US3668864A - Calendar watch setting stem with displaceable spring biased gear - Google Patents

Calendar watch setting stem with displaceable spring biased gear Download PDF

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Publication number
US3668864A
US3668864A US166753A US3668864DA US3668864A US 3668864 A US3668864 A US 3668864A US 166753 A US166753 A US 166753A US 3668864D A US3668864D A US 3668864DA US 3668864 A US3668864 A US 3668864A
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US
United States
Prior art keywords
stem
gear
winding
spline
date
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.)
Expired - Lifetime
Application number
US166753A
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English (en)
Inventor
Mamoru Miyasaka
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.)
Suwa Seikosha KK
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Suwa Seikosha KK
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Filing date
Publication date
Application filed by Suwa Seikosha KK filed Critical Suwa Seikosha KK
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Publication of US3668864A publication Critical patent/US3668864A/en
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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
    • G04B27/00—Mechanical devices for setting the time indicating means
    • G04B27/02—Mechanical devices for setting the time indicating means by making use of the winding means
    • G04B27/04—Mechanical devices for setting the time indicating means by making use of the winding means with clutch wheel

Definitions

  • the watch stem has three positions available for independently setting the time. setting the date and winding the watch.
  • Independence of these functions is achieved by the use of gears mounted slidably on a spline which is part of the stem, and by a gear displaceable transversely of its axis, which makes it possible to move the spline into contact with the gears without causing damage even when the teeth of the spline and the corresponding teeth in the gears are not in register.
  • a spline In a calendar watch, a spline is fixed and rotates with the stem.
  • the stem can be placed axially in any of three positions. In the innermost position a winding pinion gear is meshed with the spline and rotation of the stem actuates a winding train through a gear which can be moved transversely of its axis.
  • the winding pinion gear is separated axially from the spline when the stem is in outermost position for setting the time. If the winding pinion gear is out of registry with the spline when the stem is returned to the innermost position, the displaceable gearmoves transversely, thereby preventing damage to teeth of the spline and the winding pinion gear.
  • an object of the present invention is to provide a calendar watch mechanism having fewer parts than conventional mechanisms.
  • Another object of the invention is to provide a calendar changing mechanism occupying less space than conventional mechanisms and making it possible to decrease the overall size of the watch.
  • a further object of the invention is to lower the cost of a calendar changing mechanism by decreasing the number of parts necessary.
  • Yet another object of the invention is to avoid damage to gear teeth when moving the watch stem inwardly.
  • FIG. 1 is an enlarged, cut-away plan view of a setting and changing mechanism in accordance with the present invention with the stem in innermost position;
  • FIG. 2 is a similar view of the same mechanism with the stem in intermediate position
  • FIG. 3 is a similar view of the same mechanism with the stem in outermost position
  • FIG. 4 is a similar view of the same mechanism with the stem in innermost position but disconnected from the winding mechanism;
  • FIG. 5 is a side, elevational view in partial cross section of the mechanism of FIG. 1;
  • FIG. 6 is similar to FIG. 5 and corresponds to FIG. 2;
  • FIG. 7 is similar to FIG. 5 and corresponds to FIG. 3;
  • FIG. 8 is similar to FIG. 5 and corresponds to FIG. 4.
  • a stem 11 engages a spring 12 at one of three detents 13.
  • a winding pinion gear 14 is slidably mounted on a spline 15 (FIGS. 1 and 5) fixed to the stem 11.
  • the stem 11 is parallel to a support plate 16.
  • the spline 15 also has mounted thereon, when the stem is in innermost position, a date drive gear 17.
  • a spring 18 urges winding pinion 14 and thereby date drive gear 17 to mesh with spline 15.
  • a gear 19, displaceable transversely of its axis, is supported within openings 21 and 22 in bridges 23 and 24.
  • the transversely displaceable gear 19 is urged by spring 25 to engage ratchet wheel 26 when the stem 11 is rotated in clockwise direction as viewed from the top of FIG. 1.
  • the transversely displaceable gear 19 moves against the urging of the spring 25 and is disengaged from ratchet wheel 26.
  • both the winding pinion gear and the date drive gear are displaced axially from the spline, and therefore do not rotate when the stem is rotated.
  • the displacement is effected by edge 28 of support 16.
  • pinion gear 29 meshes with corresponding crown gear 31 when the stem 11 is in the outermost position.
  • the stem 11 is once more shown in innermost position in FIGS. 4 and 8 immediately after being returned to this position.
  • the stem 11 is pushed to the innermost position, if the teeth of the spline do not register with those of the winding pinion gear 14, then the transversely displaceable gear 19 is moved to the disengaged position so that breakage of teeth does not occur.
  • the stem 11 is rotated and teeth of the spline register with those of the winding pinion gear, the winding pinion gear and the date drive gear move onto the spline under the urging of spring 18 and the transversely displaceable gear 19 moves into the position in which it engages the winding pinion gear 14.
  • a clutch wheel is engaged with the spline portion of the stem, and rotation of the stem is transmitted to a winding pinion and a crown wheel so that the main spring is wound.
  • the movement of the transversely displaceable gear 19 makes it possible to eliminate a clutch wheel, a clutch lever and a clutch lever screw.
  • the winding pinion gear 14 is movable axially, so that both clockwise and counterclockwise rotation of the date wheel can easily be performed. Consequently the number of parts required for this system is smaller, which facilitates manufacture of the watch in mass production, lowers the cost and lowers the amount of space needed for the assembly.
  • the mechanism is suitable for use with automatically wound watches, since when the watch spring is completely wound, a transversely displaceable gear is moved similarly so that it is disengaged from the winding pinion gear and rotation is not transmitted to the stem 1 1.
  • An improved winding, date changing and time setting mechanism for a calendar watch comprising a stem rotatably mounted in said watch and slidable to an outermost, anintermediate and an innermost position, a toothed spline fixed to said stem for rotation therewith, a winding pinion gear having internal teeth adapted to mesh with the teeth of said spline and slidably mounted on and removable from said spline as said stem is moved to said outermost position, a displaceable gear mounted for displacement transversely of its axis, and engageable with said winding pinion gear, a winding train engaged with said displaceable gear, first spring means urging said displaceable gear toward said winding pinion gear and toward said winding train for meshing engagement, and second spring means urging said winding pinion gear toward engagement with said spline, damage being avoided when said internal teeth of said winding pinion gear and said teeth of said spline are brought together out of registry as said stem is moved toward the innermost position by displacement of said displaceable gear
  • An improved mechanism of claim I further comprising a date drive gear slidably mounted with respect to said spline and a date wheel engageable with said date drive gear, said date drive gear engaging said date wheel when said stem is in said intermediate position for adjustment of said date wheel by rotation of said stem in either direction, said winding pinion gear being disengaged from said displaceable gear when said stem is in said intermediate position thereby providing for adjustment of the date without actuating said winding train.
  • An improved mechanism of claim 1 further comprising a pinion gear mounted coaxially on said stem, and a time-setting train including a crown gear, said pinion gear engaging said crown gear when said stem is in said outermostposition, said winding pinion gear and said date drive gear being displaced from said spline when said stem is in said outermost position, thereby providing for setting the time without displacing the date wheel or actuating the winding train.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Gears, Cams (AREA)
  • Electromechanical Clocks (AREA)
  • Mechanical Operated Clutches (AREA)
US166753A 1970-07-30 1971-07-28 Calendar watch setting stem with displaceable spring biased gear Expired - Lifetime US3668864A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP45066348A JPS5225751B1 (enrdf_load_stackoverflow) 1970-07-30 1970-07-30

