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US 2003/0193840 A1Published application
Device for displaying the day of the month
AssigneeRichemont International SA
InventorMarc Huter
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AssigneeRichemont International SA
InventorMarc Huter
Estimating the term…
The device for displaying the day of the month comprises a units display member (1) and a tens display member (2) provided one with at least one series of numerals from 0 to 9 and the other with a series of numeral from 0 to 3, these units and tens display members being positioned relative to each other so as to display in the space of a large window two numerals side by side. The units display member (1) is divided into ten sectors or a multiple of ten sectors each carrying a numeral from 0 to 9, the nine sectors (a) separating the numerals 0-1; 1-2; . . . 8-9 having an angular extent equal to ⅘th of the angular extent of the sectors (b) separating the numerals 9 from the numerals 0.
Device for displaying the day of the month, comprising a units display member (1) and a tens display member (2) provided one with at least one series of numerals from 0 to 9 and the other with a series of numerals from 0 to 3, these display members of the units and tens being positioned relative to each other so as to display in the space of a large window two numerals side by side, one carried by the units display member (1) and the other carried by the tens display member (2), characterized by the fact that the units display member (1) is divided into ten sectors or a multiple of ten sector each bearing a numeral from 0 to 10, the nine sectors (a) separating the numerals 0-1;
Display device according to one of the preceding claims, characterized by the fact that the pinion (4) and the tens disc (2) are driven by a micromotor controlled by an electronic circuit.
Dependencies are inferred from the claim text.
From the US filing history. Foreign family members aren’t listed.
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With date indication: electromagnetically driven, e.g. intermittently
Characterised by the shape of the date indicator: disc-shaped
Electromechanical clocks or watches
Mechanically-driven clocks or watches
Term end not estimated
The present invention relates to a device for displaying the day of the month, particularly for a timepiece of the type comprising a ring of units comprising numerals from 0 to 9 and a tens disc comprising numerals from 0 to 3, the day of the month being displayed in a large window by two numerals disposed side by side, one being carried by the units ring and the other by the tens disc. Such a device permits displaying the day of the month with numerals of large size which are thus easily readable.
Such displays of the day of the month are known from the patent EP0 529 191 or from Swiss patent 689,601 which both describe displays of the day of the month driven by a mechanical timepiece movement. The two known mechanisms for display of the days of the month are relatively complex and require several gear trains for driving respectively a units ring with several superposed years, which requires a large height size of these mechanisms.
The present invention has for its object the display of the day of the month for an electromechanical timepiece movement which will be simple, requiring few pieces, easy to machine, and having a reduced height and whose reading will be easy because of the large size of the numerals.
The single FIGURE of drawing attached, illustrates schematically and by way of example an embodiment of a display of the day of the month according to the present invention.
The present display device of the day of the month is of the “large date” type, which is to say comprising a units member or ring 1 provided with a series of numerals 0 to 9 or a multiple of this series of numerals 0 to 9, and a tens member or disc 2 provided with numerals 0 to 3, or a multiple of this series of numerals 0 to 3, arranged so as to cause to appear side by side a numeral from the units ring 1 and a numeral from the tens disc 2 in a single large window of a timepiece face.
The display device which will be described in what follows can be included in any type of clock movement, mechanical, electrical or electromechanical, although it is particularly adapted for the latter.
The display device according to the invention as shown in the drawing is comprised by a units display member formed here by a ring of units 1 and a tens display number, here a tens disc 2.