DE2301574A1 - SERIES PRINTING UNIT - Google Patents

Description

230157 A

Berlin, January 10, 1973

Mail merge

The present invention relates to a serial printer for use in a calculating machine or a computer, which is able to assign both amounts and characters or symbols indicating the type of amounts to press·

Serial printing units for calculating machines are known »A known printing unit is suitable for printing the relevant operating symbols on the side of an amount and has a type drum arranged behind the sheet of paper »This drum carries so many vertical type rows or

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-groups, such as pressure points in a print line are * Carry one or two of these vertical rows or groups arranged to the side of the amount. Operating symbols, while the other vertical rows carry the digits and the algebraic characters »The type drum is continuously rotatable, whereby the characters are printed out in rows by means of a hammer that is placed in front of the sheet of paper and moves across the drum» A printing unit of this type is generally very fast, but has fairly complex electronic controls and may have incorrect or fuzzy characters printed. generate _e

Printing units are also known with a type head that contains a group of symbolic or alphabetic characters and has a group of numerical characters «These characters are each separated by a Combination of Gode signals assigned to them selectable »The selection circuits for printing units of this type make a high decoding capacity necessary and have a fairly limited speed due to the large number of movements that are made in each print cycle are necessary to select all the characters carried by the head »

In addition, printing works are known in which the writing

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characters are arranged in two separate zones, which can be preset for printing with the help of a transport mechanism are »With these printing units, the transport mechanism is activated by an electronic control be steered, actuated by a combination of coded signals supplied by the controller of deviations of the electronic part during the operation of the printing unit remains that of the last transport operation selected zone for printing preset This could result in a subsequent print cycle for printing of a character in a zone that is defined by the expected deviations, which would consequently be wrong »As a result, complicated monitoring devices are required, to prevent this possibility and the return of the printing unit in a predetermined ineffective To ensure position ^

The object of the invention is to create a mail merge that is sahne.ll and very reliable and one Transport mechanism that works in the reciprocal position of the symbols in relation to the digits in a print line is operated o

Accordingly, in a mail merge, with a type head for printing numerical amounts and symbols indicating the type of these amounts on predetermined

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th character positions, which has numerical characters and symbol characters, which are divided into two separate Zones are arranged with a transport or switching mechanism that can act on the type head to preset one of these "two zones" for their printing, and with a stylus selector that shares for the numeric characters and for the symbol characters A special character can be used for printing in the transport mechanism Select preset zone, programming according to the invention means en be provided which are arranged so that they the transport mechanism in the way control that it is at each of the predetermined character positions Presets a particular one of the two zones for printing O

In other words, the subject matter of the invention is a serial printer for printing numerical amounts and the type of symbols indicating the amounts at predetermined locations, in which a type head has a group of numerical characters and a group of symbolic characters, which are arranged in two separate zones that are used for printing can be preset by a transport or switching mechanism ₉ and in which the characters in each group are represented by a common font

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Character pickers are selectable, with programming facilities that cycle through each of the predetermined positions of the head can be set to control the switching mechanism in such a way that the corresponding zone for printing is preset will"

The predetermined positions are advantageously consecutive Place in a number of them, the programming facilities also operating the character selector control in parallel with the shifting of the printing point in order to select the one to be printed from time to time Select characters from the preset zone *

The programming devices can be a counting device for counting the number of selected characters that are involved in the operations of the switching mechanism that of the voter alternately follow one another after a predetermined number of selected characters can leave, each operation of the switching mechanism the other zone than the one up to the operation of the switching mechanism preset zone presets ο

The printing unit can also be designed in such a way that the counting device a selection probe that can count the cycles of the selector to operate the switching mechanism, and contains a visual sensor that controls the operations

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of the switching mechanism can scan to the selector in To set operation »

It is also proposed that the programming facilities a clutch for controlling the shift mechanism and a select clutch for controlling the selector, the shift and select clutches being connected by a Synchronizing device are connected to each other, the driven part of the selection clutch with the corresponding driven part of the clutch in over- ^ synchronize attunement with a predetermined phase can"

It is useful if the synchronizing device consists of a common cylindrical part with a Drive part of the clutch forming the first axial Part and forming the drive part of the selection clutch second axial part, which are each provided with coupling openings formed in the two parts, into the corresponding coupling claws carried by the drive parts can intervene »

In the case of a printing unit with a starting electromagnet, which is controlled by an electronic control unit of the printing unit can be activated, it is recommended that the clutch and the selection clutch by a corresponding control

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element can be put into operation, which is movable with the corresponding driven parts and by the selection sensor or «the switch sensor in the given order is controlled, the control element of the clutch normally being controlled by one of the starting solenoid controlled G-member locked isto

It is much more useful when the switch sensor has the control of the select clutch in the rest position and the clutch stops operating, whereby the switch sensor is shifted by a program cam that is driven by the Part of the clutch is set} to operate the select clutch in the order listed to set o

In a further development of the printing unit it is provided that the selection sensor is normally arranged in the path of movement of the control element of the clutch _? in order to put the clutch out of operation after a predetermined rotation of its driven part, wherein the driven part of the selection clutch sets a selection cam which can push the selection sensor out of the path of movement of the control element of the clutch in order to put it back into operation after a predetermined number of selection cycles set"

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It is also proposed that this be done by the starter solenoid controlled limb also in the movement tooth the control of the clutch can be brought to save it regardless of the selection control curve To set operation »

Bs is also advantageous when the driven part of the Clutch also sets a control cam, which the glass independent of the starter magnet can temporarily hold in the path of movement of the control element of the clutch, so at least independent of the control of the start solenoid by the start solenoid en a complete selection cycle for symbol characters and for numeric characters starts »

for a printing unit in which the feed circuit is one of the Switching and the selection clutch driving electric motor by a switch actuated by the starter solenoid is controlled, it is recommended that the switch also "under control by the driven part of the clutch is kept closed, so that the drive parts of the switching and the .Ausselkupplung independent of the Starting electromagnet be kept rotating until an Itruck cycle has been completed »

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In a printing unit in which the head can be moved transversely to the platen, the transverse movement is expedient a snail causes »which is set up in such a way that it sets a carriage carrying the type head in motion, by being set in rotation by the driven part of the selection clutch ©

A printing unit is also advantageous with one due to the alternating position of the carriage with respect to the platen controlled stop element, around the by the Start solenoid controlled member in such a position to note that the recommissioning of the Clutch for a new pressure cycle until the type head returns to its rest position opposite the Platen is prevented

If the selector contains a plurality of selector solenoids [f which can selectively hold a corresponding plurality of actuating elements, which by means of a guide element with the respective. Magnetic core are brought into contact for selecting the characters, and in which a synchronizing element removes new data from a memory at the end of each selection cycle, it recommends that the Kachführelement adjusted by the driven part of the selection clutch and adjusted by the driven part of the clutch

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Tracking cam is controlled? around at the end of each Print cycle of all actuators with the cores to bring the respective selector electromagnet into contact.

A printing unit with a scanning element is particularly useful, for the actuators, which can sense the setting of the actuators to the impact effect of the type head if none of the actuation selem ent e has been set »

It is also proposed that the switching mechanism contains a differential, the output of which to the type head is connected, a first input of the differential being driven by a transmission device to the Part of the clutch and a second input of the differential connected to an output element of the selector is"

If the voter selects the characters of each group starting from a corresponding rest position of the head, It is advantageous that when the head is in the rest position, the characters in both zones are eccentric to the platen lie, with the driven part of the clutch one or the other of these zones in correspondence with the shutdown of the clutch on

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End of the predetermined rotational movement of your driven Centered rope "

If the type of head consists of a cylindrical sleeve with a substantially vertical axis and supported by a displaceable on a transverse support carriage is _s, it is expedient that the sleeve a gear is connected via at least, the parallel with the Viagenträger and extends over the entire transverse movement path the head extending toothed roller is engaged, which is set by the selector *

If the carrier is rotatable on its holder _{9 in} order to bring the selected character into engagement for printing, a gear rim made of one piece with the type head socket can be provided, the gear wheel having teeth which are arranged so that they are on the face of the Gear axially with the ring gear and laterally radially with the toothed roller in engagement, this engagement also being partially maintained during the rotational movement of the carrier for printing the character *

If the type head box is on a support shaft of the carriage is rotatable and displaceable, it is advantageous that the socket is provided with longitudinal grooves into which a on the

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Carriage rotatable inner plague control element can intervene before printing the selected character »

It is also expedient that the worm comes into engagement with a toothed rack which can be brought into engagement with the worm by a cam disk carried by the driven part of the clutch _9, which rotates with a shaft driven by the selector clutch, but axially on it is displaceable, whereby the pre-stroke cam releases the rack at the end of the printing process of a printing line from the screw for the elastic return of the carriage to its rest position. "

When the selector has at least one presetting setting element and one that is cyclically movable in one direction Contains selector that has at least one presetting cam carries, which can cooperate with the presetting adjustment element to the selection element in a second To move direction, it is recommended that the selector provided with a group of setting cams that cooperate with the adjustment facilities can when the selection element is shifted by the presetting element in the second direction to see to move a changeable amount in the second direction and thereby the characters of the type head to select

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It is recommended that the setting devices consist of a There are a series of setting elements assigned to the corresponding characters in each zone of the type head, which can be set individually to interact with the setting cams of the group »

When the selection element is axially on a drive shaft with cyclical rotation in the second direction displaceable and rotatable with her drum and the centering member cooperates with the drum to them to bring back to a rest position after the variable movement, it is advantageous that the pre-setting Setting element to another pre-setting setting element is assigned in such a way that the adjustment of one corresponds to the withdrawal of the other and vice versa, where the preset setting items with a corresponding pre-setting cam can cooperate to move the drum from its rest position in one direction or to move axially in the opposite direction »

In addition, it is proposed that the setting cams of the group be designed to be essentially helical and are arranged in pairs, the cams of each pair being bevelled in opposite directions are, while each of the setting elements has a corresponding

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the pair of these cams is assigned to match the one or other squats of the couple to cooperate *

Finally, it is proposed that the adjusting elements of the series corresponding locking levers with in the Movement path are assigned to at least one associated setting element arranged arms, which in the Locked position for the other locking elements fluctuated when the associated adjustment element is set is, wherein the arms of the levers interact mutually so that the pivoting of a lever into the locking position a corresponding pivoting of the adjacent Eebel is generated »

A preferred embodiment shown in the drawing the invention will be described in more detail below show?

fig * 1 is a partially exploded perspective rear view of the printing unit according to the invention,

Figure 2 is another partially exploded perspective Rear view of the printing unit,

