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EP0095805A2 - Installation for decoding the position of a symbol on a moving part with regard to a fixed reference - Google Patents

Installation for decoding the position of a symbol on a moving part with regard to a fixed reference Download PDF

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Publication number
EP0095805A2
EP0095805A2 EP83200722A EP83200722A EP0095805A2 EP 0095805 A2 EP0095805 A2 EP 0095805A2 EP 83200722 A EP83200722 A EP 83200722A EP 83200722 A EP83200722 A EP 83200722A EP 0095805 A2 EP0095805 A2 EP 0095805A2
Authority
EP
European Patent Office
Prior art keywords
aforementioned
movable part
installation
zones
metal
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Withdrawn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
EP83200722A
Other languages
German (de)
French (fr)
Other versions
EP0095805A3 (en
Inventor
Joseph Teney
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.)
Sirmo SA
Original Assignee
Sirmo 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
Priority claimed from BE0/208227A external-priority patent/BE893360A/en
Application filed by Sirmo SA filed Critical Sirmo SA
Publication of EP0095805A2 publication Critical patent/EP0095805A2/en
Publication of EP0095805A3 publication Critical patent/EP0095805A3/en
Withdrawn legal-status Critical Current

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    • 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
    • G09F11/02—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 secured to rotating members, e.g. drums, spindles
    • G09F11/10—Electrical control therefor

Definitions

  • the invention relates to an installation allowing the decoding of the position of a symbol or group of symbols appearing on a mobile part with respect to a marker, when the mobile part is stopped or in motion.
  • the object of the invention finds its application in all the fields where one or more mobile elements carrying or not inscriptions such as symbols move relative to a fixed reference mark and where the position of these inscriptions relative to these reference marks must be able be decoded in a reliable and instantaneous manner avoiding the use of means calling upon mechanisms which either can be out of balance, or are continuously subjected to wear.
  • the invention therefore aims to provide a technically simple solution, applicable to any mechanism of which one or more parts are mobile and in which it is desired to know the position relative to a reference when the mobile part considered is stopped or in movement.
  • the installation according to the invention comprises, for each movable part, one or more proximity detectors which are fixed relative to said reference mark, itself fixed relative to the frame of the installation, while the aforementioned movable part bears, opposite certain symbols or group of symbols, an area of a specific material whose presence can be signaled by the aforementioned proximity detectors.
  • the surface of the aforementioned movable part consists of a material which is not electrically conductive, the aforementioned zone carried by the surface that the aforementioned movable part then preferably consists of a metallic material.
  • the surface of the aforementioned movable part is made of a metallic material, the aforementioned zone carried by said aforementioned movable part then being made of a metallic material of a different nature from that of which the surface of said part is made mobile.
  • the invention also relates to a method of producing a strip of material having zones offering different electrical or magnetic conductivity characteristics.
  • FIG. 1 schematically represents a drum whose surface of revolution includes symbols whose position, when the drum is stopped or in motion, must be determined relative to sensors which are fixed relative to the frame of the installation in which the drum turns.
  • FIG. 2 also shows schematically a decoding table for five different positions of the drum relative to the five sensors.
  • one or more drums are mounted, the surface of revolution of which carries subdivisions which correspond to the sectors 1 to 20 shown diagrammatically in FIG. 1. Certain parts of the surface of revolution corresponding to certain sectors carry symbols. This is how any symbols or inscriptions appear on the surface of revolution at the level of the following sectors: 1, 2, 4, 5, 6, 9, 10, 14, 19 and 20.
  • the reference with respect to which it is desired to decode the position of a symbol may be a light, a window, a line or any other means of identification.
  • the reference is represented by the line R.
  • the sensors they are designated by the letters A, B, C, D, E. They are, of course, fixed relative to the installation.
  • the mobile parts can be rectilinear elements performing, for example, a linear movement opposite the reference R cited above.
  • sensors A, B, C, D, E will be arranged on a straight line.
  • the sensors are actually proximity detectors.
  • Such proximity detectors reacting, for example, to a modification of the magnetic coupling between two elements can advantageously be constituted by devices sold, for example by the company HONEYWELL under the reference 921.C5.
  • the surface of revolution of the drum can be an electrically non-conductive material, for example, a plastic material.
  • the zones which will influence the proximity detectors will be metallized zones.
  • a method of metallizing a strip of plastic material can consist, for example, of a series of operations which consist in immersing the strip in question in a hydrofluoric and phosphoric acid bath, in masking the zones intended for remain free of metal, micro-blast the areas to be metallized and spray molten metal onto these areas.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Coating With Molten Metal (AREA)
  • Power-Operated Mechanisms For Wings (AREA)
  • Transmission And Conversion Of Sensor Element Output (AREA)

