JPH06110580A - Compact electronic equipment - Google Patents

Abstract

PURPOSE:To provide the compact electronic equipment which can easily operate a lock lever and can prevents the closing of a shutter from being missed although the shutter is provided for covering the lock lever. CONSTITUTION:A lock mechanism 200 is provided with a lock lever 201 turnably pivotally supported by an enclosure in a direction to approach/separate a battery pack 50. The lock lever is energized in a certain direction so as to hang an engaging piece to the battery pack by a spring. On a peripheral wall 5b of the enclosure, a window part 213 is provided for exposing the pressing piece of the lock lever. The enclosure is provided with a shutter 215 which can be slid over a position to close the window part and a position to open the window part and is always pressed to the closing position by the spring. This shutter is provided with an edge part for hanging the tip part of the pressing piece when it is slid at the opening position.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a small electronic device such as a book-type personal computer or a word processor, and more particularly to a lock structure for parts such as a battery pack which is detachably housed in its housing.

[0002]

2. Description of the Related Art Recently, various book-type or notebook-type personal computers in which a keyboard and a flat panel type display unit are attached to a base unit having a flat box shape are provided.

This kind of personal computer is equipped with a rechargeable battery pack which acts as a driving power source so that it can be used even in a place where a commercial power source cannot be obtained. The battery pack is detachable from the base unit because it needs to be replaced with a new battery pack when the charging function deteriorates due to long-term use.
Therefore, the conventional computer has a storage space for storing the battery pack inside the base unit. The storage space is provided with a lock mechanism that locks the battery pack in the storage space and stores the lock manually.

This lock mechanism has a knob that an operator can operate with his / her fingertip. The knob is exposed on the side surface or the bottom surface of the base unit, and by sliding the knob with a fingertip, the lock of the battery pack is released and the battery pack can be pulled out from the base unit.

[0005]

However, when the knob is exposed to the outside of the base unit, the operability of the knob is good, but since the fingertip easily touches the knob, the knob is mistakenly touched. There is a risk of moving it.

As a countermeasure against this, it is possible to provide a cover on the base unit to cover the knob. However, according to this configuration, it is necessary to remove the cover when operating the knob or hold the cover at a position where the knob is exposed, which causes a problem that the operation of the knob takes two steps.

Further, after the unlocking of the battery pack is completed, it is necessary to return the cover to its original position or attach it to the base unit, which makes the work troublesome. Moreover, if the cover is not attached after the lock is released, there is a problem that the knob remains exposed and erroneous operation cannot be prevented.

The present invention has been made in view of the above circumstances, and despite the provision of the shutter for covering the lock lever, the lock lever can be easily operated, and further, after the lock lever is operated, An object of the present invention is to provide a small electronic device in which the holding of the shutter is released at the same time when the fingertip is released from the lock lever, and the shutter is not forgotten to be closed.

[0009]

In order to achieve the above object, a small electronic device according to a first aspect of the present invention has a casing having a peripheral wall and a storage space inside which is surrounded by the peripheral wall. The housing includes a storage component that is removably stored in the storage space of the housing, and a lock mechanism that locks the storage component stored in the storage space and is capable of artificially releasing the lock.

The lock mechanism includes a lock lever pivotally supported by the housing in a direction in which the lock mechanism is moved toward and away from the storage component, and the lock lever is removably engaged with the storage component. And a pressing piece that extends to the opposite side across the pivot point of the lock lever. The lock lever stores the engaging piece by the first spring. The peripheral wall of the housing has a window portion for exposing the pressing piece while being constantly biased in the direction of being caught by the component, and the housing has a window portion and the pressing piece of the lock lever. Is slidable between a closed position which is interposed between the window part and the closing part to close the window part, and an opening position which is separated from the window part and the pressing piece to expose the pressing piece to the window part, and , Always urged by the second spring toward the closed position The shutter is characterized in that the shutter has an edge portion with which the tip end portion of the pressing piece is caught when the shutter is slid to the open position against the second spring. There is.

[0011]

[Operation] When the storage component is stored in the storage space in such a configuration, the engaging portion of the lock lever is caught in the storage component, and the storage component is locked in the storage space so that it cannot be pulled out. To unlock this storage part,
First, insert your fingertip into the window and slide the shutter toward the open position. When the shutter is slid to the open position, the shutter is released from the lock lever pressing piece. At this time, since the lock lever is rotationally biased by the first spring, the lock lever is further rotated by the release of the shutter, and the tip end of the pressing piece of the lock lever faces the edge of the shutter. To meet each other.
Since the shutter is biased toward the closed position by the second spring, when the hand is released from the shutter, the edge of the shutter is caught by the tip of the pressing piece and the shutter is held at the open position. .

Therefore, the window portion is opened, and the pressing piece of the lock lever is exposed to the outside of the housing through the window portion.

Next, the pressing piece exposed in the window is pressed with a fingertip. Then, the lock lever is rotated against the biasing force of the first spring in the direction opposite to the biasing direction, and the engagement piece of the lock lever is disengaged from the storage member. By this detachment, the lock of the storage member is released, and the storage member can be freely removed from the storage space.

When the pressing piece is pressed, the tip of the pressing piece is also detached from the edge of the shutter, so that the holding of the shutter is released at the same time. Therefore, when the fingertip pressing the pressing piece is pulled out from the window and the pressing of the pressing piece is released, the shutter is forcibly pushed toward the closed position by the second spring to close the window.

[0015]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below based on an embodiment shown in the drawings.

FIG. 4 shows an A4 size book-type personal computer 1. This computer 1
Includes a base unit 2 having a flat box shape and a flat panel type display unit 3.

A housing 4 forming an outer shell of the base unit 2.
As shown in FIG. 1, is divided into two, a bottom case 5 having an open upper surface and a top cover 6 that covers the upper opening of the bottom case 5. The bottom case 5 and the top cover 6 are made of a synthetic resin material such as ABS resin.

As shown in FIG. 3, the bottom case 5 has a flat bottom wall 5a and a peripheral wall 5b connected to the bottom wall 5a. In addition, the top cover 6 has a substantially flat upper wall 6a.
And a peripheral wall 6b continuous with the upper wall 6a. The peripheral wall 6b of the top cover 6 is the peripheral wall 5b of the bottom case 5.
The peripheral walls 5b and 6b form a front surface, left and right side surfaces, and a rear surface of the housing 4.

