EP1943564B1 - Uhr mit digitaler anzeige - Google Patents

Uhr mit digitaler anzeige Download PDF

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Publication number
EP1943564B1
EP1943564B1 EP06806031.8A EP06806031A EP1943564B1 EP 1943564 B1 EP1943564 B1 EP 1943564B1 EP 06806031 A EP06806031 A EP 06806031A EP 1943564 B1 EP1943564 B1 EP 1943564B1
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EP
European Patent Office
Prior art keywords
hours
tens
drum
units
teeth
Prior art date
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Application number
EP06806031.8A
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English (en)
French (fr)
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EP1943564A2 (de
Inventor
Marco Rochat
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.)
Blancpain SA
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Blancpain SA
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Publication date
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Priority to EP06806031.8A priority Critical patent/EP1943564B1/de
Publication of EP1943564A2 publication Critical patent/EP1943564A2/de
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Publication of EP1943564B1 publication Critical patent/EP1943564B1/de
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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
    • G04B19/20—Indicating by numbered bands, drums, discs, or sheets
    • G04B19/21—Drums

Definitions

  • the present invention relates to a timepiece such as a wristwatch. More specifically, the invention relates to such a timepiece capable of displaying the hours and minutes by means of four drums kinematically linked to each other, the first of which indicates the units of the minutes, the second the tens of minutes, the third the units of hours and the fourth the tens of hours. This gives a digital display twenty-four hours of the current time.
  • Timepieces with a digital display of the time of the aforementioned kind are already known from the prior art.
  • a first category of these timepieces includes only three drums, namely a drum for minute units, a drum for tens of minutes and a drum for hours.
  • the drum for the hours comprises the markings of "0" to "23" to allow the display of the twenty-four hours of a day.
  • the drum for the hours comprises the markings from "0" to "12" to allow an hour display of the "meridium” type “AM”, post meridium “PM”.
  • the drum has only thirteen markings and can therefore be expected smaller.
  • not everyone is accustomed to a display of the English type "AM”, "PM” and some people may have difficulty reading the time.
  • a second category of digital timepieces includes four drums, namely a drum for minute units, a drum for tens of minutes, a drum for hour units and a drum for tens of hours.
  • Such timepieces make it possible to display the twenty-four hours of a day by means of drums of smaller dimensions comprising at most ten markings of "0" to "9".
  • these are timepieces such as electric clocks, each drum is driven individually by a motor. It is therefore difficult to integrate such an electric mechanism in a timepiece of the wristwatch type.
  • the document US 2,734,338 discloses a drum time display mechanism comprising a first drum indicating the seconds, a second drum indicating the minute units, a third drum indicating the tens of minutes, a fourth drum indicating the units of the hours and a fifth, and last drum indicating the tens of hours.
  • the fourth drum of this time display mechanism which indicates the units of the hours is not able, at midnight passage, to pass directly from the graduation "3" to the graduation "0" without going through the graduation "4".
  • the present invention aims to overcome the aforementioned drawbacks as well as others by providing a timepiece with digital display comprising four drums in which a solution is provided to the passage of the digital display from 23:59 to 00:00.
  • the present invention relates to a timepiece comprising a mechanical or electromechanical movement and provided with a digital display with four drums kinematically linked to each other, the first of these drums indicating the minute units by means of a graduation (0-1-2-3-4-5-6-7-8-9), the second indicating the tens of minutes by means of a graduation (0-1-2-3-4-5), the third indicating the hours units by means of a graduation (0-1-2-3-4-5-6-7-8-9) and the fourth indicating the tens of hours by means of at least one graduation (0-1-2), the four drums thus providing a digital display of the current time over twenty-four hours, the third drum comprising first means which cooperate with second means carried by the fourth drum to allow the third the drum to advance one tick per hour in normal time and move from graduation "3" to graduation "0" during the passage of the display from 23:59 to 24:00 characterized in that the first means comprise a differential mechanism with two inputs, a first input being constituted by the movement of the watch, and the second input being
