US3479771A - Watchcase - Google Patents

Watchcase Download PDF

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Publication number
US3479771A
US3479771A US675179A US3479771DA US3479771A US 3479771 A US3479771 A US 3479771A US 675179 A US675179 A US 675179A US 3479771D A US3479771D A US 3479771DA US 3479771 A US3479771 A US 3479771A
Authority
US
United States
Prior art keywords
annular
shoulder
rim
bezel
watch
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
US675179A
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English (en)
Inventor
Jean Steimann
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Application granted granted Critical
Publication of US3479771A publication Critical patent/US3479771A/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
    • 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
    • G04B37/04—Mounting the clockwork in the case; Shock absorbing mountings
    • G04B37/05—Fixed mountings for pocket or wrist 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
    • G04B37/08—Hermetic sealing of openings, joints, passages or slits

Definitions

  • a watchcase for a waterproof watch has an annular portion which supports the movement and has an upstanding inner rim which positions the dial and a shoulder with a sealing ring.
  • the watch crystal has an edge portion which seats on the sealing ring with an inner shoulder engaging the top of the upstanding inner rim and an outer shoulder engaged by a bezel.
  • This invention relates to watchcases.
  • Watertight watchcases comprising a body made at least partially of plastic material in which the glass is inserted, a bezel surrounding said body and having an internal projection the shape of a truncated cone acting upon that part of the casing body of plastic material surrounding the rim of the glass, and a base, resting at least indirectly upon the casing body in order to exert upon the bezel an axial traction by means of which part of the casing body is elastically deformed and thus closely applied against the glass to ensure the tightness of the assembly.
  • the main aspect of the invention comprises a watchcase comprising: a hollow casing member adapted to receive the watch movement, and comprising a base portion and a cylindrical casing portion part of which remote from the base portion is of reduced cross-section to receive the bezel and which carries an internal annular support, an
  • FIGS. 1, 2, 3 are partial axial cross-sections of each of the three embodiments.
  • the case comprises a "ice base 1, connected by a truncated conical portion 2 to a cyl ndrical casing portion 3, and constituting a hollow casing member, inside which is welded a part 4 having a groove 5 in which is arranged a packing land 6 an lntermediate annular member 7 compresses said packing gland 6 and is supported upon a cylindrical peripheral extension 4 of the part 4 constituting a part of the cylindrical casing of reduced cross-section.
  • the member 7 has on its upper portion a groove 8 in which a packing gland 9 is pressed by the glass 10 axially held by the positloning of the bezel 11, which is fixed to the base, either by screws or by any other suitable fixing system.
  • the watch glass 10 is formed with a rim having front and rear annular surfaces, the rear annular surface of which rests on the packing gland 9 and the front annular surface is pressed axially by the bezel 11.
  • the watch glass rim comprises two successive cylindrical portions of which that near the glass face has the smaller diameter so as to form an outer front-facing shoulder constituting said front annular surface and an inner rear-facing shoulder constituting said rear annular surface.
  • the member 7 which may be of metal or synthetic material, has an outer wall 71 cooperating with the shaped inner wall of the bezel 11.
  • the inside cylindrical surface of the member 7 has an upper portion 12 of the same shape as the edge of the dial 13 which it surrounds, while a central internal ring on the inside surface of the member 7 acts as a support for the movement 14.
  • FIG. 2 difiers, firstly, from that of FIG. 1 in this way, that the member 7' no longer has on its upper portion a groove, but a shoulder 71 on which the packing gland 9 is arranged.
  • the member 7" is directly supported on an integral shoulder of the base and its inner wall 16 reproduces the outer shape of the dial 17, which also rests on the shoulder 15.
  • This member 7 like that represented in FIG. 2, has a shoulder 18 for the support of a packing gland 19.
  • the bezel 11, 11', 11" respectively, has an inner shaped vertical wall, of relatively easy construction.
  • the tube of the winding stem is prefabricated with the member 7, 7' respectively.
  • this tube is welded to the bezel.
  • a waterproof watch having a case with a back and an annular portion having an upstanding rim and a shoulder radially outside of and below said rim, a movement received in said case, a dial surrounded and laterally positioned by the inner surface of said rim, a compressible sealing ring on said shoulder, a crystal having a depending peripheral rim having an inner rearfacing shoulder portion seating on top of said rim of said annular portion and on a peripheral edge portion of said dial to retain said dial, and a depending outer portion extending down radially outside of eaid rim and engaging said seal ing ring to provide a seal, and a bezel retaining said crystal.
  • the peripheral edge portion of the crystal comprises two successive cylindrical portions of which that nearer the crystal face has a smaller diameter so as to form an outer front-facing shoulder engaged by said bezel and said inner rear-facing shoulder seating on said inner rim of said annular portion. portion has a radially inwardly projecting shoulder on 3.
  • said annular which said movement is supported. portion comprises an annular plastic member.
  • said watch- References Cited case comprises a back portion and a separate annular 5 UNITED STATES PATENTS member constituting said annular portion and in which a second sealing ring forms a seal between said back por- 2392787 1/1946 Vermot 58*90 tion and said annular member.
  • a watch according to claim 4 in which said back FOREIGITI PATENTS portion is formed near its periphery with a front-facing 1 218,583 12/1941 SW1 tzer1andgroove receiving said second sealing ring and a portion 219,707 2/1942 Swltzerland' of said annular member.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electric Clocks (AREA)
US675179A 1966-10-14 1967-10-13 Watchcase Expired - Lifetime US3479771A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH1489666A CH472719A (fr) 1966-10-14 1966-10-14 Boîte de montre étanche