Abstract

The installation for decoding the position of a symbol or group of symbols appearing on a part moving relative to a reference, when the said moving part is at rest or in motion, comprises, for each moving part, one or more proximity detectors (A, E) which are fixed relative to the said reference (R), itself fixed relative to the frame of the installation, whereas the abovementioned moving part carries, opposite certain symbols or groups of symbols (1, 2, 4, 5, 6, 9, 10, 14, 19, 20), a region of a specified material whose presence can be signalled by the abovementioned proximity detectors (A - E). <IMAGE>

Description

L'invention concerne une installation permettant le décodage de la position d' un symbole ou groupe de symboles figurant sur une partie mobile par rapport à un repère, lorsque la partie mobile est à l'arrêt ou en mouvement.The invention relates to an installation allowing the decoding of the position of a symbol or group of symbols appearing on a mobile part with respect to a marker, when the mobile part is stopped or in motion.

L'objet de l'invention trouve son application dans tous les domaines où un ou plusieurs éléments mobiles portant ou non des inscriptions telles que des symboles se déplacent par rapport à un repère fixe et où la position de ces inscriptions par rapport à ces repèresdoit pouvoir être décodée d'une manière fiable et instantanée en évitant l'usage de moyens faisant appel à des mécanismes qui soit peuvent se dérégler, soit sont d'une manière continue soumis à l'usure.The object of the invention finds its application in all the fields where one or more mobile elements carrying or not inscriptions such as symbols move relative to a fixed reference mark and where the position of these inscriptions relative to these reference marks must be able be decoded in a reliable and instantaneous manner avoiding the use of means calling upon mechanisms which either can be out of balance, or are continuously subjected to wear.

L'invention visé donc à fournir une se- lution techniquement simple, applicable à tout mécanisme dont une ou plusieurs parties sont mobiles et dans lesquelles on désire connaître la position par rapport à un repère lorsque la partie mobile considérée est à l'arrét ou en mouvement.The invention therefore aims to provide a technically simple solution, applicable to any mechanism of which one or more parts are mobile and in which it is desired to know the position relative to a reference when the mobile part considered is stopped or in movement.

A cet effet, l'installation selon l'invention comprend, pour chaque partie mobile, un ou plusieurs détecteurs de proximité qui sont fixes par rapport audit repère, lui-même fixe par rapport au bâti de l'installation, tandis que la partie mobile précitée porte, en regard de certains symboles ou groupe de symboles, une zone en une matière déterminée dont la présence peut être signalée par les détecteurs de proximité précités.For this purpose, the installation according to the invention comprises, for each movable part, one or more proximity detectors which are fixed relative to said reference mark, itself fixed relative to the frame of the installation, while the aforementioned movable part bears, opposite certain symbols or group of symbols, an area of a specific material whose presence can be signaled by the aforementioned proximity detectors.

Selon une première forme de réalisation, la surface de la partie mobile précitée est constituée par une matière non conductrice de l'électricité, la zone précitée portée par la surface ce la partie mobile précitée étant alors constituée de préférence par une matière métallique.According to a first embodiment, the surface of the aforementioned movable part consists of a material which is not electrically conductive, the aforementioned zone carried by the surface that the aforementioned movable part then preferably consists of a metallic material.

Selon une autre forme de réalisation, la surface de la partie mobile précitée est constituée par une matière métallique, la zone précitée portée par ladite partie mobile précitée étant alors constituée par une matière métallique de nature différente de celle dont est constituée la surface de ladite partie mobile.According to another embodiment, the surface of the aforementioned movable part is made of a metallic material, the aforementioned zone carried by said aforementioned movable part then being made of a metallic material of a different nature from that of which the surface of said part is made mobile.

L'invention concerne aussi un procédé de réalisation d'une bande de matière présentant des zones offrant des caractéristiques de conductivité électrique ou magnétique différentes.The invention also relates to a method of producing a strip of material having zones offering different electrical or magnetic conductivity characteristics.

