US3911667A - Instantaneous feed mechanism for a day-date timepiece - Google Patents

Instantaneous feed mechanism for a day-date timepiece Download PDF

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Publication number
US3911667A
US3911667A US352271A US35227173A US3911667A US 3911667 A US3911667 A US 3911667A US 352271 A US352271 A US 352271A US 35227173 A US35227173 A US 35227173A US 3911667 A US3911667 A US 3911667A
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United States
Prior art keywords
calendar
day
date
feed
disc
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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.)
Expired - Lifetime
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US352271A
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English (en)
Inventor
Katsuhiko Komiyama
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Citizen Watch Co Ltd
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Citizen Watch Co Ltd
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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
    • G04B19/25—Devices for setting the date indicators manually
    • 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
    • G04B19/25373—Driving or releasing mechanisms wherein the date indicators are driven or released mechanically by a clockwork movement driven or released stepwise by an energy source which is released at determined moments by the clockwork movement
    • G04B19/25386—Driving or releasing mechanisms wherein the date indicators are driven or released mechanically by a clockwork movement driven or released stepwise by an energy source which is released at determined moments by the clockwork movement manually corrected at the end of months having less than 31 days

Definitions

  • This invention relates in general to a quick acting calendar feed mechanism for a timepiece having a day and date calendar display means.
  • calendar feed mechanisms for feeding the day and date calendar display means.
  • the next succeeding calendar displays appear gradually at the re- .spective viewing windows over a period of several hours. Because of the limited viewing areas at these windows, it is rather difficult to determine the correct calendar displays during the transient period of 2 3 hours. This therefore represents a substantial drawback in this conventional timepiece.
  • the main object of the present invention therefore is to provide an improved instantaneous calendar feed mechanism adapted to prevent double calendar feeding and to allow a quick calendar correction at any time during 24 hours of a complete day.
  • FIG. I is a perspective view of a first embodiment showing several main working elements of the invention in their disassembled state;
  • FIG. 2 is a plan view of the first embodiment in its assembled state shown directly before the operation of an instantaneous calendar feed operation.
  • FIG. 3 is a similar view to FIG. 2, wherein, however, the constituent parts are seen directly after the execution of the instantaneous calendar feed;
  • FIG. 4 is an enlarged sectional view taken substantially along a section line A--A in FIG. 3.
  • FIG. 5 is a plan view of several preferred constituent parts shown during the operation of data calendar quick correcting operation in the foregoing embodiment.
  • FIG. 6 is a plan view of essential working parts of the foregoing embodiment shown during the day calendar quick correcting operation.
  • FIG. 7 is an exploded perspective view of several working parts of a second embodiment of the invention.
  • FIG. 8 is a plan view of the essential parts of the second embodiment shown directly after the operation of the instantaneous calendar correcting mechanism.
  • FIG. 9 is an enlarged plan view of several preferred working parts of the second embodiment, shown during the operation of the data calendar quick correcting operation.
  • FIGS. 10 12 are plan views of the second embodiment, shown during its several working stages.
  • FIG. 13 is a sectional view taken substantially along a section line BB shown in FIG. 12.
  • numeral 1 represents a stationary pin which is studded on a pillar plate, (not shown,) of a timepiece movement, and carries rotatably thereon a date gear 2, the latter being centrally perforated zit-2b for this purpose and further formed with a curved slot 2a, as shown, positioned in relative proximity to the central bore 2b.
  • the slot 2a loosely receives a pin 3a which integrally depends from the back or lower surface of a control cam 3 ,having a spiral disc configuration, as most clearly'seen from FIG. 1.
  • the spiral-shaped control edge of thecam 3 is represented at 3b, cooperating with a concavely curved follower edge 40 of a calendar feed lever 4 piv'otably mounted at 4a and having a motionrec'eivingprojection 4d which is kept in permanent pressure contact with an elongated urging spring 5 (only partially shown for convenience).
  • the cam 3 is centrally perforated at 3c for rotatable mounting on the pin 1.
  • An irregular-shaped intermediate motiontransmitting disc 6 is also centrally bored at 6g for rotatable mounting on the pin 1, and formed with an elongated recess 6a which permanently receives a drive pin 4b fixedly attached to the tip end of a curved elongated arm 4d of the feed lever 4. Thus, movement of the feed lever 4 will be transmitted to the intermediate disc 6.