3 is another partially exploded perspective Rear view of the printing unit,

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4 a perspective rear view of a detail of Pigο 1,

Fig «5 is a side view of a detail of Pig» 3 »

]? ig «> Figure 6 is a working diagram of a number of details of the printing unit,

j 3? ig. Figure 7 is a working diagram of a number of details

j after Pig »1»

Figure 8 is a working diagram of a number of details : after Pigο 3 »

Pig »9 a plan view of a development of a detail according to Pigο 3 _f

pig * 10 a plan view of a development of another Detail according to Pigo 3 *

Pig 11 is a plan view of a Pig detail. 1 in a schematic representation,

Pigo 12 is a block diagram of the electronic control of the Printing unit *

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The printing unit shown has a cylindrical print head 41 (! Fig. 1) ψ which is rotatably mounted on a carriage 22 around a vertical axis, which in turn can be displaced parallel to a platen 21. character-spacing-steps and tilts it in every working cycle in order to cause the selected type face to hit the platen, as long as this effect is not excluded by a blank character · Non-numeric symbols are printed in the first two letter positions , while numeric characters of a numeric amount, also known as digits, are printed in the remaining letter positions. This distinction between symbols and digits is retained throughout the rest of the description, it being understood that "digits" include the comma and the minus sign. Characters include both symbols and digits »

The symbols and numbers are in around the printhead The symbols are arranged in two rows, six of which occupy half of the outer circumference of the head Columns (making a total of 12 symbols), and the twelve digits are in six columns that occupy the other half of the outer circumference »

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Before the first symbol is selected, a transport coupling rotates 85 the head with the help of a differential 172 in order to center the symbol sector with respect to the printing point, doh »one on the half between the third and fourth The position in the symbol column is aligned with the print position. In addition, the head is in a vertical direction so arranged that the pressure point is halfway between the two rows of those produced in this way prepared symbol position, the head must be able to select the required digit in both vertical and can be set in the direction of rotation »

After the second symbol has been selected and printed out is, the transport coupling 85 rotates the head over a further 180 ° to produce the preparatory digit position, on which the digit sector is now centered «

Symbol and digit selection take place in exactly the same way, the only difference being whether this selection was made from the preparatory symbol position or the preparatory digit position. The selection of the horizontal rows is determined by an electromagnet 207 (Jig x 3) which in turn determines whether a extension 299 or an extension 215 against a curved path an axially displaceable drum 237 rests, which rotates once for each printing cycle. This determines

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turn whether the drum is to the right or to the left moved, this movement being converted into an upward or downward movement of the printhead by a illustrated in Pig «1 Linkage is converted from a toggle lever 241, a connecting link 243, a lever arm 244, a tilting strip 246, a slide 245 and one on the slide and a tongue engaging a groove in the printhead 251 consists “The upward or downward movement of the head brings the upper or lower row of characters with the Pressure point in accordance »

The column selection requires a rotary movement of the head by 1/2, 1 1/2 or 2 1/2 times the column spacing either to the right or to the left »whereby this turning movement is achieved by turning another drum to the right or to the right 193 (Figo 3) is effected, which has a toothed sector 191 (FIG. 1), which in turn rotates the planetary gear 173 of the Differential 172 rotated The output shaft 159 of the differential carries an elongated pinion 181, which is connected to a Gear 182 on the carriage is engaged »This gear is also in contact with a ring gear 184 on the print head Intervention to turn it »

The sliding movement of the drum 193 is initially through an electromagnet 205 (Figo 3) controlled, which determines whether an extension 277 or an extension 211 against an inclined

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edge 273 or 272 rests against the drum to give it a Initial movement to convey left or right · The Displacement movement of the drum is further controlled by three electromagnets 206 controlled, the individual port sets 212 control., Which with further, at raised parts 261, 262 and the drum existing inclined edges cooperate »This three port sets 212 lead to movements of 1/2, 1 1/2 or 2 1/2 times the column spacing in each case the initial movement of the drum established direction

The printing cycles are set by a programming device comprising the transport coupling 85 and a selection coupling 58 controlled Initially, the transport clutch meshes with a gear 158 forming the input of the differential 172 and rotates it so that the print head is rotated into the preparatory symbol position, whereupon the coupling 85 automatically disengaged during this initial rotation the clutch 85 prepares the engagement of the clutch 58, which then drives the drums 237 and 193 supporting selector shaft 196 and also drives a shaft 29, which controlled the printing process and the advance of the carriage. These two shafts rotate with every revolution of the output gear 56 of the clutch 58 four times each »during the second quarter turn of the gear 56 prepares a curved path 77 carried by it a second one

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Indenting the. Transport coupling 85 before, which is accordingly after printing the second symbol, rotates another 180 to produce the preparatory digit

There now follows a complete, independent description, first of the construction of the printing unit and then of its Arl> e i t sw e i s e ο

Detailed construction

The printing unit has a firmly attached in the transverse direction Platen or paper roller 21 (Pig * 1) and one for the platen 21 parallel movable type carrier * The type carrier 22 consists of one on one in the side panels 25 and 26 dös printing unit attached shaft 24 displaceable bush 2-3 * The bush 23 forms one piece with a Bacfceneiement 27, which is "slidable" in an annular groove of a second bushing 28. The second bushing 28 is against rotation set and iii transverse direction on a hat shaft 29 displaceable} which can rotate between the two side walls 25 and 26 © The socket 28 is also threaded 30 provided, which can come into engagement with a toothed rack 31. The toothed rack 31 is parallel to the platen 21 arranged, extends over its entire length and is with the help of two arms 32 and 33 at one in the two side cheeks 25 and 26 fasten rotatable shaft 34 ig to

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The printing unit also includes a support plate 38 which is substantially horizontal and with a pin 183 from a Piece is made «, this tenon is with a prismatic Part-provided with an elongated hole 35 of the Bakkenelements 27 is in engagement, on which he with the help of a nut 36 and a threaded portion 37 of the pin 183 "is attached to the support plate 38 substantially vertical shaft 39 on which a cylindrical type head 41 is rotatable and displaceable < > The head 41 carries a group of numerical characters and a group of symbolic characters 42, which are in two horizontal. Rows and twelve vertical columns are arranged in a distributed manner. The head 41 is normally arranged in such a way that the Character or type series on the printing point of the The platen are centered »The columns of characters are arranged so that six of them, the Symbol characters, for example, correspond to operating symbols, in one arranged in front of the platen 21 and clockwise at about 22 to the actual platen offset semi-cylindrical zone 40 lie (fig · 11) · The other six, from numerical, for example the ten Numbers, the comma and the algebraic minus sign corresponding to the existing columns lie on their part in a further, arranged on the side facing away from the platen 21 and also at 22 ° to the actual Platen offset semi-cylindrical zone 45

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A helical spring 43 is attached to the jaw element 21 (Pig * 1), which runs around a sweeping roller 44 and is attached to the side cheek 25 of the printing unit. As a result of the action of this spring 43, the carriage 22 (FIG of the side cheek 26, one end of the bushing 23 being locked against a shock-absorbing ring 46 made of rubber, for example *

The jaw element 27 is also provided with a recess 47 provided, which is slidably engaged with a striking strip or approach 48 (Figo 1), which over the the entire length of the printing unit extends »the stripe 48 is with the help of two cylindrical ends between: the side cheeks 25 and 26 rotatable and can bring the types 42 with the platen 21 in contact for their printing with the help of an ordinary ribbon 49 (Mg · 4) « At the right end of the stroke when looking at the drawing Strip 48 is wedged on a ZLeharm 51 (Fig »1), the interacts via a roller 52 and by means of a spring 53 with an impact cam 54 wedged onto the shaft 29 » The diagram of the angle adjustments of the pull arm 51 in the effect of the positions of the shaft 29 is denoted by 50 in FIG.

The printing unit also contains a generally numbered 195

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drew programming mechanism (Figo 2), which has a select clutch 58 and a transport or switching clutch 85 includes ". In detail, the clutch 58 includes one a shaft 61 rotatable and with a gear 56 rotatably driven part 57ο the gear 56 is with meshed with a gear 55, one fourth of its own diameter, mounted on the left end of the shaft 29 is wedged (Figo 2) ο

The drive part of the coupling 58 consists of a hollow cylinder 59 with a central part of the flange wedged onto the shaft 61. This forms the drive shaft and is in turn rotated counterclockwise by an electric motor 62 via a toothed belt 65 when viewing the drawing The cylinder 59 is provided with four windows 63, into which a coupling claw 64 can be inserted, which is driven in two elongated holes of two extensions 66 of the Part 57 is slidably guided *

The coupling claw 64 stands with an opening of a shoulder 69 of a control ring 71 connected to the driven part 57 by a helical spring 72 in engagement

The control ring 71 is provided with four control elements, which consist of lugs offset by 90 ° to one another. One of these lugs is usually against the

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The upper edge of an arm 74 rotatable on a fixed shaft 76 is locked and holds the claw 64 with the windows 63 out of engagement * The driven part 57 is with a four-lobed selection cam 77 -made from one piece and usually by a counteracting one. . Arm 78 locked in the rest position The arm 78 is to the Articulated shaft 76 and part of a selection sensor that consists of a bracket 79 with a further arm 80o which is also articulated to the shaft 76. The arm 78 can act by acting a spring 81 on the arm 80 cooperate with the 'cam 77 o In Fig * 6 is the diagram of the angular adjustments of the arm 78 of the bracket 79 in the effect of Rotational movements of the drive part 59 and the driven part 57 designated by 70

The coupling 85 (FIG. 2) of the programming mechanism 195 has a driven part 84o which can also be rotated on the YiTeIIe 61. On the driven part 84, a program cam track consisting of a cam slot 83 is formed. A pin 82 attached to the arm 74 engages in the slot 83 ₀ in Figo 6 the diagram of Winkelversteilungen the arm is referred to the part 59 and the driven part 84 with 75 effect of movements 74 ©

As a drive part, the clutch 85 has the same cylinder 59,

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which is provided on the right side with a further four openings 90 »which are arranged in such a way that they are offset by 45 ° from the openings 63 driven part 84 is performed _? which in the rest position are arranged parallel to the extensions 66 «,

The coupling claw 86 comes into engagement with an extension 89 of a control ring 91 rotatable on the driven part 84. A spring 92 tensioned between the part 84 and the ring 91 tries to cause the ring 91 to rotate relative to the part 84 and the claw 86 moves in the direction of the openings 90. The driven part 84 of the coupling 85 is provided with three recesses 99 » 100 and 101 . In the rest position, with the help of the helical spring 81, an extension 95 of an arm 97 hinged to a shaft 98 is in engagement with the recess 99. 6 designated by 90. The ring 91 (Fig. 2) is provided with two control elements, which consist of two lugs 93 and 88 offset from one another by 180 °. The lug 93 is longer than the lug 88 and is normally through an extension 94 of a connecting link 96 arrested the claw