D'autres détails et avantages de l'invention ressortiront de la description qui sera donnée ci-après d'une installation permettant le décodage de la position d'un symbole figurant sur une surface mobile par rapport à un repère, selon l'invention. Cette description n'est donnée qu'à titre d'exemple et ne limite pas l'invention. Les notations de référence se rapportent aux figures annexées.Other details and advantages of the invention will emerge from the description which will be given below of an installation allowing the decoding of the position of a symbol appearing on a movable surface with respect to a marker, according to the invention. This description is given only for example and does not limit the invention. The reference notations refer to the appended figures.

La figure 1 représente schématiquement un tambour dont la surface de révolution comporte des symboles dont la position, lorsque le tambour est à l'arrêt ou en mouvement, doit être déterminée par rapport à des capteurs qui sont fixes par rapport au bâti de l'installation dans lequel tourne le tambour.FIG. 1 schematically represents a drum whose surface of revolution includes symbols whose position, when the drum is stopped or in motion, must be determined relative to sensors which are fixed relative to the frame of the installation in which the drum turns.

La figure 2 représente, également schématiquement, un tableau de décodage pour cinq positions différentes du tambour par rapport aux cinq capteurs.FIG. 2 also shows schematically a decoding table for five different positions of the drum relative to the five sensors.

Dans l'installation .représentée à titre d'exemple sont montés un ou plusieurs tambours dont la surface de révolution porte des subdivisions qui correspondent aux secteurs 1 à 20 représentés schématiquement à la figure 1. Certaines parties de la surface de révolution correspondant à certains secteurs portent des symboles. C'est ainsi que des symboles ou des inscriptions quelconques figurent sur la surface de révolution à hauteur des secteurs suivants : 1, 2, 4, 5, 6, 9, lO, 14, 19 et 20.In the installation shown as an example, one or more drums are mounted, the surface of revolution of which carries subdivisions which correspond to the sectors 1 to 20 shown diagrammatically in FIG. 1. Certain parts of the surface of revolution corresponding to certain sectors carry symbols. This is how any symbols or inscriptions appear on the surface of revolution at the level of the following sectors: 1, 2, 4, 5, 6, 9, 10, 14, 19 and 20.

Le repère par rapport auquel on désire déco der la position d'un symbole peut être une lumière, une fenêtre, un trait ou tout autre moyen de repérage. A la figure 1 le repère est représenté par le trait R.The reference with respect to which it is desired to decode the position of a symbol may be a light, a window, a line or any other means of identification. In Figure 1 the reference is represented by the line R.

Quant aux capteurs ils sont désignés par les lettres A, B, C, D, E. Ils sont, bien entendu, fixes par rapport à l'installation.As for the sensors, they are designated by the letters A, B, C, D, E. They are, of course, fixed relative to the installation.

Il est entendu que dans une installation de type différent, les parties mobiles peuvent être des éléments rectilignes effectuant, par exemple, un déplacement linéaire en regard du repère R cité plus haut.It is understood that in an installation of a different type, the mobile parts can be rectilinear elements performing, for example, a linear movement opposite the reference R cited above.

Dans un tel cas, les capteurs A, B, C, D, E seront disposés sur une droite.In such a case, sensors A, B, C, D, E will be arranged on a straight line.

Les capteurs sont en réalité des détecteurs de proximité. De tels détecteurs de proximité réagissant, par exemple, à une modification du couplage magnétique entre deux éléments peuvent avantageusement être constitués par des appareils commercialisés, par exemple par la firme HONEYWELL sous la référence 921.C5.The sensors are actually proximity detectors. Such proximity detectors reacting, for example, to a modification of the magnetic coupling between two elements can advantageously be constituted by devices sold, for example by the company HONEYWELL under the reference 921.C5.

De tels détecteurs de proximité agissant en fonction d'une modification du circuit magnétique entre deux éléments permettent évidemment de nombreuses formes de réalisation.Such proximity detectors acting according to a modification of the magnetic circuit between two elements obviously allow many embodiments.

Dans une première forme de réalisation, la surface de révolution du tambour peut être une matière non conductrice d'électricité, par exemple , une matière plastique. Dans un tel cas,les zones qui influenceront les détecteurs de proximité seront des zones métallisées.In a first embodiment, the surface of revolution of the drum can be an electrically non-conductive material, for example, a plastic material. In such a case, the zones which will influence the proximity detectors will be metallized zones.

