DE1961320U - SWITCHING DEVICE FOR PRINTING CALCULATING MACHINES. - Google Patents

Description

168 * 4/13/67 η

Az. D 24 858 / 42m Gbm

Sohr »-3Jr. 838

! irma D IEHl, Nuremberg, Stephanstrasse 49

Holding device for printing calculating machines,

The innovation relates to a switching device for printing calculators to prevent decimal point printing in certain printing processes and to bring about a double line jump after certain printing processes »

The task of the innovation is to provide a simple, safe and automatically working calculating machine for a compact type of calculating machine To create a device that enables the decimal point when printing numbers and when ejecting the remainder according to a division calculation not to be included in the printing and furthermore after the printing of a final or subtotal or * a product or quotient — j eject a double skip *

According to the innovation, it is proposed in the computing machine having a plurality of known per se command transmission members simultaneously cooperating _t a delayed mechanically releasable Preigabeglied controllable Kommandoabfühlglied which is formed strap as a pivotable and fixedly connected to the Ireigabeglied as well as an actuator, a einrückbares by the Kommandoabfühlglied , in particular machine-driven moving shift linkage to actuate a locking device of the decimal point pressure types and a control device which can be switched via the actuating element also by the command sensing element to bring about a double line jump.

This can be the comma binding and the double line jump common command sensing member designed as a pivotable bracket and by relocating the command transmission members be adjustable in three different switching positions, in the first of which it causes the decimal point pressure suppression and in the third of which is the control device for the means of transport via an actuating member coupled to the releasing member changes the line feed to a double line jump, while it remains ineffective in the second switching position »

To control the three switching positions of the command sensing element, those that are guided in the machine, in particular command transmission elements designed as racks, which, when the force-fit retraction occurs, keystrokes of the function keypad or corresponding program control means feel, in the area of the for sensing flaps or edges of the command sensing element on »The command racks are drawn in when a collective bar releasing all calculation and symbol racks machine-driven is pushed away in the working direction, the command racks directly or via an intermediate gear can be released or moved back by this collector bar Command sensing element also directly from program control means for carrying out calculation processes such as an automatic division being controlled*

Details of the innovation can be found in the description of an in the embodiment shown in the drawing.

The figure shows a schematic, exploded perspective View of the machine from the right, only the parts that are essential for the innovation are shown «

A four-species printing calculating machine will be used for explanation with motorized drive, a numeric keypad, input of the values into the counters via toothed racks and a »function table

stenfelcL for entering the respective work commands placed·

The figure shows a main drive shaft 2 running through the machine, which carries a cam disk 3 outside a right frame wall 1. In addition to other drive and control cams, two further cams 4 and 5 are attached to the main drive shaft 2 inside the frame wall 1. Rollers 7 and 8, which are rotatably attached to a lever 6, rest on these. The lever 6 is pivotably mounted on the frame wall 1. It is connected to a bus bar 10 via a push rod 9. The collecting bar 10 is guided in an approximately horizontally running slot 11 in the side wall 1. A second such set of cam disks, a lever and a push rod are preferably also attached in a manner not shown here adjacent to the left frame wall, in which a slot 11 also corresponds guide for the collecting bar 10 is provided * This double drive ensures an exact parallel displacement of the collecting bar 10 they are under the force of leathers attacking them with stops on the left of the collecting bar 10 and follow this in a force-locking manner when it is shifted to the right _; until they rest against the pins of a pen slide with their load stops and are thereby held in place or have sensed the respective values from a counter coupled to them.

From the collector bar.10 two are outside in the same way command racks 13 »14 guided displaceably in the machine of the side wall 1, that is to say these too are moved in the Moving the collecting bar 10 released so that it is spring force can conclusively follow up with stops on yours the front end of the counterstops can be sensed in the function keypad.

rather way like the arithmetic and symbol racks form-fitting in. their starting position postponed. This previously described, The device shown only partially corresponds to the general one common structure of such calculating machines.

