US3722207A - Universal timepiece - Google Patents

Universal timepiece Download PDF

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Publication number
US3722207A
US3722207A US00144128A US3722207DA US3722207A US 3722207 A US3722207 A US 3722207A US 00144128 A US00144128 A US 00144128A US 3722207D A US3722207D A US 3722207DA US 3722207 A US3722207 A US 3722207A
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US
United States
Prior art keywords
pinion
wheel
disc
setting
meshing
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
US00144128A
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English (en)
Inventor
C Challandes
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.)
Centre Electronique Horloger SA
Original Assignee
Centre Electronique Horloger 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 Centre Electronique Horloger SA filed Critical Centre Electronique Horloger SA
Application granted granted Critical
Publication of US3722207A publication Critical patent/US3722207A/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
    • 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
    • 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
    • G04B19/22—Arrangements for indicating different local apparent times; Universal time pieces
    • G04B19/223—Arrangements for indicating different local apparent times; Universal time pieces with rotary disc, rotary bezel, or rotary dial

Definitions

  • a universal timepiece comprises a disc driven by means comprising meshing first and second planet wheels pivotally mounted on a rotatably carrier angularly fixed with the disc, the first planet wheel meshing with a pinion in an hours hand driving train, and the second planet wheel meshing with a solar pinion.
  • the solar pinion is normally angularly fixed, but a setting train for the disc meshes with the solar pinion to enable rotation thereof.
  • It is an object of the invention to provide a universal timepiece comprising conventional hours and minutes hands, a disc carrying indications to show the time in different time zones, and a separate setting train for the disc to enable setting thereof without interference with the drive of the hours and minutes hands.
  • a second setting train which enables the simultaneous setting of the hours hand, minutes hand and disc is also provided.
  • a universal timepiece comprises a minutes hand, an hours hand and a disc mounted for rotation about a fixed dial, indications being provided on the dial and disc for showing the time in different time zones.
  • the minutes hand, hours hand and disc are respectively driven in the ratio 24:2:1 revolutions per minute by driving means comprising meshing first and second planet wheels pivotally mounted on a rotatable carrier angularly fixed with said disc, said first planet wheel also meshing with a first pinion angularly dependant with the hours hand, said second planet wheel also meshing with a solar pinion.
  • Means are provided for normally holding said solar pinion angularly fixed, and means for setting said disc include a setting train meshing with said solar pinion to enable rotation thereof.
  • FIG. 1 is a partial cross-section through the embodiment
  • FIG. 2 is a partially cut-away plan view from below the timepiece of FIG. 1;
  • FIG. 3 is a cross-section along line 111-111 of FIG. 2;
  • FIG. 4 is a view corresponding to a part of FIG. 1 for a varied embodiment.
  • FIG. 5 is a partly cut-away plan view taken along V- V of FIG. 4.
  • FIG. 1 DESCRIPTION OF THE PREFERRED EMBODIMENTS
  • the mechanism shown in FIG. 1 is mounted between two plates 1 and 2 and drives an hours hand 4, a minutes hand 5, and a disc 6 past indications on a dial 3 covering the plate 2.
  • This mechanism comprises a pinion 7 driven by a known type of horological motor schematically represented by M and which, being well known to the person skilled in the art, will not be described in detail.
  • the motor could be an electro-mechanical oscillator motor, or a conventional spring driven motor with a balance wheel and escapement mechanism; in both cases a gear train (not shown) is provided so that pinion 7 is driven at a rate such that a wheel 8 meshing therewith is driven at an angular speed ofl revolution per hour.
  • Wheel 8 is friction fitted on a cannon-pinion 9 the shaft 10 of which is pivotally mounted between plates 1 and 2 and protrudes out of plate 2 and through the dial 3.
  • the minutes hand 5 is mounted on the end of shaft 10 protruding from the dial, so that it is driven at a rate of. one revolution per hour.
  • the cannon-pinion 9 meshes with a dial-train l 1 angularly solid with a pinion l2 meshing with an hour wheel 13 fixed onto a pinion 14 made in one piece with a pipe 15 rotatably mounted on the shaft 10 of cannon-pinion 9.