In the front half of the upper wall 6a of the top cover 6,
The keyboard outlet 7 is opened. The keyboard outlet 7 has a size that covers substantially the entire front half of the upper wall 6a. A convex portion 8 is formed at the rear end of the rear half of the upper wall 6a. The convex portion 8 extends over the entire width of the top cover 6, and leg mounting portions 10a and 10b formed of depressions are formed at both left and right ends of the convex portion 8. Openings 11a and 11b that open toward the inside of the housing 4 are formed at the bottoms of the leg attachment portions 10a and 10b.

As shown in FIGS. 3 and 4, a keyboard device 13 is incorporated in the front half of the housing 4. The keyboard device 13 includes a keyboard body 14 made of synthetic resin. The keyboard body 14 has a rectangular plate shape that fits inside the keyboard outlet 7.
The keyboard body 14 has a flat upper surface and a lower surface,
A large number of keys 15 are arranged on this upper surface. A reinforcing plate 17 made of aluminum is superposed on the lower surface of the keyboard body 14 with a film 16 interposed therebetween. On the film 16, a circuit pattern (not shown) for guiding switching input by key operation is printed. Reinforcing plate 17
Has a rectangular plate shape having the same size as the keyboard body 14. This reinforcing plate 17 is a keyboard body 14
At the same time as the above-mentioned reinforcement, it has a shield function for preventing switching noise due to key operation from leaking into the housing 4. In such a keyboard device 13, the keys 15 are exposed on the upper surface of the housing 4 through the keyboard outlet 7 and the reinforcing plate 17 is exposed inside the housing 4.

As shown in FIG. 6, the display unit 3 includes a thin box-shaped housing 20 and a liquid crystal display 21 housed in the housing 20. The housing 20 is divided into a front panel 20a and a rear panel 20b, and a display window 22 for exposing the liquid crystal display 21 is formed in the front panel 20a. The left and right ends of the housing 20 are provided with pivoting leg portions 24 and 25, respectively. Pivot leg 2
As shown in FIG. 6 as a representative of one leg portion 24, the reference numerals 4 and 25 are front leg portions 2 continuous with the front panel 20a.
4a and a rear leg portion 24b continuous with the rear panel 20b are abutted against each other. And the leg 2 for pivotal support
4, 25 enter the leg mounting portions 10a, 10b,
Each is connected to the bottom case 5 of the housing 4 via a hinge device 26.

The hinge device 26 is provided with a hinge shaft 27 protruding from the side surface of the pivot support leg 24, as shown in FIG. The hinge shaft 27 is used for the pivot support leg portion 2.
It is fixed to a bracket (not shown) housed in the housing 4, and the other end of the hinge shaft 27 is connected to another bracket 28 so as to be rotatable about its axis. A wave washer 29 is interposed between the bracket 28 and the hinge shaft 27. Wave washer 29
Provides a frictional resistance between the bracket 28 and the hinge shaft 27, and the presence of this frictional resistance causes the hinge shaft 2 to move.
Free rotation of 7 is restricted. The bracket 28 is
It is inserted into the bottom case 5 from above the bottom case 5, and is fixed to the rear surface thereof with screws 23.

For this reason, the hinge shaft 27 serves as a pivotal fulcrum of the display unit 3, and the display unit 3 has the first position for covering the keyboard device 13 and the liquid crystal display 21 behind the keyboard device 13. 2nd position to stand up and the liquid crystal display 21
Can be rotated to a position opposite to the keyboard device 13 to a third position in which it is tilted to an angle close to horizontal. Then, as shown in FIG. 5, when the display unit 3 is rotated to the second position, the housing 20 of the display unit 3 is flush with the front and side surfaces of the housing 4 and the convex portion 8. The computer 1 has a flat box shape that is convenient for carrying.

The top cover 6 is the bottom case 5
The display unit 3 attached to the bottom case 5 is detachably covered on the bottom case 5 in a state of being rotated to the third position. Thereby, the hinge device 2
6 is covered by the convex portion 8 of the top cover 6, and apparently the pivot support leg portions 24, 25 are the leg attachment portions 10a, 1
It goes into 0b.

By the way, as shown in FIG. 2, in the front half of the bottom case 5, from the right side to the left side, a floppy disk drive device 30 (hereinafter referred to as FDD), a hard disk drive device 40 (hereinafter referred to as HDD) and The battery packs 50 are arranged in this order. These F
The DD 30, the HDD 40, and the battery pack 50 are located below the keyboard device 13.

The FDD 30 has a metal casing 31. On the front surface of the casing 31, an insertion opening 32 for inserting and removing a floppy disk, and a push button 33 that is pressed when the inserted floppy disk is taken out.
Are arranged. Metal brackets 34a and 34b are attached to the left and right side surfaces of the casing 31, respectively. The brackets 34a and 34b include a pair of tongue pieces 35a and 35b, which extend above the casing 31.
It is provided with 36a and 36b.

The FDD 30 is mounted on the bottom wall 5a of the bottom case 5 with the insertion opening 32 and the push button 33 facing the front of the bottom case 5. Therefore, at the position biased to the right of the front surface of the bottom case 5, the insertion port 3
2. An elongated opening 37 exposing the push button 33 and the push button 33
Is opened.

The HDD 40, as shown in FIG. 2 and FIG.
It has a housing 41 having a hermetically sealed structure that houses a magnetic disk and a head, and a circuit board 42 mounted on the upper surface of the housing 41. On the top surface of the circuit board 42, HD
Various circuit components 43 forming a control circuit and a drive circuit of D40 are mounted. A metal bracket 44 is attached to the peripheral surface of the housing 41. The bracket 44 includes a pair of fixing pieces 45a and 45b,
These fixing pieces 45a and 45b are bosses 46 on the bottom wall 5a.
It is fixed to the screw via a screw 47.