To prevent comma printing during certain printing processes, z. B. when printing number, the printing unit is a locking flap assigned, which protrudes with a bracket 15 from a support plate 16 of the side wall 1 »

For the line circuit, an only hinted at has Printing unit roller, which rests on a shaft 12, has a switching gear 17 outside of the! Switching pawl 18 step-by-step while taking along the pressure rollers— shaft 12 is rotatable. One tooth of the holding gear 17 corresponds the spacing of a line on a print strip · The Switching pawl 18 is pivotable on a pivot pin 19 of the side wall 1 arranged transport switching plate 20 and hinged by a stop tab 21 of the plate 20 limited in the pivoting path · A stretched between a rear arm of the pawl 18 and an eye of the plate 20 Leather 22 holds the pawl 18 in abutment on the tab 21. The line transport pawl 20 receives its pivoting movement Via a push rod 23 which is articulated to a lever 24 which is connected to a roller 25 on the aforementioned The cam 3 rests and is mounted pivotably on the side wall 1. By one between the circuit board 20 and one in the side wall 1 attached pin 26 tensioned spring 27, the roller 25 is pressed against the cam 3 *

To switch to either a single »or a double line jump. can, If the ratchet wheel 17 is assigned a pivoting link 28 attached to the support plate 16, this link 28 has two limit stops 29 and 30, with which they can concern is limited on the shaft 12 in the pivoting path. By a

between the gate 28 and the bearing pin 19 tensioned toggle spring 31, which is arranged so that its tipping point is between the two end positions, are two stable for the gate 28 Positions possible, the link 28 has at the level of the tooth tips of the ratchet wheel 1? a G-conductive path 32 towards the pawl 18 * Is the link 28 with its stop 30 on the shaft

12, so-the pawl 18 when pivoting the Switching plate 20 first - sliding on the path 32 of the gate 28 - guided over a tooth gap of the ratchet wheel 17. and only falls into the next one · The ratchet wheel 17 is only rotated by one tooth »If the stop 29 of the link is located 28 on the shaft 12, the pawl 18 immediately plunges into a tooth gap of the ratchet wheel 17 and takes the pressure roll around two tooth pitches with

To actuate the locking flap 15 for the Kommadruokunterbinding and to switch the gate 28 from one to two line switching disefc ⁷ - now the following device is provided in the machine *

The two functions of decimal point printing and double line switching should be connected with very specific work commands, namely the comma printing prevention with the number printing and the remaining ejection after the division, the double-skip after printing a final or subtotal * Die These commands are controlled either manually via the I-function keyboard or automatically via a program control unit and above all via the above-mentioned command transmission s racks 13> 14 “This is what these two toothed racks point to

13 and 14 have lateral pins 33 and 34 which protrude into the area of a command sensing element 35 * The command sensing element 35 is attached to a shaft 36 which is rotatably mounted in the side wall 1 * is coaxial with it on the shaft

36 another! Release link 37 attached «This release link

37 is in the rest position with its end on a frontal

gen pin 38 of the collecting bar 10 on · Via an arm 39 of the release member 37 on which leather 40 engages, which in turn is attached to the bearing pin 19, the release member 37 is pressed against the pin 38 of the collecting bar 10 »The release member 37 has on its side facing the pin 38 there is a curved path 41 and an incision.42 »The curved path 41 causes a certain overstroke of the release member 37 against the force of the spring 40 when the collector bar 10 is in the rest position to the rear, the release member 37 , sliding with its incision edge 42 on the pin 38, can fall through completely ? H have reached their respective end position, that is shortly before reaching the rear working position of the collecting bar 10 *

The command sensing element 35 points to the pin 33 from which it is slightly raised in the rest position, a sensing stop 43 on »This is followed by four further position options of the pin 33 a slightly recessed path 44 to * Then This is followed by a further level 45 »which extends over four following positions the command transmission rack 13 or its stop pin 33 and at the end there is another something raised shoulder 46 corresponding in height to path 44 provided which of the last possible position of the stop pin 33 corresponds to »The individual positions of the stop pin 33 of the command transmission rack 13 are indicated in the drawing by symbols, which from left to on the right have the following meaning: number printj plus, minus, Times, divided, negative subtotal, negative total, total, Subtotal, actual. The fummerdruok is the starting position. In this position, as can be seen from the figure is, the command sensing element 35 has the slightest Yerschwenk-

