JPS63131221A - Typewriter - Google Patents

Abstract

PURPOSE:To enable the alteration of printed character system by specifying the kinds of characters of the keys of a key input means for inputting document information with a key specification means. CONSTITUTION:An electronic typewriter is constituted with a keyboard 100, a display part 101, a panel switch 102, a printer part 103, a wheel exchange part 104, a control part 105 and a memory 106. And, by using a key panel for the keyboard 100 where the characters are printed corresponding to the keys and providing a hole for prescribing the key panel in the position corresponding to the panel switch 102 in the panel to place it on the above-mentioned keyboard 100, the specification of the characters of the keys is executed. By exchanging the keyboard panels where character system is printed, thus, the key input and the printing corresponding to the character system printed in the keyboard panel can be executed and the alteration of the kind of character and the addition of the kind of printed character can be easily executed. Now, plural tables corresponding to the above-mentioned key panel is stored in a memory 106.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a typewriter, and more particularly to a typewriter in which the type of characters printed can be changed by replacing the key panel of the keyboard.

[Prior Art] Conventionally, in order to change the character system printed by an electronic typewriter, a plate or the like printed with the font to be changed was placed on the keyboard to mask the display of the key switches. There is. However, when changing the character type using this plate, it is up to the user to change the type of characters that are actually printed. The system does not match the characters entered from the keyboard.

[Problems to be Solved by the Invention] Therefore, each time the user changes the writing system of input characters,
It is necessary to select a plate corresponding to the character system and check whether it matches the font that is actually printed, and the increased effort required to change the character type is a burden on the user.

The present invention has been made in view of the above-mentioned conventional example, and an object of the present invention is to provide a typewriter that can automatically change the printing character system in response to changes in the input character font, etc.

[Means for Solving the Problems] In order to achieve the above object, the typewriter of the present invention has the following configuration. That is, a key input means for inputting document information, a key designation means for associating the keys of the key input means with character types, a recognition means for recognizing the type of the key designation means, and a recognition means for identifying the type of the key designation means. and changing means for changing the type of character to be output in accordance with the type.

[Operation] In the above configuration, the character type of the key of the key input means for inputting document information is specified by the key designation means that associates the keys of the key input means with the character types. The recognition means operates to recognize the type of the key designation means and output the character type corresponding to the key designation means.

[Examples] Examples of the present invention will be described in detail below with reference to the accompanying drawings.

[Description of the structure of the electronic typewriter (FIG. 1)] FIG. 1 is a block diagram of the electronic typewriter of this embodiment.

In the figure, 100 is a keyboard equipped with character keys for inputting document information to be printed, function keys for instructing carriage return, paper feed, etc. A display unit 101 displays input document information, various statuses, and the like. Reference numeral 102 denotes a panel switch for detecting the type of key panel, which will be described later.The control unit 105 recognizes the type of character on the keyboard 100 based on the pressed state of the panel switch, and drives the wheel exchange unit 104 to select the corresponding type on the printer unit 103. Select a wheel and install it.

Reference numeral 103 denotes a printer unit that performs a printing operation in response to key input from the keyboard 100, and in this embodiment, it is a type printer that performs printing using a type wheel. Reference numeral 104 denotes a wheel replacement unit that replaces the type wheel in accordance with a change in the pressed state of the panel switch 102 or an instruction from the keyboard 100.

105 is a control unit that controls the entire typewriter; for example, the RA of the ROM1 work area stores control programs and data of a CPU such as a microprocessor, cPU, etc.
Equipped with M etc. 1.6 is a memory that stores a plurality of tables corresponding to the key panel of the keyboard 100, and when a key of the keyboard 100 is pressed, the control unit 105
The CPU uses the memory 106 based on the current key panel information.
The printer section 103 selects the type of type on the type wheel corresponding to the key code by referring to the table .

[Explanation of appearance of typewriter (Figs. 2 to 4)] Figs. 2(a) and 2(b) are external views of the electronic typewriter of this embodiment, and Fig. 2(b) shows the panel 110. It shows the removed state. Note that parts common to those in FIG. 1 are indicated by the same symbols.

