WO1989006599A1 - Appareil servant a imprimer des caracteres en braille dans du papier - Google Patents

Appareil servant a imprimer des caracteres en braille dans du papier Download PDF

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Publication number
WO1989006599A1
WO1989006599A1 PCT/NL1989/000003 NL8900003W WO8906599A1 WO 1989006599 A1 WO1989006599 A1 WO 1989006599A1 NL 8900003 W NL8900003 W NL 8900003W WO 8906599 A1 WO8906599 A1 WO 8906599A1
Authority
WO
WIPO (PCT)
Prior art keywords
paper
braille
projections
hammer
die
Prior art date
Application number
PCT/NL1989/000003
Other languages
English (en)
Inventor
Theodorus Adrianus Schuiling
Original Assignee
Daisy Systems Holland B.V.
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 Daisy Systems Holland B.V. filed Critical Daisy Systems Holland B.V.
Publication of WO1989006599A1 publication Critical patent/WO1989006599A1/fr

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J3/00—Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed
    • B41J3/32—Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed for printing in Braille or with keyboards specially adapted for use by blind or disabled persons

Definitions

  • the invention relates to an apparatus for printing Braille in paper, comprising means for transporting paper, an elongated die, a carriage movable along the die, and carrying a hammer with a printing head, and which at operating the hammer cooperates with the die for forming an embossment of a Braille character in the paper, and a controlling unit, which, in accordance with signals representing letters and other, characters, controls the carriage, the hammer and the means for transporting paper.
  • a controlling unit which, in accordance with signals representing letters and other, characters, controls the carriage, the hammer and the means for transporting paper.
  • This known apparatus has the disadvantage, that the daisy wheel, at least the dot character thereof, will wear down very quickly.
  • An important disadvantage is furthermore, that the embossments, which 'form the Braille character, are turned away from the user, so that the blind user can only check the printed Braille characters when the paper has been removed from the apparatus. Since the apparatus of this kind will often be used as a peripheral unit of a micro computer, the blind user has not the possibility to immediately check the text typed with the keyboard for mistakes.
  • the invention aims to provide an apparatus of the type described above, wherein this disadvantage is overcome easily and effectively.
  • the apparatus according to the invention is characterized in that the die is provided with a row of substantially half-spherical projections aligned with eachother, and arranged in groups of two with intermediate distances in accordance with the horizontal intermediate distances between the embossments in Braille, and in that the printing head of the hammer has an indentation complementary to the projections.
  • the embossments of the Braille characters are facing the user, so that the blind user can _. immediately read a line of Braille characters formed in the paper. Thus the user can immediately check the text entered with the keyboard.
  • the apparatus for facilitating reading of a formed line of Braille characters, is made in such a manner, that the controlling unit operates the means for transporting paper to scroll the formed line of Braille characters to a reading position, if during a predetermined period no signals representing letters and similar characters are received, while the controlling unit upon receipt of such signals operates the means for transporting paper to scroll the paper back into the original position.
  • the invention further provides the possibility to print a translation of a line of Braille characters in ordinary characters directly under a line of Braille characters.
  • the carriage is thereto provided with a printing unit for ordinary print.
  • Such an embodiment is especially favourable in education of blind people, since a teacher can for example correct texts produced by pupils in Braille very quickly in ordinary print. Further, with this embodiment correspondence between seeing and blind people is possible.
  • the die with a second row of approximately semi-spherical aligned projections with intermediate distances of equal length, wherein the controlling unit can, in accordance with signals representing a geometric figure or the like, operate the carriage, the hammer and the means for transporting the paper to form Braille embossments which together form this shape.
  • the intermediate distance between each two successive projections of the row of projections with equal intermediate distances corresponds with the vertical pitch 3 between the embossments of a Braille character
  • the controlling unit is made in such a manner that successive lines of text can be formed in the paper in the longitudinal direction thereof.
  • the die is provided with a row of substantially semi-spherical indentations aligned with eachoter and arranged in groups of two with intermediate distances corresponding to the intermediate distances of the embossments in Braille, wherein each group of two indentations is displaced over half a pitch between the embossments of a Braille character as compared to the projections, wherein the carriage is provided with a second hammer with printing head, which has a projection corresponding to the indentations, and wherein the controlling unit is made in such a manner that Braille characters to be formed optionally on the side of the paper facing away from the hammers, are formed simultaneously with the forming of Braille characters on the side of the paper facing the hammers.
  • the vertical intermediate distance between the row of projections and the row of indentations of the die equals thereby 1,5 times the vertical pitch between the embossments of a Braille character, so that the Braille characters at one side of the paper are placed as much as possible in the blank space between the lines on the other side of the paper. 4
  • Fig. 1 is a schematically shown top view of a first embodiment of the apparatus according to the invention.
  • Fig. 2 is a schematically shown top view of a second embodiment of the apparatus according to the invention.
  • Fig. 3 is a schematically shown side view of the carriage with hammer for Brail-le characters, as used in the embodiments of fig 1 and 2.
  • Fig. 4 shows a very simplified block diagram of the controlling unit according to fig. 1 and 2.
  • Fig. 5 is a schematically shown top view of a third embodiment of the apparatus according to the invention.
  • Fig. 6 is a very schematically, partly shown cross-section according to the line VI-VI in fig. 5 on a larger scale.
  • Fig. 7 is a view of the die of the apparatus according to fig. 5.
  • Fig. 8 shows the position of Braille characters on both sides of the paper.
  • Fig. 9 is a cross-section of the piece of paper shown in fig. 8.
  • Fig. 10 is a view of the die of a fourth embodiment of the apparatus according to the invention.
