JPH043914B2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention is a method for printing Braille characters for the blind on paper.
Concerning a simple Braille typewriter.

[Conventional technology]

As shown in FIGS. 7 and 8, the conventional braille typewriter, which is small and lightweight and can be carried around, has a main body 3 on which paper 2 is placed, and a paper 2 placed on the main body 3. A printing mechanism section 5 supported between a paper feeding guide 1 which is held so as to be fed from the front to the rear thereof, and two rows of guide bars 4 in the front and back provided on the main body 3; a printing mechanism section 5 that can freely slide left and right, and a plurality of pins (not shown) for printing each point of Braille on the paper 2, which are provided in the printing mechanism section 5 so as to be able to be pushed down following the arrangement of Braille characters. ), a printing plate 7 provided on the main body 3 on which paper is placed, and on its surface, recesses 6 into which the lower ends of the plurality of pins are pushed are provided at regular pitches, and a printing plate 7 on the left and right sides of the printing mechanism section 5. A plurality of pin heads are arranged so that the rear parts thereof protrude outward from the printing mechanism part 5 following the arrangement of the fingers of a hand, and are arranged in front and back so that they can be pressed down. A book key lever 8 and a spacer key 9 that can be pushed down on the front of the printing mechanism section 5
, a return mechanism (not shown) using a coil spring or the like that raises and returns each of the key lever 8, pin, and spacer key 9 independently, and moves either the key lever 8 or the spacer key 9 up and down. A feeding mechanism 10 that moves the printing mechanism section 5 leftward and rightward on the guide bar 4 by a constant pitch each time the printing mechanism section 5 is moved leftward and rightward on the guide bar 4, and a paper feed guide that moves two portions of paper printed using the printing mechanism section 5. 1 and printing mechanism section 5, the reversing mechanism 12 rotates the paper 2 on the main body 3 to the left about a rotation shaft 11 provided on the left side of the main body to expose the surface portion of the printed paper 2 to the outside of the main body 3 so as to be touchable with the fingers. It is made up of.

When using this Braille typewriter, the paper 2 is placed between the paper feed guides 1 with the back side facing upward, placed on a predetermined position on the main body 3, and the printing mechanism section 5 is placed on the right end of the paper 2 along the guide bar 4. After moving, one or more of the plurality of key levers 8 arranged on the left and right sides of the printing mechanism section 5 is pushed down with a finger. Then, use those key levers 8 to push down the heads of one or more predetermined pins provided in the printing mechanism section 5 toward the paper, and make the lower ends of those pins bite into the back side of the paper 2 directly below them. Each is pushed into one or several predetermined depressions 6 on the surface of the printing plate 7 on the lower main body. Then, use the tips of those pins to
Each convex point of Braille is formed protrudingly on the surface. or,
Press down the spacer key 9 with your finger to create a space on the paper 2. Next, those key levers 8
Or, by releasing the finger from the spacer key 9, the key lever 8 or the spacer key 9 is raised and returned by the return mechanism. Then, the printing mechanism section 5 is moved leftward by one pitch on the guide bar 4 by the feeding mechanism 10.

From now on, repeat the above operations in order, and
From the right edge of the paper 2 sandwiched between the upper paper feed guides 1 to the left, at regular intervals,
As shown by the white dots in Figure 10a, inverted Braille characters facing in the positive direction, in which the dots in the two left and right rows of regular Braille characters are arranged in reverse, are printed in the recessed area with an appropriate space in the middle. do.

Here, "normal braille" refers to braille in which a predetermined number of dots are arranged in two columns on the left and right in a predetermined row, which is read by a blind person by touch, and "reverse braille" refers to braille that is read by touching the left and right sides of the normal braille.
Braille is a type of braille in which the rows of dots are rearranged horizontally.