In the figure, a type wheel 1 rotates in the direction of an arrow to select a type, and prints a character corresponding to a key code input from a keyboard 100 on a sheet of paper 3 via an ink ribbon. 2 is a carriage that moves parallel to the longitudinal direction of the platen 4 to determine the printing position. 11O is a key panel for the keyboard, on which characters are printed corresponding to the keys. This key panel 110 is provided with a hole for specifying the key panel at a position corresponding to the panel switch 102, and is placed on the keyboard 100 to specify the character of the key.

FIGS. 3(a) and 3(b) are diagrams showing an example of the key panel 110.

111 are the four panel switches 10 of the keyboard 100
There are four holes corresponding to number 2, and if these holes are open, the corresponding switches will be turned off, and if the holes are covered, the corresponding switches will be turned on. 201 is a hole corresponding to a key switch, and at the bottom of each hole is a panel 200.
Characters, symbols, etc. that are input by pressing each key with is set are printed.

FIG. 3(b) shows the panel 202 in which only the rightmost switch of the panel switch 102 is turned on.

Usually, the characters printed on the keyboard 100 are U
This is the character of the USA S CII code, and when all the panel switches 102 are in the off state (the key panel is not installed), the character of this USA S CII code is configured to be input. ing.

By placing the key panel 110 on the keyboard 100, the pressed state of the panel switch 102 is changed, and the control unit 105 detects the type of the key panel 110 and outputs the code input from the keyboard 100. Make a correspondence with characters.

FIG. 4(a) shows the panel switch 102 when the panel 202 shown in FIG. 3(b) is placed on the keyboard 100.
FIG. Panel switch 1 of panel 202
Since the rightmost hole of most of the holes corresponding to 02 is closed, only the panel switch 103 is turned on by setting the key panel 202.

FIG. 4(b) is a diagram showing the relationship between the pressed states of the four panel switches 102 and the input character system, where circles indicated by dotted lines indicate that the panel switches are on, and circles indicated by solid lines indicate that the panel switches are in the off state. Shows a panel switch. In this way, in the case of 40, the character system A is specified, in the case of 41, the character system B is specified, and so on, depending on the state of the four panel switches, 16f! You will be able to choose from a variety of writing systems.

Hereinafter, the operation of replacing the type wheel in the printer unit 103 accompanying the replacement of the key panel 110 described above will be described.

[Explanation regarding wheel cartridge replacement (Fig. 5,
FIG. 6)] FIG. 5 is a cross-sectional view of the carriage 2, and illustrates the mechanism for replacing the wheel cartridge 30. In this figure, parts common to those described above are indicated by the same symbols.

The type wheel 1 is housed inside the wheel cartridge 30, and five wheel cartridges 30 themselves are housed in a wheel magazine 40 in parallel.

The wheel magazine 40 can be stored by sliding it from the side into the storage stand 41. A storage stand shaft 42 passes through a part of the bottom of this storage stand 41. Also, this storage stand 41
A rack 43 is provided. This rack 43 and a gear 44 mesh with each other, and the gear 44 is rotated by a motor 45. Therefore, movement of the storage table 41 in the direction of arrow C for selection of the wheel cartridge 30 is performed by the rotation of the motor 45. When selecting a type wheel, the motor 45 can be controlled to stop at a wheel cartridge containing a type wheel corresponding to the type of key panel 110 among the five type wheel cartridges in the wheel magazine 40. Further, the storage stand 41 is provided with recesses 50 corresponding to each of the medium eel cartridges.

The wheel magazine 40 is placed in the front and back direction of the platen 4 (arrow C
direction), the up/down lever 46 continues to maintain its normal position as shown in FIG. A rack 47 is cut at the end of the vertical lever 46 on the opposite side from the part connected to the magazine 40, and is engaged with a gear 48. This gear 4
8 is rotated by a motor 49.

FIG. 6 shows a state in which the wheel cartridge 30 is lifted upward from the state shown in FIG. 5.