The battery pack 50 serves as a driving power source when the computer 1 is used without a cord, and is of a rechargeable type. This battery pack 5
0 has a case 51 in the shape of a flat rectangular box. The case 51 has a plurality of batteries (not shown) built therein, and the case 51 is placed on the bottom wall 5 a of the bottom case 5. As shown in FIG. 2 and FIG. 7, on the bottom wall 5a of the bottom case 5, a pair of guide walls 52a and 52b for guiding the left and right side surfaces of the case 51 are provided upright. These guide walls 52a and 52b are the bottom case 5
A storage space 53 for the battery pack 50 is defined inside the. The storage space 53 is located on the left side of the bottom case 5, and a battery insertion port 54 connected to the storage space 53 is opened at a position deviated to the left side of the front surface of the bottom case 5. Therefore, the battery pack 50 is designed to be taken in and out from the front of the housing 4.

As shown in FIG. 7, the battery insertion port 54
Is the bottom opening 5 that wraps around the bottom wall 5 a of the bottom case 5.
4a. The front edge of the bottom opening 54 a is recessed from the front surface of the bottom case 5. Then, as shown in FIG. 8A, a convex portion 55 projecting downward is formed over the entire width at the front end portion of the bottom surface of the case 51 of the battery pack 50. When the battery pack 50 is inserted into the storage space 53, the convex portion 55 is provided with the bottom opening 5.
The protrusion 55 forms a part of the bottom wall 5a of the bottom case 5 when the battery pack 50 is pulled out from the storage space 53.

As shown in FIG. 8, a pair of stoppers 56a and 56b are provided at the end of the storage space 53 so as to project. The stoppers 56a and 56b are the battery pack 50.
The insertion position of the battery pack 50 is defined by this contact.
Then, as shown in (b) of FIG. 8, the positive and negative power supply terminals 57 connected to the battery are provided on the insertion front end surface of the case 51.
a and 57b and a pair of connection terminals 58a and 58 connected to a temperature fuse and a temperature sensor (not shown) in the case 51.
b is arranged.

As shown in FIG. 2, the substrate unit 60 is housed in the rear half of the bottom case 5. The board unit 60 is located behind the FDD 30, the HDD 40, and the battery pack 50, and extends over the entire width of the bottom case 5. Substrate unit 60 of this embodiment
As shown in FIGS. 9 and 11, the first to fifth circuit boards 61a to 61e are divided into five, and the circuit boards 61a to 61e are spaced in the thickness direction of the housing 4. A shield frame 62 surrounding the circuit boards 61a to 61e is provided while being arranged in three stages.

The circuit boards 61a to 61e are obtained by cutting a rigid board base into a proper size, and a predetermined circuit pattern (not shown) is printed on both surfaces thereof. As shown in FIG. 11, the circuit boards 61a to 61e include a first board assembly 63 in which first to third circuit boards 61a to 61c are arranged side by side in the width direction of the bottom case 5, a fourth board assembly 63, and a fourth board assembly 63. It is divided into a second circuit board assembly 64 in which the fifth circuit boards 61d and 61e are arranged side by side in the width direction of the bottom case 5. Then, the first circuit board 6
1a and the second circuit board 61b are flexible first
The first circuit board 61a and the third circuit board 61c are electrically connected to each other via the flexible second connection board 65b. . Similarly, the fourth circuit board 61d and the fifth circuit board 61e are electrically connected to each other via the flexible third connection board 65c. further,
The first circuit board 61a and the fourth circuit board 61d are electrically connected to each other via a flexible fourth connection board 65d. Therefore, the circuit boards 61a to 61e
Are electrically connected to each other despite being divided.

A large number of circuit components 66 are mounted on both surfaces of each of the circuit boards 61a to 61e. The circuit component 66 is
It is electrically connected through the circuit pattern. These circuit components 66 include components that generate high frequency noise during operation and components that self-heat. Further, particularly in the case of this embodiment, the third circuit board 61c serves as a power supply board, and the circuit components 66 that generate heat during operation are gathered here.

The shield frame 62 includes a first shield substrate 68 and a second shield substrate 69, and a connecting end plate 70 interposed between the shield substrates 68, 69.
It has and. The shield substrates 68, 69 and the connecting end plate 70 are made of a sheet metal material having an electromagnetic shield function. As shown in FIG. 3 and FIG. 10, the first shield substrate 68 has an elongated substrate portion 71 that is overlaid on the bottom wall 5 a of the bottom case 5, and an upright portion 72 that rises from the side edge portion of the substrate portion 71. Be prepared for one. The board portion 71 includes the first support piece 7 that receives the first circuit board 61a.
3 and a second support piece 74 for receiving the second circuit board 61b.
And a third support piece 75 for receiving the third circuit board 61c. And, each of these support pieces 73, 7
4, 75 are formed by cutting and raising the substrate portion 71 upward, and the rising heights of the first support piece 73 and the second support piece 74 are substantially equal to each other. In contrast,
The rising height of the third support piece 75 is equal to that of the other support pieces 7.
It is higher than the rising height of 3,74.

As shown in FIG. 9, the first circuit board 61a
The second circuit board 61b is superposed on the front end portions of the first support piece 73 and the second support piece 74, and is screwed thereto. In this case, the board portion 71 covers the first and second circuit boards 61a and 61b from below, and the circuit component 66 is provided between the board portion 71 and the circuit boards 61a and 61b.
Is in. The second connection board 65b for connecting the first circuit board 61a and the third circuit board 61c is shown in FIG.
As shown in FIG. 5, the third circuit board 61c is positioned above the first and second circuit boards 61a and 61b by being inverted upward and bent into a substantially U shape. Then, in the third circuit board 61c, the end portion on the side opposite to the connection portion with the connection substrate 65b has the third support piece 7
It is piled up at the tip of No. 5 and screwed here.

For this reason, the three circuit boards 61a to 61c are supported on the first shield plate 68 in a two-tiered state.

The substrate portion 71 of the first shield substrate 68 is
The end portion on the side corresponding to the second circuit board 61b extends to the right side. The extension portion 71a is located just behind the FDD 30, and the extension portion 71a has a structure shown in FIG.
A cover 80 made of sheet metal as shown in 0 is installed.
The cover 80 has a partition wall 81 located above the extension 71a, and a plurality of tongue pieces 82 are formed at four corners of the cover 80. These tongues 82 are
It is superposed on the corner of 1a and the tip of the second support piece 74, and is fixed by screws 83, respectively.

