JPH035954Y2 - - Google Patents

Description

[Detailed explanation of the idea] [Technical field of invention] This invention relates to small electronic devices.

[Background of the idea]

In recent years, handy-type terminals have been developed for use in providing information, collecting information, etc., but these terminals are equipped with numerical keys, operation keys such as four arithmetic operations and special operations, alphanumeric keys, katakana keys, etc. Many input keys are required. For this reason, even though it was called a handy type, it was quite large and had the disadvantage of being inconvenient to carry.

[Purpose of invention]

This idea was made in consideration of the above-mentioned circumstances, and it is possible to use electronic memo functions such as providing information and collecting information without reducing the number of types of input keys.
To provide a compact electronic device that can be configured compactly and is convenient to carry.

[Key points of the idea]

In order to achieve the above-mentioned objects, this invention provides a first key operation part in the case body, and attaches a lid case that covers at least this first key operation part to the case body so as to be openable and closable. A second key operation section is provided on a side of the lid case opposite to the first operation section, and a support member is provided to support the lid case at a predetermined position when the lid case is opened from the first key operation section. The second key operation section is attached to the case body, and when the lid case is supported by this support member, the second key operation section can be operated for input.

〔Example〕

An embodiment of this invention will be described below with reference to the drawings.

Figures 1 and 2 show a small electronic device; Figure 1 is an external perspective view with the lid case closed;
The figure is an external perspective view in an open state. This small electronic device 1 performs calculations and displays in response to key input operations, and provides and collects information. A first key operation section 3 and a display section 4 are provided at the top of the case body 2. At the same time,
A lid case 5 covering the first key operation section 3 is attached so as to be openable and closable. The first key operation section 3 is a main keyboard section that performs calculation functions, and key tops 3a such as numeric keys, operation keys such as four arithmetic operations and special operations are arranged on the top surface of the case body 2, and a power switch. 3b is provided. The display section 4 displays calculation information such as calculation data and calculation results, and also displays various information, and is capable of displaying 16 digits and 4 lines. The lid case 5 covers the first key operation section 3 to protect the key tops 3a, and is rotatably attached to the upper right end of the case body 2 via hinges 6, 6. Further, the lid case 5 is provided with a second key operating section 7 on the side facing the first key operating section 3 . This second key operation section 7 is an auxiliary keyboard section that performs various functions, including alphanumeric keys, katakana keys, special operation keys such as addition and subtraction of rows and columns, functions, etc., and instructions for inputting and outputting electronic memos. It is provided with various keys such as a function key, and is replaceably attached to the lid case 5, and a connecting portion 8a of a flexible board 8, which will be described later, is connected to a predetermined electronic circuit within the case body 2. On the other hand, the case body 2 consists of an upper case 2a and a lower case 2b, and as shown in FIG.
Support members 9, 9 for supporting the lid case 5 are attached to the side wall to which the lid case 5 is rotatably attached, as will be described later.

Figure 3 shows the inside of the case body 2 -
FIG. Inside the case body 2, a keyboard board 10 and a main circuit board 11 of the first operating section 3 are supported vertically by support columns 12, 12. A spacer 1 is provided on the top surface of the keyboard board 10.
A movable contact film 14 is laminated via the movable contact film 14, and a key sheet 15 is disposed on the movable contact film 14. In this case, a pair of fixed contacts 10a corresponding to the key tops 3a are formed on the upper surface of the keyboard substrate 10, and a pair of fixed contacts 10a corresponding to the key tops 3a are formed on the lower surface of the movable contact film 14. Contact points 14a... are formed. Also, key sheet 1
5 has a bulging key top 3a projecting from the upper surface of the case body 2. Therefore, when the key tops 3a... are pressed, the movable contact film 14 is pushed down, the movable contacts 14a... come into contact with the fixed contacts 10a... of the keyboard board 10 through the openings of the spacer 13, and the fixed contacts 10a... are electrically connected. . Note that a connector 10b is provided on the bottom surface of the keyboard board 10. This connector 10
b is connected to a connecting portion 8a of a flexible substrate 8 of a second key operation section 7, which will be described later. Further, the main circuit board 11 controls the circuit of the entire device, and is provided with electronic components 11a such as LSI. Furthermore, a shield plate 16 is provided inside the case body 2 at its bottom. This shield plate 16 is arranged so as to surround the keyboard board 10 and the main circuit board 11, and a part of it comes into contact with a metal decorative panel 17 provided on the upper surface of the case body 2 by means of a coil spring 16a. 17 contacts the electrode terminal 10c of the keyboard board 10 via the coil spring 16b, thereby protecting the keyboard board 10 and the main circuit board 11 from being affected by static electricity.