  • Pipe 15 also protrudes through the dial 3 and carries, at its outer end, the hours hand 4.
  • the gear ratio between the cannon-pinion 9, dial-train ll, dial-train pinion 12 and hour wheel 13 is 1:12, so that the hours hand 4 makes one complete revolution around the dial for 12 revolution of the minutes hand 5, as in conventional timepieces.
  • Pinion 14 meshes with a planet wheel 16 pivotally mounted on a mobile wheel 17 fixed on a second pipe 18 concentric to pipe 15 and mounted rotatably thereabout.
  • Wheel 17 also carries another planet wheel 19 meshing on the one hand with planet wheel 16 and on the other hand with a pinion 20 rotatably mounted about pipe 18. Since this differential gear system is provided with two planet wheels, 16 and 19, the disc 6, which is fitted onto pipe 18 adjacent to the dial 3, is rotated in the same direction as the hands 4 and 5.
  • the mounting of planet wheels 16 and 19 on wheel 17 is shown in detail in FIG. 3.
  • the planet wheels are pivotally mounted on shanks 16' and 19 fixed to a plate 17 attached to wheel 17 by two pillars 37.
  • the shank of pinion 20 passes through plate 2 and a spring 21 fitted in groove 22 of the shank of pinion 20 bears against the bottom of a recess 23 in the outer side of plate 2 so as to-prevent pinion 20 from freely turning about the pipe 18. Consequently, pinion 20 forms a solar pinion about which the planet wheel19, driven by planet wheel 16 meshing with pinion 14, is driven together with the wheel 17 and pipe 18 carrying disc 6.
  • the gear ratio of pinions l4, 16, 19 and 20 is chosen so that the angular speeds of the wheel 17 and the pinion 14 are in the ratio 1:2. Consequently, disc 6 makes one revolution'per 24 hours.
  • disc 6 is graduated at its periphery from one to 24 and the fixed dial 3 carries
  • the normal" time-setting mechanism comprises a wheel 24 meshing with the dial-train 11 and freely rotatably mounted on a stepped bush 25 tightly fitted on a shank 26 pivotally mounted between plates 1 and 2.
  • Wheel 24 meshes with a pinion 27 keyed on an axially and rotatably movable control shaft 28 which can be actuated manually from the exterior of the timepiece, in this example from outside the bottom of the case, not shown.
  • This control shaft 28 is mounted between the plates 1 and 2 and has two adjacent cir cumferential grooves 29 and 30.
  • a further pinion 33 is also keyed onto control shaft 28.
  • pinion 33 meshes with a wheel 34 coaxial to the wheel 24 but angularly fixed on the shank 26.
  • pinion 27 no longer meshes with the wheel 24.
  • Wheel 34 forms part of a gear train for setting disc 6 comprising a wheel 35 meshing with wheel 34 and with a wheel 36 fixed on the pinion 20.
  • the control shaft is placed in the position shown in full lines in FIG. 1, and the shaft is manually rotated in one direction or the other according to whether it is desired to move the hands 4 and 5 forwards or backwards.
  • the rotation of shaft 28 is transmitted to the wheel 24 by the pinion 27.
  • Wheel 24 drives the dial train 11 and the dial train pinion 12 of the motion work.
  • Wheel 8 is frictionally fitted onto the shaft of the cannon pinion 9 and consequently stays in mesh with the pinion 7 of the motor M. The frictional adjustment between the wheel 8 and the cannon pinion 9 thus enables the latter to be angularly freed from wheel 8 during setting.
  • the dial train pinion 12 also transmits rotation to the wheel 13 fixed to pinion 14 made in one piece with the hours hand pipe 15.
  • Pinion 14 transmits a rotation in the ratio I22 to the mobile planet-carrying wheel 17 fixed to pipe 18 carrying disc 6.
  • the pinion 20 is held angularly fixed by the spring 21 during this operation, as for normal running of the timepiece.
  • the control shaft 28 For setting only the disc 6, for example after having moved the hands 4 and 5 forwards or backwards by one hour when the user passes from one time zone to another, or after the time-piece has been stopped for a long period, the control shaft 28 is moved to the position shown in dotted and dashed lines, with the spring 31 engaging in groove 30.
  • wheel 34 By manually turning the shaft 28, wheel 34 is driven by pinion 33 and in turn drives wheel 36 fixed on pinion 20.
  • Pinion 20 is thus turned against the action of the pressure exerted by the spring 21 and, by turning, drives the planet wheel 19 which in turn drives the planet wheel 16.
  • I In this case, I
