EP0255712B1 - Gangwerke für elektronische Uhr mit Anzeige durch Zeigern - Google Patents

Gangwerke für elektronische Uhr mit Anzeige durch Zeigern Download PDF

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Publication number
EP0255712B1
EP0255712B1 EP87111177A EP87111177A EP0255712B1 EP 0255712 B1 EP0255712 B1 EP 0255712B1 EP 87111177 A EP87111177 A EP 87111177A EP 87111177 A EP87111177 A EP 87111177A EP 0255712 B1 EP0255712 B1 EP 0255712B1
Authority
EP
European Patent Office
Prior art keywords
wheel
gear
pinion
center
center gear
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
Application number
EP87111177A
Other languages
English (en)
French (fr)
Other versions
EP0255712A1 (de
Inventor
Willy Cleusix
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.)
ETA SA Manufacture Horlogere Suisse
Original Assignee
Eta SA Fabriques dEbauches
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 Eta SA Fabriques dEbauches filed Critical Eta SA Fabriques dEbauches
Publication of EP0255712A1 publication Critical patent/EP0255712A1/de
Application granted granted Critical
Publication of EP0255712B1 publication Critical patent/EP0255712B1/de
Expired legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G04—HOROLOGY
    • G04C—ELECTROMECHANICAL CLOCKS OR WATCHES
    • G04C3/00—Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means
    • G04C3/008—Mounting, assembling of components
    • 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
    • G04B33/00—Calibers
    • G04B33/06—Calibers of extremely flat shape

Definitions

  • the present invention relates to electronic watch movements with needle display and more particularly to movements which comprise only an hour hand and a minute hand and a clockwork mobile.
  • the object of the present invention is to remedy these defects by a constructive arrangement which maintains the possibility of using a stack extending as close as possible to the center of the movement, the thickness of this stack possibly being almost equal to the height. movement.
  • FIGS. 1 and 2 which illustrate the first embodiment, a watch movement is seen, the frame of which comprises a plate 1 and a gear train 2. Between these two frame elements is mounted a motor (not shown) whose rotot has a pinion which meshes with a first intermediate mobile 3, more precisely with the wheel 4 of this first intermediate mobile.
  • the pinion 5 of this first intermediate mobile is engaged with the wheel 6 of a second intermediate mobile 7 whose pinion 8 is constituted by a toothed disc in the form of a plate driven out on the shaft 9 of this mobile.
  • This shaft 9 has two pivots 10 each engaged in a stone 11. One of these stones is driven into a hole in the plate located in the center of a drop 12 which projects towards the inside of the movement.
  • the plate 1 also has a central recess 1 a, the bottom 13 of which is punctured to allow the toothed disc 8 to mesh with a moving center 14 which will now be described.
  • This center mobile comprises a shaft 15 coming in one piece with a pinion 16 and a pivot 17.
  • the pivot 17 is supported by a bearing 18 formed by a stone driven into a hole in the gear train bridge 2.
  • the mobile 14 has d on the other hand a wheel 19 which comprises a board 19a provided with a toothing, a drop 19b, a flange 20 adjacent to the board 19a and between these two elements a circular groove coaxial with the mobile and designated by 21.
  • the toothing of the wheel 19 has the same number of teeth as the toothed disc 8 and it can be seen that these two elements are mutually engaged when the center mobile is in place.
  • the collar 20 has an outside diameter which is slightly greater than that of the pinion 16. This collar is engaged in a hole 22 formed in the bottom 13 of the central recess 1a of the plate 1. Consequently, this hole 22 or central opening of the plate 1 is larger than the center pinion 16.
