JPS6130914B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an improvement in a roll paper storage device.

Traditionally, recording desk calculators and the like have a structure in which the roll paper is held by a holder protruding from the outside of the main body, while cash registers and the like have a structure in which the roll paper is stored and held inside the main body. However, in recent years, roll paper with a small outer diameter that can be stored inside a small recording desk calculator has become commercially available, and recording desk calculators are becoming more portable. However, while these models that store and hold roll paper with a small outside diameter inside the main unit are convenient to carry and have an excellent design, they are difficult to store and hold roll paper with a large outside diameter. However, depending on the state of use, it is necessary to frequently replenish roll paper.

In such a situation, the present invention allows roll paper with a small outer diameter to be stored in the main body, and
It is an object of the present invention to provide a roll paper storage device that can sufficiently respond to the use of roll paper with a large outer diameter.

Hereinafter, the present invention will be explained in detail with reference to the drawings. FIG. 1 is an external perspective view of a recording desk computer equipped with a roll paper storage device according to the present invention. In the figure, from the front side of the top surface of the main body case 1, the keyboard 2, display 3, paper outlet 4 are shown in order. and a lid body 5. A cross-sectional view of the main parts of such a recording type desktop electronic computer is shown in FIG. A feed roller 8 and a driven roller 9 pressed against the feed roller 8 are provided, and a roll paper 10 is provided in a space near the printing mechanism formed by the bottom plate of the main body case 1 and the lid 5.
The roll paper 10 has its tip end between the paper feed roller 8 and the driven roller 9, between the platen 6 and the thermal printing head 7, and further through the paper outlet 4 to the outside of the main body case 1. configured to reach.

To explain in detail how to store the roll paper 10, the roll paper 10 shown by the solid line in FIG.
The relationship between the lid body 5 and the roll paper 10 is when the outer diameter of the roll paper 10 is less than a predetermined size (32 mm in the example), and in this state, the roll paper 10 is completely inside the main body case 1 by closing the lid body 5. The roll paper 10 itself can be stored in the main body case 1 side and the rib 12 on the lid body 5 side to prevent unnecessary movement of the roll paper 10 inside.
The structure is such that this is prevented.

When the outer diameter of the roll paper 10 exceeds a predetermined size, the lid 5 is left open. The lid body 5 is opened and closed by a shaft 1 that pivots on both sides of the lid body 5 to the main body case 1.
3 and 13, and its opening angle is determined by the fitting part 1a of the bottom plate and the lid 5, which are formed in a concave and convex shape on the bottom plate side of the main body case 1 and the lid body 5 side so that they can be inserted interchangeably with each other. The fitting portions 5a of the two are limited in a mutually fitted state, and in this state, as shown by the dashed line in FIG. 2 and the partial perspective view of FIG. 3, the fitting portions 1a and 5a are substantially the same. Forms a continuous surface. In this state, as shown in FIG. 3, the main case 1 and the lid 5 form a box-shaped space (container) having an opening at the top, and the roll paper 10a having a large outer diameter can be easily removed from inside the box-shaped space (container). It is kept so that it does not. Note that the lid body 5 is not shown.
Of course, the closed state can be maintained by providing an appropriate engagement mechanism with the main body case 1 or a click stop mechanism on the pivots 13, 13.

As described above, the roll paper storage device according to the present invention stores roll paper of a predetermined size or less in the main body case by closing the lid, and stores roll paper of a size exceeding a predetermined outer diameter in the main body case. It is formed so that it can be held by the inner surface of the lid when the lid is open. especially,
In the present invention, since the inner surface of the lid and the upper surface of the bottom plate of the main body case are configured to be substantially the same continuous surface, roll paper can be rotated without any hindrance. This makes it possible to smoothly pull out printing paper from roll paper without requiring any special members. As described above, according to the present invention, the drawbacks of conventional storage devices of this type are eliminated and the device is easy to use, and the practical effects of the present invention are extremely large. .

[Brief explanation of the drawing]

FIG. 1 is an external perspective view of a recording desk electronic computer having a roll paper storage device according to the present invention, FIG. 2 is a partial sectional view thereof, and FIG. 3 is a partial sectional view showing one state of use. In the figure, 1 is the main body case, 5 is the lid, 6, 7,
Reference numerals 8 and 9 indicate a platen, a thermal printing head, a paper feed roller, and a driven roller, which constitute the printing mechanism;
a is roll paper.

Claims (1)

[Claims] 1. Near the printing mechanism built into the main body case,
In a roll paper storage device with a lid that can be opened and closed to form a space for storing roll paper with an outside diameter within a predetermined diameter in cooperation with the bottom plate of the main body case, roll paper exceeding a predetermined outside diameter can be stored in a roll paper storage device. is characterized in that a roll paper holding portion is formed on the inner surface of the lid to hold the lid in the open state, and the inner surface of the lid and the upper surface of the bottom plate are configured to be substantially the same continuous surface. roll paper storage device.