JPH0129708B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a feeding device for office machines such as typewriters and character typesetting machines, machine tools, and the like.

Conventional technology Conventionally, this type of feeding device, especially in typewriters, etc., has a space key for quantitative feeding, a space key for minute feeding, a space key for continuous feeding, etc. as a feeding device for horizontal or vertical feeding of the platen. Each was set up separately. Also, for example, JP-A-51
As shown in Japanese Patent Publication No. 131221, there is also a device in which fixed amount feed operation or continuous feed operation can be selectively performed with a single operation key depending on the length of operation time for operating the operation key.

Problems to be Solved by the Invention However, in a feeding device in which a space key for quantitative feeding, a space key for minute feeding, a space key for continuous feeding, etc. are provided separately, each key is located far apart, making operation cumbersome. In addition, with a device that selectively performs fixed feed operation or continuous feed operation with a single operation key depending on the length of operation time of the operation key, it is difficult to control the operation time of the key. There were cases in which the desired feed motion could not be obtained.

SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a feeding device that eliminates the drawbacks of the prior art, simplifies operation by reducing finger movements for key operations, and eliminates control errors in key operations. It's about doing.

Means for Solving the Problems In order to achieve the above object, the present invention arranges a space key for fixed amount feeding and a space key for small amount feeding adjacent to each other, and controls each of these space keys to a motor via a control device. The control device operates the motor by a predetermined amount in response to the space key for fixed amount feed, and operates the motor in a small amount in response to this key when the space key for small amount feed is operated. Furthermore, the present invention is characterized in that the motor is continuously operated when both the fixed amount feed space key and the minute amount feed space key provided adjacent thereto are operated.

Example Embodiments of the present invention will be described with reference to the drawings.

FIG. 1 shows a keyboard 1 of a typewriter, which includes a space key for quantitative feeding consisting of a platen quantitative left feed key 2, a platen quantitative right feed key 3, a platen quantitative upward feed key 4, and a platen quantitative downward feed key 5; A platen minute amount left feed key 6 adjacent to the platen fixed amount left feed key 2, a platen minute amount right feed key 7 adjacent to the platen fixed amount right feed key 3,
A space key for minute feeding consisting of a platen minute amount upward feed key 8 adjacent to the platen fixed amount upward feed key 4 and a platen minute amount downward feed key 9 adjacent to the platen fixed amount downward feed key 5 are arranged.

Space keys for quantitative feeding such as the platen quantitative left feed key 2, platen quantitative right feed key 3, platen quantitative upward feed key 4, and platen quantitative downward feed key 5, platen minute amount left feed key 6, platen minute amount right feed key 7, As shown in FIG.
A pulse motor 11 for the horizontal feed axis and a pulse motor 12 for the vertical feed axis are controlled via a control device 10 consisting of ROM, RAM, interface, etc. or a logic circuit.
has been contacted.

Next, to explain its function, the platen quantitative left feed key 2 is one of the space keys for quantitative feeding.
Alternatively, when the platen quantitative right feed key 3 is operated individually, the lateral feed axis pulse motor 11 is actuated to the left or right by a fixed amount by the control device 10, and the platen is fed by a fixed amount to the left or right.

Furthermore, when the platen quantitative upward feed key 4 or the platen quantitative downward feed key 5 is operated individually, the vertical feed axis pulse motor 12 is actuated quantitatively to the left or right by the control device 10, and the platen is moved upward. Or a fixed amount is sent to the bottom.

Next, when the platen minute feed left key 6 or platen minute right feed key 7, which is one of the space keys for minute feed, is operated individually, the control device 10 starts the pulse motor 11 for the lateral feed axis. It moves a small amount to the left or right, and the platen is sent a small amount to the left or right.

Further, when the platen slight upward feed key 8 or the platen minute downward feed key 9 is operated individually, the vertical feed axis pulse motor 12 is slightly operated to the left or right by the control device 10, and the platen is moved upward or downward. A small amount is sent to the bottom.

Further, the platen fixed quantity feed left key 2 and the platen minute quantity left feed key 6, or the platen fixed quantity right feed key 3 and the platen minute quantity right feed key 7, which are one of the space keys for fixed quantity feeding and space keys for minute quantity feeding, are operated at the same time. Then, the lateral feed shaft pulse motor 11 is continuously operated to the left or right by the control device 10, and the platen is continuously fed to the left or right.

In addition, the platen fixed amount upward feed key 4, the platen minute amount upward feed key 8, or the platen fixed amount downward feed key 5
When the and platen minute downward feed keys 9 are operated at the same time, the vertical feed shaft pulse motor 12 is continuously operated to the left or right by the control device 10, and the platen is continuously fed upward or downward.

Effects of the Invention In the feeding device of the present invention, the space key for fixed amount feeding and the space key for small amount feeding are arranged adjacent to each other, so that the operator's finger movement is slight when switching between fixed amount feeding and minute amount feeding. Key operation has been simplified, and when performing continuous feed, you only need to operate the adjacent space key for quantitative feed and space key for minute feed at the same time, and there is no need to control the key operation time, so you can avoid mistakes. It is possible to reliably start the desired feeding operation at the same time as the operation without causing any occurrence.

[Brief explanation of drawings]

FIG. 1 is a plan view of a keyboard according to an embodiment of the present invention, and FIG. 2 is a block diagram of the same. 1... Keyboard, 2... Platen fixed amount feed left key, 3... Platen fixed amount feed right key, 4... Platen fixed amount feed up key, 5... Platen fixed amount feed down key, 6... Platen minute amount feed left key, 7...
Platen minute amount right feed key, 8...Platen minute amount upward feed key, 9...Platen minute amount downward feed key, 10
...Control device, 11...Pulse motor for horizontal feed axis, 12...Pulse motor for vertical feed axis.

Claims (1)

[Claims] 1. A space key for fixed quantity feeding and a space key for small quantity feeding are arranged adjacent to each other, and each of these space keys is connected to the motor via a control device, and the control device is configured to control when the space key for fixed quantity feeding is operated. The motor is operated by a predetermined amount in response to this key, and when the space key for minute feed is operated, the motor is operated by a small amount in response to this key. A feeding device characterized in that a motor is continuously operated when a space key for minute feeding is operated together with a space key for small amount feeding.