RU25955U1 - KEYBOARD FOR BRAIL SYSTEM CHARACTERS - Google Patents

Description

Braille Keyboard

The utility model relates to the field of equipment, in particular to keyboards for typing characters using the Braille system.

The proposed keyboard can be used as a multifunctional computer keyboard for entering Braille code characters, operating system file commands, as well as entering text editing commands. It can also be used as the governing body of typewriters, typewriters in Braille and others.

A known typewriter is Braille 1, which includes a keyboard consisting of keys mounted on levers that have an optimal punch-clavppa shoulder ratio, and the symbol keys have a concave shape that repeats the shape of the phalanges of the fingertips, index, middle and nameless.

A disadvantage of the known device is the low speed of information input and increased operator fatigue, due to the need to move the keys, requiring sufficiently large muscular efforts when a key is pressed, which leads to a decrease in productivity during the work of an operator (a person with visual impairments).

A well-known electronic keyboard for typing in Braille 2 is selected as the closest analogue, containing a rectangular base, six character keys and the Space key located in the lower, central part of the base.

The disadvantage of the closest analogue is the low productivity (especially when collecting a large amount of information), due to the increased fatigue of the operator’s hands due to the lack of support for the hands, and their inconvenient location, low accuracy of the character set according to the Braille system, associated with the absence of recesses for fixing the fingers as well as limited keyboard functionality.

The purpose of the utility model is to increase the productivity and accuracy of character set by Braille by arranging a more ergonomic keyboard (including introducing supports for the hands and indentations for fixing the fingers) and expanding the functionality by introducing additional function keys and buttons into it.

This goal is achieved by the fact that the keyboard for typing in Braille has a base, six keys for typing and the Space key located in the lower, central part of the base. New is that the second key “Space and two buttons“ Uppercase and “Numeric, the keys of the character set and buttons are round, both keys“ Spacebar are oval, the buttons “Uppercase and“ Digital are located to the left and right of character key, both Space keys are located symmetrically to each other in the lower central part of the base, while all keys and buttons are located in recesses, corresponding to their geometry of the location of the phalanges of the fingers on the plane, and in the left and right the lower parts of the base are placed supports for the hands. It is desirable that the recesses in which the keys are located for typing characters and the recesses of the Space keys have a concave side surface that allows you to fix the fingers of the operator’s hands. Preferably, the recesses in which the mode indicator buttons are located have a concave lateral surface with a flat horizontal platform at the bottom. It is desirable that the keys and buttons have a convex surface. It is necessary that the supports for the hands have a concave surface. It is desirable that the concave surface of the supports for the hands correspond in shape to the area of the wrist - the base of the hands.

The proposed utility model is presented in the drawing.

The keyboard for typing Braille contains the base 1, supports for the hands 2, round keys for typing 3 in Braille, two oval keys “Space 4, the sign of the mode key“ Uppercase 5, the button of the sign of the mode “Digital 6, keys and the keyboard buttons are located in the recesses 7 with concave side surfaces 8, and in the lower part of the recesses in which the mode indicator buttons are located, there is a flat gorizontalnaya platform 9.

All the keys and buttons of the keyboard - in the amount of ten according to the number of fingers of both hands of the operator, are located in the corresponding recesses 7 for fixing the position of the fingers. The recesses 7 have smooth concave lateral surfaces 8. The shape of the recesses 7 corresponds to the shape of the keys and buttons: two oval recesses for the oval keys “Space 4, six round recesses for the character keys and two round recesses for the mode sign buttons. The keys and buttons, as shown in sections A-A and B-B in the drawing, have a convex surface.

Keyboard operation is carried out as follows. The operator before working on the keyboard places the wrists and bases of the hands of the right and left hands on the supports for the hands 2, designed to reduce the tension of the hands that occurs while working on the keyboard. The fingertips of both hands are in the recesses 7 above the corresponding keys or buttons. The fingers of the right hand and left hand, except for the little fingers and large, are located in the recesses 7 above the round keys for character set 3 according to the Braille system. The thumbs are located in the recesses 7 above the elongated oval keys "Space 4. The little fingers of the right hand and left hand are located in the recesses 7

above the round buttons of the “Uppercase” and “Digital” mode signs, 5 and 6, respectively. When working on the keyboard, the operator positions the hands, placing the wrists and the bases of the hands on the supports for the hands 2, and, while typing the characters, activates the round keys for typing 3 using the Braille system. Entering an alphanumeric character is as follows. Each character in the Braille code corresponds to simultaneously pressing a certain combination of round keys for character set 3. The selected combination of activated round keys for character set 3 is remembered.

