EP0498212B1 - Drückermechanismus für Uhren - Google Patents

Drückermechanismus für Uhren Download PDF

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Publication number
EP0498212B1
EP0498212B1 EP92100973A EP92100973A EP0498212B1 EP 0498212 B1 EP0498212 B1 EP 0498212B1 EP 92100973 A EP92100973 A EP 92100973A EP 92100973 A EP92100973 A EP 92100973A EP 0498212 B1 EP0498212 B1 EP 0498212B1
Authority
EP
European Patent Office
Prior art keywords
spring
fact
mechanism according
watch
beak
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
EP92100973A
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English (en)
French (fr)
Other versions
EP0498212A1 (de
Inventor
John Corlet
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.)
Complications SA
Original Assignee
Complications 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 Complications SA filed Critical Complications SA
Publication of EP0498212A1 publication Critical patent/EP0498212A1/de
Application granted granted Critical
Publication of EP0498212B1 publication Critical patent/EP0498212B1/de
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
    • G04B3/00—Normal winding of clockworks by hand or mechanically; Winding up several mainsprings or driving weights simultaneously
    • G04B3/04—Rigidly-mounted keys, knobs or crowns
    • G04B3/048—Operation exclusively by axial movement of a push-button, e.g. for chronographs
    • 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
    • G04C3/001—Electromechanical switches for setting or display

