SU797914A1

SU797914A1 - Device for stepwise motion of typewriter carriage

Info

Publication number: SU797914A1
Application number: SU782607061A
Authority: SU
Inventors: Владимир Ильич Бояринцев; Николай Семенович Дадуков; Юрий Евгеньевич Ершов; Владислав Владимирович Мазюкевич; Анатолий Семенович Шиманель; Борис Иванович Зиновьев
Original assignee: Предприятие П/Я А-1680
Priority date: 1978-04-18
Filing date: 1978-04-18
Publication date: 1981-01-23

Description

54) УСТРОЙСТВО ДЛЯ ШАГОВОГО ПЕРЕМЕЩЕНИЯ КАРЕТКИ ПИШУЩЕЙ МАШИНЫ54) DEVICE FOR STEP MOVEMENT OF THE CARRIAGE CALLING MACHINE

1one

Изобретение относитс к устройст ам дл шагового перемещени каретки машин и может быть использовано в печатающих устройствах последовательного принципа действи , примен емых в оргтехнике, вычислительной техники и технике св зи.The invention relates to devices for the stepwise movement of the carriage of machines and can be used in printing devices of a sequential principle of action, used in office equipment, computer technology and communication technology.

Известно устройство дл шагового перемещени каретки пишущей машины, содержащее смонтированный в корпусе храповой механизм, храповое колесо которого кинематически св зано с кареткой, средство дл перемещени собачки и электромагнит 1.A device for stepping the carriage of a typewriter containing a ratchet mounted in the housing, the ratchet wheel of which is kinematically associated with the carriage, the means for moving the pawl and the electromagnet 1 is known.

Недостатком известного устройства вл етс то, что за цикл работы оно обеспечивает перемещение каретки печати лишь на один шаг и при этом дл организации пробела между печатаемыми знаками текста затрагиваетс цикл его работы-.A disadvantage of the known device is that for a cycle of operation it provides for the movement of the print carriage only one step and, at the same time, for organizing a space between the printed text characters, the cycle of its operation is affected.

Цель изобретени - повышение скорости печати.The purpose of the invention is to increase the printing speed.

Поставленна цель достигаетс тем, что устройство имеет двуплечий рычаг, одно плечо которого св зано с корем электромагнита, а второе размещено под собачкой, и датчик, считывани сигнала пробела, приThe goal is achieved by the fact that the device has a double-arm lever, one arm of which is connected to the electromagnet core, and the second is placed under the dog, and the sensor, reading the space signal, when

этом датчик считывани включен в питани электромагнита.This readout sensor is included in the power supply of the electromagnet.

На чертеже изображена кинематическа схема устройства дл шагового перемещени каретки пишущей мгииины.The drawing shows a kinematic diagram of the device for the stepwise movement of the writing carriage.

Устройство содержит храповой механизм , который состоит из храпового колеса 1, кинематически св занного посредством тросика с кареткой The device contains a ratchet mechanism, which consists of a ratchet wheel 1, kinematically connected by means of a cable with a carriage

0 2, рабочей собачки 3, зубчатой рейки 4, смонтированной в корпусе устройства , а также фиксаторной собачки 5, установленной на каретке 2.0 2, working dog 3, toothed rack 4 mounted in the device case, as well as locking dog 5 mounted on the carriage 2.

Привод рабочей собачки состо щий Drive a working dog consisting

5 из кулачка 6 и рычага 7, на котором шарнирно закреплена рабоча собачка 3.5 of the cam 6 and the lever 7, on which the working dog 3 is hinged.

Механизм управлени рабочей собачкой 3, включающий в себ двуплечий рычаг В с рабочими плечами 9, элект0 ромагнит 11, главный вал 12 с кулачком 13, а также датчик 14 считывани сигнала пробела, причем датчик 14 включен в цепь питанц электро5 магнита 11.The control mechanism of the working dog 3, which includes a double-arm lever B with working arms 9, an electromagnet 11, a main shaft 12 with a cam 13, and a sensor 14 for reading the gap signal, the sensor 14 being included in the circuit of the electromagnet 11.