At this time, the gear 48 is rotated counterclockwise by the rotation of the motor 49, and the rack 47 meshing with the gear 48 causes the vertical lever 46 to rotate clockwise around 51 and is lifted upward. At this time, the wheel cartridge 30 is lifted upward by a lifting member 52 attached to the end of the up/down lever 46. Until now, the counterclockwise rotation of the storage table lock lever 53 by the spring 54 had been interrupted by pressure from the vertical lever 46 at a point 55, but as shown in FIG. It is canceled because it has risen to the position. In this way, the convex portion 56 at the tip of the storage table lock lever 53 just fits into the recess 50 of the storage table 41. Here, the movement of the wheel magazine 40 in the longitudinal direction is completely fixed, and the position will not shift even if a small amount of external force is applied.

In FIG. 5, a bullet plate 59 and a disk portion 60 are attached to the tip of the shaft 5B of the wheel motor 57.
An annular groove is arranged at the tip of the disc part 60. This entire wheel motor part, which is equipped with zero or more components, performs reciprocating motion in the direction of arrow D by a certain guide means. The vertical movement of the wheel cartridge 30 and the movement of this wheel motor unit are linked, and while the wheel cartridge 30 is in the wheel magazine 40, the wheel motor unit waits at a position away from the platen 4, and the wheel cartridge 30 When it is lifted up by the vertical lever 46 and reaches the height of the wheel motor shaft 58 as shown in FIG. 6, it starts to be driven in the direction approaching the platen 4, and finally the center of the wheel as shown in FIG. 7, which will be described later. hole 2
0, the type wheel 1 corresponding to the key panel is attached to the wheel motor 57.

During a printing operation, when the wheel cartridge 30 is moved to a regular printing position by the movement of the carriage 2, a desired character is selected by rotation of the wheel motor 57.

A hammer 61 is located at the tip of the spoke 21 of the type wheel 1 on the side opposite to the platen 4, and this hammer 61 is driven by a solenoid 62, and the spoke 2
Hit the tip of 1. 63 is a ribbon cassette, and an ink ribbon exposed portion 64 is attached to the hammer 61 and the type mold 24 at a position where ink can be transferred onto the paper 3. 65 is a ribbon winding device;
As a result, the ink ribbon 66 is wound up.

When the wheel cartridge 30 is lifted upward by the vertical lever 46, if the ink ribbon 66 is slack, there is a possibility that it will come into contact with the protrusion of the wheel cartridge 30, so the wheel cartridge 30 is lifted upward. If so, remove the ribbon winding device 6 before lifting it.
5, the ink ribbon 66 is spread in an appropriate amount to take up the slack.

[Description of the type wheel and wheel cartridge (Figures 7 to 8)] Figure 7 (a) is a front view of the type wheel, and Figure 2 (b) is a side view of the type wheel and a cross section taken along A-A'. FIG.

In the figure, the cylindrical inner circumferential surface 20 of the center hole is the type wheel 1.
This is for inserting the shaft of the wheel motor 57 that rotates the wheel. Back side of wheel 1 (Fig. 7(a)
The front side of the wheel 1 is flat from the center of the wheel to the tips of the spokes 21, but the front side of the wheel 1 has a step between the flat surface 22 and the flat surface 23.
The wall thickness of the plane 23 is thinner. plane 23
Spoke portions 21 having a thinner wall thickness than the outer periphery thereof extend outward at substantially the same angle in the circumferential direction, and a type mold 24 is formed at the outermost end of the spoke portions 21 on the front side. During printing, the back surface of the type mold 24 is struck with a hammer or the like, and the type surface of the type mold 24 is pressed onto the paper 3 wound around the platen 4 via an ink ribbon, thereby printing is performed.

FIG. 8(a) shows a wheel cartridge 3 consisting of an integrated configuration of a type wheel and a type holder that directs the type wheel.
FIG. The holder portion of the wheel cartridge 30 is basically composed of two parts, and a wheel front plate 31 and a wheel back plate 32 are assembled so as to sandwich the type wheel 1 therebetween. The connection is achieved by fitting six bosses 33 protruding from the wheel back plate 32 into six holes 34 in the wheel front plate 31 and welding them.

