EP1574918B1 - Mécanisme de positionnement et de blocage de moyens d'affichage dans une ouverture du cadran d'un appareil électronique portable - Google Patents

Mécanisme de positionnement et de blocage de moyens d'affichage dans une ouverture du cadran d'un appareil électronique portable Download PDF

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Publication number
EP1574918B1
EP1574918B1 EP04101004A EP04101004A EP1574918B1 EP 1574918 B1 EP1574918 B1 EP 1574918B1 EP 04101004 A EP04101004 A EP 04101004A EP 04101004 A EP04101004 A EP 04101004A EP 1574918 B1 EP1574918 B1 EP 1574918B1
Authority
EP
European Patent Office
Prior art keywords
display means
portable electronic
dial
electronic apparatus
cam
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
EP04101004A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1574918A1 (fr
Inventor
Gérald Maurice Matthey
Pascal Robert
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 Manufacture Horlogere Suisse
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 Manufacture Horlogere Suisse filed Critical ETA SA Manufacture Horlogere Suisse
Priority to DE602004023814T priority Critical patent/DE602004023814D1/de
Priority to EP04101004A priority patent/EP1574918B1/fr
Priority to TW094107038A priority patent/TWI361340B/zh
Priority to US11/076,421 priority patent/US7313054B2/en
Priority to JP2005068777A priority patent/JP4843233B2/ja
Priority to CN200510064034A priority patent/CN100576113C/zh
Publication of EP1574918A1 publication Critical patent/EP1574918A1/fr
Priority to HK05110483.8A priority patent/HK1078659A1/xx
Application granted granted Critical
Publication of EP1574918B1 publication Critical patent/EP1574918B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G04—HOROLOGY
    • G04G—ELECTRONIC TIME-PIECES
    • G04G17/00—Structural details; Housings
    • G04G17/02—Component assemblies
    • G04G17/04—Mounting of electronic components
    • G04G17/045—Mounting of the display
    • 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
    • G04B19/06—Dials
    • G04B19/065—Dials with several parts

