EP1577717B1 - Armbanduhr - Google Patents

Armbanduhr Download PDF

Info

Publication number
EP1577717B1
EP1577717B1 EP03780768.2A EP03780768A EP1577717B1 EP 1577717 B1 EP1577717 B1 EP 1577717B1 EP 03780768 A EP03780768 A EP 03780768A EP 1577717 B1 EP1577717 B1 EP 1577717B1
Authority
EP
European Patent Office
Prior art keywords
leg portions
wristwatch
case body
back cover
projection pieces
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
EP03780768.2A
Other languages
English (en)
French (fr)
Other versions
EP1577717A4 (de
EP1577717A1 (de
Inventor
Susumu Shibata
Osamu Takahashi
Hiroshi Matsumura
Yoichi Yaguchi
Michel Ratajski
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.)
Namiki Precision Jewel Co Ltd
Original Assignee
Namiki Precision Jewel Co Ltd
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 Namiki Precision Jewel Co Ltd filed Critical Namiki Precision Jewel Co Ltd
Publication of EP1577717A1 publication Critical patent/EP1577717A1/de
Publication of EP1577717A4 publication Critical patent/EP1577717A4/de
Application granted granted Critical
Publication of EP1577717B1 publication Critical patent/EP1577717B1/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
    • G04B37/00—Cases
    • G04B37/14—Suspending devices, supports or stands for time-pieces insofar as they form part of the case
    • G04B37/1486—Arrangements for fixing to a bracelet

