US3628325A - Self-winding watch - Google Patents

Self-winding watch Download PDF

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Publication number
US3628325A
US3628325A US837679A US3628325DA US3628325A US 3628325 A US3628325 A US 3628325A US 837679 A US837679 A US 837679A US 3628325D A US3628325D A US 3628325DA US 3628325 A US3628325 A US 3628325A
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United States
Prior art keywords
winding
wheel
self
driven
eccentric
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Expired - Lifetime
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US837679A
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Katsuhiko Morita
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Seiko Instruments Inc
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Seiko Instruments Inc
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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
    • G04B5/02—Automatic winding up by self-winding caused by the movement of the watch
    • G04B5/10—Automatic winding up by self-winding caused by the movement of the watch by oscillating weights the movement of which is not limited
    • G04B5/14—Automatic winding up by self-winding caused by the movement of the watch by oscillating weights the movement of which is not limited acting in both directions

Definitions

  • This invention relates generally to wrist watches and more particularly a winding system for self-winding Wristwatches.
  • the conventional self-winding Wristwatches have a bridge and other structure for effecting self-winding. This type of self-winding arrangement limits substantiallythe extent that wrist watches may be made thin in their thickness dimension.
  • Another object is to provide a winding system for self-winding of a wrist watch that allows making of thin wrist watches.
  • a winding system for a self-winding wristwatch has a transmission wheel driven from a bearing pivotally mounting an oscillatable weight oscillating a pawl for driving a toothed wheel driving a ratchet in one direction only for winding.
  • FIG. 1 is a plan view of a known watch winding system
  • FIG. 2 is a section view taken along section line 22 of FIG. 1;
  • FIG. 3 is a plan view of a wrist watch winding system according to the invention.
  • FIG. 4 is a section view taken along section line 44 of FIG. 3.
  • conventional wrist watch winding systems have a bearing comprising an inner ring 1, 2 and balls 3 within the inner ring 4 and an outer ring pivotally mounting an oscillatable weight 5.
  • a two-arm pawl 8 is actuated, as later explained, to drive a toothed wheel 11 having a saw-toothed periphery and integral with a pinion l2 pivotal on a plate and meshing with a gear 13.
  • a bridge 18 is required in the conventional winding system for self winding.
  • An eccentric pin 19 fixed to the inner ring 2 is imparted oscillatory motion for actuating the pawl 8 to drive the toothed wheel 11 rotationally for winding a mainspring, not shown.
  • a threaded screw fixes the eccentric weight 5 to the bearing.
  • This type of winding system has a disadvantage in that the eccentric pin 19 fits into an opening in the pawl and tends to wear as it oscillates the pawl.
  • the winding system according to the invention illustrated in FIGS. 3 and 4 eliminates this disadvantage and eliminates the need of the bridge 18 so that the winding system occupies less space in the thickness direction of a watch and a wristwatch provided with the invention can be made thinner than a wrist watch provided with a winding system such as that described.
  • FIGS. 3 and 4 a winding system embodying the invention is illustrated.
  • This system has a bearing comprising inner ring means 1, 2' with bearing balls 3' held between the ring means 1, 2' and an outer ring or race 4' pivotally mounting an oscilwinding a mainspring, not shown.
  • the toothed wheel and ratchet wheel are likewise mounted on the plate 10 without need of a bridge.
  • the transmission wheel 6 and its eccentric axle 7 are fixed to the plate 10 by a sleeve 14 and screw 15.
  • the toothed wheel 1 1' is secured to the plate 10 by a sleeve 16 and a screw 17 as shown.
  • a self-winding system comprising, a wheel saw-toothed peripherally driven in only one direction, means having a pair of integral pawls oscillatable about a pivoted axis for driving said saw-toothed wheel in one direction only, eccentric pivot means providing said pivotal axis, a transmission wheel integral with said eccentric pivot means for rotating said eccentric pivot means, said eccentric pivot means disposed eccentric to said transmission wheel, said means having the pair of integral pawls comprising means integral with said pawls circumferentially of said eccentric pivot means driven thereby, said transmission wheel having peripheral teeth, an oscillating weight, ball bearing means providing a pivot for said weight having peripheral teeth meshing with said transmission wheel, a pinion driven in conjunction with said wheel driven in one direction, a ratchet wheel having peripheral teeth meshing with said pinion for winding a mainspring, a plate mounting said pivot means, said wheel driven in one direction, said ball bearing means and said ratchet wheel, and said transmission wheel being disposed between
  • said ball bearing means comprises an outer ring having said peripheral teeth, and said oscillating weight being disposed fixed to said outer ring.

