EP0676679B1 - Display structure of world timepiece - Google Patents

Display structure of world timepiece Download PDF

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Publication number
EP0676679B1
EP0676679B1 EP94925631A EP94925631A EP0676679B1 EP 0676679 B1 EP0676679 B1 EP 0676679B1 EP 94925631 A EP94925631 A EP 94925631A EP 94925631 A EP94925631 A EP 94925631A EP 0676679 B1 EP0676679 B1 EP 0676679B1
Authority
EP
European Patent Office
Prior art keywords
timepiece
auxiliary
timepieces
time
main
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
EP94925631A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0676679A4 (enrdf_load_stackoverflow
EP0676679A1 (en
Inventor
Kiyose C/O Orient Watch Co. Ltd. Sekine
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.)
Orient Watch Co Ltd
Original Assignee
Orient Watch Co Ltd
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 Orient Watch Co Ltd filed Critical Orient Watch Co Ltd
Publication of EP0676679A1 publication Critical patent/EP0676679A1/en
Publication of EP0676679A4 publication Critical patent/EP0676679A4/xx
Application granted granted Critical
Publication of EP0676679B1 publication Critical patent/EP0676679B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G04—HOROLOGY
    • G04G—ELECTRONIC TIME-PIECES
    • G04G9/00—Visual time or date indication means
    • G04G9/0076—Visual time or date indication means in which the time in another time-zone or in another city can be displayed at will
    • 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
    • G04B19/23—Arrangements for indicating different local apparent times; Universal time pieces by means of additional hands or additional pairs of hands

