FR2375639A1 - Display control switch for digital watches - is operated by flexing wrist muscles to bend flexible cover plate pressing against coil spring - Google Patents

Display control switch for digital watches - is operated by flexing wrist muscles to bend flexible cover plate pressing against coil spring

Info

Publication number
FR2375639A1
FR2375639A1 FR7627643A FR7627643A FR2375639A1 FR 2375639 A1 FR2375639 A1 FR 2375639A1 FR 7627643 A FR7627643 A FR 7627643A FR 7627643 A FR7627643 A FR 7627643A FR 2375639 A1 FR2375639 A1 FR 2375639A1
Authority
FR
France
Prior art keywords
operated
cover plate
switch
display control
coil spring
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.)
Withdrawn
Application number
FR7627643A
Other languages
French (fr)
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to FR7627643A priority Critical patent/FR2375639A1/en
Publication of FR2375639A1 publication Critical patent/FR2375639A1/en
Withdrawn legal-status Critical Current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
    • G04C3/001—Electromechanical switches for setting or display

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electric Clocks (AREA)
  • Electromechanical Clocks (AREA)

Abstract

A switch is esp. intended to activate the read-out display of digital watches. The switch overcomes the problem of having to use the non-watch carrying hand to bring the display into operation and is operated by contracting the hand muscles or flexing the wrist. The switch is initially activated by a cover plate (1) which is milled to provide friction with the skin. This cover works against a conical spring (2) within the watch and is held in position by three equispaced grooves engaging with mating rods. The switch proper is operated by a stalk driven by the cover, square keying preventing rotation of the mechanism.
FR7627643A 1976-09-13 1976-09-13 Display control switch for digital watches - is operated by flexing wrist muscles to bend flexible cover plate pressing against coil spring Withdrawn FR2375639A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7627643A FR2375639A1 (en) 1976-09-13 1976-09-13 Display control switch for digital watches - is operated by flexing wrist muscles to bend flexible cover plate pressing against coil spring

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7627643A FR2375639A1 (en) 1976-09-13 1976-09-13 Display control switch for digital watches - is operated by flexing wrist muscles to bend flexible cover plate pressing against coil spring

Publications (1)

Publication Number Publication Date
FR2375639A1 true FR2375639A1 (en) 1978-07-21

Family

ID=9177685

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7627643A Withdrawn FR2375639A1 (en) 1976-09-13 1976-09-13 Display control switch for digital watches - is operated by flexing wrist muscles to bend flexible cover plate pressing against coil spring

Country Status (1)

Country Link
FR (1) FR2375639A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1989010585A1 (en) * 1988-04-23 1989-11-02 Urbansky Ruediger Wrist watch

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1989010585A1 (en) * 1988-04-23 1989-11-02 Urbansky Ruediger Wrist watch

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Legal Events

Date Code Title Description
ST Notification of lapse