Definitions

  • This Invention relates to an improvement of a wristwatch with a super hard wristwatch case which comprises a case body of sintered carbides and ceramics having left/right pairs of leg portions provided at opposite positions thereof, and in which a wristwatch band is supported between the leg portions by means of spring rods.
  • EP 370 356 A1 discloses a wristwatch having a wristwatch case, a wristwatch band and a pin for attaching the wristwatch band on the wristwatch case between two projecting leg portions.
  • the leg portions have through holes for inserting the pin.
  • FR 2,743,641 A1 discloses a wristwatch band and a spring pin for attaching the wristwatch band on a buckle between two projecting leg portions.
  • the leg portions have through holes in which bearing parts, each with a blind hole, are inserted.
  • the spring pin is inserted into the blind hole for fixing the wristwatch band.
  • FR 2 509 487 A is related to a wristwatch case composed of an outer case made of centered hard alloy and an inner case made of stainless steel having a pair of legs at opposite sides for connecting watch bands.
  • the legs outwardly project from a notch formed on the outer case.
  • the watch band has a connecting member at one end thereof. The watch band is connected to the projected legs by engaging a bar with holds formed in the legs and in the connecting member.
  • a wristwatch case in which a case body is formed of a hard material that is poor in machinability, such as sintered carbide and ceramics. Also, in a super hard wristwatch case, fixing holes for spring rods are formed in inner wall faces of leg portions by applying an electric discharge machining technique directly to the inner wall faces of the leg portions.
  • the case body has notches formed in the inner wall faces of the leg portions thereof.
  • the back cover is fixed to the back of the case body with the projection pieces thereof being fitted and fixed in the notches of the leg portions so as to be flush with the inner wall faces of the leg portions.
  • an illustrated embodiment includes a case body 1, a back cover 2 and spring rods 3 (only one spring rod 3 is shown in Fig. 1 ), and is assembled as a wristwatch case in which a wristwatch band 4 is adapted to be supported by the spring rods 3.
  • the case body 1 is formed of a super hard material such as sintered carbide and ceramics.
  • the back cover 2 is formed of shock-resistant metal such as stainless steel.
  • the case body 1 comprises an outer frame 10 serving as a body, and is provided with left/right pairs of leg portions 11 a, 11 b, 12a, 12b at opposite positions of the outer frame 10.
  • Installation space 13 (generally referred to as "fitting part fork part", viz., "Kanmata” in wristwatch fabrication terminology in Japanese) for the spring rods 3 for supporting the wristwatch band 4 between the leg portions 11a, 11 b, 12a, 12b therethrough are provided between the leg portions 11 a, 11 b, 12a, 12b.
  • the back cover 2 is formed into a flat plate having a contour that allows the back cover 2 to be fitted in the back of the outer frame 10 including the leg portions 11 a, 11 b, 12a, 12b.
  • Each of the spring rods 3 comprises a sleeve 3c, a coil spring (not shown) housed within the sleeve 3c, and left/right protruding pins 3a, 3b elastically supported to the coil spring.
  • shock-resistant metallic members are provided in inner wall faces of the leg portions 11 a, 11 b, 12a, 12b.
  • the concrete examples include a first embodiment of the present invention in which the back cover 2 shown in Figs. 1 to 3 is employed.
  • left/right pairs of projection pieces 20a, 20b, 21 a, 21 b are provided at the back cover 2.
  • the projection pieces 20a, 20b, 21 a, 21 b are formed integrally with the back cover 2, rise up from a surface of the back cover which faces the case body 1, and serve as the metallic members having the same impact resistance as the back cover 2 does.
  • the projection pieces 20a, 20b, 21 a, 21 b are formed with fixing holes 22a, 22b, 23a, 23b for the spring rods in regions thereof that are adjacent tips of the projection pieces 20a, 20b, 21a, 21b.
  • the case body 1 is formed in inner wall faces of the leg portions 11 a, 11 b, 12a, 12b thereof with notches 14 (only one notch 14 is shown in Fig. 1 ) in which the projection pieces 20a, 20b, 21 a, 21b are to be fitted.
  • the notches 14 are formed so as to have contours and depths which allow the projection pieces 20a, 20b, 21 a, 21 b to be fitted in the notches 14 so as to be flush with the inner wall faces of the leg portions 11 a, 11 b, 12a, 12b.
  • the four notches 14 can be easily formed at the same time by causing the leg portions to be subjected to electric discharge machining from the same direction.
  • Necessary components which include a movement, a dial, an armor glass, etc. are assembled to the case body 1 constructed as discussed above.
  • the back cover 2 is then applied to the back of the case body 1 and assembled to the case body 1 by screwing four pins 5a, 5b, 5c (only three pins are shown in Fig. 1 ) into through-holes 24a, 24b, 25a, 25b of the back cover 2 and then screwing them into the case body, whereby the super hard wristwatch case or a wristwatch is assembled.
  • the projection pieces of the back cover 2 are fitted and fixed in the notches 14 of the leg portions (only one leg portion 11 a is shown in Fig. 2 ) and flush with the inner wall faces of the leg portions so as not to be exposed to the exterior, so that the wristwatch case can be assembled so as to have a form usual in an ornamental design.
  • the projecting pins of the spring rods 3 are fitted in the fixing holes of corresponding projection pieces, whereby the spring rods 3 are bridged and engaged between the corresponding projection pieces (only thee projecting pin 3a and the fixing hole 22a of the projection piece 20a are shown in Fig. 3 ).
  • the projection pieces are formed integrally with the back cover 2 as the metallic members which are formed of shock-resistant metal such as stainless steel as discussed above, so that any impact applied to the projection pieces on installation and removal of the spring rods will not cause any fractures, cracks and/or breaks to be produced in the projection pieces.
  • the super hard wristwatch case according to the present invention is provided with the shock-resistant metallic back cover having the left/right pairs of the projection pieces provided on the surface thereof which faces the case body, the left/ right pairs of the projection pieces being located so as to be opposed to the inner wall faces of the leg portions of the case body, the projection pieces being formed with the fixing holes for the spring rods in the regions of the projection pieces which are adjacent the tips of the projection portion, and the projection pieces of the back cover being fitted and fixed in the inner wall faces of the leg portions.
  • the spring rods for supporting the wristwatch band are bridged and engaged between the projection pieces.
  • the simple modification to the structure of the wristwatch case in which the spring rods for supporting the wristwatch band are bridged and engaged between the projection pieces, can prevent any fractures, cracks and/or breaks from being produced in the leg portions of the case body on the installation and removal of the spring rods from the case.
  • the back cover is assembled and fixed to the case body with the projection pieces thereof being fitted in the notches of the leg portions so as to be flush with the inner wall faces of the leg portions, so that the wristwatch case can be assembled so as to have a form usual in an ornamental design.
  • left/right pairs of leg portions is given to mean both the left/right pairs of the leg portions and left/right pairs of portions corresponding in shape to the left/right leg portions.
  • left/right pairs of leg portions is given to mean both the left/right pairs of the leg portions and left/right pairs of portions corresponding in shape to the left/right leg portions.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electric Clocks (AREA)
  • Purses, Travelling Bags, Baskets, Or Suitcases (AREA)

