DE1499240B2 - KEYBOARD ENTRY DEVICE - Google Patents

Description

1 2

The invention relates to a keyboard combination for the following code combinations input device for generating code signals, where characters after the main code group or to each key has several characters after the additional code group, using the toggle lever, Selectable characters are assigned and where to each object of the invention is the constructive GeKaste Code generator to control a code switching stage 5 design of the code selection when assigning the characters are hinged. a triple keypad to two code groups.

The field of application of the invention is input. This object is achieved according to the invention by the

of data in an electronic calculating machine or a combination of the following features: By

another data processing or transmission- a multitude of keys with first row, second row-

system. io and third row characters, with the first row characters

A keyboard input device is generally used to send out the characters of a main code group, the second a sequence of code combinations, the serial characters of an additional code group and the each consisting of several binary step characters speaking one by selection of a key are assigned to the additional code group, furthermore by Correct characters (or a number, one 15 multiple coders for each key, with the first punctuation mark or a symbol) or row and second row coders each of the main ones Space between two one another or additional code groups are assigned and the represent the following words, which by an empty code generator for mixed assignment of the third row keystroke given is. character main and auxiliary code selection items

Even if with increasing prevalence and 20 show, also through first, second and third improvement of data processing machines the series switch keys, when pressed the respective The number of characters to be processed compared to the code transmitter with the relevant button levers Has increased, it has been impossible to be engaged within the, further through an on-the-order keypad of a keyboard input device the required switch keys and the code selection elements To accommodate number of keys, as the 25 speaking code group switching display and off keypad must be easy to use. It will be the solving stage, each by the first row switchover required, the field of view of a button three button or when the third row switch button is pressed To assign characters to the number of times on by the main code group selection element at an Keypad with a limited keystroke of the relevant key in a main code number to multiply housed characters. 30 release position and on the other hand each through the You have to use three shift keys, the second shift key or when you press the when the key is pressed, one of the three font third row shift key by the additional code character choose. It is also useful to select the selection element when the key concerned is pressed Character is switched according to a usual four in an additional code release position, furthermore serial keyboard of an office typewriter on the 35 through a character code contact switching stage, which is in AbTastenfeld to distribute. depending on the position of the code group

For the processing of numerous code combinations, switching indicator and trigger level the respective In an electronic computer, it is useful that the code transmitter connects to code contacts, through a the code combinations, the characters within the code group contact switching stage, which are set in the position of each character group (for example in 40 change of the code group switchover display and the group of Latin characters, the trigger level is switched and then each on Russian character that sends out the Greek character code group signal that the affiliation characters, the Japanese kana characters and / or the following character code signals or the digits) in each case in accordance with the code group concerned, furthermore by see the code combinations and the sequence 45 a coding trigger stage with a trigger control Characters (for example, the alphabetical level, with first and second shift order and the sequence of the digits) delivery is triggered immediately, and in be sorted. the third row switchover only triggers

It has therefore been proposed that this code occurs when the code group switchover display combinations are preferably assigned to the characters in 5 ° and trigger level in the order in which the code key is assigned.
combinations form a single code group. In the construction of a keyboard input device of the present case, however, it is preferable to use th type, it proves to be advantageous that with Aufzwei code groups or two assignment sequences to divide the upper row and lower row characters use the main and additional code groups 55 on the main or .Additional code group (or can be renamed. One is reversed) each of the middle row characters of the two groups (for example the main code group and the remaining middle row group) are assigned to the Latin characters and the individual characters of the additional code group because the other group is assigned to the other characters- The device according to the invention allows the hand group or the other character groups to be assigned a fairly large number of scripts, so that the Latin characters characters at least two types of alphas pray through the international standard code combination, Z digits, punctuation marks and symbols on a data processing machine and the respective keypad. The respective code other characters can be designated by arbitrarily selected combinations for data processing, telex code combinations. In each case suitably adapt for purposes or the like,
If the code group switchover indicator and special code combinations are required, the respective release level is in the main code selection position, it is indicated whether such a special code - the coding trigger level for all first row fonts -

3 4

characters as well as for the third row characters existing with the main code group, correspondingly coupled third row characters ready, so that each usual distribution of the remaining alpha bit main code group signals are triggered. In groups of characters distributed over the keys, the opposite switching position of the code groups and through a respective assignment of each character change indicator and trigger level, code groups become a code group,
signals of the additional code group triggered. When the upper row characters hit the first row shift key, the key is switched to the group of Latin characters and the lever arrangement in a first row position, group of Arabic numerals belong and are where all first row coders are essentially in readiness as well as on the keypad one for the respective keystroke and where the io office typewriter distributed. The sub-string code group switching indicator and trigger level each character form the characters of the Russian alphabet, because the Greek or Japanese alphabet is switched to the main code group position. The function of the second shift key is kana alphabets. Some of the center row characters accordingly. When the third row toggle is pressed, characters that appear frequently in connection with keys are each represented by the third row encoders in 15 with the upper row characters.
brought ready position and their code selection The invention is in the following on the basis of an elements are available for switching the trigger control stage preferred embodiment in conjunction with. When a key is pressed, it is explained in each case via the drawings. It shows
the code group selection elements form a circuit of FIG. 1 a keypad arrangement of an invention code group switchover display and control stage, including a keyboard input device according to the invention,
only after the respective switching of the code groups - Fig. 2 an allocation scheme for code combination contact switching stage a triggering of the character code nation on ru the characters of the keypad after contact switching stage takes place. The coding trigger- Fig. 1,

control stage ensures in each case that the character F i g. 3 is an exploded perspective view

code signals only after the transmission of the 25 View of the main components of an execution

intermittent code group signals are sent. form of the invention based on the subscript

This is switched by temporarily blocking the characters,

Coding trigger level causes. F i g. 4 is an enlarged, partially sectioned

In the following description, the side view of the encoder part is in the switchover position

First row, second row and third row order as 30 for the upper row and lower row characters,

Designated upper, lower and middle row position. The F i g. 5 is a similar view of the encoder part;

Code encoders are in the form of code group bars. where in the upper row and lower row switching state

The code group selection items are unintentionally depressed as a code character key

formed group switching cams. The code group is kept,

Switching display and trigger level is in the form of a 35 F i g. 6 is a view for the relationship between

four-link coupling formed. two exciter plates and an intermediate lever in the

In a further development of the invention, it is proposed that additional code switching position,

that the release control stage a coding release F i g. 7 shows a section along the line AA in FIG. 6,

suppressor lever, which by the third row- F i g. 8 is a partially sectioned side view

toggle key in the sense of a suppression of the 40 mutual position of two exciter plates and

Coding trigger is switched, a first, on an intermediate lever in the main code group

the code selection elements and the code group switching position,

9 shows a partially sectioned side view of the release element, which in the third row changeover position of the code transmitter part in the middle row changeover position,
when a key is pressed, the character of which belongs to the code group shown in a similar view of the code transmitter part in Fig. ten is

11 in a partially sectioned side view of one of a key, the character of which does not belong to the characters set in the code group 50 middle row code plate for a main code group changeover display and trigger stage and an automatic code group code group, the release member select switchover and trigger suppressor release stage in the end of a changeover period of the code group additional code group changeover,
Switching and triggering locks, as well as another F i g. 12 comprises an exploded, perspective release member which, in each case after a change in the automatic code group switchover of the position of the code group switchover indicator and trigger suppressor release stage in the same and trigger stage, releases the suppressor lever. Switching state as in Fig. 11,

