DE1499155A1 - Serial writing unit for calculating and accounting machines - Google Patents

Description

April 20, 1965

U99155

Applicant ^ Uanderer-UJerke Aktiengesellschaft Cologne Cologne - Deutz, Pfälzischer Ring 100

Serial writers for calculating and accounting machines

The invention relates to a number and / or letter writing mechanism for office machines, in particular Calculating and accounting machines. The object of the invention is to create a very fast and compact writing unit of particularly low weight, particularly suitable for office machines with a moving paper platform (lay) suitable for office machines with a fixed paper platform where the writing unit is moved from place to place.

There are machines known in which the writing mechanism is moved opposite the paper stage. These are predominantly type lever writing mechanisms, which the houto not reach the desired speed, and at which also take up too much space to accommodate the entire. To be able to write on the width of the paper » A writing system has also become known in which the T / pens are arranged on a spherical body.

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The actual writing body is very light, and a high writing speed is also possible, but the The control mechanism for selecting and calling the type to be printed (written) is very complicated and especially space-consuming.

The invention provides for the entire writing mechanism including its control device in a compact, to summarize a unit that requires very little space. It is controlled electrically, so that it can be accessed both from the keyboard and from other input devices can be made from. Type wheels serve as printing or writing elements - according to the exemplary embodiment described below three - of dpnen only one is printed, according to the called number or the called letter jn. The type wheels are mounted on rocker arms that are driven together and in their Movement has been controlled by an electromechanical device. The drive for the control is the selection to be written on type as well as the drive of the rocker arm for the execution of the writing movement of the type wheels takes place through a planetary gear. The planetary gear is made like this by electromagnetically adjustable pins affects that the drive for the type wheels is interrupted for the time of writing and the drive for the writing movement takes place while after

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Write down the planetary gear in reverse Drive is controlled.

Other features of the serial writing mechanism according to the invention can be found in the claims and in the following description of an exemplary embodiment shown in the drawings.
It shows:

Fig. 1 shows the serial writing unit, in section along Line A-A of Fig. 2,

Fig. 2 the Serienschreibuierk, in side view.

Fig. 3 "the control device for determining the respective rocking lever leading in the writing position, in section,

Fig. 4 is a plan view of the guide block with its slides, according to Fig. 3,

Fing. 5 shows a section from FIG. 2 along the line BB, in section.

The exemplary embodiment of the invention shown in the drawings does not luird a ÜJelle 1 of one shown electric motor with the interposition of a

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Clutch driven. Around wave 1 is another one Planetary gear described in more detail below is arranged with its axially displaceable, revolving control. Adjusting slides with control magnets are arranged around these. A drive roller is mounted on the shaft 1 for the type wheels and a drive pulley for the write drive, which alternately through the planetary gear be moved. This part of the writing mechanism essentially forms a cylindrical body, under which one Shaft 35 is arranged. This shaft 35 carries the drive mechanism for the writing movement.

Referring to Fig. 1, the core piece of the writing mechanism, the dialing device is described. IYi it you are by means of electrical impulses that both won the keyboard of the fascine, as well as of another Input device can be given · the types to be printed are selected.

One end of the shaft 1 is mounted in the side wall 3 by means of a needle bearing 2. The other end of the shaft 1 is supported by means of a needle bearing 4 in an open housing S which is fastened with the housing cover 6 in the side wall 7. With the shaft 1 made of one piece iat oin l'lanetenradkäfic, 8, in which the l'lanütGnrüdijr IG are mounted ^{on Achsün l 1.} The planetary rudder 10 can on the one hand with the sun gear 11, which rotates

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is daily mounted on the shaft 1 and on its free The end of a gear drum 12 is rigidly fastened. on the other hand the planetary gear 10 comb with a rotating drum. 13, which by means of needle bearings 14, 14 'on the üielle 1 is stored. On the axis of the sun's wheel 11 a ratchet wheel 15 is rigidly attached, opposite the air »coupling wheel 16 is attached in a sliding sleeve 17. The sliding sleeve 17 is guided with its bolts 18 in a curved recess 19 in the rotating drum 13.

