JPS5838185A - Motor-driven japanese character typewriter - Google Patents

Abstract

PURPOSE:To fully automatize the operation from letter retrieval work of a type box to the completion of printing only by input command of a key board as well as permit the realization of various additional functions by using a system in which the movement of the type box, the selection of types, and the movement of types and platen are all driven by motors. CONSTITUTION:When printing command from a key board 22 is given to a type box controller 28, a drive signal is supplied from the controller 28 to a motor driver 30, the driving of a X-motor 32 and a Y-motor 34 for a type box 10 is controller, and desired types of the type box 10 are positioned at a printing place 0. Whereupon, on the basis of signals from a printing controller 72, desired types are picked up from the type box 10 by a printer 74 and then struck onto a recording paper 12 attached to the platen 14 for printing. The platen 14 is automatically and controllably moved by a platen controller 76 by which platen drive mechanism 20 is extracted on the basis of printing command from the key board 22 and X-motor 80 and Y-motor 82 are driven through a driver 78.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an electric Japanese typewriter, and particularly to a low-cost electric Japanese typewriter in which the pitch feed of the platen can be arbitrarily specified.

In recent years, there has been a demand to electrify Japanese text writers in order to improve office processing efficiency and promote standardization, but in conventional devices, only the printing block that prints type on recording paper by impact is electrified. Therefore, it is not possible to motorize the movement of the type box and platen necessary for printing, and as a result, most of the basic movements necessary for printing, such as type selection, must be performed by the typist's hands. Therefore, it was difficult to perform an efficient printing operation. Furthermore, with this type of font writer, it is almost impossible to implement various additional functions, including the editing functions that are available in word processors, and printing operations are complicated, and Japanese font font writers are not suitable for general office work. This prevented easy use by employees.

However, on the other hand, word processors with the various additional functions mentioned above are expensive, and because the printing section is usually formed from a printer such as a Pt matrix printer, it is more expensive than the type in a normal Japanese typewriter. There is a problem in that the quality is low, and in particular, when printing complicated Chinese characters, it becomes difficult to read them. For this reason, there has been a demand for a low-cost electric Japanese typewriter that is capable of high-quality printing and that is equipped with various additional functions.

The present invention has been made in view of the above-mentioned conventional problems, and its purpose is to be able to perform the printing operation fully automatically from the Dongaku type box to the completion of printing simply by inputting commands using the keyboard r, An object of the present invention is to provide an improved electric Japanese typewriter that can realize various additional functions by combining with a computer or the like.

In order to achieve the above object, the present invention provides a type box having a predetermined type arrangement, a platen to which recording paper is mounted, a keymate for inputting a desired printing command, and a movement control of the type box based on the printing command. an electric type shaft drive mechanism that positions the desired type at the print position; an electric printing mechanism that picks up the desired type from the type box and prints it on recording paper based on the print command; and a control to move the platen by a desired amount based on the print command. However, the minimum pitch feed amount of the platen is set to an integer fraction of the standard pitch feed amount, and includes an electric platen drive mechanism capable of fine pitch feed and a memory unit that stores printing commands to control the pitch feed of the platen. Can be specified arbitrarily.

Preferred embodiments of the present invention will be described below based on the drawings.

In FIG. 91, the tie writer has a type box in which a plurality of type characters that can be used in a normal manual type writer are arranged in a desired order and can be taken out freely, and a recording paper 12 is attached near the type box 10. A platen 14 is provided.

In the present invention, there is provided an electric type shaft drive mechanism 16 that controls the movement of the type box 10 to position a desired type at printing position 0, and a motorized type shaft drive mechanism 16 that controls the movement of the type box 10 to position a desired type at printing position O, and picks up and records the desired type positioned at printing position O from the type box 10. Each of the mechanisms 16.1 includes an electric printing mechanism 1B that prints on paper 12, and an electric platen drive mechanism 20 that controls the movement of the platen 14 by a desired amount.
A print command for controlling 8 and 20 is input to the keyboard 22.

The keyboard r22 includes a plurality of type keys and operation keys,
Print commands input in a desired order are supplied from the signal distributor 24 to each of the mechanisms 16, 18, and 20, and these print commands are also supplied to the memory unit 26, which stores all input print commands in the memory unit. It can be stored at 26.

