DE1809831C - Switching device for writing and similar machines - Google Patents

Description

The invention does not relate to a switching device for the immediate setting of a type carrier

intended for typewriters and similar machines with one all.

Character-bearing type carrier and with the ■ The invention is based on the object of creating a key lever that can be connected to a power drive for Umsuhaltvorrichtung for writing · and similar Macodiert intermediate levers that machine via selector rockers 5 with a type carrier bearing all characters and a bolt actuating slide on a selector, which avoids the mentioned disadvantages direction for the type carrier setting effectively and allows it to be without the requirement of a. '' incremental machine cycle the ¹ type carrier un-

In typewriters, where the setting is indirectly based on characters in the toggle position or of the type carrier or for transmission converted xo to be set in the normal position. In doing so, the Erter goes Signals a coding of the key lever finding from the basic arrangement of the information required are for the ball-head typewriter described above, at Switching different solutions known, one of each key lever only a single one, the coding these devices, which is assigned in the USA patent specification carrying intermediate lever, the both 3 273 684 is described, has for each key lever .15 in normal hold as well as in the toggle position several code elements in the form of using code approaches becomes effective, this object is according to the invention different combinations provided sliders have been solved by the arrangement of an additional on, of which according to the actuated, to-lock actuating slide, which is about one of all switch button each one selected and effective intermediate levers assigned to double characters, will. This arrangement is for a rocker that can be connected as input and output and one of these via one Typewriters used in machines are intended, actuating pawl that is driven by a slide can be operated which is while maintaining the four-button row-on, whereby the actuating pawl is only activated when the Order a larger number of characters for input Shift-key is in their operative position. at and are available for printing. The Vordard typewriter is therefore the standard arrangement according to the invention with only two characters per 95 part of the simple structure of the well-known ball head key, in other words, those machines that typically combine a typewriter with the ability to to normal switching and toggling can be switched between characters in the normal position and must be able to change two code characters in the toggle position with this principle for each character, elements are assigned. without a special work cycle of the

The switching device 30 avoids this effort.

of the known ball-head typewriter, which is the advantage of the arrangement according to the invention in US Pat. The solution implemented there enables it to be increased considerably, and indeed in extra light it, only one coded men cases up to 100 ° / _{0 for} each key lever. Another point of view is to assign intermediate lever, which is for both 35, that a typewriter equipped with the inventive toggle sign of this key, namely the normal character and direction, applies to the sodas character in the toggle position. For this purpose called unmatched data transmission use is the surface of the ball head can be found in two. Because the codes used there, e.g. B. Split halves by adding one half to the characters in ASCII (American Standard Code for Information of Normal Position and the other half in the same 40 inu. .Ange). see a different 'C.ii'.hen binary code V;! "·'·; -r« 'ir'., 'TK ^ nultWu ^ cr, tn ^, u «.il» v! ..:. & u: ig for each character, but kern ftr> w ».dtni" s code of the shift key causes a rotation on the spherical head. Knows e ^; ne ernndungs by 180 °, so that now the corresponding elements controlled by the typewriter equipped typewriter are the same actuating magnets for the connection of the individual as with normal switching, only that the output 45 nen selector bar on, so you can access the incoming position of the Ball head deviates by 180 ° from that for control pulses all characters for setting and normal switching. can be printed without a separate

However, this type of switchover makes "switch" or "switch back" for each of these signals. Switching process has a separate work cycle that is necessary. When using the machine as a single machine required because switching the typewriter 50 for remote transmission of carrier in its switching position by switching on data are accordingly switched on the main shaft of the machine generates corresponding electrical signals via a special selector bolt Coupling takes place. In particular, if they are transferred and transferred very frequently.

circuit is thus used solely for the switching processes. In standard typewriters are in general

takes a great deal of time, which the performance of the machine 55 assigns two characters to each key; however, gives way

significantly impaired. the number of characters in the toggle position from

In another known switching device that of the characters in the normal position from, infür Teleprinters, typewriters, etc. (British double characters assigned to a number of keys Patent Specification 1 019 866) is an additional group- are while having a different part of the buttons Selector bar provided, which are controlled by means of a toggle 60 individual characters, so the button can is locked or is released and each additional bolt actuating slide also directly Change of one of the selector rockers assigned to a specific key so that it can be actuated Code combination caused by being one, with this selected selector arm tuned out Signal assigned to channel suppressed or finally released temporarily from individual characters assigned will. With this switching device 65 lever is switched.

it is possible without an additional machine structure

explained for each character on switching or on normal drawings in an exemplary embodiment.

