FR2224920A1 - Electromagnetic watch movement - permanent magnet and core-free coil drive escapement - Google Patents

Electromagnetic watch movement - permanent magnet and core-free coil drive escapement

Info

Publication number
FR2224920A1
FR2224920A1 FR7312603A FR7312603A FR2224920A1 FR 2224920 A1 FR2224920 A1 FR 2224920A1 FR 7312603 A FR7312603 A FR 7312603A FR 7312603 A FR7312603 A FR 7312603A FR 2224920 A1 FR2224920 A1 FR 2224920A1
Authority
FR
France
Prior art keywords
core
electromagnetic
permanent magnet
coil
coil drive
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.)
Granted
Application number
FR7312603A
Other languages
French (fr)
Other versions
FR2224920B1 (en
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.)
TDK Micronas GmbH
ITT Inc
Original Assignee
Deutsche ITT Industries GmbH
ITT Industries Inc
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 Deutsche ITT Industries GmbH, ITT Industries Inc filed Critical Deutsche ITT Industries GmbH
Priority to FR7312603A priority Critical patent/FR2224920A1/en
Publication of FR2224920A1 publication Critical patent/FR2224920A1/en
Application granted granted Critical
Publication of FR2224920B1 publication Critical patent/FR2224920B1/fr
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K33/00—Motors with reciprocating, oscillating or vibrating magnet, armature or coil system
    • H02K33/18—Motors with reciprocating, oscillating or vibrating magnet, armature or coil system with coil systems moving upon intermittent or reversed energisation thereof by interaction with a fixed field system, e.g. permanent magnets
    • 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
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/06—Means for converting reciprocating motion into rotary motion or vice versa
    • H02K7/065—Electromechanical oscillators; Vibrating magnetic drives

Abstract

No resonance is required for this construction and also it is not influenced by shocks or sudden arm movements. A coil (2) without a core swings between the permanent magnetic poles (1). It is supplied by the output of a frequency divider in combination with a quarts oscillator. The coil returns into its original resting position through two springs (3) which are also used for its supply. In line with the coil axis in a toothed wheel (8) perpendicular to it. A ratchet (10) on the coil provides its movement.
FR7312603A 1973-04-09 1973-04-09 Electromagnetic watch movement - permanent magnet and core-free coil drive escapement Granted FR2224920A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7312603A FR2224920A1 (en) 1973-04-09 1973-04-09 Electromagnetic watch movement - permanent magnet and core-free coil drive escapement

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7312603A FR2224920A1 (en) 1973-04-09 1973-04-09 Electromagnetic watch movement - permanent magnet and core-free coil drive escapement

Publications (2)

Publication Number Publication Date
FR2224920A1 true FR2224920A1 (en) 1974-10-31
FR2224920B1 FR2224920B1 (en) 1977-02-04

Family

ID=9117598

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7312603A Granted FR2224920A1 (en) 1973-04-09 1973-04-09 Electromagnetic watch movement - permanent magnet and core-free coil drive escapement

Country Status (1)

Country Link
FR (1) FR2224920A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0247556A2 (en) * 1986-05-28 1987-12-02 J. Hengstler GmbH & Co. KG Electromagnetic drive for a counter having ironless oscillating coils
EP0278113A1 (en) * 1986-12-27 1988-08-17 Kabushiki Kaisha Toshiba Movable coil driving unit

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0247556A2 (en) * 1986-05-28 1987-12-02 J. Hengstler GmbH & Co. KG Electromagnetic drive for a counter having ironless oscillating coils
EP0247556A3 (en) * 1986-05-28 1988-09-28 J. Hengstler GmbH & Co. KG Electromagnetic drive for a counter having ironless oscillating coils
EP0278113A1 (en) * 1986-12-27 1988-08-17 Kabushiki Kaisha Toshiba Movable coil driving unit
US4902996A (en) * 1986-12-27 1990-02-20 Kabushiki Kaisha Toshiba Movable coil driving unit

Also Published As

Publication number Publication date
FR2224920B1 (en) 1977-02-04

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Legal Events

Date Code Title Description
ST Notification of lapse