A rotary pawl 20 is rotatable on the gear drum 12 attached, the three angled flaps 21 owns. These tabs 21 also carry pivoting levers 22, one end of which is in recesses the gear drum 12 protrude and at its other end carry a cave 23.

The rotating drum 13 u / eist a curve or, sliding teeth 24, which cooperate with a counter-toothing 24 'of a quenching plate 25. The extinguishing plate 25 is fastened to a coil plate 26 in a longitudinally displaceable manner by means of bolts (not shown). Between the coil plate and the housing cover 6, electro magnets 27 are arranged distributed over its circumference, sixteen according to the exemplary embodiment. Below these electromagnets 27 are in slots dor Spulenplat.ta 26 and the housing cover 6

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Slide 28 mounted in a longitudinally displaceable manner. [Ylit their noses 29, the slides 28 protrude into the area of the pin armature of the electromagnets 27.

The function of the parts described is as follows: It is operated by operating the keyboard or another When one of the electromagnets 27 is excited by the input device, the latter drives its pin armature 30 against the nose 29 of the slide 28, so that this with its end 28 'in the area of the circulation pawl 20 comes. Since the Ulelle 1 - Motor driven - revolves continuously, it rotates via the planet gears 10 and the sun gear 11 also the gear drum 12. The gear drum 12 in turn drives the type wheels 32 which are in engagement with it (Fig. 1 and 2). The gear drum 12 is lit at the same time the rotary pawl 20 is also rotated until it strikes against the end 28 ′ of the offset slide 28. So that is Revolving pawl 20 is locked while the gear drum 12 still ladder turns so that the pawl 22 versehujenken the circulation and press against the clutch wheel 16 with their rollers 23. This follows the pressure of the rollers 23 and slides with its ßolzan 18 in the recess 19 of the circulation * times 13 in the axial direction, the toothing of the clutch wheel 16 engages in the toothing of the ratchet wheel 15, The planetary gear is switched over, i.e. the sun gear 11 is locked and the planet gears 10 are locked

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.drive now the rotation tram 13, uiobei the bolts 18 slide in recess 19. Since the gear drum 12 is firmly connected to the sun gear 11, this is also locked, uiomit the type rder 32 to the selected setting are brought.

On the sleeve of the rotating drum 13 is a toothed belt pulley 33 attached, which rotates the üie.lle 35 via the toothed belt pulley 34, namely to drive the writing movement the type wheels 32. This device is described in more detail below.

The Gleituerzahnung 24, 24 'of the rotating drum 13 and the erasing spaces 25 acts against each other so that it shifts the extinguishing plate 25 axially and thus the called slide returns to its stop means 36 in its initial position. The time of the return can be determined by the sliding teeth 24, 24 'and it is set in such a way that the deletion of the set slide 28 takes place immediately after the planetary gear has been switched over Rest position returned. This means that it can be pre-set, ie that the next key can already be struck or the next slide 28 can be set while the printing of the previous type is still in progress.

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In a certain rotational position of the rotary drum 13 redirects the recess 19 dia bolt 18 back in the axial direction, with which the coupling wheel 16 via the Sliding sleeve 17 is decoupled from the sun gear 11. Thus, the planetary gear is through the bolts 18 switched again, i.e. the rotary drum 13 is blocked and the planet gears 10 act again on the sun gear 11, so that the lUählvorgang -as described- can perform again.

The print mechanics and rocker arm selection are described below.