Claims

The mode fills a space between text characters and prints next to a space character in one cycle of the typewriter, or the text character printing only mode, which matches the character printing after the carriage moves the carriage by two or one step in one work cycle, is determined by the state of the electromagnet 11, those. under current or in. The de-energized state is last. When a space signal arrives in the electronic control unit of the writing meoiyn, the last is a request for the text following the space and when the character of the letter carrier is selected, the information about the space is read by the sensor 14, which turns on the electromagnet 11, as a result of which the carriage alternates steps. In the absence of a gap signal, the switching on of the electromagnet 11 does not occur, as a result of which the carriage is moved one step. The device works as follows. At the end of each cycle of the printing unit, the cam 13 of the main shaft 12 by the lever 15 sets the arm 9 connected with the electromagnet 11, the lever 8 into position (shown in FIG. 1 by a solid circuit) in which the spring 16 removes the core 17 to the electromagnet holding position 11 In the one-step advancement mode of the literate carrier, at the beginning of the cycle, the sensor 14 is triggered, the current signal is read into the electromagnet 11 by the current parcel, creating a magnetic flux that holds the bark 17, the spring 18, and the lever 9 in the cocked position .. At the same time ten ychaga 8 occupies a middle position in which the bevel shoulder on October 19 overlaps the first ratchet tooth 1 and does not allow it to capture tooth ratchet pawl 3 in its two-step moves, to the lever, a follower of a cam used lowercase. As a result of this, with the average position of the shoulder 10, the dog 3, in the first half of its two-step stroke, slides over the bevel 19 of the shoulder 10, gripping only the subsequent tooth of the temple of Povik 1 and moving it one step during the second half of the two-step movement of the dog 3. Ratchet the wheel 1 is kinematically connected with the carriage 2 carrying the printing medium so that the stepwise movement of the latter in rows corresponds to the stepwise movement of the ratchet wheel 1. In the gap execution mode, the electromagnet 11 is de-energized. The magnetic flux in the latter does not occur and the arm 9 of the lever 8 moves to the lower position under the action of the spring 18, overcoming the weaker spring 16. The lower position of the arm 9 of the lever 8 corresponds to the lower position of the arm 10, in which the bevel 19 does not prevent the dog 3 from engaging the first tooth ratchet 1 and its movement by the magnitude of the two-step stroke of the dog 3, and moving the bearer two steps along the line to perform the pro-. is white. After the gap is executed, the same cycle is printed after the symbol of the incoming information after | In the mode of returning the literary carrier to the beginning of the line, from the kinematics of the return, pressing arrow 11 on the arm 10 of the lever 8 is opposite to the bevel 19, switching it to the return time to the upper position at which the dog is 3 elevated. to the position of uncoupling with the ratchet 11 due to raising up the bevel 13 of the shoulder 10. Thus, the ratchet 1 and the bearer are released to perform a rolling movement to the beginning of the line in arrow 1, after which the impact on the shoulder 10 in arrow 11 is removed and the spring 18 to the end the cycle brings the measles 17 to the contour position of receiving subsequent packages in electromagnet.11 and at the same time places the arm 10 in the middle position. The proposed device makes it possible not to spend time working out between the characters of the text spaces and, therefore, to increase the average speed of consecutive printing devices up to 20%. The invention can be applied in all types of devices with advancing along the line of a print media carrier, Formula of the Invention A device for stepping a carriage of a writing machine, comprising a ratchet mounted in the housing, the ratchet wheel of which is kinematically connected with the carriage, the means for moving the dog and the electromagnet characterized in that, in order to increase the printing speed, it has a double-arm lever, one shoulder which is associated with the electromagnet cortex, and the second is placed under the dog, gap sensor reading signal, the reading sensor included in the power circuit elektromagnita.Istochniki information received note in the examination 1. Copyright certificate USSR № 166369, cl. B 41 J 23/34, 1963.