US3895485A - Timepiece click device - Google Patents

Timepiece click device Download PDF

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Publication number
US3895485A
US3895485A US442343A US44234374A US3895485A US 3895485 A US3895485 A US 3895485A US 442343 A US442343 A US 442343A US 44234374 A US44234374 A US 44234374A US 3895485 A US3895485 A US 3895485A
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US
United States
Prior art keywords
wheel
timepiece
hour
accordance
spring
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
US442343A
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English (en)
Inventor
Jean-Pierre Gerber
Rudolf Feller
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.)
Zenith Time SA
Original Assignee
Zenith Time 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 Zenith Time SA filed Critical Zenith Time SA
Application granted granted Critical
Publication of US3895485A publication Critical patent/US3895485A/en
Anticipated expiration legal-status Critical
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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
    • G04B27/00—Mechanical devices for setting the time indicating means
    • G04B27/005—Mechanical devices for setting the time indicating means stepwise or on determined values

Definitions

  • a timepiece comprises a click device disposed be- ABSTRACT tween a first hour wheel and a second wheel carrying an hour hand. The first wheel is freely mounted on a shoulder of the second wheel and is held on the shoulder by a leaf spring secured to the second wheel.
  • a boss or recess at the free end of the spring cooperates with one of twelve complementary recesses or bosses on the felloe of the first wheel to hold the first wheel in any one of 12 positions, whereby during use of the timepiece the hour hand can be made to jump by steps by 1 hour.
  • the invention relates to timepieces or components of timepieces comprising a click device between a first hour wheel and a second wheel carrying or being adapted in use of the component to carry an hour indicator such as a hand, this click device permitting the angular position of these two wheels to be changed step-wise.
  • the object of the present invention is the provision of a click device assembly which is simple to construct and of reduced thickness.
  • this click device assembly is such that the first hour wheel is mounted freely on a shoulder of the second wheel, the first wheel being maintained on the shoulder by a leaf spring secured to the second wheel and having at least one arm provided towards a free end thereof with means co-operating with complementary means carried by the first wheel for holding the wheels in any one of a plurality of discrete relative angular positions.
  • FIG. I is a plan view of a first embodiment
  • FIG. 2 is a cross-section along the line AA' of FIG.
  • FIG. 3 is a similar cross-sectional view of a second embodiment
  • FIG. 4 is a modified detail from FIG. 2;
  • FIG. 5 is a modified detail from FIG. 3.
  • FIGS. 1 and 2 comprises a first hour wheel 1 and a second wheel 2 carrying an hour hand 3 on its stem or pipe 4.
  • the first hour wheel I is freely mounted on a shoulder 5 of the wheel 2 and maintained on this shoulder by a spring 6 provided with four symmetrical radially extending arms 6a.
  • Spring 6 is secured to the wheel 2 by a ring 7 tightly fitted on a projecting sleeve of this wheel and by bosses 8 provided on the wheel 2 which engage in notches 9 in the spring; the ring 7 maintains the spring 6 axially, the bosses 8 and the notches 9 establishing the relative angular position of the spring 6 and the wheel 2.
  • the arms 6a of the spring 6 each have means cooperating with complementary means carried by the wheel 1 so as to set the relative angular position of wheels 1 and 2. These means include a boss 617 towards the free end of each arm engaging a respective oneof I2 recesses or, as shown, openings 10 provided in the felloe of wheel 1. Alternatively, as indicated by FIG. 4 l2 bosses 10a could be provided on the wheel 1 entering into recesses or openings 60 provided in the arms 6a. The free ends of arms 60 could alternatively be folded over, for example into V-shape 6d, and lodge in grooves or other recesses 10b of a complementary form provided in the felloe of wheel 1, as indicated by FIG. 5.
  • the hour wheel 1 is driven by a pinion ll of the timepiece gear train.
  • a correction wheel 12 operated by a pinion in conjunction with a manually-operable correcting device enables variation of the angular position of the wheel 2 relative to wheel I by steps each correwith a stem or pipe la carrying a second hour hand lb.
  • Pipe la is connected to the wheel 1 by an integral flange lc with a rim 1d tightly fitted within wheel I.
  • a calendar could be driven by indirect means comprising a 24 hour wheel I3 meshing with wheel 1.
  • the advantages of the described click device assemblies are that they are of a minimal thickness, are simple to construct, and form a unitary assembly which can facilitate the operations of fitting into a watch or other timepiece.
  • a timepiece comprising a click device between a first hour wheel and a second wheel carrying an hour indicator, the improvement wherein the first hour wheel is mounted freely on a shoulder of the second wheel, the first wheel being maintained on the shoulder by a leaf spring secured to the second wheel, and said spring having at least one arm extending to a free end and provided towards said free end with means cooperating with complementary means carried by said first wheel for holding said first and second wheels in any one of a plurality of discrete relative angular positions.
  • a timepiece in accordance with claim 1 wherein the means establishing the relative angular positions of said first and second wheels include a boss on said arm of said spring, and 12 cooperating recesses or openings provided in the felloe of said first wheel.
  • a timepiece in accordance with claim 1 wherein the means establishing the relative angular positions of said first and second wheels include 12 bosses 0n the felloe of the first wheel and a cooperating recess or opening in said arm of said spring.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electromechanical Clocks (AREA)
US442343A 1973-03-06 1974-02-14 Timepiece click device Expired - Lifetime US3895485A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH324573A CH594925B (fr) 1973-03-06 1973-03-06 Dispositif d'encliquetage entre une roue des heures et une roue portant une aiguille des heures.