Definitions

  • the present invention relates generally to a system for positioning and blocking display means in a portable electronic device.
  • the invention relates more particularly to the mechanical means used to ensure the positioning and blocking of a liquid crystal cell facing an opening made through the dial of a watch.
  • the invention also relates to a method of mounting a display module in a portable electronic device.
  • Such a watch 50 conventionally comprises a housing 51 comprising a bottom and closed on the top by means of an ice, said housing containing a watch movement controlled by an electronic circuit, not shown, a dial 52 supporting means for indicating the hour, for example needles 53 driven by the cogs of the watch movement.
  • the dial 52 comprises an opening 54 intended to leave visible display means 55, such as for example a liquid crystal display or LCD.
  • the display means 55 are mounted on a support piece, not visible in this figure, disposed under the dial and fixed relative thereto.
  • the support piece has an imprint intended to receive the display means 55 and to position them relative to the opening 54 made in the dial 52 so that they are visible through the dial 52 via the opening 54.
  • a light guide or a holding plate is placed on top and then sealed on the support piece preventing any movement of the display means 55 according to an axis perpendicular to the average plane of the support piece.
  • the idea according to the invention consists in providing precise positioning means and means for blocking the display means, with the aim of being able to easily seal a light guide over the display means for a fixed and precise position of the latter, in a plane parallel to the dial, with respect to the opening which is practiced there.
  • the present invention relates to a portable electronic device whose characteristics are set forth in claim 1.
  • the invention also relates to the method of mounting a display module in a portable electronic device, the steps of this method being listed in claim 9.
  • the invention relates, as mentioned above, a portable electronic device comprising a dial in which is formed an opening through which are visible display means.
  • This apparatus also comprises an electronic control circuit for controlling the display means, advantageously formed by a liquid crystal display (LCD).
  • LCD liquid crystal display
  • These display means can provide the user of the watch, for example, a time indication, but also other types of information, such as, for example, an alarm time, the ambient temperature, the atmospheric pressure, etc.
  • the portable electronic device in question is preferably an electronic watch, an exemplary embodiment of which is provided to the figure 5 , although the invention can be applied to other portable electronic devices, such as a cell phone or handheld electronic games.
  • the figure 1 represents a top view of a support part 1 in which display means 2 are arranged before their positioning in a precise manner on the support part 1.
  • the support piece 1 is mounted in the case of the watch fixedly relative to the dial and preferably in a mean plane substantially parallel to the mean plane of the dial.
  • the support part 1 advantageously has a cavity or cavity 3 intended to receive the display means 2.
  • Support elements 4a-4d are provided around the periphery of the cavity so as to retain the display means 2, in a plane parallel to the mean plane of the dial, or advantageously in the middle plane of the support part 1 (corresponding to the plane of view).
  • the support part 1 also has at least one first bearing surface, advantageously two bearing surfaces 5a-5b, along a first axis (A) in the middle plane of the support part 1, and at least a second surface support, advantageously two bearing surfaces 6a-6b, along a second axis (B) also in the mean plane of the support part 1 and preferably perpendicular to the first axis (A).
  • the at least first 5a-5b and second 6a-6b bearing surfaces define a fixed position determined in the mean plane of the support piece 1, parallel to the mean plane of the dial (not shown). This position is chosen according to the position of the opening of the dial.
  • first bearing surfaces 5a-5b are widely spaced along the first axis (A) so as to ensure a stable support in the direction perpendicular to this first axis and that the second bearing surfaces 6a 6b are widely spaced along the second axis (B) so as to ensure a stable support in the direction perpendicular to this second axis (B).
  • first 7 and second 8 mechanical means for moving the display means in abutment respectively against the first 5a-5b and second 6a-6b bearing surfaces.
  • These mechanical means 7 and 8 are arranged opposite the corresponding bearing surfaces with respect to the cavity 3 of the support part 1.
  • At least one of the first or second mechanical means, and advantageously the first and the second mechanical means, are formed by mechanical means for transforming a rotational movement into a translation movement.
  • eccentrics 7 and 8 are used as mechanical means. These eccentrics 7 and 8 have the advantage of occupying only a small space while allowing the display means 2 to be moved over a distance depending on the respective thrust curved surface 9-10 of each eccentric 7-8. sufficient to bring the display means 2 abutting against the opposite bearing surfaces.
  • eccentrics 7 and 8 are arranged free to rotate, preferably in housings 11 and 12 provided for this purpose on the support part 1. Alternatively, it is also possible to attach the eccentrics on the underside of the dial disposed above the support piece.