In a further embodiment, the invention is characterized by an arrangement of the keys according to one of FIG. 11 according to the arrows CC in Fi g. 12, the usual four-row keyboard, with the characters min- 60 Fig. 14 in a similar rear view of Fig. 11 belonging to at least two different alphabets, digits, automatic code group switching and triggering systems, groups of punctuation marks and groups of symbols, suppressor release stage in such a switch, by a first from the First row lettering position, where a central row code plate is posted for a main character and some of the third row characters, code group characters, as long as the standing position, corresponding to a usual distribution 65, is the same switch position as according to FIG. 11,
at least one of the alphabets is available on the F i g keys. 15 shows a similar view of the character group divided into code groups, furthermore by means of a second switchover and trigger suppressor release stage in from the second series characters and the remaining main code group switchover,

5 6

16 shows the auto- a further special code combination 0001111 in a rear view of FIG. 11 matic code group switchover and release sub- expressed. These two code combinations pusher release level in a switching state where one does not listen to any code group and is labeled in a more detailed manner by the middle row code plate for an additional code group keyboard input device is posted as long as the registered way is automatically sent out. Any delivery device switched to additional code group position stood between two consecutive words is, and is by another special code combination

17 shows a partially sectioned side view 0100000, which likewise does not relate to any code of a Code plate clutch release part, belongs to a disengagement and when a space bar is pressed release suppressor stage and a release suppressor io is sent out. For example, represents a code release level in middle row switchover position. combination 1001111 as main code group combination

. nation a Latin letter "O" and at

1. Keypad and code combinations Use as an additional code combination a Russian

According to FIG. 1 the Latin letters are the letters »H«. Of course, together with the Arabic numerals, punctuation marks and 15, a different type of linkage between the code some symbols as well as the Russian letter combinations and the characters is possible. Together with other symbols on the keypad, it is understandable that all upper row and subfields of an embodiment of a keyboard input row characters are assigned to the main code groups and attaching devices essentially as well as on the keystroke code group combinations and field of an office typewriter for Latin or 20 that each part of the middle row characters distributes the Russian characters. The keypad of these main code group combinations or the additional embodiment also has an associated upper row code group combination.
Shift key (or two shift keys with im The keyboard input device sends due to an essentially identical function) and a space key, character keystroke (which can also relate to a number, furthermore a middle row shift key as with an as a punctuation mark or a symbol) a two-stage switchable portable typewriter and code combination off, the respective font a sub-row shift key, which is assigned to an office character and is not used by a previous typewriter. In connection pressing a shift key is determined. If with this embodiment it should be pointed out, in particular the upper row shift key, that Latin letters and Arabic numerals as 30 are pressed, then subsequent strokes of upper row characters are distributed on the keys character keys for sending code and that a considerable number of keys in the middle combinations of the respective Upper row characters, row position still has free spaces. This is because, when the sub-row shift key is depressed, this embodiment primarily effects subsequent keystrokes which were intended for use in Japan, and therefore sending the respective sub-row character code a plurality of the characters of the combination. If the middle row shift key Japanese Katakana alphabet, which is depressed with a larger number of times, the following key frequencies occur, arranged in sub-row position abschlage, cause the transmission of middle row codes, whereas more than twenty characters with combinations, with 40 switching code combinations arranged in the middle row position if necessary for the two code groups. If necessary, one can also automatically send the Latin one. For example, if letters in sub-row positions or some of the characters want to output the sequence »UU1 = ΠΙ«, special symbols in the free middle row positions are sufficient to arrange several consecutive keystrokes. Upper row shift key, the U key, the lower row

According to FIG. 2 are a series of code combinations 45 shift keys, the IH key, the middle row shift keys 0000000, 0000001, 0000010, 0000011, ..., key, the = key, the sub row shift key and 1111110 and 1111111 a seven-digit binary key the LII key to change the required code combination codes to the characters (digits, punctuation marks and nations for main code group switchover, U, ZuSymbolen including) of the keypad after sentence code group switchover, HI, main code group fig. 1 in the order of the Latin book switchover, =, additional code group switchover and bars (from 1000001 to 1011010 for A to Z), to be sent in HI,
the order of the Russian characters (from

1000001 to 1100001 for A to il) and the Arabic 2nd coding sections

Digits (from 0110000 to 0111001 for 0 to 9) _{to- A From the key}

S ^e ° ^{so RDnet} ^ ^3β very expedient embodiment of the BER 55 _{'to an O} and sub-row code plate
can be used moderately for data processing in an electronic calculating machine. According to the F i g. Each key lever 2 carries 3 and 4. According to the present invention, most of them are a key 4 on which, in general, three font-code combinations are provided twice as those of the main characters. Used below each key code group and the auxiliary code group. At 60 heis 2 are a top of the shown code table is a code group and lower row code plate 6 for the upper row and switching from a sequence of additional code group lower row characters of the key 4 as well as a middle combination to another sequence of main row code plate 8 for the middle row character of the Code group combinations arranged by a special key 4. The code plates 6 sit each code combination 0001110 shown, which is switched between 65 with a code plate slot 60 pivotable on the two sequences. The transition of a common, fixed code plate from a main code group combination sequence to pin 30. Approximately in the middle part of each key fog 2 an additional code group combination sequence is through a key lever slot 10, in which

7 8

is slidable a switching plate 12 and a code swivels, protrudes its adjusting lug 58 in the path of the plate rocker arm 14 bearing pin 16 is seated. Each control comb 56. Thus, immediately after the Code plate rocker arm 14 can each time around the stop of a key 4, which is pivoted in upper or lower pin 16 and is switched by a code row position, the code plate setting plate rocker lever spring 18, which rotates a connection 5 shaft 54, and which to the key top 4 gemit the circuit board 12 produces, in counterclockwise upper and lower row code plate 6 is paid biased. The pivoting movement of each against the action of an associated code plate-code plate rocker arm 14 in counterclockwise return spring 36 over the area defined by the code plate direction is by a stop lever of the same slot 60 against the end face limited, which moved the lower edge of the associated switching io.

plate 12 includes. _,.,, ^ ₁ , _TT .,,, ^
Each code plate rocker arm 14 (Figs. 3 and 4) ^{from the} " ^{over " and} sub-row code plate
carries a downward ^{extension 22 to the} code contacts
an angle leg 24, which is in the upper row and each upper and lower row code plate 6 after the lower row switching position of the typewriter via 15 F i g. 3 and 4 carries two rows of code group webs, an upwardly directed cam 26 of the upper one for upper row characters and one for lower and lower row code plate 6, with a narrow row characters, the number of bars in the gap remains free. When the key 4 of a row is hit, the number of step impulses to which the associated key lever 2 is applied is the same by a common code combination. In detail, the same key lever shaft 28 in counterclockwise direction 20, each upper and lower row code plate 6 has a pivoted, which in turn due to the coupling cutout 62, on the upper edge of a number of development of the angle leg 24 of the respective code main code group webs 64 for the respective code plate rocker lever 14 the associated Upper and combination of the upper row characters and on lower row code plate 6 around the code plate pin whose lower edge of a row of additional code 30 is pivoted clockwise. A code plate sheet of the sub-row characters held on 25 group webs 66 for the respective code combination on the machine frame. When the button 4 is spring 34, due to its spring force, it is biased against a "U" in the upper row and the rear lug 32 of each code plate in the lower row. Characters »III« belong to the code groups - If an upper and lower row code plate 6 verstreihen 64 and 66 main code group ridges 64-1, is pivoted and the upper edge of the rear 30 64-3, 64-5 and 64-7, the In each case in reverse nose 32 from the lower end of the associated code sequence of the code combination 1010101 ent plate leaf spring 34 comes free, the code plate speak, and additional code group webs 66-2, 66-4, leaf spring 34 on the upper edge of the nose 32 on. 66-5 and 66-7, which also follow in reverse order, from this that the code combination 1011010 also corresponds to the return of the key sequence,
hebeis 2 in waiting position under the influence of the relevant 35 The main code group web row 64 acts after the associated key lever spring 35, the pivoted F i g. 3 and 4 with a main code group strip row upper and lower row code plate 6 by the code 74, whereas the additional code group web plate leaf spring 24 cooperates against the action of a code row 66 with an additional code group strip row 76 plate return spring 36 in the pivoting manner. As soon as an upper and lower row position is held. 40 code plate 6 by the code plate adjusting shaft 54 against