  • the needle display device comprises a 24 hour cannon wheel which is engaged on the shaft 15 of the mobile 14 above the wheel 19 and bears against the drop 19b.
  • the barrel of this wheel 24 will carry an hour hand (not shown) while the end of the shaft 15 of the mobile 14 will carry a minute hand (not shown).
  • the battery 25 which constitutes the energy source of the movement is put in place from the rear of the movement in a notch or a hole in the gear point 2. It comes to rest against a beveled surface 26 of the bottom 13 of the central recess 1a of the plate 1. Between the upper face of the stack 25 and the part of the plate 1 which extends above the stack there is sufficient space to accommodate a connection tab (not shown). The wheel 19 also extends in this space, while the plank of the hour wheel 24 extends at the level of the upper part of the plate 1. Radially, the stack 25 extends to a distance from the center movement which is slightly greater than the radius of the pinion 16.
  • the wheels 19 and 24 are also visible in FIG. 2.
  • the pinion 16 is engaged with the wheel 27 of a timer mobile 18, the pinion 29 of which is driven in a flange 30 of diameter slightly greater than that of the pinion 29.
  • a hole 31 in the plate 1 ensures pivoting.
  • the timer gear 29 is engaged with the barrel wheel 24, while the timer wheel 27, which is engaged with the center gear 16, can also be manually driven by moving the sliding gear 32 on the square of the control rod 33. This is engaged radially in the movement.
  • a lever 34 and a pull tab usually move the sliding pinion 32 when the rod 33 is pulled outwards in order to bring it into the time setting position. This movement construction therefore has no intermediate reference for setting the time.
  • the second embodiment differs from the first essentially by the fact that the center mobile 14 is pivotally mounted on a tenon 35, driven into the gear train 2. More precisely, the tenon 35 comprises a plate 36 forcibly engaged in a hole 37 of the deck 2, as well as a pivot 38, engaged in a hole 39 of the shaft 15, to ensure the pivoting of the latter.
  • the pivot 38 and the shaft 15 each have an annular boss, respectively bearing the references 40 and 41 and defining an axial notch, to ensure the axial positioning of the center mobile.
  • the center wheel 19 no longer has a collar or groove, the guide and the positioning of the minutes mobile being ensured by the lug only 35.
  • the plate 1 is devoid of recess in its center, but has a simple central opening 1b through which the assembly of the center mobile 14 and the hour and minute wheels 19 and 24 can be put in place.
  • the minute hand is carried by a shaft driven by a large diameter wheel, that is to say the center wheel 19, which considerably reduces the clearance gear.
  • the space available in height in the movement for receiving the stack exceeds 60% and can reach 90% of the thickness of the movement, even if this stack extends to the immediate vicinity of the center of the movement.
  • this solution offers an advantageous additional advantage, since it is possible to set up the center mobile and the barrel wheel once the movement is also completely finished.
  • the mobile 14 is simply engaged on the pivot 38. This makes it possible to store movements without the center mobile and the barrel wheel, and to choose, at the time of delivery, mobile and wheel in depending on the height of the switch. It might even be possible to mount the minute and hour hands respectively on the center mobile and the barrel wheel, with the interposition of the dial, before placing the module thus produced on the movement of the watch.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electromechanical Clocks (AREA)