  • Numerals 7 and 8 represent a data drive pawl and a day drive pawl, respectively, which are rotatably mounted on the disc 6 by means of respective mounting pins 9 and 10.
  • these pawls 7 and 8 are formed with perforations 7a and 8a for snugly receiving respective mounting pins 9 and 10 which are adapted for snugly passing through respective perforations 6b and 6c of the disc 6.
  • An urging spring assembly 11 is mounted on the disc 6 in a relatively stationary way.
  • the assembly 11 is formed with a perforation l1 a and a curved arm 11d, said perforation being kept in engagement with a pin 6d which projects integrally from the disc 6.
  • the curved arm 11d defines a substantially semi-circular recess lle for snugly embracing a circular flange 611 formed around the perforation 6g on the disc 6.
  • the spring assembly 11 is provided with a pair of spring arms 11b and 110 to cooperate with motion-receiving convex portions and 8d formed on the pawls 7 and 8, respectively.
  • Pawl 7 has a stationary pin 7b extending upwards and downwards in the body of said pawl, as seen from FIG. 1.
  • the disc 6 is formed with a concaved curved portion 6e designed and arranged to cooperate with the pin 7!; for limiting the rotational range of the pawl 7.
  • the disc 6 is also formed with a concaved curved portion 6f which is designed and arranged to cooperate with a thickened tip end portion of the pawl 8 to limit the rotational range of the latter.
  • Pawl 8 is formed with an actuating or feeding portion 8b adapted for cooperation with a day feed intermediate gear 23, as will be more fully described hereinafter.
  • the calendar feed mechanism comprising the previously described and other operating parts is shown in a schematic plan view showing its nonoperating position, in direct advance of operation of the instant calendar feeding operation.
  • numeral 21 schematically represents a cannon wheel which is rotatably mounted in a conventional manner through a cannon pinion, (not shown), on the pillar plate.
  • the cannon wheel 21 has its integral shaft 21a on which a day star wheel 24 is'rotatably mounted.
  • a stepped or composite gear 22 comprises a larger gear element 22a and a small gear element 22b made integral therewith and is rotatably mounted through a stud pin 220 on the pillar plate, (not shown).
  • the larger gear element 220 meshes with said cannon wheel 21, while the smaller gear 22b meshes with date gear 2, shown only schematically in FIG. 2.
  • the composite gear 22 serves as an intermediate date feed element.
  • Numeral 23 represents schematically a day feed gear which is rotatably mounted on a pin 27 studded on a supporting bridge 26 (which is only partially shown), although it is in practice fixedly mounted on the pillar plate.
  • Numeral 29 represents a conventional date dial ring, only partially shown, having thirty one integral teeth 29a, 29b said dial ring being mounted rotatably on the pillar plate, as is commonly known to those skilled in the art.
  • Numeral 28 represents a conventional calendar plate, although it is shown only partially in schematic for the purpose of convenience because it is well known.
  • This calendar plate 28 may take the shape of a concentric disc, ring or certain modifications thereof, as is commonly known, and is fixedly attached to the pillar plate, thus constituting a stationary member of the timepiece movement.
  • the calendar plate 28 is formed with at least several outer concentric arcshaped guide portions, (not shown), which are adapted for sliding contact with the feed teeth on the date dial ring 29 for preventing the slipping out of the latter from position.
  • an overfeed prevention means preferably in the form of an elongated resilient arm 28a, is fixedly attached to or made integral with the calendar plate 28, as will be more fully described hereinafter.
  • Date gear 2 receives motion from cannon wheel 21 through composite gear 22, so as to perform a complete revolution every 24 hours.
  • the pin 3a will engage the wall of the slot 2a, thus cam 3 performs the same rotation.
  • the feed lever 4 will thus rise along the peripheral cam rise surface, thereby the spring 5 is gradually flexed.
  • Numeral 34 represents a day calendar quick correction lever which is rotatably mounted on a pin 35 studded on the plate.
  • Numeral 36 represents a date calendar correction lever spring which is fixedly mounted on the pillar plate by means of positioning pin 37 and screw 38.
  • the former lever 34 is urged to rotate in clockwise direction under the influence of the spring 36, but this rotational movement is controlled by a stationary stop pin 39.
  • Numeral 40 represents an operating member for a quick correction of the day calendar and is arranged to be manipulated by an operator from outside.
  • the operating member 40 is so designed and arranged that when it is pushed-in for the execution of day calendar quick correction, the wheel 23 is rotated without hindrance to perform the required quick correction.
  • day calendar is also fed in a corresponding manner by means of the pawl 8 through the wheel 23.
  • day star wheel 24 is fed a day calendar division.
  • the tip end 8b of the pawl 8 will be positioned between resilient part 26a of the bridge 26 and a tooth 23a of the wheel 23.
