US3827234A - Display device for calendar watch - Google Patents

Display device for calendar watch Download PDF

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Publication number
US3827234A
US3827234A US00385294A US38529473A US3827234A US 3827234 A US3827234 A US 3827234A US 00385294 A US00385294 A US 00385294A US 38529473 A US38529473 A US 38529473A US 3827234 A US3827234 A US 3827234A
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United States
Prior art keywords
gear
teeth
star wheel
watch
calendar
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Expired - Lifetime
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US00385294A
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English (en)
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K Imanishi
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Individual
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Individual
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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
    • G04B19/24—Clocks or watches with date or week-day indicators, i.e. calendar clocks or watches; Clockwork calendars
    • G04B19/243—Clocks or watches with date or week-day indicators, i.e. calendar clocks or watches; Clockwork calendars characterised by the shape of the date indicator
    • G04B19/247—Clocks or watches with date or week-day indicators, i.e. calendar clocks or watches; Clockwork calendars characterised by the shape of the date indicator disc-shaped
    • G04B19/253—Driving or releasing mechanisms
    • G04B19/25333—Driving or releasing mechanisms wherein the date indicators are driven or released mechanically by a clockwork movement
    • G04B19/25353—Driving or releasing mechanisms wherein the date indicators are driven or released mechanically by a clockwork movement driven or released stepwise by the clockwork movement
    • G04B19/2536—Driving or releasing mechanisms wherein the date indicators are driven or released mechanically by a clockwork movement driven or released stepwise by the clockwork movement automatically corrected at the end of months having less than 31 days
    • 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
    • G04B19/243—Clocks or watches with date or week-day indicators, i.e. calendar clocks or watches; Clockwork calendars characterised by the shape of the date indicator
    • G04B19/247—Clocks or watches with date or week-day indicators, i.e. calendar clocks or watches; Clockwork calendars characterised by the shape of the date indicator disc-shaped
    • G04B19/25—Devices for setting the date indicators manually

