IT1256544B - Dispositivo indicatore. - Google Patents

Dispositivo indicatore.

Info

Publication number
IT1256544B
IT1256544B ITTO920193A ITTO920193A IT1256544B IT 1256544 B IT1256544 B IT 1256544B IT TO920193 A ITTO920193 A IT TO920193A IT TO920193 A ITTO920193 A IT TO920193A IT 1256544 B IT1256544 B IT 1256544B
Authority
IT
Italy
Prior art keywords
permanent magnet
rotor
reluctance
electromagnet
rotation
Prior art date
Application number
ITTO920193A
Other languages
English (en)
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 filed Critical
Priority to ITTO920193A priority Critical patent/IT1256544B/it
Publication of ITTO920193A0 publication Critical patent/ITTO920193A0/it
Priority to AU37666/93A priority patent/AU3766693A/en
Priority to PCT/IT1993/000021 priority patent/WO1993018491A1/en
Publication of ITTO920193A1 publication Critical patent/ITTO920193A1/it
Application granted granted Critical
Publication of IT1256544B publication Critical patent/IT1256544B/it

Links

Classifications

    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
    • G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
    • G09F9/37—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements being movable elements
    • G09F9/375—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements being movable elements the position of the elements being controlled by the application of a magnetic field
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING SYSTEMS, e.g. PERSONAL CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B5/00—Visible signalling systems, e.g. visible personal calling systems or remote indication of seats occupied
    • G08B5/22—Visible signalling systems, e.g. visible personal calling systems or remote indication of seats occupied using electric transmission; using electromagnetic transmission
    • G08B5/24—Visible signalling systems, e.g. visible personal calling systems or remote indication of seats occupied using electric transmission; using electromagnetic transmission with indicator element moving about a pivot, e.g. hinged flap or rotating vane
    • G08B5/30—Visible signalling systems, e.g. visible personal calling systems or remote indication of seats occupied using electric transmission; using electromagnetic transmission with indicator element moving about a pivot, e.g. hinged flap or rotating vane with rotating or oscillating members, e.g. vanes

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Reciprocating, Oscillating Or Vibrating Motors (AREA)
  • Permanent Field Magnets Of Synchronous Machinery (AREA)

Abstract

Dispositivo indicatore di tipo elettromagnetico comprendente uno statore (3) sagomato a U supportante un rotore (13) a disco (17) angolarmente mobile attorno ad un asse (16) di rotazione tra una prima posizione di presentazione ed una posizione di riposo. La rotazione del rotore (13) è causata dall'azione di attrazione o di repulsione di un elettromagnete (42) su un magnete permanente (28) cilindrico portato dal rotore (13) e magnetizzato linearmente. Il magnete permanente (28) presenta riluttanza (R) non simmetrica rispetto all'asse magnetico (M) e definisce linee di flusso spazialmente asimmetriche in modo tale che il baricentro delle forze di attrazione risulta spostato nel verso della minor riluttanza (R), generando una coppia rotatoria quando il magnete permanente (28) si trova allineato con il nucleo (44) dell'elettromagnete (42). [Figure 3 e 4]
ITTO920193A 1992-03-09 1992-03-09 Dispositivo indicatore. IT1256544B (it)

Priority Applications (3)

Application Number Priority Date Filing Date Title
ITTO920193A IT1256544B (it) 1992-03-09 1992-03-09 Dispositivo indicatore.
AU37666/93A AU3766693A (en) 1992-03-09 1993-03-09 Indicator device
PCT/IT1993/000021 WO1993018491A1 (en) 1992-03-09 1993-03-09 Indicator device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ITTO920193A IT1256544B (it) 1992-03-09 1992-03-09 Dispositivo indicatore.

Publications (3)

Publication Number Publication Date
ITTO920193A0 ITTO920193A0 (it) 1992-03-09
ITTO920193A1 ITTO920193A1 (it) 1993-09-09
IT1256544B true IT1256544B (it) 1995-12-07

Family

ID=11410176

Family Applications (1)

Application Number Title Priority Date Filing Date
ITTO920193A IT1256544B (it) 1992-03-09 1992-03-09 Dispositivo indicatore.

Country Status (2)

Country Link
IT (1) IT1256544B (it)
WO (1) WO1993018491A1 (it)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1492312A (fr) * 1966-07-08 1967-08-18 Dowty Electrics Ltd Indicateur actionné électriquement
US3634857A (en) * 1970-03-24 1972-01-11 Miniature Elect Components Drum indicator
US4393362A (en) * 1982-01-18 1983-07-12 The Staver Company, Inc. Electromagnetic indicator having a rotor disposable in discrete positions

Also Published As

Publication number Publication date
ITTO920193A0 (it) 1992-03-09
WO1993018491A1 (en) 1993-09-16
ITTO920193A1 (it) 1993-09-09

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Legal Events

Date Code Title Description
0001 Granted
TA Fee payment date (situation as of event date), data collected since 19931001

Effective date: 19990323