  • the resilient part 26a may be, when necessary, designated and arranged to project from a proper part of the bridge 26.
  • tooth 23a will ride over the tip end 8b of pawl 8 without hindrance. In this way, the quick correction can be "date calendar dial supporting bridge. But, it should be mentioned that its operation is the same as before.
  • FIG. 9 the relationship among the several constituent parts is shown, when performing a quick calendar correcting operation directly upon the completion of a date calendar dial feed, wherein, however, the quick correction mechanism has been omitted from the draw-
  • the date calendar dial 29 is rotated clockwise and the tooth 29f, by way of example, is brought into contact with the projection 4:- on lever 4.
  • the calendar dial tooth will also contact with the pawl 7. But, the dial tooth can still advance by flexing the spring 11. In this way, the quick calendar correcting operation can be performed without hindrance and at any desired chance.
  • the day and date double feed preventing member constitutes a rigid one.
  • FIG. represents the related parts directly after the execution of the feed.
  • the day calendar dial will exert its effort to excessively turn the wheel 23 by virtue of the inertia caused by said dial.
  • an excess rotation of the wheel 23 is prevented by the fact that the tooth 23a is checked by the tip end 41a of double feed prevention member'4l through the intermediary of the bent-up end 8b of pawl 8.
  • the prevention pawl shown at 43 is rotatably mounted on a pin '44 studded on the pillar plate, (not shown). There are provided two stationary stop pins 45, 46 for the control of the rotational range of the pawl 43 which is caused to rotate by the disc 6, the latter being in turn rotated by the feed lever 4. By the rotation of the disc 6,'day feed wheel 23 is fed correspondingly.
  • the feed pawl 8 is caused to move into the idle space between two neighboring teeth of day feed wheel 23, by being urged by the lever tip end 4d, to prevent a double feed.
  • the quick correction may be made by the action of lever 34, so as to rotate the wheels 24 and 23.
  • the tooth 2312 will exert a pressure upon the bent-up portion at 43a of the prevention pawl 43 which is thus rotated around the pivot 44 and the feed lever 4 is rotated correspondingly around its pivot 30.
  • the spring 5 is flexed.
  • the dotted lines represent such position of the related parts that the pawl 43 is properly rotated by contact with tooth 23b and the wheel 23 is about to be moved one step. Therefore, the quick calendar correction can be executed at any time.
  • the double feed prevention member is made rigid.
  • Numeral 47 represents a slot formed through the pillar plate, (not shown), and numeral 48 shows the shaft of the day feed wheel.
  • the wheel 23 is positioned by a positioning member 49 the root end of which is fixedly mounted on the pillar plate by a set screw 50 and a positioning pin 51.
  • the member 49 has an elongated resilient arm 49 which is so dimensioned that it can not be flexed when subjected to a weak force applied during the regular calendar feed. It is however flexed by a stronger force produced during operation of the quick calendar correction, when the wheel is turned.
  • an instantaneous calendar feed mechanism comprising the combination of:
  • a date gear rotatably mounted on said pillar plate and driven by the time-keeping gear train of said timepiece to make one complete revolution every twenty-four hours;
  • a calendar feed lever pivotally mounted on said pillar plate for cooperation with said control cam to retate quickly through a predetermined angle every twenty-four hours;
  • a spring attached to the pillar plate and connected for biasing said calendar feed lever towards its camcooperating position
  • an intermediate disc pivotably mounted on the pillar plate and adapted to be driven by said calendar feed lever through a predetermined angle upon the rotation of said calendar feed lever;
  • a spring-biased date drive pawl pivotably mounted on said intermediate disc and operatively connected to said disc to move quickly upon the angular movement of said disc and thereby advance said date calendarone unit;
  • a spring-biased day drive pawl pivotably mounted on said intermediate disc and operatively connected to said disc to move quickly upon the angular movement of said disc and thereby advance said day calendar one unit;
  • a calendar over feed prevention means comprising respectively a first and a second spring arm mounted on said pillar plate and connected with said first and second spring arms opposing the rotational inertia of both said date and day calendars by pressure contact against said date drive pawl and said day drive pawl, respectively, upon completion 'of the instantaneous feed of both said calendars said second spring arm adapted to permit a resilient escapement movement upon receiving a quick correction reverse movement from said day calendar quick correction means.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electromechanical Clocks (AREA)
  • Mechanical Control Devices (AREA)
US352271A 1972-04-19 1973-04-18 Instantaneous feed mechanism for a day-date timepiece Expired - Lifetime US3911667A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1972045656U JPS5241424Y2 (ja) 1972-04-19 1972-04-19

