EP0046091B1 - Dispositif de visualisation de données - Google Patents

Dispositif de visualisation de données Download PDF

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Publication number
EP0046091B1
EP0046091B1 EP81400826A EP81400826A EP0046091B1 EP 0046091 B1 EP0046091 B1 EP 0046091B1 EP 81400826 A EP81400826 A EP 81400826A EP 81400826 A EP81400826 A EP 81400826A EP 0046091 B1 EP0046091 B1 EP 0046091B1
Authority
EP
European Patent Office
Prior art keywords
rotors
group
poles
electromagnet
colour
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.)
Expired
Application number
EP81400826A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0046091A2 (fr
EP0046091A3 (en
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/fr
Publication of EP0046091A3 publication Critical patent/EP0046091A3/fr
Application granted granted Critical
Publication of EP0046091B1 publication Critical patent/EP0046091B1/fr
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; EP-A-22 395 (FR-A-2460532, AT-E-4073). 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 planar, it must have, if only during its actuation, an important place 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 accordance with the current claim 1.
  • the bar 11 can therefore be temporarily supplied so that the end 17 or 18 of each of its branches 19, 20 can choose between a North or South pole.
  • poles of the electromagnet are located in the plane perpendicular 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 are different from each other and diametrically opposite.
  • This type of permanent magnet more fully described in application FR-A 2,460,532, in particular has the aim, not of forming a joining cam as in US patent 3,638,550, but of preventing 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 independent contour. that of the indication to appear.
  • points 26 which have to be read at a great distance, those which have a very large diameter or width, each themselves consist of several distinct colored areas forming 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 as shown in the drawing.
  • 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 group of bodies, 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)
  • Indicating And Signalling Devices For Elevators (AREA)
  • Control Of El Displays (AREA)
EP81400826A 1980-07-18 1981-05-25 Dispositif de visualisation de données Expired EP0046091B1 (fr)

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
FR8016076 1980-07-18
FR8016076A FR2487098A1 (fr) 1980-07-18 1980-07-18 Dispositif de visualisation de donnees

Publications (3)

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

Family

ID=9244367

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81400826A Expired EP0046091B1 (fr) 1980-07-18 1981-05-25 Dispositif de visualisation de données

Country Status (7)

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

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3172732D1 (en) * 1981-02-09 1985-11-28 Sulzer Ag Process and apparatus for the anaerobic purification of liquids containing organic substances
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
FR2627307B1 (fr) * 1988-02-17 1993-01-29 Erfi Sarl Dispositif bistable electromagnetique
IT1244552B (it) * 1990-12-12 1994-07-15 Solari Udine Spa Cella elementare aggregabile per la realizzazione di visualizzatori a matrice di punti
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
US7218127B2 (en) 2004-02-18 2007-05-15 Formfactor, Inc. Method and apparatus for probing an electronic device in which movement of probes and/or the electronic device includes a lateral component

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0022395A1 (fr) * 1979-07-05 1981-01-14 VANDEPUTTE Fils & Cie. S.A. Aimant permanent pour élément bistable et élément bistable et unités de visualisation de données pourvues d'au moins un tel élément

Family Cites Families (4)

* 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

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0022395A1 (fr) * 1979-07-05 1981-01-14 VANDEPUTTE Fils & Cie. S.A. Aimant permanent pour élément bistable et élément bistable et unités de visualisation de données pourvues d'au moins un tel élément
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

Also Published As

Publication number Publication date
EP0046091A2 (fr) 1982-02-17
ATE14950T1 (de) 1985-08-15
DE3171798D1 (en) 1985-09-19
FR2487098A1 (fr) 1982-01-22
JPS5778082A (en) 1982-05-15
EP0046091A3 (en) 1982-03-17
CA1158435A (fr) 1983-12-13
FR2487098B1 (enrdf_load_stackoverflow) 1984-07-13
US4394652A (en) 1983-07-19

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