■ "UnItI _1n ,, · ,,! Switch. However, it is for the control It shows

10

F i g. 1 a sohaubildlioho representation of the dialing device a typewriter with a spherical type carrier,

F i g. Figure 2 is a perspective view of the type setting device and the switching device of a typewriter of the type shown in FIGS

F i g. 3 a development of the surface of the spherical Type carrier to represent the distribution of the characters in Ubpjvinimmen with the switching device according to F i g, 2.

According to F ί g. 1 has the typewriter shown a spherical type head Π, on the circumference of which the characters in rows and columns are arranged and which is mounted on a shaft 12 on which a pulley 13 is located at the lower end is located. One end of a belt 14 is attached to the pulley 13 and over another pulley 15 led to an anchoring in the frame of the machine at point 17. A (not shown) The spiral spring is constantly acting on the pulley 13 so that the belt 14 is constantly tensioned. As Shown in Fig. 2, the type head 11 is with the Pulley 13 arranged on a bearing 16, which is used to print the set character a cam drive 19 to the platen 18 is pivotable. The pulley 15 is on a double lever 20 stored, at the opposite end of a link 21 is articulated. Dbser is on his other End connected to a lever 22, which to the later explained in detail selector heard.

From the keyboard of the typewriter is shown in FIG. 1 only a key button 24 and the associated key lever 26 are shown. A shaft 30 is continuously driven by a motor 28 via a toothed belt 32 and a corresponding belt pulley 31. iwi under the control of a coupling bolt 36 standing coupling 34, a shaft 33 is temporarily coupled to the shaft 30; the shaft 33 serves to drive the selection for characters to be printed out, as will be explained in more detail below.

To print a character, the corresponding key button 24 is pressed, whereby the associated Key lever 26 around a rod 38 on which it is mounted on one side, against the force of a (not shown) Spring is pivoted. The associated intermediate lever 42 is actuated via a pawl 40. the Intermediate lever 42 is both pivotable and longitudinally displaceable on a bearing rod 44 on the Stored at the front of the machine. The longitudinal displacement of the intermediate lever 42 "is through the Limited length of the Lugerstange 44 receiving elongated hole, while the intermediate lever 42 in the the rest is guided in a (not shown) guide chimney. A spring 46 normally holds it in place its starting position by a tensile force acting upwards and to the rear of the machine.

Below the intermediate lever 42 a number of selector rockers 47 are arranged transversely, from dinen in Fig. 1 only one is shown and the code approaches located on the underside of the intermediate lever 42 48 can be actuated. Another approach 49 on a part of the intermediate lever 42 is on a Swing arm 51 effective. When the intermediate lever 42 is turned on individually and to the front te of the machine Kin are moved, press them accordingly Combination of the two intermediate levers 42 located code approaches 4Ba to 48 / and 49 a Part of the total of seven existing rockers 47 and 51, whereby the corresponding Zeicnsn on the Type head 11 is set for printing. The following table shows at which positions the individual intermediate levers 42 are provided with code extensions 48 and 49, respectively

Tests No. normal
circuit Switching 48a λ Zwi ^ henhebii-Cotieap ¹ . j: ν
Φ?. · I 4SJ ■ 48k X X 48 / φ> 0 1 X X X X X 1 Q X X 2 A. X X X X 3 2 X X X X 4th Z X X X X X 5 W. X X 6th S. X X X X X 7th 3 # , X X X X X 8th X X X X 9 E. X X X 10 D. X X X X 11th 4th X X X 12th C. X X X X X X 13th R. X X X X 14th F. X X X X 15th 5 % X X X X 16 V X X X X 17th T X 18th G X X X X X 19th 6th & X X X X 23 B. X X X X X 21 Y X 22nd H X X X X 23 7th / X χ X 2 \ N X X γ 25th U

I 809 831

(Continuation of the table)

Button no. normal
circuit Switching 48a 486 Between
48c lever cod
48 d approaches
4Se 48 / 49 26th J X X X X X 27 8th ( X X X 28 M. ] X X 29 I. X X X 30th K [ X X X X 31 9 ) X X 32 1 <; X X 33 O X X 34 L. X X X 35 0 X X X 36 > X ■ X X 37 P. X X X X 38 J X X X 39 - = X 40 j 7th X X 41 X X X X X 42 * * X X X X 43 - X X X

An intermediate lever 42 is actuated by the associated button lever 26 via the pawl 40 furthermore the connection of a clutch release arm 50, which in turn has a clutch release lever 52 actuated, which is mounted in the frame part 54 and connected to the coupling bolt 36. at each time a key lever 26 is actuated, the clutch 34 is switched on to initiate a printing cycle.