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86 holds out of engagement with the openings 90 and the driven part 84 stops ",

The link 96 connects an arm of a '■ to a Fixed shaft 98 hinged bracket 104 with an arm 106 of a hinged to a further fixed shaft 107 Stirrup 117 “The arm 106 is in turn attached to the Plunger piston 108 of a starting electromagnet excited by the control of the printing unit (not shown in the drawing) 109 connected »The plunger 108 is normally closed by the action of a spring 110 on the Arm 106 held pulled out of the electromagnet

The lugs 88 and 93 of the coupling 85 can be locked by an extension 112 of the arm 80. The approach can also be locked by a second extension 111 of the connecting member 76, while the extensions , 94 and 111 to the left of the trajectory of the shorter attachment 88 lie »Another extension 125 of the arm 80 arrests an extension 113 of a lever 114, which is attached to one of the Arm 97 attached pin 115 and hinged to this arm is connected by a helical spring 116, which acts on it in the opposite direction »

The other arm 118 of the bracket 117 can be articulated to a stationary pin 120 by one end of a

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Lever 121 interacting stop slide 119 (Hg, 4) be locked * A spring 122 acting on the slide 119 holds the other end of the lever 121 so that it normally rests against the side of the support plate 38 and strives to move the slide 119 into the movement beam of the arm 118 »However, the action of the return spring 43 prevails over the action of the spring 122, as a result, the end of the slide 119 is normally out of the path of travel of the arm 118 and did not interfere with his movement

The driven part 84 (Figo 2) of the coupling 85 has a control cam 123> which can cooperate with an arm 124 of the bracket 104 _o The action of the spring 110 via the arm 106 and the connecting member 96 causes the arm 124 to normally oppose the cam plate 123 abutted A pin 127 fastened to a cam lever 129 abuts a lower extension of the arm 124. This lever can in turn interact with the cam disk 123 on the side diametrically opposite the arm 124. A member 132 is hinged to the lever, which is displaceable in a fixed guide 128 and is acted upon by a spring 131 in order to keep the pin 127 resting against the arm 124 and the lever 129 in action

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the angular positions of part 59 and part 84 with 133 or "135". The slide 132 (ligo 2) holds in turn with the help of a # s pin 134 normally the Contacts of a generally designated 138 and with the supply circuit of the motor 62 in series switch opened"

The driven part 84 of the clutch 85 also has a Mach guide cam 139 »which cooperates with a pin 141, attached to a first arm of a lever 142 articulated on shaft 76 "against a second A pin 144 of a rotation 146 wedged onto the shaft 34 rests on the arm of the lever 142. One at one end A spring 143 attached to a pin 145 of the rotary ring 146 causes the contact between pin 141 and the cam disk 139 and between the pin 144 and the lever 142, the rack 31 with the threaded bushing 28 is held out of engagement »In Fig. 6 is the diagram the angle adjustments of the lever 142 starting from its rest position as a result of the rotary movements of the parts 59 and 84 marked with 140 "

The other end of the spring 143 is connected to a lever 147 hinged to the shaft 98, which normally engages by means of a pin 148 in the saw teeth of the gear 149 wedged onto the platen 21 (Hg, 4) »

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A pawl also acts with the sawtooth gear 149

151 together, which are attached to a lever which is rotatable about the shaft 98

152 is hinged · The pawl 151 is acted upon in the direction of the teeth of the gearwheel 149 by a spring 153 tensioned between the pawl 151 and the lever 152. A pin 154 attached to the lever 152 is in turn connected to another. Kurvenscheibensehlitz 156 of the driven member 84 of the clutch 85 is engaged · This cam causes the lever 152 in effect of the rotational movements of the parts 59 and 84, an angular displacement _f is 6 denotes in Fig * 155 _s and forms, together with the pawl 151 (Figo 2) and the sawtooth gear 149 the line switching mechanism of the printing units »Finally, the driven part 84 of the transport coupling 85 with a gear 157 is made of one piece, which meshes with a gear 158 (Fig. 1) of the same diameter, which is shown in the side cheek 26 is rotatably mounted »A transverse shaft 159 is in turn rotatable in the side cheek 25 and in a bushing made in one piece with the gear 158. The gear 158 is made in one piece with a bevel gear 171, which is the first ring gear of the differential 172 formed te. The gear wheel 171 meshes with another bevel gear 174 via an epicyclic bevel gear 173, which forms the second ring gear of the differential 172 and is keyed to the shaft 159 »

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A toothed roller 181 is also keyed onto the shaft 159, which extends over the entire width of the printing unit »The toothed roller 181 engages on the Pin, 183 of the support plate 38 rotatable gear 182 a »The teeth of the gear 182 are when viewed from Fig «1 to the left and in turn engage in one the head 41 a one-piece gear rim 184, between the head 41 and the driven part 84 create a one-to-one transmission ratio of the clutch »

The bevel gear 173 is rotatable on a shaft 159 Holder 186 rotatable, which is provided with a toothed section 187 on the side opposite the drive 173 which is connected to the teeth of a cup-shaped toothed sector 188 rotatable on a fixed pin 189 is in engagement The sector 188 is in turn made of one piece with another toothed sector 191, the one with a number of formed in a selection drum 193 Annular grooves 192 is in engagement »The drum 193 (FIG. 3) is on one between the side cheeks 25 and 26 of the printing unit rotatable shaft 196 attached to it in a rotationally fixed manner and by the action of a shaft 196 generally indicated at 194 designated character selector, to be described in more detail below, can be displaced in the axial direction «The

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Shaft 196 represents the drive shaft of the character selector 194 and when considering Pig »2 its left end a gear 197 corresponding to the gear 55, which is also driven with the gear 56 of the Part 57 of the selector clutch 58 is engaged *

The programming mechanism 195 of the printing unit controls, as will be described in more detail below, via the transport coupling 85 and the differential 172, the transport mechanism of the head 41 and, via the selection clutch 58, the character selector 194 *

When looking at FIG. 3, the shaft 196 carries a synchronizing cam disk 198 at its right-hand end, which actuates a lever 199 which is rotatable about a shaft 200, which in turn moves in the stationary frame in accordance with a movement designated 195 _{in Mg 0 7} s diagram is rotatable * A slide 201 is hinged to the lever 199 (Figo 3), which by the action of a spring 202 keeps the lever 199 in contact with the active profile of the cam disk 198 o The slide 201 carries a small magnet 203 at one end, which when it is moved, the contacts of a read-out relay 204 known per se can close in order to retrieve the characters belonging to a character to be printed from the electronic control

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Calling up signals »These signals control the optionally Excitation of a number of selector magnets 205 »206 and 207ο contained in the character selector 194 Electromagnets are energized, they can hold a corresponding series of armatures 208, 209 and 210, which in turn are hinged to one of the actuating setting elements 211, 212 and 213 o

The printing unit is particularly suitable for electronic calculating machines and has a storage unit 403 (Figo 12), in one part of which a work program is recorded is, while another part forming the computation memory is reliable and flawless in a manner known per se encoded Yier-bit data «, Das Speicherwerk 403 is connected to a computing device 404 and to a keypad 407 via an input interface circuit 406 The storage unit. 403 is also available via its input 405 connected to the readout relay 204 (Figo 3),

Two outputs of the storage unit 403 (Fig. 12) are about an amplifier 410 to the electromagnet 109 or »via a Yier bit decoder 411 to the interface circuit 412 connected circuit 412 is in turn over an amplifier unit 409 connected to the electromagnets 205, and 207 of the character selector 194 · The Storage unit 403 can contain the part contained in the computing memory

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teten data under control by the keypad 407 or the arithmetic unit 404 or under control by the readout relay 204 optionally transferred to the decoder 412 in a manner known per se. The storage unit 403 lasts until energized the electromagnet 109 at the end of the transmission of this data

The content of the arithmetic memory part of the storage unit 403 can also be deleted by a delete key 414 ^ which also the inactivation of the electromagnet 109 and causes the generation of a code that activates all magnets 205, 206 and 207 »

In addition to the coded data relating to the characters to be printed out, the storage unit 403 generate a space bar code which energizes all of the electromagnets 206 of the character selector 194 and thus excludes printing as described in more detail below

The setting elements 211, 212, 213 of the character selector 194 (Pig * 3) have a lower extension 216 on which a corresponding L-shaped arm of a single leaf spring 214 acts. The spring 214 is attached to the shaft 200 and holds the armature 208, 209 , 210 normally in contact with the cores of electromagnets 205, 206, 207

-34-309835 / 0311

tion * A pulling arm 217 is attached to the shaft 200, which is provided with a pin 218, * which engages with an elongated hole 219 of a connecting member 221, which in turn is articulated to the pivot lever 142 (FIG. 2). In inactive position the pull arm 217 is held by the action of the helical spring 222 with its pin 218 when viewed from, Fig. 2 at the left end of the elongated hole 219 »A tracking element is also attached to the shaft 200 (Fig. 3), which consists of a second pull arm 223, which is provided with a pin 224 _? which can interact with a port set 226 of the lever 199 »

The setting elements 212 are each controlled by a spring 220 held against the leaf spring 214. On the other hand, the adjusting element 211 is through a pin 282 and an elongated hole 283 connected to a lever 279 which is articulated to a fixed shaft 281 and with the help of a Coil spring 215 the adjustment element 211 normally holds against the spring 214 »The setting element is accordingly 215 by a pin and an elongated hole. a connected to a shaft 284 articulated lever 301 ^ wöbet it is held by a helical spring 235 so that it rests against the spring 214 »The action of the spring 214 outweighs that of the springs 215, 220 and 235»

The adjustment elements 211 and 212 of the electromagnets 205

-35- .30983 5 / .0 3Ö 1

and 206 are arranged in front of the drum 193 and can with Curve sections of the drum 193 cooperate in order to move them along the V / eile 196 by variable amounts and in a manner to be described in more detail below, to select a corresponding column if the corresponding Magnets 205 and / or 206 are de-energized »

The setting elements 212 can also by a corresponding Series of lugs 227 of a bracket 228 rotating around the shaft 200 are scanned »An arm 229 of the As a result of the action of a spring 230, the bracket 228 interacts with a cam disk 231 wedged onto the V-file 196, which normally holds the lugs 227 over the adjustment elements 212 «The diagram of the movements of the Arm 229 in the effect of the angular adjustments of the Y / elle 196 is designated 240 in FIG. 7 »To the arm 229 (Fig. I) is a "link 232 hinged, which by means of a L'angloches 233 through the cylindrical part of the blow bar 246 is guided »which is rotatable in the side cheeks 25 and 26. The connecting link 232 is with a Extension 234 provided, which can lock an approach 236 of the pulling arm 51 "

The adjustment element 213 (Figo 3) is in front of a second selection drum 237 arranged, which rotatably with the shaft 196

309835/0381

and is axially displaceable on it * The drum 237 has Cams that are connected to the by the selection magnet adjusted adjustment element 213 can interact, in order to be displaced along the shaft 196 so as to be changeable as a function of signals picked up from the memory The drum 237 is provided with a hooking groove 238 into which one in turn is fixed to one Pin 242 articulated toggle lever 241 attached pin 239 engages «, the toggle lever 241 is via a link .243 connected to a pull arm 244 (1 ″ igo 1) firmly connected to the saw bar 246

The beater bar 246 is slidably engaged with a recess 247 at the lower end of a plate 245 of the carriage 22 »Me plate 245 is provided with a recess 25Q and a slot 248, with the help of which it can pass through a cylindrical part of the nut 36 or ο the socket The plate 245 also carries a block 249 »which ends in a rod 251 which is slidably engaged with an annular groove 252 of the head 41 _{or the like}

The block 249 has a substantially octagonal cross-section with two perpendicular surfaces against which normally two Y-shaped ends 253 of two arms one in two Windings around the cylindrical portion of the nut 36 are wound adjustment spring 254.

