US3910031A - Wrist-watch casing - Google Patents

Wrist-watch casing Download PDF

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Publication number
US3910031A
US3910031A US498366A US49836674A US3910031A US 3910031 A US3910031 A US 3910031A US 498366 A US498366 A US 498366A US 49836674 A US49836674 A US 49836674A US 3910031 A US3910031 A US 3910031A
Authority
US
United States
Prior art keywords
casing
bore
bezel
members
throughgoing
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
US498366A
Other languages
English (en)
Inventor
Teruho Keida
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.)
Citizen Watch Co Ltd
Original Assignee
Citizen Watch 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 Citizen Watch Co Ltd filed Critical Citizen Watch Co Ltd
Application granted granted Critical
Publication of US3910031A publication Critical patent/US3910031A/en
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
    • G04B37/08—Hermetic sealing of openings, joints, passages or slits
    • G04B37/084—Complete encasings for wrist or pocket watches without means for hermetic sealing of winding stem or crown
    • G04B37/086—Complete encasings for wrist or pocket watches without means for hermetic sealing of winding stem or crown for shaped watches
    • 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
    • G04B37/0008—Cases for pocket watches and wrist watches

Definitions

  • the present invention relates to a wrist-watch casing assembled by means of screws which connect a casing back to a central casing body or a bezel to a casing body.
  • An object of this invention is to provide a wrist watch casing which can have a threaded bore in a bezel or casing body, even if it is made of a material such as stainless steel, cemented carbide and ceramics, characterized by hard machinability.
  • FIG. 1 is a cross-sectional view of a blind bore and a metal coil to be inserted into said bore, according to an embodiment of this invention
  • FIG. 2 is a cross-sectional view of a threaded bore formed by means of this invention, and a screw cooperating with this bore;
  • FIG. 3 is a cross sectional view of a screw threaded connection according to this invention.
  • FIG. 4 is a front view of a wrist-watch casing embodying the present invention.
  • FIG. 5 is a cross section of the watch casing taken along the line AA of FIG- 4.
  • the wrist watch casing has'a bezel 2 with threaded bores l and a one-piece type casing'body 3 having through'going bores 6 through which-screws 5 arethreaded to; the bores 1 so that the bezel 2 is tightly connected to the casing body 3 to maintain a waterproof seal.
  • a glass plate 7 is rigidly supported through a packing ring 8 to the front surface of the casing body 3 by pressure from the bezel 2 alongall'of the edges of the-glass plate 7.
  • the wrist-watch casing is separated to two pieces, a center casing body 9 and an inner body 12.
  • the threaded bores l are formed in the center casing body 9, into which are inserted screws 5 each passing through a bore 11 formed at the peripheral portionof a casing back 10.
  • the inner body 12 is supported tightly to a bezel portion integrally formed with the center casing body 9 by the compression by casing back 10 of body 12 via a packing ring 13.
  • a casing back 10 is integrally formed with an inner body 12 and separates from an attaching ring 14.
  • attaching ring 14 has through bores 15 through-going which screws 5 are passed to be threaded into threaded bores '6 formed in a center casing body 9, so that the casing back 10 is fixed to the center casing body 9 together with a glass plate 7 and a packing ring 8.
  • FIG. 8 depicts an embodiment of the wrist-watch cas- I ing of a screw-back type.
  • a casing back 10 is threaded to a large threaded bore 6 formed in the back portion of a center casing body 9.
  • a screw 5 is integrally formed with the casing back 10, and the threaded bore 6 is produced by the coil device men-
  • FIG. 6 is a cross section similar to FIG. 5 of another embodiment of this invention in which the watch casing is sectioned along a line similar to line AA in FIG. 4;
  • FIG. 7 is a cross section similar to FIG. 5 of a furtherembodiment of this invention in which the watch casing is sectioned along a line similar to line AA in FIG. 4;
  • FIG. 8 is a cross section similar to FIG. 5 of still ,another embodiment of this invention in which the watch casing is sectioned along a line similar to line AA in FIG. 4.
  • a blind bore 1 is formed in a bezel 2 (shown in FIGS. 4 and'5) or a casing body 3 (shown in FIGS. 6 and 7).
  • the bezel 2 or casing body 3 is made of stainless steel and the bore l-has a circular inner wall to be smooth.
  • a stainless steel coil tightly wound ie with successive turns in axial contact
  • fusing alloy for example, nickel phosphide.
  • The'plated layer may have a thickness of approximately 10 microns.
  • Said plated coil 4 is tightly inserted into said bore 1 and heated at a temperature of about l, C in a nonoxiding' furnace so that'the alloy is fused'in the bore 1 thereby to bond the coil, as a threaded portion, in the bore 1.
  • the diameter of the coil 4 may be slightly less tioned above.
  • the blind bore 1 may be coated with nickel before the insertion of the coil 4 in the case in which the blind bore 1 is formed by means of erosion, electro-beam, su-
  • a wrist-watch casing comprising: a casing-member, a bezel member and a back mem ber interconnected to'define a watch-casing strucsaid members-is made of stainless steel and said coil is composed of stainless steel coated with nickel phosphide fused to the wall of said bore.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electric Clocks (AREA)
  • Casings For Electric Apparatus (AREA)
US498366A 1973-08-21 1974-08-19 Wrist-watch casing Expired - Lifetime US3910031A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP48093631A JPS5043970A (es) 1973-08-21 1973-08-21

Publications (1)

Publication Number Publication Date
US3910031A true US3910031A (en) 1975-10-07

Family

ID=14087666

Family Applications (1)

Application Number Title Priority Date Filing Date
US498366A Expired - Lifetime US3910031A (en) 1973-08-21 1974-08-19 Wrist-watch casing

Country Status (5)