the front side is shifted, all pivot

B. Control of a pivoted upper, main and additional code group webs that are

and sub-row code plate associated code strips each around pivot bearings

70. For example, the main and

Each upper and lower row code plate 6 carries after 45 set code group webs 64-1, 64-3, 64-5, 64-7, 66-2,

the F i g. 3 and 4 approximately in the middle part of the lower edge 66-4, 66-5 and 66-7 respectively main and additional code

a downwardly protruding clutch release group strip 74-1, 74-3, 74-5, 74-7, 76-2, 76-4,

web 38, which is on a common coupling 76-5 and 76-7.

transverse web 42 rests on the two swivel bearings The main and additional code group strips 40 is pivotable. The coupling crosspiece 42 is 50 74 and 76 are shown in FIG. 3 each with a main after 17 directly on a clutch code group and additional code group exciter plate release lever 44 on. When an upper and lower row 84 and 86 are coupled, the code plate is horizontally aligned 6 can be pivoted in a clockwise direction. According to FIGS. 3, 6 and 7, the coupling crossbar 42 pivots the Weil for two corresponding Codestegstel coupling release levers 44 around a pivot bearing 55 lungs of the upper and lower row code plate 6 pair-45, so that the same from a release lock plate 46 wise a main code group and additional code comes free. As a result, the trip gate group exciter plate 84-1 and 86-1 is arranged. the lever 48 by means of a release spring 50 under guidance number of these exciter plate pairs is the number of abutted on a release pin 52. This against steps in the code combinations same. Every Movement of the 60 main code group exciter plate, for example 84-1, directed towards the front of the device, Release link lever is a not shown has an upwardly facing cam 85-1, the Code plate drive coupling free, so that you can turn right up to the corresponding code bar Rotation of a code plate adjusting shaft 54 with one of the main code group strip row 74 extends where-adjusting comb 56 takes place in the counterclockwise direction. Each against each additional code group exciter plate 86-1 one Upper and lower row code plate 6 carries rear 65 downwardly directed cam 87-1, the up uneine Adjustment approach 58, which with the adjustment comb 56 indirectly to the associated code bar of the addition Intervention can come. When a row of upper and code group bars 76 is enough. When through the Sub-row code plate 6 in the clockwise direction as main or additional code group webs 64-1 and 66-2

the main code group or additional code group and sub-row code plate 6 from the path of the adjusting strips 74-1 and 76-2 are pivoted, when a comb 56 comes out, the upper and lower slide is performed the corresponding main code series code plate 6 through the coupled code group or additional code group exciter plate against plate return spring 36 while pivoting in Gedie Front side. Immediately after a stop 5 backwards counterclockwise towards the rear button 4 shown in the upper row or set (F i g. 3 and 4). At the same time, the ver sub-row switchover therefore moves the code-shifted exciter plates 84-1 and 86-1, which are assigned to the plate adjusting shaft 54 via the upper and lower row code strips 74-1 and 76-1, according to the code plate 6 and some of the main code groups- F i g. 3 and 4 by the respective exciter plate and additional code group strips, the main or Zu- io springs 110 reset. Even the swiveled ones set code group exciter plates 84-1, 84-3, 84-5, 84-7, intermediate lever 90-1 and the swiveled out Code-86-2, 86-4, 86-5 and 86-7. contact levers 104 are each

In each case, to two main lever or code contact springs 112 or 114 arranged in pairs, return and additional code group exciter plates, for example placed. Even if the button 4 is depressed 84-1 and 86-1, according to FIGS. 3, 6, 7 and 8 15, the upwardly directed intermediate lever 90-1 is supported according to FIG. 5, the total number of which is Cam 26 of the reset upper and lower number of the step signals within the code combination series code plate 6 on the end face of the projection 22 is the same nation signals. A fore leg 92 with the corresponding code plate rocking lever 14 from an angular attachment 94 is arranged between each exciter and pushes the code plate rocking lever 14 together with a pair of plates 84-1 and 86-1. In the sub-20 men with the switch plate 12 against the effect of the series switching position for an additional code group- the switch plate front side pressing switch plate operation is an end face of the angle extension spring 116 along the key lever slot 10 back, an angle extension 88 of the additional code in question- Thus, the return movement of the upper - and group exciter plate 86-1 at a small distance from sub-row code plate 6 not obstructed. An opposite and is according to the F i g. 6 and 7 of a 25 set depression of a key 4 thus leads to a similar angle approach 89 of the associated main no repetition of the coding process, and code group exciter plate 84-1 moved away. A stop of a key 4 thus leads to the transfer lever 90-1, which can be swiveled to share only one code combination,
seeds intermediate shaft 96, which with both ends in

two vertically movable shield plates 188 of a 30 3rd switch for upper row characters
Intermediate lever fork 186 described below

are stored. Each intermediate lever 90-1 has an ^A · switching function in the coding section

Recess 98, which has a passage of the angle F i g. 3 shows the components in the sub-row switching

approaches88 and 89 of the associated exciter plate state. When a top row shift key 118 couple enables. 35 is depressed, an upper row switching

At the rear end 100 of each intermediate lever key lever 119 around the key lever shaft 28 in Ge-90-1 3, 6 and 8, a coupling rod is pivoted clockwise until one 102 articulated, which in turn on a code contact downwardly directed nose 120 by means of a pin 122 lever 104 is mounted. The code contact levers, both an upper row angle lever 124 in a way of playing around 104, are on a common code 40 switch key angle lever bolts 26 in a clockwise contact lever shaft 108 pivotable and act pivoted when device, whereby a coupling rod 128 Pivoting on code contacts 106. This causes pulling towards the front side. The back end the code plate adjusting shaft 54 immediately after the coupling rod 128 has a transmission stop connected to a button 4 when switching to the lever 132, which is on a vertical bolt set code group position a frontal movement 45 130 is mounted and an upright pin 138 ' the corresponding upper and lower row code plate 6 carries. A switching device is located on the vertical bolt 130 Pivoting in the clockwise direction of all pivot levers 134 (the right leg of the Main and additional code group strips, each transmission lever 132 is below this lever Weil with code bars of the upper and lower row code 134) and by means of one on the erected pin Plate 6 are in engagement, a front-side displacement 50 138 'suspended pivot lever spring 136 is provided the associated main and additional code group. Accordingly, when the upper exciter plates are pressed down, a pivoting in a clockwise series switchover key 118 of the transmission levers 132 direction of those intermediate levers that are only used together with the toggle lever 134 in shifted additional code group exciter plates and counterclockwise pivoted, whereby a are not in engagement with any other exciter plate, 55 switchover angle lever 138 at its foot end an end-face movement of the one switching angle lever pin 139 in the counterclockwise intermediate lever hinged coupling rods, a pointer direction is pivoted. This foot end Pivoting the respective code contact lever clockwise is in the switching position for the lower row pointer direction and a contact closure of those characters or for the additional code group code contacts, the function of the desired code combination directly on the toggle lever nation of the additional code group according to 134.