Definitions

  • the push-piece mechanisms for known timepieces are generally of two types, some more particularly used in mechanical watches which mechanically control a function, chronograph, time-setting, quick setting, etc., and the others which are used in electronic watches that activate an electrical contact.
  • the first type of mechanism for mechanical watches comprises, in addition to the pusher and its rod, at least one lever articulated on a plate or a bridge, one end of which is subjected to the action of a return spring while the another cooperates with the member to be actuated.
  • the scale itself is made of at least two parts articulated one on the other.
  • Mechanisms of the second type generally comprise a push rod subjected to the action of a return spring disposed concentrically with this rod and actuates an electrical contact.
  • This type of mechanism has two disadvantages, firstly the seal between the box watch and the pusher is difficult to produce due to the presence of the return spring and on the other hand, the fact that there is no "click" at the end of the pusher stroke thus indicating that the desired function is well executed.
  • Document EP-B1-0.240.778 also discloses a pusher mechanism comprising a planar spring, having the general shape of a hairpin of branches of unequal length, guided and positioned on the movement plate by several stops or pins to be able to bend and that at least one of its branches can slide relative to this plate.
  • This spring comprises, near the end of its short branch, a support member cooperating with a second support member carried by the middle part of the other branch, long, the end of which actuates a contact.
  • the subject of the present invention is a pusher mechanism for a mechanical or electronic timepiece tending to obviate the drawbacks of the existing mechanisms allowing easy positioning of the spring, a small footprint, great security and great operating precision as well as easy assembly requiring neither precision nor skilled labor and is distinguished by the characteristics set out in claim 1.
  • Figure 1 illustrates a timepiece fitted with two pushers.
  • Figures 2 and 3 are plan views, on a larger scale of the pusher mechanism in the rest position, retracted respectively active, depressed.
  • FIG. 1 illustrates a timepiece, for example a chronograph, comprising a box 1 provided with two pushers 2,3 capable of actuating an electrical contact in the case of an electronic quartz watch or mechanically causing actuation of an organ for controlling a determined function in a mechanical movement.
  • the illustrated mechanism is mounted in a housing 4 formed in the middle part 5 of the watch case 1 and opening onto its peripheral surface as well as on its upper face 5a in contact with the lower face of the bezel 6.
  • This mechanism comprises a pusher or pusher rod 7 mounted on the middle 5 radially and slidingly.
  • this assembly is obtained using pins 8, 9 fixed in the middle and engaged in slots 10, 11 of the push rod 7.
  • a stop 12 consisting of a finger fixed in the middle is also engaged in the slot 10 determines the rest or retracted position of this push rod 7.
  • the pusher may include a conventional cylindrical rod sliding in an element of the watch case.
  • the judgment determining the rest position of the pusher can be carried by the box in a known manner.
  • any known sealing device can be used to make a seal between the middle part 5, the bezel 6 and the stem of the pusher 7.
  • This mechanism also includes a spring 13 also disposed in the housing 4 of the middle part 5 bearing against the bottom of this housing and against the end of the push rod 7.
  • This spring 13 is contained in a plane and seen from above presents a shape closed on itself, one of its ends 14, in contact with the push rod 7 having a rounded tip or spout 19 cooperating with the edge of its other end 15.
  • This end 15 of the spring constitutes a cam having two travel end stops 16,17 and two recesses 18,19a separated by a lift 20.
  • the spring 13 rests against the bottom of the housing 4 of the middle part 5 at two points 21, 22, it is moreover positioned by a cylindrical stop 23 secured to the middle part intended to cooperate with certain parts 24, 25 of the internal edge of the spring 13 located between the support points 21, 22 respectively between the support point 22 and the end 14 of the spring.
  • the spring 13 and the cylindrical stop 23 can be placed in a housing which would be practiced in the movement itself, that is to say a bridge or a plate of this movement or in a circle d 'casing.
  • the pusher 7 remains mounted in the case, the middle part or a bezel.
  • the essential elements of the mechanism, pusher 7 and spring 13, remain identical to those described above and cooperate in the same way but are mounted on different elements of the watch.
  • This operation very exactly simulates the action of a traditional mechanical pusher and presents a "click" indicating to the user that the function is well executed.
  • the end 14 of the spring carries one of the contacts of a switch (not shown), the other of which is on its way fixed on a bridge or a plate. During the stroke of the end 14 of the spring, the switch is closed and controls the desired function.
  • the end 14 or 15 of the spring can control a mechanical function.
  • the cross section of the spring 13 is rectangular, it could in variants be square, round or any other shape.
  • the shape seen in plan of the spring 13 can vary, the important thing is that its free ends cooperate with each other to obtain the desired goal.
  • the holding in position of this spring 13 by the central stop 23 could also be obtained differently, by means of several stops or other organs.
  • the important thing is that the spring 13 can be put in place by simple fitting without any adjustment or fixing operation.
  • the shapes of the housing 4 and the push rod 7 can be changed at will without affecting the design and operation of the mechanism.
  • the spring 13 is preferably inscribed in a rectangle and in the rest state (FIG. 2) the two sides carrying the free ends of the spring touch this rectangle at one point while the other two sides touch it at two points.
  • the exact shape and dimensions of the spring 13 depend in particular on the desired operating force for the plunger which must be as close as possible to that of the existing mechanical plungers.
  • the material in which the spring 13 is made is made of spring steel, for example of the "Durmico" type commonly used in this sector.
  • the dimensions of the rectangle circumscribed by the spring 13 are of the order of 3.5 mm by 2.5 mm, its thickness and its average width of the order of some tenth of a millimeter. Despite the very small dimensions of this spring, its reliability is very high and it can withstand tens of thousands of actuations at least.
  • the pusher mechanism or mechanism actuated by the pusher consists of a single piece, the spring. In any case, whatever the embodiment of this mechanism, it always has only one moving part, the spring 13.
  • This mechanism is thus simple, inexpensive, easy and immediate assembly, very reliable and requiring no adjustment. It can also be mounted on the watch case, on the casing ring or on the watch movement, which makes it easy for the designer of a caliber to use.

Claims (8)

