DE3923967A1 - Braille writing module with piezoceramic-strip pin actuators - utilises horizontal displacement of cupped heads for raising and lowering pins arranged in matrix - Google Patents
Braille writing module with piezoceramic-strip pin actuators - utilises horizontal displacement of cupped heads for raising and lowering pins arranged in matrixInfo
- Publication number
- DE3923967A1 DE3923967A1 DE19893923967 DE3923967A DE3923967A1 DE 3923967 A1 DE3923967 A1 DE 3923967A1 DE 19893923967 DE19893923967 DE 19893923967 DE 3923967 A DE3923967 A DE 3923967A DE 3923967 A1 DE3923967 A1 DE 3923967A1
- Authority
- DE
- Germany
- Prior art keywords
- piezoceramic
- lifting head
- module according
- module
- pin
- 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
Links
- 239000011159 matrix material Substances 0.000 title claims abstract description 5
- 238000006073 displacement reaction Methods 0.000 title 1
- 241001422033 Thestylus Species 0.000 claims description 5
- 239000000919 ceramic Substances 0.000 claims description 2
- 230000015572 biosynthetic process Effects 0.000 claims 1
- 229920001169 thermoplastic Polymers 0.000 abstract 1
- 239000004416 thermosoftening plastic Substances 0.000 abstract 1
- 239000012190 activator Substances 0.000 description 8
- 239000000523 sample Substances 0.000 description 1
- 239000012815 thermoplastic material Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B21/00—Teaching, or communicating with, the blind, deaf or mute
- G09B21/001—Teaching or communicating with blind persons
- G09B21/003—Teaching or communicating with blind persons using tactile presentation of the information, e.g. Braille displays
- G09B21/004—Details of particular tactile cells, e.g. electro-mechanical or mechanical layout
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H57/00—Electrostrictive relays; Piezoelectric relays
Landscapes
- Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Audiology, Speech & Language Pathology (AREA)
- General Health & Medical Sciences (AREA)
- Business, Economics & Management (AREA)
- Physics & Mathematics (AREA)
- Educational Administration (AREA)
- Educational Technology (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- User Interface Of Digital Computer (AREA)
Abstract
Description
Die Erfindung benutzt piezokeramische Streifen zur Darstellung von taktiler Information, insbesondere von Blindenschrift in Braille-Code.The invention uses piezoceramic strips to represent tactile information, especially braille in braille code.
Mit Hilfe der piezokeramischen Streifen, welche bei der Anlegung von elektrischer Spannung eine Formveränderung erfahren, können auch Stellglieder (z. B. Schaltkontakte) bedient werden.With the help of the piezoceramic strips, which are used when applying electrical voltage can experience a change in shape, too Actuators (e.g. switch contacts) are operated.
Das Modul besteht aus zumindest einem Tastpunkt und ist aufgrund sei ner Anordnung in beliebiger Rasterung und für jedes gewünschte Format benutzbar. Für die Darstellung von Blindenschrift kann das Modul mit 2 × 4 Punkten ausgestattet werden.The module consists of at least one touch point and is due to be arrangement in any grid and for any desired format usable. The module can be used to display Braille 2 × 4 points.
Die taktile Information wird durch das Anheben und Absenken eines Stiftes übermittelt, welcher mittels eines piezokeramischen Streifens mit Hilfe eines Hebekopfes bewegt wird.The tactile information is obtained by raising and lowering one Pen transmitted, which by means of a piezoceramic strip is moved with the aid of a lifting head.
Durch das Anheben des Stiftes kann auch ein Stellglied betätigt wer den.An actuator can also be actuated by lifting the pin the.
Das Anheben und Absenken eines Stiftes wird mittels eines piezokerami schen Streifens, welcher entweder senkrecht unter dem Stift steht, oder waagerecht unter ihm liegt, durch die horizontale Bewegung eines Hebekopfes bewirkt.The lifting and lowering of a pen is done using a piezokerami strip, which is either perpendicular under the pin, or lying horizontally below it by the horizontal movement of one Lifting head causes.