-37-309835 /0381

~ 37 -

The positions of the toothed roller 181 (FIG. 1) are articulated to the shaft 200 with a large margin Corrected lever 161, which can mesh with the teeth of toothed roller 181 with one toothed end »The lever 161 is made with the aid of a spring 163 and in accordance with a movement diagram denoted by 155 in FIG pivoted by a cam 162 wedged on the shaft 196 o

The head 41 is hollow and with twelve columns of characters or type 4.2 corresponding longitudinal grooves 164 (Figo 11) * A toothed end of a lever can be inserted into these grooves 165 engage, which is rotatable about the bush 23 and free in a corresponding axial slot 150 of the shaft 39 is pivotable © The lower end of the lever 165 is provided with a recess and in turn acts with a Pin 166 of a lever 167 together, der.an one to the Plate 27 attached pin 168 is articulated. The lever 167 in turn acts through the action of an intermediate the pin 166 and the plate 27 tensioned spring 169 with a cam disk 170 formed on the bushing 28 and moves in accordance with a diagram labeled 175 in FIG. 7 »

The printing unit works in the following way

-38- 3Ö9835 / 0381

Selection of symbols

At the beginning of the working cycle, the storage unit 4-03 (FIG. 12) of the printing unit control, as a result of a command from the keypad 407 or from the arithmetic unit 404, sends a start signal to the electromagnet 109 via the amplifier 410 in a known manner. In addition, it leads via the decoder 411, the interface 41.2 and the amplifier group 409 send a series of signals representing the first symbol to be printed to the selection magnets 205 τ 206 and 207 (Pig * 3) The connecting link 96 shifts to the left when looking at the drawing, detaches the extension 93 of the ring 91 from the corresponding extension 94 and causes the bracket 104 to pivot and bring the end of the arm 124 over the cam plate 123. The lower extension of the arm 124 pivots the lever 129 clockwise, the slide 132 moving to the left when viewing the drawing r pushes and the contacts of the switch 138 closes »The electric motor 62 is set to G-ang and causes the shaft 61 connected to it to rotate counterclockwise»

The ring 91 now rotates with the aid of the projection 89 the clutch 85 slightly counterclockwise and pushes the clutch pawl 86 against the inner surface of the already

3G9835 / G3S1 ^ ⁹ "

_ 39 -

circumferential hollow cylinder 59 · This inner surface slides on the claw 86, Ms the claw 86 comes into engagement with one of the openings 90 o In this way the driven Part 84 is carried along by shaft 61 and "also begins to rotate counterclockwise" Bas gear 158 now sets the [ring gear 171 (Fig * 1) of the differential 172 in rotary motion «Via the revolving drive 173 the other ring gear 174 and the toothed roller 181 are set in rotation, as a result of which the drive 182 is rotating of the head 41 around the shaft 39 counterclockwise in the Way causes the containing the symbol characters Zone 40 (Figo 11) is centered on platen 21

When the driven part 84 (Figo 2) is about 12 has rotated, the cam 139 allows the spring 143 to cause the lever 142 to move with the aid of the rotary ring 146 and the pin 144 rotates counterclockwise (see also the diagram 140 in Fig. 6), where he the connecting link 221 shifts to the left »Then the pull arm 217 pivots together with the shaft 200 by action the spring 222 clockwise until the pin 224 of the pull arm 223 (Fig. 3) with the extension 226 of the lever 199 is brought into contact * The setting elements 211, 212 and 213 'move due to the action of the springs 215, 220 or 222 from the cores of these magnets by

309835/0301 ~ ⁴ ° -

the. Arms follow the leaf spring 214, these adjustment elements move upwards towards the drums 193 and 237 and are adjusted in this way in order to cooperate with the respective cam sections. On the other hand, the adjustment elements 211, 212 and 213 corresponding to the energized electromagnets remain in their unadjusted position , whereby the respective armatures are in contact with the cores of the corresponding electromagnets. " Effected with the aid of the shaft 34, the clockwise rotation of the rotary astride 146 (Fig. 2) in turn, the engagement of the rack 31 in the threaded sleeve 28 transitions _e

In this first stage of rotation of the driven file 84, the pin 82 of the arm 74 is through a first part out with increasing radius of the cam 83 (see also diagram 75 in 3? ig »6) < > In this way, the arm 74 pivots counterclockwise and gives the approach 73 of the selection clutch 58 free · »As a result of the action of the. Spring 72, the control ring 71 rotates slightly counterclockwise, with the help of the projection 69 the coupling claw 64 brings against the inner surface of the cylinder 59 because the openings 63 and 90 are arranged offset from one another by 45 ° are, the claw can only in accordance with rotational movements of the cylinder 59 over 45 ° plus a multiple from 90 to the inoperative position meet one of the openings 63 »If the projection 73 is released, it slides

-41- 309835/0301

consequently the pawl 64 on the inner surface of the cylinder 59 along, keeping the selector clutch 58 released or disengaged

After a preparatory rotation of about 22 ° In the cycle of the driven part 84, the extension 93 of the ring 91 meets the extension 112 of the arm 80 and releases or disengages the coupling 85 while the extension 95 of the arm 97 is inserted into the recess 100 and locked the driven part 84 in the reached position due to the between the gear 157 and the Ring gear 184 (Figo 1) existing gear ratio The head 41 will split one-to-one at the end of the preparatory cycle with the symbol columns centered on the platen 21 locked

When the coupling 85 (3? Ig »2) is released, the claw 64 engages, a further rotational movement of the drive part 59 of 23 ° (G-e including rotation of 45) into one of the openings 63 and closes or engages the select clutch 58 * With help of the gear 56, the clutch 58 now sets the shaft 29 and the drive shaft 196 of the selector 194 (FIG. 3) in motion and starts the selection cycle for the symbol to be printed

When the shaft 196 rotates about 20 ° (5 ° rotation of the part

-42-309835 / 0381

57) has rotated, the cam plate 231 allows The bracket 228 on G-round the action of the leather 230 rotates clockwise and thereby causes the lugs 227 scan the upper profile of the setting elements 212 (see also diagram 240 in FIG. 7) »If as in the case of a To be printed symbol at least one of the electromagnets 206 is de-energized, locks the corresponding set Adjustment element 212 with its upper edge the shoulder 227 »The connecting link 232 (Figo 1} moves only a little to the left, with the corresponding extension 234 outside the path of movement of the attachment 236 of the pull arm 51 remains, so that in this way the pull arm 51 is preset for striking

If in the effect of a space bar code from the storage unit 403, the electromagnets 206 (FIG. 12) are all excited, the setting elements 212 (FIG. 3) are all not set »As a result, the bracket then places the end of the arm 229 when the lugs 227 are scanned against the low profile of the cam disk 231 »The connecting link 232 moves to the left and brings the extension 234 into the path of movement of the extension 236, as a result of which the striking of the arm 51 is excluded isto

In this first stage of rotation of the driven part 57

309835 / 038i ~ ⁴³

act the curve sections of the selection drums 193 and 237 (3? Ig * 3) with the set bin setting elements 211, 212 and 213 together, shifting them axially by a variable amount along the shaft 196 » With the help of the grooves 192 (Figo 1) and the toothed sectors 191 and 188 causes the drum 193j that the Sector 187 and the epicyclic gear 173 of the differential 172 rotate around the shaft 159. Since the ring gear 171 is now stationary is, the other ring gear 174 is rotated together with the pinion roller 181, causing the gear to turn 182 on the pin 183 rotates »The gear 182 transmits the movement with its spur teeth on the ring gear 184, with the head 41 rotating about the shaft 39 and thus selects the column of the symbol to be printed »

The drum 237 moving along the light 196 causes the lever 241 to pivot about the pin 242 7-G so that the pull arm 244 (FIG _e The plate 245 is now displaced vertically and, with the help of the rod 251 ″ and the groove 252, transmits this movement to the head 41, which moves along the shaft 39 and sets the row of the symbol to be printed out, as a result of which the symbol to be printed out now appears the pressure point is ο The setting of the eschifting verification is carried out with

-44-3098 3Ü / 0381

one rotation of the shaft 196 of 120, which corresponds to one rotation of the driven part 57 of the selector clutch, completed as a result of the rotation of the shaft 29 (Fig. 4), the bushing 28 is also screwed onto the rack 31 and begins together with the via 22 to move in the axial direction along the shaft 29 as viewed in the drawing to the right ₀ the spring 254 bears against the inclined side surfaces of the block 249 (Fig "1) and corrects the axial position of the head 41 ο

When the shaft 196 has rotated about 160 ° (.40 ° rotation of the cable 57), the cam plate 162 swivels (see also the diagram 155 in Figo 7) the lever 161 in the Counterclockwise, which in this way blocks toothed roller 181 »At the same time, cam 170 causes the Shaft 29 as a result of the action of the spring 169 that the lever 167 rotates counterclockwise around the pin 168 pivoted (see also diagram 175 in Fig. 7) «The Lever 167, for its part, pivots the lever 165 through the action of the pin 166, its toothed end into a engages the longitudinal grooves 164 of the head 41 and thus corrected its angular position