Definitions

  • SHEET 2 BF 2 BACKGROUND or THE INVENTION This invention relates to a compact calendar watch and has a structural arrangement of a minimum number of parts to achieve correct dates being displayed automatically for'one year from the. first of March to the end of February at which time an adjustment is made manually.
  • the present invention relates generally to a calendar watch and, more particularly, to a compact calendar watch having-a minimum number of parts and displaying correct dates automatically for one year from the first of March to the end of February at which time an adjustment is made manually.
  • the parts of the novel automatic correcting mechanism according to the present invention are made of a relatively small size whereby said mechanism may be incorporated with a conventional wrist watch movement to form a compact wrist watch unit.
  • a further object of the present invention is to provid a compact calendar watch which will automatically compensate for differences in the number of days between given months and will consequently always indicate the precise day of the month for a period of one year without any need for manual adjustments.
  • a still further object of the present invention is to provide a compact calendar watch of the foregoing general character having a simplified structurally arrangement for automatically advancing the indications of the days of the months for the year starting from the first of March to the end of February.
  • a still further object of the present invention is to provide a compact calendar watch having automatic correcting mechanisms which are capable of being 2 combined with the conventional wrist watch: movements.
  • a further object is to provide compact and simplified mechanisms for achieving the objects and results as referred to in the foregoing.
  • FIG 1 is a plan view of a compact calendar watch in accordance with a first embodiment of the invention, wherein, however, several parts thereof are shown only partially and the full lines and dotted lines represent the constituent parts thereof;
  • FIG. 2 is a cross sectional view of the positions of portions of the date calendar ring and the pawl-star mechanism on the 31st day;
  • FIG. 3 is a cross sectional view of the positions of portions of the date calendar ring engaging the watch movement part on the 31st day;
  • FIG. 4 is a side view of the principal parts shown in FIG. 1;
  • FIG. 5 is an enlarged plan view of the pawl-star mechanism
  • FIG. 6 is a portion of a similar view of FIG. 1, showing the parts slightly past the 31st day position;
  • FIG. 7 is a plan view of a compact calendar watch in accordance with the second embodiment of the inventron.
  • FIG. 8 is a detailed view, for illustration purpose, of the pawl-gear mechanism of FIG. 7 divided into nine parts;
  • FIG. 9 is a detailed view of the lever-gear mechanism of FIG. 7.
  • the compact calendar watch of the present invention includes a watch movement which is housed normally in a cylindrical structural arrangement.
  • numeral 1 denotes in a chain line in FIG. 1 a center gear which rotates once during the 24 hour day period.
  • the gear 1 is fixedly mounted to a lower portion of an hour wheel 21.
  • the gear 1 and hour wheel 21 are rotatably mounted on a shaft 30 that is associated with the support of the watch movement.
  • the hour wheel 21 is cooperatively connected with a pivotally mounted lever mechanism 24 via gears 22 and 23 of the watch movement.
  • the teeth of gear 1 engagingly mesh with the teeth of an adjacent larger gear 2 and for illustration purpose in FIG. 1 the interlocking or meshing teeth of the respective gears are shown partially in solid lines.
  • the gear 2 is mounted on a pin or stem 3.
  • a feed or drive pin 4 is fixed on the upper surface of the gear 2 and drives one tooth of a star wheel 5 in a 24 hour day.
  • the star wheel 5 as seen in dotted lines in FIG. 5 is illustrated as including nine teeth, numbered 101 through 109 consecutively.
  • the star wheel 5 is mounted on a center pin or stem 7.
  • a wheel member 6 has two cam-like portions thereon;
  • the control lever 10 1 5 As Shown in Table 1 the number of teeth required for Teslhemly Pressed by a sPrmg 11 whlch has a check one year is determined therefrom and the tooth num- P
  • the control lever mounted a Shaft ber of the last day of each month becomes as shown in A date calendar ring 25 has a flat annular surface and T bl 2, A il a d S pt b r b e number 107, has displayed thereon, a series of successlve date calena d J N v b r a d F br ary be ome number dar numerals l-3l and thus such numerals cover either 20 I 105.
  • tooth l4 obviously varys with the semonth days size star 0 11 lective position of a window frame of the calendar ring and the particular mounting position thereof on the k g 25 lg;
  • FIGS. 1 and 6 show pos1t1ons which have MAY me 102 JUNE 30 small 105 been arbitrarily set at the position of 3 oclock and TABLE 2-Continued month days size star tooth no.
  • APR 107 8 JUNE 105 9 SEPT 107 8 NOV I05 9 FEB I05 9 The number of teeth for star wheel 5 has been shown and described as nine, but it is to be understood that suchnumber may be 14, 16,17 or 18.
  • a star wheel having 17 teeth is provided with two pawl projections, but the other mentioned star wheels require four pawl projections.
  • the rotating angle for one day becomes smaller, and the instant star wheel having nine teeth that is capable of operating with two pawl projections has the largest rotating angle.