In addition, when printing two or more lines of Braille on the paper 2, each time one line of Braille is printed indented from the right edge to the left on the back side of the paper 2, the paper feed guide 1 should hold the braille The same operation as above is repeated by feeding the paper 2 one line at a time from the front of the main body 3 to the back of the main body 3.

Then, on the surface of the paper 2, one or more lines of braille characters that can be read by the touch of a blind person's fingers, as shown by the black dots in FIG. 10b, can be printed in a left-to-right manner.

[Problem that the invention seeks to solve]

By the way, in the above-mentioned conventional Braille typewriter, each convex dot constituting Braille is placed on the surface of the paper 2.
When checking whether each convex dot of Braille has been printed accurately on the front side of the paper 2 without any errors during concave printing from the back side, check as shown in Fig. 8 and Fig. 10 a and b. , operate the reversing mechanism 12 to reverse the paper 2 to the left about the rotation shaft 11 provided on the left side of the main body 3 together with the paper feed guide 1 and the printing mechanism section 5.
The surface was exposed to the outside of the main body 3 so that it could be touched with the fingers.
Then, each convex point of the printed Braille characters on the exposed surface portion of the paper 2 was touched with a finger to judge whether it was good or bad.

Therefore, it was necessary to print Braille characters on the back side of the paper 2 from the right end of the paper to the left in a right-to-right writing manner, which is the opposite of the usual method.

The reason for this is that when Braille is printed left-to-right on the back side of the paper 2, when the paper 2 is turned over to the left as described above and the front side of the paper 2 is exposed on the main body 3, This is because the Braille characters printed in a convex manner on the surface of the paper 2 will be written from the right and become unreadable to the touch. The reason that right-handed Braille is unreadable is because Braille is always read left-handed.

However, from a normal human sense,
When printing Braille, it is natural to print the Braille on the paper 2 in the same left-to-right direction as the reading direction, but it felt unnatural when printing the Braille.

In addition, in the conventional Braille typewriter, in order to simplify the structure of the printing mechanism section 5, the printing mechanism section 5 pushes down a plurality of pins arranged in two rows on the left and right in the printing mechanism section 5. Of the plurality of key levers 8 arranged on the left and right, the frontmost key lever 8 is used to print the convex dots on the bottom row of Braille indented on the back side of the paper 2, and the next intermediate key lever 8 is used to print Braille characters on the back side of the paper 2. Each convex dot in the middle row is used as a key lever to print concavely on the back side of the paper 2, and the next rearmost key lever 8 is used as a key lever to concavely print each convex dot in the top row of Braille on the back side of the paper 2.

Specifically, as shown in FIG. 9, for example, the printing mechanism uses six pins to print each dot of 6-dot Braille, which is a combination of dots in two columns on the left and right and three rows on the top and bottom, on the back side of the paper 2. In the case of a Braille typewriter, in which three key levers are arranged in two rows on the left and right in the section 5, as shown in FIG. The short key lever 8a at the front that you press down with your index finger is used as the key lever that prints the left and right points e and f of the bottom row of 6-dot braille indented on the back side of the paper 2, and then the short key lever 8a at the middle part that you press down with your middle finger. The key lever 8b is used to print the left and right points c and d of the middle line of the 6-dot Braille indented on the back of the paper 2, and the long key lever 8c at the end that is pressed down with the next ring finger is used to print the left and right points c and d of the middle line of the 6-dot Braille. Points a and b on the left and right sides of the top row were used as key levers for printing indentations on the back side of the paper 2. Then, the short key lever 8a at the frontmost part is used to push down the left and right pins at the frontmost part of the printing mechanism section 5, and the medium-sized key lever 8b at the middle part is used to push down the printing mechanism section 5.
The left and right pins at the middle part of the printer were pressed down, and the long key lever 8c at the rear end was used to push down the left and right pins at the rear end of the printing mechanism section 5.