Publications (1)

Publication Number Publication Date
US3668864A true US3668864A (en) 1972-06-13

Family

ID=13313251

Family Applications (1)

Application Number Title Priority Date Filing Date
US166753A Expired - Lifetime US3668864A (en) 1970-07-30 1971-07-28 Calendar watch setting stem with displaceable spring biased gear

Country Status (6)

Country Link
US (1) US3668864A (enrdf_load_stackoverflow)
JP (1) JPS5225751B1 (enrdf_load_stackoverflow)
CH (2) CH1118371A4 (enrdf_load_stackoverflow)
DE (1) DE2136528C3 (enrdf_load_stackoverflow)
GB (1) GB1320607A (enrdf_load_stackoverflow)
MY (1) MY7600221A (enrdf_load_stackoverflow)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4228647A (en) * 1977-06-07 1980-10-21 Kabushiki Kaisha Daini Seikosha Click mechanism of a timepiece
FR2524300A1 (fr) * 1982-04-01 1983-10-07 Martinelli Claude Perfectionnements a un dispositif porte-outil pour travaux dentaires
FR2679667A1 (fr) * 1991-07-10 1993-01-29 Timex Corp Mecanisme de mise a l'heure d'un mouvement d'horlogerie.
US6896403B1 (en) * 2002-12-30 2005-05-24 Timex Group B.V. Mode selecting assembly for a timepiece
WO2012175595A1 (fr) * 2011-06-21 2012-12-27 Rolex S.A. Piece d'horlogerie comportant un mecanisme de remontage et au moins un mecanisme de correction d'au moins un organe indicateur
CN103744279A (zh) * 2013-12-25 2014-04-23 福州小神龙表业技术研发有限公司 一种钟表的调时装置
US9921548B2 (en) * 2014-03-06 2018-03-20 Seiko Epson Corporation Electronic timepiece and movement
US10585397B2 (en) * 2017-03-17 2020-03-10 Montres Jaquet Droz Sa Mechanism for winding a timepiece

