FR2272432A1 - Clock spring acting as current conductor carrier - conductor on neutral plane of spring - Google Patents

Clock spring acting as current conductor carrier - conductor on neutral plane of spring

Info

Publication number
FR2272432A1
FR2272432A1 FR7516006A FR7516006A FR2272432A1 FR 2272432 A1 FR2272432 A1 FR 2272432A1 FR 7516006 A FR7516006 A FR 7516006A FR 7516006 A FR7516006 A FR 7516006A FR 2272432 A1 FR2272432 A1 FR 2272432A1
Authority
FR
France
Prior art keywords
conductor
spring
neutral plane
clock
carrier
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
FR7516006A
Other languages
French (fr)
Other versions
FR2272432B3 (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.)
Timex Group USA Inc
Original Assignee
Timex Corp
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 Timex Corp filed Critical Timex Corp
Publication of FR2272432A1 publication Critical patent/FR2272432A1/en
Application granted granted Critical
Publication of FR2272432B3 publication Critical patent/FR2272432B3/fr
Granted legal-status Critical Current

Links

Classifications

    • 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
    • G04C3/04—Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means wherein movement is regulated by a balance
    • G04C3/06—Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means wherein movement is regulated by a balance using electromagnetic coupling between electric power source and balance
    • G04C3/065—Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means wherein movement is regulated by a balance using electromagnetic coupling between electric power source and balance the balance controlling gear-train by means of static switches, e.g. transistor circuits

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Electromagnetism (AREA)
  • Power Engineering (AREA)
  • General Physics & Mathematics (AREA)
  • Springs (AREA)
  • Electric Clocks (AREA)

Abstract

The hair springs are used for balance wheels associated with electromechanical clock or watch movements, or moving coil instruments. To minimise the bending stresses on the conductor (9) which is fixed to the narrow edge of the coil spring (8) the former is arranged to lie along the neutral bending plane (19). As an element in this plane experiences neither tension or compression, as the spring flexes the resultant fatigue stresses in the conductor are minimised. In most applications the conductor is insulated from the spring and attached to it with a synthetic resin adhesive.
FR7516006A 1974-05-22 1975-05-22 Clock spring acting as current conductor carrier - conductor on neutral plane of spring Granted FR2272432A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US47239374A 1974-05-22 1974-05-22

Publications (2)

Publication Number Publication Date
FR2272432A1 true FR2272432A1 (en) 1975-12-19
FR2272432B3 FR2272432B3 (en) 1978-12-01

Family

ID=23875343

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7516006A Granted FR2272432A1 (en) 1974-05-22 1975-05-22 Clock spring acting as current conductor carrier - conductor on neutral plane of spring

Country Status (4)

Country Link
JP (1) JPS512469A (en)
CH (2) CH642175A4 (en)
DE (1) DE2519560A1 (en)
FR (1) FR2272432A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10119974A1 (en) * 2001-04-24 2002-10-31 Karlheinz Beckhausen Signals relaying device e.g. for motor vehicle, trains and buses, includes intermediate conductors designed as partly conducting springs

Also Published As

Publication number Publication date
DE2519560A1 (en) 1975-12-04
FR2272432B3 (en) 1978-12-01
CH642175A4 (en) 1976-08-13
CH588112B5 (en) 1977-05-31
JPS512469A (en) 1976-01-10

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Legal Events

Date Code Title Description
ST Notification of lapse