On the other hand, as will be described later, the lid case 5 consists of an upper case 18 and a lower case 19, and has a second case inside.
A keyboard section 20 and a key sheet 21 constituting the key operation section 7 are arranged in a stacked manner. In this case, the keyboard section 20 is made by bending a single flexible substrate 8 in the form of a film, and inserting spacers 2 in between.
2 are arranged, and contacts 8b are formed on the surfaces facing each other through the opening of the spacer 22. Further, a part of the flexible board 8 is extended from the lid case 5 into the case body 2, and this extended connection part 8a is connected to the connector 10b of the keyboard board 10 mentioned above, and is removed by screws 23. The keyboard board 10 can be attached to the keyboard board 10.

4 and 5 show the support members 9, 9 that support the lid case 5, FIG. 4 is an exploded perspective view of the main part, and FIGS. 5(a) to 5(c) are sectional views of the main part. be. The support members 9, 9 each have a plate shape, and the case body 2
is rotatably attached to the side wall of the
It is stored in a folded manner in a storage part 24 formed on the side wall of the case body 2, and is pushed out from inside the storage part 24 in conjunction with the opening operation of the lid case 5, and is located at a position approximately perpendicular to the side wall of the case body 2. The lid case 5 is rotated to support the lid case 5. That is, each end of the supporting members 9, 9 is connected to a boss portion 24 formed at both ends of the storage portion 24 by pins 25, 25.
a (one not shown) is rotatably attached to hole 24b. In this case, coil springs 26, 26 are attached to the pins 25, 25, respectively, and the E-ring 25
a, 25a, one end of each of the coil springs 26, 26 comes into contact with the wall surface of the storage section 24, and each other end comes into contact with the inner surface of the support members 9, 9, so that the support members 9, 9 It is designed so that it is always pushed out from inside the storage section 24. Further, the supporting members 9, 9 are folded and stored in the storage portion 24, and an engaging protrusion 9a is formed on the outer supporting member 9, and this engaging protrusion 9a can be locked by a locking device 27. As a result, it is stored and held in the storage section 24. That is, the locking device 27 is arranged so as to be movable up and down in a recess 28 formed in the side wall of the case body 2, and locks the engagement protrusion 9a of the support member 9.
The lock is released in conjunction with the opening operation of the lid case 5, and has a rectangular frame 27a, with a flange 27b at the top and a locking portion 27c at the middle. However, there are hooks 27d, 2 at the bottom of both ends.
7d are formed integrally with each other, and a coil spring 29 is attached to the center of the lower part. The hooks 27d, 27d fit into holes 28a, 28 formed in the recess 28 of the case body 2, as shown in FIG. 5(a).
The coil spring 29 is inserted into the frame 27a and locked to prevent the frame 27a from coming off upward.
It is arranged between the lower part of the frame 27a and the bottom 28b of the recess 28, and constantly pushes the frame 27a upward. Further, as shown in FIG. 5(b), the intermediate locking portion 27c removably locks the engaging protrusion 9a of the support member 9, and the engaging protrusion 9a engages with the recess 2.
8, it goes down once and is inserted into the hole 9b of the engagement protrusion 9a, thereby locking the engagement protrusion 9a. Furthermore, as shown in FIG. 5(c), the upper flange portion 27b is pushed down by the opening operation of the lid case 5, and the frame body 27a is pushed down against the coil spring 29, and the engagement projection by the locking portion 27c is pushed down. This is to release the lock of 9a. When the locking of the engagement protrusion 9a by the locking portion 27c is released in this way, the support members 9, 9 are pushed out from inside the storage portion 24 by the coil springs 26, 26 attached to the pins 25, 25, and the case It rotates to a position substantially perpendicular to the side wall of the main body 2, and supports the lid case 5 as shown in FIG. In this case, a contact portion 9c is formed at the lower part of each tip of the support members 9,9. This contact portion 9c is formed at the same height as the lower surface of the case body 2, and supports the lid case 5 without wobbling when placed on a desk or the like. . In addition, as shown in FIG. 4, collar portions 27b are fitted into the wall surface between the storage portion 24 that stores the support members 9, 9 and the recess portion 28 where the locking device 27 is placed, so that the locking device 27 can be moved up and down. A notch 28c into which the engaging protrusion 9a of the support member 9 is removably inserted, and a notch 28e into which the locking portion 27c is fitted and moves up and down are each formed in a stepped shape. Furthermore, an insertion opening 30 is formed in the upper part of the storage section 24. This insertion slot 30 connects a part of the flexible board 8 of the second key operation section 7 to the case body 2.
It leads inward.