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US (1) US3911667A (ja)
JP (1) JPS5241424Y2 (ja)
DE (1) DE2319907C3 (ja)
GB (1) GB1433038A (ja)

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4059953A (en) * 1976-06-18 1977-11-29 General Time Corporation Timepiece calendar indexing apparatus
US4188777A (en) * 1976-10-04 1980-02-19 Ebauches S.A. Electro-mechanical calendar watch
FR2496288A1 (fr) * 1980-12-11 1982-06-18 Timex Corp Dispositif de reglage de la date pour montre a aiguilles
US4372687A (en) * 1978-06-23 1983-02-08 Krasovsky Boris P Instantaneous calender device with spring and tappet mounted on rotary shifter
CH674913GA3 (en) * 1988-02-16 1990-08-15 Data mechanism for watch - includes spring-biased pivoting lever actuated by pin on 24 hour wheel to advance date indicator
US5384755A (en) * 1991-12-20 1995-01-24 Eta Sa Fabriques D'ebauches Timepiece of the mechanical or electromechanical type including a drive wheel controlling at least one display system such as a date display
EP0895142A1 (en) * 1997-01-17 1999-02-03 Seiko Epson Corporation Display device and watch with same
US5956294A (en) * 1996-12-26 1999-09-21 Seiko Instruments Inc. Multi-functional timepiece
US6490231B1 (en) * 1997-12-25 2002-12-03 Seiko Instruments Inc. Intermittent feeding mechanism
US6687191B2 (en) * 2000-03-31 2004-02-03 Seiko Instruments Inc. Calendar timepiece
US20060034157A1 (en) * 2002-10-30 2006-02-16 Jean-Pierre Charpier Date indicator mechanism for watch movement
US20090067295A1 (en) * 2006-12-23 2009-03-12 Gil Ramon On-demand display device for a timepiece
WO2013102600A3 (fr) * 2011-12-27 2013-09-06 Rolex S.A. Ressort pour mouvement horloger
WO2013102598A3 (fr) * 2011-12-27 2013-09-06 Rolex S.A. Ressort pour mouvement horloger
WO2014033510A1 (fr) 2012-08-28 2014-03-06 Breitling Ag Mécanisme d'affichage pour pièce d'horlogerie
US8710135B2 (en) 2009-12-21 2014-04-29 Basf Se Composite materials comprising aggregate and an elastomeric composition
US9464003B2 (en) 2009-06-24 2016-10-11 Basf Se Method of producing a composite material using a mixing system
US9856363B2 (en) 2010-12-29 2018-01-02 Basf Se Colored composite pavement structure

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0615823Y2 (ja) * 1988-07-19 1994-04-27 川崎重工業株式会社 小型滑走艇

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3703805A (en) * 1970-03-11 1972-11-28 Junghans Gmbh Geb Electric timepiece with date dial
US3726085A (en) * 1971-06-07 1973-04-10 Back Sivalls & Bryson Inc Preventing thermal pollution of ambient water used as a process cooling medium
US3748848A (en) * 1971-10-29 1973-07-31 Ebauches Sa Day-date timepiece
US3775965A (en) * 1971-05-05 1973-12-04 Ebauches Sa Calendar timepiece

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3703805A (en) * 1970-03-11 1972-11-28 Junghans Gmbh Geb Electric timepiece with date dial
US3775965A (en) * 1971-05-05 1973-12-04 Ebauches Sa Calendar timepiece
US3726085A (en) * 1971-06-07 1973-04-10 Back Sivalls & Bryson Inc Preventing thermal pollution of ambient water used as a process cooling medium
US3748848A (en) * 1971-10-29 1973-07-31 Ebauches Sa Day-date timepiece