  • a first embodiment of a -apparatus for printing Braille print in paper is shown, which apparatus will be referred to hereinafter as Braille printer.
  • the Braille printer is provided with a transporting means or tractor 1 for paper 2, wherein the transporting of paper takes place by means of pins, which engage into the holes in the side edges of the paper.
  • the Braille printer is further provided with a carriage 3 and a stationary elongated die 4 formed as a platen, wherein the carriage 3 is movable in the longitudinal direction of the platen 4 by means of a motor 5 and a driving belt 6.
  • the transporting means 1 for the paper 2 is driven by a motor 7.
  • the carriage 3, which is shown schematically in side view on a larger scale in fig. 3, carries a hammer 8, which is carried out with a printing head 9, which is provided with a substantially half-spherical recess 10.
  • the hammer 8 is operable by exciting a coil 11.
  • the platen 4 is made of a rigid material, such as for example aluminium, and has a row of approximately half- spherical projections 12 aligned with eachother and arranged in groups of two with intermediate distances in accordance with the horizontal intermediate distances of the embossments in Braille. In fig. 3 only one projection 12 is visible. The row of projections 12 lies exactly in line with the path of the printing head 9 of the hammer 8.
  • a controlling unit which is represented as a very simplified block diagram in fig. 4, controls the carriage 3, the hammer 8 and the means for transporting paper 1 in such a way that in this manner the desired Braille characters are formed in the paper 2.
  • the control takes thereby place in dependency on signals corresponding to letters, interpunction, figures and the like, which are originating from a micro computer or the like not shown.
  • the controlling unit comprises a microprocessor 13, which is connected to a hammer control unit 14, a carriage controlling unit 15 and a paper control unit 16, which respectively control the coil 11, the motor 5 and the motor 7.
  • the microprocessor 13 is further connected to an interface 17, via which the communication with a personal computer or the like takes place.
  • the signals originating from this computer are translated into Braille characters with the use of a table stored in the memory 18, whereby the microprocessor 13 controls the various control units 13-15 in accordance with the position of the necessary embossments.
  • the described apparatus has the important advantage, that the embossments formed in the paper 2 are facing the user, so that a blind user can immediately read a formed line of Braille characters. In this manner it is for example possible for the user to immediately check a line of formed Braille characters for mistakes.
  • the microprocessor 3 is programmed in such a manner that it operates the transporting means 1 to scroll the formed line of Braille characters to a reading position, if no signals are received from the computer during a predetermined period, for example 2 sec. As soon as signals are again received from the computer, the microprocessor 13 operates the transporting means 1 to scroll the paper 2 back into the original position.
  • the Braille printer according to fig. 2 is especially suited for use in education for blind people, for the teachers can check texts considerably quicker. Further, 5 with this Braille printer a blind person can compose texts, which are intended for seeing persons.
  • a Braille printer which can form Braille characters on both sides of the paper 2.
  • the platen 4 which is shown in fig. 6 in cross 7 section and in fig. 7 in view, is provided with a row of approximately half-spherical indentations 22, aligned with eachother and arranged in the same manner as the projections 12 in groups of two with intermediate distances in accordance with the horizontal intermediate distances of the embossments in Braille.
  • the carriage 3 is provided with a second hammer 23 with a printing head 24, which has a projection 25 corresponding to the indentations 22.
  • the hammers 8 and 23 are shown schematically in fig. 6.
  • the hammer 23 is controllable with- a coil, not shown, in the same manner as the hammer 8. The control takes place by the controlling unit, which is to this end enlarged with a hammer control unit.
  • the indentations 22 are displaced over half the horizontal pitch a with respect to the projections 12.
  • the embossments 26 of the Braille characters on the reverse side of the paper will be located exactly between the embossments 27 of the Braille characters on the facing side of the paper.
  • the vertical .distance between the projections 12 and the indentations 22 of the platen 4 equals 1,5 times the vertical pitch b.
  • the embossments 26 of the Braille characters on the reverse side of the paper are placed as much as possible in the interline between two lines of Braille characters on the facing side of the paper.
  • FIG. 10 a view of the platen 28 for an alternative embodiment of the Braille printer according to the invention is shown.
  • the platen 28 is a part from the row of projections 12 provided with a row of substantially half- spherical projections 29 with equal mutual intermed!are distance.
  • the carriage 3 of his- Braille printer is provided with a not-shown second hammer with printing head, which has an indentation corresponding to the projections 29 and which can cooperate with this - second row of projections 29 to form embossments in the paper.
  • the controlling unit can operate the carriage 3, the hammer belonging to the projections 29 and the paper transporting means 1 in such a way, that a drawing or the like is formed in embossments in the paper. In this manner the controlling unit can form a geometrical figure or graphics pictured on the monitor screen of a personal computer or the like in the paper, so that this figure is made "visible" to a blind person.
  • the intermediate distance between the projections 29 equals the vertical pitch b of a Braille character.
  • the microprocessor 13 of the controlling unit is thereby programmed in such a manner, that successive lines of text can be formed in the 5 longitudinal direction if the paper, so that the Braille characters of a line in the Braille printer are positioned o as it were rotated over 90 in columns.
  • a line of Braille characters can comprise any desired number of Braille characters, so that for example a print out of 0 the text shown on a standard monitor screen with a width of 80 characters per line can also be made in Braille paper.
  • the knobs 30 shown in the figures 1, 2 and 5 are only serving for operating the paper transport means 1.
  • the platen 4 remains stationary under all circumstances, since a precise alignment of the rows of projections and indentations of the platen 4 with the 3 corresponding hammers is of great importance.
  • the die with the projections and of desired indentations is made each time as platen, it is of course also possible to carry out the die in any other desired manner.