However, of the left and right key levers 8 of the printing mechanism section 5, the short key lever 8a at the forefront
is a key lever that prints the left and right points a and b of the top line of Braille indented on the back side of the paper 2, and the medium-sized key lever 8b in the middle is used to print the left and right points c and d of the middle line of braille on the paper. It would be natural to use a key lever with concave printing on the back side of paper 2, and the long key lever 8c at the rear end would be a key lever with concave printing on the back side of paper 2 with each point e and f of the bottom row of Braille characters. This is the world standard key lever arrangement for Braille typewriters.

That is, in the conventional Braille typewriter which is designed to be small and lightweight, a plurality of key levers 8 are arranged on the left and right sides of the printing mechanism section 5 that prints each point of Braille.
The arrangement of the keys was opposite to the world standard key lever arrangement.

Therefore, when printing Braille on the paper 2, the key levers 8 arranged on the left and right sides of the printing mechanism section 5 are often pressed down by mistake, making it difficult to easily print each dot forming the Braille on the paper 2 without error. I couldn't do it.

It should be noted that conventionally, the key levers 8, which are configured to be able to print Braille characters left-to-right on the paper 2, and which print the convex dots that make up the Braille characters, have been designed to imitate the natural senses of humans and have been designed to meet global standards. Braille typewriters are also known which have an arrangement identical to that of the Braille typewriters.

However, the Braille typewriter uses a complicated and large-scale link mechanism, is large and heavy, and cannot be easily carried and used anywhere.

The present invention has been made in view of the above-mentioned problems in the prior art.
A plurality of key levers 8 that can print Braille in left-to-right writing on the top and are arranged side by side on the left and right sides of the printing mechanism section 5.
To provide a small and lightweight Braille typewriter with a simple structure, capable of printing each point constituting Braille on paper 2 without error in imitation of normal human senses, and easily carried and used anywhere. The purpose is to

[Means for solving problems]

In order to achieve the above object, the Braille typewriter of the present invention moves the paper 2 placed on the main body 3 from the back of the main body 3 to the front of the main body 3, as shown in FIGS. 1 to 5. A paper feed guide 1 that can feed the paper, a printing mechanism 5 that can move relatively laterally on the paper 2 placed on the main body 3, and a paper feed guide 1 that can be moved horizontally on the paper 2 placed on the main body 3; A plurality of pins 13 for printing each dot, and a plurality of recesses 6 provided on the main body 3 facing the plurality of pins, into which the lower ends of the plurality of pins 13 are pushed into a certain surface. Printing plate 7 provided for each pitch and printing mechanism section 5
A plurality of pins are arranged on the left and right sides of the print mechanism 5 in a manner similar to the arrangement of the fingers of the hands, and are arranged in front and back toward the outside of the printing mechanism section 5 so as to be able to be pressed down. key lever 8
, a spacer key 9 that can be pressed down on the printing mechanism section 5, a key lever 8, and a pin 13.
and a return mechanism for raising and returning the spacer key 9, and the key lever 8 or spacer key 9.
A feeding mechanism 10 that relatively moves the printing mechanism section 5 by a constant pitch each time one of the above is moved up and down so as to be able to move the printing mechanism section 5 rightward and leftward on the paper 2 and return to its original position.
and a reversing mechanism 12 that inverts the printed paper 2 portion together with the printing mechanism section 5 backward on the main body 3 to expose the printed paper 2 portion surface to the outside of the main body 3 so that it can be touched. There is.

[Effect]

