US3691753A - Electric or electronic timepiece - Google Patents

Electric or electronic timepiece Download PDF

Info

Publication number
US3691753A
US3691753A US70141A US3691753DA US3691753A US 3691753 A US3691753 A US 3691753A US 70141 A US70141 A US 70141A US 3691753D A US3691753D A US 3691753DA US 3691753 A US3691753 A US 3691753A
Authority
US
United States
Prior art keywords
rotor
electric
wheel
electric signal
displaceable
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
US70141A
Other languages
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
Original Assignee
Suwa Seikosha KK
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 Suwa Seikosha KK filed Critical Suwa Seikosha KK
Application granted granted Critical
Publication of US3691753A publication Critical patent/US3691753A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • G—PHYSICS
    • G04—HOROLOGY
    • G04C—ELECTROMECHANICAL CLOCKS OR WATCHES
    • G04C13/00—Driving mechanisms for clocks by primary clocks
    • G04C13/08—Secondary clocks actuated intermittently
    • G04C13/10—Secondary clocks actuated intermittently by electromechanical step advancing mechanisms
    • G04C13/11—Secondary clocks actuated intermittently by electromechanical step advancing mechanisms with rotating armature
    • G—PHYSICS
    • G04—HOROLOGY
    • G04C—ELECTROMECHANICAL CLOCKS OR WATCHES
    • G04C3/00—Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means
    • G04C3/001—Electromechanical switches for setting or display
    • G04C3/005—Multiple switches
    • G—PHYSICS
    • G04—HOROLOGY
    • G04C—ELECTROMECHANICAL CLOCKS OR WATCHES
    • G04C9/00—Electrically-actuated devices for setting the time-indicating means

