JPH0117472B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a paper cartridge in which a long piece of paper or the like is folded or rolled and stored in a case.

Traditionally, paper cartridges have been considered for storing folded paper (folded long paper) and roll paper (rolled long paper) in a case, but in terms of handling, One-touch insertion was still difficult, and in particular, paper had to be inserted manually into the paper feed mechanism. Furthermore, the unevenness of the leading edge of the paper during attachment and detachment of the paper cartridge made handling difficult.

The present invention eliminates these drawbacks, and its purpose is to realize complete one-touch loading without having to deal with paper cartridges. Another purpose is to eliminate paper leading edge irregularities when loading and unloading paper cartridges. Still another object is to provide a paper guide at the paper outlet of the paper cartridge, thereby simplifying the structure of the paper cartridge mounting machine.

A feature of the present invention is a paper cartridge that is removably attached to the case body and that supplies fan-fold or roll-shaped recording paper to a paper feeding means of a printing mechanism installed in the case body, and that the paper cartridge is removably attached to the case body. a storage section for storing recording paper; a lid attached to the storage section so as to be openable and closable;
a paper guide upper plate formed on an extension of the lid; and a paper guide lower plate formed on an extension of the storage section to extend longer than the paper guide upper plate, and having a cutter portion at the tip thereof. and a paper pressing means provided near the cutter portion, the paper guide lower plate having elasticity, and when the paper cartridge is installed in the case main body, the paper guide lower plate is provided to the paper feeding means. The paper cartridge is characterized in that the paper pressing means is configured to press against the paper feeding means through the recording paper guided by a plate.

The present invention will be described in detail below based on Examples. 1 and 2 are a perspective view and a side sectional view of a calculator with a printer attached with a paper cartridge of the present invention. Reference numeral 1 denotes a calculator with a printer, which is mainly composed of a printer 2 (detailed diagram is shown in FIG. 3) and a calculator section 3. The printer 2 is housed in a case 6 and prints the results calculated by the calculator section 3 on paper 4. The paper 4 is stored in the paper cartridge 5,
The paper is fed by a predetermined amount in the direction of the arrow by the paper feeding means 7 of the printer 2 and the paper pressing means 5b of the paper cartridge 5. The paper cartridge 5 can be easily attached and detached from the case 6.

Next, referring to FIG. 3, the printer 2 will be explained.
The motor 8 rotates the drive cam 9, which engages the printing means 10 to move the printing means 10 onto the paper 4.
It is caused to reciprocate at right angles to the direction of movement (as shown in Figures 1 and 2). Further, in order to drive the paper feeding means 7, the driving cam 9 is a rotating body 1 which is pivotally connected to the paper feeding means 7.
The engaged paper feed lever 12 is actuated to rotate the paper feed lever 1. In printing, the printing means 10 receives an electric signal and prints on paper 4 (shown in FIGS. 1 and 2).
The printing means 10 may be a thermal head, an inkjet head, a mechanical dot head, a discharge destruction head, or the like. The size of the printer 2 is extremely small, with a width of about 45 mm, a depth of about 30 mm, and a height of 7 mm.

FIG. 4 shows a paper cartridge 5 of the present invention.
FIG. 4A shows the case made of plastic or the like of the paper cartridge 5 when the fanfold paper 13, which is a folded long paper, is not inserted. The fanfold paper 13 is stored in the storage section 5a of the paper cartridge 5, and is fed through 5d, 5b, and 5c. 5b
5c is a paper cutter for cutting the folded paper 13. The fanfold paper 13 stored in the paper guide 5a is covered with a lid 5f, and is sandwiched and guided by the paper guides of the lower paper guide plate 5d and the upper paper guide plate 5e. FIG. 4B shows the completed paper cartridge 5 in which fanfold paper 13 is stored.

