EP1089144A1 - Kontaktbügel für multifunktionellen Druckknopf - Google Patents

Kontaktbügel für multifunktionellen Druckknopf Download PDF

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Publication number
EP1089144A1
EP1089144A1 EP99119316A EP99119316A EP1089144A1 EP 1089144 A1 EP1089144 A1 EP 1089144A1 EP 99119316 A EP99119316 A EP 99119316A EP 99119316 A EP99119316 A EP 99119316A EP 1089144 A1 EP1089144 A1 EP 1089144A1
Authority
EP
European Patent Office
Prior art keywords
flange
contact
blade
rod
base
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.)
Granted
Application number
EP99119316A
Other languages
English (en)
French (fr)
Other versions
EP1089144B1 (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 multifunction contact flange in a single piece of simple and economical design which acts as key to prevent the extraction of the pusher after its installation, as return spring in neutral position and as contact means by example on a printed circuit board.
  • the invention also relates to a contact device in which several flanges of the previous type are placed end to end.
  • Such a flange, or such a contact device finds its application in a wide variety of fields, particularly in ordering small electronic devices, such as coins of watchmaking.
  • a control mechanism for watch movement includes a spring wire positioned between two supports arranged on either side of the push rod and the middle part of which is engaged in a groove in said rod, thereby filling the double key and return spring function, the contact as such being ensured by the action of the end of the push rod on a blade tilting.
  • a push mechanism is produced at using a flat metal spring cut into a complex outline substantially U-shaped by being fixed and / or guided by several studs integral with the platinum, so that one of the branches has sufficient flexibility to close a contact when a force is exerted on it via from the end of the push rod.
  • This mechanism therefore fulfills the functions return spring and contact means but has no function of key.
  • the mechanism proposed in patent GB 2,040,517 is formed by a pre-cut metal blade with a number of folds outside of its general plane parallel to the stage.
  • the blade is attached to one of its ends by a curved part anchored in the plate and by a stud secured to the plate.
  • the blade At the level of the push rod, and near its end the blade has a recess bringing its plane below the general plan 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 in the push rod to form a key and return spring, on the other hand a rigid tab, curved towards the outside of the plate and located in the axis of the push rod to form contact on an elastic blade located opposite.
  • a rigid spout extending beyond the rod abuts against an edge of the opening to properly position the pusher and arm the blade forming a spring.
  • the object of the invention is to overcome the drawbacks of the prior art aforementioned by providing a contact flange formed by a metal blade cut and folded to ensure at least the functions of spring, key and contact, further enabling a lower contact force to be obtained that the force to be exerted on the pusher head.
  • the invention relates to a multifunction contact flange associated with at least one pusher having a head and a rod crossing the middle of a case closed by at least one bottom and comprising a plate and a metal grid, characterized in that said flange is formed of a single part comprising a flat metal base substantially parallel to the bottom and provided with immobilization means in the housing on one side of the rod and at least one elastic blade substantially perpendicular to the base, extending beyond the stem following part of the inner circumference of the middle part, said blade having in line with the rod a first prestressed portion having a notch cooperating with a groove formed near the end of the rod to form a key and push back in position of rest, and a second portion having a flexibility greater than the first portion and the end of which closes a contact of a printed circuit with a force lower than that which is necessary to actuate the pusher.
  • flanges of the type previous can be arranged next to each pusher.
  • the bases of each flange are placed end to end tip to form a single base around the circumference of the middle and comprising a plurality of flexible blades.
  • FIG. 1 to 4 there is shown by way of example a case of an electronic timepiece with digital display comprising a middle part 2 and a case back 3 in one piece, commonly referred to as back case 4 and obtained for example by molding a plastic material.
  • the base 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 a printed circuit is disposed.
  • 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 a window 9.
  • This housing 1 includes a mechanism making it possible to establish contact on a range of the curved tab 8 of the printed circuit 7.
  • This mechanism is simply composed of a multifunction metal flange 20 actuated by a pusher 10 on the head 11 of which a force is exerted F transmitted by the rod 12 which has near its end a groove 17 visible in Figure 3.
  • the flange 20 is obtained by cutting or stamping a metal sheet according to a particular contour and by folding, so that, after its implementation place in the housing, exercise both the functions of key and spring return push 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 of which a first part 23 is connected thereto over part of its length by a fold 21a.
  • This first part 23 is extended beyond a fold 23a by a second part 24 intended to extend beyond the rod 12.
  • Part 24 includes in its middle part a notch 30 intended to come 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 internal surface of the middle part 2 are made so that the free portion of the first part 23, beyond the fold 21a and the second part 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 band, connected to the second part 24 by a fold 24a and formed of three portions 25, 26, 27 connected together 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 carried out in the same direction to bend the blade according to a polygonal line which substantially follows the internal wall of the middle part 2.
  • the curved shape of the portion 25 results only from constraints of construction linked to the other components or supports of the movement.
  • the strip portion, formed of zones 26 and 27, is characterized by the fact that it presents over most of its length, for example from from the middle of zone 26, a section smaller than that of the rest of the blade.
  • this lower section is obtained by giving this distal portion of the blade 22 a width less than the portion joining the base as it also appears in the sectional representations of Figures 3 and 4.
  • This configuration gives the part distal greater flexibility so that the curved tab 28 presses on the contact pad 8 of the printed circuit 7 with force f less than force F to be exerted on the pusher.
  • the base 21 of the flange 20 further comprises a curved strip 29 outside the general plan of the case to establish contact for example between an area of the printed circuit 7 and the positive pole of the battery cover by through the grid 15.
  • this includes two holes 18, 19 into which two tenons 13, 15 secured to the plate to allow positioning precise in the horizontal plane, the assembly being held axially by two solder points 16 on the grid 15. It is obvious that other means equivalents can be used to obtain axial positioning, such as the deformation of the heads of the tenons 13, 14 or the engagement of washers on their end.
  • the multifunction flange according to the invention can be simple and economical, only requires the installation of two studs in the bottom of the case or in a plate secured to it, and can be set up with a reduced number of manipulations that can easily be executed by a robot in an assembly line automatic. Indeed, with particular reference to Figure 2, after fitting the pusher 10, it suffices to slightly compress the blade to engage the notch 30 in the groove 17 of the rod, then the pins 13, 15 in holes 18, 19 and make two weld points 16, for example at laser.
  • FIG. 5 there is shown schematically an embodiment a multifunction contact flange for a housing comprising two pushers 10a, 10b associated with two blades 22a, 22b, as described previously, the difference is that the basics of each blade are joined to form a ring 31 comprising two extensions radial 32, 33 in which the fixing holes 18, 19 are drilled. curved ends 28a, 28b obviously bear on areas of different contact of the printed circuit 7.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Switches With Compound Operations (AREA)
  • Electromechanical Clocks (AREA)
  • Electric Clocks (AREA)
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 true EP1089144A1 (de) 2001-04-04
EP1089144B1 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)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7419297B2 (en) 2002-10-28 2008-09-02 Eta Sa Manufacture Horlogere Suisse Control device for a push-piece, in particular for time piece, and portable electronic instrument comprising same
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
NL2023823B1 (en) * 2019-09-12 2021-05-17 Flexous Mech Ip B V Watch