In the Braille typewriter with the above configuration, paper 2
is inserted into the paper feed guide 1 on the main body 3. Then, the paper 2 is placed on the printing plate 7 with its back side facing upward. At the same time, the printing mechanism section 5 is relatively moved to the left end on the paper 2. Next, one or more of the plurality of key levers 8 arranged on the left and right sides of the printing mechanism section 5 are moved with the fingers following the arrangement of Braille characters to be printed on the paper 2 placed on the printing plate 7. Press down. Then, by pressing down the key lever 8, one or more predetermined pins 13 provided in the printing mechanism section 5 are pushed down in the direction of the paper 2, and the lower ends of the pins 13 bite into the back surface of the paper 2 directly below. Push it into one or several depressions 6 on the surface of the printing plate 7 below. At the lower ends of these pins 13, one or several convex dots constituting Braille are formed protruding from the surface of the paper 2. Alternatively, press down the spacer key 9 with your finger to create a space on the paper 2. Next, the key lever 8 or spacer key 9 that has been pressed down is released, and the key lever 8 or spacer key 9 is raised and returned by the return mechanism. Then, the printing mechanism section 5 is moved one pitch relatively to the right on the paper 2 by the feeding mechanism 10.

Thereafter, by repeating the above-mentioned operations one after another, write braille characters on the back side of the paper 2 placed on the printing plate 7 from the left edge to the right, as shown by the white dots in FIG. 13b. This is inverted Braille in which the dots in two rows on the left and right are arranged in reverse left and right, and the inverted inverted Braille is printed concavely at a constant pitch with an appropriate space in the middle.

In addition, when printing two or more lines of Braille on the paper 2, each time one line of Braille is printed from the left edge of the paper 2 to the right, the paper 2 held by the paper feed guide 1 is moved to the main body 3. Repeat the same operation as above, moving the top line one line at a time from the back to the front.

Then, on the surface of the paper 2, one line or a plurality of lines of normal braille characters, as shown by the black dots in FIG.

In addition, when checking whether the convex dots of Braille have been printed accurately on the surface of the paper 2 without any errors while printing concave dots from the back side of the paper 2, please refer to Figures 4 and 5. 13a and 13b, the reversing mechanism 12 is operated to reverse the paper 2 together with the printing mechanism section 5 on the main body 3, and the surface of the paper 2 is transferred to the main body 3.
expose to the outside. Then, touch each convex point of the printed Braille on the exposed surface of the paper 2 with your finger.

Then, as shown by the black dots in Figure 13a,
The Braille characters printed in a convex manner on the surface of the paper 2 become left-handed regular Braille characters facing in the positive direction, and these regular Braille characters can be easily and accurately read by reading left-handed by touching with a finger.

In the Braille typewriter with the above configuration, when trying to simplify the structure of the printing mechanism section 5,
Naturally, as shown in FIG.
Push down the left and right pins 13 at the frontmost part of the center, and use these pins 13 to touch the left and right points of the bottom row of the inverted inverted Braille characters shown as white dots in Figure 13b, that is, the top row of the inverted Braille characters. Points a and b on the left and right sides of the paper 2 are printed concavely on the back side of the paper 2, and with a medium-sized key lever 8b located between the left and right sides of the printing mechanism section 5, the left and right pins 13 at the intermediate section of the printing mechanism section 5 are pressed. Push down each one and use those pins 13 to move the left and right points of the middle line of the inverted inverted Braille characters shown by white dots in FIG. 2. Concave printing is performed on the back side, and the left and right pins 13 at the rearmost part of the printing mechanism part 5 are pushed down using the long key levers 8c at the rearmost left and right parts of the printing mechanism part 5, and with those pins 13, The left and right points of the top line of the inverted inverted Braille characters shown by white dots in Figure 13b, that is, the left and right points e and f of the bottom line of the inverted Braille characters, are printed indented on the back side of the paper 2. . That is, the arrangement of the key levers arranged on the left and right sides of the printing mechanism section 5 for printing each point of Braille is the same as the world standard key lever arrangement of Braille typewriters.

As a rule of thumb, when printing inverted inverted Braille characters as shown by the white dots in FIG. If the arrangement of the key levers 8 is the same as the world standard arrangement as described above, even if you do not remember the arrangement of each dot of reverse braille, you can print the left and right sides of the printing mechanism part 5 as if printing normal braille characters facing in the forward direction. By pressing down the plurality of key levers 8 arranged side by side with each finger as described above, the pins arranged in two rows in the printing mechanism section 5 naturally print inverted inverted Braille characters on the back side of the paper 2. I can write.

