JPS6315955Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Technical Field of the Invention] This invention relates to a case structure of a small electronic device such as a small electronic calculator.

[Prior art]

In recent years, small-sized electronic calculators, called calculators, have been actively developed, and notebook-type calculators have been particularly developed. This type of notebook-type calculator uses, for example, a foldable notebook case made of two layers of synthetic leather, top and bottom, on the left and right, with a keyboard on either the left or right side of the notebook case, and a calculation function and display function on the other side. A hard equipment case equipped with the above-mentioned equipment is sandwiched between upper and lower synthetic leathers so that the upper part of the equipment case is exposed, and then the periphery of the synthetic leather is adhered by ultrasonic welding.

[Problems with the prior art] In the notebook type calculator as described above, it is necessary to provide a cover body such as a battery cover for replacing electronic parts such as button type batteries and LSIs. Providing it on the case is undesirable both in terms of appearance and structure, and for this reason it is generally provided on the top surface of the equipment case. However, providing the lid on the top surface of the device case has the disadvantage that the display section, operation section, etc. of the device case are restricted, resulting in a small usable area and poor operability.

In addition, in the case of the above-mentioned notebook type calculator, since each synthetic leather of the notebook case is bonded by ultrasonic welding, there is a problem that electronic components such as LSI inside the device case may be destroyed by the noise generated during welding. It was hot.

[Purpose of invention]

This idea was made in consideration of the above-mentioned circumstances, and it is possible to widen the usable area without restricting the display section and operation section of the device case, and it is also possible to use button-type batteries, LSIs, etc. To provide a case structure for a small electronic device in which the electronic components can be easily and easily replaced, and the electronic components inside the device case are not destroyed by noise caused by ultrasonic welding that welds the periphery of the notebook case. It's about doing.

[Key points of the idea]

In order to achieve the above purpose, this invention provides a keyboard on one side of a notebook case that can be folded freely and a hard device case on the other side, and connects the keyboard terminal of the notebook case with the device case. By connecting the electrode terminals provided at the ends of the case with the connecting means, the cases are connected, and the terminals are electrically connected, and this part forms a hinge shape, so that the cases can be connected to each other. It is designed to open and close.

〔Example〕

Hereinafter, an example in which this invention is applied to a notebook type calculator will be explained in detail with reference to FIGS. 1 to 3. 1 in the figure is a notebook case,
This notebook case 1 is made of synthetic leather and can be bent freely into two parts, left and right. A keyboard 2 for Alphabet is provided on the right side of the notebook case 1. This keyboard 2 is the second
As shown in the figure, a keyboard sheet 3, a movable contact sheet 4, a spacer 5, a fixed contact sheet 6, and a reinforcing plate 7 are laminated in order from the top. That is, the keyboard sheet 3 is made by bonding a top sheet made of hard transparent vinyl chloride and a printing sheet with a transparent adhesive, and the top surface of the printing sheet has key symbols 3a... is printed. Further, on the lower surface of the movable contact sheet 4, movable contacts are printed in correspondence with the key symbols 3a, and on the upper surface of the fixed contact sheet 6, fixed contacts corresponding to the movable contacts are printed. There is. The movable contact and the fixed contact face each other through the opening of the spacer 5, and when the movable contact is pressed from above, it comes into contact with the fixed contact through the opening and becomes conductive to each other. A portion of the fixed contact sheet 6 extends to the left, and a keyboard terminal 6a is formed in this extended portion. This keyboard terminal 6a is a terminal for each contact on each of the contact sheets 4 and 6, and each contact on the movable contact sheet 4 is connected to the keyboard terminal 6a via an anisotropic connector 5a provided on the left side of the spacer 5. It has been derived.
In this case, the keyboard terminal 6a extends above the folded portion 1a of the notebook case 1. The bent portion 1a is provided in the front-rear direction of the notebook case 1, and is bent so as to protrude slightly upward and form a U-shape in cross section. Screw holes 1b are formed in this bent portion 1a except for the portion corresponding to the keyboard terminal 6a. Further, a synthetic leather 2a for protecting the keyboard terminal 6a is provided extending from the right side to the upper left side of the keyboard 2, except for the area above the bent portion 1a.