When the shaft 29 rotates 168 ° (42 ° rotation of part 57) has rotated, the flapping cam 54 gives the roller 52

-45-. 30 9835/0381

~ 45 -

free". If the extension 234 is outside the movement path of the lug 236 is located, the pull arm 51 rotates as a result of the action of the spring 53 together with the bar 48 clockwise «Now the plate or the jaw element 27 rotates on the shaft 24 in the counterclockwise direction and thereby causes the selected symbol to hit the sheet of paper via the ribbon 49 ο If, on the other hand the extension 234 is in the path of movement of the extension 236, the pull arm 51 is after a short Rotational movement locked, with this way-the beating of the head 41 and consequently the printing of the selected symbol can be prevented »

During the following rotation of the shaft 29, the cam causes 54, that the head 41 returns to the inoperative position, the cam disks 162 and 170 the head 41 release and the cam plate 231 returned the bracket 228 to its rest position. The cam plate then effects 198 (Figo 3) that the lever 199 rotates counterclockwise (see also the diagram 195 in Figo 7), wherein the shaft 200 is rotated counterclockwise via the extension 226 and the pin 224 "" In this way brings the leaf spring 214 back the previously set adjustment elements in the inoperative position, the Anchors 208, 209 and 210 with the cores of the corresponding Electromagnets 205, 206 and 207 (Figo 5) come into contact

-46-3098 35/0381

to be brought »

When the driven part 57 has rotated about 60 (240 rotation of the shaft 196), the cam 198 (2? Ig _e 3) shifts the slide 201 to the right until the magnet 203 is brought into register with the contacts of the read-out relay 204 _r which are thus closed * Then a further combination of signals corresponding to a second symbol is read out from the arithmetic memory part of the storage unit 403 (FIG. 12), which via the decoder 411, the interface circuit 412 and the amplifier group 409 optionally the electromagnets 205, 206 and 207 excite ",

When the driven part 57 has rotated about 60 ° (FIG. 2), the increasing profile of the next lobe causes of the cam 77 so that the bracket 79 swivels counterclockwise (see also diagram 70 according to Figo 6) and brings the extension 125 of the arm 80 under the projection 113 of the lever 114 »In this way, the Lever 114 released, being under the action of the Spring 116 the shoulder 113 over the movement path of the arm 80 is moved and is locked against the shaft 98 by an extension of the arm »When the driven part 57 is has rotated about 75 ° (120 ° rotation of part 59) »the arm 80 releases the approach. 93 of the transport coupling 85 of the

-47-3098 3 5/0381

~ 47 -

Extension 112 * Then the ring 91 moves as a result of the Action of the spring 92 quickly counterclockwise and pushes the claw 86 against the surface of the hollow cylinder 59 · Since the openings 90 are offset from one another by 90 ° the claw can only hit an opening by rotating part 59 of 22 ° plus a multiple of 90 °, as a result of which the driven part 84 stopped temporarily.

During the rotary movement of the driven part 57 from about 65 ° to about 90 ° (240 ° - 360 ° of the shaft 196), the cam 198 (FIG. 3) with the help of its sloping profile causes the lever 199 and the shaft 200 to move clockwise rotate (see also diagram 195 in Fig. 7) · The leaf spring 214 leaves the setting elements 211, 212 and 213 », which are optionally set by the springs and the corresponding electromagnets, during the printing cycle of the first symbol which ends when the part 57 has rotated 90 ° (Figo 2), select a second symbol, _etc.

When the driven part 57 has rotated 120 °, the selection of the second operating symbol is complete which is printed out when the driven part 57 is already described with reference to the preceding symbol Way rotated by about 135 ° (180ο rotation of part 59)

309835/0381 ~ ⁴⁸ ~

has «The shaft 29 (Figo 2) has opposite the position of the previous striking process rotated one full turn, and the bushing 28 has shifted one step, as a result, the second symbol next to the previous one in a corresponding to the pitch of the rack 31 Distance is printed »

As soon as the carriage 22 ^{begins to move to the right when looking at I 1} Ig ₀ 4, it releases the end of the lever. The lever 121 now allows the spring 122 to push the slide 119 up to its stop against the side surface of the arm 118, which is raised by energizing the electromagnet 109 (I ¹ IgO 2) «In this way, the locking of the bracket 117 in its rest position is prepared to prevent any premature actuation of the electromagnet 109 before the carriage returns to the beginning. When the arm 80 is turned to the left, the end of the arm 78 remains raised by the cam 77, although the cam 77 faces the arm 78 with a low profile, since the arm 80 is locked by the shoulder 113 of the lever, so that the arm 80 does not can have further influence on the transport coupling 85, until a pre-setting cycle for the number zone 45 (Figo 11} is initiated »'

-49- 3 0 9 8 3 5/0 3 8 t

Ffernzone presetting the Zi

After a 202 ° rotation of the part 59 (FIG. 1Ig. 2) (157 ° rotation of the driven part 57), the coupling claw 86 engages in one of the openings 90, being taken along by the cylinder 59 and the driven part rotates again offset In this stage (rotary movement of one full turn and 268 of the shafts 29 and 196) the relay 204 (Figo 3) has already read a new series of signals from the memory part of the storage unit 403 (Figo 12), which are now on the to be printed Relate amount _e The spring 214 (Fig * 3) again leaves the setting elements 211, 212, 213, which are set so that they select the first numerical character of the amount. Now the head 41 (Fig. 1) rotates clockwise around the shaft 24 and returns to the inoperative position, keeping the gear 182 in engagement with the toothed roller 181 as a result of the rotary movement of the part 84 and with the aid of the ring gears 171 and 174 of the differential 172, the head 41 rotates around the shaft 39j to preset the zone of numeric characters for printing, while it is shifted parallel to the platen 21 due to the rotation of the shaft 29 »

After the part 84 is about to stand still rotated (total rotation of 37 °), the curve

-50-309835 / 0381

disk 83 (! Fig. 2) with the help of a second section of now decreasing radius of its profile (see also diagram 75 in Fig. 6) that the arm 74 rotates clockwise, with its end in the movement-s path of the incoming approach 73 is brought., The profile adjoining the recess 100 with a decreasing radius causes the arm 97 to rotate clockwise (see also diagram 90 in Ug ₀ 6) that the lever 114 rotates about the shaft 98 and thereby releases the arm 80, which rotates clockwise to the action of the eder 81 until the end of the arm 78 is brought into abutment against another lobe of the cam 77 (see also diagram 70 in! ig »6)"

Subject a further rotary movement of part 57 by 8 (total rotation of part 57 of 180 and part 59 of 225 °) the shoulder 73 meets the upper edge of the arm 74 » The clutch pawl 64 is disengaged from the opening 63 and releases or disengages the clutch 58, completing the select cycle for the second and last symbol concludes »The voter 194 (! ige 3) on the other hand remains preset for Selection of the first digit of the amount »As a result of the impact The edge 81 on the arm 80 becomes the end of the arm 78 against the suddenly decreasing profile of one of the lobes of the cam 77 and thus prevents a backward

-51-3098 3 5/0381

~ 51 -

impact of the driven part 57ο

When the driven part 84 moves about 155 to a standstill position has rotated »the cam 123 turns into the lever 129 (see also diagram 135 in Pig. 6) high profile, which keeps it rotated clockwise, and the switch 138 regardless of the position of the arm 124 and thus kept closed by the control by the electromagnet 109 *

After the part has been rotated from the intermediate stoppage position by 158 ° 84 (G-esamtdrehung of 360 ° of the part 59) t causes the cam disc 83 'that the arm 74 pivots counter-clockwise (see the diagram 75 in Figo 6) "The Arm 74 thus releases the shoulder 73 of the ring 71 "so that the clutch 58 is preset for gripping or engagement"

If the part 84 has rotated by approximately 175 °, the cam disk 123 turns the end of the arm 124 to the profile with a smaller radius. On the other hand, since the electromagnet 109 is still energized, the arm 124 remains in the previous position, keeping the connecting link 96 still shifted to the left »When the part 84 has rotated 180 ° from its intermediate standstill position (rotation of one full turn and 22 ° of part 59)

-52-309835 / 0381

230157A

the approach 93 finally to the second extension 111 of the Link 96 and releases the clutch 85 while the extension 88 is locked against the upper edge of the extension 112 * The arm 97 ″ in turn brings the extension 95 in engagement with the recess 101 so that the driven part 84 is blocked »

During the 180 ° rotation of the part 84, the head 41 is (Pig · 1) has been rotated through 180 ° by the gear wheel T57 and the ring gears of the differential 172, so that now the zone 45 of numeric characters is preset for printing and is centered with the six columns of digits 42 on platen 21 (Figo 2) has a low and uniform profile (see also diagram 140 in Fig. 6) the rack in the previous position of engagement with the socket 28 read sen »

Dialing digits

After a further rotation of the part 59 of about 23 ° to the position reached at the end of the presetting process (total one full turn and 45 °) when the transport coupling 85 is now gripping, the coupling claw 64 comes with it one of the openings 63 engages, thereby activating the selection clutch 58

-53- 309835/0381

~ 53 -

In this way, the selector 194 (Figo 3) is in again Activity is set and generates the selection and the printing of the first digit of the amount in the same way as by selecting and pressing the two symbols

The carriage is in the transport stage of the head 41 (Figo T) 22 remained in the position reached at the end of the printing cycle of the second symbol «, the first digit of the amount is therefore printed to the right of the second symbol and one press step away from it, with the corresponding Cycle with one full revolution and 135 ° of part 59 completes »

Immediately after the first digit has been printed, the cam 198 causes a new group of to be read out Signals from the storage unit 403 (Fig. 12) for selection the second digit of the amount »The selected character is in this way owing to the simultaneous Movement of the carriage next to the previous one printed out © When the first lobe of the cam 77 is passed (lig · 2) the arm 78 of the bracket 79 pivots counterclockwise and remains due to the action of the shoulder 113 on the arm 80 in previously based on the selection of the symbols described in this position. In detail, the upper edge of the extension 112 gives when the

-54- 309835 / 03Ö1

57 has rotated by about 75 °, the approach 88 of the transport coupling 85 free, which, however, remains dissolved as a result of the action of the extension 111 on the attachment 93 »

When printing of the amount of the storage plant is one of 403 (Figo 12) the printed numbers and results in each of three digits of the "spacebar" code A _o As a result, a displacement of the carriage is formed 22 (Figo 1) by a step which is not accompanied by a printing so that the digits of the amount are grouped in thousands separated by a space <>