Landscapes

  • Printers Characterized By Their Purpose (AREA)
  • Printing Methods (AREA)

Abstract

Un appareil servant à imprimer des caractères en Braille dans du papier comprend un organe (1) de transport du papier (2), une matrice allongée (4), un chariot (3) mobile le long de la matrice, qui porte un marteau (8) pourvu d'une tête d'impression (9) et qui, en mode de fonctionnement du marteau coopère avec la matrice (4) pour former un bosselage d'un caractère en Braille dans le papier (2), ainsi qu'une unité de commande qui, en accord avec des signaux représentant les lettres et autres caractères, commande le chariot, le marteau et l'organe de transport du papier. La matrice (4) est pourvue d'une rangée de saillies essentiellement semi-sphériques (12) alignées entre elles et disposées en groupes de deux avec des distances intermédiaires correspondant aux distances intermédiaires horizontales entre les bosselages en Braille. La tête d'impression du marteau comporte en outre un endentement (10) qui est complémentaire des saillies.
PCT/NL1989/000003 1988-01-21 1989-01-23 Appareil servant a imprimer des caracteres en braille dans du papier WO1989006599A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL8800135A NL8800135A (nl) 1988-01-21 1988-01-21 Inrichting voor het drukken van brailleschrift in papier.
NL8800135 1988-01-21