Steht der Hebekopf mit seinem erhabenen Teil unter dem Stift, so ist der Stift angehoben, und somit gesetzt. Steht hingegen der erhabene Teil neben dem Stift, so senkt sich derselbe auf ein niedrigeres Niveau. Dies geschieht entweder durch die Gravitationskraft oder durch eine Feder, welche den Stift ständig nach unten drückt, und somit löscht.If the lifting head with its raised part is under the pin, then the pen raised, and thus set. However, the sublime stands Part next to the pen, so it descends to a lower one Level. This happens either through the gravitational force or through a spring that constantly pushes the pin down, and thus deletes.
Der Stift dient zur Darstellung von taktiler Information, z. B. in einer 2 × 4 Matrix zur Darstellung von Blindenschrift im Braille-Code. Der Stift kann ebenfalls zur Betätigung von Stellgliedern, z. B. für Schaltkontakte, benutzt werden. The pen is used to display tactile information, e.g. B. in a 2 × 4 matrix for displaying Braille in Braille code. The pin can also be used to actuate actuators, e.g. B. for Switch contacts can be used.
Fig. 1 zeigt einen vergrößert dargestellten Längsschnitt des Aus führungsbeispiels eines 8-Punkt-Braillemoduls, mit senk recht angeordneten piezokeramischen Streifen. Fig. 1 shows an enlarged longitudinal section of the exemplary embodiment from an 8-point Braille module, with vertically arranged piezoceramic strips.
Fig. 2 zeigt eine Draufsicht auf das Ausführungsbeispiel. Fig. 2 shows a plan view of the embodiment.
Fig. 3 zeigt eine Seitenansicht des Ausführungsbeispiels. Fig. 3 shows a side view of the embodiment.
Fig. 4 zeigt Beispiele des Hebekopfes:
a) ohne Verriegelungsmöglichkeit
b) mit Verriegelungsmöglichkeit. Fig. 4 shows examples of the lifting head:
a) without locking option
b) with locking option.
Fig. 5 zeigt das Funktionsprinzip am Beispiel des Hebekopfes:
a) ohne Verriegelungsmöglichkeit
b) mit Verriegelungsmöglichkeit.
Fig. 5 shows the principle of operation using the example of the lifting head:
a) without locking option
b) with locking option.
Das aus den Figuren ersichtliche Braille-Modul kann in der gezeigten Ausführungsform acht Punkte darstellen, und damit acht Taststifte pro Modul enthalten (siehe Fig. 2). Mehrere dieser Moduls können zeilen- und flächenweise aneinanderge reiht werden.The Braille module shown in the figures can represent eight points in the embodiment shown and thus contain eight styli per module (see FIG. 2). Several of these modules can be lined up in rows and areas.
Das Braille-Modul (siehe Fig. 1) weist einen Modulkörper (Nr. 1a) so wie eine ergonomische gestaltbare, abnehmbare Deckfläche (Nr. 2) auf, in welche Taststifte (Nr. 3) eingelassen sind.The Braille module (see Fig. 1) has a module body (No. 1 a) as well as an ergonomic, removable cover surface (No. 2 ), in which stylus pins (No. 3 ) are embedded.
Der Modulkörper ist aus einem thermoplastischen Werkstoff hergestellt und weist acht Kammern (Nr. 4) auf, die durch Trennstege (Nr. 5) von einander getrennt sind.The module body is made of a thermoplastic material and has eight chambers (No. 4 ), which are separated from each other by dividers (No. 5 ).
Die acht Kammern bilden an der Unter- und Oberseite einen geraden Ab schluß aus, in welchem die piezokeramischen Aktivatoren (Nr. 6) für die zugehörigen Taststifte (Nr. 3) fest eingespannt sind. An den Kup pen der Aktivatoren (Nr. 6) sind die jeweiligen Hebeköpfe (Nr. 7) starr verbunden.The eight chambers form a straight line from the top and bottom, in which the piezoceramic activators (No. 6 ) for the associated styli (No. 3 ) are firmly clamped. At the Kup pen of the activators (No. 6 ) the respective lifting heads (No. 7 ) are rigidly connected.
Wie man aus der Fig. 1 erkennt, sind die Aktivatoren (Nr. 6) sowie die Taststifte (Nr. 3) in den Löchern (Nr. 8 bei Fig. 2) vertikal an geordnet.As can be seen from Fig. 1, the activators (No. 6 ) and the stylus (No. 3 ) in the holes (No. 8 in Fig. 2) are arranged vertically.