  • the present invention provides a timepiece with digital display by means of drums capable of displaying the time over twenty-four hours and manage the passage of the display from 23:59 to 00:00.
  • the digital display mechanism with drums according to the invention can be integrated in any type of timepiece and, in particular, in a wristwatch.
  • the present invention thus provides a wristwatch whose digital nature and purely mechanical display of the current time has an original character that differs clearly from conventional time displays by means of needles.
  • the second means comprise a gear train which releases the second differential input only when the display changes from 23:59 to 00:00.
  • the present invention proceeds from the general inventive idea of providing a timepiece comprising a four-drum digital time display in which a compact solution allowing its arrangement in a wristwatch is brought to the passage of the watch. digital display from 23:59 to 00:00.
  • This digital display mechanism 1 essentially comprises a finishing gear train 100, a display mechanism drum 200 units of minutes, a drum display mechanism 300 tens of minutes, a drum display mechanism 400 hours units and a drum display mechanism 500 tens of hours.
  • the finishing gear train 100 comprises a cylinder 102 which drives a medium-sized wheelchair 104 itself engaged with an average wheel 106 consisting of a medium gear 108 and an additional average gear 110.
  • the additional gear 110 meshes with an intermediate gear 112 comprising a driven gear 114 and a gear box 116.
  • the gear box 116 drives, via an input pinion 118, an axis of the minute units 202 which carries a drum of the minute units 204.
  • This drum 204 indicates the units of minutes by means of a graduation (0-1-2-3-4-5-6-7-8-9) printed or engraved on its periphery and moves continuously at the speed of a lap in ten minutes in front of a minute unit counter (not shown).
  • An output wheel 206 fixed on the axis of the minute units 202, meshes with a second mobile 208 via an intermediate mobile 210 consisting of a pinion 212 and a wheel 214.
  • the system is completed by standard elements such as an escape wheel, an anchor and an oscillator (not shown).
  • the minute unit axis 202 carries a tens of minute trainer 302 having two cut teeth 304 out of a total of twenty teeth and a tens minute limit disk 306 having a notch 308 indexed to the spacing between the two. 304 carved teeth of the trainer tens of minutes 302.
  • the tens of minute trainer 302 and the tens minute minute disk 306 rotate, driven by the unit axis of the units. minutes 202 on which is fixed the drum unit minutes 204. During this movement, the limiting disc tens of minutes 306 maintains in position an intermediate gear 308, a tooth 310 on two is truncated on part of its height .
  • the trainer tens of minutes 302 drives via its two teeth 304 the intermediate gear 308 in the space of about a minute.
  • the intermediate gear 308 drives with a pitch a pinion of tens of minutes 312 fixed on an axis of tens of minutes 314 which also carries a drum tens of minutes 316.
  • This drum 316 indicates the tens of minutes by means of a graduation (0-1-2-3-4-5) printed or engraved on its perimeter and which passes in front of a desk for tens of minutes (not shown).
  • the axis of tens of minutes 314 carries the drum tens of minutes 316 which performs a complete revolution in sixty minutes. It also carries a 402 hour unit trainer having two cut teeth 404 out of a total of twelve teeth and a 406 hours unit limiting disk having a notch 408 indexed to the spacing between the two cut teeth 404 of the coach of 402 hours units.
  • the trainer of the hours units 402 and the limitation disk of the hours units 406 turn, driven by the axis of the tens of minutes 314 on which is fixed the drum tens of minutes 316.
  • the limiting disc of the hours units 406 maintains in position an intermediate gear 409, a tooth 410 on two is truncated on a part of his height.
  • the driver of the hours units 402 drives via its two teeth 404 the intermediate gear 409 in the space of about a minute.
  • the intermediate gear 409 drives a pinion of the hour units 412 fixed on an axis of the hour units 414 which also carries a drum of the hour units 416 by one step.
  • This drum 416 indicates the units of hours. hours by means of a graduation (0-1-2-3-4-5-6-7-8-9) printed or engraved on its perimeter and which passes in front of an hour counter window (not shown) .
  • a first input gear 502 of a differential mechanism 504 advances one step at the same time as the axis of the hour units 414 to which it is attached.