Abstract

A winding system for a self-winding wrist watch having a driven ratchet wheel for winding a mainspring by driving the ratchet from an oscillatory pawl oscillated by an eccentric axle driven by an oscillating weight and without the use of a conventional bridge element.

Description

United States Patent Katsuhlko Morita Tokyo, Japan June 30, 1969 Dec. 21, 1971 Kabushiki Kaisha Dalni Seikosha Tokyo, Japan July 2, 1968 Japan Inventor Appl. No. Filed Patented Assignee Priority SELF-WINDING WATCH 2 Claims, 4 Drawing Figs.
US. Cl 58/82 R Field of Search 58/82, 116, 117, 123
[56] References Cited UNITED STATES PATENTS 2,765,679 10/1956 GOdal 58/82AX FOREIGN PATENTS 280,556 1/1952 Switzerland. ss/szA 335,163 12/1951; Switzerland 58/82A 343,302 1/1960 Switzerland 58/82A Primary Examiner-Richard B. Wilkinson Assistant Examiner-George H. Miller, Jr.
Attorney-Robert E. Burns ABSTRACT: A winding system for a self-winding wrist watch having a driven ratchet wheel for winding a mainspring by 1 driving the ratchet from an oscillatory pawl oscillated by an eccentric axle driven by an oscillating weight and without the use of a conventional bridge element.
PATENTEU 015821 1971 3,528,325
sum 1 OF 2 T ill/1111111); uau E-Ell):
SELF-WINDING WATCH This invention relates generally to wrist watches and more particularly a winding system for self-winding Wristwatches.
The conventional self-winding Wristwatches have a bridge and other structure for effecting self-winding. This type of self-winding arrangement limits substantiallythe extent that wrist watches may be made thin in their thickness dimension.
It is an object of the present invention to provide an improved se'lfwinding system for wrist watches.
Another object is to provide a winding system for self-winding of a wrist watch that allows making of thin wrist watches.
According to the invention a winding system for a self-winding wristwatch has a transmission wheel driven from a bearing pivotally mounting an oscillatable weight oscillating a pawl for driving a toothed wheel driving a ratchet in one direction only for winding.
Other features and advantages of the winding system in accordance with the present invention will be better understood as described in the following specification and appended claims, in conjunction with the following drawings in which:
FIG. 1, is a plan view of a known watch winding system;
FIG. 2, is a section view taken along section line 22 of FIG. 1;
FIG. 3, is a plan view of a wrist watch winding system according to the invention; and
FIG. 4, is a section view taken along section line 44 of FIG. 3.
According to the drawings conventional wrist watch winding systems have a bearing comprising an inner ring 1, 2 and balls 3 within the inner ring 4 and an outer ring pivotally mounting an oscillatable weight 5. A two-arm pawl 8 is actuated, as later explained, to drive a toothed wheel 11 having a saw-toothed periphery and integral with a pinion l2 pivotal on a plate and meshing with a gear 13.
A bridge 18 is required in the conventional winding system for self winding. An eccentric pin 19 fixed to the inner ring 2 is imparted oscillatory motion for actuating the pawl 8 to drive the toothed wheel 11 rotationally for winding a mainspring, not shown. A threaded screw fixes the eccentric weight 5 to the bearing.
This type of winding system has a disadvantage in that the eccentric pin 19 fits into an opening in the pawl and tends to wear as it oscillates the pawl. The winding system according to the invention illustrated in FIGS. 3 and 4 eliminates this disadvantage and eliminates the need of the bridge 18 so that the winding system occupies less space in the thickness direction of a watch and a wristwatch provided with the invention can be made thinner than a wrist watch provided with a winding system such as that described.
ln FIGS. 3 and 4 a winding system embodying the invention is illustrated. This system has a bearing comprising inner ring means 1, 2' with bearing balls 3' held between the ring means 1, 2' and an outer ring or race 4' pivotally mounting an oscilwinding a mainspring, not shown. The toothed wheel and ratchet wheel are likewise mounted on the plate 10 without need of a bridge. The transmission wheel 6 and its eccentric axle 7 are fixed to the plate 10 by a sleeve 14 and screw 15. The toothed wheel 1 1' is secured to the plate 10 by a sleeve 16 and a screw 17 as shown.
When the oscillating weight 5 revolves, the outer ring 4 begins to rotate and then the transmission wheel 6 meshing with the outer ring. Thus the eccentric axle 7, in one piece with said wheel 6, lets the pawl lever 8 move with the axle 7 acting as its pivot. Rotation on this pivot avoids wear and tear on the pivot and.the pawl lever. The pawls 8a and 8b are thus moved with an oscillatory motion. The saw toothed whe el ll lS turned only In a clockwise direction. Therefore the pinion l2, and the rachet wheel 13 are revolved, so the mainspring is wound up.
As above mentioned, according to the present invention, there is no need to set a bridge for self winding. It is thus possible to make a thinner watch and the construction of the winding system is strong against abrasions in long use.
lclaim:
1. For use in self-winding wristwatch a self-winding system comprising, a wheel saw-toothed peripherally driven in only one direction, means having a pair of integral pawls oscillatable about a pivoted axis for driving said saw-toothed wheel in one direction only, eccentric pivot means providing said pivotal axis, a transmission wheel integral with said eccentric pivot means for rotating said eccentric pivot means, said eccentric pivot means disposed eccentric to said transmission wheel, said means having the pair of integral pawls comprising means integral with said pawls circumferentially of said eccentric pivot means driven thereby, said transmission wheel having peripheral teeth, an oscillating weight, ball bearing means providing a pivot for said weight having peripheral teeth meshing with said transmission wheel, a pinion driven in conjunction with said wheel driven in one direction, a ratchet wheel having peripheral teeth meshing with said pinion for winding a mainspring, a plate mounting said pivot means, said wheel driven in one direction, said ball bearing means and said ratchet wheel, and said transmission wheel being disposed between said oscillating weight and said plate.
2. For use in a self-winding wristwatch a self-winding system according to claim 1, in which said ball bearing means comprises an outer ring having said peripheral teeth, and said oscillating weight being disposed fixed to said outer ring.