Der gemäß der Darstellung Fig. 1 linke Taststift (Nr. 3) wird durch den linken Aktivator (Nr. 6) angesteuert. Die nach rechts versetzten weiteren Aktivatoren (Nr. 6) steuern entsprechend die in gleicher Wei se versetzten Taststifte an.The left stylus (No. 3 ) as shown in Fig. 1 is controlled by the left activator (No. 6 ). The other activators (No. 6 ), which are offset to the right, control the styli that are offset in the same way.
Die Spannungszufuhr zu den einzelnen Aktivatoren (Nr. 6) erfolgt über die an der Unterseite des Modulkörpers (Nr. 1a) angeordneten Kontakt stifte (Nr. 9), welche in eine Grundeinheit (nicht dargestellt) einge steckt werden können.The voltage supply to the individual activators (No. 6 ) takes place via the contact pins (No. 9 ) arranged on the underside of the module body (No. 1 a), which can be inserted into a basic unit (not shown).
Die in der Deckfläche (Nr. 2) eingelassenen Taststifte (Nr. 3) bewegen sich in einer Stiftkammer (Nr. 10), deren unterer Abschluß ein abnehm bares Zwischenplättchen (Nr. 11) bildet. The probe pins (No. 3 ) embedded in the top surface (No. 2 ) move in a pin chamber (No. 10 ), the lower end of which forms a removable intermediate plate (No. 11 ).
Die in der Stiftkammer (Nr. 10) enthaltene Feder (Nr. 12) gewähr leistet eine gesenkte Stiftposition im gelöschten Zustand, bei dem der erhabene Teil des Hebekopfes neben dem Stift steht.The spring (No. 12 ) contained in the pin chamber (No. 10 ) ensures a lowered pin position in the deleted state, in which the raised part of the lifting head is next to the pin.
Die in Fig. 4a und 4b dargestellten Beispiele der Hebeköpfe (Nr. 7) unterscheiden sich in ihrer Verriegelungseigenschaft.The examples of the lifting heads (No. 7 ) shown in FIGS . 4a and 4b differ in their locking properties.
Der Hebekopf (Nr. 7) nach Fig. 4a weist in Verbindung mit dem piezo keramischen Aktivator eine federnde Eigenschaft auf.The lifting head (No. 7 ) according to FIG. 4a has a resilient property in connection with the piezo-ceramic activator.
Das bedeutet, daß der Taststift (Nr. 3) bei mechanischer Belastung von oben federnd nachgibt, indem der Hebekopf (Nr. 7) durch die Feder steifigkeit des piezokeramischen Aktivators zur Seite weggedrückt wird.This means that the stylus (No. 3 ) yields resiliently under mechanical load from above by the lifting head (No. 7 ) being pushed aside by the spring stiffness of the piezoceramic activator.
Bei dem in Fig. 4b dargestellten Hebekopf (Nr. 7) wird bei mechani scher Belastung des Taststiftes (Nr. 3) der Hebekopf (Nr. 7) nicht zur Seite gedrückt, da der Taststift (Nr. 3) im gesetzten Zustand in der Vertiefung (Nr. 13) des erhabenen Teils des Hebekopfes (Nr. 7) aufliegt und somit verriegelt ist.In the lifting head shown in Fig. 4b (No. 7 ) with mechanical stress on the stylus (No. 3 ) the lifting head (No. 7 ) is not pushed to the side because the stylus (No. 3 ) in the set state in the Recess (No. 13 ) of the raised part of the lifting head (No. 7 ) rests and is therefore locked.
Fig. 5a und 5b zeigen das Funktionsprinzip der Anordnung sowohl im gesetzten Zustand (S) als auch im gelöschten Zustand (L). Fig. 5a and 5b illustrate the principle of operation of the arrangement, both in the set state (S) and in the erased state (L).