On the other hand, on the left side of the notebook case 1, a hard equipment case 8 as shown in FIG. 1 is arranged. This device case 8 has a display section 9 and an operation section 1 having push buttons 10a arranged on the top surface.
0, and a printed circuit board 11, a circuit board holder 12, and a lower panel 13 are housed inside the device case 8 in this order from the top. Above printed circuit board 1
1 is provided with an elastic sheet 11a on its upper surface that is bulged in areas corresponding to the push buttons 10a, and has a predetermined circuit pattern (not shown) formed on its lower surface. An electrode terminal 11b is formed on the electrode terminal 11b. This electrode terminal 11b
corresponds to the keyboard terminal 6a described above. Further, the board presser 12 is used to press the printed circuit board 11 from below, and a storage section 12 for storing the button type batteries 14, 14 is placed at a predetermined location thereof.
a, 12a are formed, and a storage section (not shown) for storing a memory pack 15 as shown in FIG. 3 is also formed. Above button type battery 1
4 and 14 are arranged in the storage parts 12a and 12a,
When pressed from below by the battery holding plate 16, it is electrically connected to the circuit pattern of the printed circuit board 11, and when the memory pack 15 is similarly placed in the storage section, it is connected to the circuit pattern. It is now electrically connected. Further, a notch 12b and locking holes 12c, 12c are formed at the right end of the substrate holder 12. The notch 12b is the printed circuit board 1.
The interconnector 17 is formed at a location corresponding to the first electrode terminal 11b, and the interconnector 17 is disposed at this location. This interconnector 17 electrically connects the electrode terminal 11b and the keyboard terminal 6a described above. The above locking hole 12
c, 12c are inserted by the locking parts 13a, 13a formed at the right end of the lower panel 13, and by locking the inserted locking parts 13a, 13a,
The lower panel 13 is detachably attached under the board holder 12. In this case, the left side of the lower panel 13 is removably attached to the equipment case 8 with screws 18 .

Further, the device case 8 is attached to the notebook case 1 with tightening screws 19. That is,
A presser plate 20 is arranged below the bent portion 1a of the notebook case 1, and the through holes 20a formed in the presser plate 20 are connected to the screw holes 1b of the notebook case 1, and the board presser. 12 through-holes 12d... and the through-holes 11c of the printed circuit board 11. The tightening screws 19 inserted from the lower side of the presser plate 20 through the holes 20a, 1b, 12d, and 11c are screwed into the device case 8, and the device case 8 is attached to the notebook case 1. When the device case 8 is attached to the notebook case 1 in this way, the tightening force of the tightening screws 19 connects the electrode terminals 11b of the printed circuit board 11 and the keyboard terminals 6a of the keyboard 2 to the interconnector, as shown in FIG. 17 and are pressed together, and are electrically connected to each other via this interconnector 17. In addition, the notebook case 1 has a tightening screw 19...
Therefore, the part where the equipment case 8 is attached, that is, the bending part 1a, forms a hinge shape, and by bending around this part, it can be freely opened and closed with respect to the equipment case 8, as shown in FIG. ing.

Next, a case will be described in which electronic components such as the button type batteries 14 and the memory pack 15 used in the notebook type calculator configured as described above are replaced. First, as shown in FIG. 3, bend the left side of the notebook case 1, that is, the side to which the device case 8 is attached, downwards around the folding part 1a of the notebook case 1. It is separated from the lower panel 13 attached to the equipment case 8. After that, the screws 18 shown in FIG. As shown in FIG. 3, the lower panel 13 is removed from the board holder 12. When the lid such as the battery press plate 16 is removed from the lower surface of the board press 12, electronic components such as the button type batteries 14, 14 and the memory pack 15 can be removed from the storage portions 12a. After that, the electronic parts such as the button type batteries 14, 14 and the memory pack 15 are replaced with new electronic parts, and the electronic parts are stored in the storage parts 12a of the board holder 12, and the battery holder plate 16, etc. is placed from the bottom. When pressed with the lid, each of the above-mentioned electronic components is electrically connected to the circuit pattern of the printed circuit board 11. Then, the lower panel 13 may be attached to the board holder 12 in the reverse order to the above-described procedure.