Publications (1)

Publication Number Publication Date
US3895485A true US3895485A (en) 1975-07-22

Family

ID=4251787

Family Applications (1)

Application Number Title Priority Date Filing Date
US442343A Expired - Lifetime US3895485A (en) 1973-03-06 1974-02-14 Timepiece click device

Country Status (5)

Country Link
US (1) US3895485A (OSRAM)
JP (1) JPS502578A (OSRAM)
CH (2) CH594925B (OSRAM)
FR (1) FR2220816B1 (OSRAM)
GB (1) GB1420534A (OSRAM)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2340485A1 (fr) * 1976-02-05 1977-09-02 Stewart Warner Corp Mecanisme d'entrainement a engrenages pour dispositif indicateur
US4382689A (en) * 1979-02-05 1983-05-10 Emhart Industries, Inc. Clutch for a timing mechanism
US5042725A (en) * 1990-08-03 1991-08-27 Davidson Textron Inc. Method for recovering PVC and urethane foam from automotive interior trim waste
TWI479286B (zh) * 2009-03-17 2015-04-01 Nivarox Sa 時計組件的徑向夾緊系統

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3002636B1 (fr) * 2014-10-02 2017-08-09 ETA SA Manufacture Horlogère Suisse Roues coaxiales débrayables d'un mouvement horloger

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3766730A (en) * 1970-06-01 1973-10-23 Suwa Seikosha Kk Universal watch
US3785141A (en) * 1972-01-13 1974-01-15 Suwa Seikosha Kk Mechanism for a timepiece having a plurality of time display

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2456122A (en) * 1945-06-05 1948-12-14 First Nat Bank Of Boston Time zone watch
JPS515592A (en) * 1974-07-05 1976-01-17 Sankosha Co Ltd Hagatatanshiojusuru koozoo

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3766730A (en) * 1970-06-01 1973-10-23 Suwa Seikosha Kk Universal watch
US3785141A (en) * 1972-01-13 1974-01-15 Suwa Seikosha Kk Mechanism for a timepiece having a plurality of time display

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2340485A1 (fr) * 1976-02-05 1977-09-02 Stewart Warner Corp Mecanisme d'entrainement a engrenages pour dispositif indicateur
US4382689A (en) * 1979-02-05 1983-05-10 Emhart Industries, Inc. Clutch for a timing mechanism
US5042725A (en) * 1990-08-03 1991-08-27 Davidson Textron Inc. Method for recovering PVC and urethane foam from automotive interior trim waste
TWI479286B (zh) * 2009-03-17 2015-04-01 Nivarox Sa 時計組件的徑向夾緊系統

Also Published As

Publication number Publication date
CH324573A4 (OSRAM) 1977-04-15
GB1420534A (en) 1976-01-07
FR2220816B1 (OSRAM) 1977-04-15
JPS502578A (OSRAM) 1975-01-11
CH594925B (fr) 1978-01-31
FR2220816A1 (OSRAM) 1974-10-04

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