JPS6315957Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a small electronic calculator with a printer.

Conventionally, in small electronic calculators with printers, such as calculators with printers, a roll of recording paper is stored inside the case body, and information obtained by key operations is printed on this recording paper by a printer. ,
It is designed to be sent out to the outside of the case body.

However, although small electronic calculators with printers such as those mentioned above have recently become more compact, they still require keyboards with many key tops and information obtained through key operations. As long as the display section, etc. to be displayed is fixed to the case body, it is necessary to provide a storage section for storing the recording paper that is attached from above the case body, along with the keyboard section, display section, etc. The drawback was that there was a limit to the size of the equipment, and it was not possible to achieve extreme miniaturization.

This idea was devised in consideration of the above-mentioned circumstances, and its purpose is to make it possible to easily and easily replace the recording paper from above the case body, and to make the device extremely compact. The purpose is to provide a small electronic calculator with a printer that can measure measurements.

Hereinafter, one embodiment of this invention will be described in detail based on the drawings. 1 in the figure is the case body of the calculator with printer, and this case body 1 is the upper case 2.
and a lower case 3, inside which a printer 4, a roll of recording paper 5, and batteries 6, 6 are housed. On the upper surface of the upper case 2, a large number of key tops 7 and switches 7a are arranged to protrude upward. A printed circuit board 9 is disposed on the lower surface of the upper case 2 at the locations where the key tops 7 are arranged, with an elastic contact sheet 8 interposed therebetween. When the elastic contact sheet 8 is pressed down by operating the key tops 7, the movable contacts 8a come into contact with each fixed contact (not shown) on the printed circuit board 9, thereby making the fixed contacts conductive. Further, near the rear (rightward direction in the drawing) side end of the upper case 2, as shown in FIG. 1, an opening 10 having a substantially rectangular shape is formed. An opening/closing lid 11 is disposed in this opening 10 to open and close it freely. That is, as shown in FIG. 1, this opening/closing lid 11 has pivot shafts 12, 12 at both ends in the front (left direction in the figure), and these pivot shafts 12, 12 are connected to the opening 10. By rotatably supporting the shaft on the mouth edge, the rotation shaft 1
2 and 12 to open and close the opening 10 as shown in FIGS. 2 and 3. In addition, the opening/closing lid 1 that opens and closes in this way
1 is a substantially flat plate made of transparent plastic;
A liquid crystal display device 13 is provided on the lower surface thereof, and its rear edge is extended obliquely downward, decorative portions 14, 14 are formed at both ends of this extended portion, and a rear side edge between these decorative portions 14, 14 is formed. A paper cutter 15 is formed at the slightly recessed edge. In this case, the liquid crystal display device 13 is electrically connected to the printed circuit board 9 by a flexible flat cable 16, and information obtained by operating the key tops 7 is displayed on the LSI (not shown) on the printed circuit board 9. ), and the paper cutter 15 cuts the recording paper 5 at a predetermined point, and its tip is formed in a sawtooth shape. Furthermore, the edge of the opening 10 facing the paper cutter 15, that is,
A paper cutter 1 is attached to the upper right edge of the lower case 3.
A paper guide 17 is formed to extend obliquely downward from the paper guide 5 .

On the other hand, the lower case 3 is formed with a battery accommodating portion 18 for accommodating the batteries 6, 6 at a location corresponding to the lower side of the printed circuit board 9, and the printer 4 is disposed by a printer holder 19. The battery compartment 18 is opened at the bottom, and a battery cover 18a is removably attached to the opened part, and the batteries 6, 6 stored in the battery compartment 18 are connected in series. Both ends are electrically connected to the printed circuit board 9 through wire-shaped terminal electrodes 20, 20. Further, the printer 4 sequentially prints the information obtained by operating the key tops 7 on the recording paper 5, and sends the printed recording paper 5 above the upper case 2 along the paper guide 17. It is. Further, the lower case 3 corresponding to the lower side of the opening/closing lid 11 is formed with a storage section 21 for storing the recording paper 5 wound into a roll.