Therefore, in the Braille typewriter of the present invention, when the structure of the printing mechanism section 5 is simplified, the arrangement of the plurality of key levers 8 arranged side by side on the left and right sides of the printing mechanism section 5 is changed to the world standard for Braille typewriters. The arrangement can be the same as the key lever arrangement. Then, press down the plurality of key levers 8 arranged in the same manner as the world standard key lever arrangement with each finger as shown in Fig. b
Inverted inverted braille characters as shown by white dots can be printed on the back side of paper 2 without error and without any discomfort.

In addition, in the Braille typewriter with the above configuration, the key lever 8 arranged on the left side of the printing mechanism section 5
is used as a key lever for printing each dot on the left side of Braille on the back side of the paper 2, and each point on the right side of the Braille of a key lever 8 arranged on the right side of a printing mechanism part 5 is used as a key lever for printing concave print on the back side of the paper 2.

Therefore, each point in the left column of Braille can be printed using the key lever 8 on the left side of the printing mechanism section 5, and each point on the right column of Braille can be printed using the key lever 8 on the right side of the printing mechanism section 5, imitating the natural sensation.

〔Example〕

Next, embodiments of the present invention will be described with reference to the drawings. 1 to 5 show a preferred embodiment of the Braille typewriter of the present invention, and in the figures, 3 is a main body on which a sheet 2 is placed. A paper feed guide 1 is provided on the main body 3, which pinches the paper 2 placed on the main body 3 and sends the paper 2 over the main body 3 from the rear to the front. A printing mechanism 5 is supported between two front and rear guide bars 4 provided on the main body 3 so as to be slidable left and right on the guide bars 4. In the printing mechanism section 5, there are pins 13 for printing each dot of 8-dot Braille indented on the back side of the paper 2 on the paper 2 sandwiched between the paper feed guides 1, 4 pins 13 on the left and 2 sides, following the arrangement of each dot of the Braille. A total of 8 can be pressed down by arranging them in a row. Eight pins 1 in the printing mechanism section 5
A strip-shaped printing plate 7 is provided on the main body 3 facing the main body 3, and has depressions 6 at regular pitches on its surface into which the lower ends of eight pins 13 are pushed. On the left and right sides of the printing mechanism section 5, each head of each of the eight pins 13 in the printing mechanism section 5 is attached to a printing plate 7 independently.
Four long and short belt-shaped key levers 8, each of which is pressed down, are arranged one after the other with their rear parts projecting outward from the printing mechanism section 5. The tip of the key lever 8 is supported on a shaft (not shown) in the printing mechanism section 5 so as to be rotatable in the vertical direction. The rear end of the key lever 8 is provided with a concave key top 14 that can be pressed with a fingertip. Key top 14 of the frontmost key lever 8a
and the key top 14 of the key lever 8b at the rear thereof are arranged vertically. The other key tops 14 are arranged horizontally. And key levers 8a, 8b, 8c, 8
Thumb, index finger, middle finger on key top 14 of d,
The tip of the ring finger can be easily applied to each part. At the same time, among the four key levers 8 arranged on the left and right sides of the printing mechanism section 5, the frontmost key lever 8a is pressed down with the thumb.
are arranged in two rows on the left and right in the printing mechanism section 5.
The left and right pins 13 at the frontmost part of the book pin 13 are used as key levers to push down, and the next key lever 8b to be pushed down by the index finger is used as a key lever to push down the left and right pins 13 at the next intermediate part in the printing mechanism section 5, and the next The key lever 8c that is pressed down with the middle finger is used as the key lever that pushes down the left and right pins 13 at the next intermediate part in the printing mechanism section 5, and the key lever 8d at the end that is pushed down with the next ring finger is used as the key lever that is pushed down on the left and right pins 13 in the next intermediate section of the printing mechanism section 5. The next left and right pins 13 at the rear end are used as key levers to push down, respectively. Furthermore, the structure of the printing mechanism section 5 is simplified. The front part of the printing mechanism section 5 is provided with a spacer key 9 for moving the printing mechanism section 5 rightward on the guide bar 4 by one pitch. The key lever 8, pin 13 and spacer key 9 include
It is equipped with a return mechanism (not shown) using a coil spring or the like, which independently rotates or moves the key lever 8, pin 13, and spacer key 9 upward and returns when they are pressed down. . In the printing mechanism section 5, each time either the left or right key lever 8 or spacer key 9 is moved up or down, the printing mechanism section 5 moves the paper 2 sandwiched between the paper feed guides 1 to the right by a certain pitch. , is provided with a feeding mechanism 10 that moves on the guide bar 4 so as to be able to move and return to the left.
The feed mechanism 10 is composed of a rack 15 and the like provided along the guide bar 4. The paper feed guide 1 that holds the paper 2 is provided with the paper 2, together with the paper feed guide 1 and the printing mechanism section 5, by inverting the paper 2 backward on the main body 3 around the pivot portion 16 of the paper feed guide 1 at the rear end of the main body 3. The printer is provided with a reversing mechanism 12 that exposes the surface of the printed paper 2 sandwiched between the paper sheets 1 and 1 to the outside of the main body 3 so as to be touchable.