Claims (9)

1. Elektronisches Uhwerk mit einer Platine (1), einer Batterie (25), einer Zeigeranzeigeanordnung, einem Motor und einem Räderwerk, das den Motor mit den Zeigern verbindet und das ein Zwischenrad (7), ein Zentrumsrad (14) mit einem Zahnrad (19) und einem Trieb (16), ein Minutenrad (28) und ein Kanonen-Stundenrad (24), das auf der Welle (15) des Zentrumsrads (14) drehgelagert ist, umfaßt, wobei das Zentrums-Zahnrad (19) mit einer Verzahnung (8) des Zwischenraums (7) im Eingriff ist und der Batterie (25) überlagt ist, dadurch gekennzeichnet, daß das Kanonenrad (24) direkt oberhalb des Zentrums-Zahnrads (19) drehgeiagert ist und daß die Platine (1) eine zentrale Offnung (22; 1b) aufweist, die größer ist als das Zentrums-Trieb (16).
2. Uhrwerk nach Anspruch 1, dadurch gekennzeichnet, daß das Zahnrad (19) des Zentrumsrads (14) und das Stunden-Zahnrad (24) sich in eine Eintiefung (1a) der Platine (1) auf ihrer Außenseite erstrecken.
3. Uhrwerk nach Anspruch 2, dadurch gekennzeichnet, daß das Zentrumsrad (14) zwischen seinem Zahnrad (19) und seinem Trieb (16) einen Kragen (20) aufweist, dessen Durchmesser größer ist als der des Triebs (16) und der das Zentrumsrad (14) drehbeweglich in der zentralen Öffnung (22) führt, die in den Boden (13) der Eintiefung (1a) der Platine (1) eingearbeitet ist.
4. Uhrwerk nach Anspruch 3, dadurch gekennzeichnet, daß das Zentrumsrad (14) ferner einen Zapfen (17) aufweist, der in ein mit einer Räderwerksbrücke (2) verbundenes Lager (18) greift.
5. Uhrwerk nach Anspruch 1, dadurch gekennzeichnet, daß das Zahnrad (19) des Zentrumsrads (14) und das Trieb (8) des Zwischenrads (7) die gleiche Zahnzahl aufweisen.
6. Uhrwerk nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, daß das Zentrumsrad (14) axial positioniert ist durch einen Riegel (23), der in eine mit dem Zentrumsrad (14) koaxiale Umfangsnut (21) greift, angeordnet zwischen seinem Zahnrad (19) und seinem Trieb (16)
7. Uhrwerk nach Anspruch 1, dadurch gekennzeichnet, daß es eine Rädewerksbrücke (2) mit einem Dübel (35) umfaßt, der sich in Richtung der Platine (1) erstreckt und in ein axiales Loch (39) greift, das das Zentrumsrad aufweist, um dessen Drehung sicherzustellen.
8. Uhrwerk nach Anspruch 7, dadurch gekennzeichnet, daß der Dübel (35) und die Wandung des Lochs (39) jeder einen Ringvorsprung (40, 41) aufweisen zur Bildung eines Hinterschnitts zwecks Sicherung einer Axialposition des Zentrumsrads (14) auf dem Dübel (35).
9. Uhrenrad umfassend eine Welle (15) mit einem Lagerzapfen (17) an einem seiner Enden, einem Trieb (16) und einem Zahnrad (19), wobei das Trieb (16) und die Welle (15) einstückig ausgebildet sind und das Zahnrad als separates Teil auf der Welle sitzt, dadurch gekennzeichnet, daß das Zahnrad (19) einstückig mit einem Lagerkragen (20) ausgebildet ist, dessen Durchmesser größer ist als der des Triebs (16), und daß dieser Kragen (20) zwischen dem Zahnrad (19) und dem Trieb (16) angeordnet ist zum Erleichtern des Einsetzens des Zentrumsrads (14).
EP87111177A 1986-08-07 1987-08-03 Gangwerke für elektronische Uhr mit Anzeige durch Zeigern Expired EP0255712B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH317686 1986-08-07
CH3176/86 1986-08-07

Publications (2)

Publication Number Publication Date
EP0255712A1 EP0255712A1 (de) 1988-02-10
EP0255712B1 true EP0255712B1 (de) 1989-11-29

Family

ID=4250264

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87111177A Expired EP0255712B1 (de) 1986-08-07 1987-08-03 Gangwerke für elektronische Uhr mit Anzeige durch Zeigern

Country Status (6)

Country Link
US (1) US4893292A (de)
EP (1) EP0255712B1 (de)
JP (1) JP2551960B2 (de)
DE (1) DE3761063D1 (de)
HK (1) HK2195A (de)
WO (1) WO1988001071A1 (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6640664B2 (en) * 2001-08-06 2003-11-04 Seitz Corporation Power assembly and method of making same

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4087957A (en) * 1975-12-25 1978-05-09 Citizen Watch Company Limited Movement construction for small size analog quartz timepiece
FR2436505A1 (fr) * 1978-09-12 1980-04-11 Radiotechnique Compelec Dispositif optoelectronique a emetteur et recepteur couples
JPS5939712B2 (ja) * 1978-11-17 1984-09-26 セイコーエプソン株式会社 時計の輪列機構
US4249251A (en) * 1979-10-29 1981-02-03 Timex Corporation Gear train for timepiece with a stepping motor
US4496246A (en) * 1980-10-21 1985-01-29 Kabushiki Kaisha Suwa Seikosha Timepiece construction
JPS57161578A (en) * 1981-03-30 1982-10-05 Seiko Epson Corp Wheel train structure of battery timepiece
CH647636GA3 (de) * 1981-12-16 1985-02-15
JPS5918385U (ja) * 1982-07-27 1984-02-03 日本航空電子工業株式会社 コネクタの電磁シ−ルド構造

Also Published As

Publication number Publication date
US4893292A (en) 1990-01-09
JPH01501246A (ja) 1989-04-27
DE3761063D1 (de) 1990-01-04
HK2195A (en) 1995-01-13
WO1988001071A1 (fr) 1988-02-11
EP0255712A1 (de) 1988-02-10
JP2551960B2 (ja) 1996-11-06

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