SU1511144A1 - Device for light-touch printing and typing - Google Patents

Abstract

The invention relates to printing devices and allows the expansion of technological capabilities through the implementation of synchronous printing for visually impaired and typewritten texts. When hitting a letter key on paper wrapped on a small carriage, a letter is printed and the carriage moves 2.6 mm, transmitting movement to the gear of the gearbox, the large gear of which moves the large carriage 6.0 mm with the paper to extrude the relevant signs on it. . At the moment of impact on the key through the mating unit, the connection to the buses occurs through the diodes, from where current flows to electromagnets with punches, which squeeze out the tactile indices. 5 il.

Description

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The invention relates to printing devices that enable a blind person to print identical normal typewritten copies synchronously with printed dot signs on the device in exact correspondence with the requirements for business correspondence, literary manuscripts, without having to write them to the exact typist.

The purpose of the invention is the expansion of technological capabilities through the implementation of synchronous printing for visually impaired and typewritten texts 4

Figure 1 presents the proposed device, a General view; Fig.2 is the same, side view; on fig - the same, top view; figure 4 - matrix with punches; Fig. 5 is a diagram of a matching node;

The device has a housing 1, a writing machine 2, a small carriage 3, alphabetic keys 4, an idling key 5, an upper register lever 6, a deflection spring 7 for a lever, a large carriage. 8, a lever 9 for angular movement of the shaft, a channel 10 with holes for extruding characters, brackets 11 dp for mounting a channel, a handle 12 for lifting a channel, a plate 13 from an insulator for punches, a punch 14, electromagnets 15 with levers for punches a gear 16 for lifting channel and. spring, gear 17 with straight teeth. pitch, receiving bar 18 with straight teeth of pitch 6.0 mm, gear reducer 19, panel 20 pulse switches, pulse switches 21, cassette 22 for thick paper, receiving cassette 23, finger separation plate 24, matching node containing diode assemblies 25 and tires 26 "

The device works as follows

The device is connected to a current source via a rectifier (not shown). When hitting the letter key on paper wrapped around the shaft of the small carriage 3, the letter Open constipation is printed and under the action of the winding spring the carriage moves 2.6 mm, transmitting movement through the reed 44

gear reducer 19, large gear 16 which through the rail moves the large carriage 8 to 6.0 mm

with wrapped special paper to extrude the main signs on it. At the moment of hitting the key, three contacts 21 are closed: the current source and the contact with the wire branching out according to the letter code installed on each branch connected to the buses 26 through the diodes 25 locking the reverse current. From the bus current flows to

electromagnets with punches 15, which squeeze on. special paper wells. When the upper register lever 6 is closed, a current is transmitted To the electromagnet associated with the Poan

a dream that squeezes an asterisk above the sign, indicating the upper-case letter or number

Claims (1)

Invention Formula A device for tactile printing and typewriting, comprising a housing with a main carriage and with a fixed c. there is a keyboard, each key of which is connected via the connecting node with six punches for printing in Braille and a seventh for capital letters. digital figures forming a writing matrix and keyboard levers, each of which is electrically connected with a corresponding punch, characterized in that with the aim of expanding technological possibilities by implementing synchronous print for visually impaired and machine-type texts, it is equipped with an additional carriage installed in the housing, kinematically connected to the main carriage by means of reduk-. torus, and the interface node contains diode assemblies, the number of which corresponds to the number of keys and bus, the number of k, which corresponds to the number of punches, each key is associated with the positive output of the corresponding diode assembly, and the negative outputs of each diode of the assembly are connected to tires associated with punches of the writing matrix. chs AND L // Tsdtg sh iggg l er and r. 2 18 KiaSfa f {/ hl 1 2 b S 6 of FIG. five