JPS6283956A - recording device - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a recording device, and more particularly to a recording device that can use roll paper of a plurality of paper widths.

[Prior Art] There are many recording apparatuses that use roll paper, which is a strip of recording paper wound into a roll.

An example of a recording device using such roll paper is shown in FIG.

What is shown in FIG. 8 is an example in which the present invention is applied to an electronic desktop calculator (hereinafter abbreviated as a calculator), and a holder b is attached to the rear wall side of the calculator a.

This holder b is formed into an approximately L-shape, one end of which is removably attached to the back wall of the calculator, and the other end of the shaft C extending parallel to the back wall of the calculator. has a bent portion d projecting upward.

A roll paper R is rotatably supported on the shaft C of this holder b, and the unwound end of the paper R is guided into the interior through an insertion slot e formed on the back wall of the calculator, and a recording means (not shown) is used. Recording is done by.

On the other hand, there are multiple types of roll paper with different paper widths, and when using roll paper of different paper widths, it is attached to a holder and the leading edge of the roll paper is inserted through the insertion slot of the device. .

When inserting roll paper, it depends on the type of recording device, but it is possible to use methods such as using the left or right edge of the insertion slot as a reference, or using the center as a reference, or even A suitable paper guide was used.

[Problems to be Solved by the Invention] However, when the above-described holder is used, the roll paper R is simply attached to the shaft C, and as shown in FIG. moves from side to side.

This tendency is particularly strong when narrow roll paper R is used.

Furthermore, if the roll paper is misaligned, it may become twisted or damaged before it reaches the recording device, and furthermore, it may become impossible to record at a fixed position.

[Means for Solving the Problems] In order to solve the above-mentioned problems, the present invention provides a suppressing means for pressing the side surface of the rolled sheet on the holder, and uses this pressing means to press the rolled sheets of different widths. It was configured to press toward the reference position.

[Function] If the above-mentioned structure is adopted, even if the width of the roll paper is different, the roll paper will be attached to the holder in a state where it is always pressed against the reference side by the suppressing means, so the leading edge of the roll paper can be held accurately. It can be positioned and guided to the equipment side.

[Example] Hereinafter, the present invention will be described in detail according to an example shown in the drawings. In the embodiments shown below, the recording device will be explained using a printing device used in an electronic desktop calculator (hereinafter referred to as a calculator), but the present invention is not limited to this embodiment, and can be applied to computers, word processors, etc. It can be applied to various recording devices such as electronic typewriters.

FIG. 1 shows the external appearance of a calculator equipped with the recording device of this embodiment. In the same figure, reference numerals 10 and 11 indicate the upper case and lower case of the calculator, respectively.
．． Various functional parts of the calculator are built into the lower case II. A keyboard 12 is arranged on the front side of the upper case 10, and data can be input via this keyboard. Data input from the keyboard 12 is processed by a central processing unit (not shown), and the results are displayed on the display unit 14. Also, the upper case. l-,
A paper cutter 15 made of a transparent material such as acrylic resin is arranged on the end side.
5 is a printer lid 1 detachably attached to the upper case 10;
8, and the roll-shaped recording paper (roll paper) 17 held in the recording paper holder 16 is cut. In other words, the recording paper 17 held in the holder 16 is unwound and inserted by the operator. After a predetermined recording is performed by a device comprising a port 19, the recording paper is discharged from a recording paper discharge port 20 and cut by a paper cutter 15.

The upper end portion 25 of the upper case 1O is rotatably supported on a shaft as will be described later, and is configured to be opened. By operating a lock lever 26, the upper end portion 25 can be opened or locked.

2 and 3 illustrate the internal structure when the upper end portion 25 is opened. In FIG. 2, 31 is a printer board, and various parts are fixed onto this board 31. The motor 32 is a drive motor, and its rotation is transmitted to the drive pulley 34 via a gear train 32a. A type belt 36 is attached between the driving pulley 34 and the driven pulley 35.

As shown in FIG. 3, printed characters such as numbers and symbols are integrally formed on the outer peripheral surface of the type belt 36. A carriage shaft 38 is horizontally suspended between the driving pulley 34 and the driven pulley 35, and a carrier 7ge 37 is mounted so as to be able to reciprocate along this carriage shaft 38. carriage 37
The forward movement is performed according to the printing, and the backward movement is performed by a coil spring 39 for return.

A hammer (not shown) is built into the carriage 37, and this hammer can be activated by energizing the solenoid 33.

That is, the type belt 36 is rotated by the driving pulley 34 and the driven pulley 35 rotated by the motor 32, and when the desired type to be recorded reaches a position corresponding to the hammer built in the carriage 37, the solenoid 33 is energized. The type belt 36 is temporarily stopped and then pressed by a hammer to record on the recording paper 17 loaded between the platen 45 and the type belt 36.

