US3849980A - Jumping-dial wrist-watch with date indicator - Google Patents

Jumping-dial wrist-watch with date indicator Download PDF

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Publication number
US3849980A
US3849980A US00454960A US45496074A US3849980A US 3849980 A US3849980 A US 3849980A US 00454960 A US00454960 A US 00454960A US 45496074 A US45496074 A US 45496074A US 3849980 A US3849980 A US 3849980A
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US
United States
Prior art keywords
indicator
hours
movement
center
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
US00454960A
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English (en)
Inventor
J Laesser
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.)
Ebauches SA
Original Assignee
Ebauches 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 Ebauches SA filed Critical Ebauches SA
Application granted granted Critical
Publication of US3849980A publication Critical patent/US3849980A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • 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
    • G04B19/00—Indicating the time by visual means
    • G04B19/20—Indicating by numbered bands, drums, discs, or sheets
    • G04B19/202—Indicating by numbered bands, drums, discs, or sheets by means of turning discs

Definitions

  • the present invention relates to a jumping-dial wristwatch comprising a resilient connecting member between the hour-wheel and the hours indicator, which is submitted to the action of a retaining member which, operated by a cam rigid with the minutes indicator, releases the said hours indicator once per hour, permitting it to make an instantaneous jump during which the next numeral of the hours numerals comes opposite a window for the reading of the hours.
  • Such wrist-watches are known per se.
  • the object of the present invention is to furnish a solution to this problem.
  • the wrist-watch according to the invention is characterised by the fact that it comprises a date indicator constituted by an annular disc coaxial to the center of the movement, the hours indicator being constituted by a crown-shaped member innerly toothed, eccentered with respect to the centre of the movement, so as not to mask the date indicator, the inner toothing of the hours indicator meshing with a driving wheel coaxial to the center of the movement, connected to the said resilient device.
  • the drawing shows, by way of example, one embodiment of the object of the invention.
  • FIG. 1 is a plan view of a portion of a jumping-dial wrist-watch.
  • FIG. 2 is an axial sectional view of a portion of the movement of this watch, at a larger scale, and
  • FIG. 3 is a plan view of a portion of this movement, at a scale intermediary between the scales of FIGS. 1 and 2.
  • the wrist-watch represented comprises a casing the bezel l of which has its opening 2 having a rectangular general shape through which appears a dial 3.
  • This dial is provided with a first window 4 in which appear the numerals 5 of an hours indicator constituted by an annular crown 6 and with a second window 7 in which appear the date indications 8 carried by an annular crown 9.
  • the movement comprises a hour-wheel 14 (FIG. 2) coaxial to the center of the movement and which drives, by means of a non represented setting-wheel, a cannonpinion I5 carrying the minutes disc 10.
  • the seconds disc 12 is carried by the center second shaft 16 the end of which has only been represented.
  • the date crown 9, coaxial to the center of the movement, is innerly toothed and is operated by a driving mechanism,'not represented, known per se, driven by a wheel 17 rigid with the hour-wheel l4 and a control member of which acts, once per 24 hours, on the said inner toothing of the indicator 9.
  • the annular crown 6 constituting the hours indicator is eccentered with respect to the center of the movement, its center being indicated at 18 in FIG. 3.
  • This crown 6 is provided with an inner toothing 6a meshing with a driving wheel 19, coaxial to the center of the movement, rotatably mounted on a disc 20, rotating with the hourwheel 14, and which is provided with a cover 21 secured by means of screws 22.
  • the driving wheel 19 of the hours indicating crown 6 is connected to the disc 20 by means of a hair-spring 23 the inner end of which is secured to the hub 20a of the disc 20 and the outer end of which carries a finger 24 passing through a passage 25 provided in the rim, designated by 20b, of the disc 20 and which is engaged in a radial slot 26 of the wheel 19.
  • the crown 6 of the hours indicator is provided with twelve peripheral teeth 6a with which cooperates a catch 27a of a resilient retaining lever 27, secured at 28 to the frame of the movement, the end of which is provided with a peen 271; with which cooperates a protrusion 10a (FIG. 3), once per revolution, of the minutes disc 10.
  • the hours crown 6 is normally retained by the lever 27, the spring 23 bending itself during the rotation of the hour-wheel 14. Once per hour, the protrusion 10a of the minutes disc I0 moves the lever 27, that releases the crown 6 which advances then of one step, bringing the next numeral of the hours numerals 5 opposite the window 4 of reading of the hours.
  • the displacements of the crown 6 are limited by the length of the passage 25 provided in the rim 20b of the disc 20, in which moves itself the finger 24.
  • the two windows 4 and 7- of reading of the hours and. of the dates, respectively can be situated at the same distance from the center of the movement without the indicator of one of them masking the indicator of the other one.
  • a jumping-dial wrist-watch with date indicator comprising a resilient connecting member between the hour-wheel and the hours indicator, which is submitted to the action of a retaining member which, operated by a cam rigid with the minutes indicator, releases the said hours indicator once per hour, permitting it to make an instantaneous jump during which the next numeral of the hours numerals comes opposite a window for the reading of the hours, said date indicator being constituted by an annular disc coaxial to the center of the movement, the hours indicator being constituted by a crown-shaped member innerly toothed, eccentered with respect to the center of the movement, so as not to mask the date indicator, the inner toothing of the hours indicator meshing with a driving wheel which is coaxial to the center of the movement and connected to the said resilient device.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electromechanical Clocks (AREA)
US00454960A 1973-03-29 1974-03-26 Jumping-dial wrist-watch with date indicator Expired - Lifetime US3849980A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH451573A CH565401A (ko) 1973-03-29 1973-03-29

