JPH0610432Y2 - Small electronic devices - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a small electronic device such as a card type computer.

[Prior Art] A guard-type computer is provided with a liquid crystal display panel that displays the results of calculations such as four arithmetic operations. However, in the case of a computer in which the equipment case is used sideways, this liquid crystal display panel should be easy to see. It is usually located at the longitudinal center of the equipment case. Further, the liquid crystal display panel of the card type computer is fixed to the device case by being adhered to the mounting surface by an adhesive or a double-sided adhesive tape when stored in the display panel storage portion provided in the device case. In this case, conventionally, the entire surface of the liquid crystal display panel is adhered to the mounting surface.

[Problems to be Solved by the Invention] By the way, since the card type computer is extremely thin, it is easy to bend in the longitudinal direction. When this bending occurs in a landscape type computer, the liquid crystal display panel placed in the center is naturally affected by the bending, but in the case of the structure where the entire surface of the liquid crystal display panel is adhered to the mounting surface as in the past. However, there is a fear that it may be directly affected by bending and may be damaged. In other words, when bending occurs, the device case is compressed in the bending direction, and the resulting force acts on both ends of the liquid crystal display panel in the longitudinal direction via the mounting surface.

This invention was made in view of the above circumstances,
It is an object of the present invention to provide a small electronic device devised so that the liquid crystal display panel arranged in the center portion will not be damaged even if the device is bent from the center portion.

[Means for Solving the Problems] In order to solve the above problems, the present invention provides escape grooves that are recessed from the mounting surface in the display panel housing portion of the device case corresponding to both ends of the liquid crystal display panel in the longitudinal direction. It is a thing.

[Operation] In such a configuration, both ends of the liquid crystal display panel in the longitudinal direction are not bonded to the mounting surface. Therefore, the force of the device case generated when the device is bent at the center portion is absorbed by the escape groove and does not directly act on the liquid crystal display panel adhered to the mounting surface from the mounting surface. Is free from damage.

[Embodiment] An embodiment in which the present invention is applied to a card-type electronic computer with a seal stamp will be described below with reference to FIGS. 1 to 6.

In the figure, reference numeral 1 is a card-shaped synthetic resin device case, in which a seal storage portion 3 is integrally formed on one side (right side) of an electronic component storage portion 2 having a main calculation function. The electronic component storage section 2 and the seal stamp storage section 3 are shallow recesses, and in the case of the seal stamp storage section 3, the front side of the case is open.

In the electronic component storage 2 of the device case 1, the IC chip 4,
Since the sheet-shaped circuit board 7 including the liquid crystal display panel 5 and the solar cell 6 is accommodated, the concave portion 8 in which the circuit board 7 is accommodated, the concave portion 9 in which the IC chip 4 is accommodated, the liquid crystal A recess 10 for housing the display panel 5 and a recess 11 for housing the solar cell 6 are formed. In this case, the recess 10 for accommodating the liquid crystal display panel 5 is arranged in the center of the device case 1 in the longitudinal direction, and the solar cell 6
The concave portion 11 for accommodating is disposed on one side (left side) in the longitudinal direction of the device case 1. When the liquid crystal display panel 5 and the solar cell 6 are housed in the recesses 10 and 11, they are fixed to the device case 1 by being bonded to their mounting surfaces 10a and 11a with an adhesive or the like not shown. In this case, in the concave portion 10 in which the liquid crystal display panel 5 is housed, the mounting surface 1 is provided at a portion corresponding to both longitudinal end portions 5a and 5b of the liquid crystal display panel 5.
Evacuation grooves 10b and 10c that are depressed from 0a are provided. When the circuit board 7 is fitted into the recess 8, the upper surface 7a thereof is substantially flush with the step portion 1b of the device case 1, and the transparent resin key sheet 12 is attached to the upper surface of the circuit board 7 in this state. The upper surface 12a of the key sheet 12 is flush with the upper surface 1a of the device case 1. It should be noted that a large number of fixed contacts 13 corresponding to the movable contacts 7b provided on the back surface side of the circuit board 7 are fixedly provided in the electronic component housing portion 2. Fixed contact 1
3 is made of a carbon material and is arranged in the circular recess 14. Further, the front side of the concave portion 10 in which the liquid crystal display panel 5 is housed is formed as an inclined surface 15, and when the circuit board 7 is fitted into the concave portion 8, the portion 7c connecting the liquid crystal display panel 5 is bent and its inclination. It comes into contact with the surface 15.

The seal storage part 3 of the device case 1 has a rectangular shape in the front-back direction of the device case 1 like the recess 11 of the electronic part storage part 2 in which the solar cell 6 is stored. A flat seal 16 is stored in the seal storage unit 3, a holding frame 17 for holding the seal 16 is attached, and a seal lid 18 is attached.