Definitions

  • ABSTRACT An electric or electronic timepiece having a step Sept. 25, l969 Japan ..44/90974 motor energized by an electric signal and a second 52 us. Cl. 58/23 R 58/855 whee Wing inemmemly and drive by Said 511 Int. Cl. nooks/00,0021) 27/00 A member is "mumed the inter [58] mediate wheel coupling said rotor and second wheel,
  • FIG. 1 shows a preferred embodiment of the movemerit of the electronic timepiece according to the present invention
  • FIG. 2 is a plan view of its important parts
  • FIG. 3 shows a driving electric signal wave form of said timepiece.
  • the present invention relates to an electric or electronic timepiece having a second hand moving intermittently.
  • the driving signal supplied by an electronic circuit, has a synchronous action with a regulating position of the second hand, the second hand beingstopped by pulling out the stem and being started by pushing in the stem.
  • the object of the'invention is to regulate and actuate the second hand by setting the second hand to the second mark on the dial.
  • FIG. 1 shows an electronic timepiece having a battery 1 and a crystal oscillator 2 determining a time standard.
  • the reverse pulse driving signal shown in FIG. 3 is the electric signal produced by crystal oscillator 2 and oscillation circuit 3 as divided by the frequency dividing circuit 4, and is sent to the driving coil 6 connected to the stators and 5 of the step motor.
  • a rotor 7 of the step motor formed from a plurality of permanent magnets having poles circumferentially alternated between North and South, is rotated intermittently at one pole per second. The rotation is transmitted to the second increments wheel 9 through pinion 8 co-axial with the rotor of the step motor.
  • the second hand is advanced 1 second by the rotation of the rotor by one pole.
  • the second jumper 20, engaging with the teeth of the second wheel, isprovided to regulate fluctuation of the second hand caused by the backlash of the second wheel and rotor pinion.
  • This timepiece is also provided with the reset switch 10, connecting electrically with the frequency dividing circuit 4.
  • the regulating transmitting lever 12, co-axial with the setting lever pin 11, is rotated around the axis of the setting lever pin 11 by pulling out the stem 13, the contact A of the reset switch 10 being alternately linked with and separated from the contact 12A of the regulating transmitting lever 12.
  • the contacts are short-circuited when the stem 13 is pulled out, the regulating transmitting lever and the reset switch being in the position of 12 and 10' in FIG. 2.
  • the contacts are separated when the stem 13 is pushed in, the regulating transmitting lever and the reset switch are in the position of 12 and 10.
  • the contact of the reset switch is short-circuited, even if the driving signal, sent to the terminals 17 and 18 of the driving coil 6, as shown in FIG. 1, is short-circuited at any time position of one period from T to T of the driving signal, shown in FIG. 3, the frequency dividing circuit 4 will continue to operate as far as the position of T and stop therein and remain at rest while the reset switch is short-circuited.
  • the frequency dividing circuit will start its operation in a moment, thus releasing the driving signal shown in FIG.
  • the second hand position regulated by said reset switch is limited to any position of odd seconds or even seconds by virtue of necessity of the regulation by synchronizing the reverse pulse of the driving signal with the magnetic poles of the rotor 7.
  • Said cam has three projections, being half the number of the rotor projections of the step motor said projections being aligned with the magnetic poles of the rotor 7 to that rotor 7 of step motor cam be rotated as soon as said contact of the reset switch is released from the short-circuited state.
  • the regulating transmitting lever mounted co-axial with the setting lever 11, as shown in FIG. 2 will rotate in a counterclockwise direction, so that the engaging portion 128 of the regulating transmitting lever 12 will push up the slope 14C of the regulating lever and also rotate the v regulating lever 14 with about arbor 15 in a counterclockwise direction.
  • the engaging portion 128 of the regulating transmitting lever 12 will engage with the engaging portion 14A of the regulating lever 14.
  • the contact 12A of the regulating transmitting lever 12 will be separated from the contact 10A of the reset switch 10 at this portion.
  • the driving signal shown in FIG. 3 will send the driving pulse A from the rest position T to the driving coil 6, so that the rotor 7 of the step motor, placed at the position in which the rotor can be rotated by the driving pulse A, will be rotated.
  • cam 19 the member to be regulated, mounted co-axial with the rotor 7 of the step motor provides numerous advantages. It is possible not only to decrease the number of a cam teeth, but to produce the small and light cam.
  • the second hand can be regulated by setting to the second mark on the dial, while the position of the magnetic pole of the rotor can be regulated exactly. Further, the next incremental movement of the magnetic pole can be easily achieved upon the removal of regulation.
  • the simple structure of the rotor regulating portion of the regulating lever is made possible, because the teeth of the cam to be re gulated are few and pitches are large.
  • the object of the invention is performed by regulating the second wheel directly, it is necessary to provide a member to be regulated having 30 teeth mounted on the second wheel having 60 teeth, so that a timepiece pitch cannot be provided unless the outer diameter is enlarged, thereby making it difficult to form the regulating portion of the regulating lever in a small size, thereby reducing the second regulating accuracy.
  • An electric or electronic timepiece comprising a step motor having a rotor; means for producing an electric driving signal connected to said step motor for incrementally advancing said rotor; a second wheel operatively coupled to said rotor for incremental rotation in response thereto; cam means mounted on said rotor for rotation therewith; and means displaceable into and out of engagement with said cam means coordinated with the cutting off and restarting of said electric signal respectively for rotatably positioning said rotor, and therefore said second wheel, at predetermined positions when said electric signal is cut off.
  • An electric or electronic timepiece comprising a step motor having a rotor; means for producing a driving electric signal for incrementally rotating said rotor; an intermediate wheel operatively coupled to said rotor for rotation therewith; a second wheel operatively coupled to said intermediate wheel for incremental rotation in response to the rotation of said rotor; cam means mounted on said intermediate wheel for rotation therewith; and means displaceable into and out of engagement with said cam means for positioning said intermediate wheel, and therefore said second wheel, at predetermined positions when said elector signal is cut off.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electromechanical Clocks (AREA)
US70141A 1969-09-25 1970-09-08 Electric or electronic timepiece Expired - Lifetime US3691753A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1969090974U JPS4917670Y1 (enrdf_load_stackoverflow) 1969-09-25 1969-09-25