As shown in FIGS. 2 and 9, the second shield substrate 69 has an elongated substrate portion 85 extending in the width direction of the housing 4.
And the upright portion 8 that rises from one edge of the substrate portion 85.
6 and 6 are integrally provided. The board portion 85 includes a first support piece 87 that receives the fourth circuit board 61d and a second support piece 88 that receives the fifth circuit board 61e. Then, the fourth circuit board 61 is attached to the tip of the first support piece 87.
The d is screwed, and the fifth circuit board 61e is screwed to the tip of the second support piece 88.

Thus, the first shield substrate 68 and the second shield substrate 68
When the circuit boards 61a to 61e are respectively fixed to the shield boards 69 of No. 1, as shown in FIG.
8 and 69 are connected to each other via the fourth connection board 65d. Then, these shield substrates 68,
69 are stacked in the vertical direction by bending the fourth connection board 65d into a substantially U shape, and are coupled to each other via a screw (not shown). As a result, the substrate portions 71 and 85 of the shield substrates 68 and 69 face each other,
The circuit boards 61d and 61e fixed to the board portion 85 are juxtaposed above the circuit boards 61a to 61c on the board portion 71. Therefore, the circuit boards 61a to 61e are stacked in three stages in the thickness direction of the housing 4, and in the case of the present embodiment, the power supply board having a large heat generation amount, that is, the third circuit board 61c is the first circuit. Board 61a and fourth circuit board 61
It is arranged between d and.

In the state where the shield substrates 68 and 69 are stacked, the standing portions 72 and 86 are substantially flush with each other to form the rear surface and the left side surface of the shield frame 62. A plurality of connector insertion ports 92 through which various connectors 91 are drawn out are opened in the.

As shown in FIGS. 2 and 3, the connecting end plate 70 is interposed between the front end portions of the substrate portions 71 and 85, and fixed to the substrate portions 71 and 85 with screws 93. There is. The connecting end plate 70 constitutes the front surface of the shield frame 62, and the fourth circuit board 61d is supported on the upper end portion of the connecting end plate 70. Also, the connecting end plate 70
A recess 94 into which the insertion tip of the battery pack 50 is inserted is formed at the left end of the.

The board unit 60 obtained by uniting the circuit boards 61a to 61e and the shield frame 62 in this way is incorporated in the latter half of the bottom case 5 as it is. Then, as shown in FIG. 2 and FIG.
A plurality of tongue pieces 95a extending from the connecting end plate 70 and a tongue piece 95b at the front right end of the second shield substrate 69 are fixed to the boss portion 46 on the bottom wall 5a of the bottom case 5 with screws 47. Has been done. Fixing pieces 96a and 96b overlapping with the rear surface of the bottom case 5 are formed at both left and right ends of the upright portions 72 and 86 which are the rear surface of the shield frame 62, and the bracket 28 of the hinge device 26 is attached to these fixing pieces 96a and 96b. It is fastened together. Therefore, the shield frame 62 also supports the display unit 3.

As shown in FIGS. 1 and 2, a pair of left and right synthetic resin covers 98a, 98b are fixed to the rear end of the upper surface of the shield frame 62. Cover 9
8a and 98b cover the open ends of the leg mounting portions 10a and 10b from below when the top cover 6 is covered on the bottom case 5, and these covers 98a and 98b.
b constitutes the bottom surfaces of the leg attachment portions 10a and 10b.

As shown in FIG. 2, of the circuit boards 61a to 61e stacked in three stages, the fourth one is located at the uppermost stage.
The circuit board 61d of FIG.
It is equipped with an expansion planned section 101 for expanding. The extension planned portion 101 is formed by a circuit pattern, and is located at the center of the board unit 60 in the length direction. Then, as shown in FIG. 2, the fourth circuit board 61d
The substrate portion 85 of the second shield plate 69 that covers the
At least a portion corresponding to the extension planned portion 101 has a notch 102, and most of the upper surface of the fourth circuit board 61d including the extension planned portion 101 is exposed above the board unit 60 through the notch 102. ing.

On the other hand, the upper surfaces of the FDD 30, the HDD 40 and the battery pack 50 are covered with the metal shield plate 10.
Covered by 5. As shown in FIGS. 1 and 12, the shield plate 105 includes a flat rectangular plate-shaped main portion 105 a corresponding to the planar shape of the rear half of the bottom case 5. Attachment tongues 106 are provided at a plurality of positions on the periphery of the main portion 105a. And the shield plate 1
Reference numeral 05 denotes a tongue piece 35 of the brackets 34a, 34b of the FDD 30 via screws (not shown) at a plurality of locations on the main portion 105a.
a, 35b, 36a, 36b, and the mounting tongue 106 is attached to the bottom wall 5 of the bottom case 5.
It is fixed to the boss portion 46 on the a via a screw 47.
In this case, the mounting tongue 106 located on the trailing edge side of the main portion 105 a has the shield frame 6 on the boss portion 46.
The second tongue pieces 95a and 95b overlap each other, and the shield frame 62 and the shield plate 105 are held in a conductive state.

As shown in FIG. 3, the main portion 105a of the shield plate 105 is located below the keyboard device 13, and the reinforcing plate 17 of this keyboard device 13 is separated from the shield plate 105 with a minute gap. They are facing each other. At the left and right ends of the upper surface of the shield plate 105, metal leaf springs 1
07a and 107b are screwed. Leaf spring 107
a and 107b are a plurality of elastically deformable contact pieces 10 respectively.
Have eight. The contact piece 108 is the keyboard device 13.
The reinforcing plate 17 is in contact with the reinforcing plate 17, and thus the shield plate 105 and the reinforcing plate 17 are held in a conductive state.

As shown in FIG. 12, the shield plate 105 as described above is provided with the substrate unit 60 from the rear end of the main portion 105a.
It integrally has an extension portion 110 extending toward. The extension 110 has a shape corresponding to the cutout 102 of the shield frame 62.
And the fourth circuit board 61d including the additional expansion planned portion 101 is covered from above. A connecting piece 111 is integrally formed at the tip of the extension portion 110. This connecting piece 111
Are screwed to the rear end of the shield frame 62, which prevents the extension 110 from rising.

As shown in FIG. 3, the extension portion 110 is close to the rear half of the upper wall 6a of the top cover 6. The extension 110 is an elongated recess 1 extending in the width direction of the housing 4.
It has twelve. A reflective liquid crystal display 113 for displaying the operating state of the computer 1 is attached to the recess 112. The liquid crystal display 113 has an elongated strip plate shape. This liquid crystal display 113
Is fitted in the recess 112 immovably in the width direction of the housing 4, but is fitted in the front-rear direction of the housing 4 movably over a predetermined range.