  • the reason for counting the number of teeth of the star wheel in an anticlockwise direction is that the star wheel is not rotated as such and thus the number of teeth may be counted. Therefore, in order to rotate the star wheel, it must be rotated in the opposite direction, namely in the clockwise direction. Also, when the position of the projection is determined by counting the number of teeth in the clockwise direction, a star wheel of a counter rotation is thus construed.
  • the center gear 1 being fixed to the lower portion of the hour wheel 21 that rotates twice a day being meshed with the gear train of the watch has a number of teeth which is one half of the number of teeth of the larger gear 2. Therefore the gear 2 is reduced in its speed to one rotation per day and the drive pin 4 being fixed to the upper surface of the particular tooth drives the star wheel 5 one tooth a day. Accordingly, the pawl wheel member 6 rotates one tooth per day in a similar manner.
  • the date calendar ring 25 being interlocked or meshed with a timekeeper mechanism is driven for each day by the watch movement, and accordingly makes the proper advancement, but other than for the small months, this presents no obstacle as there is no interference to its rotation.
  • the calendar makes the correct display automatically throughout the year once the March 1st date is correctly adjusted by the manual operation.
  • a small window is provided on the dial and the numerals 1 through 9 of the teeth number of the star wheel are arranged to be indicated on the upper surface of the pawl wheel member so as to be easily observed.
  • the tooth number 1 of Table l is made to appear on the window and'the date is set to the March 1st date together with the day of the week.
  • the hand is advanced to set it at the proper time.
  • the drive mechanism of the second embodiment has some similar parts having the same reference numerals and differs principally in the star wheel of the first embodiment has been replaced by a gear arrangement.
  • the gear 1 is fixedly mounted to an upper portion of the hour wheel 21 of the watch movement (it may be the lower portion depending on the design of the plate of the watch) and includes 16 teeth.
  • An adjacent and larger gear 2 is interlocked or meshed with the gear 1 and includes 32 teeth.
  • a gear member 5a is fixedly mounted to an upper portion of the gear 2 and is interlocked or meshed with an adjacent pinion 20 having 16 teeth.
  • the gear member 50 has 36 teeth and rotates l60 per 1 day.
  • Lever member 6b has two camlike portions thereon; namely, outwardly extending pawl projections 8 and 9 and rotates per day together with the axially mounted gear member 5a.
  • lever member 6b is pivotally mounted on a pin or stem 18 that is fixedly mounted to the upper portion of the gear member 5a in such a way that its head portion is enlarged so as not to be disengaged like the portion 19 of FIG. 9, and normally it is supported in a fixed position by means of a pin which has a play in the direction to prevent excessive load even if the tooth 14 of the date wheel is engaged at the end of the small month or the watch is rotated in the counterclockwise direction.
  • lever member 6b may be formed in various shapes as long as it can perform the required function.
  • the operation principle of the gear member a is similar to the star wheel 5 of the Embodiment 1.
  • the rotating angle of one day is equal to one tooth of the star wheel, namely 40, there takes place a similar meshing of the gear member 5a. Therefore the operation time is longer and thus it takes one day. Consequently the rotating angle for one day must be made larger, but if the angle becomes too large, the respective pawl remains in the rotating range of the one day of the gear member 5a.
  • the pawl thus is engaged with a tooth 14 to feed the calendar.
  • the selection must be made so that the pawls 8 and 9 are not present in the rotating range of the gear member 5a on the 31st day of the large month.
  • the selection technique will be described in the following.
  • FIG. 8 shows the division of a circle divided equally into nine parts for illustration purpose and is a view of the pawl arrangement having an angle of 40 which is the mechanical equivalent of the nine tooth arrangement of the star wheel.
  • the nine equally divided points are marked with the numbers from 101 through 109 similar to the equivalent numbering in Embodiment l.
  • the angle between one number and the next number is 40. Assume that one day equals to the rotation of 40; for an anticlockwise rotation, 101 is usedas the starting point; each month is sequentially checked to determine the pawl position which corresponds to the time of the star wheel. Therefore, this particular 40 is omitted.
  • the positions of the pawls having selective rotations of 200, 280, 320 for one day as shown in Table 4 have large rotating angles and thus short operating time. Therefore they are ideal in theory, but since the rotating angles are large, the pawls 8 and 9 remain in the rotating range of 1 day of the pawl arrangement on the 3 1 st date of the large month in feeding the calendar so that this arrangement cannot be used as a practical manner.
  • the numbers for pawl engagements for the end of a large month which have the rotation of 80 for one day are 107, 103, 108, respectively, as shown in Table 4.
