US3747329A - Sweep second watch movement - Google Patents

Sweep second watch movement Download PDF

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Publication number
US3747329A
US3747329A US00255464A US3747329DA US3747329A US 3747329 A US3747329 A US 3747329A US 00255464 A US00255464 A US 00255464A US 3747329D A US3747329D A US 3747329DA US 3747329 A US3747329 A US 3747329A
Authority
US
United States
Prior art keywords
wheel
movement
minute
gear
normally stationary
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
US00255464A
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English (en)
Inventor
J Golay
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.)
BERNARD GOLAY SA
Original Assignee
Individual
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 Individual filed Critical Individual
Application granted granted Critical
Publication of US3747329A publication Critical patent/US3747329A/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • G04B19/02—Back-gearing arrangements between gear train and hands
    • 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
    • G04B27/001—Internal gear therefor, e.g. for setting the second hand or for setting several clockworks

Definitions

  • a characteristic of the invention is that a wheel called the fourth wheel driven by an escape pinion carries two coaxial planet wheels rotationally interdependent, one of these planet wheels engaging with a normally stationary gear and the other with a cannon pinion, the planet wheels thus formed and the works with which they cooperate being so proportioned that at each full 360 turning of the planet wheels, the cannon pinion moves through an angle of 6' in the same direction of rotation.
  • Wheel 1 is the fourth wheel driven by the escape pinion 2.
  • Planet wheel 3 of this pair engages with a wheel 5 which normally stands still, while the second planet .wheel 4 engages with the cannon pinion 6.
  • cannon pinion 6 is axially determined by a bearing 10 of a tube 11 mounted pivotably in a tube 12 which is drift-driven to the center of the movement; a r
  • Gear 5 is held steady by,friction applied by bridge 13 by means of a flexible bolt or ring 14.
  • the planet wheels 3 and.4 run interdependently with the fourth wheel 1 through a 360 arc each minute.
  • the cannon pinion 6 Due to the reduction gear provision between the said fourth wheel, the planet wheels and the cannon pinion 6, at each revolution of the planet wheels the cannon pinion 6 moves 6 in the same direction of rotation.
  • the cannon pinion 6 governing the minute hand will move the same through one-sixtieth of a turn, namely ,1 minute.
  • the wheel 5 with bridge 13 which is normally still, carries a butt 15 which allows it to work in conjunction with hour-setting means.
  • the hour-setting means are interdependently united with the base 16 of the gear case and include a crown wheel tube 17, the hour-setting crown wheel 18 and a flexible rim 19 working in conjunction with two axially spaced circular grooves therein so as to fix two posi tions of axial rest and hour-set. These various components are coaxial with the fourth wheel 1.
  • Means for leakproofing the said crown wheel are provided by element 20, therebeing provided a rim 21 having a square inside aperture and drift-driven into the tube of the crown wheel.
  • Said aperture works in conjunction with a bushing 22 allowing the crown wheel 18 to be coupled in rotation with the butt 15, since the said bushing exhibits an equivalent square aperture. Said bushing moves for that purpose, axially with the crown wheel, with however the interposing of a resilient component 23.
  • the crown wheel 18 In the idle position shown in the drawing, the crown wheel 18 is inoperative. Exertion of axial traction of the crown wheel compresses the flexible unit 23, the rim 19 moving into position in a lower notch of the crown wheel 18.
  • either the butt of bushing 22 occupies an angular position such as to couple with the butt 15, or a position antagonistic to coupling of these two components which are of mating male and female section. In that case the connection will be effected after a setting of the crown wheel into rotation.
  • This arrangement has the advantage of allowing a setting of the hour hand through the base by means of a crown wheel occupying the center of the movement, which in particular facilitates the mounting of a watertight case base. This also results in a saving of space as compared with all known types of mechanisms.
  • a watch movement comprising a normally stationary gear, a driven wheel, two coaxial and rotationally interdependent planet gears carried by said driven wheel and rotating about the periphery of said normally stationary gear, minute and hour hand means, a cannon pinion for driving said minute and hour hand means being connected to said planet gears, said planet gears being so arranged that for each 360 revolution thereof said cannon pinion rotates 6 in the same direction of rotation, a crown wheel, and means selectively coupling said crown wheel with said normally stationary gear to rotate the latter and operate the cannon pinion through said planet gears so as to adjust the relative setting of said minute and hour hand means.
  • a movement as claimed in claim 1 comprising means frictionally engaging the first said gear to maintain the same normally stationary.
  • a movement as claimed in claim 1 wherein said selective coupling means include mating male and female parts.
  • said crown wheel includes a tubular extension provided with spaced annular notches, comprising a flexible member adapted for selectively engaging in one of said notches.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electromechanical Clocks (AREA)
US00255464A 1971-05-26 1972-05-22 Sweep second watch movement Expired - Lifetime US3747329A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH765671A CH535985A (fr) 1971-05-26 1971-05-26 Mouvement d'horlogerie avec seconde au centre