Sub-row characters of the pressed key The switching angle lever 138 has an angle corresponding to stop 140 (Fig. 11 and 12), which is in additional code

D. Resetting the swiveled and _fi group changeover position with an inside stop

shifted upper and ^{lower row code plate 65 14} J emes spring retainer 144 is in engagement, which is loose

^F on one of a not shown Antnebs-

The code plate adjusting shaft 54 continues to rotate, and the switching adjusting shaft continued to be driven by the motor as soon as the adjustment lug 58 of the displaced upper 142 is seated. When the switching angle lever 138 in the

11 12

described manner in counterclockwise direction bolt pairs 196, 196 ' and 198, 198' controlled, which is pivoted, the angle stop 140 is lifted from the sliding in vertical slots 192 and 194 of each shield inner stop 146 so that the spring holder plate 188 of the intermediate lever fork 186 fitted 144 is released. The pen holder 144 has after are. When the profile roller levers 176 in clockwise FIG. 2 a hole 148, into which one end of a coupling direction can be pivoted, the reversing loop spring 150 is firmly suspended, which in left-hand pins 180 the intermediate lever fork 186 counter to the screw direction, i.e. in the direction of rotation, to the switching action of two intermediate lever fork springs 200 is wound in the adjusting shaft 142. The other end of the vertical direction.

Clutch loop spring 150 is firmly suspended in a narrow hole. This upward movement of the shield plates 188 154 of a switching shaft 152. One of the intermediate lever fork 186 lifts all the intermediate levers, set code group profile surface 156 of the switching shaft, for example 90-1 (FIGS. 3, 6, 7 and 8). The 152 is in the additional code switchover position with a stroke of the intermediate lever 90-1 is set so that switchover lock 158 is engaged. The angle stop that the angle attachments 94 of the same exactly on the 140 of the switching angle lever 138 then engages in the angle attachments 89 of the main code group exciter inner stop 146 . The clutch wrap spring 15 plates 84-1 are aligned (Fig. 8). Here, advertising 150 as a result, on the Umschaltstellwelle which the intermediate lever 90-1 (F i g. 3 and 6) not firmly grasp by 142, and the changeover shaft stand 152, the respective intermediate lever spring 112, which remains to back. As soon as the spring holder 144 is released through the slits 202 of the intermediate lever mechanism, the coupling fork 186 engages the lugs which are articulated through the loop spring 150 on the switching adjusting shaft 142 20, in their respective positions against the lower one when the spring holder is closed 144 rotates so that an end face of the intermediate lever fork 186 is taut. Torque from the switching adjusting shaft 142 to the coupling between each intermediate lever 90-1 switching shaft 152 is transmitted. and the associated coupling rod 102 takes place with

The spring holder 144 has (FIGS. 11 and 12) an outer stop 160 by means of a pin engaging in an elongated hole, the outer stop 160 opposite the inner 25 (FIG. 6), so that the intermediate stop 146 is offset by 180 ° during the upward movement. As soon as the lever 90-1 has rotated the respective code contact lever 104 spring holder 144 by 180 °, it still remains in the starting position where, by means of an outer stop 160 against the angle stop 140, the respective code contact lever springs 114 against the switching angle lever 138, which is described in the common code contact lever stop 204 enclosed manner pivoted counterclockwise 30 are biased. The respective minor is (cf. the pivoting movement of each coupling rod 102 about its position in FIG. 11, shown in dashed lines). FIG. 14 shows this position in the respective rear end (FIGS. 3 and 6) can also act back on the intermediate levers 90-1 in unbroken lines in the rear view of FIG.
Meanwhile, the switching shaft 152 rotates inwardly. . ,. _TT ,
Following their inertia further, so that the couplings 35 solves ^B · sending a Hauptcodegruppenlungsschlingfeder 150th After a 180 ° turn, switchover code combination and the following
the rotation is activated by the toggle lock 158 code combinations
The above-mentioned 180 ° rotation of the switching shaft shift lock spring 168 (FIG. 12) with a main 152 causes according to FIG. 3 by a protruding code group profile surface 166 of the switching shaft 152 40 profile nose 208 of a switching code cam 206 which comes into engagement, which is offset by 180 ° with respect to the additional code pivoting of a main code group contact group profile surface 156. At hebeis 212 in the sense of closing a main release of the upper row shift key 118 (FIG. 3) code contact group 210 so that the main code group of the upper row shift key lever 119, the pen shift code combination is sent out. An upper row angle lever 124, the coupling rod 128, the 45 subsequent stop of a key 4 (Figs. 3 and 4), transmission lever 132 and the switching pivot effect in the same way as in the described lever 134 by an upper row key spring 170 to- switch position for lower row characters, that reset, the angle stop 140 of the changeover the angle leg 24 of the code plate rocker lever 138 remains in its outer position 14 the associated upper and lower row code plate 6 position (Fig. 11 in dashed lines), where it depresses through 50 and the code plate coupling device outer stop 160 of the spring holder 144 releases the device. The subsequent rotation of the code will keep. plate shaft 54 moves (Figs. 3 and 7) the lower

With the 180 ° rotation of the switching shaft 152 printed upper and lower row code plate 6 face two cam profiles 172 (Fig. 3) are rotated, side, so that the code group webs 64-1 and 66-2 sit firmly on the switching shaft 152 and one 55 move the exciter plates 84-1 and 86-2. Since the profile roller 174 push upwards, whereby a profile intermediate lever, for example 90-1, is now pivoted in the roller lever 176 around a horizontal bolt 178 in the main code group release position (FIG. 8) in a counterclockwise direction. A switched on each and with the main code group exciter profile roller lever 176 seated switching pin 180 sits plates 84-1 are in engagement, only the movement is slidable in a hole 184, which is formed in each case in 60 movement of the main code group exciter plates on the side frame plate 182 . Transmitted to the respective code contacts, whereby the switching pin 180 engages in a horizontal slot 190, the desired code combination is sent out, which is the one that is formed in a shield plate 188 of the upper row characters of the struck key 4 between lever fork 186 , so that the shield accordingly assigned to the main code group.
plates 188 along the side frame plate 182 in different 65, ...
tical direction | be moved. This vertical ^C Repeated Shift
Displacement of each shield plate 188 is in if the Oberreiheumschalttaste 118 repeats each side frame plate 182 is struck fitting guide, as long as the machine main

code group position is switched, the switching lever 134 (Fig. 3) is pivoted in the counterclockwise direction. Since the leg of the switching angle lever 138 has already been pivoted backwards (in the main code group switching position) during the previous switching operation, the pivoting of the switching pivot lever 134 is ineffective, so that the switching shaft 152 stops.