  • pawlarrangements Two kinds of pawlarrangements can be used as the member 5a, but the pawl arrangement having rotation takes the longer operating time and it takes 12 hours and thus the pawl arrangement having 160 rota- 10 tion which can operate in 6 hours is preferable. Also,
  • This pawl arrangement performs l day-one tooth ro- 15 tation of the star wheel and the equivalent thereof and the rotating angle of oneday is large.
  • the position of the pawl is determined on the basis of 160 in the anticlockwise direction with 101 as the starting point. Therefore the angle for 101 is included in 160 in the clockwise rotation.
  • the position in the zero time is midnight of March 1st, the position of 101 becomes 12 PM of March 1st, and simultaneously it becomes the zero time of March 2nd. On an ordinary monthly day, however, this causes no trouble but at the end of a small operating range before the advancement of the date wheel.
  • the tooth 14 is engaged wth the pawl arrangemet.
  • the date wheel cannot make the advancement (although the pawl arrangement is allowed to have some play, it is better for the tooth 14 not to be engaged with the pawl) and it is arranged to be delayed in the assembly thereof by adding the foregoing angle to the position by which the date wheel can previously be advanced.
  • Caution must be exercised in that as the operation of the pawls 8 and 9 are continuous, excessive dalay is set and the tooth 14 comes to engage the pawl 8 for June and November at which time the pawl 9 operates. Therefore when the date of the date wheel 25 changes, the position is determined so that the operation is effected in such a way that the tooth 14 is not engaged between both pawls.
  • the pawl 8 is eliminated and only the pawl 9 is used, the start and termination of the operation become delayed for April and September, but the correctable pawl arrangement is formed in the morning of the 1 day.
  • Table 5 shows the numbers of each month and the date TABLE 4 MONTH DAY lurgc rotates 80 rotates 160 rotates 200 rotates 280 rotates 320 PAWL per per per per per no.
  • the pawl arrangement has already come in the V of one year of the pawl arrangement having 160 rotation and the numbers of the end of each month are the 9 numbers of month of the rotation of 160 in the Table enters the rotating range of 1 day of the next month and after about 6 hours, the remaining pawl 9 enters the operating range.
  • FIG. 7 shows the gear 1 having 16 teeth using the pawl arrangement having 160 rotation per one day.
  • the gear 1 is fixedly mounted to the hour wheel 21 and rotates twice a day and the meshing gear 2 having 32 teeth rotates once a day.
  • the pinion 20 fixedly mounted on the upper part of the gear 2 has 16 teeth, and therefore it takes the meshing gear 5a having 16 teeth a day to rotate.
  • the gear 5a has 36 teeth, and thus one tooth makes 10 and rotates 160.
  • the lever member 6b axially mounted with gear 5a rotates 160 per day.
  • the date wheel 25 being mounted with the conventional timekeeper mechanism makes the advancement of one tooth per day and thus there is no obstacle on the normal monthly days. Consequently, both elements do not interfere with each other in the advancement thereof.
  • the respective pawl (8 or 9) involved is engaged with the tooth 14 that is fixed to the date wheel 25 to correct the calendar automatically.
  • the gear 1 is eliminated and the gear 2 is meshed directly with the hour wheel 21.
  • the gear 2 then rotates twice a day and when the number of teeth of the pinion 26 is selected as eight, the same result can be obtained.
  • pawl 8 is eliminated, and thus, the pawl engagement that operates for April and September is eliminated. Consequently, it cannot operate in the previously selected time frame, and the pawl rection is delayed and completed by noon.
  • a compact calendar watch having a minimum number of component parts and being adapted for use with a watch movement and being adapted for automatically displaying the correct dates for one year from the first of March to the end of February, comprising in combination: a supporting shaft means having an axle associated with said watch movement, a date calendar ring.
  • said ring means having a flat annular surface and inner periphery teeth, said flat annular surface having thirtyone successive date calendar numerals displayed thereon, said ring means having thirty-one teeth on the inner periphery thereof and said teeth corresponding respectively to and adjacent to said thirty-one date calendar numerals on said flat annular surface; a first gear means axially and concentrically mounted on said sup porting shaft means; an hour wheel means coaxially mounted and operatively associated with said first gear means, said first gear means fixedly mounted on said hour wheel means; said hour wheel means being adapted to be operatively connected with said drive means of said watch movement for movement thereof;
  • a second gear'me ans offset from the axis of said supporting shaft means and meshing with said first gear means; a star wheel means offset from the axis of said supporting shaft means and said second gear means, said star wheel means having nine pointed teeth thereon; drive pin means fixedly mounted on said second gear means and drivingly connected with at least one tooth of said star wheel means; a wheel member axially mounted and fixedly attached to said star wheel means in one direction thereof.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electromechanical Clocks (AREA)
US00385294A 1972-08-03 1973-08-03 Display device for calendar watch Expired - Lifetime US3827234A (en)