FIG. 8(b) is a side view of the wheel cartridge 30, and FIG. 8(C) is a sectional view taken along line BB' in FIG. 8(a).

At the center of the wheel back plate 32 is a hole 35 into which the shaft of the wheel motor 57 is inserted. The outer surface 36 of the wheel front plate 31 is completely flat. At the center of the wheel front plate 31 is a hole 36 that is sufficiently larger than the diameter of the flat surface 22 of the type wheel 1, and a part of the circle is cut out like a notch 37. Further, the plane 36 has six holes 34 for connection with the wheel back plate 32. Further, the upper end of the wheel front plate 31 has a shape shown by a line 38, and the type wheel is directly exposed above the boundary 38 as viewed in the drawing.

[Description of control block (Figs. 9 and 10)] Fig. 9 is a diagram showing the side surface of the carriage and the control block of the electronic typewriter of this embodiment, and the same parts as those in the previous explanation are indicated by the same symbols. There is.

In the figure, 70 is a sensor for detecting the position of the storage table lock lever 53, and the wheel cartridge 30 is connected to the wheel motor 5.
7 is attached. If the protruding portion 73 of the storage table lock lever 53 blocks the light transmitting portion of the sensor 70 in the state shown in FIG. 9, it is determined that the wheel cartridge 30 is not attached to the wheel motor 57. 71 is a sensor amplifier that amplifies the output of the sensor 70, and 105 is a CPU that performs calculations and controls the entire device, and serves as a work area for an 80M% CPU that stores control programs and data for the CPU, which temporarily stores data. This is a control unit that includes a RAM and the like that performs.

73 and 74 are drive circuits for the motors 49 and 45, respectively. When moving the wheel magazine 40 six times in the direction of arrow E to the leftmost home position, the control unit 7
2 outputs a signal for rotating the motor 45 to the drive circuit 74, and moves the wheel magazine 40 in the direction of arrow E. While the motor 45 is operating, the control unit 105 inputs a signal from the home position sensor 76 via the sensor amplifier 77 to check whether the motor 45 has reached the home position. When the wheel magazine 40 reaches the left end and the protruding light shielding plate 75 of the storage stand 41 shields the light transmitting part of the home position sensor 76, the drive signal for the motor 45 is turned off. This causes the wheel magazine 40 to stop at the initialization position (home position). 78 is a sensor for determining the type of magazine 40, and 80 is a sensor for determining the type of wheel cartridge 30, both of which are reflective optical sensors.

FIG. 10 is a flowchart of the type wheel replacement process accompanying the key panel 110 replacement.

First, in step S1, the on/off state of the panel switch 102 is checked, and it is checked whether there is any change in the pressed state of the panel switch 102, that is, whether the key panel that has been placed up until now has been changed. Nothing is done when the panel 110 is not replaced, but when the panel 110 is replaced, the process proceeds to step S2, where the type of key panel 110 is recognized based on the state of the panel switch 102, stored in the RAM, and is installed. See if it matches the character system of type wheel 1. This is the RA of the control unit 105.
The type information of the type wheel stored in M may be compared with the state of the panel switch 102, or the f! of the wheel cartridge 30 may be compared. It may be compared with the output of the sensor 80 for determining the neck and the panel switch 102 for identifying the key panel.

If the type of type wheel 1 and the character system on the key panel do not match, the process proceeds to step S3, in which the type of wheel magazine 40 is determined by the sensor 78, and in step S4, it is determined whether the desired type wheel is stored in the magazine. Discern. At this time, the type of cartridge 30 may also be determined by sequentially moving the magazine 40 six times in the direction of arrow E and lifting the wheel cartridge 30 sequentially to the position of the sensor 80 corresponding to the sixth movement of the magazine. good.

If there is no corresponding cartridge (type wheel) in the magazine 40, the process proceeds to step S5, and an error message is displayed on the display section 100 or by sounding a buzzer or the like.

If there is a corresponding wheel, the type wheel is replaced as described with reference to FIGS. 5 and 6.

