DE2250269B1 - CONTROL DEVICE FOR SUPPRESSING THE TYPE PRESSURE IN POWER-DRIVEN KEY AND MEMORY-CONTROLLED TYPEWRITERS - Google Patents

Description

Force of the spring 9 held against a stop 11 The mode of operation of the subject invention is

will. The intermediate levers 5 have the following coded approaches:

13 on which during the longitudinal movement of the intermediate During normal writing move levers 5 coding rockers 15 pivot. This actuate the triggered intermediate lever 5 through the Ausspa coding rocker 15 contacts 17 a, 17 b, 5 stanchions 66 of the control rail 55, ie the control 17 c, 17 d, 17 e, which now control pulses via rail 55 is not pivoted and the Selection lead wires 19 to an adjustment mechanism of a magnet 29 is not energized. In this case, for each spherical type carrier 23, eccentric drive 50 with the drive shaft 47 is always given on a working cycle of the first drive device 34 of the movable carriage 21 arranged along the platen. Coupled, since the control member 49 is constantly in action. A part of the adjustment mechanism is shown in FIG. 2 area of the first drive device 34 lies. The shown schematically. Much is actually just e switch 17 needs not always operated and that the adjustment of the type carrier to be not excite 23 via initial selection of the magnet 29, thereby selectively magnets 25, 26, 27, the switching movement are conserved over these parts. Only if the intermediate selection magnet 28 and the impression levers 67, 68 of the secondary functions such as switching, movement can be controlled via a selection magnet 29. Empty step, step back, etc. are operated, the selection magnets 25, 26, 27, 28 bring the control rail 55 pivoted, since these intermediate levers 67, 68 do not have any recess in the members 30, 31, 32, 33 in the effective area of a first range of these intermediate levers 67, 68 -Drive device 34, which has an eccentric gene, but rather lugs 69, 70. When driving 35 is drivable. The control rail 55 is pivoted via a control device ao via its arm

36, the eccentric drive 35 is a drive shaft 65 of the switch 17 is closed e, ie the selection

37 can be coupled, which magnet 29 is energized via a bevel gear pair and pulls the control member 49 38/39 with a revolving main shaft 40 in the active area of the first drive device digem intervention. The control members 30, 31, 32, 33 34. The eccentric drive 50 is not with the shaft couple the eccentric drives 41, 42, 43, 44 with a 25 47 coupled and the impression movement does not occur, also via a pair of bevel gears 45, 46 of the same as in the case of the secondary functions mentioned above Main shaft 40 driven shaft 47. The eccentric is not desired.

drives 41, 42, 43 provide a differential lever- If now the right edge are excluded

gear 48 the type carrier 23 a. The switchover is to be carried out, so the non-pressure key lever 56 is in the

of the type carrier 23 is pivoted via the eccentric 30 latching position 63/64. Here is about

44. the tension member 58 also the pivot lever 59

The selection magnet 29 controls the control member 49, which pivots the control rail via its arm 61

which can be coupled to the drive device 34 55 to the left against the force of the spring 60

and pushes an eccentric drive 50 with the drive shaft. By shifting the control rail

47 couples. The switch 53 is opened via a toggle system 51, i.e. the switch 53 is opened. H. the circuit

carriage 52 for the impression movement back and forth 54 to the switches 17 a ... 17 d and the corresponding

emotional. corresponding selection magnet is interrupted. One

In Fig. 3 is a circuit diagram for the selection, setting or switching movement is not shown magnets 25, 26, 27. 28 and 29, which is more possible. In this position the control rail can be controlled via switches 17 a ... 17 e . In the 40 55 all intermediate levers 5, 67, 68 abut against the circuit 54 to the selection magnets 25 ... 29 is lugs 71, 69, 70 of the control rail 55. The Steuerein additional switch 53 is arranged, which is pivoted at the rail 55 for all functions , the axial displacement of a control bar 55 operable whereby the contact 17 closed and e is OFF (F i g. 1 and 4). The displacement of this control selection magnet 29 is excited. In the non-pressure rail 55 against the force of the spring 60, the non-pressure key lever 45 is positioned in the area of the keyboard printing movement of the type carrier 23. The eccentric drives 41, angle levers 59 are connected to a rod-pivotable and via a tension member 58 with extensive wear and tear. The angle lever 59, 42, 43, 44, 50 of the differential lever system 48 is thus protected with an arm 61 constantly in contact with the 50. Since the control rail 55 for the spring-loaded control rail 55. In the normal position, suppression of the imprint while running, the non-pressure button lever 56 is on one of the secondary functions such as switching, space, stroke 62, while this is in the non-pressure position Step back, etc. is already present anyway, the present invention is made possible with its bolt 63 by a locking spring 64 and is also included. In Fig. 5, the side view of the 55 borrowed little effort is shown under extensive control rail 55, the dash-dotted use of existing machine parts and drive, the shifted position is indicated. The control elements also have the suppression of the adjusting tab 55 incidentally acting through an arm 65 with the movement of the type carrier 23 in the non-print switch 17 e together. Position.