That is, the dimension of the recess 112 in the front-rear direction is formed larger than the dimension of the liquid crystal display 113 in the front-rear direction, and the front edge and the rear edge of the recess 112 each have a pair of inwardly extending locking pieces. 114a, 114b, 11
5a and 115b are cut and raised. As shown in the enlarged view of FIG. 13, the locking pieces 114a, 114b, 115a,
Between 115b and the edge of the liquid crystal display 113,
There is a gap 116, and the liquid crystal display 113 can move back and forth by this gap. The liquid crystal display 113 is projected above the upper surface of the extension 110.

In the latter half of the upper wall 6a of the top cover 6,
Long and narrow display window 117 exposing the liquid crystal display 113
Is opened. A transparent protective cover 118 is attached to the display window 117. On the inner surface of the upper wall 6a, the projections 12 extending along the front edge and the rear edge of the display window 117.
0a and 120b are integrally projected. As shown in FIG. 13, the protrusions 120a and 120b are located right above the front edge corner and the rear edge corner of the liquid crystal display 113,
The mutual facing portions of the protrusions 120a and 120b are guided to each other by the guide surface 1 which is inclined in a direction in which the protrusions 120a and 120b are separated from each other in the downward direction.
21a and 121b are formed. Guide surface 121a, 1
When the top cover 6 is put on the bottom case 5, the reference numeral 21b is in contact with the front edge corner and the rear edge corner of the liquid crystal display 113. Due to this contact, the liquid crystal display 113 moves back and forth according to the inclination of the guide surfaces 121a and 121b, and the dimensional error between the display window 117 of the top cover 6 and the liquid crystal display 113 is absorbed. At the same time, the liquid crystal display 113 is pressed against the bottom surface of the recess 112 to prevent the liquid crystal display 113 from tilting.

As shown in FIG. 14, the substrate unit 6
At the right end of 0, a first card slot 125 and a second card slot 126 are provided. These card slots 125 and 126 are arranged side by side in two rows. The first card slot 125 located on the lower side
Is the extension 71a of the first shield substrate 68 and the cover 8
It is formed between the partition wall 81 and the partition wall 81 of 0, and an expansion card 127 which is used in a fixed manner with a low frequency of insertion and withdrawal is inserted into the card slot 125. Then, as is apparent from FIG. 9, the second circuit board 6 is attached to the terminal end portion of the first card slot 125.
1b is located, and a connector (not shown) to which the expansion card 127 is connected is provided on the second circuit board 61b.

Second card slot 1 located on the upper side
26 is formed between the partition wall 81 of the cover 80 and the substrate portion 85 and the shield plate 105 of the second shield plate 69. An interface card 128, which is frequently inserted and removed, is inserted into the card slot 126. Interface card 1
As shown in FIG. 2, 28 is provided with terminal portions 129a, 1 at both ends.
29b, which is thinner than the expansion card 127. Then, as is apparent from FIG. 2, the fifth circuit board 6 is provided at the end of the second card slot 126.
1e is located, and a connector (not shown) to which the terminal portion 129a of the interface card 127 is connected is provided on the fifth circuit board 61e.

As shown in FIGS. 17 and 18, a third card slot 131 is provided at the left end of the board unit 60. The third card slot 131 includes the board portion 85 of the fifth circuit board 61e and the second shield board 69.
It is formed between and. Third card slot 131
Has a slit-shaped card insertion opening 133 opened on the left side surface of the shield frame 62, and another expansion card 132 can be inserted into the card slot 131 through the card insertion opening 133. ing. A connector (not shown) to which the expansion card 132 is connected is provided on the fifth circuit board 61e.

As shown in FIGS. 14 and 15, the housing 4
The second half of the above has an opening 135 connected to the first card slot 125 and the second card slot 126.
The opening 135 is a side surface opening 135 a opened on the right side surface of the housing 4, and an upper surface opening 13 is formed on the upper wall 6 a of the top cover 6 continuously with the side surface opening 135 a.
5b and the bottom case 5 connected to the side opening 135a.
Bottom opening portion 135c opened to the bottom wall 5a of the above. At the edge of the upper wall 6a connected to the upper surface opening 135b, a flat receiving portion 136 that projects into the upper surface opening 135b is formed.

As shown in FIG. 15, a cover 140 for covering the opening 135 is attached to the housing 4. The cover 140 includes a cover support body 141 fixed to the bottom case 5 of the housing 4, a first cover member 142 detachably connected to the cover support body 141, and a cover support body 141 that is openable / closable to the cover support body 141. Second support member 1 supported
And 43.

The cover support 141 has a bottom opening 135.
a flat fitting portion 144 that fits in c, and this fitting portion 144
And a pair of vertical holding walls 145a and 145b which are continuously located in the side surface opening 135a. The holding walls 145a and 145b are separated from each other in the front-rear direction of the housing 4 in the side surface opening 135a.
5a and 145b are bosses 146a and 1 of the bottom case 5.
They are fixed to 46b via screws 147, respectively. The holding walls 145a and 145b have substantially the same height as the peripheral wall 5b of the bottom case 5. And each holding wall 145
The a and 145b are provided with engaging holes 148a and 148b, and the pivotal protrusions 149a and 149b.

The first cover member 142 opens and closes the first card slot 125, and has a slender flat plate shape extending between the holding walls 145a and 145b. The first cover member 142 has a side opening 135a.
The lower half of the upper part of the holding wall 145a, 145b
A pair of engaging protrusions 150a and 150b are provided on the surface facing the and. The engagement protrusions 150a and 150b are engaged with the engagement holes 148a and 148b in a disengageable manner, and by this engagement, the first cover member 142 is attached to the cover support body 141 and the first card slot. 125 is blocked from the side. In this state, the first cover member 142 is flush with the peripheral wall 5b of the bottom case 5 and constitutes a part of the peripheral wall 5b.

