JP2510096Y2 - Portable thin electronic device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to a portable thin electronic device such as an electronic desk calculator.

[Prior Art and its Problems] In recent years, electronic devices such as calculators (electronic desk calculators) have become smaller, lighter and thinner with the rapid development of electronic technology. Therefore, small electronic devices such as calculators can be easily carried by being stored in pockets or the like anytime and anywhere. Recently, various technologies have been proposed in which a portable thin electronic device is provided with a function other than its original function by effectively utilizing the characteristic that it can be easily carried. As the calculator, for example, there is a calculator provided with a writing instrument such that a calculation result such as four arithmetic operations can be immediately recorded, such as a notebook calculator disclosed in Japanese Utility Model Laid-Open No. 57-140451.

However, although the above notebook type calculator has the convenience of being able to record the calculation results immediately, it is a thick type because it is constructed by stacking the calculator section and the notebook cover, many paper pieces, and the back cover. As a result, there is a drawback in that the characteristics of the calculator, which is thinned so as to be convenient for carrying around, is deteriorated.

[Object of the Invention] The present invention has been made in view of the above-described circumstances, and an object thereof is to provide a portable thin electronic device devised so that a writing instrument can be provided without lowering the thinning characteristics. To provide.

[Summary of the Invention] In order to achieve the above-mentioned object, the present invention forms a thin pen inside the pen housing part by forming a pen housing part recessed from the back surface on a part of the back surface of the device body. The main point is that it is detachably stored.

[Embodiment] An embodiment in which the present invention is applied to a card type calculator will be described below with reference to FIGS. 1 to 8.

In the figure, reference numeral 1 denotes a device body made of a hard synthetic resin, which is composed of an upper case 2 and a lower case 3.
A calculator function unit 4 is incorporated in the lower case 3, and a plate-shaped thin pen (here, a ballpoint pen, but may be a mechanical pencil) 5 is incorporated in the lower case 3.

The upper case 2 has a structure in which a rectangular frame is formed and a projecting strip 7 is formed along the peripheral edge of the lower surface 6 along the rectangular periphery. Then, as shown in FIGS. 7 and 8, the calculator function unit 4 is press-fitted into the rectangular window portion 8 formed by forming the frame shape, and is surrounded by the protrusion 7 on the lower surface 6. As shown in FIGS. 9 and 10, the lower case 3 is press-fitted and fitted into the recessed portion.

The calculator function unit 4 includes a circuit board 11 electrically connecting a liquid crystal display panel 9 for displaying a calculation result and the like to a solar cell 10 with a flexible connector (not shown) and contact points (not shown) of the circuit board 11. Many key display according to
The upper surface sheet (key sheet) 13 made of soft synthetic resin is printed and formed on the upper surface of the circuit board 11.

As shown in FIGS. 11 to 13, the lower case 3 has a plate-like shape and has a pen storage portion 14 which is parallel to the longitudinal direction on one side (the lower side in the drawing), and the pen storage Pen storage part with a predetermined interval on both sides of part 14
Slits 15 and 16 parallel to 14 are formed. The pen storage portion 14 is for inserting and storing a thin pen 5 described below from the lower surface side of the lower case 3, and is formed from near one end of the lower case 3 (left end in the drawing) to the other end (right end in the drawing). Has been done. The pen shaft portion of the thin pen 5 is located on one end side of the lower case 3 of the pen storage portion 14, and the rear end of the holder of the thin pen 5 is located on the other end side of the lower case 3, and the part on which the rear end of the holder is located. Except for the above, the through hole is formed, and the portion where the rear end of the holder is located is formed as a groove 17 leaving a predetermined thickness. FIG. 14 shows such a pen storage unit 14 and slits 15 and 16
The relationship with and is expanded and shown. The slits 15 and 16 are formed over substantially the entire area of the penetrating hole portion of the pen housing portion 14, so that both side walls 18 and 19 of the pen housing portion 14 have elasticity. In this way, the ridges 20 having a predetermined length are provided on both sides of the pen storage portion 14 where the side walls 18 and 19 have elasticity.
21 are formed. As described above, the lower case 3 is press-fitted into the portion of the lower surface 6 of the upper case 2 surrounded by the protrusion 7, and in this case, the lower case 3 has both side walls 18 and 19 portions. The remaining portion is fixed to the lower surface of the upper case 2 with an adhesive (not shown).

