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
  • G04B19/26—Clocks or watches with indicators for tides, for the phases of the moon, or the like
  • G04B19/268—Clocks or watches with indicators for tides, for the phases of the moon, or the like with indicators for the phases of the moon
• • 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
  • G04B19/087—Geometrical arrangement of the graduations with several separate scales
• • 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
  • G04B19/24—Clocks or watches with date or week-day indicators, i.e. calendar clocks or watches; Clockwork calendars
• • G—PHYSICS
  • G04—HOROLOGY
  • G04C—ELECTROMECHANICAL CLOCKS OR WATCHES
  • G04C17/00—Indicating the time optically by electric means
• • G—PHYSICS
  • G04—HOROLOGY
  • G04C—ELECTROMECHANICAL CLOCKS OR WATCHES
  • G04C3/00—Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means
  • G04C3/14—Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means incorporating a stepping motor
  • G04C3/146—Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means incorporating a stepping motor incorporating two or more stepping motors or rotors

Definitions

• This date function can be simple, semi-perpetual, or perpetual. In the latter case, it is necessary to program in addition to the day, the month and the leap year. In addition, the date can be completed by displaying the moon phases.
• One of the main difficulties is to clearly display the number of days of the month which can vary from 28 to 31, which supposes, particularly in the case of an analog needle display, a special graduation often not easy to read as this can be seen in the above-mentioned patent.
• the present invention relates to a watch with a particularly legible display of the date, this display being able to be used momentarily for displaying the month or the hour over 24 hours.
• This watch with date function comprising at least several display mobiles driven completely independently of each other by at least several stepping motors is characterized by the fact that it includes electronic means arranged so as to display the date by means of two graduations placed on two separate dials, the ten being displayed on a first dial by a first of said display mobiles driven by a first motor, and the unit on a second dial by a second of said display mobiles driven by a second engine.
• Figure 1 shows by way of example a watch according to the invention with display of the day and leap year.
• FIG. 2 schematically shows, by way of example, part of the electronic means of a watch according to the invention.
• FIG. 3 shows by way of example a watch according to the invention to which a display of the month and moon phases has been added.
• FIG. 4 shows by way of example a particular combination of a display mobile where the needle has been replaced by a disc carrying a graduation.
• FIG. 1 there is shown by way of example a watch comprising hour (1) and minute (2) hands, as well as two hands (3 and 4) working on two separate dials at 2 o'clock and at 10 hours for the display of additional functions.
• These four hands are independent of each other and form as many display mobiles each driven through a train of cogs by their own stepping motor, the position of each of these hands being managed directly by the circuit. electronic.
• the hand (3) which takes 24 steps per revolution, simultaneously displays the ten days and the leap year on a dial.
• This dial carries a double graduation formed by 4 sectors numbered from 0 to 3 (6), each sector having an internal graduation of four positions (7).
• the hand (3) therefore simultaneously indicates the ten days in the corresponding sector, ie 2 in the case of FIG. 1, and the leap year on the internal graduation of the sector.
• the hand (4) indicates the unit of days on a scale from 0 to 9 (8).
• the case of Figure 1 shows the 23 th day of the month in a leap year.
• FIG. 2 diagrammatically shows by way of example the electronic circuit which manages the position of the needle 3.
• This circuit comprises a correspondence table (20) connected on the one hand to the tens of days counting circuit (21), and on the other hand the leap year counter (22). Each of these counters has four separate states, which represents 16 possible combinations.
• the correspondence tcjle (20) therefore fixes 16 positions of the needle (3) corresponding to these 16 possible combinations, each of these 16 positions corresponding to a particular position of the needle on the dial 5.
• This correspondence table is connected to a positioning circuit (23) which manages the 24 possible positions of the needle (3) on the dial and delivers pulses to the motor (24) until the needle is in the position given by the correspondence table.
• Figure 3 there is shown by way of example a date device where the month is permanently displayed by an additional display mobile comprising the hand (30) working on a graduation of
• This arrangement makes it possible to simultaneously display all the parameters of a perpetual calendar, i.e. the unit of days by means of the hand (4), the ten days and the leap year by means of the needle (3), and the month by means of the needle (30).
• a configuration similar to that described in FIG. 2 it is possible to use the hand (30) to temporarily display a second parameter, that is, in the example of FIG. 3, the moon phases on the element. graphic (32) supposed to represent the sky.
• FIG. 3 represents more particularly the case described in FIG. 2, that is the momentary display of the time over 24 hours during the time setting operations.
• the time setting (11) is in the pulled out position to allow setting the hands (1 and 2) by means of the pushers (9 and 10).
• the hands (3 and 4) i.e. the tens to by means of the needle (3) and the units by means of the needle (4), so as to avoid having a 12-hour difference in time as the date passes, as frequently happens on conventional watches.
• the hands (3 and 4) indicate 23 hours; it is therefore 11.40 p.m. and not 11.40 a.m.
• FIG. 4 represents a particular combination of a display mobile according to the invention.
• this term display mobile has been used rather than that of needle, because it is possible to replace the needle by other mobile systems, such as for example a graduated disc moving by compared to fixed graphic elements.
• a graduated disc moving by compared to fixed graphic elements.
• FIG. 4 we see such a disc (40) transparent and carrying a graduation from 1 to 12 (41) and a circle representing the moon (42).
• This disc moves on a background decoration on a dark background comprising a light area (43).
• the indications opposite the dark background are practically illegible, while the elements opposite the light background are perfectly legible. This method makes it possible to obtain interesting variants and to display the month, even the day, in pseudo-digital.

Landscapes

• Physics & Mathematics (AREA)
• General Physics & Mathematics (AREA)
• Geometry (AREA)
• Astronomy & Astrophysics (AREA)
• Electromechanical Clocks (AREA)
• Electric Clocks (AREA)

Applications Claiming Priority (3)

Publications (2)

Family

ID=4235029

Family Applications (1)

Country Status (7)

Cited By (1)

Families Citing this family (16)

Family Cites Families (9)

• 1992
  • 1992-08-10 CH CH2492/92A patent/CH684917B5/fr not_active IP Right Cessation
• 1993
  • 1993-08-10 WO PCT/CH1993/000200 patent/WO1994003845A1/fr not_active Ceased
  • 1993-08-10 US US08/211,636 patent/US5469410A/en not_active Expired - Lifetime
  • 1993-08-10 DE DE69311533T patent/DE69311533T2/de not_active Expired - Lifetime
  • 1993-08-10 JP JP6504864A patent/JPH07503074A/ja active Pending
  • 1993-08-10 EP EP93915630A patent/EP0619035B1/de not_active Expired - Lifetime
• 1998
  • 1998-06-16 HK HK98105353A patent/HK1006196A1/xx not_active IP Right Cessation

Non-Patent Citations (1)

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