  • a second input gear 506 of the differential mechanism 504 is stationary as described in detail below, the reason for the differential mechanism 504 is -1 between the first input gear 502 and the drum of the 416 hour units. It is therefore important to insert a reversal switch 508 of the direction of the differential 504 between the first input gear 502 and a satellite wheel 510 to find the right direction of rotation of the drum of the hour units 416 and the advance of a not the latter.
  • the principle of driving the drum tens of hours 512 is the same as for other drums.
  • the axis of the hour units 414 carries the drum of the hour units 416 which performs a complete revolution in twelve hours. It also carries a trainer of dozens of hours 514 comprising two truncated teeth 516 on a number of twenty teeth and a limit disk tens of hours 518 having a notch 520 indexed on the spacing between the two teeth 516 of the coach dozens of hours 514.
  • the trainer of the hours of 514 hours and the record of Limiting the tens of hours 518 rotate, driven by the axis of the hour units 414.
  • the limiting disc tens of hours 518 maintains in position an intermediate gear 522 which a tooth 524 on two is truncated on part of its height.
  • the trainer tens of hours 514 drives via its two teeth 516 the intermediate gear 522 in the space of about one hour. minute.
  • the intermediate gear 522 drives with a pitch a pinion of hours 526 fixed on an axis of tens of hours 528 which also carries a drum tens of hours 530.
  • This drum 530 indicates the tens of hours. hours by means of a graduation (0-1-2) or preferentially (0-1-2-0-1-2) printed or engraved on its perimeter and which passes in front of a window for tens of hours (not shown ).
  • the digital display mechanism of time 1 comprises a differential mechanism 504 whose first input is constituted by pinion 502 fixed on the axis of hours units 414, otherwise said by the movement of the watch, and whose second input is constituted by the pinion 506 which is released only during the passage from 23:59 to 00:00 as will be seen below.
  • the axis of the hour units 414 rotates, causing the first input gear to rotate 502.
  • the first input gear 502 drives, via the reversing gear 508, the satellite wheel 510 which is secured to a planet pinion 532 which itself meshes with a toothing 534 of the pinion 506 immobile.
  • the planet pinion 532 rolls on the toothing 534 of the pinion 506, driving the drum of the hour units 416 in rotation.
  • a third stage is provided on the axis of the hour units 414 as well as on the pinion of the tens of hours 526.
  • a trainer Midnight 536 has been added on the axis of the hour units 414.
  • the intermediate gear 522 also has a specific cut opposite the trainer for tens of hours 514.
  • the coach midnight 536 causes a step drum dozens of hours 530 via the intermediate gear 522 which drives the pinion of the tens of hours 526 attached to the axis of dozens of hours 528.
  • the disqu By limiting the tens of hours 518, a second notch 542 is indexed to the spacing between the two teeth 538 of the midnight trainer 536. The indication of the drum for tens of hours thus passes from 23:59 to 0x:00.
  • the digital time display mechanism displays an erroneous indication insofar as, if the drum of the tens of hours 512 indicates "0", the drum of the hour units 416 indicates meanwhile "4" because he has been trained only one step. It is therefore necessary to bring the drum unit hours 416 to the position where it indicates "0" is, in this case, to advance six steps, which corresponds to an angular displacement of 216 ° during which the indication of the units of the hour passes successively from the indication "4" to the indication "5" then "6" and until "0" is reached.
  • the drum tens of hours 530 rotates 60 °, bringing with it the axis of the tens of hours 528.
  • a corrective reference 544 units of hours with seven teeth cut 546 on a number of forty-nine teeth and whose teeth are indexed between the indications "2" and "0" of the drum dozens of hours 530.
  • This correcting correction of the hours units 544 carries a limiting disk 548 of the intermediate gear 550 which has a notch 552 indexed on the teeth of the corrector unit 544.
  • the limitation disk 548 positions the intermediate gear 550 having fourteen teeth 554, two of which, opposite, are truncated over part of their height.
  • the seven teeth of the corrector 544 drive the intermediate gear 550 a half turn (seven teeth out of fourteen).
  • the reason for the differential 504 is 2 between the second input gear 506 and the drum of the hour units 416 via the planet pinion 532.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electromechanical Clocks (AREA)