Publications (1)

Publication Number Publication Date
US3747329A true US3747329A (en) 1973-07-24

Family

ID=4328535

Family Applications (1)

Application Number Title Priority Date Filing Date
US00255464A Expired - Lifetime US3747329A (en) 1971-05-26 1972-05-22 Sweep second watch movement

Country Status (7)

Country Link
US (1) US3747329A (it)
CH (2) CH535985A (it)
DE (1) DE2222347C3 (it)
FR (1) FR2138698B1 (it)
GB (1) GB1346545A (it)
IT (1) IT955778B (it)
SU (1) SU487491A3 (it)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4182114A (en) * 1976-07-12 1980-01-08 Societe Suisse Pour L'industrie Horlogere Management Services S.A. Time-piece with electric motor driven display and planetary motion work
US4259735A (en) * 1978-09-04 1981-03-31 Eta A.G. Ebauches-Fabrik Timepiece movement with differential gear mechanism
CN102955419A (zh) * 2011-08-17 2013-03-06 Eta瑞士钟表制造股份有限公司 钟表轮副间隙的预调节
EP4174583A1 (fr) * 2021-10-27 2023-05-03 Bulgari Horlogerie S.A. Dispositif de commande pour une pièce d'horlogerie

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3029592A (en) * 1958-07-17 1962-04-17 Montres Perret Et Berthoud Sa Motion-work for time-pieces
US3499280A (en) * 1966-05-13 1970-03-10 Erard Raoul Henri Winding and setting pinions mounted in case independent of movement

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3029592A (en) * 1958-07-17 1962-04-17 Montres Perret Et Berthoud Sa Motion-work for time-pieces
US3499280A (en) * 1966-05-13 1970-03-10 Erard Raoul Henri Winding and setting pinions mounted in case independent of movement

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4182114A (en) * 1976-07-12 1980-01-08 Societe Suisse Pour L'industrie Horlogere Management Services S.A. Time-piece with electric motor driven display and planetary motion work
US4259735A (en) * 1978-09-04 1981-03-31 Eta A.G. Ebauches-Fabrik Timepiece movement with differential gear mechanism
CN102955419A (zh) * 2011-08-17 2013-03-06 Eta瑞士钟表制造股份有限公司 钟表轮副间隙的预调节
CN102955419B (zh) * 2011-08-17 2015-04-15 Eta瑞士钟表制造股份有限公司 钟表轮副间隙的预调节
EP4174583A1 (fr) * 2021-10-27 2023-05-03 Bulgari Horlogerie S.A. Dispositif de commande pour une pièce d'horlogerie

Also Published As

Publication number Publication date
CH535985A (fr) 1972-12-29
IT955778B (it) 1973-09-29
DE2222347A1 (de) 1972-12-07
GB1346545A (en) 1974-02-13
DE2222347C3 (de) 1974-06-27
DE2222347B2 (de) 1973-12-06
CH765671A4 (it) 1972-12-29
FR2138698A1 (it) 1973-01-05
SU487491A3 (ru) 1975-10-05
FR2138698B1 (it) 1976-06-11

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