ÜJie already stated, sees the embodiment three rocker arms 37, which are on the axis 38 (Fig. 2) are stored. The rocking levers 37 are designed as two-armed levers and carry at one end the Types redar 32 while they are with their other end with ever a knee joint 39, 40 are pre-tied. All knee joints 39, 40 with the two-armed handle are above the axis connected, which is mounted senwingend on the axis 43. On its other linden tree, the lever 42 carries a roller 44 which is guided in the Faconnut 45 of the cam 46. The cam 46 is on uJelle mentioned by baraits 33, which is mounted similarly to shaft 1, is attached, and HHfi bc3 is a second Faconnut 47 in which the roller 48 de- :; V ink el hahn] ;. <Ί9 is performed. The Uinkel lever 49 is

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pivotally mounted on the axis 5D and configured at its other end so that it has three rollers 51 in the Slots 52 guide the straightening pawls 53, which are attached to their rocking levers 37 so as to be rotatable. The rocker arm 37 are guided in a guide piece 54 so that they are all on the same point of the platen 55 for Stop of their type wheel 32 are brought »The axle 38 carries one each in addition to the rocker arm 37 Bounce springs 56, which are adjustable by means of the screws 57 held in the guide piece 54.

A tappet 59, which is guided on the eccentric axis 60, is articulated on each of the knee joint axis 58. Below this tappet 59, the selection device for the selection of the type wheels 32 or the rocker arm 37 is arranged on the axes 6t and 62, of which the axis 62 is eccentric for the purpose of dusting the impact force (FIG. 2). As can be seen from FIGS. 3 and 4, sliders 64, 65 and 66 are arranged in the guide block 63, as well as a row of balls 67 which can only accommodate one slider 64, 65 or 66 between them. The slides have angled tabs 64 ', 05' and 66 'which, depending on their setting, open or cover the transverse slots 68, 69 or 7Π. At their end there are slides 64, 65 and 66 each with a fiber nose 71, which is connected to the pawl ΤΛ via π 3 spring 72; ¹ :. The Klin- c ^ n 7'i are on aar nchso 74 dr-; h ~

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conveniently positioned and act on the one hand with the shoulders 75 the slide 64, 65 and 66 and on the other hand with the Flap armatures 76 of the magnets 77 together.

The function of the parts described is as follows: f / lit pressing a key simultaneously with the Excitation of one of the electromagnets 27 also one of the three Electromagnet 77 excited «This attracts its armature 76 and so lock the latch 7.3, which gives the Nose 73 'the shoulder 75' free so that the associated Slide 64, 65 adder 66 follows the pull of its spring 72 and with its flap 64 *, 65 'or 66' it is given arranged transverse slot 68, 69 or 70 covers.

If the UJslla 35 is now rotated via the planetary gear, so schujenkt by means of the Faconnut 47 and the roller the lever 49, making over the roller 51 and the curve the directional pawl 53 is slid into the type wheel 32 » Only then does the Faconnut 45 and the role take place the pivoting of the lever 42. Characterized by the fact that the associated slider 64, 65 or 66 is attached Transverse slot 68, 69 or 70 is covered, the Habais 42 of the Varschujankunt] the associated plunger 59 do not immerse, but rather it supports the Kniegslsnk 39, 40, this will cause the pivoting to the Schiiiinghrjüel 37 transfer, dar dna type wheel 32 against the Sr.hrcib-

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lualze 55 leads. The directional pawl 53 slides with it its slot 52. on the roller 51 and briefly meets uor the stop of the type wheel 32 against the bounce spring 56. The bounce spring 56 serves on the one hand to regulate the Strike force and on the other hand it causes a backlash-free locking of the type wheel 32 at the moment of the attack.

The return of the rocker arm 37 takes place in itself same Iü'eise as the Uoruiärtshub, so inevitably via the cam 46, the straightening pawl 53 initially remaining in engagement until the type wheel 32 again engages in the gear drum 12. Then there are Richtklinka 53, - controlled via the Faconnut 47 and the roller 48 the type wheel 32 for the next setting free again.

Immediately after the imprint is over the on the üJelle 35 fixed Faconnutscheibe 78 of the fixedly arranged extinguishing lever 79 swiveled. This engages with his Arm 79 'behind the stop 80 of the slide 64, 65 and und. brings the stabled slide back to its rest position.