Claims (2)

1. For use in self-winding wristwatch a self-winding system comprising, a wheel saw-toothed peripherally driven in only one direction, means having a pair of integral pawls oscillatable about a pivoted axis for driving said saw-toothed wheel in one direction only, eccentric pivot means providing said pivotal axis, a transmission wheel integral with said eccentric pivot means for rotating said eccentric pivot means, said eccentric pivot means disposed eccentric to said transmission wheel, said means having the pair of integral pawls comprising means integral with said pawls circumferentially of said eccentric pivot means driven thereby, said transmission wheel having peripheral teeth, an oscillating weight, ball bearing means providing a pivot for said weight having peripheral teeth meshing with said transmission wheel, a pinion driven in conjunction with said wheel driven in one direction, a ratchet wheel having peripheral teeth meshing with said pinion for winding a mainspring, a plate mounting said pivot means, said wheel driven in one direction, said ball bearing means and said ratchet wheel, and said transmission wheel being disposed between said oscillating weight and said plate.
2. For use in a self-winding wristwatch a self-winding system according to claim 1, in which said ball bearing means comprises an outer ring having said peripheral teeth, and said oscillating weight being disposed fixed to said outer ring.
US837679A 1968-07-02 1969-06-30 Self-winding watch Expired - Lifetime US3628325A (en)