FIG. 6 shows the lid case 5 and the second key operation section 7.
FIG. As described above, the lid case 5 has the second key operation unit 7 replaceably arranged therein, is rotatably attached to the case body 2 by hinges 6, 6, and has an upper case 18 and a lower case. It consists of 19. Lower case 1
Reference numeral 9 has a keyboard section 20 and a key sheet 21 constituting the key operation section 7 disposed therein, as well as an upper case 18, which is rotatably attached to the case body 2, with a hinge at the left front and rear ends. 6, 6 boss portions 19a, 19a are formed, and protrusions 19b... are formed on the bottom surface at the four corners,
Locking grooves 19c are formed on the inner wall surface, and a notch 19d is formed in the middle between the bosses 19a and 19a. As mentioned above, the keyboard section 20 is made by bending the flexible substrate 8 and arranging the spacer 22 between them, a part of which extends to the left to become the connection section 8a, and is bent and overlapped. Holes 8c that penetrate vertically are formed in the ivy portion to correspond to the protrusions 19b of the lower case 19. Therefore, the keyboard part 20 is arranged on the bottom surface of the lower case 19, and the protrusions 19b are fitted into the respective holes 8c for positioning, and the extended connecting parts 8a
is led out through the cutout 19d of the lower case 19. In this case, a shield material 20a is provided on the outer surface, that is, the upper and lower surfaces, of the keyboard portion 20, except for the tip of the connecting portion 8a. This shielding material 20a is made by vapor-depositing copper on the outer surface of the keyboard part 20 and coating carbon thereon.
3 is inserted and connected to the keyboard board 10 by this screw 23 (see Fig. 3), and the keyboard part 2
0 is grounded to protect it from being affected by static electricity. Further, the key sheet 21 is a film-like material disposed on the upper surface of the keyboard section 20, and each contact point 8b of the keyboard section 20 is attached to the upper surface of the key sheet 21.
Key symbols 21a... are printed corresponding to.... Further, the upper case 18 is a flat plate made of synthetic resin, and has an opening 18a in the center through which the key symbols 21a are exposed, protrusions 18b on the sides, and a key sheet 2.
1 is pressed down from above and placed in the lower case 19, and each protrusion 18b is fitted into the locking groove 19c of the lower case 19 and attached. Therefore, the lid case 5 curves the lower case 19, and in this state, the keyboard part 20 and the key sheet 21 are placed inside one another, and the protrusions 19 of the lower case 19 are inserted into the holes 8c of the keyboard part 20.
b... to position the keyboard section 20,
After that, if the keyboard part 20 and the key sheet 21 are pressed from above by the upper case 18 and the projections 18b of the upper case 18 are inserted into the locking grooves 19c of the lower case 19, the lower part can be pressed without using a tightening member. Upper case 18 is attached and assembled by pressing keyboard section 20 and key sheet 21 onto case 19. Furthermore, when disassembling the lid case 5, the upper case 18 can be removed by bending the lower case 19, and the keyboard section 20 and key sheet 21 can be replaced.

FIG. 7 is a plan view of the keyboard section 20 with the flexible substrate 8 expanded. That is, the flexible substrate 8 is bent along the bending line 8e,
They overlap as mentioned above. In this case, a large number of electrodes 8f are formed vertically above the bending line 8e, and a large number of electrodes 8g are formed horizontally below the bending line 8e.
...is being formed. Each of these electrodes 8f..., 8g
... are respectively led out to electrode terminals 8h of the connection portion 8a through leads. In addition, each electrode 8f
. . , 8g . . . when the flexible substrate 8 is bent, are spaced apart from each other vertically and intersect with each other, thereby forming contacts 8b . . . in a matrix.

