EP1780613A1 - Uhr mit digitaler Anzeige - Google Patents

Uhr mit digitaler Anzeige Download PDF

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Publication number
EP1780613A1
EP1780613A1 EP05023662A EP05023662A EP1780613A1 EP 1780613 A1 EP1780613 A1 EP 1780613A1 EP 05023662 A EP05023662 A EP 05023662A EP 05023662 A EP05023662 A EP 05023662A EP 1780613 A1 EP1780613 A1 EP 1780613A1
Authority
EP
European Patent Office
Prior art keywords
drum
hours
tens
teeth
units
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP05023662A
Other languages
English (en)
French (fr)
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.)
Frederic Piguet SA
Original Assignee
Frederic Piguet SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Frederic Piguet SA filed Critical Frederic Piguet SA
Priority to EP05023662A priority Critical patent/EP1780613A1/de
Priority to EP06806031.8A priority patent/EP1943564B1/de
Priority to PCT/EP2006/009594 priority patent/WO2007048487A2/fr
Publication of EP1780613A1 publication Critical patent/EP1780613A1/de
Withdrawn legal-status Critical Current

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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
    • G04B19/20—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 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, characterized in that the third drum comprises first means which cooperate with second means carried by the fourth drum to allow the third drum to advance one tick per hour in normal time and to move from the graduation "3" to the graduation "0" during passage of the display from 23:59 to 24:00.
  • the present invention provides a timepiece with a digital display by means of drums capable of displaying the time over twenty-four hours and to 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 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 constituted by the second means carried by the fourth drum.
  • 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 drum display mechanism 200 of minute units, a drum display mechanism 300 of tens of minutes, a display mechanism with drum 400 units of hours 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 average gear wheel additional 110 meshes with an intermediate mobile 112 comprising a driven return 114 and a return gear 116.
  • the drive gear 116 drives, via an input pinion 118, an axis of the units of minutes 202 which carries a drum of the minute units 204.
  • This drum 204 indicates the minute units 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 one turn 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 disc of limitation of the hours units 406 maintains in position an intermediate gear 409 including a tooth 410 on two is truncated over part of its 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 tens of hours 514 and the limitation disk dozens of hours 518 turn, driven by the axis 414.
  • the limiting disk tens of hours 518 maintains in position an intermediate gear 522 of which one tooth 524 out of two is truncated over 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 dozens 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.
  • This trainer 536 has two cut teeth 538 on a number of twenty teeth, these two teeth being shifted by 144 ° with respect to the teeth 516 of the trainer for tens of hours 514.
  • 144 ° 4 * 36 °, or the angle between the hours units "9" and "3"
  • the intermediate gear 522 also has a specific cut opposite the trainer dozens 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 tens of hours 526 fixed on the axis of the tens of hours 528.
  • the limitation disc tens of hours 518 has a second notch 542 indexed on the spacing between the two 538 teeth of the coach of midnight 536. The indication of the drum tens of hours thus passes from 23:59 to Oxh00.
  • 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)
EP05023662A 2005-10-28 2005-10-28 Uhr mit digitaler Anzeige Withdrawn EP1780613A1 (de)

Priority Applications (3)

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

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP05023662A EP1780613A1 (de) 2005-10-28 2005-10-28 Uhr mit digitaler Anzeige

Publications (1)

Publication Number Publication Date
EP1780613A1 true EP1780613A1 (de) 2007-05-02

Family

ID=36943839

Family Applications (2)

Application Number Title Priority Date Filing Date
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

Family Applications After (1)

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

Country Status (2)

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EP (2) EP1780613A1 (de)
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

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
US2734338A (en) * 1956-02-14 Zx-hour direct-reading clock
DE7328799U (de) 1973-08-07 1976-12-30 Esge Elektrouhren Gmbh, 7442 Neuffen Uhr mit elektrischem antrieb
JPS5510948A (en) 1978-07-11 1980-01-25 Brother Ind Ltd Photoelectric workpiece guide apparatus

Patent Citations (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
JPS5510948A (en) 1978-07-11 1980-01-25 Brother Ind Ltd Photoelectric workpiece guide apparatus

Also Published As

Publication number Publication date
EP1943564A2 (de) 2008-07-16
WO2007048487A2 (fr) 2007-05-03
EP1943564B1 (de) 2015-04-15
WO2007048487A3 (fr) 2007-10-11

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