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Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6422348B1 (en) * 1998-01-07 2002-07-23 Seiko Instruments Inc. Transmission wheel, method for manufacturing transmission wheel and self-winding wheel train structure having transmission wheel
US6485172B1 (en) * 1997-12-18 2002-11-26 Seiko Instruments Inc. Self-winding watch
US20090076467A1 (en) * 2007-03-14 2009-03-19 Pinto Moshe Methods for application of reduced pressure therapy
DE102005063224B4 (en) * 2005-01-21 2009-05-14 Richemont International S.A. Automatic latch lift mechanism
US20100042021A1 (en) * 2008-02-14 2010-02-18 Spiracur, Inc. Devices and methods for treatment of damaged tissue
WO2010102146A1 (en) * 2009-03-04 2010-09-10 Spiracur Inc. Devices and methods to apply alternating level of reduced pressure to tissue
WO2010108294A1 (en) * 2009-03-25 2010-09-30 HUBLOT S.A., Genève Self-winding mechanism
US8246590B2 (en) 2007-10-11 2012-08-21 Spiracur, Inc. Closed incision negative pressure wound therapy device and methods of use
WO2012150492A1 (en) * 2011-05-03 2012-11-08 Patek Philippe Sa Geneve Automatic winding mechanism
US8361043B2 (en) 2009-01-07 2013-01-29 Spiracur Inc. Reduced pressure therapy of the sacral region
US8366693B2 (en) 2009-04-10 2013-02-05 Spiracur, Inc. Methods and devices for applying closed incision negative pressure wound therapy
US8398604B2 (en) 2009-04-10 2013-03-19 Spiracur, Inc. Methods and devices for applying closed incision negative pressure wound therapy
CH706144A1 (en) * 2012-02-29 2013-08-30 Richemont Int Sa Bidirectional automatic winding mechanism for a timepiece movement.
US8728046B2 (en) 2010-08-10 2014-05-20 Spiracur Inc. Controlled negative pressure apparatus and alarm mechanism
US8753322B2 (en) 2010-08-10 2014-06-17 Spiracur Inc. Controlled negative pressure apparatus and alarm mechanism
US20150124572A1 (en) * 2013-11-06 2015-05-07 Eta Sa Manufacture Horlogere Suisse Watch with improved power reserve
US10182947B2 (en) 2008-11-25 2019-01-22 Kci Licensing, Inc. Pressure indicator
US11480922B2 (en) * 2019-02-27 2022-10-25 Seiko Epson Corporation Timepiece

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH280556A (en) * 1949-05-20 1952-01-31 D Ebauches Bernoises S A Etabl Automatic winding mechanism by oscillating weight for watch movement.
US2765679A (en) * 1951-02-28 1956-10-09 Bulova Watch Co Inc Unidirectional driving gear
CH335163A (en) * 1956-08-28 1958-12-31 Guebelin Soehne Ratchet mechanism in a watch with an automatic winding mechanism
CH343302A (en) * 1958-04-14 1959-12-15 Revue Fabriques D Horlogerie T Watch with automatic winding mechanism

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH280556A (en) * 1949-05-20 1952-01-31 D Ebauches Bernoises S A Etabl Automatic winding mechanism by oscillating weight for watch movement.
US2765679A (en) * 1951-02-28 1956-10-09 Bulova Watch Co Inc Unidirectional driving gear
CH335163A (en) * 1956-08-28 1958-12-31 Guebelin Soehne Ratchet mechanism in a watch with an automatic winding mechanism
CH343302A (en) * 1958-04-14 1959-12-15 Revue Fabriques D Horlogerie T Watch with automatic winding mechanism