1 sheet of drawings

COPY

Claims (3)

I 2 claims: serve to determine the line length with normal word spacing before a fair copy is produced. 1. Control device for suppressing the For the production of a document with an excluded type imprint in the case of power-driven key-operated lines, a second step is then used and memory controllable typewriters, with 5 the same text re-entered, but with Abone only for printing against the printing of the characters. With appropriate corrections drawing carrier movable type carrier, with the word spacing can here be a uniform a number corresponding to the line length selected in each case, that is, an excluded right-hand line Types or functions actuated elec- tron can be achieved. tromagneten up to the setting of the type carrier OK To achieve the above-mentioned procedure on the selected type or its imprint or by the German Auslegeschrift 1611447 an Non-imprint movement, and further with an order with only a single, for imprint against special non-press button for the non-movable type carrier Printing of one type and known with non-printing radio, none at all with the non-printing setting Function keys for non-printing functions, such as idle 15 impact energy. The disadvantage here is step, step back, etc., marked that the type carrier still makes all setting movements through the excitation of the electromagnets (25 up to and including the switchover in preparation 29) interrupting electrical switches (17, 53) that carry out the imprint of the typed character, their actuation of the non-print button (56) It only stops the print movement, which or one of the non-pressure function keys 20 by moving the cam disc to one is controllable. Non-pressure cam ring section through the non- 2. Control device according to claim 1, is achieved with a push button. which the impression movement of the type carrier. The object of our invention is to provide a can be suppressed, characterized in that the device for a typewriter of the aforementioned two switches (17 e, 53) are provided, 25 th type, but with control electromagnets to create the one (17 e) in the circuit to the electric, In the non-pressure position of the magnets (29) for the print movement and the non-pressure button, in addition to the suppression of the other (53) in the circuit for the electromagnetic pressure movement, the setting movements of the th (25, 26, 27 , 28) for the adjustment movement of the type carrier are omitted.
Type carrier (23) are arranged. This object is achieved according to the invention by 3. Control device according to claim 2 with co- the excitation of the electromagnets interrupting dierschwingen, which by pressing a button electrical switch, the actuation of the non-releasable and power-driven intermediate lever pressure button or one of the non-pressure functions to actuate the switch to the electromagnet buttons can be controlled. In particular, two th switches are provided for the setting movement of the type carrier 35, one of which can be swiveled in current, characterized in that there is another circuit to the electromagnet for the impression movement, with attachments (69, 70, 71) and output and the other control rail (55) provided in the circuit to the electrical cutouts (66) interacts with magnets for the adjustment movement of the type carrier, the intermediate levers (5, 67, 68). This makes it possible to use the intermediate levers (5, 67, 68) to ensure that the impression movement is also omitted, when the type carrier can pivot a setting by 180 °, ie the first switch (17 e) can be pivoted and executes through the switching movement. Another advantage of the arranged in the area of the keypad is that the switching frequency of the electro-non-push button lever (56) for actuating the magnet is reduced to a minimum. The elec- tromagnet associated with the adjustment movement of the type carrier for the impression movement is only excited when the second switch (53) is axially displaceable. if the imprint is not to be taken. The electromagnets for the adjustment movement of the type carrier are only used to set the type carrier excited. The parts 50 subject to wear are actuated as little as possible. Die-Die The invention relates to a control device for this has a very beneficial effect on the service life Suppression of the type imprint in the case of power transmission of the entire machine. NEN key and memory controllable typewriter- An embodiment of the invention is after- nen, with a single to be imprinted against the standing described on the basis of the figures. It shows
Record carrier movable type carrier, with 55 F i g. 1 a section through the keypad,
a number of corresponding to the respectively selected Fig. 2 a schematic representation for an electrical Types or functions operated electromagnets tromagnetically controllable setting gear for one until the type carrier is set to the selected type carrier, Type or its imprint or non-imprint Fig. 3 a circuit arrangement for the electrical movement, and also with a special non-magnets, print key for the non-printing of a type and with Fig. 4 a perspective detail from Fig. 1, Non-pressure function keys for non-pressure radio - especially the control rail, and
functions, such as blank step, step back, etc. FIG. 5 shows a side view of the control rail Typewriters are known in which Fig. 1. through a special setting, the imprint of the 65 For a character selection, when a entered characters is interrupted and only the key lever 1 according to FIG. 1 each over one Ausden Keyed-in characters associated shift lever 3 released an intermediate lever 5, which in steps are triggered. Such devices of the starting position with a nose 7 through the