Un procédé de métallisation d'une bande de matière plastique peut consister par exemple dans une série d'opérations qui consistent à plonger la bande en question dans un bain d'acide fluorhydrique et phosphorique, à masquer les zones destinées à demeurer exemptes de métal, à procéder au microbillage des zones à métalliser et à projeter sur ces zones du métal en fusion.A method of metallizing a strip of plastic material can consist, for example, of a series of operations which consist in immersing the strip in question in a hydrofluoric and phosphoric acid bath, in masking the zones intended for remain free of metal, micro-blast the areas to be metallized and spray molten metal onto these areas.

Il est évident cependant que si la bande elle-même était métallique, il suffirait de déposer sur des zones déterminées un métal différent de celui dont elle est constituée.It is obvious, however, that if the strip itself was metallic, it would suffice to deposit on specific areas a metal different from that of which it is made up.

Au lieu de projeter du métal en fusion sur les zones déterminées, on peut évidemment procéder aussi au nickelage, au chromage, ou au dépôt de métal par tout autre procédé.Instead of projecting molten metal onto the determined zones, it is obviously also possible to nickel-plating, chromium-plating or depositing metal by any other process.

Il est évident que l'invention n'est pas limitée aux formes d'exécution décrites ci-dessus et que bien des modifications pourraient y être apportées sans sortir du cadre de la présente demande de brevet.It is obvious that the invention is not limited to the embodiments described above and that many modifications could be made without departing from the scope of this patent application.

Claims (7)

1. Installation permettant le décodage de la position d'un symbole ou groupe de symboles figurant sur une partie mobile par rapport à un repère, lorsque ladite partie mobile est à l'arrêt ou en mouvement, caractérisée en ce qu'elle comprend, pour chaque partie mobile, un ou plusieurs détecteurs (A-E) qui sont fixes par rapport audit repère (R), lui-même fixe par rapport au bâti de l'installation, tandis que la partie mobile précitée porte, en regard de certains symboles ou groupe de symboles (1, 2, 4, 5, 6, 9,10, 14, 19,20), une zone en une matière déterminée dont la présence peut être signalée par les détecteurs de proximité précités.1. Installation allowing the decoding of the position of a symbol or group of symbols appearing on a mobile part with respect to a reference, when said mobile part is stopped or in motion, characterized in that it comprises, for each movable part, one or more detectors (AE) which are fixed relative to said reference (R), itself fixed relative to the frame of the installation, while the aforementioned movable part bears, opposite certain symbols or group of symbols (1, 2, 4, 5, 6, 9, 10, 14, 19, 20), an area of a determined material whose presence can be indicated by the aforementioned proximity sensors. 2. Installation selon la revendication 1, caractériséeen ce que lorsque la surface de la partie mobile précitée est constituée par une matière non conductrice de l'électricité, la zone précitée, portée par la surface de la partie mobile précitée, est constituée de préférence par une matière métallique.2. Installation according to claim 1, characterized in that when the surface of the aforementioned movable part consists of a material which does not conduct electricity, the aforementioned zone, carried by the surface of the aforementioned movable part, is preferably constituted by a metallic material. 3. Installation selon la revendication 1, caractérisée en ce que,lorsque la surface de la partie mobile précitée est constituée par une matière métallique, la zone précitée portée par ladite partie mobile est alors constituée par une matière métallique de nature différente de celle dont est constituée ladite surface de la partie mobile.3. Installation according to claim 1, characterized in that, when the surface of the aforementioned movable part is constituted by a metallic material, the aforementioned zone carried by said movable part is then constituted by a metallic material of a different nature from that of which is constituted said surface of the movable part. 4. Installation selon l'une quelconque des revendications 1 et 2, caractérisée en ce que la surface des parties mobiles précitées est constituée par une matière synthétique ou toute autre matière.4. Installation according to any one of claims 1 and 2, characterized in that the surface of the aforementioned movable parts is consti killed by synthetic material or any other material. 5. Procédé de réalisation d'une bande de matière présentant des zones offrant des caractéristiques différentes, caractérisé en ce qu'on trempe la bande précitée dans un bain d'acide fluorhydrique et phosphorique, on masque les zones destinées à demeurer exemptes de matières présentant la capacité différente précitée, on procède au microbillage des zones auxquelles on veut attribuer des caractéristiques magnétiques différentes et on projette du métal en fusion, ou un métal différent de celui dont sont constituées les zones masquées, sur les zones non masquées.5. A method of producing a strip of material having zones offering different characteristics, characterized in that the above-mentioned strip is soaked in a bath of hydrofluoric and phosphoric acid, the zones intended to remain free of materials having the aforementioned different capacity, one proceeds to the micro-ballooning of the zones to which one wishes to assign different magnetic characteristics and one projects molten metal, or a metal different from that of which the masked zones are made, on the non-masked zones. 6. Procédé selon la revendication 5, caractérisé en ce que l'on choisit de l'étain, du zinc ou tout autre métal comme métal à projeter.6. Method according to claim 5, characterized in that one chooses tin, zinc or any other metal as the metal to be sprayed. 7. Procédé de réalisation d'une bande de matière non conductrice présentant des zones métalliques caractérisé en ce que les zones à métalliser sont soumises à un procédé de chromage, de nickelage ou équivalent.7. A method of producing a strip of non-conductive material having metal areas characterized in that the areas to be metallized are subjected to a chromium-plating, nickel-plating or equivalent process.
EP83200722A 1982-05-28 1983-05-20 Installation for decoding the position of a symbol on a moving part with regard to a fixed reference Withdrawn EP0095805A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
BE0/208227A BE893360A (en) 1982-05-28 1982-05-28 Position indexing of symbol(s) on movable component - using proximity detectors to detect zones of different material
BE208227 1982-05-28