  1. Mechanismus für eine Uhr zur Betätigung eines mechanischen oder elektrischen Steuerorgans mittels eines Drückers (7), der eine erste Ruhelage und eine zweite eingedrückte Lage einnehmen kann, wobei der Mechanismus durch eine flache, geformte, einstückige Feder gebildet wird, dadurch gekennzeichnet, dass die Feder (13) ein in sich geschlossenes Stück bildet, und dass eines der Ende (14) der Feder (13) in ständiger Berührung mit einem im Gehäuse verschiebbar gelagerten Drückerstift (7) steht, dass dieses Ende (14) der Feder (13) eine Nase (19) aufweist, die in ständiger Berührung mit der inneren Seitenfläche des anderen Endes (15) der Feder (13) steht, welche innere Seitenfläche zwei Endan-schläge (16,17), wie auch eine zwei Vertiefungen (18,19a) trennende Erhöhung (20) aufweist, und dass der Schenkel der Feder, der dem Schenkel gegenüberliegt, von dessen Ende die Nase (19) getragen wird, durch zwei Punkte (21,22) in ständiger Berührung steht mit der Wand einer Kammer (4), die im Uhrgehäuse (5) angeordnet ist und die die Feder (13) aufnimmt.
  2. Mechanismus nach Anspruch 1, dadurch gekennzeichnet, dass die Feder (13) in einer Kammer (4) angeordnet ist, die in einem Teil der Uhr, im Uhrwerk, im Verschlusskreis, im Gehäusemittelteil, im Glasrand oder im Uhrgehäuse vorgesehen ist.
  3. Mechanismus nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass sich im Ruhezustand der Feder (13) die Nase (19) des ersten Endes (14) auf den ersten, sich am Endstück des anderen Endes (15) des Feder (13) befindenden Anschlag (16) abstützt.
  4. Mechanismus nach Anspruch 3, dadurch gekennzeichnet, dass sich in Aktivlage die Nase (19) des ersten Endes (14) der Feder (13) in der Vertiefung (18) befindet, die in der Nähe des zweiten Ansschlags (17) des anderen Endes (15) der Feder (13) liegt, und dass sie durch ihre Eigenelastizität in die Ruhelage zurückkehrt, wenn sie losgelassen wird.
  5. Mechanismus nach Anspruch 4, dadurch gekennzeichnet, dass die Seite der Feder, die in der Nähe der sich durch die Nase (19) begrenzten Seite liegt, einen Zentralteil umfasst, der U-förmig ist und sich ins Innere der Feder erstreckt.
  6. Mechanismus nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass er zumindest einen Anschlag oder einen Bolzen (23) aufweist, der fest mit einem Teil der Uhr verbunden ist und der sich in den Zentralraum der Feder (13) erstreckt.
  7. Mechanismus nach Anspruch 6, dadurch gekennzeichnet, dass die Feder (13) an zwei Punkten (24,25) mit diesem Bolzen (23) in Berührung tritt.
  8. Mechanismus nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Feder (13) einen rechteckigen oder quadratischen Querschnitt aufweist.
EP92100973A 1991-02-05 1992-01-22 Drückermechanismus für Uhren Expired - Lifetime EP0498212B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH344/91A CH681189B5 (de) 1991-02-05 1991-02-05
CH344/91 1991-02-05

Publications (2)

Publication Number Publication Date
EP0498212A1 EP0498212A1 (de) 1992-08-12
EP0498212B1 true EP0498212B1 (de) 1995-08-02

Family

ID=4184877

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92100973A Expired - Lifetime EP0498212B1 (de) 1991-02-05 1992-01-22 Drückermechanismus für Uhren

Country Status (5)

Country Link
US (1) US5172351A (de)
EP (1) EP0498212B1 (de)
JP (1) JPH06105575B2 (de)
CH (1) CH681189B5 (de)
DE (2) DE69203738T2 (de)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH705461A1 (fr) 2011-09-05 2013-03-15 Manuf Roger Dubuis Sa Dispositif de commande pour pièce d'horlogerie.
CN104024961B (zh) 2011-12-27 2018-05-29 劳力士有限公司 用于钟表机芯的弹簧
EP2798414B1 (de) * 2011-12-27 2024-03-20 Rolex S.A. Feder für uhrwerk
NL2023823B1 (en) * 2019-09-12 2021-05-17 Flexous Mech Ip B V Watch

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5235314B1 (de) * 1971-07-12 1977-09-08
JPS55119324A (en) * 1979-03-06 1980-09-13 Suwa Seikosha Kk Switching structure for watch
JPS618396Y2 (de) * 1980-06-06 1986-03-14
JPS57124273A (en) * 1981-01-23 1982-08-03 Seiko Instr & Electronics Ltd Switching and correcting mechanism for winding stem of timepiece
CH645235GA3 (de) * 1981-04-23 1984-09-28
CH648984GA3 (de) * 1983-05-05 1985-04-30
CH664863GA3 (de) * 1986-04-09 1988-04-15
EP0274550A1 (de) * 1987-01-10 1988-07-20 Pforzheimer Uhren-Rohwerke PORTA GmbH & Co. Vorrichtung zur axialen Spielbegrenzung des Zeigerwerks einer Kleinuhr

Also Published As

Publication number Publication date
DE69203738D1 (de) 1995-09-07
CH681189GA3 (de) 1993-02-15
US5172351A (en) 1992-12-15
DE69203738T2 (de) 1996-02-22
DE498212T1 (de) 1993-07-08
CH681189B5 (de) 1993-08-13
JPH05114330A (ja) 1993-05-07
EP0498212A1 (de) 1992-08-12
JPH06105575B2 (ja) 1994-12-21

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