When a half revolution of the drive shaft 33 is initiated as a result, the belt 35 transmits this half-turn also on the vane shaft 55 (Fig. 1), whereby the actuated intermediate lever 42 is shifted to the front of the machine and the selected selector arms 47 and possibly the rocker 51 is actuated. In the course of the further half rotation of the drive shaft 33, the pivots Cam disk 29 on pressure shaft 39 has a selector rocker arm 69 downwards, which in turn all of the selector bolts 68 that have not been set via the selector arms 47 pulls down. While the type head 11 is set in its pressure position as a result, it has an immediate effect then the cam drive 19 on the pressure shaft 39 the pivoting movement of the bearing 16 to print the set character.

According to FIG. 2, the latch actuating slides 56 and 57 are actuated by the selector arms 47 and 47 '. A total of six latch actuation shifters 56, 57 are provided, which are combined in such a way that they represent a coded signal, corresponding to one of sixteen rotation settings (-8 to 17) and four inclination settings (0 to - \ 3). The latch actuating slides 56 and 57 are mounted on a rod (not shown) such that they can be longitudinally displaced and pivoted, similar to the intermediate hooks 42. A number of slots 59 and 60 are provided in a guide comb 58 for the parallel guidance of the actuating layers 56 and 57. Jc: inc leder61 holds the assigned locking mechanism in its rest position to the rear of the Muschinc. During each pressure cycle, the WähNchwingc47 actuates the locking lever to the front of the machine via an actuator / 63. A link 66 is articulated on the opposite side, the other end of which is in turn hooked into one of a number of selector bars 68. A selector bolt

Swing 69, which when the clutch 34 becomes effective via the drive shaft 33, the spur gear 37 and the cam disk 29 is moved, pulls each of those selector bolts 68 down that were previously when selecting characters not via the assigned

Latch actuation slide 56 or 57 and the corresponding link 66 out of the way of the.Wählriegelschwinge 69 were swung out. Depending on the selection of the selector bar that will become effective 68 the type head 11 is set

to print the entered character.

As shown in FIGS. 1 and 2, there is a code approach on each of those intermediate levers 42, associated with the two-character key buttons 24; it is in each case

by one character in the normal position and one character in the toggle position, each simplified in the following referred to as an "emergency sign" or "shift sign". These code approaches activate a swing: 51, which in turn relate to an approach70 (FIG. 2) to a

Slide 72 is effective, the immediately adjacent / i one of the locking actuation shifters 56 or 57 is arranged, as in FIG. 2 indicated by the arrow Near the front end of the slider 72 is medium a? Pin 73 an actuating pawl 74 mounted, you

SS by means of a spring 75 for clockwise rotation is pulled and its final position by one of de Actuating pawl 74 angled approach 76 limit / is. At the opposite end of the actuation * pawl 74 there is a nose 78 and an Abwin

kelung 80, the latter being connected in this way. that si

in the inoperative position of the operating pawl 7

with regard to an edge 82 on the latch actuation '

slide 57 is ineffective.

Immediately below the slide 72 is egg

Umschalthebcl 84 at an angle 85 on the frame the typewriter mounted rotatably. The Umschnl

na I « ^WC , ^{lsl at 8cinem cinen Lndc e} '» ^c connection area 86 on. during t.cm aau ... _ä unj _e zuraufnahn

Claims (3)