The memory section 26 can also be formed from a RAM,
It can also be formed from an external storage device such as a floppy disk.

The electric type shaft drive mechanism 16 has a type box controller 28 that receives a print command from the keyboard 22, extracts a drive command related to the type box from the print command, supplies a drive signal to the motor Drino ζ 30, Motor Drinos 3
X motor 32 and Y motor 3 for type box 10 by 0
4 can be driven and controlled to move the type box 10 to a desired position. Each of the motors 32, 34 can be formed from a step motor or a DC motor.

Hereinafter, the main parts of the mechanical structure of the electric type shaft drive mechanism 16 described above will be explained based on FIGS. 2.3 and 4.

In FIG. 2, a support frame 40 is provided on a support frame guide portion 36 fixed to a tie lighter main body (not shown) via a group of bearings 38 so as to be slidable in the Y direction in the figure. The above-mentioned type box 10 is supported on the support frame 40 via a group of bearings 42 so as to be slidable in the X direction in the figure.

Further, in order to drive the type box 10 and the support frame 40 in each axial direction by the aforementioned motors 32 and 34, the following drive mechanism is provided.

That is, in order to drive the type box 10 in the X-axis direction, a pair of pulleys 46 and 48 are rotatably supported on the mounting plate 44, and an X-axis drive belt 50 is attached to these pulleys 46 and 48.
is stretched, and the X-axis drive belt 50 is driven in the X-axis direction in accordance with the drive of the X-step belt 32.

In order to transmit the drive of the X-axis drive belt 50 to the type box 10, the X-axis drive belt 50 and the type box 10 are connected at a connecting portion 52. The connecting portion 52 includes a lower carrier 54 fixed to the X-axis drive belt 50 and an upper carrier 60 rotatably provided on a shaft 58 supported by a bearing 56 of the type box 10. The lower carrier 54 is provided with a protrusion 54a, and the upper carrier 60 is provided with a corresponding recess 60a, so that both carriers 54 and 60 can be easily attached and detached as shown in FIG.

On the other hand, in order to drive the support frame 40 in the Y-axis direction, a pair of pulleys 64 and 66 are rotatably supported on the mounting plate 62, and an X-axis drive belt 68 is stretched around these pulleys 64 and 66. Both ends 68a and 68b of the X-axis drive belt 68 are attached to the end surface of the support frame 40 with attachment screws 70.

As described above, the characteristic feature of this embodiment is that the type box 1 is provided on the typewriter body so as to be able to slide back and forth in one direction.
0 reciprocally and slidably in a direction perpendicular to the one direction, and drive motors 32 and 34 that drive the type box 10 and the support frame 40 in each axial direction via a drive mechanism, The type box 10 is detachably connected to a drive mechanism for driving the type box 10 only by a connecting portion 52.

The electric type shaft drive mechanism 16 of this embodiment has the above-mentioned configuration, and its operation will be explained below.

By the type pickup command from the type box controller 28,
A desired movement pulse is supplied from the motor P rhinos 30 to each motor 32, 34, and the type box 10 and support frame 40 are driven in each axis direction, so that a desired type is positioned facing printing position 0. In this way, the type box 10 and the support frame 40 are each driven in each axial direction by an independent feeding mechanism, so they are less likely to interfere with each other's movements in each axial direction (
, the drive is performed smoothly.

Then, with the desired type facing the printing position O, the printing mechanism 18 extracts the desired type from the type box 10 in response to a print command from the type box controller 28, and hits the type on the recording paper 12 of the platen 14. The desired printing effect can be obtained.

Next, when taking out the installed type box 10 and installing another type box 10 with a different type arrangement, the upper carrier 60 is rotated as shown by the two-dot chain line in FIG. 54 and pull out the type box 10 as shown in FIG. Then, a new type box 10 is installed by performing the reverse operation. In this way, since the X-axis drive belt 50 and the type box 10 are removably connected only by the connecting portion 52, the type box 10 can be easily replaced.

As explained above, according to this embodiment, the type box and the support frame are driven in each axial direction by independent mechanisms, so there is little interference in movement in each axial direction, and smooth driving is achieved. be able to.