After that, when a key code is input from the keyboard 100, the control unit 105 controls the key panel 110 in the memory 106.
Referring to tables 1 to n corresponding to the type, the key code is converted into a character code corresponding to the keyboard panel 110, and the printer unit 103 prints the code or displays the character on the display unit 101.

Note that even for conventional electronic typewriters with only one type wheel, if the character system on the keyboard panel and the type of type wheel currently installed do not match, an error message is output on the display unit 101. , a warning can be generated by a buzzer sound.

Furthermore, although this embodiment describes the case of a type-type wheel printer, the present invention is not limited to this. For example, a typewriter in which the printer section is configured to print in a dot matrix format, such as a wire dot or a thermal printer, can be used. Of course, it is possible.

As explained above, according to this embodiment, by replacing the keyboard panel on which the character system is printed, key input and printing corresponding to the character system printed on the keyboard panel becomes possible, so the character type can be changed. This has the effect of making it easy to add additional printing character types.

In addition, the character wheel exchange mechanism and the panel exchange operation are linked, making it easy to exchange the character wheel and print operations when handling a variety of characters.

[Effects of the Invention] As described above, according to the present invention, there is an effect that the system of character types to be output can be automatically changed in response to a change in the system of input character types.

[Brief Description of the Drawings] Fig. 1 is a configuration diagram of the electronic typewriter of this embodiment, Fig. 2 (a) (t)) is an external perspective view of the type wheel type electronic typewriter of this embodiment, Figure 3 (a) and (b) are diagrams showing an example of a key panel, Figure 4 (a) is a sectional view showing the relationship between the panel switch and the key panel, and Figure 4 (b) is a diagram showing the state of the panel switch and characters. Figure 5 is a side view of the gear ridge of the type wheel type printer unit of this embodiment, Figure 6 is a diagram showing the wheel cartridge slid upward, and Figure 7 (a) is a diagram showing the relationship with the system. FIG. 7(b) is a front view of the type wheel, FIG. 7(b) is a cutaway sectional view of the type wheel, FIG. 8(a) is a front view of the wheel cartridge combined with a holder that supports the type wheel, and FIG. 8(b) is a front view of the type wheel. A side view of the wheel cartridge, FIG. 8(C) is a sectional view taken along line BB' in FIG. 3(a), FIG. 9 is a diagram of the carriage of this embodiment and its control block diagram, and FIG. 10 is a diagram of the keyboard panel. It is a flowchart of the type|mold wheel exchange process accompanying exchange. In the figure, 1... type wheel, 2... carriage, 3
...paper, 4...platen, 21...spoke,
24... Letter mold, 30... Wheel cartridge, 40... Wheel magazine, 41... Storage stand,
44... Gear, 45... Motor, 46... Vertical lever, 49... Motor, 53 Storage stand lock lever 1
57...Wheel motor, 61...Hammer, 62...
...Solenoid, 63...Ribbon cassette, 66...
・Ink ribbon, 70.76-...Sensor, 73.74
...Drive circuit, 78.80...Sensor, F1.77
．． 79.81...Sensor amplifier, 100...Keyboard, 101...Display section, 102...Panel switch, 103...Printer section, 104...Wheel replacement section, 105...Control section , 106--memory, 11
0,200,202...key panel, 111...hole. Figure 2 (0) Figure 2 (b) Figure 3 (0) Figure 3 (b) Figure 4 (b) →7 3Q Figure 1 to 8 (b) Figure 8 (C) Figure 10

Claims (4)

[Claims] (1) A key input means for inputting document information, a key designation means for associating the keys of the key input means with character types, a recognition means for recognizing the type of the key designation means, and a recognition means for recognizing the type of the key designation means. A typewriter characterized in that it is provided with a changing means for changing the type of character to be outputted in accordance with the type of character that is output. (2) The typewriter according to claim 1, wherein the key designation means is a key plate on which characters or the like are printed corresponding to the key positions. (3) The recognition means is at least one switch provided near the keyboard, and the type of the key plate is recognized based on the pressed state of the key plate. The typewriter mentioned. (4) Claim 1, characterized in that the changing means changes the character type by replacing the type wheel.
Typewriter as described in section.