Country Link
US (1) US3910031A (es)
JP (1) JPS5043970A (es)
DE (1) DE2439886C3 (es)
GB (1) GB1462214A (es)
HK (1) HK54281A (es)

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4075828A (en) * 1973-11-09 1978-02-28 Century Time Limited Four-sided water-resistant watch-case
US4281406A (en) * 1978-11-22 1981-07-28 Citizen Watch Co., Ltd. Water-proof case for digital electronic timepieces
US4390288A (en) * 1981-03-30 1983-06-28 Cesar Arnoux, S.A. Watch casing
US4391533A (en) * 1981-02-17 1983-07-05 Citizen Watch Co. Ltd. Back cover fixing structure for wristwatch
US4544284A (en) * 1983-05-25 1985-10-01 Omega Sa Leakproof watch case
US4712955A (en) * 1985-05-14 1987-12-15 Rexnord Inc. Expandable fastener assembly
US5943302A (en) * 1996-11-13 1999-08-24 Bonneville Watches Modular wristwatch assembly and case assembly for same
US20040001392A1 (en) * 2002-06-27 2004-01-01 Chung Yi Shing Flash memory-disk watch
US20080025157A1 (en) * 2006-07-26 2008-01-31 Haruki Hiranuma Timepiece
US20080181746A1 (en) * 2005-07-21 2008-07-31 Pama Reiter Stefan Fastener for anchoring in solid bases
US20080267017A1 (en) * 2007-04-25 2008-10-30 Fuwausa Michelle J Novel watchcase assembly
CN102023561A (zh) * 2010-12-22 2011-04-20 鸿富锦精密工业（深圳）有限公司 具有防水功能的腕带式电子装置
US20110259753A1 (en) * 2010-04-23 2011-10-27 Omega Sa Ceramic element inlaid with at least one metallic decoration
CN104317181A (zh) * 2014-08-26 2015-01-28 上海稻房投资有限公司 一种陶瓷背板防水手表

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3039756A1 (de) * 1980-10-22 1982-05-27 Bifora-Uhren GmbH, 7070 Schwäbisch Gmünd Uhrgehaeuse
WO1994008482A2 (en) * 1992-10-05 1994-04-28 Aktsionernoe Obschestvo Pervy Wrist watch casing
USD793883S1 (en) * 2016-05-31 2017-08-08 Citizen Watch Co., Ltd. Wrist watch

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1802080A (en) * 1929-03-22 1931-04-21 Jandoc Antonio Waterproof watchcase
US3272250A (en) * 1963-12-13 1966-09-13 Green William P Self-locking nut
US3640065A (en) * 1969-02-17 1972-02-08 Schlup & Cie Sa Watertight watchcase for wristwatches
US3729924A (en) * 1971-06-02 1973-05-01 Daini Keikosha Kk Watertight watch case and watch

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1802080A (en) * 1929-03-22 1931-04-21 Jandoc Antonio Waterproof watchcase
US3272250A (en) * 1963-12-13 1966-09-13 Green William P Self-locking nut
US3640065A (en) * 1969-02-17 1972-02-08 Schlup & Cie Sa Watertight watchcase for wristwatches
US3729924A (en) * 1971-06-02 1973-05-01 Daini Keikosha Kk Watertight watch case and watch

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4075828A (en) * 1973-11-09 1978-02-28 Century Time Limited Four-sided water-resistant watch-case
US4281406A (en) * 1978-11-22 1981-07-28 Citizen Watch Co., Ltd. Water-proof case for digital electronic timepieces
US4391533A (en) * 1981-02-17 1983-07-05 Citizen Watch Co. Ltd. Back cover fixing structure for wristwatch
US4390288A (en) * 1981-03-30 1983-06-28 Cesar Arnoux, S.A. Watch casing
US4544284A (en) * 1983-05-25 1985-10-01 Omega Sa Leakproof watch case
US4712955A (en) * 1985-05-14 1987-12-15 Rexnord Inc. Expandable fastener assembly
US5943302A (en) * 1996-11-13 1999-08-24 Bonneville Watches Modular wristwatch assembly and case assembly for same
US20040001392A1 (en) * 2002-06-27 2004-01-01 Chung Yi Shing Flash memory-disk watch
US20080181746A1 (en) * 2005-07-21 2008-07-31 Pama Reiter Stefan Fastener for anchoring in solid bases
US20080025157A1 (en) * 2006-07-26 2008-01-31 Haruki Hiranuma Timepiece
US7404668B2 (en) * 2006-07-26 2008-07-29 Seiko Instruments Inc. Timepiece
CN101114157B (zh) * 2006-07-26 2010-10-13 精工电子有限公司 时计
US20080267017A1 (en) * 2007-04-25 2008-10-30 Fuwausa Michelle J Novel watchcase assembly
US20110259753A1 (en) * 2010-04-23 2011-10-27 Omega Sa Ceramic element inlaid with at least one metallic decoration
US9453287B2 (en) * 2010-04-23 2016-09-27 Omega Sa Ceramic element inlaid with at least one metallic decoration
CN102023561A (zh) * 2010-12-22 2011-04-20 鸿富锦精密工业（深圳）有限公司 具有防水功能的腕带式电子装置
CN102023561B (zh) * 2010-12-22 2013-07-03 鸿富锦精密工业（深圳）有限公司 具有防水功能的腕带式电子装置
CN104317181A (zh) * 2014-08-26 2015-01-28 上海稻房投资有限公司 一种陶瓷背板防水手表

Also Published As

Publication number Publication date
DE2439886C3 (de) 1979-05-23
DE2439886B2 (de) 1978-10-05
GB1462214A (en) 1977-01-19
HK54281A (en) 1981-11-13
DE2439886A1 (de) 1975-03-06
JPS5043970A (es) 1975-04-21

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