A carry operation is performed in synchronization with the completion of such a recording operation, and the carriage 37 moves in the direction of the upper digits (towards the right in Fig. 2).
After the carriage 37 is carried up by one digit and restarts the rotation of the type belt 36 for the desired number of digits, the carriage 37 is pulled back to the home position (the left end in FIG. 2) by the coil spring 36. The paper feed operation is performed in synchronization with the carriage return. In addition,
An ink roller 34' is attached to the type belt 36 and supplies ink.

Paper feeding is performed by sandwiching the recording paper 17 between a pinch roller 40 and a feed roller 46 and rotating the feed roller 46. The feed roller 46 is rotatably attached to a shaft 47 horizontally suspended on the substrate 31, while the pinch roller 40 is rotatably attached to a pinch roller shaft 41 attached to the platen 45. In this embodiment, the pinch roller 40, the pinch roller shaft 41, the platen 45, and the upper guide 55 formed continuously with the platen are integrated into a platen unit U in this embodiment. The platen unit U has at least a platen, and an upper guide 55. Pinch roller 40. It is constructed by combining one or more of the pinch roller shafts 41. This platen unit U can be rotated about a rotation shaft 46' as shown by the arrow in FIG. This rotation is performed by slidingly fitting a pin 48 attached to the back side of the upper end portion 25 into a groove 49 formed in the platen 45. That is, the row 2 cleverer 26 is disengaged from the engaging portion 25a of the upper end 25, and the upper end 25 is disengaged with the help of the force of the torsion coil spring 50 attached to the shaft 46'.
When the platen 45 is opened, the platen 45 rotates clockwise as shown in FIGS. 2 and 3, thereby separating the feed roller 46, pinch roller 40, and platen 45 to facilitate the insertion of paper. Further, a protrusion 51 is provided on the inside of the substrate 31 into which the platen is inserted.
By inserting the recording paper 17 between them, the recording paper 17 can be temporarily held and the recording paper can be loaded reliably and stably.

By the way, the detailed structure of the holder is shown in FIGS. 4 to 7.

This holder 16 is formed into a substantially L-shape, and one end of the holder 16 is removably attached to the back wall of the calculator, and its shaft portion 16a is carried parallel to the back wall of the calculator. A bent portion 16b is formed.

The inside of this folded portion 16b serves as a reference point for positioning the roll paper.

On the other hand, the shaft portion 16a has a small diameter portion 16c extending over a predetermined length in the middle.

Further, a fixed washer 53 is fixed to the base end side of the shaft portion 16a, a movable washer 54 is slidably fitted to the small diameter portion 16c, and a spring 55 is elastically loaded between the two portions. has been done.

Therefore, the movable washer 54 is always pressed toward the bent portion 16b by the spring 55.

Next, a method of using this embodiment configured as described above will be explained.

First, when it is desired to use a wide roll paper R1, the spring 55 is bent to move the movable washer 54 toward the fixed washer 53, and the roll paper R1 is attached to the shaft portion 16a.

Then, when the movable washer 54 is released, the force of the spring 55 moves the roll paper R1 through the movable washer 54.
is pressed against the bent portion 16b.

Further, the same is true when loading the narrow roll paper R2, but in this case as well, the side surface of the roll paper R2 is pressed against the folding portion tab as shown in FIG.

This condition occurs in the same way no matter what width of roll paper is used, and one side of the roll paper always lies at the bend 1.
6b, and this portion becomes the positioning reference point.

In addition, in the embodiment described above, the positioning reference point was provided on the bent portion 16b side, but the base end side of the holder 16 may be used as the positioning reference point, and the fixed washer 53 and the movable washer 54 may be installed in reverse. .

In each embodiment, the rolled sheet is not limited to recording paper, but includes recordable recording media such as plastic thin plates.

[Effects] As is clear from the above description, according to the present invention, a structure is adopted in which the shaft of the holder is provided with a pressing means for pressing the roll paper toward the positioning reference point. Even if the width of the paper differs, the roll paper can always be pressed to a predetermined position and positioned accurately.

[Brief explanation of drawings]

1 to 7 illustrate the first embodiment of the present invention. FIG. 1 is an external perspective view, FIG. 2 is a perspective view showing the internal structure, and FIG. 3 is a cross-sectional view showing the internal structure. Figure 4 is a perspective view showing the structure of the holder, Figure 5 is a cross-sectional view of the holder, Figure 6 is a cross-sectional view with wide roll paper installed, and Figure 7 is a narrow roll paper installed. FIG. 8 is a perspective view illustrating the conventional structure, and FIG. 9 is an explanatory diagram showing the drawbacks of the conventional structure. 16...Holder 16a...Shaft portion 16b...
・Bending part 16c...Small diameter part 53...Fixed washer 54...Movable washer 55...Spring R1, R2...Rolled paper sheet holder 1j Figure 4, treader /) Cross-sectional surface red cool # / 1 value shame tA〈桔's boiled +B Figure 6
IFigure 7

Claims (1)

[Claims] A recording apparatus comprising a holder for supporting a rolled sheet, characterized in that the holder is provided with a pressing means for pressing the rolled sheet to one side.