4. Toggle release for sub-row characters
A. Switching for sub-row characters

When a lower row shift key 214 (Fig. 3) is depressed, a lower row shift key lever 216 is pivoted counterclockwise so that a coupling rod 218 is pulled at the front (the transmission device is not shown since it is similar to the transmission device of the upper row shift key 118 described above). The coupling rod 218 pivots a lever 222 seated on a release shaft 220 in a clockwise direction counter to the action of a spring 224 , whereby a release lever 226 wedged onto the release shaft 220 is also pivoted in a clockwise direction. A release bolt 228 seated at the foot end of the release lever 226 rests in the main code group switchover position on the rear side directly on the foot end of the switchover angle lever 138 . When pivoting in the clockwise direction, the release lever 226 strikes the foot end of the switching angle lever 138 and pivots the same in the clockwise direction (FIG. 11 in solid lines). Consequently, the angle stop 140 of the switching angle lever 138 comes free from the outer stop 160 of the spring holder 144 , so that the switching adjusting shaft 142 takes the spring holder 144 with it. Accordingly, the clutch loop spring 150, as with the switchover to the main code group position, produces a non-positive connection between the switchover adjusting shaft 142 and the switchover shaft 152 , so that the latter is rotated by 180 ° until the inner stop 146 of the spring holder 144 engages with the end angle stop 140 of the switchover angle lever 138 comes and the additional code group profile surface 156 rests against the toggle lock 158 (FIG. 12).

Thus, a stop of the sub-row switchover key 152 (Fig. 3) causes a rotation of each cam profile 172 and the profile roller lever 176 coupled to it in a counterclockwise direction until the profile rollers, for example 174, are pushed inwards by switching profile roller lever springs, for example 230, and by intermediate lever fork springs 200 against the cam profile axis are drawn so that they reach the surface area of each cam profile closest to the axis, for example 172 . As a result, the shield plates 188 of the intermediate lever fork 186 are pushed downwards by the springs 200 in accordance with the downward movement of the switching pins 180 of the profile roller levers 176 , as a result of which (Figs. 3, 6 and 7) the intermediate lever fork 186 is switched into the additional code group switching position, where the intermediate lever 90 is -1 (F i g. 6 and 7) are in the engagement position for the respective additional code exciter plates 86-1 .

The changeover shaft 152 (FIG. 3) also rotates the changeover code cam 206, which causes an additional code changeover code combination to be sent out via an additional code group contact lever 232 ' and an additional code contact group 214'.

When the lower row switchover key 214 returns to the starting position, the release lever 226 is also reset, but the angle stop 140 of the switching angle lever 138 is held in the swiveled-in position (FIG. 11 in solid lines) by the inner stop 146 of the spring holder 144.

B. Unintentional switching operation

If the upper row switchover key 118 is depressed as long as the lower row switchover key 214 is pressed, the switchover pivoting lever 134 does not follow the counterclockwise pivoting of the transmission lever 132, but only leads to a stronger tension of the pivoting lever spring 136, since the toggle pivoting lever 134 is already through the release bolt 228 at the foot end of the release lever 226 is pivoted in the counterclockwise direction when the release lever 226 is held in the clockwise pivoting position by the struck sub-row switchover key 214.

When the sub-row switching key 214 is repeatedly depressed in the sub-row switching position of the apparatus, the release lever 226 is repeatedly pivoted in the clockwise direction. The foot end of the switching angle lever 138 , however, remains in the front position (additional code group switching position), so that the release lever 226 is pivoted ineffectively and the switching shaft 152 does not rotate.

5. Switchover for middle row characters

A. Switching the circuit board

When a middle row shift key 232 (Fig. 3) is pressed, when the typewriter is in the upper or lower row shift position, a middle row shift key lever 234 is pivoted in the counterclockwise direction, the downwardly directed nose 236 of which by means of a pin 238 a middle row shift angle lever 240 around the shift key angle lever pin 126 in Pivoted clockwise, so that a coupling rod 242 is drawn against the front side. This displacement of the coupling rod 242 triggers a coupling device, not shown, which initiates a complete revolution of a switching profile disk 244. As a result, a sliding roller 248 seated on a switching angle lever 246 is pressed down, whereby the same is pivoted together with a firmly keyed switching shaft 247 in a clockwise direction until the rear end of the switching angle lever 246 engages under the top edge of a ratchet lever 252. Thereby engages the notch upper edge of the pawl lever 252 under the action of a latch lever spring 254 in the rear end of Umschaltwinkelhebels 246 a, so that it can not be reset by the Umschaltwinkelhebelfeder 256, even after a full revolution of the shift profile disk 244. On is not the right end of the changeover shaft 247 a lever 258 firmly wedged, which in turn is articulated by means of a coupling rod 260 to a switch web 264 which is biased by a switch web spring 262 in the counterclockwise direction. From this it follows that with

15 16

Pivoting the switching angle lever 246 in the clock code plate rocker lever 14 through the articulated

pointer direction and when it engages in the circuit board 12 moved backwards and

Ratchet lever 252 of the switching web 264 in its order (Fig. 10) as a result of the contact with the rear surface of the

two bolts 266 pivoted in the clockwise direction angle leg 24 on the end face of the cam 27

Position is held. 5 of the center row code plate 8 clockwise

The switching plate 12 of each key lever 2 pivots because the middle row code plate is already in

(F i g. 3 and 9) has a downward starting position and is reset by the

Leg 268, which in each case by means of the circuit board code plate pin 30 on the evasive backward

spring 116 is held on the switching web 264. Is hindered by the outward direction. As soon as button 4 is released

the pivoting of the switching web 264 will be so, the code plate rocker arm 14 is through the

with the switching plates 12 pushed backwards. Here- code plate swing lever spring 18 in counter-clockwise

by the code plate rocker arm 14 are pivoted direction, whereby the angle leg

moved backwards until their respective angular 24 is in the desired central row position (Fig. 9)

leg 24 directly above the cam 27 which is each moved,

respective middle row code plates 8 are available. Each switching 15

Plate 12 has an angle leg 300, which is on the 6th central row actuation

the upper edge of the associated button lever 2 same. ,. · ™ _TT j

tet to a pivoting of the circuit board 12 by ^A " ^V ° ^{n ei} * ^{er key} / ^U emer main code group

exclude pin 16 in counterclockwise direction or additional code group switchover bar

eat. 20 If a button 4

. ,. , is posted, presses the angle leg 24 of the

B. Release suppression m middle row switching associated code plate rocker arm 14 the up-

The switching angle lever 246 (FIG. 17) carries on the downwardly directed cam 27 of the coupled Lower end of his leg a coupling rod middle row code plate 8 down, so that this middle-276, whose front end is pivoted by means of a slot 280 on 25 series code plate. The middle row Trigger suppressor angle lever 278 is coded plate 8 as are the upper and lower steering is, which is fixed on a horizontal bolt 277 gela series code plate 6 in the pivoted position is. Hold on to the front top and bottom edges.

of the trip suppressor angle lever 278 are each- A center row code plate 8 carries on its lower part in the opposite direction extending 30 side next to the clutch release web 38 either Trigger suppressor noses 282 or trigger release - a main code group switching cam 304 (Fig. 4, noses284 attached. As soon as when pressing 11 and 14) or an additional code group switch-center row switch key 232 of the switching angle cam 306 (FIGS. 16 and 17). When the center row lever 246 clockwise swiveled characters belonging to the main code group is missing Position is latched, the trigger suppressor 35 of the rear additional code group switching cam kerwinkelhebel 278 by means of the coupling rod 276 in 306, and it is only the frontal main code group clockwise direction pivoted. These swivel changeover cams 304 are present. If, on the other hand, a trip suppressor spring 286 supports the center row character for the additional code, which belongs weaker than the switching angle group is missing on the central row code plate of the lever spring 256 is. Due to this pivoting 40 main code group switching cam 304, and it is of the trigger suppressor angle lever 278 in clock - only one additional code group switching cam 306 forward direction the release suppressor nose 282 is at hand. The main code group switching cams 304 in the path of a release suppressor web 288 of the act with a common main code group release gate lever 48, which normally includes the toggle strip 310 and the additional code group code plate clutch device for the code plate 45 switching cams 306 with an additional code group adjustment shaft 54 triggers. safety edge 314 together. These toggle bars

