US3561209A - Wristwatch wristlet mounting means - Google Patents

Wristwatch wristlet mounting means Download PDF

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Publication number
US3561209A
US3561209A US763813A US3561209DA US3561209A US 3561209 A US3561209 A US 3561209A US 763813 A US763813 A US 763813A US 3561209D A US3561209D A US 3561209DA US 3561209 A US3561209 A US 3561209A
Authority
US
United States
Prior art keywords
side wall
springs
ring
wristlet
wristwatch
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
US763813A
Other languages
English (en)
Inventor
Gerard Cachelin
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
Priority claimed from CH1385467A external-priority patent/CH492250A/fr
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 US3561209A publication Critical patent/US3561209A/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
    • G04B37/0008—Cases for pocket watches and 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
    • G04B37/14—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

  • a wristwatch case having a side wall on which is engaged a removable outer ring, the adjacent faces of these members each having a groove in which fit the ends of two spring elements serving to axially maintain the outer ring on the side wall, the middle part of these elements forming lugs or loops for fixing the wristlet.
  • the present invention has for its object a wristwatch, the case of which has a side wall on which is engaged a removable outer ring.
  • the present invention precisely has for its object a wristwatch with a removable outer ring or bezel in which the wristlet does not participate in the retention of the ring on the side wall.
  • the wristwatch according to the invention is characterized by the fact that the facing surfaces of the side wall and ring each have a groove in which fit the extremities of two spring wires so as to axially retain the outer ring on the side wall, the middle part of these springs forming loops or lugs for securing the wristlet.
  • FIG. 1 shows a first embodiment seen in cross section taken along line H of FIG. 2.
  • FIG. 2. shows a plane view and cross section taken along line II-II of FIG. 1.
  • FIG. 3 shows a modification of the winding stem.
  • FIG. 4 shows an underneath plan view partially in cross section of a second embodiment.
  • FIG. 5 shows this second embodiment with springs unhooked.
  • a single shell case 1 is closed by a crystal 2, and has a movement '3 disposed therein and surmounted by a dial 4.
  • the single shell case 1 includes the back of the watch, and a side wall 5 extending from the periphery of the back.
  • An outer ring 6 fits axially over the side wall 5, and is provided with a bezel 7 which bears axially on a portion of the side wall 5.
  • Both the sides wall 5 and the ring 6 are provided with grooves 8, 9, respectively, which makes it possible to axially unite the case and ring by means of two spring wires the extremities of which 10a simultaneously engage in the two grooves 8 and 9. That is, the grooves 8 and 9 are in face to face alignment, and both members 5 and .6 have openings therein for receiving the wire ends 10a.
  • the middle parts 10b of these springs form two loops for securing the wristlet.
  • the extremities 10a of the springs have a curvature which is identical to that of groove 8 but the centre of which does not coincide with that of the gIOOVe so that they pinch the side wall 5, within the groove 8, in such a way that the elastic deformation of these springs which are tends to radially expel the springs retained by the ring 6.
  • These springs therefore bear simultaneously on the outward face of the groove 8 in the side wall 5 and the inner face of the groove 9 in the ring 6, thereby maintaining same together without intervention on the part of wristlet.
  • a slight radial play 11 is additionally left between the member 5 and 6, on the one hand to facilitate the introduction of the ring on the side wall and on the other hand so that impacts received by the ring are not transmitted directly to the shell 1 but are transmitted by springs 10 which thus behave like shock absorbers.
  • FIG. 3 shows as a modification how it is possible to take advantage of the presence of the removable ring 6 to form a stop during movement of the winding stem.
  • a stop is in effect desirable in a single shell case when the stem is pulled to set, since an excessive pulling force may result in the stem being pulled out completely.
  • an outer removable ring 12 mounted on a shell side wall 13 and extends into a tube 14 on which slides a winding button 15.
  • the ring 12 has space 16 near the tube in which slides a tubular sleeve 17 set in the button 15 and having a heel 18 which, when the button 15 is pulled, meets wall 19 of ring 12.
  • This construction naturally is only possible with an outer ring of the type described, and having a U-shape which makes it possible to introduce it on the tube.
  • the invention is particularly effective when the outer ring encloses the lower edge of the crystal, whereby the removable ring hides the side wall.
  • the shell side wall 21 has a circular groove 22 and can form part of a single shell case, and outer ring 23, which is removable, has a circular groove 24 and two spaces 25 and 26 allow the passage of loops 27a and 28a formed by two springs 27 and 28.
  • the extremities of these springs have curved surfaces 29 and 30, 31 and 32 respectively, by means of which the springs were hooked to one another. In this hooked position the springs are applied against the bottom of grooves 22 and completely free the outer ring 23.
  • the springs hook automatically one to the other when pressure is exerted on loops 27a and 28a in the direction of arrows F1 and F2 by grasping for example the watch between two fingers.
  • the engagement ofthe springs is facilitated by two inclined planes 33 and 34 at the extremities of one of the springs.
  • the springs being hooked to one another it is easy to dispose, remove or exchange the outer ring without risk of either loosening the spring or of letting fall either the outer ring or the case as a result of a false movement.
  • the outer ring being in place it suffices to exert a slight pull on the loops to unhook the springs which then will occupy the position shown in FIG. 5 and engage to groove 24 in the outer ring thereby locking the latter. This locking position is maintained on the one hand by the pull of the bracelet and on the other hand by the opposite action of the two springs.
  • the ends of the springs can be any configuration whatever, but is preferably round or polygonal.
  • a wristwatch comprising a case, a side wall for said case, a removable outer ring engaged over said side wall, said side wall and ring having facing grooves, and spring elements having extremities engaging in said grooves in order to axially maintain said ring on said side wall, the middle part of said elements forming loops serving to secure a wristlet, wherein said extremities of said spring elements pinch said side wall, said side wall being curved and said extremities having a curvature substantially identical therewith but closed in such a way that an inward radial pressure exerted on the middle part of said elements will apply the ends of said springs solely within the groove of said side wall, to thereby free said outer ring.
  • a wristwatch according to claim 1 wherein said extremities of said spring elements have hooking means for hooking said springs to one another to remain hooked when they are radially urged on their middle part against the inner face of said side wall groove.
  • a wristwatch comprising a case, a side wall for said case, a removable outer ring engaged over said said side wall, said side wall and ring having facing in said grooves in order to axially maintain said ring on said side Wall, the middle part of said elements forming loops serving to secure a wristlet, a tube inegral with said side wall and a winding button sliding thereon, and a space being provided between said side wall and ring, tubular element carried by said button and having an extremity movable in said space and able to contact said side wall and ring during axial movement of said button on said tube, said side wall and ring thereby forming a stop limiting movement of said button.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electric Clocks (AREA)
  • Clamps And Clips (AREA)
US763813A 1967-10-04 1968-09-30 Wristwatch wristlet mounting means Expired - Lifetime US3561209A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH1385467A CH492250A (fr) 1967-10-04 1967-10-04 Montre-bracelet
CH463068A CH519744A (fr) 1967-10-04 1968-03-28 Montre-bracelet