Furthermore, since the type box is removably connected to the drive mechanism that drives the type box only at the connecting portion, the type box can be easily replaced.

Further, the drive mechanism for driving the type box and the support frame does not require parts such as clutches and levers, so the mechanism is simple and has the advantage that the weight of the movable parts is small.

Next, the electric Japanese typewriter according to the present invention is provided with an electric printing mechanism 18 for picking up type at a printing position and printing it on the recording paper 12, and the electric printing mechanism 18 is connected to a printing controller 72 and a printing device. 74, the print command from the keyboard 22 is extracted and supplied by the print controller 72 as a print command signal to the printing device 74, and with the desired type facing printing position 0, the printing device 74 selects the desired type from the type box 10 as well. A desired printing effect can be obtained by picking up the printed characters and hitting the recording paper 12 mounted on the platen 14 with the printed characters.

The present invention is further characterized in that the platen 14 can be automatically controlled to move by a desired amount;
The electric platen drive mechanism 20 includes a platen controller 76 that extracts a platen drive command from a print command from the keyboard 22, and the output of the platen controller 76 is an
is supplied to the motor 80 and the X motor 82, and the platen 14
The desired pitch and desired line movement can be controlled.

FIG. 5 shows the main parts of a platen drive mechanism suitable for the present invention, and pitch feeding (
A platen support frame 84 is pivotally supported to be able to reciprocate in the X) direction, and the platen 14 is supported on the platen support frame 84
is rotatably supported in the line feed (Y) direction.

A feed rack 86 is fixed to the lower side of the platen support frame 84 along the X direction, and the rack 86 is meshed with a binion 88 fixed to an X motor 80. The platen support frame 84 is driven to be fed at a desired pitch via the rack 86.

A pulley 92 is fixed to a platen shaft 90 of the platen 14, and an X motor 82 is supported and fixed to a platen support frame 84.
A drive belt 96 is stretched between the drive belt 96 and a pulley 94 fixed to the X motor 82, and the platen 14 can be fed a desired amount of paper in the row direction depending on the rotation amount of the X motor 82. In the present invention, the X motor 820 rotations Depending on the direction, it is possible to correctly feed the platen 14 in either forward or reverse directions. Note that there is a feed knob 9 at one end of the platen shaft 90.
8 is fixed, and it is possible to manually advance the platen 14 by a desired amount separately from the automatic advance by the Y motor 82.

FIG. 6 shows another embodiment of the platen drive mechanism according to the present invention, and the same members as those in FIG. 5 are given the same reference numerals and omitted.

In FIG. 6, the pitch of the platen support frame 84 is controlled by the main shaft pulley 100 and idler pulley 100 of the X motor 80.
In the figure, the drive belt 104 is fixed to the platen support frame 84. In addition, in FIG. 6, the X motor 82
is fixed to the typewriter board, and its driving force is
Platen support from pulley 94 via belt 106 $8
The rotation of the square shaft 108 is transmitted via a slide pulley 110 to the square shaft 108 pivotally supported on the platen 1 through the pulley 112 and belt 114.
The signal is transmitted to a pulley 92 fixed to 4.

As described above, in the present invention, the platen 14 on which the recording paper 12 is mounted can be driven by a desired amount by the X and Y motors consisting of two step motors or DC motors, and the platen 14 can be moved to a desired position. Movement can be controlled arbitrarily. Therefore, according to the present invention, various tabulations or layouts can be automatically performed by arbitrarily combining the pitch feed and line feed of the recording paper 12, which is extremely difficult to do with conventional Japanese typewriters or word processors. The present invention has the advantage that the various functions previously described can be performed automatically only by input using the key P22.

Incidentally, it is also possible to use the X and Y motors as feed renoids.

The present invention will be explained in more detail below with reference to FIG.

