Classifications

• • G—PHYSICS
  • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
  • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
  • G09F11/00—Indicating arrangements for variable information in which the complete information is permanently attached to a movable support which brings it to the display position
  • G09F11/30—Indicating arrangements for variable information in which the complete information is permanently attached to a movable support which brings it to the display position the display elements being fed one by one from storage place to a display position
  • G09F11/34—Indicating arrangements for variable information in which the complete information is permanently attached to a movable support which brings it to the display position the display elements being fed one by one from storage place to a display position the feeding means comprising electromagnets

Definitions

• the invention relates to a signal display element for the display of more, than two informations for signal displays with electromagnetically excited tilting plates, having baseplates, tilting plates supported in bearings and displaced axially in relation to each other, provided with at least one magnetic part and the magnetic axes of the magnetic parts are normal to the plane of the tilting plates, furtheron, bipolarly excitable electromagnets are contained which are well suitable for the control of the tilting plates; on the ends of the electromagnet core facing the baseplate guide plates being parallel with the baseplate are arranged.
• signal display elements for the visual display of numbers, signals, symbols used to be applied as e.g. that according to the Hungarian Patent HU-PS 157 250, which are provided with plates having magnetic parts and to be tilted by electromagnetic control and in such a manner that under the influence of the tilting motion one or the other face of the plates becomes visible, the plates can be tilted around a lateral edge or another edge being parallel with the lateral edge; the two surface of the tilting plates are carrying different informations, e.g. they are differently coloured, while the part of the baseplate which became visible, carries an identical information, that means, that it has the same colour as the surface of tilting plate which became visible.
• the tilting plates are made - at least partly - of a permanent magnetic material, and the magnetic axis thereof runs preferably perpendicular to the plane of the tilting plates. Accordingly, by the application of said signal display element two different informations can be displayed. Furtheron, an element based on the principle of the previously described signal display is known, which is suitable for the display of more, than two informations.
• This type of signal display element is specified in the Hungarian Patent HU-PS 158 828.
• the axes of rotation of the signal display elements are not fixedly supported in bearings, but may move guided in the inside of the U-shaped (hairpin) bearings, similarly, as books respectively covers provided with exchangeable pages.
• a plurality of tilting plates can be arranged in one tilting element and the number of displaying information is larger by one, than the number of the tilting plates (the same relates to the number of colours).
• the thickness of the single tilting plates is determined by necessary thickness (the required magnetic energy content) of the magnets with a magnetic axis being advantageously normal to the plane of the tilting plates.
• the latter solution containing more tilting plates requires as many field coils, as the number of the tilting plates contained in the signal display element.
• the invention is based on the recognition, in so far as by the properly coded control of the field coils, in particular, if a plurality of tilting plates are applied in one signal display element, the number of the field coils can be considerably less, than the number of the tilting plates.
• the essence of the invention lies in that the guide plates belonging to one signal display element are arranged with an axial displacement, while the number of the tilting plates is larger by one, than the number of the guide plates, however, it is less at least by one, than power of two with an exponent corresponding to the number of the electromagnet cores.
• figure 1 is the axoncmetric scheme of an embodiment of the invention with five tilting plates and three guide plates
• figure 2 illustrates the possibility of "turning the pages" of the tilting plates in the signal display element according to the embodiment of figure 1, by changing the excitation of the guide plates
• figure 3 illustrates a third possible embodiment of the invention with three guide plates and two field coils.
• the tilting plates 3 are supported in bearings 2 in a rotatable manner.
• the magnetic parts 4 are arranged, which are displaced in relation to each other in direction of the axis of rotation of the tilting plates 3, the magnetic axes of said magnetic parts are normal to the plane of the tilting plates 3.
• bipolarly excitable electromagnets are arranged, which are well suitable for the control of the tilting plates 3, while on the end of the cores of the electromagnets 5 facing the baseplate the guide paltes 6 - being preferably parallel with the baseplate 1 - are arranged.
• the cores of the electromagnet 5 field coils 7 are to be found.
• Figure 2 shows the view of the tilting plates according to figure 1, being parallel with the baseplate 1 and normal to the axis of the tilting plates 3; on the bottom of the figure change of the polarity of the guide plates 6 is to be seen, in the single phases of turning the tilting plates 3 from one stable condition into the other stable condition.
• two tilting plates 3 each belong to the two extreme guide plates 6, while a separate tilting plate 3 is ordered to the central guide plate 6, in such a manner the number of the guide plates amounts to three.
• the central tilting plate 3 is ordered to thecentral guide plate 6, however, not the adjacent tilting plates 3 are ordered to the extreme guide plates 6.
• the magnetic parts on the tilting plates 3 are arranged so, that a) in any stable position the polarity of the magnetic parts 4 on two adjacent tilting plates 3 is of opposite direction, b) in any stable position the magnetic parts 4 on any two adjacent tilting plates 3 are staying in a magnetic relation with two different guide plates 6, c) out of the guide plates 6 at least one guide plate 6 is staying in a magnetic relation with odd-numbered tilting plate 3 and said guide plate 6 is arranged among the other guide plates 6 so about in the centre, d) polarity of the magnetic parts 4 following one another axially is of opposite sign.
• the guide plate 6 A is magnetically connected to the tilting plates 3 a and 3 d , the guide plate 6 B to the tilting plate 3 c and the guide plate 6 C to the tilting plates 3 b and 3 c .
• the guide plate 6 A has a north-polarity, while the guide plates 6 B and 6p have south-polarities.
• the topmost tilting plate 3 c can be tilted so, if the polarity of the guide plate 6 staying in a magnetic relation therewith is changed. Now the guide plate 6 C has a north-polarity, accordingly it repulses the tilting plate 3 c , while the other tilting plate 3 c staying in a magnetic connection with the guide plate 6 C will be attracted.
• the guide plate 6 A For tilting the next tilting plate 3 d the guide plate 6 A being magnetically connected thereto is to be repolarized. Accordingly, the guide plate 6 A will be south-polarized, simultaneously the other tilting plate 3 a connected to the guide plate 6 A , becomes attracted, As the guide plates 6 are arranged symmetrically with the axis of rotation of the tilting plates 3, on the other side the tiltinga plates 3 c and 3 d . become attracted.
• the central tilting plate 3 c is tilted by reversing the polarity of the guide plate 6 B staying in a magnetic connection therewith. On the other side there are now three tilting plates 3 e , 3 d , 3 c and all of them are in an attracted state.
• the last tilting plate 3 a is tilted so, that the polarity of the guiding plate 6 A being in magnetic contact therewith is reversed.
• the tilting plate 3 d - the second from the bottom - is repulsed on the other side.
• this repulsion cannot come to force, as the tilting of the tilting plate 3 a keeps the number of the tilting plates 3 in prevalence.
• Figure 3 illustrates an embodiment, with which the number of the field coils 7 is by one less, than the number of the guide plate 6 respectively the number of the electromagnet cores 5 belonging to the guide plates 6.
• This can be achieved - in sense of the example here described - in such a manner that the cores 5 or at least a part of the cores 5 are overbridged by a coupling member 8 to be fitted closely to the cores 5, made of a soft magnetic material and ensuring the division of the magnetic core at the end of the cores 5 lying opposite to the baseplate 1.
• the gores 5 are made of a hard magnetic material with repolarisable remanent magnetic induction.
• Guide plates 6 may be prepared of a soft magnetic material, while a soft magnetic material can be used for the cores 5 too, if they are not overbridged by the coupling member 8.
• the invention is not at all restricted to the solutions according to the examples, but thev extend to all teh solutions contained in the claim, in particular in the main claim.

