US3469391A - Device for fixing a wristband to a watch-case - Google Patents

Device for fixing a wristband to a watch-case Download PDF

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Publication number
US3469391A
US3469391A US721013A US3469391DA US3469391A US 3469391 A US3469391 A US 3469391A US 721013 A US721013 A US 721013A US 3469391D A US3469391D A US 3469391DA US 3469391 A US3469391 A US 3469391A
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US
United States
Prior art keywords
case
watch
wristband
projection
ring
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
US721013A
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English (en)
Inventor
Raymond Thevenaz
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.)
Omega Louis Brandt and Frere SA
Original Assignee
Omega Louis Brandt and Frere 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 Omega Louis Brandt and Frere SA filed Critical Omega Louis Brandt and Frere SA
Application granted granted Critical
Publication of US3469391A publication Critical patent/US3469391A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A44—HABERDASHERY; JEWELLERY
    • A44C—PERSONAL ADORNMENTS, e.g. JEWELLERY; COINS
    • A44C5/00—Bracelets; Wrist-watch straps; Fastenings for bracelets or wrist-watch straps
    • A44C5/14—Bracelets; Wrist-watch straps; Fastenings for bracelets or wrist-watch straps characterised by the way of fastening to a wrist-watch or the like

Definitions

  • the present invention relates to a device for fixing a wristband to a watch-case.
  • the device for fixing the wristband to the watch-case includes a flexible strap consisting of a Single piece, the strap being connected with the watch so as to cover, at least partially, the front face of the watch, except the indicating surface and a part acting as a bezel for the crystal.
  • the bezel of a round shape, is maintained by a snap adjustment in the window provided in the case.
  • a round opening is cut out in the strap and allows adjusting the bezel on another portion of the case. When the bezel is in its position, the edge portion of the strap opening is pinched or gripped between the edge of the bezel and the said portion of the case, so that the strap is firmly secured to the watch.
  • the strap covers the front face of the watch, so as to conceal the actual size of the watch when the latter is fastened to the wrist of the user.
  • This solution is not satisfactory, since the strap must move apart from the wrist to arrive at the level of the front face of the watch.
  • no guiding means are provided for preventing the wristband from turning with respect to the watch-case when it is in its position.
  • the invention aims at overcoming these drawbacks and relates to a device for fixing a wristband to a watch-case, in which the wristband, made of a single piece, has a hole by which it is engaged on a projection of the watchcase, a removable fixing member, bearing on the watchcase, axially pressing the wristband portion surrounding the said hole against a portion of the watch-case, this device being characterized in that the said projection is situated on the rear face of the watch-case and in that the watch-case presents guiding means preventing the wristband from turning with respect to the watch-case when it is in its position.
  • FIG. 1 is a bottom view of the first embodiment.
  • FIGS. 2 and 3 are sectional views along the lines II H and III-TH of FIG. 1, respectively.
  • FIGS. 4, 5 and 6 illustrate three modified embodiments, at an enlarged scale.
  • FIG. 7 is a partial sectional view of the second embodiment, at an enlarged scale.
  • FIG. 8 is a partial sectional view of the third embodiment, at an enlarged scale.
  • FIGS. 1 to 3 there is shown a so-called monocoque watch-case comprising a back 1 and a case-band 2, made of a single piece, and a crystal 3.
  • the back 1 has a projection 4 of a cylindrical shape, the axis of which coincides with that of the watch movement.
  • the wristband 5 has a circular hole 6 by which it is engaged on the projection 4 of the back 1.
  • a removable fixing member consisting here of a ring 7 fitted with dry friction on the projection 4, axially presses the wristband portion which surrounds the hole 6 against the combined back and case-band of the watch-case.
  • the case-band 2 has two diametrically opposed projections 8, the inner edges of which form a guide for the wristband 5 and prevent it from turning with respect to the watchcase when it is in its position.
  • the cylindrical projection 4 is replaced by a slightly frusto-conical projection 9, so that the ring 10, having a corresponding shape, is snap-fitted on the back 1.
  • the ring 11 is internally threaded and is screwed on the threaded projection 12 of the back 1. Notches 13 are provided in the ring 11, in which a key may be engaged.
  • a protecting washer 14 for instance made of plastics (Teflon) is inserted between the ring 11 and the wristband 5.
  • the wristband 5 is entirely applied against the projections 8, whereas in the preceding examples, a gap was present between the middle portion of the projections 8 and the wristband 5 (see FIG. 1).
  • the wristband should of course have a suitable shape in each case.
  • the projection 15 of the back 1 is again cylindrical, as well as the ring 16, but a corrugated spring 17 engages a groove 18 of the ring 16 and a groove 19 of the projection 15, thereby guaranteeing a good fixing of the ring 16.
  • the wristband 5 has in this case a lug 20 engaged by a reinforcing metallic wire 21; the lug 20 engages a groove 22 of the back 1, thus guaranteeing the guiding of the wristband 5 and preventing it from turning with respect to the watchcase.
  • the back of the watch-case is denoted by the reference numeral 23. It has a projection 24 having the shape of a collar the outer surface of which is cylindrical, whereas its inner surface is slightly frusto-conical.
  • the wristband 25 has a circular hole 26 by which it is engaged on the projection 24 of the back 23.
  • a false back 27 provided with an annular projection 28 is snap-fitted on the projection 24, as shown in FIG. 7, and axially presses the wristband portion which surrounds the hole 26 against the back 23 of the watch-case.
  • the back 23 has flanges 29 forming a guiding portion for the wristband 25, so that the wristband is prevented from turning with respect to the watch-case.
  • FIG. 8 illustrates the third embodiment, in which the back 30 presents a flange 31 screwed on the case-band 32 of the watch-case, by compressing a packing-ring 33.
  • the wristband 34 has a non-circular (for instance polygonal) hole 35 by which it is engaged on a projection 36 of the case-band 32.
  • the outer wall of this projection 36 has'a shape corresponding to that of the hole 35 of the wristband 34 and ensures, therefore, a good guiding of the wristband, preventing it from turning with respect to the watch-case.
  • the inner wall of the projection 36 is circular.
  • a ring 37 having notches 38 is screwed on the flange 31 of the back30 and axially presses the portion of the wristband 34 which surrounds the hole 35 against the bottom' face of the case-band 32.
  • the ring 37 might be made integral with the back 30.
  • it is sulficient to unscrew the ring 37 (or the back if the latter is made integral with the ring), using a special key which has to be engaged in the notches 38, 'to'replace the wristband by another one, and to screw again the ring 37 on the back 30.
  • a device for fixing a wristband to a watch-case in which the wristband, made of a single piece, has a hole by which it is engaged on a projection of the watch-case, a removable fixing member, bearing on the watch-case, axially pressing the wristband portion which surrounds the said hole against a portion of the watch-case, characterized in that the said projection is situated on the rear face of the watch-case and in that the watch-case presents guiding means preventing the wristband from turning with respect to the watch-case when it is in its position.
  • a device as claimed in claim 1, wherein the fixing member consists of a ring screwed on a flange of the back of the watch-case.
  • the said guiding means consist of at least one lug of the wristband, reinforced by a metallic wire, said lug engaging 20 a groove of a portion of the watch-case.