Publications (1)

Publication Number Publication Date
US3849980A true US3849980A (en) 1974-11-26

Family

ID=4277531

Family Applications (1)

Application Number Title Priority Date Filing Date
US00454960A Expired - Lifetime US3849980A (en) 1973-03-29 1974-03-26 Jumping-dial wrist-watch with date indicator

Country Status (6)

Country Link
US (1) US3849980A (ko)
JP (1) JPS49130770A (ko)
CH (2) CH451573A4 (ko)
DE (1) DE2415039B2 (ko)
FR (1) FR2223736B1 (ko)
GB (1) GB1430504A (ko)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4885731A (en) * 1989-02-23 1989-12-05 Massaro Dominic W Child's easy-to-read timepiece
USD919453S1 (en) * 2019-07-22 2021-05-18 Luxury Goods International (L.G.I.) SA Wristwatch
USD919451S1 (en) * 2019-03-11 2021-05-18 Luxury Goods International (L.G.I.) SA Wristwatch

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH676187GA3 (en) * 1989-02-06 1990-12-28 Decorative time display device - has time display ring rotated around outside of central display surface
DE29621215U1 (de) * 1996-12-06 1997-02-06 Shört Warenhandels GmbH, 40217 Düsseldorf Anzeige einer Uhr
DE10023381A1 (de) * 2000-05-12 2001-11-22 Axel Philipp Treide Zeitzonenuhr

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1450996A (en) * 1920-08-11 1923-04-10 Horlogerie Et Bijouterie De Ge Time indicator
US3537255A (en) * 1967-12-22 1970-11-03 Ch Tissot & Cie Day-date watch

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1450996A (en) * 1920-08-11 1923-04-10 Horlogerie Et Bijouterie De Ge Time indicator
US3537255A (en) * 1967-12-22 1970-11-03 Ch Tissot & Cie Day-date watch

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4885731A (en) * 1989-02-23 1989-12-05 Massaro Dominic W Child's easy-to-read timepiece
USD919451S1 (en) * 2019-03-11 2021-05-18 Luxury Goods International (L.G.I.) SA Wristwatch
USD919453S1 (en) * 2019-07-22 2021-05-18 Luxury Goods International (L.G.I.) SA Wristwatch

Also Published As

Publication number Publication date
DE2415039B2 (de) 1975-03-27
FR2223736B1 (ko) 1978-08-04
DE2415039A1 (de) 1974-10-17
JPS49130770A (ko) 1974-12-14
CH451573A4 (fr) 1975-03-14
GB1430504A (en) 1976-03-31
CH565401A (ko) 1975-08-15
FR2223736A1 (ko) 1974-10-25

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