Claims (9)

  1. Uhrmachereistück, welches ein mechanisches oder elektromechanisches Uhrwerk aufweist, das mit einer digitalen Anzeige mit vier Trommeln (204, 316, 416, 530) ausgestattet ist, die untereinander kinematisch verbunden sind, wobei die erste (204) der Trommeln mittels einer Einteilung "0-1-2-3-4-5-6-7-8-9" die Einheiten der Minuten anzeigt, die zweite (316) mittels einer Einteilung "0-1-2-3-4-5" die Zehnerminuten anzeigt, die dritte (416) mittels einer Einteilung "0-1-2-3-4-5-6-7-8-9" die Einheiten der Stunden anzeigt und die vierte (530) mittels zumindest einer Einteilung "0-1-2" die Zehnerstunden anzeigt, wobei die vier Trommeln (204, 316, 416, 530) demnach eine digitale Anzeige der aktuellen Zeit über 24 Stunden bereitstellen, wobei die dritte Trommel (416) erste Mittel trägt, die mit zweiten Mitteln, welche von der vierten Trommel (530) getragen werden, zusammenwirkt, um es der dritten Trommel (416) zu erlauben, pro Stunde der Normalzeit eine Einteilung fortzuschreiten, d. h. zwischen 00h00 und 23h59, und von der Einteilung "3" zur Einteilung "0" während des Übergangs der Anzeige von 23h59 zu 00h00 überzugehen, dadurch gekennzeichnet, dass die ersten Mittel einen Differentialmechanismus (504) an zwei Eingängen aufweisen, wobei ein erster Eingang vom Uhrwerk der Uhr gebildet wird und wobei der zweite Eingang von den zweiten Mitteln, welche von der vierten Trommel (530) getragen werden, gebildet wird.
  2. Uhrmachereistück nach Anspruch 1, dadurch gekennzeichnet, dass der erste Eingang des Differentialmechanismus (504) ein Ritzel (502) aufweist, welches auf einer Achse der Stundeneinheiten (414) fixiert ist, welche die Trommel der Stundeneinheiten (416) trägt, wobei das Ritzel (502) über ein Umschaltzeigerstellrad (508) mit einem Satellitenrad (510) in Eingriff steht.
  3. Uhrmachereistück nach Anspruch 2, dadurch gekennzeichnet, dass die zweiten Mittel ein Ritzel (506) aufweisen, welches den zweiten Eingang des Differentials (504) nur während dem Übergang der Anzeige von 23h59 zu 00h00 frei gibt.
  4. Uhrmachereistück nach einem der Ansprüche 2 oder 3, dadurch gekennzeichnet, dass das Satellitenrad (510) mit einem Satellitenritzel (532) verbunden ist, welches selbst mit einer Verzahnung (534) des Ritzels (506) in Eingriff steht.
  5. Uhrmachereistück nach einem der Ansprüche 2 bis 4, dadurch gekennzeichnet, dass die Achse der Stundeneinheiten (414) einen Mitnehmer der Zehnerstunden (514) trägt, welcher zwei abgestumpfte Zähne (516) unter einer Anzahl von zwanzig Zähnen aufweist, wobei der Mitnehmer (514) während des Übergangs von der neunten zur zehnten Stunde und von der neunzehnten zur zwanzigsten Stunde ein Zwischenritzel (522) mitnimmt, welches selbst ein Ritzel der Zehnerstunden (526) mitnimmt, das auf einer Achse der Zehnerstunden (528) fixiert ist, welche die Trommel der Zehnerstunden (530) trägt.
  6. Uhrmachereistück nach Anspruch 5, dadurch gekennzeichnet, dass ein Mitternachtsmitnehmer (536), welcher von der Achse der Stundeneinheiten (414) getragen wird, zwei spitze Zähne (538) unter einer Zahl von zwanzig Zähnen aufweist, wobei die zwei Zähne um 144° gegenüber den Zähnen (516) des Mitnehmers der Zehnerstunden (514) verschoben sind, wobei allein zwei Zähne (540) unter einer Gesamtheit von zehn des Zwischenritzels (522) auf einem Abschnitt ihrer Höhe derart abgestumpft sind, dass während des Übergangs von 19h00 zu 20h00 der Mitnehmer der Zehnerstunden (514) die Zähne (540) des Zwischenritzels (522) im Hinblick auf die Zähne (538) des Mitternachtsmitnehmers (536) mitnimmt, damit während des Übergangs von der dreiundzwanzigsten zur vierundzwanzigsten Stunde der Mitternachtsmitnehmer (536) in einem Schritt die Trommel der Zehnerstunden (530) über das Zwischenritzel (522) mitnehmen kann.
  7. Uhrmachereistück nach Anspruch 6, dadurch gekennzeichnet, dass die Trommel der Zehnerstunden (530) von einer Achse der Zehnerstunden (528) getragen wird, auf welcher ein Korrekturzeigerstellrad (544) der Stundeneinheiten fixiert ist, welches sieben spitze Zähne (546) über eine Gesamtzahl von neunundvierzig Zähnen aufweist und von denen die Verzahnung zwischen den Anzeigen "2" und "0" der Stundentrommel (530) indiziert ist, wobei das Korrekturzeigerstellrad (544) bei einer halben Umdrehung ein Zwischenritzel (550) mitnimmt, welches vierzehn Zähne (554) aufweist, von denen zwei gegenüberliegende in einem Höhenabschnitt abgestumpft sind, und wobei ein auf derselben Achse wie das Zwischenritzel (550) angeordnetes Korrekturzeigerstellrad (556) seinerseits das zweite Ritzel des Eingangs (506) des Differentialmechanismus (504) über ein Eingangsmitnehmerritzel (560) mitnimmt.
  8. Uhrmachereistück nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, dass die Trommel der Minuteneinheiten (204) von einer Achse der Minuteneinheiten (202) getragen wird, auf welcher ein Mitnehmer der Zehnerminuten (302) und eine Begrenzungsscheibe der Zehner der Minuten (306) fixiert sind, welche in einem Schritt die Trommel der Zehnerminuten (316) während des Übergangs der Trommel der Minuteneinheiten (204) von der Anzeige "9" zur "0" mitnimmt.
  9. Uhrmachereistück nach einem der Ansprüche 1 bis 8, dadurch gekennzeichnet, dass die Trommel der Zehnerminuten (316) von einer Achse der Zehnerminuten (314) getragen wird, auf welcher ein Mitnehmer der Stundeneinheiten (402) und eine Begrenzungsscheibe der Stunden (406) fixiert sind, welche in einem Schritt die Trommel der Stundeneinheiten (416) während des Übergangs der Trommel der Zehnerminuten (316) von der Anzeige "5" zur "0" mitnimmt.
EP06806031.8A 2005-10-28 2006-10-04 Uhr mit digitaler anzeige Active EP1943564B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP06806031.8A EP1943564B1 (de) 2005-10-28 2006-10-04 Uhr mit digitaler anzeige