Definitions

  • the present invention relates to an improvement in a timepiece capable of displaying the times of a plurality of parts of the world.
  • a timepiece having the above capability, or world timepiece may be implemented as a watch, as taught in Japanese Utility Model Laid -Open Publication No. 60-64286 by way of example.
  • the watch has at the center a timepiece having an hour hand and a minute hand which make one turn for 12 hours and 60 minutes, respectively.
  • This center timepiece is, therefore, identical with a conventional 12-hour display timepiece.
  • the center timepiece is surrounded by a place name ring and a 24-hour ring which are rotatable. Particular place names are marked on the place name ring in consideration of time differences.
  • Numerals 0 to 23 representative of hours are provided on the 24-hour ring at equally spaced positions.
  • the center timepiece indicates 9.05 which is the current time in Tokyo.
  • a crown mounted on the timepiece is operated to rotate the place name ring until a mark representative of Tokyo aligns with the 12.00 position of the center timepiece.
  • the 24-hour ring is turned until 9.00 coincides with the mark of Tokyo of the place name ring.
  • the user of the timepiece can read a desired place name and time thereof, looking at the place name ring and 24-hour ring.
  • An embodiment of the present invention provides a timepiece which allows the times of various parts of the world to be easily read thereon.
  • An embodiment of the present invention provides a timepiece which allows the times of some different places to be read on a real time basis without resorting to any special operation.
  • An embodiment of the present invention provides a timepiece which is easy to operate.
  • An embodiment of the present invention provides a timepiece in which the display of time changes every moment in an interesting way.
  • An embodiment of the present invention provides a main timepiece for displaying the time of given part of the world is provided with a place name ring and a plurality of auxiliary timepieces with the place name ring having a circumference representative of 24 hours and is provided with place names thereon in consideration of time differences.
  • the auxiliary timepieces each display a time having a time difference corresponding to a position on the main timepiece.
  • a main timepiece 10 has an hour hand 12 making one turn for 12 hours, a minute hand 14 making one turn for 60 minutes, a second hand 16 making one turn for 60 seconds, and a dial 18 surrounding the hands 12, 14 and 16 and graduated at equal intervals. In the figure, part of the hands 12, 14 and 16 is not shown.
  • the main timepiece 10 operates in the same manner as a conventional 12-hour display timepiece.
  • auxiliary timepieces 20, 22, 24, 26, 28 and 30 are positioned radially inwardly of the main timepiece 10. Specifically, the timepieces 20 30 are arranged on a circle corresponding to 24 hours.
  • the timepieces 20 ⁇ 30 each has an hour hand 32 and displays time on a 24-hour basis.
  • the hour hand 32 of the timepiece 20 indicates a time identical with the time indicated by the hour hand 12 of the main timepiece 10.
  • Nearby ones of the auxiliary timepieces 20 30 display times having a difference corresponding to the distance between the timepieces on the circle, which corresponds to 24 hours as mentioned above.
  • the times indicated by the timepieces 20 ⁇ 30 are sequentially incremented by 4 hours in the clockwise direction (stated another way, they are sequentially decremented in the counterclockwise direction) .
  • the timepiece 22 indicates a time 4 hours ahead of (or 20 hours past of) the time of the timepiece 20.
  • the timepiece 24 indicates a time 4 hours ahead of (or 20 hours past of) the time of the timepiece 22.
  • Such a relation also holds between the other auxiliary timepieces.
  • a place name ring (or place name bezel) 34 is provided on the outer circumference of the main timepiece 10.
  • the ring 34 has a circumference indicative of 24 hours and shows the names of major cities of the world thereon.
  • the names of the cities, or place names, are positioned in consideration of time differences. Tokyo and Rio de Janeiro, for example, have a time difference of 12 hours and, therefore, positioned at radially opposite sides on the ring 34. Hong Kong, which is 1 hour later than Tokyo, is marked at a position 1 hour later than Tokyo.
  • the other place names are indicated on the ring 34 in the same manner.
  • the place name ring 13 is turned to bring the place name matching the time of the main timepiece 10 to the position where the auxiliary timepiece 20, identical in time with the timepiece 10, is located.
  • the main timepiece 10 and auxiliary time piece 20 indicate Tokyo time, so that " TOKYO" on the ring 34 is coincident with the 12.00 position of the timepiece 10.
  • the other auxiliary timepieces 22 ⁇ 30 each displays the time of one place ahead of the time of the place indicated by the main timepiece 10 by 4 hours or a multiple thereof.
  • the timepieces 24, 26, 28 and 30 respectively display the times of Denver, Rio de Janeiro, Paris or Rome, and Karachi.
  • the time indication by the auxiliary timepieces 22 ⁇ 30 is interlocked with the time indication by the main timepiece 10, it is not necessary for the user to perform a special operation every time the time should be read.
  • FIGS. 2 ⁇ 4 show gears as seen from the front or dis play side of the timepiece.
  • FIG. 3 is a fragmentary section of a portio n extending from the center of the timepiece to a crown.
  • FIG. 4 is an e nlarged view of a gear train for the auxiliary timepiece and shown in FIG. .3
  • a barrel gear body 40 is located at the center of the timepiece and rotates the hour hand 12 of the main timepiece 10.
  • a barrel gear 42 is included in the body 40 and held in mesh with three second intermediate wheels 44. As shown in FIG. 2, the intermediate wheels 44 are positioned symmetrically, and each is held in mesh with two 24-hour wheels 45. The 24-hour wheels 45 are also positioned symmetricall,y as shown in FIG. 2.
  • each 24-hour gear 45 makes one rotation.
  • the hour hand 12 of the main timepiece 10 is mounted on the barrel wheel 42 and makes one turn for 12 hours, as stated earlier.