310 and 314 are each replaced by corresponding pair

C. Unintentional switching ^actuation, pivot bearings 308 and 312 can be pivoted.

Another stroke of the center row toggle button 50

232 leads to a further tightening of the coupling rod B. Automatic code group switching device

242 and a release of the coupling device with a release suppressor release stage
device, so that the switching profile disk 244 another

Times around. The upper leg of the Umschaltwin- The main code groups and additional code groups-

Lever 246, however, was not in the raised 55 switching strips 310 and 314 (Fig. 3 and 11 to 16)

Position has been reset because it works in the lower position with a main code group switchover

Position was locked by the ratchet lever 252. release lever 316, which is mounted on a stub shaft 318

A second depression of the middle row switchover is superimposed, or with an additional code group switchover.

Taste is therefore ineffective. Shift release lever 320 together, which is on a

When a key 4 is stored in the upper or lower row 60 stub shaft 322. Immediately in each case

switch position is held down, grain next to these release levers 316 and 320 are a

Men the associated code plate rocker arm 14 and main code group trigger release lever 324 and a

the switch plate 12 to a position (Fig. 5) where the additional code group release lever 326 is

Angle legs 24 are arranged between the upwardly directed ones, each on the stub shaft 318 or

Cams 26 and 27 of the respective upper and lower 65 322 are mounted. The trip release lever 324 is

row code plate 6 or middle row code plate 8 with a main code group spring 328 on a pin

enters. When the center row toggle button 232 in 330 of the main code group release lever 316 is on.

this case is depressed, the concerned is tensioned. The auxiliary code group trigger release lever

17 18

326 is similarly activated by an additional code group switchover trigger web 372 of the additional code group switchover.

penfeder 332 is separated from a similar pin 344 of the connection release lever 320. In the main

Set code group release lever 320 tensed. The code group switching position (Figs. 14 and 15) is

Main code group trip release lever 324 has the main code group switch pin 366 of the

a widely projecting rear extension 336, separated at its 5 main code group switchover trigger web 370

At the top is a sharp-edged main code group and the additional code group switch pin 368 is in the un-

Section 338 is formed. In a similar way, the indirect proximity of the additional code group switchover

Auxiliary code group trip release lever 326 a trip bar 372.

wide front attachment 340, at the top of which with the respective foot edges of the release release

end of a sharp-edged main code group incision io lever 324 and 326 (Fig. 11 to 17) is in engagement

342 is formed. one on a trip release angle lever 290

Provided between the rear lug 336 of the master code (Figs. 11, 12 and 17) seated release reel is the group release release lever 324 and the front 289. The angle lever 290 sits directly on the extension 340 of the additional code group tripping release bar next to the tripping suppressor angle lever 278 hebeis 326 (FIGS. 3 and 11 to 16) is on a horizontal center pin 344 that can be swiveled on the horizontal bolt 277 (FIG. 17) and can be switched over by a Roller tension spring 298 is preloaded in the clockwise display and switchover actuation bridge 346, which is pivotably mounted in the area of a. The foot end 350 of a downward foot portion provided slot 295 is hinged. The directed leg 348 of this toggle bridge 346 tripping release angle lever 290 ends in an Ausist through a coupling rod 164 to the foot end of the 20 release release lug 291, which is hinged in the area of the release switch angle lever 138, so that this gabenase 284 of the trigger suppressor angle lever Umschaltbetandsbedingungen- 278 and switchover. The angle lever 290 is coupled to a release cam lever 294 by means of an in bridge 346 (hereinafter referred to as the coupling rod 296 linked to the slot 295 for short) through the switchover angle lever 138, which is a release cam lever spring due to the respective main code group or locking device 281 is clamped against the ProfU set code group changeover position between a surface of a release cam disk 292, main code group stop pin 354 and a feed that forms part of the changeover shaft 152 and set code group stop pin 352 into a rear main and additional code group release cam 293 pulling position or a front pushing position, respectively 293 ' carries, each of which is small profile sections that can be pivoted. The switching bridge 346, the 30 main and additional code group profile surface 166 or coupling rod 164 and the switching angle lever 138 156 form,
form a four-member coupling 351 through

a spreading spring 162 in a main or auxiliary C. Automatic activation of a

code group position is locked and each with main code group switching code combination

the inner stop 146 or the outer stop 35

160 of the spring holder 144 cooperates. If in the middle row switching position of the keyboard

The horizontal center pin 344 carries a pivotable input device in the case of additional code group positions for the a trip release suppressor 356 (Figures 11 through previous characters (Figures 11 and 13) 16). The trigger release suppressor 356 is struck on button 4, the center row of which - forehead and back of a rolled head portion 358 40 characters of a main code group code combination is assigned by a front leaf spring 362 or a rear leaf spring pushes the main code group 364 supported by a fixed on the switching cam 304 (Fig. 4, 11 and 14) of the associated horizontal center pin 433 seated sector disk 360 against middle row switchover plate 8 carried over the main code will. These parts are set so that group switching bar 310 is the main code groups Pivoting the switchover bridge 346 in 45 switchover release lever 316 against the action of a set code position (Fig. 11 and 13) by the Um- Feder374 down. This leads via the main code switching angle lever 138 the top of the curled group spring 328 to lower the main headboard 358 by the front leaf spring 362 against code group release release lever 324 in such a the end face of the rear extension 336 at such a position where the main code group incision 338 with Point is printed slightly below the main 50 the curled head portion 358 of the release code group cut 338 lies. In the main code suppressor 356 comes into engagement, so that the group position of the toggle bridge 346 (Fig. 15) trigger release angle lever 290 does not go far enough the upper end of the curled head section 358 is pivoted to in turn release the lower trigger the rear leaf spring 364 against the back pusher angle lever 278 from its suppressor surface of the front attachment 340 slightly below the 55 position to release the code plate coupling main code group incision pressed. swivel out direction.

The switching bridge 346 has (Figs. 15 and 16) the main code group switching release lever 316 on either side of the horizontal center pin 344, however, the main code group switches over Main code group switch pin 366 and a rail 310 pivoted further until the main code set code group switch pin 368. In the additional code 60 group changeover trigger bar 370 the main code group changeover position (Fig. 11, 13 and 16) grouping shift pin 366 is depressed so that the pivoted the four-link coupling 351 the main switching bridge 346 in main code group position, level code group switching pin 366 into its raised position as the sector disk 360 is pivoted. the development in the area of a main code group switching front leaf spring 362 of the additional code group release release bar 370 of the main code group switching 65 release lever 326 is unloaded, but the rear release lever 316, while the additional code group leaf spring 364 is released from the curled head part Switching pin 368 is moved into its lowered position 358, which pivots into the main code group slot 338 is stretched to the rear where it grips from the additional code group. Meanwhile the swings