Assuming that there are digits in the amount η

te

and η is greater than or equal to 2, the η selection cycle for the digits is accordingly initiated after a rotation of part 57 of (n + 1) »90 ° and a total rotation of part 59 of 135 + (n - 2)» 90 ° . When the ^nth digit has been printed, after a 60 turn of the part 57, the new signals read out by the relay 204 de-energize the electromagnet 109 (FIG. 2) and energize all the electromagnets 205, 206 and 207. The spring 110 rotates the arm 106 clockwise, causing the end of the arm 124 to rest against the low profile of the cam disk 123. The connecting member 96 returns to its rest position so that the extension 111 controls the control element

-55- 3Ö9835 / 0381

~ 55 -

91 of the clutch 85 releases and there for reactivation presets o Thus the arm 118 is lowered, whereby due to the action of the spring 122 of the slide 119 shifts to the left and see again moved into the path of movement of the arm 118 * on the other hand, shifts the curve exit lever 129 is only a little, there he rests against the high profile of the cam 123 »so that he closes the contacts of the switch 158 and thus keeps the motor 62 running »

"Presetting the symbol zone

For the reasons already mentioned, the coupling claw 86 comes into engagement with one of the openings 90 after a further rotation of the cable 59 of 7 ° (total rotation of 202 + (n - 2) ° 90 °) and thus causes the coupling 85t to sit the driven part 84 is set in rotation again * After another rotation of the part by about 15 ^σ (total rotation of 224 °), the cam 83 (see diagram 75 in Fig. 6) turns the pin 82 a fourth sloping section of its profile , which led back the upper edge of the arm 74 into the movement ahn of the approaching attachment 73. At the same time, the profile rotates the arm 97 clockwise with increasing radius adjacent to the recess 101, so that the arm 80 is detached from the attachment 113 in the manner already described will

-56-309835 / 03Ö1

lent the approach 73 hits the end of the arm 74, the result of which it releases the clutch 58 and completes the selection cycle for the η digit of the amount. that the lever 199 rotates clockwise, as a result of which the leaf spring 214 releases the adjusting elements 211, 212 and 213, which however remain out of engagement due to the excitation of the electromagnets 205, 206 and 207 »·

When the clutch 85 is engaged (FIG. 2), the head 41 rotates (Fig. 1) by rotating the driven part 84 again around the shaft 39 and brings the zone 40 of the symbol again characters in front of the platen 21 »ItLe cam 139 swivels with the now increasing profile Lever 142 clockwise and moves the connecting link 221 to the right when viewing the drawing * With The pull arm 217 in the Swiveled counterclockwise, the leaf spring 214, the adjusting elements 211, 212 and 213 against the cores of the respective electromagnets 205, 206 and 207 pushes to

• ensure that they; all for a new amount ■ The corresponding setting process is ready

Pivoted due to the rotational movement of the lever 142 (Fig. 2) also counterclockwise rotation 146

3 09835/0381 ~ ⁵⁷ ~

~ 57 -

Sinn and "causes the rack 31 to be released from the G-threaded bushing 28 _o The spring 43 then pulls the carriage to the left when looking at FIG. I and causes it to return to its rest position" The cam 156 (FIG. 2) in turn pivots the lever 152 counterclockwise * The pawl 151 acts on the teeth of the gear 149 counter to the counteraction of the pivot lever 147 counterclockwise and thus generates the rotary movement of the platen 21 by one line switching step

After a total rotation of part 84 of 355, the Cam plate 123 gives the lever 129 a suddenly decreasing profile (see also diagram 135 in FIG. 6) When the spring 131 acts on it, the slide opens 132 the contacts of the switch 138, so that the supply voltage is withdrawn from the motor 62 * Due to its Inertia, the motor still performs a short rotary movement that locks the projection 93 on the extension 94 of the Link 96 and for renewed engagement of the extension 95 of the arm 97 in the recess 99 is sufficient, with which the printing cycle of a character line concludes «

From the above description it is evident that the printing mechanism with one of the mechanism 195 of FIG

-58- 309835/0381

* 58 -

existing programming device is provided with the help of des.Bügel 79, the lobed cam 77, the Shaft 29 (FIG. 1) and the pair of elements consisting of the bushing 28 provided with G-thread turns and the toothed rack 31 is set by the position of the head 41 o With the aid of the gear wheel 157 controls the programming device 195 the transport mechanism 157, 158 and 172 in such a way that the symbol zone 40 (fig, 11) or the number zone 45 of the head 41 for printing in correspondence with the position of the two symbols and the position of the digits of the amount is preset »

Responding to a delete command

Depressing the zero or delete key 414 (FIG. 12) clears the contents of the storage unit 403, whereby the electromagnet 109 is deactivated and all electromagnets 205, 206 and 207 are activated. holds the control cam 123 (see also diagram 133 in Figure "6) the arm of the bracket is pivoted 124 104 anticlockwise * the connecting member 96 remains in itself in the path of movement of the projection 93 of the clutch 85 befindendem extension 111 shifted to the left _o the clutch 58 is put into action in good time and starts a selection cycle. As a result of

-59-309835 / 0381

~ 59 _

When all electromagnets 206 are excited, however, the selection drum 193 (I ¹ Ig * 3) stops and the connecting member 232 prevents the head 41 from hitting (Fig. 1) * During this cycle, the clutch 85 is preset by the bracket 79 for restarting , and the relay 204 (FIG. 12) takes a new series of signals from the storage unit 403 * These zero-related signals keep the electromagnets 206 activated, as a result of which no characters are printed described again in operation, presetting the number zone 45 for printing and the clutch 58 for restarting »

When the part 84 has rotated 175 °, the cam plate 123 (FIG. 2) pivots the arm 124 clockwise and brings the connecting member 96 into its rest position zurücko The coupling 58 is, however, due to the locking of the extension 88 on the upper edge of the extension 112 out Operation set Thereupon the claw 64 activates the clutch 58 again, so that a digit selection cycle starts, in which no characters are printed again

With a full rotation and 120 ° of the file 59, a tab of the cam 77 pivots the arm 78 in an anti-clockwise direction and releases the shoulder 88 of the coupling 85 from

-60-309836 / 0381

the extension 112, so that the clutch is preset for its renewed operation o If after the first digit selection cycle is completed, a second is initiated, this also takes place without any impact of the head 41 instead of · During this second cycle, the pawl 86 activates the clutch 58 again, the in turn put out of operation by the arm 74 controlled by the cam 83 at the end of the second digit cycle will"

After the second 180-turn of the part 84 has been completed with the presetting of the symbol zone 40 * the extension 94 of the connecting member 96 locks the Approach 93, the clutch 85 being put out of operation in order to bring the kinematic chains back into their inoperative states

It is thus clear that with a rotation of 175 ° of the part 84 the control cam 123 with the connecting member 96 the extension 111 independently of the electromagnet 109 in the movement path of the control element 91 of the transport coupling 85 halto In this way, even if the solenoid 109 has been previously inactivated, two become Symbol selection cycles and two digit selection cycles

-61-3098 3 5/0381

Voters

The curve sections of the selection drum 193 (FIG. 3) are formed from humps or squats, which consist of two lateral sectors 259 and three intermediate sectors 261, 262, 263, these three sectors have a development of about 160 ° (see also the development plan view 9) and delimit with their flanks four hats 264, 266, 267 and 268 which are arranged alternately at the same distance from one another and parallel to one another inclined sections that converge on three leading edges »In detail, the left plank of the sector 261 is connected over a short distance to the leading edge, and together with the sector 259 it delimits the hat 264 * Starting from the leading edge, the right flank of the sector 261 a chamfered as viewed in FIG · 3 to the right part of the to * extends to the hat 266 ₀ the leading edge of sector 262 is located in the middle of clipboard en the two flanks, each of which delimit the hats 266 and 267 after a part that is equally beveled in both directions. Finally, the right edge of the sector 263 is connected to the front edge over a short distance, delimiting the hat 268 When looking at FIG. 3, a part of the left flank of the sector 263, which runs towards the hat 267, is beveled to the left.

309835/0381 -62-

230157A

The front edges of the sectors 261, 262, 265 are essentially aligned after a generating line of the drum 193, whereby in the rest position they lie in front of and above the movement path of the adjusting elements 212 at an angular distance of about 40 °. The number of adjusting elements 212 is also three , whereby they are displaceable in a U-shaped guide 269 in correspondence with elongated holes ο Each of the setting elements 212 can, if it is set, with the corresponding one of the sectors 261, 262? 263 interact »Specifically, through the interaction of an adjusted setting element 212 with the corresponding left plank of the three sectors 261, 262 and 263, the drum 193 can be adjusted by half, one and a half or respectively in accordance with the usual diagram 303, 304 or 305 according to Pig» 8 "half steps are shifted to the right ₀ Due to the interaction of the adjusting elements 212 with the corresponding right flank of the three sectors 261, 262 and 263 of the drum in accordance can with the respective diagram 307, 308 or" 309 of Fig. 8 about two and a half, one and a half or »be shifted half a step to the left»

The three setting elements 212 can also be adjusted with the aid of lower port sets 216 cooperate with the arms of two substantially anchor-shaped plates 270, each with its shaft to the connecting surface of the guide 269

-6? - »3Q9835 / 03Ö1

~ 63 - ■

The two plates 270 are arranged side by side, with their respective arms substantially towards one another aligned In addition, the adjacent arms of the plates 270 are almost in contact with each other, so that they both lie in the path of movement of the central adjusting element 212

The drum 193 is provided with two presetting cams, which are formed from two raised sectors 271, the flanks 272 and 273 of which run over a development of about 90 in the counterclockwise direction towards a central groove 274 (see also the development above according to FIG. 9) »In this groove A guide or centering tongue 276 engages normally slidably, which is attached to the guide 269 and can also interact with the hooks 272 and 273 The two adjusting elements are located under the tongue 276 and are slidable between the arms of the guide 269. When the adjusting elements 211 and 277 are adjusted, they can cooperate with the flank 272 or the sectors 271 to move the drum 193 in correspondence with the parts 311 and 312 of the diagrams according to FIG. 8 corresponding to the right or left to v push _e

-64-3098 3 5/0381

In detail, the part element 277 with the help of a Elongated hole guided through the fixed shaft 281, whereby it is through pins and elongated hole on the other arm of the pivot lever 279 is connected because the action of the leaf spring 214 on the action of the spring 215 on the adjustment. element 277 prevails, adjustment element 277 is normally arranged in the movement path of the plank 273, while the setting element 211 was outside the movement path of the plank 272

Finally, the hats 192 of the drum 193 with a the toothed end 286 of an arm of the bracket 228 controlled by the cam disk 231 cooperates »