  • each 24-hour wheel 45 makes one rotation for two rotations of the barrel gear 42, i.e., for 24 hours.
  • a back plate 50 is affixed to the time display side of a base plate 46 by screws 48.
  • the screws 48 are so shaped and dimensioned as not to protrude from the back plate 50 at the time display side.
  • Three round holes 52 are formed in the back plate 50 at symmetrical positions which are spaced a predetermined distance from the center of the timepiece.
  • six round holes 54 are formed in the back plate 50 at symmetrical positions radially outwardly of the holes 52 and spaced a predetermined distance from the center of the timepiece.
  • Each intermediate gear 44 has a shaft 44A rotatably received in the respective hole 52.
  • each 24-hour wheel 45 has a shaft 45A rotatably received in the respective hole 54.
  • a dial plate 56 is provided on the time display side of the intermediate wheels 44 and 24-hour wheels 45. Provided on the dial plate 56 are the previously mentioned 12-hour dial 18 of the main time piece 10 and the 24-hour dials and numerals of the auxiliary timepieces 20 ⁇ 30. The dial plate 56 is supported by a support ring 58.
  • a pin 458 is studded on the center of each 24-hour wheel 45 in such a manner as to protrude from the dial plate 56 at the time display side.
  • the hour hand 32 of each of the auxiliary wheels 20 ⁇ 30 is mounted on the tip of the respective pin 45B. Because the 24-hour wheels 45 rotate in the same direction as the barrel gear 42, as stated previously, the hour hand 12 of the main timepiece 10 and the hour hands 32 of the auxiliary timepieces 20 ⁇ 30 turn in the same direction as each other.
  • a machine body 62 including a battery and a motor, is interposed between the base plate 46 and a rear cover 60 in order to drive the barrel wheel 42 as well as the other components.
  • a crown 64 is located at the right-hand side, as viewed in FIG. 3.
  • the place name ring 34 can be turned relative to a case 66 by hand.
  • the dial plate 56 and a crystal 68 define a space therebetween.
  • the hour hands 32 of the auxiliary timepieces 20 ⁇ 30 and the hour hand 12, minute hand 14 and second hand 16 of the main timepiece 10 are turnable in the space between the dial plate 56 and the crystal 68 at respective levels which sequentially increase in this order.
  • the auxiliary timepieces 20 ⁇ 30 will be described more specifically with reference also made to FIG. 1.
  • the six timepieces 20 ⁇ 30 are respectively aligned with the 12.00, 2.00, 4.00, 6.00, 8.00 and 10.00 positions of the timepiece 10, as stated earlier. All the timepieces 20 ⁇ 30 display times on a 24-hour basis. Nearby ones of the hour hands 32 have a time difference of 4 hours.
  • the hour hand 32 of the timepiece 22 indicates a time 4 hours ahead of the hour hand 32 of the timepiece 20.
  • the hour hand 32 of the timepiece 24 indicates a time 4 hours ahead of the hour hand 32 of the timepiece 22.
  • the place name ring 34 has a circumference representative of 24 hours.
  • the hour hands 32 of the auxiliary timepieces 20 ⁇ 30 are conditioned such that, among the 24 hours on the ring 34, six different times sequentially incremented (or decremented) by each 4 hours are indicated by the timepiece 20 ⁇ 30.
  • the main timepiece 10 operates in the same manner as a conventional timepiece. Specifically, a driving force from the machine body 62 is transmitted to the hour hand 12, minute hand 14 and second hand 16, causing the timepiece 10 to display a time.
  • the auxiliary timepieces 20 ⁇ 30 are interlocked with the main timepiece 10. Hence, only if the timepiece 10 is set, the timepieces 20 ⁇ 30 are automatically set to the times sequentially incremented by each 4 hours due to the operation of the barrel gear 42, second intermediate wheels 44, and 24-hour wheels 42.
  • auxiliary timepieces 20 ⁇ 30 indicate times different from each other by 4 hours, and the timepiece 20 is coincident with the main timepiece 10 as to time. The timepieces 20 ⁇ 30, therefore, display times ahead of the time of the main timepiece 10 by each 4 hours.
  • the user of the timepiece turns the place name ring 34 until the place name associated with the time of the main timepiece 10 has been aligned with the auxiliary timepiece 20.
  • the mark " TOKYO" on the ring 34 is aligned with the timepiece 20.
  • the user can see the times of the places whose times are 4 hours, 8 hours, 12 hours, 16 hours and 20 hours ahead of Tokyo time (or 20 hours, 16 hours, 12 hours, 8 hours and 4 hours past of Tokyo time) on a real time basis.
  • the user should only read the time of the timepiece 28 with which the marks " PARIS" and " ROME" are aligned.
  • FIG. 5 shows how the hour hands of the main timepiece 10 and auxiliary timepieces 20 ⁇ 30 sequentially move.
  • the hour hands each sequentially moves as shown in (A) , (B), (C) , and (D) in this order.
  • the six hour hands move in an extremely interesting way as the time elapses.
  • the present invention is not limited to the embodiment described above, but it also includes the following embodiments.
  • the auxiliary timepieces indicative of the times of various places are arranged on a circle representative of 24 hours.
  • the times indicated by nearby auxiliary timepieces have a difference corresponding to the distance between the auxiliary timepieces on the circle.
  • the names of places are provided, in consideration of the time differences, on the place name ring whose circumference corresponds to 24 hours. This allows the times of various places to be easily read.
  • the auxiliary timepieces are automatically set. Once the place name ring is set, the times of various places can be read on a real time basis without resorting to any additional operation. The operation is, therefore, extremely easy.
  • the hour hands of the auxiliary timepieces move every moment, implementing interesting time display.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electromechanical Clocks (AREA)
  • Electric Clocks (AREA)
EP94925631A 1993-09-14 1994-09-06 Display structure of world timepiece Expired - Lifetime EP0676679B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP252435/93 1993-09-14
JP5252435A JPH0784071A (ja) 1993-09-14 1993-09-14 世界時計の表示構造
PCT/JP1994/001466 WO1995008140A1 (fr) 1993-09-14 1994-09-06 Structure d'affichage d'une montre indiquant l'heure pour le monde entier