  • the housings 11 and 12 are each provided with a tooth 13-14 cooperating with a corresponding fluted circular portion 15-16 of the eccentric 7-8 so as to ensure a stepwise rotation of the corresponding eccentric and therefore a gradual displacement of the display means 2. It will further be noted that at one end of each fluted portion 15-16 is provided a stop surface 17-18 capable of resting on the corresponding tooth 13-14, as illustrated in FIG. figure 1 , to position the eccentric 7-8 in its housing 9-10 before rotation, so as to indicate the direction of rotation ensuring the displacement of the display means 2 to the opposite bearing surfaces 5-6.
  • the figure 2 represents a view similar to that of the figure 1 , on which the display means 2 have been moved in abutment against the first 5a-5b and second 6a-6b bearing surfaces so that they are in the precise position defined by the bearing surfaces relative to the opening practiced in the dial of the watch.
  • This position of the display means 2 is achieved by the actuation of the mechanical means, here the eccentric 7 and 8 which have been rotated in the appropriate direction, ie that ensuring the displacement of the display means 2 towards the bearing surfaces opposites 5a-5b and 6a-6b.
  • the curved thrust surface 9 comes into contact with the display means 2 and exerts a thrust perpendicular to the axis (A) translational driving the display means 2 from their initial initial position on the support piece 1 towards a position in abutment against the opposed bearing surfaces 5a-5b.
  • the curved thrust surface 10 comes into contact with the display means 2 and exerts a thrust perpendicular to the axis (B) translational driving the display means 2 from their initial approximate position on the support piece 1 to a position in abutment against the opposed bearing surfaces 6a-6b.
  • the display means 2 as represented on the figure 2 , have been moved in abutment against the first 5a-5b and the second 6a-6b bearing surfaces and are therefore positioned in the fixed position defined by these bearing surfaces relative to the opening of the dial of the watch.
  • the grooved portion 15-16 of the eccentrics 7-8 cooperating with the tooth 13-14 of the corresponding housing 9-10 ensures the locking of the display means 2 in the fixed position, abutting against the surfaces support 5-6 opposite.
  • the eccentrics 7 and 8 comprise elastic means for absorbing the mechanical stresses exerted on the display means 2 in the fixed position. These elastic means are made of preferably by means of a recess 19-20 made along the curved thrust surface 9-10.
  • the display means 2 After the precise positioning and blocking of the display means 2, it is intended to fix them along the axis perpendicular to the mean plane of the support part 1 by sealing a light guide, not shown on the Figures 1 and 2 , above the display means 2.
  • the light guide can be sealed by any known means, in particular by screwing, gluing or thermo-welding. According to the example shown in figure 2 , the light guide is placed over the display means 2 by means of the pins 21 and 22 and then sealed by means of the screws 23 and 24.
  • the figure 3 represents an enlarged side view of an eccentric (7 or 8) according to the preferred embodiment of the invention described in connection with the Figures 1 and 2 .
  • the eccentric, bearing the overall reference numeral 30, comprises a fastening element 31 fitting into a hole made in the bottom of the housing of the support piece, so as to ensure that the eccentric 30 is free to rotate around an axis (C) perpendicular to the average plane of the support piece.
  • the eccentric 30 further comprises in its upper part, a grooved portion 32 substantially circular centered on the axis of rotation (C) and a second portion 33 off-center with respect to the axis of rotation (C) and centered relative to the axis of rotation (D).
  • a groove 34 is provided on the upper part ensuring easy rotation of the eccentric 30, for example by means of a screwdriver.
  • the figure 4 represents an enlarged top view of an eccentric (7 or 8) according to the preferred embodiment of the invention described in connection with the Figures 1 and 2 .
  • the same numerical references were used for the elements common to the figure 3 .
  • the fluted portion 32 of the eccentric 30 has a toothing 35 capable of cooperating with the tooth of the corresponding housing, elements shown in FIGS. Figures 1 and 2 .
  • the second portion 33 is centered around the axis (D) parallel to the axis of rotation (C) and has a curved thrust surface 36, preferably in the form of a spiral, ie with a radius increasing with respect to axis (D).
  • This curved thrust surface 36 is intended to contact the display means to move them in translation in the mean plane of the support piece along an axis substantially perpendicular to the contact zone between the surface 36 and the display means. It should be noted for this purpose, that the thrust surface 36 is preferably slightly corrugated to reduce the risk of damage to the display means during their movement.
  • the travel displacement travel is obtained by the spiral shape of the thrust surface 36 and by its off-center position relative to the axis of rotation (C). eccentric 30 which reduces the size of the eccentric for a specific displacement length.
  • the eccentric 30 is advantageously provided with elastic means for absorbing the mechanical stresses exerted on the display means blocked in the fixed position.
  • These resilient means are preferably formed by a recess 37 formed along the thrust surface 36 providing the latter an elasticity determined according to the needs.
  • Another aspect of the invention relates to the method of mounting a display module in a portable electronic device, such as a watch case. It will be understood by display module, an assembly including including display means and a light guide.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electromechanical Clocks (AREA)
  • Electric Clocks (AREA)
  • Telephone Set Structure (AREA)
EP04101004A 2004-03-11 2004-03-11 Mécanisme de positionnement et de blocage de moyens d'affichage dans une ouverture du cadran d'un appareil électronique portable Expired - Lifetime EP1574918B1 (fr)

