EP0046091A2 - Datenanzeigevorrichtung - Google Patents

Datenanzeigevorrichtung Download PDF

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Publication number
EP0046091A2
EP0046091A2 EP81400826A EP81400826A EP0046091A2 EP 0046091 A2 EP0046091 A2 EP 0046091A2 EP 81400826 A EP81400826 A EP 81400826A EP 81400826 A EP81400826 A EP 81400826A EP 0046091 A2 EP0046091 A2 EP 0046091A2
Authority
EP
European Patent Office
Prior art keywords
rotors
group
poles
pole
electromagnet
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
EP81400826A
Other languages
English (en)
French (fr)
Other versions
EP0046091A3 (en
EP0046091B1 (de
Inventor
Jean Rabette
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.)
VANDEPUTTE FILS AND CIE SA
Original Assignee
VANDEPUTTE FILS AND CIE SA
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 VANDEPUTTE FILS AND CIE SA filed Critical VANDEPUTTE FILS AND CIE SA
Priority to AT81400826T priority Critical patent/ATE14950T1/de
Publication of EP0046091A2 publication Critical patent/EP0046091A2/de
Publication of EP0046091A3 publication Critical patent/EP0046091A3/fr
Application granted granted Critical
Publication of EP0046091B1 publication Critical patent/EP0046091B1/de
Expired legal-status Critical Current

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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

Definitions

  • the invention relates to a data display device by means of magnetically controlled bistable rotors.
  • Such devices are already known to date (French patent 79.17804). They comprise at least two rotors, each formed of a body which has, in two diametrically opposite zones, ranges of different colors and which is free to rotate in a support with which it is associated by a shaft.
  • a permanent magnet is attached to this body in rotation, the position of which is such that the line passing through its poles is substantially radial to the axis of the shaft.
  • this magnet cooperates with a pole of an electromagnet connected to a source of direct current by an inverter switch.
  • bistable element The operation of such a bistable element is simple in principle.
  • the electromagnet generally acts on a simple rotor which, to carry this elementary indication must therefore offer opposite surfaces at least as large as that of said indication and, therefore, that the rotor is cylindrical, spherical or plane, it must have, even during its actuation, a place important which can only be reserved for it in very thick panels.
  • the electromagnet has its two poles which have the same spacing as the axes of the two rotors behind which they are placed so that each of them controls one of the rotors by repulsion of the identical pole and attraction of the opposite pole of the permanent magnet.
  • the pole of the permanent magnet identical to that of the electromagnet therefore remains free and its force of repulsion and attraction is therefore not exploited.
  • this electromagnet thus mounted is necessarily limited to the control of a rotor per pole and therefore of two rotors, which still often offers a surface which is too small to carry an elementary indication readable from very far away.
  • a result which the invention aims to obtain is a control of any number of rotors from a single electromagnet whose power practically does not need to be greater than that necessary to control a single rotor.
  • the invention relates to a data display device of the type mentioned above, in particular characterized in that this point itself is made up of several colored areas which are juxtaposed and carried by separate rotors grouped to be controlled. in synchronism and in that, so that all the rotors of the same group are actuated at the same time, this device comprises a single electromagnet, the poles of which are arranged in the plane of the axes of the rotors, and this, in part and other of this whole group of rotors so as to exert their action directly only on the permanent magnets of the rotors located at the ends of the group, and this, exclusively on their pole oriented towards the outside of the group.
  • the bar 11 can therefore be temporarily supplied so that the end 17 or 18 of each of its branches 19, 20 can optionally provide a North or South pole.
  • poles of the electromagnet are located in the perpendicular plane cular to the axes of the rotors, in which the poles of the permanent magnets can rotate.
  • the permanent magnet has contours or cutouts 21, 22 which delimit, in its polar zones, very exactly on either side of the line passing through the poles, polar zone fractions whose distances from the axis of rotation are different from each other and in diametrically opposite manner.
  • This type of permanent magnet is in particular intended not to form a wedging cam as in US patent 3,638,550 but to prevent the rotor 1 from stabilizing in a position where the line passing through the poles 7, 8 of the permanent magnet 6 would merge with the result of the forces exerted by the corresponding pole of the electromagnet 10.
  • a mask 23 can be placed in front of the display unit, in order to protect the bistable rotors. It can then have, facing each body 2, cutouts 24 of the shape of the sign 26 to appear and for example circular, which then makes it possible to affix on the bodies of colored pastilles 3 wider and of contour independent of that of the indication to appear.
  • the most widespread application of such display devices is the reconstitution of characters, such as letters, numbers, drawings or various signs, for example from seven horizontal rows 25 of five points 26 each having an apparent section for example circular or rectangular.
  • points 26 which have to be read at a great distance, those which have a very large diameter or width, are each themselves made up of several distinct colored areas for mant of elements of indications 261, 262, 263, 264 carried by several rotors 101, 102, 103, 104 juxtaposed and controlled in synchronism.
  • the device for the synchronous control of several juxtaposed rotors, the device comprises a single electromagnet 10, the poles 17, 18 of which are arranged in the plane of the axes of the rotors, and this, in part and on the other side of the whole group of rotors to be synchronized 101, 102, 103, 104 so as to only exert their forces, whether repulsive or attractive, on the permanent magnets of the rotors placed at the ends of the group, and this, on their pole oriented towards the outside of the group of rotors.
  • the permanent magnets of the end rotors are preferably arranged so as to rotate in one direction normal.
  • the magnets of the intermediate rotors such as 102 and 103 can on the other hand be of cylindrical shape, without cutting, since they are driven in rotation by the rotating fields of the extreme magnets 101 and 104.
  • the mask in the case where the same point is, as explained above, composed of several elementary indications distributed over several rotors, instead of several cutouts 24, of contour equivalent to each elementary indication, for each point 26, the mask then presents preferably, extending above the body group, a single cutout.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)
  • Displays For Variable Information Using Movable Means (AREA)
  • Control Of El Displays (AREA)
  • Indicating And Signalling Devices For Elevators (AREA)
EP81400826A 1980-07-18 1981-05-25 Datenanzeigevorrichtung Expired EP0046091B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT81400826T ATE14950T1 (de) 1980-07-18 1981-05-25 Datenanzeigevorrichtung.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8016076A FR2487098A1 (fr) 1980-07-18 1980-07-18 Dispositif de visualisation de donnees
FR8016076 1980-07-18