Publications (3)

Publication Number Publication Date
EP0676679A1 EP0676679A1 (en) 1995-10-11
EP0676679A4 EP0676679A4 (enrdf_load_stackoverflow) 1995-11-15
EP0676679B1 true EP0676679B1 (en) 1998-04-29

Family

ID=17237337

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94925631A Expired - Lifetime EP0676679B1 (en) 1993-09-14 1994-09-06 Display structure of world timepiece

Country Status (6)

Country Link
EP (1) EP0676679B1 (enrdf_load_stackoverflow)
JP (1) JPH0784071A (enrdf_load_stackoverflow)
KR (1) KR950704728A (enrdf_load_stackoverflow)
CN (1) CN1114513A (enrdf_load_stackoverflow)
TW (1) TW261674B (enrdf_load_stackoverflow)
WO (1) WO1995008140A1 (enrdf_load_stackoverflow)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0964320B1 (en) * 1997-10-08 2008-11-26 Seiko Epson Corporation Timepiece
CN101040227B (zh) * 2004-08-30 2011-03-16 Bnb概念股份有限公司 在钟表表盘上显示活动图案、图形或标记的机构
JP2008519966A (ja) * 2004-11-12 2008-06-12 ダルトン プロパティーズ インコーポレーテッド メインディスプレイと少なくとも一つの第二ディスプレイを作動する機構とを有する時計、特に腕時計
EP2680091B1 (fr) * 2012-06-26 2015-04-22 Blancpain SA. Montre universelle
DE102014011430A1 (de) * 2014-08-01 2016-02-04 Matthias Fechner Analoge Uhr
USD786705S1 (en) * 2014-08-01 2017-05-16 Nixon Inc. Watch
RU2568337C1 (ru) * 2014-08-28 2015-11-20 Общество с ограниченной ответственностью "Константин Чайкин" Часы с индикацией времени в часовых зонах россии (варианты) и способ осуществления одновременной индикации времени во всех часовых зонах россии

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH346487A (fr) * 1958-05-10 1960-05-15 Vaurillon Emilie Antoine Montre à lunette tournante
CH470702A (fr) * 1966-07-20 1968-12-13 Enicar S A Montre à heure universelle
US4332020A (en) * 1980-07-30 1982-05-25 Leopold Arthur B Adhesive time zone adjuster
DE3316185A1 (de) * 1983-05-04 1984-11-08 Telefonbau Und Normalzeit Gmbh, 6000 Frankfurt Weltzeituhr
JPS6070390A (ja) * 1983-09-27 1985-04-22 Citizen Watch Co Ltd 副針付時計
JPH01129684U (enrdf_load_stackoverflow) * 1988-02-17 1989-09-04
JPH089655Y2 (ja) * 1988-03-24 1996-03-21 カシオ計算機株式会社 世界時計

Also Published As

Publication number Publication date
JPH0784071A (ja) 1995-03-31
EP0676679A4 (enrdf_load_stackoverflow) 1995-11-15
WO1995008140A1 (fr) 1995-03-23
TW261674B (enrdf_load_stackoverflow) 1995-11-01
HK1006214A1 (en) 1999-02-12
EP0676679A1 (en) 1995-10-11
CN1114513A (zh) 1996-01-03
KR950704728A (ko) 1995-11-20

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