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JP7867972A JPS5336343B2 (enrdf_load_stackoverflow) 1972-08-03 1972-08-03

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US00385294A Expired - Lifetime US3827234A (en) 1972-08-03 1973-08-03 Display device for calendar watch

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US (1) US3827234A (enrdf_load_stackoverflow)
JP (1) JPS5336343B2 (enrdf_load_stackoverflow)
CH (2) CH583932B5 (enrdf_load_stackoverflow)
DE (1) DE2339472A1 (enrdf_load_stackoverflow)

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4182109A (en) * 1977-08-22 1980-01-08 Citizen Watch Co., Ltd. Calendar mechanism for timepieces
US4188774A (en) * 1976-10-04 1980-02-19 Ebauches S.A. Electro-mechanical calendar timepiece
US4198808A (en) * 1977-06-03 1980-04-22 Citizen Watch Co., Ltd. Calendar timepiece
US4266289A (en) * 1977-11-30 1981-05-05 Kabushiki Kaisha Daini Seikosha Calendar correcting mechanism
US4271494A (en) * 1977-10-06 1981-06-02 Kabushiki Kaisha Daini Seikosha Correcting device for calendar in an analog type electronic watch
US4320476A (en) * 1978-07-10 1982-03-16 Jean-Claude Berney Sa Electronic watch with a device for controlling and driving the day of the month
EP0987609A1 (fr) * 1998-09-14 2000-03-22 Frédéric Piguet S.A. Mécanisme de quantième annuel pour mouvement d'horlogerie
US6108278A (en) * 1998-09-11 2000-08-22 Frederic Piguet S.A. Annual calendar mechanism for clockwork movement
US6118734A (en) * 1997-01-30 2000-09-12 Girard-Perregaux, S.A. Train of clockwork with perpetual Julian date
EP1251412A1 (fr) * 2001-04-18 2002-10-23 Progress Watch AG Mecanisme de quantième
US20070195649A1 (en) * 2003-08-12 2007-08-23 Frederic Crettex Calendar Corrector
US20090129207A1 (en) * 2007-11-21 2009-05-21 Mamoru Watanabe Calendar mechanism-attached timepiece having month indicator and date indicator
US20130162060A1 (en) * 2010-09-09 2013-06-27 Toshiaki Fukushima Oscillating stepping motor
EP3043217A1 (fr) 2015-01-12 2016-07-13 Rolex Sa Dispositif d'entraînement d'un mobile d'un mécanisme horloger de calendrier

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03153278A (ja) * 1989-11-10 1991-07-01 Matsushita Electric Ind Co Ltd 静電記録装置

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US203640A (en) * 1876-10-12 1878-05-14 Improvement in calendar-watches
US2286000A (en) * 1940-11-01 1942-06-09 Warren Telechron Co Calendar clock
US2709885A (en) * 1951-12-28 1955-06-07 Marinus T Van Kampen Calendar mechanism
US3438196A (en) * 1966-04-20 1969-04-15 Citizen Watch Co Ltd Quick-acting feed mechanism for day-and-date indicator means of timepiece
US3673789A (en) * 1970-06-13 1972-07-04 Citizen Watch Co Ltd Calendar timepiece with month advancement mechanism for 29,30,or 31 day months
US3716983A (en) * 1970-06-22 1973-02-20 Citizen Watch Co Ltd Calendar watch