1 ΟΠΟ Q 7 1 Γ 7 ^ 8 a rocker 90 by means of a slot 88 fork 48c and 48 /. As soon as the wing shaft 55 passes the intermediate is shaped. The rocker 90 has been slid into the frame lever 42 toward the front of the machine plates 91 of the machine and is under the actuation of these code approaches their assigned vibration Effect of a spring 92, which it genes clockwise. The additional code approach 49 represents a toggle seeks to pan. In a corresponding way, the 5 characters are shown and actuated in a corresponding manner Swing arm 90 also with the toggle key lever 94 swing arm 51. connected, on which the shift key 95 is located. From Fig. 2 shows that when the rocker 51 When the toggle button 95 is actuated, the actuated one moves the slider 72 Umschalttastenhebcl 94 a pivoting movement towards the front of the machine via the projection 70, which moves counterclockwise and causes the actuating pawl 74 to be actuated via the bend 80 of the actuating pawl 74 without being turned 84 the stop surface86 on the kung auf? the edge 82 of the bolt actuating slide nose 78 of the actuating pawl 74 becomes effective, bers57 remains. With the input of the keyed in whereby this upwards and counter-clockwise sign are only the selector rocker is swiveled meaningfully. If the actuation is triggered, and when the selector pawl becomes active, the latch rocker 69 comes to rest the keyed-in sign "3" angled 80 on the edge 82 of the latch actuation for setting and then for imprinting the slide 57 . If a button is now selected by pressing a certain normal character, which is assigned to a common character for normal switching and actuation of any key whose assigned switching is assigned, then the intermediate lever via the code attachment 48o is immediately the swing arm 51 when the assigned 20 is switched on to the selector swing arm 47 is effective takes place in the th intermediate lever 42 by its code attachment 49 in the same way as before using the code-actuated. as soon as the wing shaft 55 executes its half-turn set 48b, 48c and 48 / provided intermediate lever. The rocker 51 pushes the slide 72 as described. towards the front of the machine. which, in turn, is used to select and print a shift by means of the bend 80, the bolt actuation symbol, for example the symbol “#”, becomes the slide 57 takes with it. This turns the selector bar 68 'Shift key 95 and then the fast »3 it« pulled away from the rocker arm 69, thereby actuating another. This does the same thing The res character is set as if the toggle is triggered as described above, but with the button 95 would not have been pressed. Difference that due to the setting of the actuation From this explanation in conjunction with FIG. 2 30 transmission pawl 74 in its operative position by the Umist thus it can be seen that the bolt actuation slide switch key lever 94 is now over the angled portion 80 forth 57 is only actuated via the rocker 51 if and the edge 82 of the latch actuating slide 57 the Shift key 95 was pressed. Otherwise it is adjusted, so that on the handlebar 66 a from only the selector arm 47 "is actuated and the normal character deviating from the changeover character mal / eichen is placed on the type head 11 for setting 35, in the example the "#" character on the brought. Type head 11. More normal characters than shift characters are required for the embodiment described here provided, an independent actuation device is the imprint of a toggle symbol which is the same possibility for the bolt actuation slide 57 to operate the bolt in time or in succession worth seeing. As from the previous table in Shift 40 Shift 95 and the corresponding keys bond with I 1 g. 1, there are some intermediate buttons 24 for the selected toggle character setpoint lever 42 with code extensions 48 «for operating the, as is usual with most typewriters, the Selector arm 47 is provided. This is designed to be lockable directly to the switching position the locking mechanism 57 effective. can for example be below the toggle keys According to Fig. 3, the characters are provided on the circumference 45 hebeis 94 a bolt of the area of the type head 11 in eight groups of eight rockers 90 in their lower position holds until the Distribute characters. The four characters in the respective desired number of consecutive transfer leftcn columns of each group each require the character to be keyed in. Another Mighty- Connection of the common selector signal 68. The wedge consists of the slide 72 with a spring those characters which are to be identified as shift characters, which either the Actuating Uno pawl 74 are drawn, act on the selector bar 68 'via the or the switch lever 84 for the desired duration Switching device. as previously described, while holding on to the Wii ksJstellung the remaining of these characters over the selector arm 47 Fs can also be desired the number of a / u act on the corresponding dial. to increase the number of characters or the number of In the following, the selection of a normal / calibrated 55 key buttons will be reduced by using a correspondingly larger number of toggle positions. B. sees and accordingly the number of belts "ine" .1 ". If the key button" 3-44 <· is pressed. Operating slide increased,
and the associated key lever 26 pivots over the pawl 40 the corresponding intermediate lever 42 60 claims:
clockwise so that its right Fndc 4ί in 1.! ^ switching device for writing and punishing path of the luge shaft 55 come. In doing so, the borrowed machine is equipped with a coupling-less swinging swing that carries all symbols through the wiping type. operated by means of the button levers 42 and causes the coded drive shaft, which can be switched on via the coupling power drive, to lever the drive shaft for a pressure cycle 65, the yellow unpeeled via WühfXingen and R * ; will. tiltigu "g, slide on a dialing device for Since the mechanical coding for the keyed-in the typecentricinsicllun "are effective.)" / oak ..1. is represented by the (Odciinsfltrc 48 / -. V _e «- 'ri ·, f η ct du Λ h riS?, ™ t ?! Bolt actuation slide (f> 7), which can be accessed via one of all intermediate levers (42), which are assigned double characters, connectable rocker (51) and one can be actuated by this via a slide (72) driven actuating pawl (74), wherein the actuating pawl (74) is only in its operative position when the toggle key lever (94) is actuated. 2. Switching device according to claim 1, characterized in that the shift keys 10 lever (94) via a rocker arm (90) and a switch lever (84) on the actuating pawl (74) is controlling effective. 3. Switching device according to claim 1, characterized in that the additional locking actuator slide (57) can be actuated directly by one of the selector rockers (47), which exclusively is switched on by intermediate levers (42) assigned to individual characters. 1 sheet of drawings