The second cover member 143 is for opening and closing the second card slot 126, and has an upper wall portion 152 which covers the upper surface opening portion 135b and a side surface opening portion which is continuous with the upper wall portion 152. Side wall portion 15 covering the upper half of 135a
3 and 3. Upper wall portion 152 and side wall portion 153
Both have a flat plate shape elongated in the front-rear direction. A pair of leg portions 1 extending downward are provided at both front and rear ends of the side wall portion 153.
54a and 154b are provided. Legs 154a, 1
54b are holding walls 145a, 14 of the cover support 141.
5b is sandwiched from both front and back. These legs 154
Rotation holes 155a, 15a are provided at the tips of a, 154b, respectively.
5b is opened, and these rotation holes 155a and 155 are provided.
b is rotatably fitted to the protrusions 149a and 149b for pivotal support. By this fitting, the second cover member 143
Is rotated to the closed position that covers the upper half of the upper surface opening 135b and the upper half of the side surface opening 135a with the rotation holes 155a and 155b as fulcrums, and is rotated to the right side of the housing 4 so that both of the above openings 135b and 135a. Is rotated between the open position and the open position.

When the second cover member 143 is rotated to the closed position, the upper wall portion 152 is flush with the upper wall 6a of the top cover 6 and the side wall portion 153 is a side wall of the top cover 6. 6b is continuous with the surface 6b and constitutes a part of the top cover 6. Moreover, the upper wall portion 152
Overlaps with the receiving portion 136 in the upper surface opening 135b from above, which prevents the upper wall 6a of the top cover 6 from rising.

As shown in FIG. 14, when the second cover member 143 is rotated to the closed position, the locking portion 156 at the tip of the upper wall portion 152 has the locking protrusion 157 at the edge portion of the upper wall 6a.
The second cover member 143 is caught by the a and 157b and is held in the closed position.

As shown in FIGS. 14 to 16, the side wall portion 153 of the second cover member 143 is provided with a terminal lead-out port 160 connected to the second card slot 126. The terminal lead-out port 160 is provided at a position facing the terminal portion 129b of the interface card 128, and has a long hole shape extending in the front-rear direction of the housing 4. A lid plate 161 for opening and closing the terminal lead-out port 160 is attached to the side wall portion 153. The cover plate 161 has an elongated plate shape that matches the opening shape of the terminal lead-out port 160, and has a pivot 162 and a locking protrusion 163 (FIG.
4 has only one shown). The pivot 162 is rotatably supported at the opening edge of the terminal lead-out port 160. Therefore, the cover plate 161 has the pivot 162 as a fulcrum, and the closed position for closing the terminal lead-out port 160 and the side wall portion 15.
3 is rotated to the right side and rotated to an open position where the terminal lead-out port 160 is opened. Then, when the cover plate 161 is rotated to the closed position, the locking projection 163 is caught by the opening edge portion of the terminal lead-out port 160 and holds the cover plate 161 in the closed position. At the same time, when the lid plate 161 is closed, the lid plate 161 is flush with the side wall portion 153 of the second cover member 142 and constitutes a part of the side wall portion 153.

According to the cover 140 having such a structure,
As shown in FIG. 14, when the cover plate 161 is rotated to the open position while the interface card 128 is inserted in the second card slot 126, the terminal portion 129b of the interface card 128 is moved through the terminal lead-out port 160. Exposed. Therefore, it is possible to connect the connector 164 of the external expansion device to the terminal portion 129b without opening the second cover member 143.

As shown in FIGS. 5 and 18, a card insertion opening 170 connected to the third card slot 131 is opened on the left side surface of the rear half of the housing 4. Card slot 1
70 has a long hole shape extending in the front-rear direction of the housing 4, and is formed on the peripheral wall 6 b of the top cover 6. A cover plate 171 for opening and closing the card insertion slot 170 is attached to the peripheral wall 6b of the top cover 6. The lid plate 171 is
It has an elongated plate shape that matches the opening shape of the card insertion slot 170, and has a pivot 172 and a locking projection 17 at both front and rear ends thereof.
3 (only one shown in FIGS. 17 and 18). The pivot 172 is rotatably supported on the opening edge of the card insertion slot 170. For this reason, the cover plate 171 is rotated to the closed position where the card insertion port 170 is closed and the left side of the housing 4 by using the pivot 172 as a fulcrum, and the card insertion port 1 is rotated.
It is adapted to be rotated between an open position for opening 70. Then, when the cover plate 171 is rotated to the closed position, the locking projection 173 is caught by the opening edge portion of the card insertion port 170 and holds the cover plate 171 in the closed position. At the same time, when the lid plate 171 is closed, the lid plate 171 is flush with the peripheral wall 6b of the top cover 6 and forms a part of the peripheral wall 6b.

As shown in FIGS. 17 and 18, a power switch 180 is arranged at the left end of the board unit 60. The power switch 180 includes an actuator 181 that can be projected and retracted. Actuator 181
Penetrates the left side surface of the shield frame 62, that is, the standing portion 72 of the first shield substrate 68, and is led out to the peripheral wall 5b of the bottom case 5.

On the peripheral wall 5b of the bottom case 5, an operation button 182 made of synthetic resin for turning the power switch 180 on and off is provided. As shown in FIGS. 19 and 20, the operation button 182 includes a square pressing portion 183 that the operator presses with his / her fingertip. The pressing portion 183 is
It is exposed on the left side surface of the bottom case 5 through a through hole 184 formed in the peripheral wall 5b. A pair of stopper walls 185a and 185b facing the rising portion 72 of the first shield substrate 68 are provided at both front and rear ends of the pressing portion 183. Plate-like support portions 186a and 186b extending downward are integrally formed on the side surfaces of the stopper walls 185a and 185b. The lower end portions of the support portions 186a and 186b are connected by an elongated plate-shaped connection portion 187, and the support portions 186a and 186b and the connection portion 187 are elastically deformable. The connecting portion 187 is connected to the pressing portion 183.
Which is located below the bottom wall 5 of the bottom case 5.
It is placed on a.

On the bottom wall 5a of the bottom case 5, the through hole 1
A pair of support walls 189a and 189b located below 84
Is projected. Each of the support walls 189a and 189b is provided with a groove 190 that opens at its upper edge.
The connecting portion 187 of the operation button 182 is fitted to the position 0. Therefore, the operation button 182 is held on the bottom wall 5a of the bottom case 5 via the connecting portion 187, and the pressing portion 183 is pushed by the elastic force of the portion from the connecting portion 183 to the supporting portions 186a and 186b. It is held in the through hole 184 while being parallel to the peripheral wall 5b.