19 20

Switching bridge 346, the expanding spring 162 to and comparable F. resetting of the center row code plate automaschiebt by means of the coupling rod 164 the Winkelan- diagram Codegruppenumschalteinrichtung rash and 140 of the Umschaltwinkelhebels 138 from the solvent suppressor release means
Path of the inner stop 146 of the spring holder 144

out, so that a 180 ° rotation of the switching 5 When the center row code plate 8 by the center shaft 152 is possible. Thus, the switching series code plate spring 37 moves into its starting position shaft 152, all intermediate levers, for example 90-1, is returned, the main code group is changed to the main code group position (Fig. 8) and causes the switch release lever 316 by the spring 374 to send to the main code contact group 210 upshifted, and the main code group of a main code group switching code combination. io pen trigger release lever 324 is also after _, ". . . . ..., - ι pivoted up into its starting position so that

D. Release of the trigger suppression of _the main code group incision 338 which releases the trigger - immediately afterwards, the main code release suppressor 356 pivots. The release

group release cam 293 the release cam suppressor 356 is therefore (Figs. 14 and 15)

disk 292 (Fig. 17) the release cam lever 294 15 on its rolled head part 358 through the rear

against the action of the release cam lever spring 281 leaf spring 364 against the rear surface of the front

counterclockwise, so that via the coupling set of the additional code group release lever

rod 296 of the trigger release angle lever 290 pushed into 326. The switching bridge 346 remains in

Is pivoted clockwise. This pushes main code group position (Fig. 15) to thereby

the trigger release nose 291 the trigger release nose 20 to indicate that the keyboard input device is in the

284 down so that the release suppressor win main code group changeover position is switched.

rocker arm 278 in its inoperative position.

is panning. The release link lever 48 switches ^G - Continued additional code group actuation

now the code plate coupling device, so if with middle row switching for additional code

that the code plate adjusting shaft 54 rotates once. 25 group operation (Fig. 11 and 13) a button 4 with

During the period of time from striking the one center row character of the add-on code group

Button 4 is depressed until the code plate adjusting shaft 54 rotates, the additional code group presses

the middle row code plate 8 (Fig. 3 and 4) by switching cams 306 (Fig. 16) of the respective middle

the associated code plate leaf spring 34 low row code plate 8 via the additional code group

presses held. Meanwhile, a reset switch bar 314 pushes the additional code group switchover

attachment web 376 of the center row code plate 8 between release lever 320 against the action of a spring 382

Balls 380 of a ball lock known per se. Since the auxiliary code group switch pin 368

378 (FIG. 4), so that even when it hits, one is not in any position at this point in time where

another key no similar backward approach to the downward movement of the additional code group

other middle row code plate between the balls of the 35 switch release bar 372 remains, the changeover remains

Kugelgesperres 378 can penetrate. Self-evident switching bridge 346 in the additional code group position.

The upper and lower row code plates are lent- Therefore, the intermediate levers also remain, for example

For example, six similar back approaches 377 and a wise 90-1, in their additional code group positions,

Similar ball lock 379. During a rotation and no shift code combination is sent,

the code plate adjusting shaft 54 presses the adjusting comb 56 40 Since the additional code group incision 342 now

the center row code plate 8 against the action of a failure with the trip release suppressor 356 in

associated center row code plate spring 37 front engagement comes, the additional code group swivels

sided. toggle release lever 320 (Fig. 16) add the additional code

". , _,. , group release release lever 326 far enough

E. Sending code combinations _{45 below> so that he has the} trigger release role 289 in the sense

If the middle row character of button 4 leads to a pivoting of the release release angle

belongs to the main code group, carries the respective mithebeis 290 (Fig. 17) pushes down. From-

series code plate 8 (Figs. 3 and 4) only at the release release lug 291 pivots the release

Upper edge of a cutout 62 'a number of suppressor angle levers 278 in waiting position so that

Main code group bars 64 '. When button 4 is released at -5 °, the code plate coupling device is released

for example, as a middle row character the character becomes. Now the code plate adjusting shaft moves

"=" Carries the main code group web row 54 against the pivoted center row code plate 8

64 ' from the main code group webs 64'-1, 64'-3, the face.

64'-4, 64'-5 and 64'-6, each in the reverse direction. . All main code group- F i g. 17 only at the lower edge of the opening 62 ' do a row of pen webs 64' work with the main code group / additional code group web row 66 '. If the button 4 row of bars 74 together. A frontal movement, for example the center row character "E", causes the code plate 8 to carry, the additional code group web row 66 ' consists of main code group webs, for example 64'-1, over which the webs 66'-l, 66'-2, 66 ', -3 and 66'-7 corresponding main code group bars, for example speaking the code combination 1000111 in reverse 74-1, the corresponding main code group exciter order in reverse order. Move all additional code group flat plates, for example 84-1, towards the front. Since 66 ' all intermediate levers, for example 90-1, in main group strip row 76 work together with a common additional code. Therefore sends code group position, the code contacts send out the frontal shift of the middle row code clocks 106 now the main code group combination plate 8 now sends out the desired code combination, which is assigned to the middle row characters which is assigned to the middle row characters according to the net. Additional code group is assigned.

21 22

When the pivoted-out and displaced center plate adjusting shaft 54 is pushed back around the lower row code plate 8 into its starting position by the center row code plate 8 being pressed on the front side, the middle row code plate spring 37 belonging to it. Since the intermediate lever 90-1 is set in additional, the additional code group release lever will be in the code group position, the slide 320 is pivoted back by the spring 382 , and 5 of the central row code plate 8 for sending out the additional code group release lever 326 is the desired code combination.

also swiveled back into the starting position. The upward return movement of the (Fig. 16 and 13). By the roller tension spring 298 induced central row code plate 8 also enables also the trigger release angle lever 290, a return movement of the Zusatzcodegruppenum- (Fig. 17) pivoted together with the trigger release roller 289 io switching trigger lever 320 and the Zusatzcodegruppenin starting position. During the trip release lever 326. This resets the trip gate lever 48 by one revolution of the trip release suppressor 356 by the front sheet code plate actuating shaft 54 (this spring 362 against the front surface of the rear apron resetting device is not part of the present 336 of the main code group trip release lever 324 and therefore not in the invention shown individually), 15 pressed.

the release suppressor angle lever 278, the _T _ _T _,. ,

by the release release lever 290 temporarily ^L Continued main code group operation

was swiveled into the release position by the

release suppressor spring 286 again in the operative position for characters of the main code group (FIG. 15)

the central row position is pivoted because in the opposite 20 key 4 with a central row character the

The lower main code group is posted in the same position for center row operation, pivoted

Leg of the switching angle lever 246 (Fig. 3 and the associated central row code plate 8 via the

17) by the ratchet lever 252 in the frontal position- by depressed main code group switchover-

is blocked so that a sufficient rotary bar 310 can trigger the main code group switchover

moment for the release suppressor angle lever 25 lever 316. The main code group switching release

278 is present. web 370 , however, pushes the main code group

switch pin 366 not down, so that the toggle

H. Switch from main code group to bridge 346 still in main code group position

Additional code group operation remains.

