EP1089144B1 - Kontaktbügel für multifunktionellen Druckknopf - Google Patents

Kontaktbügel für multifunktionellen Druckknopf Download PDF

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Publication number
EP1089144B1
EP1089144B1 EP99119316A EP99119316A EP1089144B1 EP 1089144 B1 EP1089144 B1 EP 1089144B1 EP 99119316 A EP99119316 A EP 99119316A EP 99119316 A EP99119316 A EP 99119316A EP 1089144 B1 EP1089144 B1 EP 1089144B1
Authority
EP
European Patent Office
Prior art keywords
contact
base
stem
push
button
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
EP99119316A
Other languages
English (en)
French (fr)
Other versions
EP1089144A1 (de
Inventor
Clément Meyrat
Laurent Pantet
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.)
Swatch Group Management Services AG
Original Assignee
Swatch Group Management Services AG
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 Swatch Group Management Services AG filed Critical Swatch Group Management Services AG
Priority to EP99119316A priority Critical patent/EP1089144B1/de
Priority to DE69940346T priority patent/DE69940346D1/de
Priority to AT99119316T priority patent/ATE421721T1/de
Publication of EP1089144A1 publication Critical patent/EP1089144A1/de
Application granted granted Critical
Publication of EP1089144B1 publication Critical patent/EP1089144B1/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 present invention relates to a timepiece comprising a multifunctional contact flange in one piece of simple and economical design that acts as a key to prevent the extraction of the plunger after its introduction, as a return spring in neutral position and as contact means for example on a printed circuit board.
  • the invention also relates to a contact device in which several flanges of the above type are placed end to end.
  • Such a flange, or such a contact device finds its application in very varied fields, more particularly in the control of small electronic devices, such as timepieces.
  • a control mechanism for watch movement comprises a spring wire positioned between two supports disposed on either side of the push rod and whose middle portion is engaged in a groove of said rod, thus fulfilling the dual function of key and return spring, the contact as such being ensured by the action of the end of the push rod on a tilting blade.
  • a push mechanism is produced by means of a flat metal spring cut into a complex U-shaped contour while being fixed and / or guided by a plurality of studs integral with the plate, so that one of the branches has sufficient flexibility for closing a contact when a force is exerted thereon through the end of the push rod.
  • This mechanism thus performs the functions of return spring and contact means but has no key function.
  • the mechanism proposed in GB Patent 2,040,517 is formed by a pre-cut metal blade which has a number of folds outside its general plane parallel to the plate.
  • the blade is attached to one its ends by a curved portion anchored in the plate and a tenon secured to the plate.
  • the blade At the push rod, and near its end the blade has a recess bringing its plane below the general plane of the plate in a recess made for this purpose.
  • This end comprises on the one hand an opening whose edge is engaged in a groove of the push rod to form a key and return spring, on the other hand a rigid tab, bent outwardly of the plate and located in the axis of the push rod to form contact on a resilient blade located opposite.
  • a rigid spout extending beyond the stem abuts against an edge of the opening to properly position the pusher and arm the spring blade.
  • the object of the invention is to overcome the disadvantages of the aforementioned prior art by providing a timepiece comprising a contact flange formed by a metal blade cut and folded to ensure at least the functions of spring, key and contact , further allowing to obtain a lower contact force than the force to be exerted on the pusher head.
  • the invention relates to a timepiece according to claim 1.
  • flanges of the above type may be arranged opposite each push.
  • the bases of each flange are placed end to end to form a single base around the perimeter of the middle and comprising a plurality of flexible blades.
  • FIG. 1 to 4 an example of a case of an electronic timepiece with a digital display comprising a caseband 2 and a bottom 3 in one piece, commonly referred to as bottom-frame 4 and obtained for example by molding a plastic material.
  • the bottom 3 comprises a plate 5 and a metal grid 15 shaped to receive and position the various components of the timepiece, shown only partially in the drawings by an LCD display module 6, below which is arranged a printed circuit flexible 7 provided with a tab 8 curved on the edge of the display cell 6 to serve as a contact area.