Claims (10)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19893923967 DE3923967A1 (en) | 1989-07-20 | 1989-07-20 | Braille writing module with piezoceramic-strip pin actuators - utilises horizontal displacement of cupped heads for raising and lowering pins arranged in matrix |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19893923967 DE3923967A1 (en) | 1989-07-20 | 1989-07-20 | Braille writing module with piezoceramic-strip pin actuators - utilises horizontal displacement of cupped heads for raising and lowering pins arranged in matrix |
Publications (2)
Publication Number | Publication Date |
---|---|
DE3923967A1 true DE3923967A1 (en) | 1991-01-31 |
DE3923967C2 DE3923967C2 (en) | 1991-06-27 |
Family
ID=6385425
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19893923967 Granted DE3923967A1 (en) | 1989-07-20 | 1989-07-20 | Braille writing module with piezoceramic-strip pin actuators - utilises horizontal displacement of cupped heads for raising and lowering pins arranged in matrix |
Country Status (1)
Country | Link |
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DE (1) | DE3923967A1 (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0620541A2 (en) * | 1993-04-16 | 1994-10-19 | Kgs Corporation | Tactile reading device |
EP0837437A1 (en) * | 1996-10-16 | 1998-04-22 | KGS Corporation | Graphic tactile cell |
NL1005093C2 (en) * | 1997-01-27 | 1998-07-29 | Turn Out N V | Braille cell and display consisting of several braille cells as well as a method for controlling several feeler pins of a braille cell. |
WO2002080134A1 (en) * | 2001-04-02 | 2002-10-10 | The Johns Hopkins University | Refreshable tactile computer display |
EP1396834A2 (en) * | 2002-09-05 | 2004-03-10 | KGS Corporation | Braille graphics cell module and braille graphics tactile apparatus |
DE102004046526A1 (en) * | 2004-09-23 | 2006-04-06 | Handy Tech Elektronik Gmbh | Tactile control system for controlling screen clipping, has piezoelectric control unit on which force exerted by scanning finger is transferred to generate voltage fluctuations that are selected so that fluctuations at unit are evaluated |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4133000C2 (en) * | 1991-10-04 | 1993-11-18 | Siegfried Dipl Ing Kipke | Piezo-hydraulic module for the implementation of tactile information |
DE4233524A1 (en) * | 1992-10-06 | 1994-04-07 | Otegau Ostthueringer Entwicklu | Braille pins bistable information display - provides coaxial guidance for soft-magnetic pins which are reciprocated by electromagnetic system contg. coils located between permanent magnets |
DE19547942A1 (en) * | 1995-12-21 | 1997-07-03 | Csk Edv Systemhaus Gmbh | Mechanical Braille display board |
Citations (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE7409913U (en) * | 1975-12-18 | Licentia Gmbh | Display device with tactile symbols | |
DE2833979A1 (en) * | 1977-08-05 | 1979-07-26 | Tretiakoff | DEVICE FOR THE RELIEF-LIKE SENSIBLE REPRODUCTION OF DATA ON A FIELD LIKE A DISPLAY |
DE2842916A1 (en) * | 1978-10-02 | 1980-04-17 | Licentia Gmbh | Braille character representation device - operates using array of pins selectively raised via respective electromagnetic coils |
US4283178A (en) * | 1979-07-02 | 1981-08-11 | Telesensory Systems, Inc. | Electromechanical braille cell |
DE3042390A1 (en) * | 1980-11-10 | 1982-06-16 | Metec Ingenieurgesellschaft Mbh Medizintechnik-Feinwerktechnik, 7000 Stuttgart | Device for displaying tactile information - has dusts moved out or in by electromagnets, for use on magnetic screen |
DE3044599A1 (en) * | 1980-11-27 | 1982-07-08 | Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt | EM controlled pins for braille system - have alternate pole pieces and magnets and slide inside holders containing EM coils |
US4403166A (en) * | 1980-12-19 | 1983-09-06 | Matsushita Electric Industrial Co., Ltd. | Piezoelectric relay with oppositely bending bimorphs |
US4647808A (en) * | 1984-08-30 | 1987-03-03 | Tokyo Juki Industrial Co., Ltd. | Piezoelectric actuator |
US4664632A (en) * | 1984-05-24 | 1987-05-12 | Oleg Tretiakoff | Tactile reading device |
DE3603020A1 (en) * | 1986-01-31 | 1987-08-06 | Siemens Ag | Piezoelectric relay |
DE3706286A1 (en) * | 1987-02-26 | 1988-09-08 | Friedrich Horst Ing Papenmeier | ELECTROMECHANICAL BRAILLE LINE |