Priority Applications (7)

Application Number Priority Date Filing Date Title
DE602004023814T DE602004023814D1 (de) 2004-03-11 2004-03-11 Vorrichtung zum Einbringen und zur Festsetzung einer Anzeige in einem Fenster des Zifferblatt eines elektronischen tragbaren Gerät
EP04101004A EP1574918B1 (fr) 2004-03-11 2004-03-11 Mécanisme de positionnement et de blocage de moyens d'affichage dans une ouverture du cadran d'un appareil électronique portable
TW094107038A TWI361340B (en) 2004-03-11 2005-03-08 Portable electronic apparatus and method of mounting a display module
US11/076,421 US7313054B2 (en) 2004-03-11 2005-03-10 Positioning and locking mechanism of display means in a portable electronic apparatus
JP2005068777A JP4843233B2 (ja) 2004-03-11 2005-03-11 携帯型電子装置の表示手段の位置決めロック機構
CN200510064034A CN100576113C (zh) 2004-03-11 2005-03-11 便携式电子设备中的显示装置的定位和锁定机构
HK05110483.8A HK1078659A1 (en) 2004-03-11 2005-11-21 Positioning and locking mechanism of display means in a portable electronic apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP04101004A EP1574918B1 (fr) 2004-03-11 2004-03-11 Mécanisme de positionnement et de blocage de moyens d'affichage dans une ouverture du cadran d'un appareil électronique portable

Publications (2)

Publication Number Publication Date
EP1574918A1 EP1574918A1 (fr) 2005-09-14
EP1574918B1 true EP1574918B1 (fr) 2009-10-28

Family

ID=34814395

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04101004A Expired - Lifetime EP1574918B1 (fr) 2004-03-11 2004-03-11 Mécanisme de positionnement et de blocage de moyens d'affichage dans une ouverture du cadran d'un appareil électronique portable

Country Status (7)

Country Link
US (1) US7313054B2 (ja)
EP (1) EP1574918B1 (ja)
JP (1) JP4843233B2 (ja)
CN (1) CN100576113C (ja)
DE (1) DE602004023814D1 (ja)
HK (1) HK1078659A1 (ja)
TW (1) TWI361340B (ja)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH705600B1 (de) * 2011-10-07 2022-11-30 Richemont Int Sa Vorrichtung mit Bildleiter für Uhren.
CN104854520B (zh) * 2012-12-17 2018-01-02 斯沃奇集团研究和开发有限公司 柔性便携式电子装置
EP3779612A1 (fr) * 2019-08-16 2021-02-17 The Swatch Group Research and Development Ltd Procédé et système de diffusion d'un message à un porteur d'une montre
EP3832396B1 (fr) * 2019-12-03 2024-01-24 ETA SA Manufacture Horlogère Suisse Dispositif de fixation d'un element d'affichage ou d'habillage d'horlogerie

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3861941A (en) * 1971-07-02 1975-01-21 Bruce W Brockett Pressure-sensitive record sheet
JPS5062575U (ja) * 1973-10-06 1975-06-07
US4012117A (en) * 1974-07-29 1977-03-15 Rca Corporation Liquid crystal module
US3983689A (en) * 1975-03-31 1976-10-05 Hughes Aircraft Company Electronic watch construction
CH610705B (de) * 1975-09-12 Ebauchesfabrik Eta Ag Vorrichtung zum befestigen eines zifferblattes an einer werkplatte einer uhr.
US4044542A (en) * 1976-06-01 1977-08-30 Hughes Aircraft Company Watch module construction
CH609825B (fr) * 1976-08-09 Ebauches Bettlach Sa Mouvement de montre dont le bati comprend une plaque de maintien.
JPS6029748Y2 (ja) * 1977-07-13 1985-09-07 セイコーエプソン株式会社 時計用表示装置
CH682118B5 (fr) * 1991-12-02 1994-01-31 Walter Schlup Boîte de montre comportant un fermoir pour bracelet.
JPH06180376A (ja) * 1992-12-11 1994-06-28 Casio Comput Co Ltd 表示パネルを備えた指針式電子時計
JP2001289966A (ja) * 2000-04-05 2001-10-19 Seiko Instruments Inc アナログ時計
JP2003072055A (ja) * 2001-09-05 2003-03-12 Olympus Optical Co Ltd インクジェットプリンタ

Also Published As

Publication number Publication date
EP1574918A1 (fr) 2005-09-14
HK1078659A1 (en) 2006-03-17
JP4843233B2 (ja) 2011-12-21
DE602004023814D1 (de) 2009-12-10
CN100576113C (zh) 2009-12-30
CN1667529A (zh) 2005-09-14
US20050201210A1 (en) 2005-09-15
JP2005257689A (ja) 2005-09-22
US7313054B2 (en) 2007-12-25
TW200535578A (en) 2005-11-01
TWI361340B (en) 2012-04-01

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