  • the normal rest position of the control shaft 28 is that shown in dotted-dashed lines. In fact, normal drive of the hands is accompanied by rotation of the wheels 11 and 24. Since the control shaft 28 is gripped by the spring 31, this spring exerts a braking action on the shaft 28 which would therefore cause stopping or slowing down of the hands 4 and 5 and disc 6 if the wheel 24 were left in mesh with the pinion 27 during normal running of the timepiece. Pinion 20 being angularly fixed during normal operation of the timepiece, the engagement of pinion 33 with wheel 34 causes no perturbation to the motion work and allows wheel 24 to turn freely. The provision of two axially separated coaxial pinions 27 and 33 is not absolutely necessary; however, this arrangement enables a reduction of the axial path for the control shaft 28.
  • a time-setting stem 38 has a single axial position and has a single pinion 39 fixed thereto.
  • Pinion 39 meshes with a toothed wheel 40 freely pivoted on a shaft 26 between wheels 24 and 34.
  • Wheel 40 has on its upper face a pawl 41 freely pivoted on a stud 42 integral with wheel 40.
  • Pawl 41 has two beaks 43 which engage with catches 44 carried by the wheel 24 when the wheel 40 turns in the counterclockwise direction (FIG. 5) but which do not engage with the catches 44 when wheel 40 turns in the clockwise direction.
  • the wheel 24 and the setting train are only driven for one direction of rotation of the stem 38.
  • the wheel 34 also carries a pawl 45 freely pivoted on a stud 46 integral with wheel 34.
  • the beaks of this pawl 45 are arranged so that the pawl does not engage with stud 47 carried on the lower face of the wheel 40 when this wheel is turned in the counterclockwise direction (FIG. 5), whilst they engage with studs 47 when wheel 40 is turned in the clockwise direction.
  • rotation of wheel 40 in the counterclockwise direction drives the wheel 24 and the setting train for the hands and disc
  • rotation of wheel 40 in the clockwise direction drives the wheel 34 and the setting train for the disc 6 only.
  • An universal timepiece comprising a fixed dial; a minutes hand, an hours hand and a disc mounted for rotation about the dial; indications on the dial and disc for showing the time in different time zones; means for driving the minutes hand, hours hand anddisc respectively in the ratio 24: 2: l revolutions per twenty four hours, said driving means comprising meshing first and second planet wheels pivotally mounted on a rotatable carrier angularly fixed with said disc, said first planet wheel also meshing with a first pinion angularly dependent with the hours hand, said second planet wheel also meshing with a solar pinion; means for normally holding said solar pinion angularly fixed; and means for setting said disc including a first setting train meshing with said solar pinion to enable rotation thereof.
  • a timepiece according to claim 1, comprising a second setting train including means for simultaneously setting the minutes hand, hours hand and disc.
  • a timepiece according to claim 2 comprising single control means for selectively actuating the first and second setting trains.
  • control means comprises a rotatable control shaft movable axially between a first position and a second position, third pinion means mounted on said control shaft, said third pinion means meshing with a first wheel of said first setting train in said first position and with a second wheel of said second setting train in said second position, the first and second wheels of said first and second setting trains being coaxially mounted together but angularly independent of one another and axially spaced apart from one another.
  • said third pinion means comprises two third pinions coaxially keyed on said control shaft, one third pinion meshing with said first wheel whilst the other third pinion isdisengaged from the second wheel in said first position, and the other third pinion meshing with the second wheel whilst said one third pinion is disengaged from the first wheel in said second position.
  • a timepiece which further comprises a control means comprising an axially fixed rotatable control shaft, a third pinion on said shaft,.said third pinion being disposed between a first wheel of the first setting train and a second wheel of the second setting train, and means for rotatably engaging said third pinion with said first wheel for one direction of rotation of said shaft and rotatably engaging said third pinion with said second wheel for the other direction of rotation of said shaft.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electromechanical Clocks (AREA)
  • Measurement Of Unknown Time Intervals (AREA)
US00144128A 1970-05-22 1971-05-17 Universal timepiece Expired - Lifetime US3722207A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH765670A CH524175A (fr) 1970-05-22 1970-05-22 Pièce d'horlogerie munie d'un dispositif indicateur de l'heure universelle