FIG. 5 is a side sectional view schematically showing the paper feeding mechanism. First, A in FIG. 5 will be explained. The fanfold paper 13 stored in 5a of the paper cartridge 5 is covered with a lid 5f and guided by paper guides 5d and 5e. The guided fanfold paper 13 is transferred to the paper feeding means 7 of the printer 2 (shown in FIG. 3) and the paper pressing means 5b formed on the extension of the paper guide 5d provided on the storage section 5a side of the paper cartridge 5. The paper is fed by a predetermined amount in the direction of the arrow. The paper pressing means 5b applies a pressing force to the paper feeding means by the spring force near 5d. The paper cartridge 5 is attached to the printer-equipped calculator 1 by pulling out the folded paper 13 to about 5c and doing it from the front, bottom, or back of the printer-equipped calculator 1. Juan Fold Paper 13 is
Initially, it engages with the paper feed means 7, and when the paper cartridge 5 is completely installed, it is pressed against the paper presser means 5b.

FIG. 5B shows an embodiment in which a roller 14 is arranged on the paper pressing means 5g of the paper cartridge in order to reduce the load on the printer 2.

FIG. 6 shows an embodiment in which a roll paper 16 is stored in a paper cartridge 15. The roll paper 16 stored in the storage section 5a of the paper cartridge 15 is stored in the lid 15f.
As in the previous embodiment, the lower paper guide plate 15d
and is guided by the paper guide on the paper guide upper plate 15e. The guided roll paper 16 is held between the paper feeding means 7 of the printer 2 (shown in FIG. 3) and the holding means 15b formed on the extension of the paper guide 15d provided on the storage section 15a side of the paper cartridge. The paper is fed by a predetermined amount in the direction. Paper pressing means 1
5b applies a pressing force to the paper feeding means 7 by the elasticity of the lower paper guide plate 15d. A paper cutter 15c can easily cut the roll paper 16 when the paper cartridge 15 is removed from the printer-equipped calculator 1 (shown in FIG. 1).

As explained above, according to the present invention, when the paper cartridge is installed in the case body, the paper pressing means is pressed against the paper feeding means via the recording paper guided by the paper guide lower plate to the paper feeding means. Since the recording paper is automatically conveyed by the paper feeding means, there is no need to set the recording paper into the paper feeding mechanism by hand, so there is no inconvenience.
Furthermore, since a paper cutter is formed at the tip of the lower paper guide plate, the leading edge of the recording paper can be neatly aligned. I have never had a situation where the leading edge did not engage the paper feeding means and the recording paper was not conveyed.

[Brief explanation of drawings]

1 and 2 are a perspective view and a side sectional view of a calculator with a printer attached with a paper cartridge of the present invention. FIG. 3 is a perspective view showing the printer of the printer-equipped calculator shown in the previous figure. FIG. 4 shows an embodiment of the paper cartridge of the present invention, and FIG. 5 is a side sectional view schematically showing the paper feeding mechanism. FIG. 6 shows another embodiment of the invention. 1... Calculator with printer, 2... Printer, 3...
...Calculator section, 4...Paper, 5...Paper cartridge, 5
b...Paper pressing means, 5c...Paper cutter, 5d,
5e... Paper guide, 6... Case, 7... Paper feeding means, 13... Fanfold paper, 14... Roller, 15... Paper cartridge, 15b... Paper pressing means, 15c... Paper cutter, 15d, e...paper guide, 16...roll paper.

Claims (1)

[Scope of Claims] 1. A paper cartridge that is removably attached to the case body and supplies fan-fold or roll-shaped recording paper to a paper feeding means of a printing mechanism installed in the case body, the paper cartridge comprising: a storage section for storing the recording paper; a lid attached to the storage section so as to be openable and closable;
a paper guide upper plate formed on an extension of the lid; and a paper guide lower plate formed on an extension of the storage section to extend longer than the paper guide upper plate, and having a cutter portion at the tip thereof. and a paper pressing means provided near the cutter portion, the paper guide lower plate having elasticity, and when the paper cartridge is installed in the case main body, the paper guide lower plate is provided to the paper feeding means. A paper cartridge characterized in that the paper holding means is configured to press against the paper feeding means via the recording paper guided by a plate.