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US203640A (en) * 1876-10-12 1878-05-14 Improvement in calendar-watches
US2286000A (en) * 1940-11-01 1942-06-09 Warren Telechron Co Calendar clock
US2709885A (en) * 1951-12-28 1955-06-07 Marinus T Van Kampen Calendar mechanism
US3438196A (en) * 1966-04-20 1969-04-15 Citizen Watch Co Ltd Quick-acting feed mechanism for day-and-date indicator means of timepiece
US3673789A (en) * 1970-06-13 1972-07-04 Citizen Watch Co Ltd Calendar timepiece with month advancement mechanism for 29,30,or 31 day months
US3716983A (en) * 1970-06-22 1973-02-20 Citizen Watch Co Ltd Calendar watch

Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4188774A (en) * 1976-10-04 1980-02-19 Ebauches S.A. Electro-mechanical calendar timepiece
US4198808A (en) * 1977-06-03 1980-04-22 Citizen Watch Co., Ltd. Calendar timepiece
US4182109A (en) * 1977-08-22 1980-01-08 Citizen Watch Co., Ltd. Calendar mechanism for timepieces
US4271494A (en) * 1977-10-06 1981-06-02 Kabushiki Kaisha Daini Seikosha Correcting device for calendar in an analog type electronic watch
US4266289A (en) * 1977-11-30 1981-05-05 Kabushiki Kaisha Daini Seikosha Calendar correcting mechanism
US4320476A (en) * 1978-07-10 1982-03-16 Jean-Claude Berney Sa Electronic watch with a device for controlling and driving the day of the month
US6118734A (en) * 1997-01-30 2000-09-12 Girard-Perregaux, S.A. Train of clockwork with perpetual Julian date
US6108278A (en) * 1998-09-11 2000-08-22 Frederic Piguet S.A. Annual calendar mechanism for clockwork movement
EP0987609A1 (fr) * 1998-09-14 2000-03-22 Frédéric Piguet S.A. Mécanisme de quantième annuel pour mouvement d'horlogerie
WO2002084413A1 (fr) * 2001-04-18 2002-10-24 Bianchi & Partners Ag Mecanisme de quantieme
EP1251412A1 (fr) * 2001-04-18 2002-10-23 Progress Watch AG Mecanisme de quantième
US20070195649A1 (en) * 2003-08-12 2007-08-23 Frederic Crettex Calendar Corrector
US7333397B2 (en) * 2003-08-12 2008-02-19 Vaucher Manufacture Fleurier S.A. Calendar corrector
CN100589047C (zh) * 2003-08-12 2010-02-10 弗勒里耶沃谢制造股份有限公司 日历校正器
US20090129207A1 (en) * 2007-11-21 2009-05-21 Mamoru Watanabe Calendar mechanism-attached timepiece having month indicator and date indicator
US8059492B2 (en) * 2007-11-21 2011-11-15 Seiko Instruments Inc. Calendar mechanism-attached timepiece having month indicator and date indicator
US20130162060A1 (en) * 2010-09-09 2013-06-27 Toshiaki Fukushima Oscillating stepping motor
US9529330B2 (en) * 2010-09-09 2016-12-27 Citizen Holdings Co., Ltd. Wrist watch oscillating step motor with sweep motion
EP3043217A1 (fr) 2015-01-12 2016-07-13 Rolex Sa Dispositif d'entraînement d'un mobile d'un mécanisme horloger de calendrier
US9471038B2 (en) 2015-01-12 2016-10-18 Rolex Sa Device for driving a mobile of a horological calendar mechanism

Also Published As

Publication number Publication date
CH1117573A4 (enrdf_load_stackoverflow) 1976-04-15
JPS4936370A (enrdf_load_stackoverflow) 1974-04-04
CH583932B5 (enrdf_load_stackoverflow) 1977-01-14
DE2339472A1 (de) 1974-02-21
JPS5336343B2 (enrdf_load_stackoverflow) 1978-10-02

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