The Braille typewriter shown in Figures 1 to 5 has the above configuration, and when using it,
Insert paper 2 between paper feed guides 1 and
The paper 2 is placed on the upper printing plate 7 with its back side facing upward. At the same time, the lever 17 on the top of the printing mechanism section 5 is operated to open the locking means of the feeding mechanism 10, and the printing mechanism section 5 is moved to the guide bar 4.
Move the top to the left edge of paper 2. Next, one or more of the eight key levers 8 on the left and right sides of the printing mechanism section 5 are pressed down with each finger as described above, following the arrangement of Braille characters to be printed on the paper 2. Then, by pressing down the key lever 8, a predetermined one or several pins 1 in the printing mechanism section 5 are pressed.
3. Push the heads down in the direction of the paper 2, and bite the lower ends of the pins 13 into the back surface of the paper 2 directly below them, and apply them to one or more predetermined pins on the surface of the printing plate 7 on the main body 3 below them. into the recesses 6 of each. Then, the lower ends of these pins 13 are used to print inverted inverted Braille characters on the back surface of the paper 2, thereby forming protruding points constituting the Braille characters on the surface of the paper 2. Or spacer key 9
Press down with your thumb to make space on paper 2. Next, the finger is released from the depressed key lever 8 or spacer key 9, and the key lever 8 or spacer key 9 is rotated or moved upward by the return mechanism. Then, the printing mechanism section 5 is moved rightward on the guide bar 4 by one pitch by the feeding mechanism 10.

Thereafter, by repeating the above operations one after another, inverted 8-dot Braille characters are placed on the back side of the paper 2 held in the paper feed guide 1 on the main body 3 at regular pitches from the left end to the right. Concave printing is performed while leaving an appropriate space in the middle.

In addition, when printing two or more lines of Braille on the paper 2, each time one line of Braille is printed indented from the left edge of the paper 2 to the right on the back of the paper 2, the paper is held between the paper feed guides 1. The same operation as described above is repeated by feeding the paper 2 line by line from the back of the main body 3 to the front of the main body 3.

Then, on the surface of the paper 2, positive braille characters facing in the positive direction that can be read by touch are printed in a convex manner over one or more lines in left-to-right writing.