In time ■ buroinji mming with the possibility of presetting the type selection also the jchuiing lever selection is possible,

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For example, if a slide 64, 65 or 66 is controlled and the associated plunger 59 has the transverse slot 68, 69 or 7D not yet released, so the slide will last so long rest against the plunger 59 until it is lifted by its knee joint 39, 40. Then the slider follows the train of his spring 72 in the controlled position.

IMe already stated, the rocker arms 37 are in the Guide piece 54 guided so that their type wheels 32 all come to the stop at one and the same point. To that the outer knee joint parts 39 'are bent, aiie Fig. 5 shows.

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Claims (11)

■ ■ - 13 - claims 1. / Series recorder for calculating and accounting machines, with type wheels mounted on rocker arms, characterized in that the drive for controlling the Selection of characters to be written on the type wheels (32) and the drive of the rocker arm (37) for; the writing movement the type wheels (32); by a planetary gear ', which is carried out by adjustable stops (28, 28'), which correspond to the type to be printed, is influenced in such a way that the drive for the type wheels (32) is interrupted for the time of writing after setting the selected character and the drive for the writing movement takes place, while after writing the planetary gear "again is controlled in reverse drive manner. 2 «Series writing mechanism according to claim 1, characterized» that the entire drive! - tiftü control device for determining the type to be scribed, arigeordnat radially around the main shaft (1) of the planetary gear 3 «üaTienechraibu / Erk according to claim 1, characterized in that menreire rypanrader (32) so angatriaban and BATH their types on one and the same place for printing reach, 4. Serienschreibujerk according to claims 1 and 2, characterized in that an equal number of slides or stops (28, 28 *) is arranged around the planetary gear, ujie carries a type wheel (32) types that the slider by means of electrical pulses - For example, from the keyboard, the electromagnets (27) assigned to them are brought into the path of a pawl (20) rotating with the gear drum (12), which is driven by the planetary gears (10), and thus the axial displacement of the coupling - 'lung wheel (16) causes the gear wheel (12) to be blocked and the rotating drum (13) to be released, whereby the driving force of the planetary gears (10 ) acts on the rotating drum (13) » 5 sari chisel according to d # n claims 1 and 4, characterized in that at the beginning the Äntrieasbeweguftg exercises the revolving drum (13) all type wheels (32) spöffi and be directed for the imprint, and then tii « Drive movement for the rocking fork (37) takes place, the only on those dap rocker arm (37). transferred uiirc, eiö:; - son ^ cöf> yl (59) ^ n soinor Freilaufbsiue ^ ung BATH 6. Series writing unit according to claims 1, 4 and 5,
'characterized in that an electromagnetically controllable slide plate (63) is arranged in the area of the tappet (59) which, in the controlled position, each has a tappet (59). Freewheel movement blocks, while it allows the other plungers (59) the free-wheeling movement. 7. Serienschiuerk according to the preceding claims, characterized in that the forward and return stroke the rocker arm (3?) is non-positive. 8. Serienschreibiuerk according to the preceding claims, characterized in that the directional pawls (53) for the Typrsder (32) on their respective rocker arm
(37) are stored and when the writing movement of the
Rocker arm (37) are non-positively guided in a curve (45) by means of their drive lever (42). 9 «Series drive mechanism according to the preceding claims, characterized in that the planetary gear is switched from internal drive to external drive and
vice versa via curves (1S) in the gear parts (13, 17). 10. - Series writing unit according to the preceding claims, BATH ORIGINAL '
009845/1432 ~ 16 - characterized in that the straightening pawls (53) are guided against the rebound springs (56) and thus effect both the regulation of the stroke force and the backlash-free locking of the type wheels (32), 11. serial writing according to the preceding claims, characterized in that the speed of the rocker arm (37) is determined by the cam (46) - is cash «, 009845 / U32 QAD