US3659383A - Wrist watch strap connections - Google Patents

Wrist watch strap connections Download PDF

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Publication number
US3659383A
US3659383A US134257A US3659383DA US3659383A US 3659383 A US3659383 A US 3659383A US 134257 A US134257 A US 134257A US 3659383D A US3659383D A US 3659383DA US 3659383 A US3659383 A US 3659383A
Authority
US
United States
Prior art keywords
side wall
outer ring
groove
ring
case
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
US134257A
Other languages
English (en)
Inventor
Gerard Cachelin
Etienne Jeannottat
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.)
Tissot SA
Original Assignee
Fabrique dHorlogerie CHS Tissot et Fils SA
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 Fabrique dHorlogerie CHS Tissot et Fils SA filed Critical Fabrique dHorlogerie CHS Tissot et Fils SA
Application granted granted Critical
Publication of US3659383A publication Critical patent/US3659383A/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
    • G04B37/14—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

  • ABSTRACT A wristwatch case has a side wall over which an outer ring is removably engaged and held by two spring members each having a middle part forming a bracelet loop and curved extremities engaging in facing grooves of the case and wall.
  • An outer terminal part of each extremity normally engages in the groove of the ring but, for fitting or removal of the ring, can be compressed into a groove of the case by an inclined surface on the ring.
  • This invention relates to Wristwatches in which a watch case comprises a side wall and a removable outer ring engaged about the side wall.
  • U.S. Pat. No. 3,561,209 discloses a wristwatch comprising a case, a side wall for the case, and a removable outer ring engaged over the side wall.
  • the sidewall and ring have facing grooves in which the extremities of two oppositely facing spring elements engage to axially maintain the ring on the side wall, the middle part of the spring elements forming loops serving to secure a bracelet.
  • the extremities of the spring elements pinch the side wall, the side wall being curved and said extremities having a substantially identical curvature such that an inward radial pressure exerted on the middle part of the spring elements will apply said extremities solely within the groove of the side wall to thereby free the outer ring.
  • the invention aims to provide an improved wristwatch of a similar type to that above-mentioned, but in which removal of the outer ring is facilitated.
  • a wristwatch comprising a case, a side wallfor the case, a removable outer ring engaged over the side wall, said side wall and ring having facing grooves, and spring elements having extremities engaging in said grooves in order to axially maintain the ring on the side wall, a middle part of each element forming a loop serving to secure a bracelet, wherein said extremities each comprise an inwardly directed first part adjacent said middle part, Said first part engaging in and bearing against a wall of a groove of the side wall, and an outwardly directed part adjacent said first part, said outwardly directed part terminating with a second part normally engaging in a groove of the outer ring, said groove of the outer ring having a surface arranged such that an axial pressure exerted on the outer ring in relation to the watch case causes said surface to bear against said second parts of the elements to apply each second part solely within a groove of the side wall to thereby free the outer ring.
  • FIG. 1 is an elevational cross-sectional view through part of a wristwatch according to the invention.
  • FIG. 2 is a cross-section taken along line 11-11 of FIG. 1, but
  • the wrist watch shown comprises a case 1 with a side wall la on which a glass 2 is fixed by means of a seated ring 3.
  • the watch case houses a movement 4 and other conventional watch components.
  • cavities 5 are provided in the side wall la, one such cavity being shown in the drawings.
  • An outer ring 6 is removably fitted over the serted ring 3 andside wall 1a, an internal peripheral groove 7 in the ring 6 fitting around the cavities 5.
  • Each spring member comprises a straight middle part 8a forming a loop for the attachment of a bracelet strap and symmetrical substantially S-shape extremities.
  • Each extremity comprises an inwardly directed part 8b the inner side of which bears against a wall 5a of a cavity 5, an intermediate part which bears against the bottom of the groove 5, and a part that curves outwardly to terminate with an outer part 80 which protrudes into the groove 7.
  • the lower part of the outer ring 6 is cut away in the vicinity of the middle parts 8a so as to allow access for the ends of a bracelet.
  • the peripheral groove 7 has an inclined lower surface 7a, .whilst the lower part of the outer ring 6 has a bevelled wall 6a.
  • the outer ring 6 is thus fitted to the watch case, a watch bracelet having been fitted to the loop portions 8a and the spring members 8 with fitted bracelet having been clipped into the cavities 5, by a simple downward pressure, bevelled wall 6a compressing sections 80 of the spring member into the cavities 5 during this movement, and the sections 8c springing into engagement with the groove 7 as soon as it is in alignment with the cavities 5.
  • the tension of the bracelet tends to urge section 8c into the groove 7 to thereby increase the grip on outer ring 6.
  • the sections 80 are compressed into the cavities 5 by bearing against the inclined surface 7a the angle of which is chosen so as to ensure secure holding of the outer ring 6 onto the watch case 1 during normal wear, but to allow removal of the ring 6 when a firm, even pressure is applied thereto.
  • the spring sections remain clipped in the cavities 5 by pressure of the part 8b against wall 5a.
  • the spring sections 8 can be easily removed, when the outer ring 6 is removed, by exerting an outward pull thereupon.
  • the watch case 1 can be provided in any suitable material: fiberglass is particularly advantageous since it facilitates provision of the cavities 5.
  • the outer ring 6 can also be in any suitable material, and is advantageously in a noble metal, or plated with a noble metal, to give a pleasing outer appearance to the watch.
  • a wristwatch comprising a case, a side wall for the case, a removable outer ring engaged over the side wall, said side wall and ring having facing grooves, and spring elements having extremities engaging in said grooves in order to axially maintain the ring on the side wall, a middle part of each element forming a loop serving to secure a bracelet, wherein said extremities each comprise an inwardly directed first part adjacent said middle part, said first part engaging in and bearing against a wall of a groove of the side wall, and an outwardly directed part adjacent said first part, said outwardly directed part terminating with a second part normally engaging in a groove of the outer ring, said groove of the outer ring having a surface arranged such that an axial pressure exerted on the outer ring in relation to the watch case causes said surface to bear against said second parts of the elements to apply each second part solely within a groove of the side wall to thereby free the outer ring.
  • a wristwatch according to claim 1 in which the side wall comprises a pair of groove-like cavities for each of two spring elements, said first parts of each element bearing against facing end walls of a pair of cavities whereby each element is held in place on the watch case.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electric Clocks (AREA)
  • Adornments (AREA)
US134257A 1970-04-22 1971-04-15 Wrist watch strap connections Expired - Lifetime US3659383A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH599170A CH518586A (fr) 1970-04-22 1970-04-22 Montre-bracelet