Publications (3)

Publication Number Publication Date
EP0046091A2 true EP0046091A2 (de) 1982-02-17
EP0046091A3 EP0046091A3 (en) 1982-03-17
EP0046091B1 EP0046091B1 (de) 1985-08-14

Family

ID=9244367

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81400826A Expired EP0046091B1 (de) 1980-07-18 1981-05-25 Datenanzeigevorrichtung

Country Status (7)

Country Link
US (1) US4394652A (de)
EP (1) EP0046091B1 (de)
JP (1) JPS5778082A (de)
AT (1) ATE14950T1 (de)
CA (1) CA1158435A (de)
DE (1) DE3171798D1 (de)
FR (1) FR2487098A1 (de)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0058247B1 (de) * 1981-02-09 1985-10-23 GebràœDer Sulzer Aktiengesellschaft Verfahren zur anaeroben Reinigung von mit organischen Stoffen belasteten Flüssigkeiten und Anlage zur Durchführung des Verfahrens
FR2627307A1 (fr) * 1988-02-17 1989-08-18 Erfi Sarl Dispositif bistable electromagnetique
US6960923B2 (en) 2001-12-19 2005-11-01 Formfactor, Inc. Probe card covering system and method
US7202682B2 (en) 2002-12-20 2007-04-10 Formfactor, Inc. Composite motion probing
US7463043B2 (en) 2004-02-18 2008-12-09 Formfactor, Inc. Methods of probing an electronic device

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4459587A (en) * 1981-11-16 1984-07-10 Benco Industries, Inc. Motorized character rotation device and method of selective actuation
US4462177A (en) * 1982-12-06 1984-07-31 Nei Canada Limited A.C. connection circuit for display or indicator
JPS59139081A (ja) * 1983-01-25 1984-08-09 バンデプット・フイル・エ・カンパニイ・エス・ア− 磁気装置によつて励起される双安定要素体およびそのための永久磁石およびそれらを含むユニツト装置を使用するデ−タ表示装置
US4566210A (en) * 1983-06-13 1986-01-28 Nei Canada Limited Display device
US4616221A (en) * 1984-01-19 1986-10-07 Nei Canada Limited Electromagnetic display
SE453618B (sv) * 1985-08-15 1988-02-15 Asea Ab Anordning for aterstellning av indikeringsdon
IT1244552B (it) * 1990-12-12 1994-07-15 Solari Udine Spa Cella elementare aggregabile per la realizzazione di visualizzatori a matrice di punti

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3307170A (en) * 1963-02-27 1967-02-28 Fujitsu Ltd Multi-face indicator system
US3638550A (en) * 1966-12-30 1972-02-01 John R Hereford Rotary electromagnetic actuator
AU7448074A (en) * 1973-10-26 1976-04-29 Caritato Ltd Programmable displays
US3924226A (en) * 1974-05-28 1975-12-02 F & M Systems Co Display device having an array of movable display elements
FR2460532A1 (fr) * 1979-07-05 1981-01-23 Vandeputte Fils & Cie Aimant permanent pour element bistable et element bistable et unites de visualisation de donnees pourvues d'au moins un tel element

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0058247B1 (de) * 1981-02-09 1985-10-23 GebràœDer Sulzer Aktiengesellschaft Verfahren zur anaeroben Reinigung von mit organischen Stoffen belasteten Flüssigkeiten und Anlage zur Durchführung des Verfahrens
FR2627307A1 (fr) * 1988-02-17 1989-08-18 Erfi Sarl Dispositif bistable electromagnetique
US6960923B2 (en) 2001-12-19 2005-11-01 Formfactor, Inc. Probe card covering system and method
US7128587B2 (en) 2001-12-19 2006-10-31 Formfactor, Inc. Probe card covering system and method
US7202682B2 (en) 2002-12-20 2007-04-10 Formfactor, Inc. Composite motion probing
US7868632B2 (en) 2002-12-20 2011-01-11 Formfactor, Inc. Composite motion probing
US7463043B2 (en) 2004-02-18 2008-12-09 Formfactor, Inc. Methods of probing an electronic device
US7701243B2 (en) 2004-02-18 2010-04-20 Formfactor, Inc. Electronic device testing using a probe tip having multiple contact features

Also Published As

Publication number Publication date
CA1158435A (fr) 1983-12-13
JPS5778082A (en) 1982-05-15
DE3171798D1 (en) 1985-09-19
EP0046091A3 (en) 1982-03-17
US4394652A (en) 1983-07-19
EP0046091B1 (de) 1985-08-14
ATE14950T1 (de) 1985-08-15
FR2487098B1 (de) 1984-07-13
FR2487098A1 (fr) 1982-01-22

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