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• Physics & Mathematics (AREA)
• Electromagnetism (AREA)
• General Physics & Mathematics (AREA)
• Engineering & Computer Science (AREA)
• Theoretical Computer Science (AREA)
• Devices For Indicating Variable Information By Combining Individual Elements (AREA)
• Steering Controls (AREA)
• Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)

Applications Claiming Priority (2)

Publications (1)

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• 1985
  • 1985-11-19 HU HU854389A patent/HU193353B/hu not_active IP Right Cessation
• 1986
  • 1986-11-14 DE DE19863638895 patent/DE3638895A1/de active Granted
  • 1986-11-18 GB GB8627504A patent/GB2183389B/en not_active Expired - Fee Related
  • 1986-11-18 CA CA000523231A patent/CA1280892C/en not_active Expired - Lifetime
  • 1986-11-19 DD DD86296439A patent/DD260143A5/de not_active IP Right Cessation
  • 1986-11-19 AU AU66213/86A patent/AU6621386A/en not_active Abandoned
  • 1986-11-19 US US06/932,733 patent/US4775863A/en not_active Expired - Fee Related
  • 1986-11-19 BE BE0/217437A patent/BE905786A/fr not_active IP Right Cessation
  • 1986-11-19 EP EP86906913A patent/EP0245421B1/en not_active Expired
  • 1986-11-19 WO PCT/HU1986/000062 patent/WO1987003122A1/en active IP Right Grant
• 1987
  • 1987-07-17 SU SU874202886A patent/SU1679979A3/ru active

Non-Patent Citations (1)

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