Publications (1)

Publication Number Publication Date
US3479771A true US3479771A (en) 1969-11-25

Family

ID=4404644

Family Applications (1)

Application Number Title Priority Date Filing Date
US675179A Expired - Lifetime US3479771A (en) 1966-10-14 1967-10-13 Watchcase

Country Status (2)

Country Link
US (1) US3479771A (fr)
CH (1) CH472719A (fr)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3729924A (en) * 1971-06-02 1973-05-01 Daini Keikosha Kk Watertight watch case and watch
US3822546A (en) * 1973-10-19 1974-07-09 Seiko Instr & Electronics Waterproof watchcase
US3828549A (en) * 1972-12-18 1974-08-13 Seiko Instr & Electronics Watertight watchcase
US3841085A (en) * 1972-11-08 1974-10-15 Suwa Seikosha Kk Watertight watch case
US3849981A (en) * 1972-11-02 1974-11-26 Suwa Seikosha Kk Watertight watch case
US4110970A (en) * 1975-11-11 1978-09-05 Citizen Watch Company Limited Water-proof watch case
US4184317A (en) * 1976-12-27 1980-01-22 Citizen Watch Co., Ltd. Watch movement mounting structure
US4205523A (en) * 1975-10-08 1980-06-03 Kabushiki Kaisha Daini Seikosha Case body construction for timepieces
US4545688A (en) * 1983-01-10 1985-10-08 Asuag-Ssih Watch case having synthetic material seals between detachable parts thereof
US4548514A (en) * 1983-03-05 1985-10-22 Gebruder Junghans Gmbh Wristwatch having tubular seal and method for assembly
US4626108A (en) * 1984-06-07 1986-12-02 Gebruder Junghans Gmbh Wristwatch with seal

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1371224A (en) * 1970-11-28 1974-10-23 Suwa Seikosha Kk Water-protected watch case

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH218583A (fr) * 1940-10-26 1941-12-15 Longines Montres Comp D Boîte de montre de forme.
CH219707A (fr) * 1941-03-26 1942-02-28 Breguet Henri Boîte de montre étanche.
US2392787A (en) * 1944-07-27 1946-01-08 Hamilton Watch Co Water resistant watchcase

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH218583A (fr) * 1940-10-26 1941-12-15 Longines Montres Comp D Boîte de montre de forme.
CH219707A (fr) * 1941-03-26 1942-02-28 Breguet Henri Boîte de montre étanche.
US2392787A (en) * 1944-07-27 1946-01-08 Hamilton Watch Co Water resistant watchcase

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3729924A (en) * 1971-06-02 1973-05-01 Daini Keikosha Kk Watertight watch case and watch
US3849981A (en) * 1972-11-02 1974-11-26 Suwa Seikosha Kk Watertight watch case
US3841085A (en) * 1972-11-08 1974-10-15 Suwa Seikosha Kk Watertight watch case
US3828549A (en) * 1972-12-18 1974-08-13 Seiko Instr & Electronics Watertight watchcase
US3822546A (en) * 1973-10-19 1974-07-09 Seiko Instr & Electronics Waterproof watchcase
US4205523A (en) * 1975-10-08 1980-06-03 Kabushiki Kaisha Daini Seikosha Case body construction for timepieces
US4110970A (en) * 1975-11-11 1978-09-05 Citizen Watch Company Limited Water-proof watch case
US4184317A (en) * 1976-12-27 1980-01-22 Citizen Watch Co., Ltd. Watch movement mounting structure
US4545688A (en) * 1983-01-10 1985-10-08 Asuag-Ssih Watch case having synthetic material seals between detachable parts thereof
US4548514A (en) * 1983-03-05 1985-10-22 Gebruder Junghans Gmbh Wristwatch having tubular seal and method for assembly
US4626108A (en) * 1984-06-07 1986-12-02 Gebruder Junghans Gmbh Wristwatch with seal

Also Published As

Publication number Publication date
CH1489666A4 (fr) 1969-01-31
CH472719A (fr) 1969-06-30

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