In addition, when printing inverted 8-point Braille on the back side of the paper 2, among the four key levers 8 arranged on the left and right sides of the printing mechanism 5, the frontmost key lever 8a, which is pressed down with the thumb, is pressed. The left and right points of the bottom line of the inverted 8-dot Braille, that is, the left and right points x and y of the top line of the 8-dot Braille shown in Figure 6, are placed on paper 2.
Concave printing is printed on the back side, and by pressing down with the next index finger, press the intermediate key lever 8b to select each point on the left and right of the next intermediate row of inverted 8-dot Braille, that is, 8 as shown in FIG.
Place each point a and b on the left and right of the next middle line of Braille on paper 2.
Concave printing is performed on the back side, and by pressing the key lever 8c at the middle part with the next middle finger, each point on the left and right of the next middle line of the inverted 8-dot Braille character, that is, the 8 points shown in FIG. 6, is printed.
The left and right points c and d of the next middle line of Braille are printed indented on the back of the paper 2, and then the last key lever 8d is pressed down with the ring finger to print the left and right points of the top line of the inverted 8-dot Braille. Each point, that is, each point e and f on the left and right of the bottom line of the 8-point braille shown in FIG. 6, is printed indented on the back side of the paper 2. In other words, the eight key levers 8 arranged on the left and right sides of the printing mechanism section 5,
The eight key levers 8 are arranged in the same manner as the world standard key lever arrangement for Braille typewriters.

And those key levers 8a, 8b, 8
Press one or more of c and 8d down with each finger as described above, as if printing 8-point braille facing in the forward direction, and print each dot of the inverted 8-point braille on the back of paper 2. Each print is indented without any discomfort.

In addition, when printing 6-dot Braille on paper 2 with the Braille typewriter having the above configuration, it is possible to use the left and right key levers 8a at the front of the left and right key levers 8 of the printing mechanism section 5 without using them. Using the left and right key levers 8b, 8c, and 8d of the printing mechanism section 5 other than the
In the same manner as described above, inverted six-dot braille characters, as shown by the white dots in FIG. 13b, are printed indented on the back side of the paper 2. Then, on the surface of the paper 2, 6-dot braille characters facing in the forward direction, as shown by the black dots in FIG.

In addition, when checking whether or not the Braille is printed correctly on the surface of the paper 2 while printing Braille on the paper 2, the locking claw 18 on the front of the main body is removed from the paper feed guide 1, and the fourth As shown in FIG. 5 and FIG. 5, the paper 2 is reversed backwards on the main body 3 together with the paper feed guide 1 and the printing mechanism section 5 by the reversing mechanism 12 around the pivot portion 16 of the paper feed guide.
The surface of the paper 2 is exposed on the main body 3.

Then, the convex dots of the Braille characters printed left-to-right on the exposed surface of the paper 2 and pointing in the forward direction are read with the touch of a finger to determine whether the Braille characters printed on the surface of the paper 2 are good or bad.

In the Braille typewriter of the above embodiment, the printing mechanism section 5 is fixed on the main body 3 and the paper 2 is
The paper feed guide 1 on which the paper is sandwiched and placed may be configured to be able to be moved by a fixed pitch on the main body 3 by the feed mechanism 10 so as to be able to move leftward and rightward and return. By moving the paper 2 along with the paper feed guide 1 to the left on the main body 3 by a fixed pitch, the printing mechanism section 5 can be moved relatively to the right on the paper 2 one pitch at a time. good.

In addition, the left and right key levers 8a at the frontmost part of the printing mechanism part 5 are removed, and the left and right pins 13 at the frontmost part of the printing mechanism part 5 are removed to make the Braille typewriter as shown in FIG. The Braille typewriter may be configured exclusively for 6-dot Braille to print 6-dot Braille on paper, and even in this case, the Braille typewriter can be configured to have the same functions and effects as the Braille typewriter of the above-mentioned embodiment. can.

Further, the reversing mechanism 12 rotates the paper 2 together with the printing mechanism section 5 into the main body 3 without reversing the paper feed guide 1.
It may also be formed in a structure in which it is flipped backwards at the top.