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  • Electric Clocks (AREA)
  • Professional, Industrial, Or Sporting Protective Garments (AREA)
US721013A 1967-05-01 1968-04-12 Device for fixing a wristband to a watch-case Expired - Lifetime US3469391A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH619367A CH569319B5 (de) 1967-05-01 1967-05-01

Publications (1)

Publication Number Publication Date
US3469391A true US3469391A (en) 1969-09-30

Family

ID=4305722

Family Applications (1)

Application Number Title Priority Date Filing Date
US721013A Expired - Lifetime US3469391A (en) 1967-05-01 1968-04-12 Device for fixing a wristband to a watch-case

Country Status (4)

Country Link
US (1) US3469391A (de)
CH (2) CH569319B5 (de)
FR (1) FR1564277A (de)
GB (1) GB1228413A (de)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4417821A (en) * 1980-11-15 1983-11-29 Rodi & Wienenberger Ag Wrist watch
US4506992A (en) * 1982-07-02 1985-03-26 Jean Lassale S.A. Watch case provided with integral bracelet
US4757486A (en) * 1986-10-06 1988-07-12 Bulova Watch Co., Inc. Watch case and bracelet assembly having a soldered look
US4903253A (en) * 1986-10-22 1990-02-20 Eta Sa Fabriques D'ebauches Means for attaching a band to a watch case
CH715301A1 (it) * 2018-09-07 2020-03-13 Romelli C/O Erbicol Sa Luca Orologio con cinturino e cassa intercambiabili.

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH662917GA3 (de) * 1985-04-15 1987-11-13
CH667967GA3 (de) * 1987-02-13 1988-11-30
GB2249709A (en) * 1990-11-14 1992-05-20 Tai Wai Luk Attaching watch to sweatband
GB2282745B (en) * 1993-10-15 1996-04-17 Swee Heng Manufacturing Co Pte Wrist-watch casing assembly

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2219277A (en) * 1938-04-18 1940-10-22 Cecil D Kaufmann Mounting for watchcases
US2472351A (en) * 1945-09-04 1949-06-07 Edward P Tyler Combined watchcase and bracelet
US2559238A (en) * 1946-06-04 1951-07-03 Wallin Edward Watch band attachment
CH333998A (fr) * 1956-11-02 1958-11-15 Manuf De Boites De Montres Pau Montre munie d'un lien pour sa fixation
CH349222A (fr) * 1958-09-24 1960-09-30 Manuf Mirval S A Boîte de montre-bracelet

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2219277A (en) * 1938-04-18 1940-10-22 Cecil D Kaufmann Mounting for watchcases
US2472351A (en) * 1945-09-04 1949-06-07 Edward P Tyler Combined watchcase and bracelet
US2559238A (en) * 1946-06-04 1951-07-03 Wallin Edward Watch band attachment
CH333998A (fr) * 1956-11-02 1958-11-15 Manuf De Boites De Montres Pau Montre munie d'un lien pour sa fixation
CH349222A (fr) * 1958-09-24 1960-09-30 Manuf Mirval S A Boîte de montre-bracelet

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4417821A (en) * 1980-11-15 1983-11-29 Rodi & Wienenberger Ag Wrist watch
US4506992A (en) * 1982-07-02 1985-03-26 Jean Lassale S.A. Watch case provided with integral bracelet
US4757486A (en) * 1986-10-06 1988-07-12 Bulova Watch Co., Inc. Watch case and bracelet assembly having a soldered look
US4903253A (en) * 1986-10-22 1990-02-20 Eta Sa Fabriques D'ebauches Means for attaching a band to a watch case
CH715301A1 (it) * 2018-09-07 2020-03-13 Romelli C/O Erbicol Sa Luca Orologio con cinturino e cassa intercambiabili.

Also Published As

Publication number Publication date
FR1564277A (de) 1969-04-18
GB1228413A (de) 1971-04-15
CH569319B5 (de) 1975-11-14
CH619367A4 (de) 1975-05-15
DE1757204A1 (de) 1972-01-05

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