As shown in FIGS. 15 to 17, the thin pen 5 comprises a plate-shaped holder 22 and a pen shaft 23 inserted into a hole (not shown) formed at the tip of the holder 22. A groove 24 having a predetermined width is formed on the upper surface of the rear end portion of the holder 22, and the recesses 2 having a predetermined length are formed on both side portions of the holder 22 at substantially the center.
5, 26 are formed. As described above, such a thin pen 5 is fitted into the pen housing portion 14 from the lower surface side of the lower case 3, but at this time, the groove 24 of the holder 22 is placed in the lower case 3.
The recesses 25 and 26 are fitted into the ridges 20 and 21 of the pen storage portion 14 while being fitted into the bridge portion 27 which is located in the groove 17 portion and left in the lower case 3. In this case, the outer dimensions of the holder 22 are substantially the same as the inner dimensions of the pen storage portion 14, and the recesses 25 and 26 are made elastic by the slits 15 and 16 provided in the lower case 3. Both sidewalls 18,
19 can be easily fitted into the ridges 20 and 21 in order to expand the pen storage portion 14 in the width direction, and after the fitting, both side walls 18 and 19 are elastically restored so that the engaged state is surely maintained. In this way, when the thin pen 5 is stored in the pen storage portion 14, the lower surface of the holder 22 is flush with the lower surface of the lower case 3. Further, when the thin pen 5 is stored in the pen storage portion 14, a vertically upward protruding portion 28 at the rear end of the holder 22 has a notch provided on one side of the upper case 2 as shown in FIG. The thin pen 5 can be easily removed from the pen storage portion 14 by pressing the head of the protrusion 28 fitted in the notch 29 into the notch 29.

The holder 22 of the thin pen 5 is composed of a single plate made of hard synthetic resin.
22 ', two upper and lower plates made of hard synthetic resin
There is also a structure in which a'and 22b 'are superposed and adhered. In this case, when the two plates 22a' and 22b 'are superposed, the pen shaft 23 is formed with a pen shaft concave portion (not shown) at the tip. Hold in the part where it is. The figure shows a cross section of a portion corresponding to the recesses 25 and 26.

In the calculator having such a structure, by using the thin pen 5 stored in the pen storage portion 14, the calculation results such as the four arithmetic operations performed in the calculator function portion 4 can be immediately recorded, but in this case, The thin pen 5 includes the calculator function unit 4 and the device body 1 in the thinned device body 1.
Since it is stored without affecting the thickness of the calculator, the characteristics of the calculator that is made thinner than in the prior art (the technology disclosed in the above publication) is not deteriorated. In addition, the thin pen 5 is provided with the ridges 20 and 21 and the recesses 25 and 26 when the thin pen 5 is accommodated in the pen accommodating portion 14 by the side walls 18 and 19 elastically provided by the slits 15 and 16 of the lower case 3. Since the engagement is easy and reliable, the lower case 3 can be stored without providing a cover (cover) or the like after storage. Further, since the thin pen 5 stored in the pen storage portion 14 is stored without the lid body and the like according to the above configuration, the pen 28 can be easily pushed down by pressing the projection 28 at the rear end of the holder 22. It can be removed from the storage unit 14 for use.

The invention is not limited to the calculator shown in the embodiments, but can be widely applied to other portable thin electronic devices such as thin card radios, IC cards, and card clocks.

[Effects of the Invention] As described above, in the portable thin electronic device according to the present invention, the pen housing portion recessed from the back surface is formed in a part of the back surface of the device body. Since the thin pen is detachably accommodated, there is an advantage that a writing instrument (pen) can be provided without deteriorating the characteristics of the thinned electronic device.

BRIEF DESCRIPTION OF THE DRAWINGS The drawings each show an embodiment of the present invention, FIG. 1 is an exploded perspective view of a calculator to which the present invention is applied, FIG. 2 is a plan view of the same calculator, and FIG. 3 is the same calculator. 4 is a bottom view of the calculator, FIG. 4 is a front view of the calculator, FIG. 5 is a left side view of the calculator, FIG. 6 is a right side view of the calculator, and FIG. 7 is a sectional view taken along line AA of FIG. 8 is a sectional view taken along the line BB of FIG. 2, FIG. 9 is a bottom view of the calculator with the thin pen removed, and FIG. 10 is a sectional view taken along the line CC of FIG. 9 and FIG. Is a plan view of the lower case that constitutes the main body of the calculator, FIG. 12 is a sectional view taken along the line DD of FIG. 11, FIG. 13 is a right side view of the lower case, and FIG. 14 is E of FIG. -E line enlarged sectional view, FIG. 15 is a plan view of the thin pen, FIG. 16 is a front view of the thin pen, FIG. 17 is a right side view of the thin pen, and FIG. 18 is a holder of the thin pen. It is sectional drawing which showed the modified structure. 1 ... Device body, 2 ... Upper case, 3 ... Lower case, 5
...... Thin pen, 14 ...... Pen storage section.

Claims (1)

(57) [Scope of utility model registration request] 1. A pen storage portion, which is recessed from the back surface, is formed in a part of the back surface of the device body, and a thin pen is detachably stored in the pen storage portion. Portable thin electronic devices that