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5899602U (ja) * 1981-12-28 1983-07-06 株式会社竹内製作所 巻尺
JP2665590B2 (ja) * 1987-06-19 1997-10-22 住友特殊金属株式会社 希土類―鉄―ボロン系磁気異方性焼結永久磁石原料用合金薄板並びに磁気異方性焼結永久磁石原料用合金粉末，及び磁気異方性焼結永久磁石

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH348365A (fr) * 1958-08-15 1960-08-15 Montres Perret Et Berthoud Sa Montre
CH372983A (de) * 1961-10-06 1963-01-31 Brac Ag Uhr mit Datumscheibe
US3377795A (en) * 1966-03-11 1968-04-16 Hamilton Watch Co Calendar setting mechanism for an electric watch
US3470687A (en) * 1966-12-15 1969-10-07 Suwa Seikosha Kk Date and day correcting device of a calendar timepiece

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH348365A (fr) * 1958-08-15 1960-08-15 Montres Perret Et Berthoud Sa Montre
CH372983A (de) * 1961-10-06 1963-01-31 Brac Ag Uhr mit Datumscheibe
US3377795A (en) * 1966-03-11 1968-04-16 Hamilton Watch Co Calendar setting mechanism for an electric watch
US3470687A (en) * 1966-12-15 1969-10-07 Suwa Seikosha Kk Date and day correcting device of a calendar timepiece

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4228647A (en) * 1977-06-07 1980-10-21 Kabushiki Kaisha Daini Seikosha Click mechanism of a timepiece
FR2524300A1 (fr) * 1982-04-01 1983-10-07 Martinelli Claude Perfectionnements a un dispositif porte-outil pour travaux dentaires
FR2679667A1 (fr) * 1991-07-10 1993-01-29 Timex Corp Mecanisme de mise a l'heure d'un mouvement d'horlogerie.
US6896403B1 (en) * 2002-12-30 2005-05-24 Timex Group B.V. Mode selecting assembly for a timepiece
WO2012175595A1 (fr) * 2011-06-21 2012-12-27 Rolex S.A. Piece d'horlogerie comportant un mecanisme de remontage et au moins un mecanisme de correction d'au moins un organe indicateur
CN103765331A (zh) * 2011-06-21 2014-04-30 劳力士有限公司 包括上条机构和至少一个用于修正至少一个指示器元件的机构的时钟
US9170563B2 (en) 2011-06-21 2015-10-27 Rolex S.A. Timepiece comprising a winding mechanism and at least one mechanism for correcting at least one indicator member
CN103765331B (zh) * 2011-06-21 2017-05-03 劳力士有限公司 包括上条机构和至少一个用于修正至少一个指示器元件的机构的时钟
CN103744279A (zh) * 2013-12-25 2014-04-23 福州小神龙表业技术研发有限公司 一种钟表的调时装置
CN103744279B (zh) * 2013-12-25 2017-01-18 福州小神龙表业技术研发有限公司 一种钟表的调时装置
US9921548B2 (en) * 2014-03-06 2018-03-20 Seiko Epson Corporation Electronic timepiece and movement
US10585397B2 (en) * 2017-03-17 2020-03-10 Montres Jaquet Droz Sa Mechanism for winding a timepiece

Also Published As

Publication number Publication date
JPS5225751B1 (enrdf_load_stackoverflow) 1977-07-09
MY7600221A (en) 1976-12-31
DE2136528A1 (de) 1972-02-03
GB1320607A (en) 1973-06-20
CH1118371A4 (enrdf_load_stackoverflow) 1975-03-27
DE2136528B2 (de) 1975-01-23
DE2136528C3 (de) 1975-10-30
CH566040A (enrdf_load_stackoverflow) 1975-08-29

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