Publications (1)

Publication Number Publication Date
US3561209A true US3561209A (en) 1971-02-09

Family

ID=25695944

Family Applications (1)

Application Number Title Priority Date Filing Date
US763813A Expired - Lifetime US3561209A (en) 1967-10-04 1968-09-30 Wristwatch wristlet mounting means

Country Status (2)

Country Link
US (1) US3561209A (fr)
CH (1) CH519744A (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3659383A (en) * 1970-04-22 1972-05-02 Tissot Horlogerie Wrist watch strap connections
GB2244665A (en) * 1990-02-23 1991-12-11 Colin Edward Lawrence Drill shaft and bit with compressed gas swarf clearance

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10229050C1 (de) * 2002-06-28 2003-06-18 Audi Ag Armbandbefestigung

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3659383A (en) * 1970-04-22 1972-05-02 Tissot Horlogerie Wrist watch strap connections
GB2244665A (en) * 1990-02-23 1991-12-11 Colin Edward Lawrence Drill shaft and bit with compressed gas swarf clearance
GB2244665B (en) * 1990-02-23 1994-05-11 Colin Edward Lawrence Drill bit and shaft with compressed gas swarf clearance

Also Published As

Publication number Publication date
DE1798364A1 (de) 1972-04-20
CH519744A (fr) 1971-11-15
DE1798364B2 (de) 1972-11-30

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