〔Effect of the invention〕

As described above, according to the Braille typewriter of the present invention, when the printing mechanism is simplified,
The arrangement of the plurality of key levers arranged side by side on the left and right sides of the printing mechanism can be made the same as the arrangement of the world standard key levers of Braille typewriters. By pressing down the multiple key levers lined up on the left and right sides of the printing mechanism with your fingers, as if you were printing normal Braille characters facing in the forward direction, you can do so without having to remember the arrangement of the dots in reverse Braille characters. , it is possible to print inverted inverted Braille characters on the back side of the paper 2 in a concave manner, imitating the normal feeling. At the same time, Braille can be printed indented on the back side of the paper using left-to-right writing, following the natural sensation. Then, the positive Braille characters facing in the positive direction can be easily printed on the surface of the paper in a left-to-right manner without any errors.

In addition, when checking whether each point of Braille has been printed without error on the surface of the paper, the reversing mechanism is used to invert the paper along with the printing mechanism backwards on the main body to expose the surface of the paper to the outside of the main body. The quality of the Braille characters printed on the surface of the paper can be easily and accurately checked by touching the exposed Braille characters printed on the exposed paper surface in a left-to-right manner and pointing in the forward direction to the left with the touch of a finger.

[Brief explanation of drawings]

1, 2, and 3 are a plan view, a front view, and a side view, respectively, of a Braille typewriter of the present invention. FIGS. 4 and 5 are a front view and a side view, respectively, of the Braille typewriter of the present invention in a state where the paper portion printed using the reversing mechanism is reversed to the rear of the main body together with the paper feed guide and the printing mechanism section. FIG. 6 is an explanatory diagram of the arrangement of 8-dot Braille. 7 and 8 are a plan view and a front view of a conventional Braille typewriter. FIG. 9 is an explanatory diagram of the arrangement of 6-dot Braille. 1st
Figures 0a and 0b show, respectively, a regular 6-dot Braille character facing in the forward direction printed convexly on the front surface of a sheet of paper and an inverted 6-dot Braille character printed concavely on the reverse side of the paper sheet using a conventional Braille typewriter. FIG. 11 is an explanatory diagram showing the arrangement of the key levers of a conventional Braille typewriter, and FIG. 12 is an explanatory diagram showing the arrangement of the key levers of the Braille typewriter of the present invention. FIGS. 13a and 13b show, respectively, a regular 6-dot Braille character facing in the forward direction printed convexly on the front surface of a sheet of paper and an inverted 6-dot Braille character printed concavely on the reverse side of the sheet using the Braille typewriter of the present invention. 2...Paper, 3...Main body, 4...Guide bar,
5... Printing mechanism section, 7... Printing plate, 8...
Key lever, 9...spacer key, 10...feeding mechanism, 12...reversing mechanism.

Claims (1)

[Claims] 1. A paper feed guide that grips the paper placed on the main body so that it can be fed from the back of the main body to the front of the main body, a printing mechanism section that can move relatively laterally on the paper placed on the main body, and a printing mechanism that A plurality of pins are provided in the mechanism section so as to print each dot of Braille on the paper, and a plurality of pins as described above are provided on the surface of the main body on which the paper is placed facing the plurality of pins. A printing plate is provided with a plurality of depressions at regular pitches into which the lower end of each pin is pushed, and the marking plates are arranged one after another toward the outside of the printing mechanism, following the arrangement of fingers on the left and right sides of the printing mechanism. A plurality of key levers that can be pushed down and that independently push down each of the above pin heads in the direction of the paper, a spacer key that can be pushed down on the printing mechanism section, and each of these key levers, pins, and spacer keys. A return mechanism that raises and returns, and each time one of the key levers or spacer keys is moved up and down, the printing mechanism section is moved rightward and leftward on the paper and relatively moved by a constant pitch to enable return. A Braille typewriter characterized by being equipped with a feeding mechanism and a reversing mechanism that inverts the printed paper portion together with the printing mechanism portion backward on the main body to expose the surface of the printed paper portion to the outside of the main body so that it can be touched. .