  • the housing is closed by an ice-cream 9.
  • This housing 1 comprises a mechanism making it possible to make contact on a range of the curved tab 8 of the printed circuit 7.
  • This mechanism is simply composed of a multifunctional metal flange 20 actuated by a push-button 10 on the head 11 which exerts a force F ⁇ transmitted by the rod 12 which has near its end a groove 17 visible on the figure 3 .
  • the flange 20 is obtained by cutting or stamping a metal sheet according to a particular contour and by folding so as to after its introduction into the housing, exercise both the key functions and the plunger return spring and contact means.
  • the flange 20 essentially comprises a base 21 parallel to the general plane of the housing and a blade 22 perpendicular to the base 21 and a first portion 23 of which is connected thereto over part of its length by a fold 21a .
  • This first portion 23 is extended beyond a fold 23a by a second portion 24 intended to extend beyond the rod 12.
  • the portion 24 comprises in its middle part a notch 30 intended to engage in the groove 17 of the rod 12 to form a key.
  • the fold 23a and the positioning of the base 21 relative to the inner surface of the middle part 2 are made such that the free portion of the first part 23, beyond the fold 21a and the second portion 24 are prestressed to form together the return spring of the pusher 10 in the rest position.
  • the blade 22 extends beyond the pusher by a strip, connected to the second portion 24 by a fold 24a and formed of three portions 25, 26, 27 interconnected by folds 25a, 26a, the zone 27 having at its end a small curved tab 28 in a fold 27a made to deform the blade in a direction opposite to the deformations resulting from the folds 23a, 24a, 25a and 26a all made in the same direction to bend the blade along a polygonal line which substantially follows the wall 2.
  • the curved shape of the portion 25 results solely from construction constraints related to the other components or supports of the movement.
  • the portion of strip, formed of the zones 26 and 27, is characterized in that it has on most of its length, for example from the middle of the zone 26, a section smaller than that of the remainder of the blade.
  • this lower section is obtained by giving this distal portion of the blade 22 a width smaller than the portion joining the base as it also appears on the sectional representations of the Figures 3 and 4 .
  • This configuration gives the distal portion greater flexibility so that the bent tab 28 presses the contact pad 8 of the printed circuit 7 with a force f ⁇ less than the force F ⁇ to be exerted on the pusher.
  • this difference in flexibility could be obtained in various other ways, for example by having a band of the same width from one end to the other, and by cutting a window in the distal portion. or by making said portion thinner. Similarly, one can achieve a blade having a greater number of folds, until it is perfectly curved to follow the inner periphery of the middle part.
  • the base 21 of the flange 20 further comprises a blade 29 bent out of the general plane of the housing to establish a contact for example between an area of the printed circuit 7 and the positive pole of the battery cover via the gate 15 .
  • the multifunctional flange according to the invention can be manufactured in a simple and economical way, requires only the implantation of two tenons in the bottom of the case or in a plate secured to it, and can be set up. place with a reduced number of manipulations that can easily be performed by a robot in an automatic assembly line. Indeed, with particular reference to the figure 2 after placing the pusher 10, it is sufficient to slightly compress the blade to engage the notch 30 in the groove 17 of the rod, then the pins 13, 15 in the holes 18, 19 and perform two welding points 16, for example laser.
  • FIG 5 schematically an embodiment of a multifunction contact flange for a housing comprising two pushers 10a, 10b associated with two blades 22a, 22b, as described above, the difference residing in the fact that the bases of each blade are joined to form a ring 31 comprising two radial extensions 32, 33 in which are drilled the fixing holes 18, 19.
  • the curved ends 28a, 28b of course support different contact areas of the printed circuit 7.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Switches With Compound Operations (AREA)
  • Electric Clocks (AREA)
  • Electromechanical Clocks (AREA)

