US3690058A - Electric or electronic timepiece - Google Patents

Electric or electronic timepiece Download PDF

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Publication number
US3690058A
US3690058A US70189A US3690058DA US3690058A US 3690058 A US3690058 A US 3690058A US 70189 A US70189 A US 70189A US 3690058D A US3690058D A US 3690058DA US 3690058 A US3690058 A US 3690058A
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US
United States
Prior art keywords
regulating
lever
transmitting
state
switch
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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
US70189A
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English (en)
Inventor
Masahiro Kurita
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.)
Suwa Seikosha KK
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Suwa Seikosha KK
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Filing date
Publication date
Application filed by Suwa Seikosha KK filed Critical Suwa Seikosha KK
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Publication of US3690058A publication Critical patent/US3690058A/en
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    • G—PHYSICS
    • G04—HOROLOGY
    • G04C—ELECTROMECHANICAL CLOCKS OR WATCHES
    • G04C9/00—Electrically-actuated devices for setting the time-indicating means

Definitions

  • ABSTRACT [30] Foreign Application Priority Data An electric or electronic timepiece is provided with a mechanical regulating member coordinately actuated Sept. 25, 1969 Japan ..44/76098 with a Switch so that driving current for the elecmy mechanical transducer of the timepiece is cut off be- [52] US. (ii. Raga/85.3 I fore operative engagement by said regulating member 3 R B 2 and is not restored until after said regulating member is disengaged.
  • This invention relates to an electric or electronic watch having a second hand regulating device.
  • a switch is generally provided for disconnecting the battery voltage source or a part of the driving circuit of the electro-mechanical transducer of the timepiece when the second hand is regulated and to permit adjustment of the driving signal.
  • an electric or electronic timepiece wherein the timing of the second hand is regulated mechanically coordinate with the application or cutting off of driving current to an electro-mechanical transducer. Regulation of the second hand is achieved by a mechanical regulating member which engages a portion of the time train of the timepiece, while switch means is provided for controlling the application of driving current to said electro-mechanical transducer.
  • the means for coordinately operating said switch means and said regulating member is adapted to cut off the current to said electro-mechanical transducer before operative engagement between said regulating member and said time train, and to disengage said regulating member from said time train before said driving current is reapplied to said electro-mechanical transducer.
  • FIG. 1 is a block diagram of an electronic watch according to the invention.
  • FIG. 2 is a plan view of the important parts of said watch.
  • FIG. 1 shows a diagram of an electronic watch having a battery 1 as the driving source.
  • the accuracy of timekeeping is determined by a crystal oscillator 2.
  • An electric signal produced by crystal oscillator 2 and an oscillating circuit 3 is divided by a divider circuit 4.
  • Pulse signal 17 thus produced is sent as a driving signal to driving coil 5, which is connected to the stators 6 and 6' of a step motor, which serves as an electro-mechanical transducer.
  • the rotor 7 of said step motor formed from permanent magnets having alternating north and south poles, is intermittently rotated at a rate of one pole per second in response to the pulse signal applied to driving coil 5.
  • This rotation is transmitted to the time train of the timepiece through seconds wheel 8 by means of pinion l depicted in FIG. 2.
  • Pinion is mounted coaxially with the rotor of said step motor, the second hand being adapted to move one second in response to a one-pole rotation of the rotor.
  • this timepiece is provided with a reset switch 9 electrically connected with a divider circuit 4 for controlling the application of the driving pulse signal 17 to driving coil 5.
  • This reset switch is set as follows:
  • a regulating transmitting lever 11 mounted coaxially on setting lever pin 12, rotates about the axis of setting lever pin 12.
  • the rotation of regulating transmitting lever 11 operates regulating lever 10 and alternately shortcircuits and disconnects contact point 9A of reset switch 9 with contact portion 11A of said regulating transmitting lever.
  • said regulating transmitting lever has two functions. One is its use as a substitute for the contact of the reset switch, while the other is the operation of regulating lever 10.
  • regulating transmitting lever 11 positions regulating lever 10 in the position shown in full lines, at which regulating portion 10C is out of engagement with regulating cam 14. Further, said regulating transmitting lever is out of engagement with reset switch 9, also as shown in full lines.
  • regulating lever is disengaged from regulating cam 14 before reset switch 9 is released to permit the application of driving current to the step motor.
  • the reset switch is shortcircuited before regulating lever 10 engages the regulating cam, so as to ensure that the regulating cam has come to a stop before such engagement.
  • regulating portion 10C is in the path of regulating cam 14 while said regulating cam is rotating, thereby causing mechanical interference, which tends to delay starting time. This is especially the case in electric or electronic timepieces having second hands which are moved intermittently. In such timepieces, the member to be regulated is interfered with by the regulating member for the period of one driving pulse, so that one or a half second is lost, thereby making it difficult to set the second hand to a standard time, and obviating the provision of the regulating means.
  • An electric or electronic timepiece comprising an electro-mechanical transducer including an electrical driving portion and a mechanical driven portion; a time train including and driven by said mechanical portion of said electro-mechanical transducer; a driving circuit for applying a driving signal to said electrical portion of said electro-mechanical transducer; mechanical regulating means for displacement between at least a first position in interfering relation with a portion of said time train for regulating said time train and a second position out of interfering relation with said time train;
  • switch means positionable in a first state at which said driving signal is applied to said electrical portion of said electro-mechanical transducer and a second state at which said driving signal is not so applied; and means for coordinately actuating said switch means and regulating means so that said regulating means is displaced from its first position to its second position before said switch means is switched from its second state to its first state and so that said regulating means is displaced from its second position to its first position after said switch means is switched from its first state to its second state, whereby said regulating means does not interfere with the moving time train.
  • electro-mechanical transducer is a step motor, said electrical driving portion being a driving coil, said mechanical driven portion being a rotor, said time train including a regulating cam for cooperative engagement with said regulating means.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electromechanical Clocks (AREA)
US70189A 1969-09-25 1970-09-08 Electric or electronic timepiece Expired - Lifetime US3690058A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7609869 1969-09-25