execute movement If the command rack 13 is shifted so far, that the pin 33 of the track 44 or the projection 46 is opposite, the command sensing element 35 falls to a central position duroh. However, if the stop pin 33 is opposite the track 45, the command sensing element 35 can move into a third Swivel switch position. The command sensing element 35 can be through the shape of the web 41 and the incision 42 of the release " member 37 {in each case only at the end of the path of movement of the collector beam 10 fall into the respective holding position · falls if it passes into the third holding position, arm 39 will strike against a Ansehlagstift 47 in the link 28 and swivels this clockwise until the limit stop 29 on the Shaft 12 is applied, d. H. he places the backdrop 28 on double-line switching around «The gate 28 also has an angled stop tab 48, which in the double-line circuit pivoted holding position in the range of motion of the switching plate 20 near the push rod 23 protrudes · each at the end of the line hold movement, d. i.e. when the busbar 10 has already returned to the starting position, the gate 28 is swiveled back to single-line switching

When the command is transmitted, the rack 13 is not switched off moved out of its rest position - so see the feeler stop 43 when unlocking the release member 37 on the transmission pin 33 * Consequently, neither the command sensing element 35 nor the release element 37 rigidly coupled to it can over Swing out a first stop position · On one upper, flat edge 49 de © release member 37 is a slider 50 of a switching arm 51. This switching arm 51 is pivotably articulated to a lever.52 »The lever 52 is in turn pivotally arranged on the Iiagerstift 19 and is by a stretched between him and the pin 26 of the side wall 1 Spring 53 held in the illustrated rest position »

Take the command sensor. 55 and the release member 37 the first switching position on, the switching arm 51 is raised so far, that its left end is in the path of movement of the collecting beam 10 protrudes when the collecting bar 10 moves on the right it pushes the switching arm 51 likewise to the right * The lever 52 is thereby counteracted by the force of the peder 53 Swiveled counterclockwise and lifts its switch

54 the arm 15 of the locking flap for the decimal pressure suppression in the lock. "

So that this pivoted position of the lever 52 or the blocking position of the boom 15 is not prematurely undone when the collecting bar 10 is retreating, a pawl 55 is pivotably articulated on the lever 52 on a bearing pin 66 for the switching arm 51 «Through a leather 56 between this pawl 55 and a bracket 57 of the switching arm 51 hooks on the movement of the switching arm 51 to the right, the pawl 55 in. An East 58 of a pin 59 fixed in the side wall 1. When you go back, the switching arm follows 51 no longer the collector bar 10 "The lever 52 is held in the pivoted position." The pawl 55, however, also has an arm which protrudes upwards and in the area of a pivot pin 60 of the push rod 23 protruding to the rear from the switching plate 20 is provided with an angled portion 64 against which the pivot pin 60 strikes at the end of the line switching stroke the latch 55 had collapsed. JThe handle will be activated

55 lifted out of the catch 58 * The lever 52 and the switching arm return to their starting position under the pull of Peder 53 and the decimal point pressure suppression is lifted only takes place when the line transport is carried out, so this only happens after the printing process has been completed *

The first stop position was opened by the stop pin 33 » which the sensing element 43 of the command sensing element 35 is placed on, causes. But it can also be independent of the position of the

μ 9 w

Koimnandoub transmission s rack 13 still through one of one Reehenprogrammsteuerwerk not shown influenced the latch 61 · For this purpose, the command sensing element 35 has a pin 63 on an arm 62, over which the program-controlled residual ejection according to a division calculation the retaining pawl 61 can place «.

If the command sensing element 35 is not held by the stop pin 33 or the holding pawl 61, it will at least fall up to a second switch position * As mentioned earlier, it comes with an intermediate and total command in the third holding position. Already in the second

Shift position, the release member 37, controlled by the Kommandeabfühlglied 35, as far counterclockwise _s pivoted that when Einziehhub of the collecting beam 10 of the surface mounted with its slider 50 on the Ireigabeglied 37, d "h" on the upper edge 49 shifting 51.nicht more is entrained · Rather, the bus bar 10 can go over the switching arm 51 * in this second switching position, neither the comma suppression nor the double line jump is initiated or executed * The device is ineffective in this position *