Claims (6)

  1. Zeitmessgerät, umfassend ein Gehäuse, das durch wenigstens einen Boden (3) verschlossen ist und in dem eine Platine (5), ein metallisches Gitter (15), wenigstens ein Drücker (10), der einen Kopf (11) und eine durch den Mittelteil des Gehäuses verlaufende Welle (12) aufweist, und wenigstens ein dem mindestens einen Drücker zugeordneter Flansch (20) montiert sind, dadurch gekennzeichnet, dass der Flansch aus einem Einzelstück besteht, das eine flache metallische Basis (21), die merklich parallel zum Boden (3) ist und mit Mitteln (18, 19) zum Festhalten im Gehäuse auf einer Seite der Welle (12) versehen ist, und wenigstens eine elastische Klinge (22), die merklich senkrecht zur Basis (21) steht und sich über die Welle (12) hinaus erstreckt, wobei sie einem Teil des inneren Umfangs des Mittelteils (2) folgt, umfasst, wobei die Klinge im Bereich der Welle (12) einen ersten vorgespannten Abschnitt (23, 24), der eine Kerbe (30) aufweist, die mit einer nahe beim Ende der Welle (12) ausgebildeten Kehle (17) zusammenwirkt, um einen Keil und ein Mittel zum Rückstellen des Drückers in die Ruheposition zu bilden, und einen zweiten Abschnitt (25, 26, 27), der eine grössere Biegsamkeit aufweist als der erste Abschnitt und dessen Ende (28) einen Kontakt (8) einer gedruckten Schaltung (7) mit einer Kraft schliesst, die kleiner ist als diejenige, die nötig ist, um den Drücker (10) zu betätigen, umfasst.
  2. Zeitmessgerät nach Anspruch 1, dadurch gekennzeichnet, dass der zweite Abschnitt (26, 27) der Klinge (22) einen Querschnitt hat, der kleiner ist als der Querschnitt des ersten Abschnitts (23, 24).
  3. Zeitmessgerät nach Anspruch 2, dadurch gekennzeichnet, dass der zweite Abschnitt (26, 27) der Klinge eine Breite hat, die kleiner ist als die Breite des ersten Abschnitts (23, 24).
  4. Zeitmessgerät nach Anspruch 1, dadurch gekennzeichnet, dass die Festhaltemittel (18, 19) der Basis durch zwei kreisförmige Öffnungen (18, 19), durch die zwei Wellen (13, 14) verlaufen, wovon ein Ende mit dem Boden (3) oder mit einer Platine (5), die parallel zum Boden (3) ist, fest verbunden ist, und durch zwei Schweisspunkte auf dem Gitter (15) gebildet sind.
  5. Zeitmessgerät nach Anspruch 1, dadurch gekennzeichnet, dass die Basis (21) zudem einen Finger (29) umfasst, der aus der Ebene des Gehäuses hinaus umgebogen ist, um einen Kontakt auf der gedruckten Schaltung (7) zu bilden.
  6. Zeitmessgerät nach Anspruch 1, dadurch gekennzeichnet, dass die Basis (31) dem gesamten Umfang des Mittelteils folgt und eine Vielzahl von biegsamen Klingen (22a, 22b) umfasst, die gegenüber einer gleichen Anzahl von Drückern (10a, 10b) angeordnet sind.
EP99119316A 1999-09-29 1999-09-29 Kontaktbügel für multifunktionellen Druckknopf Expired - Lifetime EP1089144B1 (de)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP99119316A EP1089144B1 (de) 1999-09-29 1999-09-29 Kontaktbügel für multifunktionellen Druckknopf
DE69940346T DE69940346D1 (de) 1999-09-29 1999-09-29 Kontaktbügel für multifunktionellen Druckknopf
AT99119316T ATE421721T1 (de) 1999-09-29 1999-09-29 Kontaktbügel für multifunktionellen druckknopf

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP99119316A EP1089144B1 (de) 1999-09-29 1999-09-29 Kontaktbügel für multifunktionellen Druckknopf

Publications (2)

Publication Number Publication Date
EP1089144A1 EP1089144A1 (de) 2001-04-04
EP1089144B1 true EP1089144B1 (de) 2009-01-21

Family

ID=8239084

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99119316A Expired - Lifetime EP1089144B1 (de) 1999-09-29 1999-09-29 Kontaktbügel für multifunktionellen Druckknopf

Country Status (3)

Country Link
EP (1) EP1089144B1 (de)
AT (1) ATE421721T1 (de)
DE (1) DE69940346D1 (de)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1708734B (zh) * 2002-10-28 2010-09-01 Eta瑞士钟表制造股份有限公司 按钮控制装置以及包含该装置的便携式电子仪器
EP1416343A1 (de) 2002-10-28 2004-05-06 ETA SA Manufacture Horlogère Suisse Drucktastenschalter, insbesondere für Uhrwerke, und mit einem solchen Schalter versehenes tragbares elektronisches Gerät
NL2023823B1 (en) * 2019-09-12 2021-05-17 Flexous Mech Ip B V Watch

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE347620C (de) * 1919-09-23 1922-01-23 Edmund Magerle Druckknopfkontakt
CH568612B5 (de) * 1973-04-25 1975-10-31 Suisse Horlogerie
JPS5619743Y2 (de) 1974-12-26 1981-05-11
CH618829B (de) 1979-02-01 Bulova Watch Co Inc Manuelle kontaktbetaetigungsanordnung fuer elektronische uhr.
CH664863GA3 (de) 1986-04-09 1988-04-15

Also Published As

Publication number Publication date
ATE421721T1 (de) 2009-02-15
EP1089144A1 (de) 2001-04-04
DE69940346D1 (de) 2009-03-12

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