Publications (2)

Publication Number Publication Date
EP0095805A2 true EP0095805A2 (en) 1983-12-07
EP0095805A3 EP0095805A3 (en) 1985-10-09

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EP83200722A Withdrawn EP0095805A3 (en) 1982-05-28 1983-05-20 Installation for decoding the position of a symbol on a moving part with regard to a fixed reference

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2163260A (en) * 1984-08-16 1986-02-19 Boge Gmbh Determining the travel of a piston relative to a cylinder
GB2223370A (en) * 1988-10-03 1990-04-04 Pentacon Dresden Veb Coding switch
US5215903A (en) * 1983-08-04 1993-06-01 Ciba-Geigy Corporation Process for the maintenance and proliferation of defective non-infectious virus genomes in proliferating plant materials

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3467957A (en) * 1965-11-22 1969-09-16 Bendix Corp Electrostatically digitized tape display device
FR2337384A1 (en) * 1975-12-30 1977-07-29 Westinghouse Electric Corp COUNTER DIAL ENCODER FOR REMOTE READING
US4163879A (en) * 1977-12-01 1979-08-07 Amerace Corporation Selector switch
DE3035774A1 (en) * 1980-09-23 1982-05-27 Robert Bosch Gmbh, 7000 Stuttgart Digital position transducer - has series of markings on one part generating bit patterns in row of detectors
GB2089604A (en) * 1980-11-17 1982-06-23 Hitachi Ltd Rotary disc type magnetic encoder

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3467957A (en) * 1965-11-22 1969-09-16 Bendix Corp Electrostatically digitized tape display device
FR2337384A1 (en) * 1975-12-30 1977-07-29 Westinghouse Electric Corp COUNTER DIAL ENCODER FOR REMOTE READING
US4163879A (en) * 1977-12-01 1979-08-07 Amerace Corporation Selector switch
DE3035774A1 (en) * 1980-09-23 1982-05-27 Robert Bosch Gmbh, 7000 Stuttgart Digital position transducer - has series of markings on one part generating bit patterns in row of detectors
GB2089604A (en) * 1980-11-17 1982-06-23 Hitachi Ltd Rotary disc type magnetic encoder

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5215903A (en) * 1983-08-04 1993-06-01 Ciba-Geigy Corporation Process for the maintenance and proliferation of defective non-infectious virus genomes in proliferating plant materials
GB2163260A (en) * 1984-08-16 1986-02-19 Boge Gmbh Determining the travel of a piston relative to a cylinder
GB2223370A (en) * 1988-10-03 1990-04-04 Pentacon Dresden Veb Coding switch

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