Cited By (44)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6485172B1 (en) * 1997-12-18 2002-11-26 Seiko Instruments Inc. Self-winding watch
US6422348B1 (en) * 1998-01-07 2002-07-23 Seiko Instruments Inc. Transmission wheel, method for manufacturing transmission wheel and self-winding wheel train structure having transmission wheel
DE102005063224B4 (en) * 2005-01-21 2009-05-14 Richemont International S.A. Automatic latch lift mechanism
US8007491B2 (en) 2007-03-14 2011-08-30 The Board Of Trustees Of The Leland Stanford Junior University Methods for application of reduced pressure therapy
US20090076467A1 (en) * 2007-03-14 2009-03-19 Pinto Moshe Methods for application of reduced pressure therapy
US10335521B2 (en) 2007-03-14 2019-07-02 The Board Of Trustees Of The Leland Stanford Junior University Reduced pressure therapy devices
US10117977B2 (en) 2007-03-14 2018-11-06 The Board Of Trustees Of The Leland Stanford Junior University Devices and methods for application of reduced pressure therapy
US8529532B2 (en) 2007-03-14 2013-09-10 The Board Of Trustees Of The Leland Stanford Junior University Reduced pressure therapy devices
US8562576B2 (en) 2007-10-11 2013-10-22 Spiracur, Inc. Closed incision negative pressure wound therapy device and methods of use
US9421133B2 (en) 2007-10-11 2016-08-23 Kci Licensing, Inc. Closed incision negative pressure wound therapy device and methods of use
US8834434B2 (en) 2007-10-11 2014-09-16 Spiracur Inc. Closed incision negative pressure wound therapy device and methods of use
US8246590B2 (en) 2007-10-11 2012-08-21 Spiracur, Inc. Closed incision negative pressure wound therapy device and methods of use
US8435221B2 (en) 2007-10-11 2013-05-07 Spiracur, Inc. Closed incision negative pressure wound therapy device and methods of use
US8926575B2 (en) 2008-02-14 2015-01-06 Spiracur Inc. Devices and methods for treatment of damaged tissue
US9283307B2 (en) 2008-02-14 2016-03-15 Kci Licensing, Inc. Devices and methods for treatment of damaged tissue
US8961481B2 (en) 2008-02-14 2015-02-24 Spiracur Inc. Devices and methods for treatment of damaged tissue
US8337474B2 (en) 2008-02-14 2012-12-25 Spiracur Inc. Devices and methods for treatment of damaged tissue
US20100042021A1 (en) * 2008-02-14 2010-02-18 Spiracur, Inc. Devices and methods for treatment of damaged tissue
US8177764B2 (en) 2008-02-14 2012-05-15 Spiracur Inc. Devices and methods for treatment of damaged tissue
US20100198173A1 (en) * 2008-02-14 2010-08-05 Spiracur, Inc. Devices and methods for treatment of damaged tissue
US8128607B2 (en) 2008-02-14 2012-03-06 Spiracur Inc. Devices and methods for treatment of damaged tissue
US10182947B2 (en) 2008-11-25 2019-01-22 Kci Licensing, Inc. Pressure indicator
US8361043B2 (en) 2009-01-07 2013-01-29 Spiracur Inc. Reduced pressure therapy of the sacral region
US9259358B2 (en) 2009-01-07 2016-02-16 Kci Licensing, Inc. Reduced pressure therapy of the sacral region
WO2010102146A1 (en) * 2009-03-04 2010-09-10 Spiracur Inc. Devices and methods to apply alternating level of reduced pressure to tissue
US8728045B2 (en) 2009-03-04 2014-05-20 Spiracur Inc. Devices and methods to apply alternating level of reduced pressure to tissue
WO2010108294A1 (en) * 2009-03-25 2010-09-30 HUBLOT S.A., Genève Self-winding mechanism
US8444614B2 (en) 2009-04-10 2013-05-21 Spiracur, Inc. Methods and devices for applying closed incision negative pressure wound therapy
US9345822B2 (en) 2009-04-10 2016-05-24 Kci Licensing, Inc. Methods and devices for applying closed incision negative pressure wound therapy
US8409159B2 (en) 2009-04-10 2013-04-02 Spiracur, Inc. Methods and devices for applying closed incision negative pressure wound therapy
US8398604B2 (en) 2009-04-10 2013-03-19 Spiracur, Inc. Methods and devices for applying closed incision negative pressure wound therapy
US8366693B2 (en) 2009-04-10 2013-02-05 Spiracur, Inc. Methods and devices for applying closed incision negative pressure wound therapy
US9044234B2 (en) 2009-04-10 2015-06-02 Spiracur Inc. Methods and devices for applying closed incision negative pressure wound therapy
US8753322B2 (en) 2010-08-10 2014-06-17 Spiracur Inc. Controlled negative pressure apparatus and alarm mechanism
US8858516B2 (en) 2010-08-10 2014-10-14 Spiracur Inc. Controlled negative pressure apparatus and absorbency mechanism
US8795246B2 (en) 2010-08-10 2014-08-05 Spiracur Inc. Alarm system
US9579430B2 (en) 2010-08-10 2017-02-28 Kci Licensing, Inc. Controlled negative pressure apparatus and alarm mechanism
US9943629B2 (en) 2010-08-10 2018-04-17 Kci Licensing, Inc. Alarm system
US8728046B2 (en) 2010-08-10 2014-05-20 Spiracur Inc. Controlled negative pressure apparatus and alarm mechanism
WO2012150492A1 (en) * 2011-05-03 2012-11-08 Patek Philippe Sa Geneve Automatic winding mechanism
CH706144A1 (en) * 2012-02-29 2013-08-30 Richemont Int Sa Bidirectional automatic winding mechanism for a timepiece movement.
US9063515B2 (en) * 2013-11-06 2015-06-23 Eta Sa Manufacture Horlogere Suisse Watch with improved power reserve
US20150124572A1 (en) * 2013-11-06 2015-05-07 Eta Sa Manufacture Horlogere Suisse Watch with improved power reserve
US11480922B2 (en) * 2019-02-27 2022-10-25 Seiko Epson Corporation Timepiece

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Publication number Publication date
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