However, according to the small electronic device 1 configured as described above, the first key operation section 3 is provided at the upper part of the case body 2, and the lid case 5 covering the first key operation section 3 can be rotated. is attached to the case body 2, and the first key operation section 3 is attached to the lid case 5.
The support members 9, 9 are attached to the case so that the second key operation section 7 facing the key operation section 7 is replaceably attached, and the support members 9, 9 that support the lid case 5 in a predetermined position when the lid case 5 is opened from the first key operation section 3 are attached to the case. Since it is installed so that it can be stored in the main body 2, the number of types of input keys is not reduced, and the entire device can be configured compactly, making it convenient to carry. In particular, since the supporting members 9, 9 that support the lid case 5 are housed in the case body 2, portability is good, and when in use, the lid case 5
In conjunction with the opening operation of the case body 2, the case body 2 is pushed out from inside the storage part 24, rotates to a predetermined position, that is, a position approximately perpendicular to the case body 2, and can support the lid case 5. The lid case 5 can be supported well without being rotated more than necessary. Therefore, the lid case 5 does not rattle when the second key operation section 7 is operated, so that key operations can be performed satisfactorily. Also, the second
Since the key operation unit 7 is replaceably attached to the lid case 5, it can be replaced as needed, and the types of input keys can be increased.

In the above embodiment, the lid case 5 covers the first key operation section 3, but the present invention is not limited to this, and may also cover the display section 4. The opening/closing mechanism of the lid case 5 is not limited to the hinges 6, 6, but may be covered with leather or the like and connected in an openable/closable manner.

Further, the display section 4 does not need to be provided on the case body 2 and may be provided on the lid case 5, and the supporting members 9, 9 do not need to be linked to the opening operation of the lid case 5.

Further, although the above-mentioned embodiment has been described in the case where it is applied to a small electronic device as a handy type end device, this invention is not limited to this in any way, and can be applied to a scientific calculator, a calculator with a clock, an electronic telephone directory, etc.
It can be applied to various small electronic devices such as electronic game machines.

[Effect of idea]

As explained above, according to the small electronic device of this invention, the case body is provided with a first key operation section, and a lid case that covers at least the first key operation section is attached to the case body so as to be openable and closable. The lid case is provided with a second key operation section that faces the first key operation section, and a support member that supports the lid case at a predetermined position when the lid case is opened from the first key operation section is provided. Since it is attached to the case body and the lid case is supported by this support member, the keys of the second key operation section can be operated, so the entire device can be configured compactly without reducing the types of input keys. This makes it extremely convenient to carry, and when the lid case is supported by the support member, input operations on the second key operation section are possible.
This has the advantage that key operations can be performed smoothly without the lid case rattling.

[Brief explanation of drawings]

Figures 1 and 2 show a small electronic device of this invention. Figure 1 is a perspective view of the exterior with the lid case closed, Figure 2 is a perspective view of the exterior with the lid case open, and Figure 3 is a perspective view of the exterior with the lid case open. is a cross-sectional view taken along the line -- in FIG. 2 showing the inside, FIG. 4 is an exploded perspective view showing the structure of the support member, FIGS. 5(a) to (c) are sectional views of the main parts, and FIG. FIG. 7 is an exploded perspective view of the case and the second key operation section, and a plan view of the second key operation section with the flexible board expanded. 1...Small electronic device, 2...Case body, 3...
...First key operating section, 4... Display section, 5... Lid case, 7... Second key operating section, 9... Supporting member, 24... Storage section, 25... Pin, 27... Locking device.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) In a small electronic device that performs calculations, displays, etc. in response to key input operations, a
a key operation section, and at least the first key operation section.
A lid case that covers the key operation section is attached to the case body so as to be openable and closable, and a second key operation section is provided on the side of the lid case opposite to the first key operation section, and the lid case is attached to the case body so as to be openable and closable. A support member that supports the lid case at a predetermined position when opened from the first operation portion is attached to the case body, and input operation is performed using the second key operation portion while the lid case is supported by the support member. A small electronic device that is characterized by the following: (2) The small electronic device according to claim 1, wherein the support member is rotatably attached to the case body. (3) A utility model registration request characterized in that the support member has a plate shape, is housed in a side surface of the case body, and rotates at a position substantially perpendicular to the case body to support the lid case. range 2nd
Small electronic equipment as described in section. (4) The small electronic device according to claim 1, wherein the support member is rotated to a support position of the lid case in conjunction with the operation of opening the lid case.