The stamp 16 is a rectangular parallelepiped stamp base 1 made of a synthetic resin having a cylindrical stamp main body 16a made by impregnating a coloring material such as red meat on a stamping base made of synthetic rubber or the like in which a stamp character 20 is embossed.
It is attached to 6b, and support legs 19 having the same extension length are integrally formed at the four corners of the stamp base 16b. The support leg 19 is in the form of a strip extending horizontally from the stamp base 16b, and the lower surface is substantially flush with the lower surface of the stamp base 16b. Further, a circular boss 21 whose upper surface is lower than the printing characters 20 on the upper surface of the stamp main body 16a is provided at the tip of the support leg 19. Such a stamp 16 is fitted into a recess 22 having a square cross section formed at the rear end of the stamp housing 3. In this case, the recess 22
A square through hole 23 having substantially the same size as that of the stamp base 16b is formed in the center of the concave base 22 with a deviation of 45 ° from the recess 22,
The seal 16 is fitted into the recess 22 so that the support legs 19 are located at the four corners.

The holding frame 17 is made of synthetic resin, and has a rectangular shape having the same size as the seal accommodation unit 3. Then, the step portions 24 and 24 ′ formed on both sides are provided with the grooves 25 on both sides of the seal containing portion 3,
When it is fitted into 25 ′ and slid, it is attached to the seal storage part 3. When the rear end surface 26 of the holding frame 17 comes into contact with the rear end surface 27 of the seal stamp housing portion 3, a predetermined attachment is made. At this time, the front end surface 28 of the holding frame 17 is substantially flush with the front end surface 29 of the seal stamp housing portion 3. The square-shaped convex portion 30 (FIG. 5) provided on the lower surface near the front end is the seal receiving portion 3
It is fitted and fixed in a rectangular recess 31 provided on the bottom surface of the. The convex portion 30 and the concave portion 31 are provided with inclined surfaces 32 and 33 only on the front side in order to facilitate the attachment of the holding frame 17 and prevent the retaining frame 17 from coming off, and the rear side is a vertical wall. And
In this way, the holding frame 1 attached to the seal storage unit 3
Reference numeral 7 denotes each supporting leg 1 of the seal 16 fitted in the recess 22.
The boss 21 of 9 is pressed from above and the seal 16 is held so as to be fixed in the recess 22.

The seal lid 18 is made of synthetic resin, and has a rectangular shape having a width substantially the same as the width of the window portion 34 of the holding frame 17 and a length shorter than the length of the window portion 34. Then, the holding frame 17
It is slidably attached to the window portion 34 of the. In this case, horizontal step portions 35 and 35 'are formed on both sides of the seal lid 18, and these step portions 35 and 35' are held.
It is fitted into a step portion (not shown) formed on the inner surface side of 7. At this time, the upper surface 18a of the seal lid 18 is substantially flush with the upper surface 17a of the holding frame 17, and the seal lid 18 is at the rear end 3
6 contacts the rear end 37 of the window portion 34, and the front end 38 of the window portion 34
The window portion 34 can be slid along its length in the range in which the window portion 34 abuts on the front end 39. Attach the seal cover 18 to the rear end 36
When the seal is slid so as to contact the rear end 37 of the window 34, the seal 16 supported by the holding frame 17 by the seal lid 18 is stored in the seal storage part 3.
On the other hand, when the seal lid 18 is slid so that the front end 38 contacts the front end 39 of the window portion 34, the seal lid 18 is held by the holding frame 17.
The seal 16 supported by is exposed to the outside through the window 34 of the holding frame 17.

In the card-type computer having such a configuration, when using the seal 16 stored in the seal storage unit 3,
First, as described above, the stamp cover 18 is slid so that the front end 38 contacts the front end 39 of the window 34, and the seal 16 is exposed to the outside from the window 34. After that, the upper surface 1a of the device case 1 is placed on the lower side so that the stamp 16 is placed on the document so that the stamp 16 is located at the marking position, and the through hole 23
When a finger is inserted from above and the back surface of the stamp main body 16a is pressed, the stamp 16 comes to protrude from the upper surface 1a of the device case as shown by the chain line in FIG. Is pressed against the document surface, and a seal is made by this.

The seal 16 stored in the seal storage unit 3 is usually attached when the machine (card type computer) is sold. This is to avoid this because a large amount of inventory will be required when the stamp 16 having a specific “name” is already installed in the machine. Therefore, this machine can be used in common with any "name" stamp 16 except the stamp 16, and the "name" stamp 16 of the user of the machine is attached when the machine is sold. . In this case, the seal 16 is placed in the seal storage unit 3 in the same manner as described above.
The holding frame 17 and the seal cover 18 are attached. The seal cover 18 is attached to the holding frame 17 together with the holding frame 17.