Citations (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
GB2040517A (en) 1979-02-01 1980-08-28 Bulova Watch Co Ltd Manual contact actuating arrangement for an electronic watch
CH621034GA3 (en) 1974-12-26 1981-01-15 Control mechanism for watch movement
US4818830A (en) 1986-04-09 1989-04-04 Eta Sa Fabriques D'ebauches Pushpiece mechanism for a timepiece

Patent Citations (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
CH621034GA3 (en) 1974-12-26 1981-01-15 Control mechanism for watch movement
GB2040517A (en) 1979-02-01 1980-08-28 Bulova Watch Co Ltd Manual contact actuating arrangement for an electronic watch
US4818830A (en) 1986-04-09 1989-04-04 Eta Sa Fabriques D'ebauches Pushpiece mechanism for a timepiece

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7419297B2 (en) 2002-10-28 2008-09-02 Eta Sa Manufacture Horlogere Suisse Control device for a push-piece, in particular for time piece, and portable electronic instrument comprising same
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
NL2023823B1 (en) * 2019-09-12 2021-05-17 Flexous Mech Ip B V Watch

Also Published As

Publication number Publication date
ATE421721T1 (de) 2009-02-15
DE69940346D1 (de) 2009-03-12
EP1089144B1 (de) 2009-01-21

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