US1973898A - Winding mechanism for timepiece driving springs - Google Patents

Winding mechanism for timepiece driving springs Download PDF

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Publication number
US1973898A
US1973898A US667760A US66776033A US1973898A US 1973898 A US1973898 A US 1973898A US 667760 A US667760 A US 667760A US 66776033 A US66776033 A US 66776033A US 1973898 A US1973898 A US 1973898A
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US
United States
Prior art keywords
spring
pendulum
wheel
winding mechanism
winding
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
US667760A
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English (en)
Inventor
Henry Georges Louis
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Firm Autorem S A
Original Assignee
FIRM AUTOREM S A
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 FIRM AUTOREM S A filed Critical FIRM AUTOREM S A
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Publication of US1973898A publication Critical patent/US1973898A/en
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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
    • G04B5/00—Automatic winding up
    • G04B5/24—Protecting means preventing overwinding

Definitions

  • This invention relates to winding mechanism for the driving spring of timepieces and particularly to pendulum actuated winding mechanism as used in self winding watches.
  • An object of the invention is to provide a winding mechanism of the above type which is extremely simple in construction and without using the usual pawl and ratchet device for transmitting movement from the pendulum to the winding train, which device is rather expensive.
  • Figure l is a plan view of the pendulum and of the mechanism for transmitting movement to the winding train;
  • Figure 2 a section along the line 22 of Figure 1.
  • the winding pendulum comprises a weight 1 and an arm 2 connected to the weight and 2c mounted on a pivot 3 fixed to the movement frame.
  • a toothed wheel 4 can turn around the aXis 3, this wheel being the first gear of a train connecting the arm 2 to the spring barrel of the watch.
  • the arm 2 carries a satellite gear 5 .ireely mounted on its shaft 6 and toothed over about one third of its periphery, the toothed portion meshing with the wheel 4.
  • the arm 2 is provided with a cavity '7 in which is lodged a blade spring 8 of circular shape and of which the two ends abut against the edges 9 and 10 of the cavity 7.
  • the end 811 of the spring stays immobile relative to the arm 2, while the end 81) can be moved by a pin 11 carried by a lug 12 on the satellite wheel 5.
  • the lug 12 is subjected to the action of spring 13 which is weaker than the spring 8.
  • the Wheel 4 cannot turn about the axis 3.
  • the satellite wheel 5 is then forced to turn about its proper axis, its pin 11 acting on the end 8b of the spring 8, which end is thus approaching the end 8a.
  • the satellite wheel turns in opposite direction and the spring 8 is detensioned.
  • the satellite wheel acts thus on the driving spring as long as this latter is not fully wound; afterwards it acts only on the spring 8.
  • the described winding mechanism is extremely simple, as usually it is necessary in pendulum actuated winding means to provide a pawl and ratchet for transmitting the movement from the weight to the spring barrel, while in the present case only a spring blade 8, a lug l2 and a pin 11 are necessary; the spring is very cheap and owing to its circular shape and to the manner in which it is subjected to stress, it will last for a long time before being fatigued.
  • pendulum actuated winding mechanism for the driving spring of timepieces, said mechanism comprising a train of wheels connecting the pendulum to the driving spring and including a gear wheel mounted on the axis of rotation of the pendulum, a satellite wheel rotatably carried by the pendulum and meshing with said gear wheel, the pendulum being provided with a cavity beneath the satellite wheel, a circular blade spring inserted in said cavity and having one end fixed with respect to the pendulum, the other end of said spring projecting from said cavity, and means on the satellite wheel acting on said projecting spring end upon oscillation of the pendulum in winding direction, whereby the satellite wheel transmits movement to the driving spring as long as the resistance opposed by the driving spring is smaller than that of said circular blade spring.
  • pendulum actuated winding mechanism for the driving spring of timepieces, said mechanism comprising a train of wheels connecting the pendulum to the driving spring and including a gear wheel mounted on the axis of rotation of the pendulum, a satellite wheel meshing with said gear wheel and rotatably mounted on the pendulum, said satellite wheel being toothed over a portion only of its periphery, a spring 3.
  • a pendulum actuated winding mechanism as claimed in claim 2 wherein said means for yieldingly maintaining the satellite wheel against rotation is a spring of smaller force than said spring inserted in the cavity of the pendulum and acted upon by the satellite wheel when the pendulum'oscillates in winding direction.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Silicates, Zeolites, And Molecular Sieves (AREA)
  • External Artificial Organs (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Electromechanical Clocks (AREA)
  • Springs (AREA)
US667760A 1932-04-26 1933-04-24 Winding mechanism for timepiece driving springs Expired - Lifetime US1973898A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CH1973898X 1932-04-26
CH159711T 1932-04-26
CH565455X 1932-04-26

Publications (1)

Publication Number Publication Date
US1973898A true US1973898A (en) 1934-09-18

Family

ID=61622079

Family Applications (1)

Application Number Title Priority Date Filing Date
US667760A Expired - Lifetime US1973898A (en) 1932-04-26 1933-04-24 Winding mechanism for timepiece driving springs

Country Status (3)

Country Link
US (1) US1973898A (de)
CH (1) CH159711A (de)
DE (1) DE565455C (de)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2700868A (en) * 1951-05-23 1955-02-01 Feigel Anton Self-winding watch overwind preventer
US20090129211A1 (en) * 2006-02-22 2009-05-21 Marco Rochat Self-winding watch including an indicator of the power reserve
US20110205857A1 (en) * 2010-02-24 2011-08-25 Blancpain S.A. Oscillating weight for an automatic winding watch, including a power reserve indicator device integrated in said oscillating weight
US20130336096A1 (en) * 2012-06-14 2013-12-19 Blancpain S.A. Display on the oscillating weight of a self-winding movement

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2700868A (en) * 1951-05-23 1955-02-01 Feigel Anton Self-winding watch overwind preventer
US20090129211A1 (en) * 2006-02-22 2009-05-21 Marco Rochat Self-winding watch including an indicator of the power reserve
JP2009527743A (ja) * 2006-02-22 2009-07-30 フレデリック ピゲ エス． エー． パワー・リザーブ表示を有する自動巻時計
US7857502B2 (en) * 2006-02-22 2010-12-28 Blancpain S.A. Self-winding watch including an indicator of the power reserve
US20110205857A1 (en) * 2010-02-24 2011-08-25 Blancpain S.A. Oscillating weight for an automatic winding watch, including a power reserve indicator device integrated in said oscillating weight
US8342740B2 (en) * 2010-02-24 2013-01-01 Blancpain S.A. Oscillating weight for an automatic winding watch, including a power reserve indicator device integrated in said oscillating weight
US20130336096A1 (en) * 2012-06-14 2013-12-19 Blancpain S.A. Display on the oscillating weight of a self-winding movement
US8801269B2 (en) * 2012-06-14 2014-08-12 Blancpain S.A. Display on the oscillating weight of a self-winding movement

Also Published As

Publication number Publication date
CH159711A (fr) 1933-01-31
DE565455C (de) 1932-12-01

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