CH671496GA3 - - Google Patents

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Publication number
CH671496GA3
CH671496GA3 CH485687A CH485687A CH671496GA3 CH 671496G A3 CH671496G A3 CH 671496GA3 CH 485687 A CH485687 A CH 485687A CH 485687 A CH485687 A CH 485687A CH 671496G A3 CH671496G A3 CH 671496GA3
Authority
CH
Switzerland
Prior art keywords
capacitor
cell
motor
terminals
pulse
Prior art date
Application number
CH485687A
Other languages
French (fr)
Other versions
CH671496B5 (en
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 filed Critical
Priority to CH4856/87A priority Critical patent/CH671496B5/fr
Priority to KR1019880015722A priority patent/KR890010637A/en
Priority to EP88120330A priority patent/EP0320754B1/en
Priority to DE8888120330T priority patent/DE3863537D1/en
Priority to US07/281,613 priority patent/US4901295A/en
Priority to JP63312137A priority patent/JPH01197690A/en
Publication of CH671496GA3 publication Critical patent/CH671496GA3/fr
Publication of CH671496B5 publication Critical patent/CH671496B5/fr

Links

Classifications

    • G—PHYSICS
    • G04—HOROLOGY
    • G04C—ELECTROMECHANICAL CLOCKS OR WATCHES
    • G04C10/00—Arrangements of electric power supplies in time pieces
    • G04C10/02—Arrangements of electric power supplies in time pieces the power supply being a radioactive or photovoltaic source
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Electromechanical Clocks (AREA)
  • Control Of Stepping Motors (AREA)
  • Control Of Motors That Do Not Use Commutators (AREA)
  • Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)
  • Tension Adjustment In Filamentary Materials (AREA)
  • Spinning Or Twisting Of Yarns (AREA)

Abstract

The rewinding device consists of a photoelectric cell (3) placed so as to receive ambient light, a capacitor (4) connected to the terminals of the cell, a stepping motor (6), and a control circuit (5). The input to the circuit is connected to the capacitor terminals and its output is connected to the terminals of the motor whose rotor is coupled to the clockwork spring, e.g. of a watch, in order to rewind it. <??>The cell (3) charges the capacitor (4) and when its voltage, measured by a differential amplifier (23), reaches a reference voltage (Vr), the capacitor is connected to the motor terminals by a switching transistor (27). The discharge of the capacitor supplies a driving pulse to the motor. The duration of the pulse is determined by a monostable flip-flop (25). After the pulse, the capacitor is once again charged by the cell. <??>In order to prevent the motor from receiving a driving pulse before being stopped, in the event of intense illumination of the cell, another monostable flip-flop (29) prevents the control of the switching transistor (27) for a period of time corresponding to the time required for the rotor to perform a complete step. <IMAGE>
CH4856/87A 1987-12-11 1987-12-11 CH671496B5 (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
CH4856/87A CH671496B5 (en) 1987-12-11 1987-12-11
KR1019880015722A KR890010637A (en) 1987-12-11 1988-11-28 Devices with photocell for barrel spring winding
EP88120330A EP0320754B1 (en) 1987-12-11 1988-12-06 Device for rewinding the main spring of a clockwork comprising a photo-electric cell
DE8888120330T DE3863537D1 (en) 1987-12-11 1988-12-06 DEVICE WITH A PHOTOCELL FOR RETRACTING THE TENSION SPRING.
US07/281,613 US4901295A (en) 1987-12-11 1988-12-09 Device comprising a solar cell for winding a barrel spring
JP63312137A JPH01197690A (en) 1987-12-11 1988-12-12 Apparatus for winding barrel type coil

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH4856/87A CH671496B5 (en) 1987-12-11 1987-12-11

Publications (2)

Publication Number Publication Date
CH671496GA3 true CH671496GA3 (en) 1989-09-15
CH671496B5 CH671496B5 (en) 1990-03-15

Family

ID=4283738

Family Applications (1)

Application Number Title Priority Date Filing Date
CH4856/87A CH671496B5 (en) 1987-12-11 1987-12-11

Country Status (6)

Country Link
US (1) US4901295A (en)
EP (1) EP0320754B1 (en)
JP (1) JPH01197690A (en)
KR (1) KR890010637A (en)
CH (1) CH671496B5 (en)
DE (1) DE3863537D1 (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02239244A (en) * 1989-03-14 1990-09-21 Fuji Photo Film Co Ltd Silver halide color photosensitive material
JP2803991B2 (en) * 1994-06-02 1998-09-24 株式会社多川商事 Solar cell device and intermittent operation device using the same
JP4755763B2 (en) * 1999-04-28 2011-08-24 シチズンホールディングス株式会社 Electronic clock
US7626892B2 (en) * 2006-05-01 2009-12-01 Tai-Her Yang Timing device with power winder
DE102009003290A1 (en) * 2009-05-20 2010-11-25 Robert Bosch Gmbh Method for operating a drive device and drive device and ventilation device or shading
FR2955676A1 (en) 2010-01-28 2011-07-29 Regantox Sa MECHANICAL WATCH WITH SOLAR ENERGY-POWERED MICROMOTOR RE-ASSEMBLY DEVICE FROM A PHOTOVOLTAIC CELL INTEGRATED WITH THE HOUSING
DE102016211503B3 (en) * 2016-06-27 2017-11-02 Innovartis Gmbh Solar clock with a mechanical, a spring drive having automatic movement
EP3299908B1 (en) 2016-09-27 2019-08-14 The Swatch Group Research and Development Ltd. Self-winding watch
EP4024140A1 (en) * 2020-12-29 2022-07-06 The Swatch Group Research and Development Ltd Power management method for a solar watch

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH1308A (en) * 1889-08-07 1889-11-09 Leon Mueller Safety hose
CH13259A (en) * 1896-09-17 1897-05-31 Lavals Angturbin Ab De Waterproof seal for flexible shaft or rod
DE1834479U (en) * 1961-01-13 1961-07-06 Frida Dirks TIME CLOCK.
GB890349A (en) * 1959-12-15 1962-02-28 Kenji Tokita Electric clock
EP0241202A2 (en) * 1986-04-08 1987-10-14 Seiko Instruments Inc. Analog electronic timepiece with charging function

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2004076A1 (en) * 1970-01-30 1971-08-05 Kieninger & Obergfell Electronic clock with low power requirements

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH1308A (en) * 1889-08-07 1889-11-09 Leon Mueller Safety hose
CH13259A (en) * 1896-09-17 1897-05-31 Lavals Angturbin Ab De Waterproof seal for flexible shaft or rod
GB890349A (en) * 1959-12-15 1962-02-28 Kenji Tokita Electric clock
DE1834479U (en) * 1961-01-13 1961-07-06 Frida Dirks TIME CLOCK.
EP0241202A2 (en) * 1986-04-08 1987-10-14 Seiko Instruments Inc. Analog electronic timepiece with charging function

Also Published As

Publication number Publication date
JPH01197690A (en) 1989-08-09
EP0320754A1 (en) 1989-06-21
CH671496B5 (en) 1990-03-15
EP0320754B1 (en) 1991-07-03
US4901295A (en) 1990-02-13
KR890010637A (en) 1989-08-09
DE3863537D1 (en) 1991-08-08

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