Cited By (33)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4059953A (en) * 1976-06-18 1977-11-29 General Time Corporation Timepiece calendar indexing apparatus
US4188777A (en) * 1976-10-04 1980-02-19 Ebauches S.A. Electro-mechanical calendar watch
US4372687A (en) * 1978-06-23 1983-02-08 Krasovsky Boris P Instantaneous calender device with spring and tappet mounted on rotary shifter
FR2496288A1 (fr) * 1980-12-11 1982-06-18 Timex Corp Dispositif de reglage de la date pour montre a aiguilles
CH674913GA3 (en) * 1988-02-16 1990-08-15 Data mechanism for watch - includes spring-biased pivoting lever actuated by pin on 24 hour wheel to advance date indicator
CN1040477C (zh) * 1991-12-20 1998-10-28 Eta草图制造公司 带有显示系统的钟表
US5384755A (en) * 1991-12-20 1995-01-24 Eta Sa Fabriques D'ebauches Timepiece of the mechanical or electromechanical type including a drive wheel controlling at least one display system such as a date display
US5956294A (en) * 1996-12-26 1999-09-21 Seiko Instruments Inc. Multi-functional timepiece
EP0895142A1 (en) * 1997-01-17 1999-02-03 Seiko Epson Corporation Display device and watch with same
EP0895142A4 (en) * 1997-01-17 2000-04-05 Seiko Epson Corp DISPLAY DEVICE AND WATCH WITH THE SAME
US6490231B1 (en) * 1997-12-25 2002-12-03 Seiko Instruments Inc. Intermittent feeding mechanism
US6687191B2 (en) * 2000-03-31 2004-02-03 Seiko Instruments Inc. Calendar timepiece
US20060034157A1 (en) * 2002-10-30 2006-02-16 Jean-Pierre Charpier Date indicator mechanism for watch movement
US7382693B2 (en) * 2002-10-30 2008-06-03 Zenith International S.A. Date indicator mechanism for watch movement
CN100416429C (zh) * 2002-10-30 2008-09-03 泽尼斯国际有限公司 用于手表机心的日期指示机构
US7782717B2 (en) * 2006-12-23 2010-08-24 Franck Müller Watchland S.A. On-demand display device for a timepiece
US20090067295A1 (en) * 2006-12-23 2009-03-12 Gil Ramon On-demand display device for a timepiece
US10040721B2 (en) 2009-06-24 2018-08-07 Basf Se Method of producing a composite material using a mixing system
US9896381B2 (en) 2009-06-24 2018-02-20 Basf Se Method of producing a composite material using a mixing system
US9464003B2 (en) 2009-06-24 2016-10-11 Basf Se Method of producing a composite material using a mixing system
US9631088B2 (en) 2009-12-21 2017-04-25 Basf Se Composite pavement structures
US10480128B2 (en) 2009-12-21 2019-11-19 Basf Se Composite pavement structures
US10253460B2 (en) 2009-12-21 2019-04-09 Basf Se Composite pavement structure
US8710135B2 (en) 2009-12-21 2014-04-29 Basf Se Composite materials comprising aggregate and an elastomeric composition
US9850625B2 (en) 2009-12-21 2017-12-26 Basf Se Composite pavement structures
US9505931B2 (en) 2009-12-21 2016-11-29 Basf Se Composite pavement structure
US9856363B2 (en) 2010-12-29 2018-01-02 Basf Se Colored composite pavement structure
US9471037B2 (en) 2011-12-27 2016-10-18 Rolex Sa Spring for clock movement
US9395691B2 (en) 2011-12-27 2016-07-19 Rolex Sa Spring for clock movement
CN104011607A (zh) * 2011-12-27 2014-08-27 劳力士有限公司 用于钟表机芯的游丝
WO2013102598A3 (fr) * 2011-12-27 2013-09-06 Rolex S.A. Ressort pour mouvement horloger
WO2013102600A3 (fr) * 2011-12-27 2013-09-06 Rolex S.A. Ressort pour mouvement horloger
WO2014033510A1 (fr) 2012-08-28 2014-03-06 Breitling Ag Mécanisme d'affichage pour pièce d'horlogerie

Also Published As

Publication number Publication date
DE2319907C3 (de) 1975-12-18
GB1433038A (en) 1976-04-22
DE2319907A1 (de) 1973-10-25
JPS496076U (ja) 1974-01-19
JPS5241424Y2 (ja) 1977-09-19
DE2319907B2 (de) 1975-04-03

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