As described above, according to the notebook type calculator, the notebook case 1 is bent around the bending portion 1a of the notebook case 1, that is, the part where the device case 8 is attached by the tightening screws 19... Since the battery holding plate 16 opens and closes against the button type batteries 14, 14, memory pack 15, and other electronic components,
It is possible to provide the lid body on the lower side of the device case 8 without having to provide it on the top surface of the device case 8. Therefore, the display section 9 and the operation section 10 provided on the top surface of the device case 8
etc. are not restricted by the lid, the display section 9 and the operation section 10 can be used widely, and the electronic components can be easily and easily replaced.

In addition, in the case of the above-mentioned notebook type calculator, the printed circuit board 1 is
1 and the keyboard terminal 6a of the keyboard 2 are brought into pressure contact with the interconnector 17,
Since each terminal 11b and 6a can be electrically connected, the printed circuit board 1 of the device case 8 can be connected at the same time as the device case 8 is attached to the notebook case 1.
1 and the keyboard 2 can be electrically connected.

Furthermore, in the above-mentioned notebook type calculator, a keyboard 2 is provided on one side of the notebook case 1 which can be bent into left and right sides, the periphery of the notebook case 1 is ultrasonically welded, and then the device case 8 is attached to the other side of the notebook case 1. Therefore, there is no fear that electronic components such as the memory pack 15 inside the device case 8 will be damaged by noise caused by ultrasonic welding.

In addition, in the embodiment described above, the keyboard terminal 6
a and the electrode terminal 11b of the printed circuit board 11 are electrically connected via the interconnector 17, but the invention is not limited to this.
It may be fixed by pressure contact.

Furthermore, in the embodiment described above, the device case 8 is attached to the approximate center of the notebook case 1 with the tightening screw 19, so that the left end side of the notebook case 1 can be opened and closed with respect to the device case 8. This idea is not limited to this, for example, notebook case 1.
Tighten the left end side of the equipment case 8 with the screw 19 on the left end side of the device case 8.
The central part of the notebook case 1 may be opened and closed with respect to the device case 8. In this case, the keyboard terminal 6a may be formed to extend to the left end side of the notebook case 1, and the electrode terminal 11b may be formed at the left end side of the printed circuit board 11.

Furthermore, this invention is not limited to the notebook type calculator as described above, but can be widely applied to other small electronic devices.

[Effect of idea]

As explained above, according to the case structure of a small electronic device according to this invention, a keyboard is provided on one side of the notebook case configured to be freely foldable, and a hard device case is placed on the other side. By connecting the keyboard terminal and the electrode terminal provided at the end of the device case with a connecting means,
By connecting each case and electrically connecting each upper terminal, the notebook case can be opened and closed with respect to the device case, so the lids of electronic components such as button batteries and memory packs can be placed under the device case. Therefore, the usable area can be expanded without any restrictions on the display section, operation section, etc. of the device case, and the electronic components can be easily and easily replaced. In addition, the periphery of the notebook case can be ultrasonically welded before attaching the device case to the notebook case, which has the advantage that the electronic components inside the device case will not be destroyed by noise caused by ultrasonic welding. be.

[Brief explanation of drawings]

Fig. 1 is an exploded perspective view of the notebook-type calculator according to this invention, Fig. 2 is a sectional view of main parts of the assembled state, and Fig. 3 is a schematic side view of the notebook-type calculator when replacing electronic parts. . 1...Notebook case, 2...Keyboard, 6a...
...Keyboard terminal, 8...Equipment case, 11b...
...Electrode terminal, 19...Tightening screw.

Claims (1)

[Scope of utility model registration request] A notebook case that is configured to be foldable into two, has a keyboard on one side, and has a keyboard terminal derived from the keyboard;
an equipment case consisting of a hard case disposed on the other side of the notebook case and having an electrode terminal at an end corresponding to the keyboard terminal; and electrically connecting the terminals in correspondence with each other;
A case structure for a small electronic device, comprising a connecting means for connecting each of the above-mentioned cases in an openable and closable manner.