse wheel 15 integral by the fact that they are driven into the two parts, and on the other hand they protrude in height from the pulse 15, and serve as a contact point for pulse spring 20.
• the pulse spring 20 and the hour jumper 3 are leaf springs made integral with the module plate by any means. In our case, these leaf springs are crimped into grooves in the module plate.
• the pulse spring 20 has two functions: it positions, as a jumper would do, the pulse wheel 15 in its angular position, taking support on two contact points that are the two positioning pins 18 and 19. In addition, it maintains the impulse wheel 15 in height, and prevents it from coming out of its housing.
• the mechanism which has just been described operates as follows:
• the roadway 11 rotates in one revolution per hour.
• the truncated roadway 10 being integral with the roadway 11, it rotates at the same speed. As the figure shows
• the truncated roadway 10 comes into contact with the winding wheel 17 via its toothing.
• the winding wheel 17 is still waiting for the teeth of the truncated carriageway 10 in this position since the winding wheel 17 is positioned by the impulse spring pressing on the two positioning pins 18 and 19
• FIG. 5 of the drawing representing a second embodiment of a drive mechanism of the analog display device comprises:
• a minute cam 31a is fixedly attached to the center return wheel 31. This cam 31a therefore performs a complete revolution in one hour in the counterclockwise direction.
• a 32 minute rake pivots around the A3 axis and carries, in solidarity, the two pins: a pin 33 for limiting the hour rake spring, and a pin 34 for pivoting the hour rake.
• the hour rake 33 is mounted to rotate freely around the pin 34 for pivoting the hour rake.
• the hour rake spring 36 is assembled in an integral manner with the hour rake 35. It bears against the pin 33 for limiting the hour rake spring.
• the hour rake spring 36 is fixedly attached to the base plate of the mechanism.
• the minute pinion 37 carries the minute hand, and the hour wheel carries the hour hand.
• the 32 minute rake constantly meshes with the 37 minute gear.
• the hour rake 35 constantly meshes with the hour wheel 38 when it goes in the direction of the falling of the minute rake 32, but it recedes when the minute rake rises along the minute cam 31a.
• the mechanism of FIG. 5 performs the following operations: the standard carriageway 30 rotates in one revolution per hour, and drives the return wheel 31 at the same speed, but in the opposite direction.
• the teeth of the minute rake 32 are calculated so that the minute pinion 37 completes one full turn in one hour.
• the 37 minute pinion never continues its turn, it systematically returns back after the jump of each hour.
• the hour rake 35 does not drive the hour wheel 38 because the latter is held by a jumper.
• the rake degenerates during its rise thanks to the shape of the teeth (wolf teeth style).
• the rake 35 is always pushed by the spring 35a of the hour rake against the toothing of the hour wheel so that when it descends, it can drive the hour wheel 38 counterclockwise.
• the analog display device presents colored disks situated under the dial, the disks replacing here the hour and minute hands.
• the dials are made so that the hour and minute digits are visible through the dial.
• Figure 6 shows four examples of timekeeping. In Figure 6a, it is 8 o'clock.
• analog display devices which have just been described, as well as their control mechanisms, can be adapted to display data other than the time, for example the date, the days of the week, moon phases, etc.
• the analog display and its mechanism can also be mounted on a quartz movement.
• FIG. 7 of the drawing shows a view of an analog date display device, where the jump made between two successive dates is each of thirteen locations.

Applications Claiming Priority (3)

Publications (1)

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ID=31892697

Family Applications (1)

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• 2002
  • 2002-08-23 CH CH01446/02A patent/CH695798A5/fr not_active IP Right Cessation
• 2003
  • 2003-08-11 CN CN03816197.4A patent/CN1666158A/zh active Pending
  • 2003-08-11 US US10/525,281 patent/US7496003B2/en not_active Expired - Fee Related
  • 2003-08-11 JP JP2004530122A patent/JP2006504080A/ja active Pending
  • 2003-08-11 RU RU2005108067/28A patent/RU2321039C2/ru not_active IP Right Cessation
  • 2003-08-11 WO PCT/EP2003/008906 patent/WO2004019140A2/fr active Application Filing
  • 2003-08-11 AU AU2003266274A patent/AU2003266274A1/en not_active Abandoned
  • 2003-08-11 EP EP03792293A patent/EP1532492A2/fr not_active Withdrawn

Non-Patent Citations (1)

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