When the Ansehlagstift 33 of the stage 45 of the command sensing element 35 faces, the command transmission rack can also in this position 13, the command sensing element 35 can be held in the second switching position. That is what remains Stop pin 34 of the command rack 14 in the stand in the second shift position, in which a cast flap 65 on the command sensing element 35 faces the stop pin 34,

so the command link 35 cannot be in the third holding position fall through·

** 10

As can be seen from the preceding, in the first Sehaltsteilung the commadruek prevented and in the third So-halt division of the double-skip switched on · The command sensing element 35, which, in cooperation with Leder, is responsible for sensing the commands, prepares the functional processes in each case before * By delay elements, on the one hand the Toggle spring 31 for the gate 28, on the other hand the pawl 55 for the locking lever 52 of the comma ^ suppression device, the work command is saved. With the actuation of the line feed and, indeed, towards the end of the lifting movement for the Line switching pawl 18 are after the implementation of the respective Work commands return the storage elements to their original position flipped or * unlocked *

The masohine process is explained in more detail using a few examples:

Lobster print $

For example, a number is entered in the machine and the function keypad, add or print numbers actuated * When turning the main drive shaft 2? / the Collector bar 10 moved backwards · The frictionally following rack racks turn the for example into the Pen carriage keyed in, value entered into printer. The command transmission rack 12 is held in the starting position on the functional keyboard »When going back, it hits the collecting bar 10 on the switching arm 51, since the Ireigabeglied 37 by the command sensing lever 35, which is mit.seinem Taststück 43 is supported on the stop pin 33 of the rack 13, is held in the first holding position »The switch arm 51 pivots the lever 52 against the force of the spring 53? the pawl 55 falls into the catch 58 and the shoulder 54 lifts the boom 15 of the decimal pressure suppression device into the blocking position. Pay attention to the number (without a comma) ' becomes the lever towards the end of the rotation of the main drive shaft 2

*. 11 «.

24 pivoted and pushed the push rod 23 upwards * switches the pawl 18 after it is on the guide 32 of the Link 28 has slipped away over the first tooth gap, after falling into the next gap the ratchet wheel 17 and the pressure * roll one line further, towards the end of the stroke of the push rod 23 the pin 60 pushes against the bend 64 and lifts the pawl 55 against the force of the spring 56 from the catch 58 from · Since the busbar 10 has meanwhile returned to its starting position has returned, the switching arm 51 and the locking lever 52 can jump back into the initial position. Of the Pin 38 of the collecting bar .10 lifts the release member 37 so high on that the feeler 43 of the command sensor 35. the Ansehlagstift 33 of the command transmission rack 13 is not touched more.

Double-skipϊ

In the function keyboard of the machine is' the command "total" entered. The main drive shaft 2 rotates clockwise again. The collecting bar 10 goes backwards and the Computing racks transmit a value contained in the counter into the printing unit, at the same time the command transmission rack 13 slide backwards to the seventh position until it is held in place by the function control unit »Shortly before completion During the first lifting phase of the collecting bar 10, the pin 38 falls into the notch 42 of the release element 37. The command sensing element 35 falls, since the stop pin 33 of the step 45 is opposite, under the train of the spring 40 to the third Switching position through "The arm 39 bangs against the pin 47 in the backdrop 28 and puts it kippend.um so that now the limit stop 29 rests on the shaft 12, laughing at the As in the previous example, when the value is printed, the cam 3 swivels the lever 24 and the push rod 23 pushed up. The safety latch 18 linked to the switching plate 20 engages, since the guide 32 of the link 28 is swiveled upwards, immediately into the first tooth gap of the

- 12 -

Ratchet wheel 17 and rotates when pivoting the switch plate 20 the platen shaft 12 by two teeth, d * h. the Print stripe two lines further, towards the end of the switching stroke, the switching plate 20 now strikes with its side Edge against the tab 48 which has been laid in its pivoting area and tilts the shift gate 28 into the normal shown development back »

In the second holding position, the command sensing element 35 held in a central position in which the switching arm 51 has already been lowered so far that the collecting bar 10 has no effect passes over him * On the other hand, the IPeder 40 can do that Do not pivot the release member 37 so far that the arm 39 strikes against the pin 47 and folds the gate 28. In This. the second stop position is the command sensing and -switching device thus ineffective.