Next, a case will be described in which the printer-equipped calculator configured as described above is used. First, key tops 7 are pressed to input predetermined calculation information into the LSI. Then, this calculation information or calculation result information calculated using this calculation information is input to the liquid crystal display device 13 provided on the opening/closing lid 11 via the flat cable 16 and displayed. On the other hand, the above calculation information and calculation result information are sent to the printer 4.
is also input to the printer 4, and is sequentially printed on the recording paper 5, and the printed recording paper 5
is sent out above the upper case 2 along the paper guide 17. At this time, the fed recording paper 5 is cut by the paper cutter 15 of the opening/closing lid 11.

If the printer 4 runs out of recording paper 5 after sequentially printing on the recording paper 5 in this way, first lift the paper cutter 15 side of the opening/closing lid 11 and rotate it around the rotating shafts 12, 12. Then, the opening/closing lid 11 is rotated upward to open the opening 10 as shown in FIG. Then, the recording paper 5 can be replaced through the opened opening 10.

Also, if a paper jam occurs when the recording paper 5 is fed out along the paper guide 17,
Paper jams can be easily cleared by rotating the opening/closing lid 11 to open the opening 10 in the same manner as described above.

In this way, in the above printer-equipped calculator, the opening 10 of the upper case 2 is rotatably provided with an opening/closing lid 11 that can be opened and closed freely, and recording is made corresponding to the lower side of this opening/closing lid 11. Since the structure includes the storage section 21 for storing the paper 5, the opening 10 can be opened by simply rotating the opening/closing lid 11 from above without turning the case body 1 over. Therefore, it is possible to easily and easily replace the recording paper 5, clear paper jams, and pull out the recording paper 5. In addition, the above opening/closing lid 1
1 is provided with a liquid crystal display device 13 so as to rotate together with the opening/closing lid 11, so that the mounting space can be reduced and the device can be significantly downsized.

In the above embodiment, the paper cutter 15 is formed on the opening/closing lid 11, but the paper cutter 15 is not limited to this, and may be provided on the edge of the opening 10.

Further, the opening/closing lid 11 of the above embodiment may be configured so that it can be fixed at any rotation angle when it is rotated upward, and in this case, the above-mentioned fixed rotation angle may be set approximately at a horizontal direction. If the angle is set at around 45 degrees, the displayed information on the display device 13 provided on the opening/closing lid 11 will be easier to read.

Further, in the above embodiment, the opening/closing lid 11 is configured to rotate in the front-rear direction (vertical direction) to open and close the opening 10, but this invention is not limited to this, and for example, in the horizontal direction. It may be configured to rotate to open and close the opening.

Furthermore, this invention is not limited to the liquid crystal display device 13, but may also use an electrochromic display device or the like.

Furthermore, this invention is not limited to the recording paper 5 wound into a roll, but may also use, for example, foldable recording paper.

As explained above, in the small electronic calculator with printer according to this invention, an opening is formed in the case body at least at a location located above the recording paper stored within the case body, and an opening-and-closing lid with a display unit is provided at this opening so that it can be opened and closed freely. Therefore, by opening and closing the opening-and-closing lid, operations such as changing the recording paper can be easily and simply performed from above, without having to turn over the case body. In particular, since the display unit is provided on the opening-and-closing lid so that it can be opened and closed together with the opening-and-closing lid, a storage unit for storing recording paper and recording paper can be actively provided below the display unit, which makes it possible to reduce the mounting space and ultimately to significantly reduce the size of the entire device.

Further, according to the above-mentioned small electronic calculator with a printer, since the opening/closing lid is equipped with a display section and a paper cutter, there are advantages such as fewer separate parts and easy assembly work.

[Brief explanation of the drawing]

FIG. 1 is a plan view of the external appearance of a calculator with a printer according to the present invention, FIG. 2 is a cross-sectional view taken along the line 2, and FIG. 3 is a cross-sectional view with the opening/closing lid open. 1... Case body, 5... Recording paper, 10... Opening, 11... Opening/closing lid, 13... Liquid crystal display device,
15...paper cutter, 21...storage section.

Claims (1)

[Claims for Utility Model Registration] (1) A case body having a storage section for storing recording paper and having an opening formed at least above the storage section, and a case body that covers the opening of the case body so as to be openable and closable. A small electronic calculator with a printer, comprising an opening/closing lid with a display section on the top. (2) The small electronic calculator with a printer according to claim 1, wherein the opening/closing lid is provided with a paper cutter for cutting the recording paper.