Publications (1)

Publication Number Publication Date
US3690058A true US3690058A (en) 1972-09-12

Family

ID=13595369

Family Applications (1)

Application Number Title Priority Date Filing Date
US70189A Expired - Lifetime US3690058A (en) 1969-09-25 1970-09-08 Electric or electronic timepiece

Country Status (4)

Country Link
US (1) US3690058A (enrdf_load_stackoverflow)
CH (3) CH1420470A4 (enrdf_load_stackoverflow)
GB (1) GB1302219A (enrdf_load_stackoverflow)
MY (1) MY7600170A (enrdf_load_stackoverflow)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3792577A (en) * 1971-11-18 1974-02-19 K Fujita Quartz crystal wrist watch
US3810357A (en) * 1972-03-17 1974-05-14 Copal Co Ltd Timer device
US3824781A (en) * 1973-03-14 1974-07-23 Timex Corp Horological movement employing inductive stepping motor
US3939644A (en) * 1973-06-25 1976-02-24 Licentia Patent-Verwaltungs-G.M.B.H. Circuit arrangement for controlling the running of a quartz-controlled electric clock
US4022013A (en) * 1972-03-02 1977-05-10 Kabushiki Kaisha Suwa Seikosha Regulating device for electric timepieces
US4150536A (en) * 1976-01-28 1979-04-24 Citizen Watch Company Limited Electronic timepiece
JPS5873530U (ja) * 1981-11-12 1983-05-18 セイコーエプソン株式会社 電子時計の接点構造
US6196713B1 (en) * 1996-09-18 2001-03-06 Lange Uhren Gmbh Device for adjusting the minutes hand of a watch with at least a minutes and a seconds hand
US20060140064A1 (en) * 2004-12-28 2006-06-29 Taichi Haga Reset lever apparatus and electronic timepiece having the same
US20060233199A1 (en) * 2001-12-28 2006-10-19 David Harriman Communicating message request transaction types between agents in a computer system using multiple message groups
US20070230286A1 (en) * 2006-03-28 2007-10-04 Karl-Friedrich Scheufele Second hand reset device for a timepiece

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3526088A (en) * 1968-06-21 1970-09-01 Timex Corp Watch setting crown mechanism

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3526088A (en) * 1968-06-21 1970-09-01 Timex Corp Watch setting crown mechanism

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3792577A (en) * 1971-11-18 1974-02-19 K Fujita Quartz crystal wrist watch
US4022013A (en) * 1972-03-02 1977-05-10 Kabushiki Kaisha Suwa Seikosha Regulating device for electric timepieces
US3810357A (en) * 1972-03-17 1974-05-14 Copal Co Ltd Timer device
US3824781A (en) * 1973-03-14 1974-07-23 Timex Corp Horological movement employing inductive stepping motor
US3939644A (en) * 1973-06-25 1976-02-24 Licentia Patent-Verwaltungs-G.M.B.H. Circuit arrangement for controlling the running of a quartz-controlled electric clock
US4150536A (en) * 1976-01-28 1979-04-24 Citizen Watch Company Limited Electronic timepiece
JPS5873530U (ja) * 1981-11-12 1983-05-18 セイコーエプソン株式会社 電子時計の接点構造
US6196713B1 (en) * 1996-09-18 2001-03-06 Lange Uhren Gmbh Device for adjusting the minutes hand of a watch with at least a minutes and a seconds hand
US20060233199A1 (en) * 2001-12-28 2006-10-19 David Harriman Communicating message request transaction types between agents in a computer system using multiple message groups
US20060140064A1 (en) * 2004-12-28 2006-06-29 Taichi Haga Reset lever apparatus and electronic timepiece having the same
US20070230286A1 (en) * 2006-03-28 2007-10-04 Karl-Friedrich Scheufele Second hand reset device for a timepiece
US7322741B2 (en) * 2006-03-28 2008-01-29 Chopard Manufacture Sa Second hand reset device for a timepiece

Also Published As

Publication number Publication date
GB1302219A (enrdf_load_stackoverflow) 1973-01-04
CH558955B (de)
CH558955A (fr) 1975-02-14
MY7600170A (en) 1976-12-31
CH1420470A4 (enrdf_load_stackoverflow) 1974-07-31
CH599593B5 (enrdf_load_stackoverflow) 1978-05-31
CH790374A4 (enrdf_load_stackoverflow) 1977-07-29

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