Claims (7)

EA. 20 ^ 168 * 13. ι ». 67 Claims for protection 1. Switching device for printing calculating machines to prevent the decimal point in certain printing processes and to bring about a double line jump after certain Printing processes »characterized by one with several known command transmission elements (13, 14 * 61) working together at the same time, via a delayed machine unlockable 3? releasing member (37) controllable command sensing member (35, 62), which is designed as a pivotable bracket and is fixedly connected to the release member (37) and an actuator (39), one through the command sensing member (35, 62) lockable, in particular machine-driven moving shift linkage (51, 52, 54) for actuating a locking device (15) of the .Kommadrucktypen and one over the Actuating member (39) also by the command sensing member (35, 62) switchable control device (28) for bringing about a double interlace 2 * switching device according to claim 1, characterized in that that the command sensing element (35, 62) common to the decimal point pressure prevention and the double skip by relocating the Command transmission members (13, 14) is adjustable in three different Sehaltlagen, in the first of which it causes the comma pressure suppression and in the third it via the Actuating member (39) switches the control device (28) for transport means (20, 18) of the line interlace on a double line jump, while it has no effect in the second switching position remain* 3 »Switching device according to claims 1 and 2, thereby characterized in that the control of the three switching positions of the command sensing element (35, 62) in the machine move * - bar command transmission members (13, 14), which in a known manner by keystrokes of a functional keyboard ο. Like. In the hub according to the respective command are limited, in the area of the command sensing element (35, 62) with limit stops (33 * 34) for coolant (43, 65) or edges (44? 45) of the command sensing element (35, 62) are provided * 4 * switching device according to claims 1 to 3, characterized in that that a pawl (61) which can be adjusted by the program control unit locks on the command sensing element (35, 62) bar pin (63) is attached « 5 »Switching device according to claims 1 and 2, thereby characterized in that on the one with the command sensing element (35> 62) coupled release member (37) a release member (37) and the command sensing element (35) from the first holding position in the second or third switch position pivoting spring (40) engages, the release member (37) with a curved path (41) on a guide pin (38) of a moving machine gear, the computing racks, symbol racks and the Command transmission links (13 # 14) on the collecting bar (10), 6 * Switching device according to claim 5 _s characterized in that the release member (37) is raised so far in the starting position of the collecting bar (10) against the force of the spring (40)? that between a Taststüek (43) of the command sensing element (35, 62) and the limit stop (33) of the command transmission element (13) a frictionless displacement of the command transmission elements (13, 14) is possible and in the end position of the collecting bar (1O) an incision (42) allowing collapse is provided in the release member (37) * 7. Switching device according to claims 1 to 6, which a Ratchet switch mechanism for line switching, and a backdrop for Switching the ratchet mechanism from one line to two line jump, characterized in that when it falls W 3 " of the command sensing element (35, 62) that with the release element (37) connected actuator (39) shifts a control link (28) to double-line circuit, with a toggle spring (31) the backdrop (.28) holds in the respective stop position. 8 · Switching device according to claim 7> characterized in that to switch from double to single line switching The gate (28) has a sliding surface (32) covering each tooth of the line switching device (18, 17), which a collapse of the transport pawl (18) via a Can prevent tooth division " 9 * Switching device according to the claims? and 8, characterized in that in order to reverse the link (28) from double to single-line switching, one arm of the link (28) has a stop surface (48) against which a sheet (20) or machine-moved line ' switching device (20, 18) pushes. 10 »Sehalteinrichtung according to claims 1 and 2, thereby marked that the Sehaltmittel for the decimal pressure * binding (15) an arm (51) which can be raised by the command sensing element (35) in the path of movement of the collecting bar (1ö) have, via which a pivot lever (52) lifting the decimal pressure suppression members (15) into the blocking position by machine is pivotable in the locked position. * Switching device according to claim 10, characterized in that that the arm (51) with a slide pin (50) over its switching path on a guide track (49) of the release member (37) can be moved and through a leather (56) on this in Plant is held. ** 4 4 ■ * · "■ * 12 »Switching device according to. Claim 10, characterized in, that on the pivot lever (52) of the decimal pressure suppression device (54 »15)> to which the switching arm (51) is hinged, a delay element (55) is articulated, which the locking device (54, 15) "up to the line feed in the blocked position holds * 13 * switching device according to claim 12, characterized in that that the delay element is designed as a ratchet lever (55) which is in the pivoted position of the pivot lever (52) in an East (58) and has a Ansehlagarm (64), over which it is through a stop (60) in the The line switching linkage (23, 20) can be lifted out again at the line jump *