Claims (2)

  1. Eine Armbanduhr mit einem superharten Armbanduhrengehäuse mit:
    - einem Gehäusekörper (1) aus gesintertem Carbid und Keramik mit linken/rechten Paaren von Beinbereichen (11 a, 11 b, 12a, 12b) oder linken/rechten Bereichspaaren, die hinsichtlich der Form den beiden Beinbereichen (11 a, 11 b, 12a, 12b) entsprechen, die an gegenüberliegenden Stellen des Gehäusekörpers (1) vorgesehen sind;
    - einem Rückendeckel (2), der an einer Rückseite des Gehäusekörpers (1) befestigt ist;
    - einem Armbanduhrenband (4), das separat von dem Gehäusekörper (1) und dem Rückendeckel (2) gebildet ist;
    - Federstäben (3) zum Abstützen des Armbanduhrenbandes (4) zwischen den Beinbereichen (11 a, 11 b, 12a, 12b);
    - Einbauräumen (13) zwischen den Beinbereichen (11a, 11b, 12a, 12b) des Gehäusekörpers (1) zum Abstützen eines Endes des Armbanduhrenbandes (4),
    dadurch gekennzeichnet, dass
    der Rückendeckel (2) aus einem stoßfesten Metall gebildet ist und linke/rechte Paare von Vorsprungstücken (20a, 20b, 21 a, 21 b) aufweist, die einstückig mit dem Rückendeckel (2) ausgebildet sind,
    die Vorsprungstücke (20a, 20b, 21 a, 21 b) sich von dem Rückendeckel (2) in einer zu der Oberfläche des Rückendeckels (2) senkrechten Richtung erstrecken, sodass sie inneren Wandflächen der Beinbereiche (11a, 11 b, 12a, 12b) des Gehäusekörpers (1) gegenüberliegen,
    die Vorsprungstücke (20a, 20b, 21 a, 21 b) mit Befestigungsöffnungen (22a, 22b, 23a, 23b) für die Federstäbe (3) in Bereichen davon ausgebildet sind, die benachbarte Spitzen der Vorsprungstücke (20a, 20b, 21 a, 21 b) sind, und
    dass die Vorsprungstücke (20a, 20b, 21 a, 21 b) des Rückendeckels (2) in den inneren Wandflächen der Beinbereiche (11a, 11b, 12a, 12b) eingepasst und festgelegt sind, und
    dass das Armbanduhrenband (4) durch Federstäbe (3) festgelegt ist, die zwischen den Befestigungsöffnungen (22a, 22b, 23a, 23b) der Vorsprungstücke (20a, 20b, 21a, 21b) überbrückend und in Eingriff befindlich sind, ohne die Notwendigkeit, weitere Befestigungsöffnungen für den Federstab (3) in den Beinbereichen (11 a, 11 b, 12a, 12b) bereitzustellen, um die Federstäbe (3) festzulegen.
  2. Die Armbanduhr nach Anspruch 1, dadurch gekennzeichnet, dass der Gehäusekörper (1) Ausnehmungen (14) aufweist, die in den inneren Wandflächen der Beinbereiche (11 a, 11 b, 12a, 12b) davon ausgebildet sind, und der Rückendeckel (2) an der Rückseite des Gehäusekörpers (1) festgelegt ist, mit den Vorsprungstücken (20a, 20b, 21 a, 21 b) davon eingepasst und fixiert in den Ausnehmungen (14) der Beinbereiche (11a, 11b, 12a, 12b), sodass sie mit den inneren Wandflächen der Beinbereiche (11 a, 11 b, 12a, 12b) bündig sind.
EP03780768.2A 2002-12-17 2003-12-15 Armbanduhr Expired - Lifetime EP1577717B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2002365115A JP4348599B2 (ja) 2002-12-17 2002-12-17 超硬腕時計ケース
JP2002365115 2002-12-17
PCT/JP2003/016040 WO2004055603A1 (ja) 2002-12-17 2003-12-15 超硬腕時計ケース