Publications (1)

Publication Number Publication Date
US3659383A true US3659383A (en) 1972-05-02

Family

ID=4302609

Family Applications (1)

Application Number Title Priority Date Filing Date
US134257A Expired - Lifetime US3659383A (en) 1970-04-22 1971-04-15 Wrist watch strap connections

Country Status (6)

Country Link
US (1) US3659383A (ja)
JP (1) JPS518583B1 (ja)
CH (2) CH518586A (ja)
DE (1) DE2111931B2 (ja)
FR (1) FR2086236B1 (ja)
GB (1) GB1300038A (ja)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4966165A (ja) * 1972-10-26 1974-06-26
JPS5471788U (ja) * 1977-10-31 1979-05-22
CH617563B (fr) * 1978-06-02 Rado Montres Sa Boite de montre etanche a verre polygonal.
JPS588320U (ja) * 1981-07-09 1983-01-19 シチズン時計株式会社 時計ケ−ス構造
DE3246100A1 (de) * 1982-12-13 1984-06-14 Gebrüder Schmidt GmbH & Co KG Metallwarenfabrik, 6580 Idar-Oberstein Einrastvorrichtung zur befestigung von glasrahmen und rueckwanddeckeln an uhrgehaeusen aus metall oder kunststoffspritzguss
DE3501124A1 (de) * 1984-01-23 1985-07-25 Mondaine Watch Ltd., Zürich Wasserdichtes gehaeuse fuer eine kleinuhr
GB2200032B (en) * 1987-05-28 1990-11-14 Timos Ltd Wrist watches
GB2309881A (en) * 1996-02-08 1997-08-13 Chung Nam Watch Co Limited Connector for a watch and strap

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH61739A (fr) * 1912-10-14 1913-10-16 Jeanneret Brehm & Cie Usine Du Montre à double tour d'heures
FR827064A (fr) * 1936-11-12 1938-04-15 Movado Montres Compteur de temps
US3165884A (en) * 1962-11-14 1965-01-19 Bulova Watch Co Inc Watch band connector
US3431722A (en) * 1967-07-27 1969-03-11 Sindace Sa Timepiece case
US3548588A (en) * 1967-08-16 1970-12-22 Piquerez Sa Ervin Timepiece with turning bezels
US3561209A (en) * 1967-10-04 1971-02-09 Tissot Horlogerie Wristwatch wristlet mounting means
US3583151A (en) * 1968-08-09 1971-06-08 Tissot Horlogerie Wristwatch with removable middle-bezel

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH61739A (fr) * 1912-10-14 1913-10-16 Jeanneret Brehm & Cie Usine Du Montre à double tour d'heures
FR827064A (fr) * 1936-11-12 1938-04-15 Movado Montres Compteur de temps
US3165884A (en) * 1962-11-14 1965-01-19 Bulova Watch Co Inc Watch band connector
US3431722A (en) * 1967-07-27 1969-03-11 Sindace Sa Timepiece case
US3548588A (en) * 1967-08-16 1970-12-22 Piquerez Sa Ervin Timepiece with turning bezels
US3561209A (en) * 1967-10-04 1971-02-09 Tissot Horlogerie Wristwatch wristlet mounting means
US3583151A (en) * 1968-08-09 1971-06-08 Tissot Horlogerie Wristwatch with removable middle-bezel

Also Published As

Publication number Publication date
GB1300038A (en) 1972-12-20
CH599170A4 (ja) 1971-07-15
FR2086236A1 (ja) 1971-12-31
CH518586A (fr) 1971-07-15
DE2111931B2 (de) 1972-06-08
FR2086236B1 (ja) 1974-02-15
JPS518583B1 (ja) 1976-03-18
DE2111931A1 (de) 1971-11-11

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