JPS623235Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an electric Japanese typewriter, and more particularly to an electric Japanese typewriter that performs indexing by horizontally driving a type box having a predetermined type arrangement.

In recent years, there has been a demand to electrify Japanese typewriters in order to improve the efficiency and standardize office processes, but in conventional devices, only the printing drive unit that prints type on recording paper by impact is electrified. This device merely reduced the burden of labor that conventionally relied on the typist's hands. Therefore, with conventional electric Japanese typewriters of this type, the process of picking up type that requires many years of skill cannot be motorized, which has significantly hindered its widespread use.

In order to drive the type box in a two-dimensional direction along a predetermined horizontal plane, a large and complicated drive mechanism was proposed in the conventional device. A drawback was that typewriters were difficult to obtain. In particular, in the production of small electric Japanese typewriters, it is desirable to use the type box holding mechanism of conventional manual Japanese typewriters as unchanged as possible.
There was a need for a device that would allow the desired motorized mechanism to be constructed with only minor modifications to the type box itself and its holding parts. In normal cases, type boxes have multiple types of ``Iroha'' or ``Aiueo'' type layouts, and even type boxes with the same layout can be used to replace type, etc., so these type boxes can be typed as needed. It has been extremely difficult to obtain an electric Japanese typewriter that can be easily attached and detached from the writer body.

The present invention was devised in view of the above-mentioned conventional problems, and its purpose is to be able to smoothly drive the type box and the support frame that supports it in each axis direction with a simple structure, and to easily move the type box. The purpose of the present invention is to provide an improved electric Japanese typewriter that can be detached and replaced.

In order to achieve the above object, the present invention provides a Japanese typewriter in which a type box having a predetermined type arrangement is horizontally driven to perform indexing. The type box and the type box are provided with a support frame that supports the box so as to be slidable back and forth in a direction perpendicular to the one direction, and drive motors that reciprocate the type box and the support frame in the orthogonal direction via belts, respectively. A lower carrier is fixed to the belt, and an upper carrier is rotatably supported on the type box and can be engaged with and released from the lower carrier by reversing the rotation. It is characterized by being more.

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

FIG. 1 shows a schematic structure of an electric Japanese typewriter according to the present invention, and in the figure, a type box 10 has a predetermined single type arrangement. Said type box 1
An electric printing mechanism 12 is provided to pick up desired characters from zero and print them on recording paper, and the electric printing mechanism 12 includes a print controller 14 to control the character pickup and electric printing operations.

Type pickup in the present invention is automatically performed by motor drive, and for this purpose, the type box 10 is provided with an X-axis drive motor 16 and a Y-axis drive motor 18 for moving and positioning in the X and Y directions. The type box 1 is moved by both motors 16 and 18.
0 is controlled to move to a desired position, and the selected print character is controlled to be positioned at a predetermined print pick-up position 0.
A motor driver 20 is provided to drive both motors 16 and 18, and a desired drive signal is supplied from the motor driver 20 to both motors 16 and 18 in response to a type pickup command from the print controller 14. By moving the type box 10 by a predetermined amount in the X and Y directions, desired type can be positioned facing the type pickup position 0.

The electric printing mechanism 12 is provided with a printing device 22, and with the desired type facing the type pickup position 0, the printing device 22 picks up the desired type from the type box 10 in response to a printing command from the print controller 14. The desired printing effect can be obtained by pulling out the printed characters and hitting the recording paper 26 on the platen 24 with the printed characters.

An input means 28 is provided to instruct the electric printing mechanism 12 to select desired characters, and the input means 28 is connected to the keyboard 3 having a desired key arrangement.
0, the operator selectively operates a desired key directly on the keyboard 30 or by using a key arrangement attached to an attached keyboard display, and supplies a desired input signal to the electric printing mechanism 12 using a switch on the keyboard. be able to.

FIG. 2 shows a plan view of the main parts of the type box drive mechanism of the electric Japanese typewriter shown in FIG. A support frame 36 is provided to be slidable in the Y direction in the figure via a group of bearings 34. The above-mentioned type box 10 is supported on the support frame 36 via a group of bearings 38 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 36 in the respective axial directions by the aforementioned motors 16 and 18, 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 42 and 44 are rotatably supported on a mounting plate 40 fixed to the typewriter body (not shown). An X-axis drive belt 46 is stretched over the X-axis drive belt 44, and the X-axis drive belt 46 is driven in the X-axis direction in accordance with the drive of the X-axis drive motor 16. Therefore, the mounting plate 40
The X-axis drive motor 16, which is fixed to the mounting plate 40, is fixed to the typewriter body and maintains its fixed position when the type box 10 is driven in either the X or Y direction.