Publications (1)

Publication Number Publication Date
US3691753A true US3691753A (en) 1972-09-19

Family

ID=14013466

Family Applications (1)

Application Number Title Priority Date Filing Date
US70141A Expired - Lifetime US3691753A (en) 1969-09-25 1970-09-08 Electric or electronic timepiece

Country Status (4)

Country Link
US (1) US3691753A (enrdf_load_stackoverflow)
JP (1) JPS4917670Y1 (enrdf_load_stackoverflow)
CH (5) CH1196674A4 (enrdf_load_stackoverflow)
GB (1) GB1302220A (enrdf_load_stackoverflow)

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3796038A (en) * 1971-07-09 1974-03-12 Y Ushiyama Time correcting mechanism
JPS5031973U (enrdf_load_stackoverflow) * 1973-07-16 1975-04-08
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
US4034551A (en) * 1975-05-15 1977-07-12 Kabushiki Kaisha Suwa Seikosha Safety feature for function control circuit
US4037402A (en) * 1974-03-29 1977-07-26 Licentia Patent-Verwaltungs-G.M.B.H. Circuit arrangement for a quartz controlled electrical clock
US4050234A (en) * 1973-08-30 1977-09-27 Kabushiki Kaisha Suwa Seikosha Electronic timepiece hand-return mechanism
US4051666A (en) * 1974-11-21 1977-10-04 Kabushiki Kaisha Suwa Seikosha Electronic timepiece hand-adjustment mechanism
US4198809A (en) * 1977-05-28 1980-04-22 Citizen Watch Co., Ltd. Construction of an analogue crystal wrist watch
FR2448215A1 (fr) * 1979-02-01 1980-08-29 Bulova Watch Co Inc Dispositif d'ensemble d'actionnement manuel de contacts pour une montre electronique
US4266291A (en) * 1977-12-27 1981-05-05 Iida Sankyo Co., Ltd. Electromagnetic swing device
US4392748A (en) * 1979-11-06 1983-07-12 Kabushiki Kaisha Suwa Seikosha Quartz crystal watch
US4408898A (en) * 1979-11-16 1983-10-11 Societe Suisse Pour L'industrie Horlogere Management Services S.A. Positioning mechanism for a center wheel
JPS58158394U (ja) * 1983-02-21 1983-10-22 セイコーエプソン株式会社 電子時計の輪列構造
US4636087A (en) * 1985-01-29 1987-01-13 Casio Computer Co., Ltd. Gear train mechanism stop device of timepiece
US20100080088A1 (en) * 2008-09-29 2010-04-01 Eta Sa Manufacture Horlogere Suisse Time base device for a watch
US20110128826A1 (en) * 2009-12-01 2011-06-02 Takanori Hasegawa Chronograph timepiece

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2632303C3 (de) * 1976-07-17 1982-09-16 Gebrüder Junghans GmbH, 7230 Schramberg Batteriebetriebene elektronische Uhr
CH624538B (fr) * 1979-04-04 Ebauches Sa Piece d'horlogerie electronique.

Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3796038A (en) * 1971-07-09 1974-03-12 Y Ushiyama Time correcting mechanism
US4022013A (en) * 1972-03-02 1977-05-10 Kabushiki Kaisha Suwa Seikosha Regulating device for electric timepieces
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
JPS5031973U (enrdf_load_stackoverflow) * 1973-07-16 1975-04-08
US4050234A (en) * 1973-08-30 1977-09-27 Kabushiki Kaisha Suwa Seikosha Electronic timepiece hand-return mechanism
US4037402A (en) * 1974-03-29 1977-07-26 Licentia Patent-Verwaltungs-G.M.B.H. Circuit arrangement for a quartz controlled electrical clock
US4051666A (en) * 1974-11-21 1977-10-04 Kabushiki Kaisha Suwa Seikosha Electronic timepiece hand-adjustment mechanism
US4034551A (en) * 1975-05-15 1977-07-12 Kabushiki Kaisha Suwa Seikosha Safety feature for function control circuit
US4198809A (en) * 1977-05-28 1980-04-22 Citizen Watch Co., Ltd. Construction of an analogue crystal wrist watch
US4266291A (en) * 1977-12-27 1981-05-05 Iida Sankyo Co., Ltd. Electromagnetic swing device
FR2448215A1 (fr) * 1979-02-01 1980-08-29 Bulova Watch Co Inc Dispositif d'ensemble d'actionnement manuel de contacts pour une montre electronique
US4392748A (en) * 1979-11-06 1983-07-12 Kabushiki Kaisha Suwa Seikosha Quartz crystal watch
US4408898A (en) * 1979-11-16 1983-10-11 Societe Suisse Pour L'industrie Horlogere Management Services S.A. Positioning mechanism for a center wheel
JPS58158394U (ja) * 1983-02-21 1983-10-22 セイコーエプソン株式会社 電子時計の輪列構造
US4636087A (en) * 1985-01-29 1987-01-13 Casio Computer Co., Ltd. Gear train mechanism stop device of timepiece
EP0189893B1 (en) * 1985-01-29 1992-09-09 Casio Computer Company Limited Gear train mechanism stop device of timepiece
US20100080088A1 (en) * 2008-09-29 2010-04-01 Eta Sa Manufacture Horlogere Suisse Time base device for a watch
US8259537B2 (en) * 2008-09-29 2012-09-04 Eta Sa Manufacture Horlogère Suisse Time base device for a watch
US20110128826A1 (en) * 2009-12-01 2011-06-02 Takanori Hasegawa Chronograph timepiece
US8540417B2 (en) * 2009-12-01 2013-09-24 Seiko Instruments Inc. Chronograph timepiece

Also Published As

Publication number Publication date
CH616299GA3 (enrdf_load_stackoverflow) 1980-03-31
CH1196674A4 (enrdf_load_stackoverflow) 1976-04-30
GB1302220A (enrdf_load_stackoverflow) 1973-01-04
CH616299B (fr)
CH580836B5 (enrdf_load_stackoverflow) 1976-10-15
JPS4917670Y1 (enrdf_load_stackoverflow) 1974-05-08
CH617311GA3 (enrdf_load_stackoverflow) 1980-05-30
CH1420370A4 (fr) 1974-09-13

Similar Documents

Publication Publication Date Title
US3691753A (en) Electric or electronic timepiece
US4540291A (en) Horology module comprising an electronic circuit and a calendar device
EP1662343B1 (en) Electronic apparatus, method for detecting positions of pointer members in electronic apparatus, and a program for detecting positions of pointer members in electronic apparatus
JPH1073673A (ja) 機能表示装置
JPH06300864A (ja) クロノグラフ時計
JP2017106753A (ja) 電子時計および電子時計の表示制御方法
US9740171B2 (en) Electronic timepiece
US3676993A (en) Electronic watch
CN104122786B (zh) 一种钟表
US4050234A (en) Electronic timepiece hand-return mechanism
US3859783A (en) Day-date calendar mechanism
US4261048A (en) Analog quartz timepiece
US3690058A (en) Electric or electronic timepiece
JPS6045834B2 (ja) 時計用日表示部材の送り機構
US3765164A (en) Device to stop timepiece balance wheels
US3728855A (en) Crystal controlled movement with frequency dividing circuitry
US4173863A (en) Analog quartz timepiece
US3817024A (en) Time-setter for an electronic timepiece
US3744234A (en) Electronic timepiece with positionable rotor
GB1467135A (en) Timepiece movement
US3875737A (en) Alarm clock timer
US4022013A (en) Regulating device for electric timepieces
US3498046A (en) Alarm apparatus and clock movement
US3620004A (en) Time indicating device of direct read-off type
GB2027235A (en) Improvements in or relating to electronic analog timepieces