Publications (3)

Publication Number Publication Date
EP1577717A1 EP1577717A1 (de) 2005-09-21
EP1577717A4 EP1577717A4 (de) 2008-03-05
EP1577717B1 true EP1577717B1 (de) 2016-02-03

Family

ID=32588257

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03780768.2A Expired - Lifetime EP1577717B1 (de) 2002-12-17 2003-12-15 Armbanduhr

Country Status (6)

Country Link
EP (1) EP1577717B1 (de)
JP (1) JP4348599B2 (de)
KR (1) KR100935571B1 (de)
CN (1) CN100504666C (de)
HK (1) HK1086354A1 (de)
WO (1) WO2004055603A1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10667584B2 (en) 2016-09-28 2020-06-02 Huawei Technologies Co., Ltd. Wearable device and main body of wearable device

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101821682B (zh) * 2007-07-31 2012-01-18 并木精密宝石株式会社 表壳
JP5967451B2 (ja) * 2014-04-28 2016-08-10 カシオ計算機株式会社 バンド取付構造および腕時計
CN110764389A (zh) * 2019-11-11 2020-02-07 漳州市万思刻电子有限公司 一种具有缓冲防摔功能的新型腕表
WO2023156201A1 (fr) * 2022-02-15 2023-08-24 Pierhor-Gasser Sa Pierre d'horlogerie et procede de fabrication d'une telle pierre

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0197717U (de) * 1987-12-22 1989-06-29
JPH01180692U (de) * 1988-05-31 1989-12-26

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5363872U (de) * 1976-10-27 1978-05-30
JPS5363872A (en) * 1976-11-18 1978-06-07 Matsushita Electric Ind Co Ltd Oxide film forming method to crystals
JPS588320U (ja) * 1981-07-09 1983-01-19 シチズン時計株式会社 時計ケ−ス構造
CH674692B5 (de) * 1988-11-23 1991-01-15 Tissot Sa
JP2851404B2 (ja) * 1990-09-14 1999-01-27 シチズン時計株式会社 時計ケース及びその製造方法
DE59502834D1 (de) * 1994-04-22 1998-08-20 Vacuum Chronometer Corp Uhrengehäuse
FR2743641B1 (fr) * 1996-01-17 1998-02-27 Eterna Sa Fabrique D Horlogeri Montre-bracelet a cornes munie d'un dispositif de fixation d'un bracelet aux cornes et bracelet pour une telle montre
EP1070997A1 (de) * 1999-07-22 2001-01-24 The Swatch Group Management Services AG Umkehrbare Armbanduhr

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0197717U (de) * 1987-12-22 1989-06-29
JPH01180692U (de) * 1988-05-31 1989-12-26

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10667584B2 (en) 2016-09-28 2020-06-02 Huawei Technologies Co., Ltd. Wearable device and main body of wearable device

Also Published As

Publication number Publication date
CN1726437A (zh) 2006-01-25
KR20050086912A (ko) 2005-08-30
EP1577717A4 (de) 2008-03-05
HK1086354A1 (en) 2006-09-15
KR100935571B1 (ko) 2010-01-07
JP2004198183A (ja) 2004-07-15
EP1577717A1 (de) 2005-09-21
WO2004055603A1 (ja) 2004-07-01
JP4348599B2 (ja) 2009-10-21
CN100504666C (zh) 2009-06-24

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