Fixation of the input character in the form of a signal can be performed, for example, by the last pressed shortcut key for character set 3 from the combination of keys corresponding to this character. Each braille key for character set 3 corresponds to one character element in the braille code. So for the character set “a by

t-

Braille - “just activate one round key

for character set 3. For character set b in Braille. J I need to activate two keys. t

Operation "Space is carried out when activated by any of

the thumbs of one of the elongated oval keys “Space 4. The oval shape of these keys allows their activation by the lateral surfaces of the thumbs, which corresponds to the natural arrangement of the fingers on the plane without tension.

To enter the operating modes of the keyboard "Lowercase or" Uppercase, use button 5, which is switched by the little finger of the right hand. If the button is pressed (recessed), then capital letters are typed, in the simplest case - lowercase. The tactile indication of the operating mode of lowercase or uppercase letters is carried out due to the ability to control the position of the button in relation to a special flat horizontal platform 9 in the lower part of the angle. The image diffle of this site is shown in section A - A in the drawing. For example, when

in case of capital letters, button 5, by means of which the “Uppercase, recessed” mode is switched, that is, it is flush with a flat horizontal platform 9 in the lower part of the recess 7. When in capital letters mode, button 5 is depressed and is higher than this horizontal platform 9 .

To enter letters or numbers, use button 6 to switch to the Digital or Alphabet mode of the keyboard (digital register). Switching of button 6 is carried out with the little finger of the left hand in the same way as when switching the operating modes of the keyboard “Lowercase or“ Uppercase.

The position of the buttons 5 and 6 pressed or pressed (protrudes or recessed) determines the keyboard operating modes - “Lowercase or“ Uppercase, “Alphabetical or“ Digital, respectively. This allows the operator to control during the dialing the operating mode in which the keyboard is located and to correctly switch the keyboard operating modes.

Pressing the right and (or) left key “Space in combination with one or more character keys allows you to significantly increase the number of different characters and commands entered and extends the functionality of the keyboard.

To enter text editing commands, for example, the “Slaughter” command, simultaneously press the right space key and the fourth, counting the symbol key on the left side. In this case, the previously typed erroneous combination of symbol elements is reset, and the keyboard is ready to dial a new symbol.

In a similar way, the input of the commands of the operating file system and others is performed. For example, the command to write the file Save can be performed by simultaneously pressing the left space key and the third symbol key. In this case, depending on the contents of the file address, the file can be printed, written to

hard or floppy disk, sent by e-mail, etc. The proposed keyboard allows you to expand the functionality of the keyboard compared to the closest analogue. Facilitating the orientation of the wrist and fingers reduces the tension of the hands, which allows the operator to make movements when working on the proposed keyboard with the optimal effect, that is, with the greatest accuracy, speed and with the least stress.

Used sources:

1. Certificate for utility model No. 11755, cl. 6 V 41 3/32, 11.16.99 Bull. Number 11.

2.APUVALINEKUVASTO 1997, Nakovammaisten Keskusliitto ry Apuvalinekeskus, S.21. Makelankatu 52 B, 00510 HELSINKI.

The authors:

A.D. Kuharev G.I. Sokolova

B.V. Kvashennikov Yu. K. Grishin

Claims (6)

1. The keyboard for typing characters in the Braille system, having a base, six keys for typing characters and the Space key located in the lower, central part of the base, characterized in that a second Space key and two Uppercase buttons are entered into the keyboard and “Digital”, with the character keys and buttons being round, both Space keys are oval, the Capital and Digital keys are to the left and right of the character keys, both Space keys are located at the bottom, central part of base symmetry relative to each other, with all the keys and buttons located in the recesses corresponding to the geometry of the arrangement of the phalanges of the fingertips on the plane, and supports for the hands are placed in the left and right lower parts of the base.  2. The keyboard according to claim 1, characterized in that the recesses in which the keys for typing characters and the Space bar are located have a concave side surface that allows you to fix the fingers of the operator’s hands.  3. The keyboard according to claim 1, characterized in that the recesses in which the mode indicator buttons are located have a concave lateral surface with a flat horizontal platform at the bottom.  4. The keyboard according to claim 1, characterized in that the keys and buttons have a convex surface.  5. The keyboard according to claim 1, characterized in that the support for the hands have a concave surface. 6. The keyboard according to claim 5, characterized in that the concave surface of the supports for the hands corresponds in shape to the area of the wrist-base of the hands.