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP05023662A EP1780613A1 (de) 2005-10-28 2005-10-28 Uhr mit digitaler Anzeige
PCT/EP2006/009594 WO2007048487A2 (fr) 2005-10-28 2006-10-04 Piece d'horlogerie a affichage digital
EP06806031.8A EP1943564B1 (de) 2005-10-28 2006-10-04 Uhr mit digitaler anzeige

Publications (2)

Publication Number Publication Date
EP1943564A2 EP1943564A2 (de) 2008-07-16
EP1943564B1 true EP1943564B1 (de) 2015-04-15

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EP05023662A Withdrawn EP1780613A1 (de) 2005-10-28 2005-10-28 Uhr mit digitaler Anzeige
EP06806031.8A Active EP1943564B1 (de) 2005-10-28 2006-10-04 Uhr mit digitaler anzeige

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EP05023662A Withdrawn EP1780613A1 (de) 2005-10-28 2005-10-28 Uhr mit digitaler Anzeige

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WO (1) WO2007048487A2 (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ATE545072T1 (de) 2009-09-08 2012-02-15 Celsius X Vi Ii Mechanische digitale anzeige

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2734338A (en) * 1956-02-14 Zx-hour direct-reading clock
CH150975A (de) 1930-06-12 1931-11-30 Baer Hans Uhr.
US2645896A (en) * 1952-06-06 1953-07-21 Wickes Engineering And Constru 24-hour direct-reading clock
DE7328799U (de) 1973-08-07 1976-12-30 Esge Elektrouhren Gmbh, 7442 Neuffen Uhr mit elektrischem antrieb
JPS6013715B2 (ja) 1978-07-11 1985-04-09 ブラザー工業株式会社 光電式加工物案内装置

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EP1780613A1 (de) 2007-05-02
WO2007048487A3 (fr) 2007-10-11
WO2007048487A2 (fr) 2007-05-03
EP1943564A2 (de) 2008-07-16

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