Then, as shown in FIG.
3 is pressed with a fingertip, the connecting portion 187 moves to the supporting portion 186.
Portions a and 186b are elastically deformed, and the pressing portion 183 is pushed into the bottom case 5. The pressing of the pressing portion 183 is performed by the stopper walls 185a, 185a, 1
85b is made until it contacts the upright portion 72 of the first shield plate 68, and the pressing stroke of the pressing portion 183 is restricted by the presence of the stopper walls 185a, 185b.

On the back surface of the lower end of the pressing portion 183, as shown in FIG.
As shown in, a pressing tongue piece 191 extending upward is integrally provided. The pressing tongue piece 191 is elastically deformable in the direction of coming into contact with and separating from the pressing portion 183, and the upper end portion which is a free end thereof is in contact with the actuator 181.
Therefore, when the pressing portion 183 of the operation button 182 is pressed with a fingertip, the actuator 1 is pressed through the pressing tongue piece 191.
81 is pressed and the power switch 180 is turned on or off
It is supposed to be done.

According to the power switch 180 having such a structure, the pressing portion 183 is stroked until the stopper walls 185a and 185b come into contact with the shield frame 62.
In this case, since the elastically deformable pressing tongue piece 191 is interposed between the pressing portion 183 and the actuator 181, the stroke of the pressing portion 183 is increased by, for example, deforming the stopper walls 185a and 185b. Even in such a case, the pressing tongue piece 191 elastically deforms and absorbs an excessive stroke of the pressing portion 183. Therefore, when the operation button 182 is pressed, it is possible to prevent an excessive load from being applied to the actuator 181, and it is possible to eliminate a trouble such as a failure or damage of the power switch 180.

As shown in FIGS. 7 and 21, at the left end of the front half of the bottom case 5, a lock mechanism 200 that locks the battery pack 50 in the storage space 53 and is capable of artificially releasing this lock is provided. It has been incorporated. The lock mechanism 200 includes a lock lever 201 that is detachably hooked on the case 51 of the battery pack 50. The lock lever 201 is arranged between the peripheral wall 5b forming the left side surface of the bottom case 5 and the left guide wall 52a. This lock lever 201 is shown in FIG.
As shown in FIG. 5, the cylindrical boss portion 202, the engaging piece 203 extending from the peripheral surface of the boss portion 202, and the engaging piece 203 extending from the peripheral surface of the boss portion 202 to the opposite side of the engaging piece 203. The pressing piece 204 that has been taken out is provided. The boss portion 202 is rotatably supported by a pivot shaft 205 on the bottom wall 5 a of the bottom case 5, whereby the engagement piece 203 and the pressing piece 20.
4 are pivoted in opposite directions about a pivot 205 as a fulcrum.

As shown in FIG. 7, the left guide wall 52a has a notch 207 that opens into the storage space 53. The notch 207 is provided at a position corresponding to the engaging piece 203 of the lock lever 201, and the engaging piece 203 and the side surface of the case 51 are opposed to each other through the notch 207. The side surface of the case 51 is provided with an engaging concave portion 208 that is located in the cutout 207 when the battery pack 50 is completely inserted into the storage space 53. The engagement recess 208 is opposed to the engagement protrusion 209 at the tip of the engagement piece 203.

As shown in FIGS. 21 and 22, a torsion coil spring 210 as a first spring is arranged behind the lock lever 201. The torsion coil spring 210 includes a coil portion 210a supported by a column 211 on the bottom wall 5a, and a pair of leg portions 210b and 210c connected to the coil portion 210a.
The tip of one leg 210b is locked to the bottom case 5, and the tip of the other leg 210c is locked to the engaging piece 203. Therefore, the lock lever 2
01 is urged to rotate clockwise so that the engagement piece 203 faces the notch 207, and the engagement protrusion 209 of the engagement piece 203 is always projected into the storage space 53.

Therefore, when the battery pack 50 is completely inserted into the storage space 53, the engagement protrusion 209 is fitted into the engagement recess 208 of the case 51, and the battery pack 50 is stored in the storage space by this fitting. It is retained by 53 and is retained.

On the left side surface of the bottom case 5, a window portion 2 for inserting a fingertip when the battery pack 50 is unlocked.
13 is opened. The window portion 213 is the lock lever 2
01 is located on the side of the pressing piece 204. Therefore, as shown in (b) of FIG. 22, when a fingertip is inserted into the window portion 213 and the pressing piece 204 is pressed by this fingertip, the lock lever 201 resists the biasing force of the torsion coil spring 210 and rotates counterclockwise. Is rotated in the direction. As a result of this rotation, the engagement protrusion 209 causes the engagement concave portion 2 of the battery pack 50 to move.
08, the battery pack 50 is unlocked.

The lock mechanism 200 has a shutter 215 for opening and closing the window 213. Shutter 21
Immediately before the lock lever 201, 5 is arranged between the left guide wall 52a and the peripheral wall 5b of the bottom case 5. This shutter 215 is shown in FIG.
5, the side wall portion 216 along the inner surface of the peripheral wall 5b.
And an upper wall portion 217 horizontally extending from the upper edge of the side wall portion 216 toward the guide wall 52a, and a front wall portion 218 connected to the front edges of the upper wall portion 217 and the side wall portion 216. As shown in FIG. 24, the lower edge of the side wall portion 216 is
A guide groove 22 provided on the bottom wall 5a and extending in the front-rear direction.
0 is slidably fitted to the upper wall portion 217.
The front wall 218 is slidably in contact with the guide wall 52a. Therefore, the shutter 215 has the window portion 213.
Between a closing position for closing the window portion 213 by being interposed between the window portion 213 and the pressing piece 204 of the lock lever 201, and an opening position for separating the window portion 213 and opening the window portion 213. It is supported by the bottom case 5 so as to be slidable back and forth. The front wall portion 218 of the shutter 215 and the spring receiver 221 at the front end of the bottom case 5 are provided.
A compression coil spring 222 as a second spring is interposed between and in a compressed state. For this reason,
The shutter 215 is constantly pressed toward the closed position where the window 213 is closed.