-
1989
- 1989-07-20 DE DE19893923967 patent/DE3923967A1/en active Granted
Patent Citations (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE7409913U (en) * | 1975-12-18 | Licentia Gmbh | Display device with tactile symbols | |
DE2833979A1 (en) * | 1977-08-05 | 1979-07-26 | Tretiakoff | DEVICE FOR THE RELIEF-LIKE SENSIBLE REPRODUCTION OF DATA ON A FIELD LIKE A DISPLAY |
DE2842916A1 (en) * | 1978-10-02 | 1980-04-17 | Licentia Gmbh | Braille character representation device - operates using array of pins selectively raised via respective electromagnetic coils |
US4283178A (en) * | 1979-07-02 | 1981-08-11 | Telesensory Systems, Inc. | Electromechanical braille cell |
DE3042390A1 (en) * | 1980-11-10 | 1982-06-16 | Metec Ingenieurgesellschaft Mbh Medizintechnik-Feinwerktechnik, 7000 Stuttgart | Device for displaying tactile information - has dusts moved out or in by electromagnets, for use on magnetic screen |
DE3044599A1 (en) * | 1980-11-27 | 1982-07-08 | Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt | EM controlled pins for braille system - have alternate pole pieces and magnets and slide inside holders containing EM coils |
US4403166A (en) * | 1980-12-19 | 1983-09-06 | Matsushita Electric Industrial Co., Ltd. | Piezoelectric relay with oppositely bending bimorphs |
US4664632A (en) * | 1984-05-24 | 1987-05-12 | Oleg Tretiakoff | Tactile reading device |
US4647808A (en) * | 1984-08-30 | 1987-03-03 | Tokyo Juki Industrial Co., Ltd. | Piezoelectric actuator |
DE3603020A1 (en) * | 1986-01-31 | 1987-08-06 | Siemens Ag | Piezoelectric relay |
DE3706286A1 (en) * | 1987-02-26 | 1988-09-08 | Friedrich Horst Ing Papenmeier | ELECTROMECHANICAL BRAILLE LINE |
Cited By (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0620541A2 (en) * | 1993-04-16 | 1994-10-19 | Kgs Corporation | Tactile reading device |
EP0620541A3 (en) * | 1993-04-16 | 1996-07-31 | Kgs Kk | Tactile reading device. |
EP0837437A1 (en) * | 1996-10-16 | 1998-04-22 | KGS Corporation | Graphic tactile cell |
US5842867A (en) * | 1996-10-16 | 1998-12-01 | Kgs Corporation | Graphic tactile cell |
NL1005093C2 (en) * | 1997-01-27 | 1998-07-29 | Turn Out N V | Braille cell and display consisting of several braille cells as well as a method for controlling several feeler pins of a braille cell. |
WO1998036401A1 (en) * | 1997-01-27 | 1998-08-20 | Turn-Out N.V. | Braille cell and display comprising a plurality of braille cells, as well as a method for controlling a plurality of pins of a braille cell |
WO2002080134A1 (en) * | 2001-04-02 | 2002-10-10 | The Johns Hopkins University | Refreshable tactile computer display |
US7226291B2 (en) | 2001-04-02 | 2007-06-05 | The Johns Hopkins University | Refreshable tactile computer display |
EP1396834A2 (en) * | 2002-09-05 | 2004-03-10 | KGS Corporation | Braille graphics cell module and braille graphics tactile apparatus |
EP1396834A3 (en) * | 2002-09-05 | 2006-09-27 | KGS Corporation | Braille graphics cell module and braille graphics tactile apparatus |
DE102004046526A1 (en) * | 2004-09-23 | 2006-04-06 | Handy Tech Elektronik Gmbh | Tactile control system for controlling screen clipping, has piezoelectric control unit on which force exerted by scanning finger is transferred to generate voltage fluctuations that are selected so that fluctuations at unit are evaluated |
DE102004046526B4 (en) * | 2004-09-23 | 2007-07-05 | Handy Tech Elektronik Gmbh | Tactile control device |
Also Published As
Publication number | Publication date |
---|---|
DE3923967C2 (en) | 1991-06-27 |
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Legal Events
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OP8 | Request for examination as to paragraph 44 patent law | ||
8122 | Nonbinding interest in granting licenses declared | ||
D2 | Grant after examination | ||
8364 | No opposition during term of opposition | ||
8327 | Change in the person/name/address of the patent owner |
Owner name: BLISTAEHG GEMEINNUETZIGE GESELLSCHAFT FUER ELEKTRO |
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8381 | Inventor (new situation) |
Free format text: ZIMMERMANN, ROBERT, 7240 HORB, DE |
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8339 | Ceased/non-payment of the annual fee |