Also, the seal 16 stored in the seal storage unit 3 is not removed once it is attached at the time of selling this machine as described above, but, for example, the user of this machine has changed and the "name of this new user" is changed. When it is desired to replace the seal 16 with the seal 16, the seal 16 can be replaced by removing the holding frame 17. In this case, the holding frame 17 has the convex portion 3
Since 0 is fitted in the concave portion 31 of the seal receiving portion 3 and thus cannot be slid in the pull-out direction, the convex member 30 is detached from the concave portion 31. In this way, the holding frame 17 can be slid in the pulling-out direction and can be removed from the seal stamp housing section 3. next,
The structure for exchanging the seal 16 will be described with reference to FIGS. 5 and 6. The through hole 4 is provided at the bottom of the recess 31 of the device case 1.
0 is provided, and a recess 30a having a slightly smaller diameter than the through hole 40 is formed in the convex portion 30 of the holding frame 17 at a position facing the through hole 40. To remove the holding frame 17,
A stick-shaped stick 41 having a diameter that fits into the recess 30a is used, and the end of the stick 41 is inserted into the recess 30a of the holding frame 17 through the through hole 40. When the pushing tool 41 is pushed up from the bottom, the holding frame 17 is curved and deformed so that the central portion in the width direction becomes higher, as shown by the chain line in FIG. 6, and the bottom surface of the convex portion 30 of the holding frame 17 is raised. When reaching the position above the bottom surface 3a of the seal accommodating portion 3, the pushing tool 41 is moved in the through hole 40 toward the front end surface 29 of the device case 1. As a result, as shown in FIG.
Since the bottom surface of the convex portion 30 of the holding frame 17 rides on the bottom surface 3a of the seal receiving portion 3, after that, the projecting tool 41 can be pulled out from the through hole 40 and the holding frame 17 can be slid and removed by a finger. it can. When the holding frame 17 is removed, the seal cover 18 is also removed, and the seal 16 can be replaced.

In the case of the card type computer of the above embodiment, the device may be bent by the user's carelessness or inexperience in handling when using, mounting, or replacing the seal 16. In this case, the liquid crystal display panel 5 arranged at the center of the device case 1 in the longitudinal direction is affected by bending, but here, the recesses 10 corresponding to the longitudinal end portions 5a and 5b of the liquid crystal display panel 5 are formed. Since the escape grooves 10b and 10c that are recessed from the mounting surface 10a are provided in the structure to prevent both ends 5a and 5b of the liquid crystal display panel 5 from being adhered to the mounting surface 10a, the device case 1 caused by bending
Is absorbed by the escape grooves 10b and 10c and does not directly act on the liquid crystal display panel 5, and therefore the liquid crystal display panel 5
Can be protected from damage and will not impair the display function.

The invention is not limited to the card-type computer of the embodiment, but can be widely applied to other small electronic devices such as a thin electronic game machine.

[Effect of the Invention] As described above, the small electronic device according to the present invention is
Since the escape groove that is recessed from the mounting surface is provided in the display panel housing part of the device case that corresponds to both ends of the liquid crystal display panel in the longitudinal direction, the force of the device case generated when the device is bent by this escape groove is absorbed. Therefore, even if the device is bent, the liquid crystal display panel is protected from damage and has an advantage that the display function is not hindered.

[Brief description of drawings]

Each of the drawings shows an embodiment of the present invention. Fig. 1 is an exploded perspective view of a card-type electronic calculator with a sealant to which the present invention is applied, and Fig. 2 is an external appearance of the card-type electronic calculator with the seal cover closed. FIG. 3 is a perspective view of the external appearance of the card-type computer in which the seal cover is open, and FIG. 4 is an IV- of FIG.
FIG. 5 is an enlarged sectional view taken along line IV, FIG. 5 is an enlarged sectional view taken along line VV of FIG. 3, and FIG. 6 is an enlarged sectional view taken along line VI-VI of FIG. 1 ... Equipment case, 5 ... Liquid crystal display panel, 5a, 5b
...... Longitudinal end of liquid crystal display panel, 10 ...... recessed portion (display panel storage section), 10a ...... mounting surface, 10b, 1
0c ... Escape groove.

Claims (1)

[Scope of utility model registration request] 1. A small electronic device in which a liquid crystal display panel is adhered to a mounting surface of a display panel housing provided in a device case and fixed to the device case, wherein the liquid crystal display panel corresponds to both longitudinal ends of the liquid crystal display panel. A small electronic device comprising an escape groove that is recessed from the mounting surface in the display panel housing portion of the device case.