Publications (1)

Publication Number Publication Date
US3722207A true US3722207A (en) 1973-03-27

Family

ID=4328534

Family Applications (1)

Application Number Title Priority Date Filing Date
US00144128A Expired - Lifetime US3722207A (en) 1970-05-22 1971-05-17 Universal timepiece

Country Status (5)

Country Link
US (1) US3722207A (xx)
JP (1) JPS5149228B1 (xx)
CH (2) CH524175A (xx)
DE (1) DE2125017C3 (xx)
FR (1) FR2090222B1 (xx)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3837161A (en) * 1973-12-26 1974-09-24 Timex Corp Universal time watch
US4443112A (en) * 1982-09-29 1984-04-17 Timex Corporation Planetary gear for date mechanism in a wristwatch

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54110332U (xx) * 1978-01-19 1979-08-03
JPS5742788U (xx) * 1980-08-24 1982-03-09
JPS5931396U (ja) * 1982-08-20 1984-02-27 鈴木　重信 物干竿におけるハンガ−の間隔保持具
JPS63160795U (xx) * 1987-04-09 1988-10-20
CH672867GA3 (en) * 1987-11-25 1990-01-15 Analogue display watch with synchronised concentric complementary hand - has facility for resetting complementary indication through displayed angle without loss of synchronism at constant speed
CH674290GA3 (en) * 1988-06-17 1990-05-31 Watch face time zone areas display - displays place where particular time zone is operative, with time zone area actuated by wearer
EP2444861B1 (fr) * 2010-10-22 2013-05-01 Audemars Piguet (Renaud et Papi) SA Sélecteur de fonction

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2641898A (en) * 1950-06-22 1953-06-16 Tissot Horlogerie Universal timekeeper
US3318085A (en) * 1964-12-11 1967-05-09 Lee Shao-Tang Setting means for universal timepiece
US3358437A (en) * 1966-05-23 1967-12-19 Fred G Burg Push button time zone watch

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB191417264A (en) * 1914-07-21 1915-07-15 Nicole Nielsen & Company Ltd Improvements in or connected with Clocks and other Time Pieces.
US2450264A (en) * 1946-10-23 1948-09-28 Albert N Woodruff Clock
CH270306A (fr) * 1948-02-14 1950-08-31 Vuilleumier Marcel Dispositif de remise à l'heure d'un organe indicateur d'une pièce d'horlogerie, notamment de l'aiguille des secondes.
CH357335A (fr) * 1959-09-30 1961-09-30 Walther Otto Accouplement à roue libre bidirectionnel
US3503203A (en) * 1967-11-14 1970-03-31 Bulova Watch Co Inc Two-zone timepiece

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2641898A (en) * 1950-06-22 1953-06-16 Tissot Horlogerie Universal timekeeper
US3318085A (en) * 1964-12-11 1967-05-09 Lee Shao-Tang Setting means for universal timepiece
US3358437A (en) * 1966-05-23 1967-12-19 Fred G Burg Push button time zone watch

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3837161A (en) * 1973-12-26 1974-09-24 Timex Corp Universal time watch
US4443112A (en) * 1982-09-29 1984-04-17 Timex Corporation Planetary gear for date mechanism in a wristwatch

Also Published As

Publication number Publication date
CH765670A4 (xx) 1972-02-15
DE2125017C3 (de) 1973-10-18
DE2125017B2 (de) 1973-03-29
JPS5149228B1 (xx) 1976-12-25
CH524175A (fr) 1972-02-15
FR2090222B1 (xx) 1976-03-19
DE2125017A1 (de) 1971-12-02
FR2090222A1 (xx) 1972-01-14

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