The second Auswähltrommel 237 of the selector 194 is also provided with cam portions, which consist of two annular grooves 291 and 292 which converge on a development of 170 ° substantially mutually and in parallel a common groove (see also the execution plan view according to Figo 1O) ₀ In correspondence with the common groove 293, the grooves 291 and 292 are delimited by hooks 294 and 296 (Pig. 10) of two presetting cams, which consist of two projecting sectors 297 (Pig »3) which are in accordance with the connecting zone between unwind the grooves 291 and 292 over about 150 °

-65-303835 / 0381

guide or centering tongue attached to guide 269

298, which may also interact with the two grooves 291 and 292 _e Specifically, the drum 237 may by interaction of the tongue 298 with the UUT 291 or 292 in accordance with the part 313 or 314, the charts of Jig. 8 to the left or »to be shifted to the right«

The flanks 294 and 296 (FIG. 10) of the two sectors 297 can be connected to the armature 210 of the electromagnet 207 hinged Einteilelement 213 (iig »3) and with a further adjusting element 299 corresponding to adjusting element 277 cooperate »the adjusting elements 213 and

299 are also displaceable between the arms of the guide 269 and are guided through the shaft 284 with the aid of elongated holes. The adjusting element 299 is through a Pin and slot connection connected to the other arm of the pivot lever 301 ,, Since the action of the spring 214 If the action of the spring 235 prevails, the setting element 299 lies in the movement path of the flank 296 (Figo 10), while the adjusting element 213 lies outside the movement path of the flank 294 »

The interface circuit 412 for four binary devices (Figo 12) of the electronic control is by appropriate Lines 416 and 417 through the amplifier unit

-66-309835 / 0381

to the electromagnets 205, 207 and two other corresponding ones Lines 418 and 419 are connected to the two lateral magnets 206. Eventually the middle one Electromagnet 206 fed by an OR circuit 422 with the aid of an EITHER-OR circuit 423, which in turn is connected to the lines 418 and 419 by the simultaneous inactivation of the in the storage unit 403 two lines 418 and 419 is prevented and the three other activation combinations of the two lines and 419 are used, an optional inactivation is used the three electromagnets 206 achieved »

The one generated in the storage unit 403 and in the circuit 411 decoded "space bar" code generates the activation a connection line 424 to another input the OR circuit 422 and the activation of the lines 418 and 419 »This makes the electromagnets 206 at the same time excited, as a result of which no characters are printed "

The setting of the selection drums 193 and 237 (Fig »3) of the selector 194 in connection with the programming mechanism— mus 195 (Pig. 2) takes place as follows:

After the rotary movement of the shaft 196 (Figo 3) in front

-67-309835 / 038 1

the procedure described above has been started, depending on whether the electromagnets 205 and 207 are energized or de-energized, the setting element 277 or 211 by the Solenoid 205 or the setting element 299 or 213 set by the solenoid 207 Unless an "Ifeertasten" ~ gode is generated as well one of the three electromagnets 206 is de-energized, as a result of which the corresponding adjustment element 212 is in the Movement path of sector 261, 262 or 263 is »On the other hand the other two electromagnets 206 are excited, with the corresponding setting elements outside keep this trajectory »

By turning the drum 193 clockwise, the centering element 276 immediately releases its contact with the central groove 274 * ■ After a rotation of about 10 °, the presetting cams 271 hit the adjusting element 211 or the adjusting element 277 * The plank acting on the set setting element moves like a control cam 272 or 273 the drum 193 "when looking at pig» 3 axially to the right or to the left (diagrams 311 and 312 according to Fig. 8) “When the shaft 196 has rotated 25 °, the sector 271 leaves the set setting element and holds the no longer guided drum 193 in the axial position achieved in this way »

-68-30983b / 038i

230157A

If the "space bar" code has been generated, no Adjustment element 211 set, and the toothed end of the .Armes 286 engages the grooves 192 "In this way the posture of the drum 193 is corrected to move the head 41 angularly by half a step generate (3? ig * 1), which enables the cams 162 and 170, the correcting or correcting levers 161 and 165 to be arranged correctly between the teeth of the toothed roller 181 or in the grooves 164 »

If one of the setting elements 212 (Pig * 3) is set has been, as already described, the bracket 228 remains raised, whereby it does not have any effect on the following operations The effect has “If the shaft 196 has rotated 45, then the corresponding sector 261, 262 or 263 takes effect together with the adjusted setting element 212. When the drum 193 is preset by the setting element 211 has been, the left, the middle and the right adjustment element 212 act with the sloping left plank of the corresponding sector 261, 262 or »263 together. Then the drum 193 becomes with a 120 ° rotation of the shaft 196 shifted by half a step or one and a half or two and a half steps to the right (diagrams 303 »304 and 305 after Fig. 8). With the help of the formed from the annular grooves 192 Toothed rack and the transmission mechanism already described, the head 41 (Figo 11) then rotates in the clockwise direction

-69-309835 / 0 381

in opposite sense and "brings one of the three to the right of the pressure point lying character columns 42 in the zone preset for printing »

If the drum 193 (Figo 3) has been preset by the component element 277, the left, middle or “right adjusted adjustment element 212 works together with the inclined right flank of the corresponding sector 261, 262 lizwe 263” in the case of a 120 Rotation of the heads 196 then shifts the drum by two and a half, one and a half or half a step to the left (diagrams 307, 308 and 309 according to FIG. 8). The head 41 (S ¹ Ig * 11) then rotates clockwise and then sets one of the three character columns to the left of the print area »

During the subsequent rotation of the shaft 196 up to about 200 °, the set lens element 211 stands with the Groove 264, 266, 267, 268 in engagement and thereby holds the drum 193 positively in the position reached »

As for the drum 237, the tongue 298 leaves at With the setting element 213 or 299 set, hat 293 immediately after the start of the cycle «After one rotation of the Shaft 196 of about 10 ° hit the presetting cams 297 on the set setting element · The on the set Adjustment element 299 or 213 like a cam track

-70-309835 / 0381

acting flank 294 or flank 296 (Fig. 10) Then, when looking at FIG. 3, produce a shift of the drum 237 (FIG. 3) to the left or to the right (Diagram 313 or 314 according to FIG. 8), with the converging Align part of hat 291 or groove 292 with tongue 298 *

When the shaft 196 has rotated by about 30 °, the set adjusting element leaves the common courage 293 and releases the drum 237. From about 40 ° to about 108 ° rotation of the shaft 196, the tongue 298 is with the previously preset converging. Part of the hat 291 or 292 in engagement and thereby shifts the drum by half a step to the left or right * - During the subsequent rotary movements of the shaft 196, the tongue 298 interacts with the parallel parts of the courage 291 or 292 and thereby holds the drum 237 positively stationary in the position reached »With the help of the toggle lever 241 and the transmission mechanism already described, the head 41 (Fig. 1) sets one of the two character rows 42 in each cycle»

When the shaft 196 has rotated 240 ° (FIG. 3), stop the adjusted setting element 212 engages with the corresponding courage of the drum 193 «after a corresponding the number of steps by which the drum 193

-71-309835 / 0381

~ 71 -

has been pushed, between 270 ° and 350 ° amounting rotation of the Y / elle 196 (diagrams 304 to 309 according to Fig. 8) meet when the impact effect has now taken place and each other disengaged corrective elements 161 and 165 (Mg »1) the inclined hooks 272 or 273 (Fig. 3) of the Sector 271 on the guide tongue 276 «By the sectors 271 act on the tongue 276 like a curved path, they bring the drum 193 into the inoperative starting position back, completing this stage after a rotation of the shaft 196 of about 350 °

In a corresponding manner as in the case of the drum 193, the tongue 298 hits after a rotation of the Y / elle 196 of about 270 on the converging part of the groove 291 or 292 of the drum 237 ". The drum 237 is towards her shifted inoperative position, which it reached when the shaft 196 has rotated by about 350 °, where they the Returns head 41 to its inoperative starting position

It is thus clear that the selector element consisting of the drum 193 or 237 has a group of setting cams 261, 262, 263 or 291 and 298 is provided · During the rotary movement of the drum 193 these cams, if the drum 193 or 237 by the action of the adjustment elements 211, 277 or 213 and 299 axially along the shaft

-72-3098 3 5/03 8 1

~ 72 -

196 is moved with one of the three adjustment elements 212 or the tongue 298 interacting with each other »In this way, the drum 193 or 237 then along shaft 196 by an amount equal to half a step, one and a half steps or shifted two and a half steps, with the characters 42 of the head 41 being selected »

Prevent this in the event of damage to the electronic control or an interruption in the supply voltage the anchor plates 270 the adjustment of more than one adjustment element 212, resulting in damage to the selector would result * The first adjustment item that would be discontinued ', namely causes one or two plates 270 to be pivoted with the aid of the extension 216, for example acts by setting the when looking at Figo3 left adjusting element 212 of the extension 216 on the left arm of the left plate 270, which pivots counterclockwise, taking its right arm the middle adjusting element 212 starts moving brings «This arm also affects the left arm of the

right plate 270, which also swivels counterclockwise and moves into the path of movement of the right setting element 212 brings "A possible simultaneously adjusting another adjustment element 212, for example the right one, would cause the

309836/0381 " ⁷⁵ ~

both plates 270 are pivoted clockwise; however, they are otherwise set by the first one left adjusting element 212 prevented from doing so Adjusting element, the pivoting of the left plate 270 clockwise or the right plate 270 in the counterclockwise direction in the locked position. The right adjustment element 212 set first causes the pivoting of the two plates 270 clockwise into the locked position and prevents the two from being adjusted at the same time other setting elements «

! all two or three setting elements are released at the same time none of them can be adjusted due to the impossibility of having at least one disk 270 in the Be pivoted clockwise and counterclockwise should «. The printing unit then works in the same way as in the one above for the simultaneous lack of adjustment of the three setting elements 212 described »

It will be understood that various changes, improvements and additions of parts have been made to the printing unit can be without thereby leaving the scope of the invention «. For example, the printing unit can be used as the alphanumeric output of a calculating machine in the case where it is intended to use amounts and

-74-309835 / 0381

To print font in separate columns »In this case carry the two parts of the head 41 the digits or » The letters*

In one variant, the programming device contains a Program rail arranged parallel to the movement path of the head o This rail is provided with stops that the transport or »switching mechanism in accordance with the positions of the head in operation in which the corresponding character zone for printing must be set »In another variant, the program track controlling the transport mechanism controls also the character selector

In a further variant, the programming device contains a counter that counts the selection cycles for the symbols »after this counter has a predetermined number of symbols has counted, it activates the transport mechanism for presetting the number zone » At the end of the print cycle, the counter is reset to full, using the transport mechanism to preset the symbol zone starts up again »