30 Since the trigger release suppressor 336 does not work with

When a key 4 with a center row font is in the middle row switching position (FIG. 15) of the device in engagement with the main code group incision 338 , the main code group release character of the additional code group is pivoted, lever 324 presses the release release angle lever 290 and the auxiliary code group switching cam 306 (FIG. 17). This leads to a rotation of the code of the pivoted center row code plate 8 via the plate adjusting shaft 54 and, for the respective transmission of additional code group switchover bar 314, the addition of the desired code combination for the subject code group switchover release lever 320 down. This fende center row character,
presses the additional code group triggering release lever when the pivoted-and suspended central 326 downward, which in turn row code plate for releasing the off is not far 40 code plate spring 37 is lowered into initial position zurückgegenug 8 through the associated center row solvent release angle lever 290 (Fig. 17), since the Zusatzcodegruppenein- provides is Also, the automatic code grouping 342 reverses with the trip release suppressor 256 toggle and engage the trip suppressor release device. The additional code group switchover back to the starting position, with the four release levers 320 being pushed further downwardly linked coupling 351 and the intermediate levers 90-1 until the additional code group release web 372 45 remains in its respective main code group position pushes the additional code group switch pin 368 downwards and the briefly pivoted release sub-switch the switchover bridge 346 in additional code group pusher angled lever 278 (FIG. 17) is brought back into its position together with the sector disk 360 for central row operative position,
sway.

The switchover bridge 346 tilts the spreading spring 162 50 7. Switchover from central row operation

around and lowers the end angle stop 140 of the reversing to top or bottom row operation

switching angle lever 138 inwards out of the way of _A . ,, _w ■ ",.,,. ,

_AD ui -firnj T-Ji I ₁ λλλ τ A. Switchover to top row operation

Outer stop 160 of the spring holder 144 out, ^fa

so that the switching shaft can rotate 180 °. If in Mittelreiheumschaltstellung (Fig. 3), the result, all intermediate lever is depressed into its inlet 55 Oberreiheumschalttaste 118 90-1, set code group positions (F i g. 6 and 7) placed, the Oberreiheumschalttastenhebel 119 in Ge and the additional code contact group 214 is' (F i g. 3) pivoted clockwise so that a KHnsends an additional code switching code combination. The release pin 388 of a downwardly directed vision-Immediately afterwards the additional code key 386 pivots the pawl lever 252 in the counterclockwise group release cams 293 'of the release cam direction. The pawl lever disk 292 (FIG. 17) releases the release cam lever 294 252 the thigh of the switching angle lever 246 in a counterclockwise direction, which in turn releases the release from the pawl opening. As a result, the releasing release angle lever 290 is pivoted together in the clockwise direction of the switching angle lever 246 and the switching web 264. As a result, the release release with the coupling elements through the switching lug 291 by means of the release release lug 284 presses the angle lever spring 256 and the switch web spring 262 in the release suppressor lug 282 , from which their respective starting positions are reset. Path of the release suppressor web 288 of the release gate lever 48 then leads to the return of all switching plates. Thus, the code 12 runs from the central row position (FIG. 9) into the

Upper or lower row position (FIG. 4) under the influence of the respective switch plate springs 116. The Pivoting the switching angle lever 246 in the counterclockwise direction (FIG. 17) also leads to Pivoting of the trigger suppressor angle lever 278 in the counterclockwise direction, in each case from the Middle row effective position in the upper or lower row position, where the release suppressor nose 282 no longer protrudes into the path of the release suppressor web 288 of the release link lever 48. It should be noted that the switching profile disk 244 (Fig. 3) with each stroke of the center row toggle button 232 revolves once completely, so that the return movement of the switching angle lever 246 is not disturbed by the formwork profile disk 244.

If the device was set for main code group operation immediately before, a stop causes it of the upper row shift key 118 (FIG. 3) a pivoting of the transmission lever 132 and the Switching pivot lever 134 counterclockwise without changing the position of the switching angle lever 138 changes. If the device was set for additional code group operation immediately before, a stop of the upper row switchover key 118 leads to a pivoting of the switchover angle lever 138 counterclockwise and consequently to a switchover of the intermediate levers, for example 90-1, in main code group position as well as to a switchover of the switchover bridge 346.

B. Switching to single row operation

When in the toggle position for middle-row characters, the sub-row shift key 214 (FIG. 3) is struck, the release shaft 220 pivots the release lever 226 in a clockwise direction and causes the pawl release pin 390 of the release lever 226 to pivot Ratchet lever 252 counterclockwise. This leads to the desired switching of the circuit boards 12 and the code plate rocker arm 14 in upper or lower row switching position. In the meantime it takes place if necessary, a switchover of the intermediate lever 90-1 and the switchover bridge 346 in additional code group position.

8. Variations

It does not require such a large number of character code contacts 106, which corresponds to the number of pulse digits in a code combination, you only need one, which is driven by the code contact lever 104 is closed and opened in chronological order. Furthermore, such a single Code contact for sending the code group switching code combinations and the space key code combination to be used.

Claims (3)

Patent claims: 1. Keyboard input device for generating code signals, where each key has several Shift key lever selectable characters are assigned and where to each key code transmitter are articulated to control a code switching stage, characterized by the combination following features: With a large number of buttons (4) with first row, second row and third-order characters, where the first-order characters a main code group, the second row characters of an additional code group and the third row characters partially of the Main and the additional code group are assigned, also by several code generators (6, 8) for each key (4), with the first row and second row coders (6) each belonging to the main or additional code group are assigned and the code generator (8) for mixed assignment of the third row characters Main and additional code selection elements (304, 306), further comprising first, second and third row toggle keys (118, 214, 232), when actuated the respective code transmitter (6, 8) with the relevant button levers (2) are engaged, further through one of the toggle keys and the code selection elements Appealing code group switchover indicator and trigger stage (138, 346, 152), each indicated by the first row switchover key (118) or when the third row shift key (232) is actuated by the main code group selection element (304) when the relevant key (4) is pressed into a main code release position (Fig. 8) and on the other hand, in each case by the second series shift key (214) or when the Third row shift key (232) by the additional code selection element (306) when the relevant Key (4) is switched to an additional code release position (F i g. 3), furthermore by a Character code contact switching stage (84, 86, 186), which depends on the position of the code group switching indicator and trigger stage connects the respective code transmitter with code contacts, through a code group contact switching stage (144, 156), which are switched when the position of the code group switchover indicator and trigger level changes is and then each sends out a code group signal that the affiliation of the following Specifies character code signals to the code group in question, further by a Coding trigger stage (44, 48, 50) with a trigger control stage (282, 288), with the first and the second series changeover position triggers immediately, and in the third series changeover position tripping only takes place when the code group switching display and tripping stage is brought into the position assigned to the key pressed. 2. Keyboard input device according to claim 1, characterized in that the trigger control stage a code release suppressor lever (278) activated by the third row toggle button (232) in the In the sense of a suppression of the coding triggering, a first one is switched to the code selection elements and the code group switchover display and trigger stage responsive release element (324, 326, 290), which in the third row switching position when a key is pressed, whose Characters of the code group set in the code group switchover display and trigger level listens, briefly releases the suppressor lever, a release suppressor (356), in the third row switchover position when a key is pressed, the characters of which are different from the one in the code group switchover indicator and trigger level set code group does not belong to the release element during a switching period of the Code group switchover and trigger level blocks, 109 529/265 and a further release member (292), each after a change in position the code group switchover indicator and trigger level releases the suppressor lever (278). 3. Keyboard input device according to claim 1 or 2, characterized by an arrangement the keys according to a conventional four-row keyboard, with the characters at least two different Alphabets, number systems, groups of punctuation marks and groups of symbols belong, through a first of the first order characters and some of the third row characters according to a common distribution at least one of the alphabets distributed on the keys character group, further by a second consisting of the second row characters and the remaining third row characters, distributed to the keys according to a usual distribution of the remaining alphabet Character group, and by a respective assignment of each character group to one Code group. For this purpose 4 sheets of drawings