CH610466B5 - Drive device for timepiece with spring and barrel - Google Patents

Drive device for timepiece with spring and barrel

Info

Publication number
CH610466B5
CH610466B5 CH1611168A CH1611168A CH610466B5 CH 610466 B5 CH610466 B5 CH 610466B5 CH 1611168 A CH1611168 A CH 1611168A CH 1611168 A CH1611168 A CH 1611168A CH 610466 B5 CH610466 B5 CH 610466B5
Authority
CH
Switzerland
Prior art keywords
spring
segment
clip
barrel
extremity
Prior art date
Application number
CH1611168A
Other languages
French (fr)
Other versions
CH1611168A4 (en
Inventor
A Renonce A Etre Mentionne Inventeur
Original Assignee
Vimetal 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 Vimetal Sa filed Critical Vimetal Sa
Priority to CH1611168A priority Critical patent/CH610466B5/en
Priority to US869561A priority patent/US3599422A/en
Priority to FR6937065A priority patent/FR2021831B1/fr
Priority to DE19691955391 priority patent/DE1955391A1/en
Publication of CH1611168A4 publication Critical patent/CH1611168A4/en
Publication of CH610466B5 publication Critical patent/CH610466B5/en

Links

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
    • G04B1/00—Driving mechanisms
    • G04B1/10—Driving mechanisms with mainspring
    • G04B1/18—Constructions for connecting the ends of the mainsprings with the barrel or the arbor
    • G04B1/185—Friction clutch between spring and spring cylinder

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Springs (AREA)

Abstract

The end clip (2a) of the spring (2) includes a first segment (2b) extending over a sector alpha of around 100 DEG and having at its root a thickness equal to that of the leaf of the spring. This thickness grows towards the extremity of the clip. A second segment (2c), which extends over a sector beta of around 95 DEG , has at its root a thickness equal to that of the thickest end portion of the first segment, and decreases towards the extremity of the said clip. Finally, a third segment (2d) extends over a sector gamma of around 165 DEG , the arrangement being such that the extremity of the second segment does not bear continuously on the inside face of the wall of the barrel, but takes its bearing thereon at two points. Thus, when the tension in the spring increases, the pressure exerted by the spring on the said wall falls, and the clip is induced to revolve in the barrel. <IMAGE>
CH1611168A 1968-10-29 1968-10-29 Drive device for timepiece with spring and barrel CH610466B5 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
CH1611168A CH610466B5 (en) 1968-10-29 1968-10-29 Drive device for timepiece with spring and barrel
US869561A US3599422A (en) 1968-10-29 1969-10-27 Mainspring slipping ring for a self-winding timepiece
FR6937065A FR2021831B1 (en) 1968-10-29 1969-10-28
DE19691955391 DE1955391A1 (en) 1968-10-29 1969-10-29 Clock drive with mainspring and barrel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH1611168A CH610466B5 (en) 1968-10-29 1968-10-29 Drive device for timepiece with spring and barrel

Publications (2)

Publication Number Publication Date
CH1611168A4 CH1611168A4 (en) 1970-09-15
CH610466B5 true CH610466B5 (en) 1979-04-30

Family

ID=4414550

Family Applications (1)

Application Number Title Priority Date Filing Date
CH1611168A CH610466B5 (en) 1968-10-29 1968-10-29 Drive device for timepiece with spring and barrel

Country Status (4)

Country Link
US (1) US3599422A (en)
CH (1) CH610466B5 (en)
DE (1) DE1955391A1 (en)
FR (1) FR2021831B1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2835189B1 (en) * 2002-01-25 2004-03-19 Ela Medical Sa NECESSARY TO SET UP AN INTRACARDIAC STIMULATION OR DEFIBRILLATION PROBE OF THE RETRACTABLE SCREW TYPE
EP2867734B1 (en) * 2012-06-28 2016-05-04 Nivarox-FAR S.A. Mainspring for a clock piece
EP2977827B1 (en) * 2014-07-22 2017-11-15 Montres Breguet SA Clock barrel with improved force transmission

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US43464A (en) * 1864-07-05 Improvement in springs and barrels for time-keepers
US879829A (en) * 1907-09-26 1908-02-18 Orlando Rose Arbor.
US3130538A (en) * 1957-01-31 1964-04-28 Straumann Inst Ag Self-winding watch barrels
US3433011A (en) * 1966-04-30 1969-03-18 Citizen Watch Co Ltd Barrel spring
CH593507B5 (en) * 1967-01-24 1977-12-15 Vimetal Sa MOTOR SPRING FOR AUTOMATIC WINDING WATCH PART.

Also Published As

Publication number Publication date
FR2021831B1 (en) 1973-11-16
CH1611168A4 (en) 1970-09-15
US3599422A (en) 1971-08-17
FR2021831A1 (en) 1970-07-24
DE1955391A1 (en) 1970-05-06

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Legal Events

Date Code Title Description
PL Patent ceased