Patent claims:

-75-309835 / 0381

Claims (1)

Claims i 1c mail merge for. Printing numeric amounts and the kind of symbols indicating amounts at predetermined positions at which a type head is a group numeric characters and a group of symbolic characters ζ which are in two separate zones are arranged, which for printing by a transport or switching mechanism can be preset »and at which the characters of each group can be selected by a common character selector by programming means (85 »58) which cycle through each of the predetermined positions of the head adjusted to the switching mechanism (158, 172 » 181, 182) in such a way that the corresponding zone is preset for printing « 2 · Printing unit according to claim 1, characterized in that the predetermined locations are successive locations are in a number of them and that the programmer also enables the character selector to be actuated (194) in synchronism with the shift control the print point »to select the character to be printed from the preset zone from time to time to select -76-309835 / 0381 3tt printing unit according to claim 2, characterized in that the programming devices a counting device for Counting the number of selected characters included, which the operations of the switching mechanism with that of the selector after a predetermined number of selected characters can alternately follow one another, with each operation of the Switching mechanism the zone other than the zone pre-assigned up to the operation of the switching mechanism preset » Printing unit according to Claim 3, characterized in that the counting device has a selection sensor (78, 79, 112) which can count the cycles of the selector in order to put the switching mechanism (158, 172, 181, 182) into operation, and a visual sensor ( 82, 74) that can scan the operations of the switching mechanism in order to put the selector (194) into operation » 5 »Printing unit according to one of claims 2 to 4, characterized in that the programming facilities a Switching clutch (85) for controlling the switching mechanism (158, 172, 181, 182) and a selection clutch (58) for Controlling the selector (194), the shift and select clutches being controlled by a synchronizer (59) are connected to each other, which the driven 309835/0381 ~ ⁷⁷ ~ benen part (57) of the selector clutch (58) with the corresponding driven rope (84) of the clutch (85) can synchronize in accordance with a predetermined phase * 6e printing unit according to claim 5, characterized in that the synchronizing device consists of a common cylindrical part (59) with a drive part of the clutch (85) forming the first axial Part and a second axial part forming the drive part of the selector clutch (58), which are each included in the two Parts formed coupling openings (90 * 63) provided are * in the corresponding, of the drive parts worn coupling claws (86, 64) can engage » 7β printing unit according to claim 4 and 5 or 6, with a starting electromagnet (109) »which can be activated by an electronic control device of the printing unit, characterized in that the clutch (85) and the selection clutch (58) by a corresponding control element (91; 71) can be put into operation, which is movable with the corresponding driven parts (84; 57) and is controlled by the selection sensor (78, 79, 112) or the switching sensor (82, 74) in the given order, the control element (91) of the clutch by a normally from the Startelektro- -78-309835 / 0381 magnet controlled link (94) is locked » 8 "Printing unit according to claim 7, characterized in that the switch sensor (82, 74) the control element (9Ϊ) of the selection clutch (58) in the rest position and the clutch stops working? the switch sensor by a Program cam (83) is shifted by the driven part (84) of the clutch (85) is adjusted to the select clutch in said Order to put into operation * 9 · Printing unit according to claim 7 or 8, characterized in that the selection sensor (78, 79 »112) is normally is arranged in the movement path of the control element (91) of the clutch (85) to the clutch after a predetermined rotation of its driven part (84) to put out of operation, the driven Part (57) of the selection clutch (58) a selection cam (77) adjusts the selection sensor can slide out of the path of movement of the control of the clutch to it after a predetermined Number of selection cycles to be put into operation again o 1Oo printing unit according to claim 9, characterized in that the member controlled by the starter solenoid (109) -79-309835 / 0 381 (94) also into the movement path of the control element (91) the clutch (85) can be brought to it independently of the selection control curve (77) except To set operation " 11 * printing unit according to claim 10, characterized in that the driven part (84) of the clutch (85) also sets a control cam (123) which the member (94) independent of the starting solenoid (109) can temporarily keep in the path of movement of the control element (91) of the clutch, so that at least independent of the control of the starting electromagnet by the starting electromagnet, a complete one Selection cycle for symbols and numeric characters 12 * printing unit according to one of claims 7 to 11, in which the feed circuit of an electric motor driving the shift and selection clutches by one of the Start solenoid operated switch is controlled, characterized in that the switch (138) also under control of the driven part (84) of the clutch (85) is kept closed so that the drive parts of the shift and selection clutches (58, 85) independent of the starter solenoid (109) kept rotating until a print cycle -80-309835 / 0381 is completed" 13 «Printing unit according to one of claims 5 to 12, in which the head can be moved transversely to the platen», characterized in that the transverse movement is effected by a screw (30) which is set up so that it carries a type head (41) Sets the carriage in motion by being driven by the driven part (57, 56 _r 55, 29) of the. The selector clutch (58) is set in rotary motion 14 »Printing unit according to one of Claims 7 to 12 and 13» characterized by an alternating position of the carriage (22) in relation to the platen (21) controlled stop element (119), around the through the Start solenoid (109) controlled member (94) in such a position to be held that the recommissioning the clutch (85) for a new printing cycle until the type head returns in its rest position in relation to the platen is prevented " 15o printing unit according to one of claims 5 to 14 »in which the voter contains a multiplicity of selector electromagnets, which optionally have a corresponding multiplicity can hold on actuators with 30983S / 0381 Be brought into contact with the respective magnetic core by means of a tracking element for selecting the characters, and in which a synchronizing element removes new data from a memory at the end of each selection cycle, characterized in that the tracking element (200, 214) by the driven part (57, 56, 197, 196) of the Auswählkupplung (58) is set and controlled by a set by the driven part (84) of the clutch (85) Nachführkurvenscheibe (139) ₉ at the end of each printing cycle, all actuating elements (208, 209, 210) with to bring the cores of the respective selector electromagnets (205, 206, 207) into contact » 16o printing unit according to claim 15, characterized by a Sensing element (228) for the actuating elements (209), which sense the setting of the actuating elements can to prevent the impact of the type head (41) when none of the actuating elements are set "has been· 17. Printing unit according to one of claims 5 to 16, characterized characterized in that the switching mechanism (158, 172, 181, 182) contains a differential (172), the output (174) of which is connected to the type head (41), wherein a first input (171) of the differential through -82-309835 / 0381 a transmission device (157 »158) to the driven Part (84) of the clutch (85) and a second input (173) of the differential to an output element (192) of the voter (194) is connected » 18, printing unit according to claim 9 and 17, in which the selection ~ ler selects the characters of each group based on a corresponding rest position of the head » characterized in that when the head is in the rest position, the characters in both zones are eccentric to the platen lie, with the driven part of the clutch one or the other of these zones in correspondence with the shutdown of the clutch at the end of the predetermined rotational movement of its driven Part centered " 19 · Printing unit according to one of Claims 1 to 18, in which the type head consists of a cylindrical socket with consists essentially of a vertical axis and is supported by a carriage that can be moved on a cross member, characterized in that the socket (41) is connected via at least one toothed wheel (182) which is connected to the one parallel to the carriage carrier (24) and extending over the entire transverse path of movement of the head Toothed roller (181) is engaged, which is set by the selector (194) -83-309835 / 0381 2Q _O printing unit according to claim 19 »", in which the carrier is rotatable on its holder in order to bring the selected character into engagement for printing, characterized by a toothed rim (184) made in one piece with the type head socket (41), the toothed wheel (182) has teeth which are arranged so that they are axially with the toothed ring (184) and laterally radially with the toothed roller (181) in engagement at the end face of the gear (182), this engagement also during the rotational movement of the carrier partially retained for printing the character. 21 · Printing unit according to claim 20, in which the type head box is rotatable and displaceable on a support shaft of the carriage, characterized in that the bushing (41) is provided with longitudinal grooves (164) into which a inner locking element (165) rotatable in the carriage (22) intervene before printing the selected character can· 22 · Printing unit according to claim 13 and one of claims 19 to 21, characterized in that the screw (30) comes into engagement with a toothed rack (31) which is one of the driven part (84) of the clutch (85) carried Yorschubkurvenscheibe (139) with the -84-309836 / 0381 «. 84 - Screw can be brought into engagement with a shaft driven by the select clutch (58) (29) rotatably, but is axially displaceable on it, with the feed cam disc the rack at the end the printing process of a print line from the screw triggers for the elastic return of the carriage into its Rest position ο 23o printing unit according to one of claims 1 to 22, in which the selector has at least one presetting setting element and one that can be moved cyclically in one direction Contains selection element that carries at least one Yoreinstellnocken that end with the presetting Adjusting element can cooperate to the selection element to move in a second direction, characterized in that the selection element (192) with a group of adjusting cams (261, 262, 263) is provided, which interact with the adjusting devices (212) can, if the selection element by the presetting setting element (211) in the second Direction is shifted »to move further in the second direction by a variable amount and. select the characters of the type head (41) O 309 8 35/0381 24 * Printing unit according to claim 23 _r, characterized in that the setting devices consist of a series of setting elements (212) assigned to the corresponding characters in each zone of the type head (41), which are individually adjustable in order to be able to use the adjusting cams (261, 262, 263 ) the group to work together » 25 * Printing unit according to claim 23 or 24, in which the selection element consists of a on a drive shaft with cyclic rotary movement in the second direction axially displaceable and rotatably fixed with her drum and the centering member cooperates with the drum, to bring them back into a rest position after the variable movement, characterized in that the presetting adjustment element (211) to another pre-setting adjustment element (277) in the Manner is assigned that the adjustment of one corresponds to the retraction of the other and vice versa, wherein the preset setting elements with a corresponding Yoreinstellnocken (272, 273) can interact to move the drum (193) from the rest position to move axially in one direction or in the opposite direction © 26 »Printing unit according to claim 25, characterized in that -86-309835 / 0381 the setting cams (261, 262, 263) of the group are essentially helical in shape and in pairs are arranged with the cams of each pair beveled in opposite directions, while each of the adjustment elements (212) is associated with a respective pair of these cams to communicate with the to work together one or the other cam of the pair » 27o printing unit according to one of claims 4 Ms 26, characterized characterized in that the adjusting elements (212) - the row corresponding locking levers (270) with in the movement path at least one associated adjusting element arranged arms are assigned, which in the Locked position for the other setting elements can be pivoted when the associated setting element is set is, wherein the arms of the levers (270) mutually cooperate so that the pivoting of a lever in the locked position produces a corresponding pivoting of the adjacent lever · ~ · ~ Α "—ο ~ o -" β ¹ ™ β """ο ~ ο MB / Hf - 25 211 9835/0381 Blank page