Then, the X-axis drive belt 46 is driven by the type box 1.
0, the X-axis drive belt 46 and the type box 10 are connected at a connecting portion 48. The connecting portion 48 includes a lower carrier 50 fixed to the X-axis drive belt 46 and an upper carrier 56 rotatably provided on a shaft 54 supported by a bearing 52 of the type box 10.
It is equipped with. And the upper carrier 56
is provided to be able to slide freely on the shaft 54. As a result, as will be described later, when the type box 10 moves in the Y-axis direction, the shaft 54 slides on the upper carrier 56 and moves along the X-axis.
The type box 10 can be moved in the Y-axis direction without applying any excessive force to the shaft belt 46. The lower carrier 50 has a convex portion 50a, and the upper carrier 5
6 is provided with a corresponding recess 56a, and both carriers 50, 56 can be easily attached and detached as shown in FIG.

On the other hand, in order to drive the support frame 36 in the Y-axis direction, a pair of pulleys 60 and 62 are rotatably supported on the mounting plate 58, and a Y-axis drive belt 64 is stretched around these pulleys 60 and 62. Both ends 64a and 64b of the Y-axis drive belt 64 are attached to the end surface of the support frame 36 with attachment screws 66. Therefore, the support frame 36 is driven by the Y-axis drive motor 18.
It is driven in the Y-axis direction via an axial drive belt 64. During driving in the Y-axis direction, as described above, the shaft 54 integrally fixed to the type box 10 slides on the upper carrier 56, and the type box 10 is moved along the Y-axis relative to the X-axis drive belt 46. It is understood that it is possible to move freely in the direction.

In this way, the characteristics of this invention are as follows:
A support frame 36 is provided on the typewriter body so as to be slidable back and forth in one direction, and supports the type box 10 so as to be slidable back and forth in a direction perpendicular to the one direction. drive motors 16 and 18 for driving the type box 10 in the direction, and the type box 10 is connected to a connecting portion 4 to a drive mechanism for driving the type box 10.
They are detachably connected only at 8.

The present invention consists of the above configuration, and its operation will be explained below.

In response to a type pickup command from the print controller 14, each motor 16, 1 is activated from the motor driver 20.
8 is supplied with a desired drive signal, the type box 10 and the support frame 36 are driven in each axis direction, and the desired type is positioned facing the type pick-up position 0. In this way, the type box 10 and the support frame 36 are driven in each axial direction by independent feeding mechanisms, so that
There is less interference between movements in each axis direction,
Drive is performed smoothly.

Then, with the desired type facing the type pick-up position 0, the printing device 22 extracts the desired type from the type box 10 in response to a print command from the print controller 14, and places the type on the recording paper 26 of the platen 24. It can be struck to obtain the desired printing effect.

Next, when taking out the installed type box 10 and installing another type box 10 with a different type arrangement, or replacing the type in a type box with the same arrangement, the case is indicated by a two-dot chain line in FIG. The upper carrier 56 is rotated so that the upper carrier 56 is disconnected from the lower carrier 50, and the type box 1 is opened as shown in FIG.
Pull out 0. By performing the reverse operation, a new type box 10 can be installed, or the same type box with replaced type can be installed. In this way, the X-axis drive belt 46 and the type box 10 are connected to the connecting portion 4.
Since they are removably connected only at 8, the type box 10 can be easily replaced.

In the above-mentioned embodiment, the case where the type box and the support frame are driven by the drive motor was explained, but the drive motor may be a step motor, a DC
It is possible to use various motors such as motors.

As explained above, according to the present invention, 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 possible. It can be carried out.

In addition, since the type box is removably connected to the drive mechanism that drives it, only at the connecting part,
It is possible to easily exchange type boxes or replace types in the same type box.

Furthermore, the drive mechanism for driving the typebox and support frame does not require components such as a clutch or lever, so the mechanism is simple and has the advantage of having a light weight moving part.

[Brief explanation of the drawing]

Fig. 1 is a block diagram showing the schematic configuration of the electric Japanese typewriter according to the present invention, Fig. 2 is a plan view of the main part of the type box drive mechanism of the electric Japanese typewriter shown in Fig. An explanatory diagram showing the attachment and detachment mechanism of the connecting part in the electric Japanese typewriter according to the invention,
FIG. 4 is an explanatory diagram showing a state in which the type box is taken out in FIG. 3. 10...Type box, 16...X-axis drive motor, 1
8... Y-axis drive motor, 36... Support frame, 46...
...X-axis drive belt, 48...Connection section, 50...Lower carrier, 56...Upper carrier.

Claims (1)

[Claims for Utility Model Registration] (1) In a Japanese typewriter that performs indexing by horizontally driving a type box having a predetermined type arrangement, the type box is supported by the typewriter body so as to be able to reciprocate in one direction. a support frame that supports the type box and the support frame in a reciprocating manner in a direction perpendicular to the one direction; and drive motors that reciprocate the type box and the support frame in the orthogonal direction via belts, the type box and the type box. A connecting portion that connects the driving belt includes a lower carrier fixed to the belt, and an upper carrier rotatably supported by the type box and capable of engaging and disengaging from the lower carrier by reversing the rotation. An electric Japanese typewriter featuring the following features: (2) The lower carrier is formed with a convex portion, and the upper carrier is formed with a concave portion for engaging with the convex portion of the lower carrier, as set forth in claim 1 of the utility model registration claim. Electric Japanese typewriter.