The platen controller 76 is provided with a fixed pitch setter 116 and a variable pitch setter 118 for determining the pitch feed amount of the platen 14, and an arbitrary pitch feed amount can be set as necessary. During normal printing, platen 14
The pitch feed amount is a constant standard pitch, and when the print key is pressed to perform the printing operation, the fixed pitch setting device 11
Is the constant standard pitch feed signal set by 6 X Drino? 78X and the desired amount of standard pitch feed is
This is done by a motor 80. That is, a print command from the print key is supplied to the fixed pitch setter 116 via the AND gate 120, and a desired number of pulses are sent to the X dry nozzles 78.
During normal printing, the AND gate 120 is in the gate-on state, and when a special pitch feed amount is required, the desired pitch feed amount can be changed from the pitch setting key of the Keysade 22. At this time, the variable pitch setter 1 is supplied to the pitch setter 118.
From 1B, the number of nozzles corresponding to the set pitch feed amount is supplied to the xY line/78X, and at this time, the gate 120 is turned off to stop the pitch feed action by the print key. In the present invention, the variable pitch setting device 118 is capable of setting fine pitches finer than the normal fixed pitch, and can perform various editing operations such as tabulation or printing at equal intervals within a fixed interval. .

That is, when the desired pitch feed amount is output from the pitch setting key, this signal sets the flip-flop 119, and its Q output is used to gate off the AND gate 120. Therefore, during this variable pitch feeding, the standard pitch feeding amount output from the fixed pitch 116 is invalidated.
When a print command is given by the print key, a desired pitch feed determined by the variable pitch 118 is executed. Then, along with this execution by the print key, the flip-flop 11
9 is also reset, and the AND gate 120 is turned on again to prepare a fixed pitch for the next printing.

As described above, according to the embodiment, the variable pitch setting using the pitch setting key must be performed for each print, but the variable pitch is fixed by operating the key yy-Y22 until a release command is issued. It is also possible to use this selected variable pitch continuously.

In the present invention, the minimum pitch feed amount of the platen is set to an integer fraction of the standard pitch feed amount, and as a result, when selecting variable pitch using the pitch setting key, not only coarse pitches larger than the standard pitch but also coarse pitches larger than the standard pitch are selected. , it is possible to select fine pitches that are finer than the standard pitch, and it is possible to quickly respond to requests for various pitch feeds.

Similarly to the pitch feed described above, the platen controller 78 includes a line feed setter 122 for setting a desired line feed amount, and the desired line feed amount is set by the line feed setting from the key/- key 22. The leading amount is selected. The line feed setter 122 in the embodiment is comprised of a RAM, and can set any line feed amount including fineness, or the arbitrarily set line feed amount may be stored in the Y dry/ceph 8Y as feed amount information. Ru. Therefore, Y Dry/Cef8Y is Y by the line feed amount set above by the command of the line feed key.
By driving the motor 82, it becomes possible to perform desired line feeding.

As described above, in the present invention, pitch feed and line feed are controlled separately, and the line feed key command can be performed simultaneously with or separately from the carriage return key command, and the command of the carriage return key can be performed separately. If they are performed at the same time, the pitch feed and line feed will be performed at the same time, completing the normal line feed function, but it is also possible to command only the line feed key, and in this case, it will be an independent line feed that is not linked to the carriage return. This makes it possible to shorten printing time.

Furthermore, the line feeding direction can be switched between forward and reverse by pressing the forward/reverse feed selection key on the YP line 78Y, and it is also possible to reverse feed the platen 14 or create vertical text.

In addition, the platen controller 76 is provided with a tab RAM for electrically performing tablation (hereinafter referred to as a tab), and an arbitrary tab can be set using the tab set key, and a tab can be read using the tab key. be exposed. The tab clear key clears the tab set, and in the present invention, the storage capacity of the tab RAM 124 is significantly larger than that of the conventional shuttle-type tab mechanism, and its range of use can be significantly expanded. RAM for tabs
The contents of 124 are read out using the tab key, and the contents are directly
By supplying a set number of nozzles to the Dry A78X, it is possible to perform desired pitch feeding when operating the tab key.

In the present invention, the platen controller 76
The margin can be set arbitrarily, and in the embodiment, a fixed margin setter 126 and a variable margin RAM are used.
12B, and the fixed margin setter 126 is for example A4
The left and right margins can be set in advance for the paper of the plate, and it is possible to automatically make the left and right margins constant for frequently used paper. The contents of the variable margin RAM 128 are arbitrarily selected using a margin set key, and switching between the fixed margin setter 126 and the variable margin RAM 128 is performed using a changeover switch 130 operated by a margin select key.