Publications (1)

Publication Number Publication Date
WO1989006599A1 true WO1989006599A1 (fr) 1989-07-27

Family

ID=19851628

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/NL1989/000003 WO1989006599A1 (fr) 1988-01-21 1989-01-23 Appareil servant a imprimer des caracteres en braille dans du papier

Country Status (3)

Country Link
AU (1) AU3051489A (fr)
NL (1) NL8800135A (fr)
WO (1) WO1989006599A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0524641A1 (fr) * 1991-07-26 1993-01-27 Toyo Hybrid Co.,Ltd. Machine à imprimer en braille
EP0960030A1 (fr) * 1996-05-15 1999-12-01 The State Of Oregon Acting By And Through The Oregon Stateboard Of Higher Education On Behalf Of The University Of Oregon Procede et appareil pour produire des empreintes en relief
WO2009016659A1 (fr) * 2007-07-27 2009-02-05 Pro Form S.R.L. Appareil et procédé pour gaufrer des caractères braille sur des éléments laminaires
ITMI20101797A1 (it) * 2010-09-30 2012-03-31 Pro Form S R L Metodo e apparato per la produzione di matrici destinate alla goffratura di caratteri braille, e matrici così ottenute

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1726803A (en) * 1929-09-03 Printing for the blind
US3844395A (en) * 1973-09-12 1974-10-29 Extel Corp Text display control for data printer
US4653942A (en) * 1985-02-12 1987-03-31 Visualtek, Inc. Method and apparatus for printing Braille
DE3534142A1 (de) * 1985-09-25 1987-04-02 Olympia Ag Schreib- oder bueromaschine aehnlicher bauart zum wahlweisen aufzeichnen von normal- oder brailleschrift

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1726803A (en) * 1929-09-03 Printing for the blind
US3844395A (en) * 1973-09-12 1974-10-29 Extel Corp Text display control for data printer
US4653942A (en) * 1985-02-12 1987-03-31 Visualtek, Inc. Method and apparatus for printing Braille
DE3534142A1 (de) * 1985-09-25 1987-04-02 Olympia Ag Schreib- oder bueromaschine aehnlicher bauart zum wahlweisen aufzeichnen von normal- oder brailleschrift

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
IBM Technical Disclosure Bulletin, volume 30, no. 7, December 1987, (Armonk, N.Y. US), "Braille printer capable of being easily monitored typist", pages 47-48 *

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0524641A1 (fr) * 1991-07-26 1993-01-27 Toyo Hybrid Co.,Ltd. Machine à imprimer en braille
US5193921A (en) * 1991-07-26 1993-03-16 Toyo Hybrid Co., Ltd. Braille printer
EP0960030A1 (fr) * 1996-05-15 1999-12-01 The State Of Oregon Acting By And Through The Oregon Stateboard Of Higher Education On Behalf Of The University Of Oregon Procede et appareil pour produire des empreintes en relief
EP0960030A4 (fr) * 1996-05-15 1999-12-01
WO2009016659A1 (fr) * 2007-07-27 2009-02-05 Pro Form S.R.L. Appareil et procédé pour gaufrer des caractères braille sur des éléments laminaires
ITMI20101797A1 (it) * 2010-09-30 2012-03-31 Pro Form S R L Metodo e apparato per la produzione di matrici destinate alla goffratura di caratteri braille, e matrici così ottenute
WO2012042548A1 (fr) * 2010-09-30 2012-04-05 Pro Form S.R.L. Procédé et appareil de production de matrices mâles pour gaufrer des caractères en braille et matrices mâles correspondantes

Also Published As

Publication number Publication date
NL8800135A (nl) 1989-08-16
AU3051489A (en) 1989-08-11

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