The selected margin signal which is the output of the changeover switch 130 is compared with the pitch feed amount signal from the XP rhinos 78
4 to the X\2 ino 278X, and the pitch feed can be stopped at a predetermined margin position. The prohibition processing device 134 is provided to print punctuation marks or other marks at the margin positions without starting a new line. The output of the comparator 132 is also supplied to a margin alarm 136,
The desired margin alarm action is performed.

Further, the platen controller 76 of the present invention has an alignment calculator 138, and can perform center alignment or right alignment between set margins. That is, the alignment calculator 138 has the output of the changeover switch 130 and the output of the key key 2.
Commands from the center alignment and right alignment keys from 2 and print key commands are supplied, and pitch feeding is performed in advance using the Pitch feeding to the set position is completed by the operation.

FIG. 8 shows an example of pitch feeding of the platen using the present invention, and the key ? in the left column is shown. The printing status for the -P operation is shown in the right column, and the figure shows the status where ``ha'' is printed after ``Iro'' with 2 spaces left, and the arrow below each print indicates the position of the printing mechanism. It shows.

In Figure 8, after "Iro" is printed at the ascending standard pitch, a variable pitch is specified by the pitch setting key, and when the next print "ha" is printed, the printing position jumps two spaces and "ha" is printed. It is shown. According to the present invention, it is possible to specify such an arbitrary pitch feed, and as shown in FIG. It is characterized by the fact that the printing position moves.

On the other hand, Fig. 9 shows another pitch feed specification state, which is almost the same as Fig. 8, but shows that when variable pitch is specified, the print position immediately moves to the selected position. This feature makes it possible to confirm the space specified in advance, and after completing this confirmation, the print key can be operated to perform the desired printing operation.

As described above, the platen controller 7 according to the present invention
8 has various functions, and in addition to the above-mentioned functions, for example, when the pitch feed amount is large, it is also possible to perform high-speed skipping by shortening the period of the drive/7 pulses supplied to the X motor 80. .

As described above, according to the present invention, it is possible to command the printing operation of the Japanese text writer only by inputting to the Kisey P, the actual printing operation is performed by an electric mechanism, and various controls are performed electrically. Therefore, it is possible to obtain a high-speed printing operation without noise. Further, according to the present invention, by electrically driving the platen, it is possible to perform various additional functions that were not possible with conventional Japanese typewriters.
In addition to being used directly as a print activation signal, commands from the key YTR are temporarily stored in the memory section, and thereafter the same printing operation can be repeated only by reading them from the memory section. The printed printing command information can be modified as desired, making it possible to perform desired editing operations extremely easily.

[Brief explanation of the drawing]

Fig. 1 is a schematic configuration diagram of an electric Japanese typewriter according to the present invention, Fig. 2 is a plan view of main parts of the electric type phase drive mechanism in Fig. 1, and Figs. 3 and 4 are explanations of the operation of Fig. 2. 5 is a perspective view of a main part of a platen drive mechanism suitable for the present invention, FIG. 6 is a perspective view showing another embodiment of a platen drive mechanism suitable for the present invention, and FIG. 7 is a perspective view of a main part of a platen drive mechanism suitable for the present invention. A block diagram showing the main electrical parts of the platen drive mechanism, and FIGS. 8 and 9 are explanatory diagrams showing a specific example of specifying pitch feed using the present invention. 10... Type box, 14... Platen, 1
8...Electric printing mechanism, 20...Electric platen drive mechanism, 22...Key 71? -y, 26... memory section, 76... platen controller. Figure 1

Claims (1)

[Claims] (1) A type box with a predetermined type arrangement, a platen to which recording paper is attached, a keyboard for inputting a desired print command, and a movement control of the type box based on the print command to place the desired type at the print position. An electric type box assembly mechanism that positions the type box, a t-motion printing mechanism that picks up the desired type from the type box based on the print command and prints it on recording paper, and a t-movement printing mechanism that controls the movement of the platen by a desired amount based on the print command and moves the platen at the minimum pitch. The amount is set to an integer fraction of the standard pitch feed amount, and it includes an electric platen drive mechanism that can feed fine pitches, and a memory unit that stores printing commands.The electric Japanese type allows you to arbitrarily specify the pitch feed of the platen. lighter.