When the shutter 215 is slid to the closed position, the pressing piece 204 of the lock lever 201 enters the inside of the side wall portion 216 of the shutter 215 as shown in FIG. Have been forced. When the shutter 215 is slid to the open position, as shown in FIG. 22A, the side wall portion 216 of the shutter 215 is separated from the side of the pressing piece 204, and the pressing piece 204 is moved outward through the window portion 213. Exposed to. At the same time, since the lock lever 201 is rotationally biased by the torsion coil spring 210 as described above, the lock lever 201 is further rotated in the clockwise direction by the thickness of the side wall portion 216, and the tip of the pressing piece 204 is moved to the side wall portion. The edge portion 216a at the tip of 216 faces each other. Then, when the shutter 215 is released in this state, the shutter 215 is constantly pressed by the compression coil spring 222 toward the closed position. Therefore, the edge 216a of the side wall 216 is caught by the tip of the pressing piece 204, and the shutter is released. 215 is held in the open position against the biasing force of the compression coil spring 222.

The side wall part 216 is provided with a finger-hanging rib 223 facing the window part 213.

As shown in FIGS. 2 and 26, an extension connector 231 for connecting the trackball 230 is provided at the right end of the front half of the bottom case 5. The trackball 230 is the liquid crystal display 2 described above.
1 is a kind of pointing device used to specify the position on the screen, and as shown in FIG.
A spherical operation unit 233 is provided on the upper surface of 32. The operation unit 233 is adapted to be rotated by the operator's fingertip, and the cursor or the like on the screen can be freely moved by this rotation. A connector 235 detachably connected to the extension connector 231 is provided at one end of the main body case 232. This connector 235
A connector body 236 made of synthetic resin is provided. The connector body 236 includes a pair of fitting protrusions 236a, 2
36b, and the contact terminal 237 is arranged between the fitting protrusions 236a and 236b.

As shown in FIG. 26, the extension connector 231 of the bottom case 5 is a connector body 24 made of synthetic resin.
It has 0. The connector body 240 has an elongated box shape extending in the front-rear direction of the bottom case 5, and integrally includes flange portions 241a and 241b at both end portions along the longitudinal direction. The connector body 240 is arranged along the peripheral wall 5b forming the right side surface of the bottom case 5, and the flange portions 241a, 241 at both ends thereof are arranged.
b is a pair of projecting bosses 242a, 242a, 2 on the bottom wall 5a.
It is being fixed to 42b via the screw 243. And
This connector body 240, as shown in FIG.
It is adjacent to the right side of the DD 30.

As shown in FIG. 27, the connector body 24
0 is the fitting protrusions 236a, 236 of the connector 235.
It has a fitting recess 244 into which b is removably fitted. The fitting recess 244 is opposed to the peripheral wall 5b forming the right side surface of the bottom case 5, and a terminal plate 245 electrically contacting the contact terminal 237 of the connector 235 is provided on the end surface of the fitting recess 244. It is arranged. Terminal board 24
5 is electrically connected to the board unit 60 via a flexible connection board 246. Then, the fitting recess 244 of the connector body 240 and the terminal plate 255
Are exposed to the outside through an elongated connector lead-out port 248 opened on the right side surface of the bottom case 5.

A metal conductive plate 250 is integrally molded on the connector body 240. The conductive plate 250 has a first exposed portion 251 exposed in the fitting recess 244 and a second exposed portion 252 that is continuous with the first exposed portion 251 and is exposed on the rear surface of the connector body 240. is doing. As shown in FIG. 27, the first exposed portion 251 extends closer to the opening end of the fitting recess 244 than the terminal plate 245, and is located on both upper and lower sides of the terminal plate 245.

As shown in FIG. 26, the second exposed portion 252
Is integrally provided with a pair of ground terminal portions 255a and 255b. In the case of this embodiment, one ground terminal portion 255
As shown in FIG. 28, a is superposed on the lower surface of the front flange portion 241a of the connector body 240, and the other ground terminal portion 255b is superposed on the upper surface of the rear flange portion 241b. An earth metal fitting 256 is interposed between the one earth terminal portion 255a and the boss portion 242a. Ground metal fitting 2
56 is fastened together with the boss portion 242a via a screw 243. This earth metal fitting 256 is used for the adjacent FDD3.
A conductive piece 257 is integrally formed on the zero tongue piece 36b. The conducting piece 257 has a screw 2 on the tongue piece 36b.
It is fixed via 58, and the shield plate 105 is superposed on the conduction piece 257. From this,
The conductive plate 250 of the connector body 240 is electrically connected to the casing 31 of the FDD 30 and the shield plate 105 via the ground terminal portion 255a and the ground metal fitting 256.

In such a structure, when the connector 235 of the trackball 230 is connected to the extension connector 231, there is a possibility that discharge may occur between the contact terminal 237 and the terminal plate 245 due to the static electricity charged. However, the additional connector 231 is integrally molded with the conductive plate 250, and the conductive plate 250 is fitted on the upper and lower sides of the terminal plate 245 rather than the terminal plate 245.
Has a first exposed portion 251 extended to the open end side of the. Therefore, when connecting the connector, the first exposed portion 25
1 comes closer to the contact terminal 237 before the terminal plate 245, and discharge is generated between the first exposed portion 251 and the contact terminal 237. And this conductive plate 25
Since 0 is conducted to the casing 31 of the FDD 30 via the grounding metal 256, static electricity is transmitted to the casing 31 of the FDD 30 and the shield plate 10 from the casing 31.
You can escape to 5.

The bottom case 5 has a connector outlet 24.
A shutter plate 260 for opening and closing 8 is provided. The shutter plate 260 has a rectangular plate shape that matches the opening shape of the connector lead-out port 248. The shutter plate 260 extends along the peripheral wall 5b forming the right side surface of the bottom case 5, and closes the connector lead-out port 248 and opens the connector lead-out port 248 to fit the recessed portion 244 of the connector body 240. It is adapted to be slid back and forth between the open position exposing the.

In this case, as shown in FIG. 26 and FIG.
On the bottom wall 5a of the bottom case 5, a guide wall 261 that slidably inserts a shutter plate 260 between itself and the peripheral wall 5b.
Is erected. The guide wall 261 is located rearward of the connector body 240, and the connector body 2
A flat wall portion 262 that is continuous with the guide wall 261 is formed at an end portion of the 40 that faces the peripheral wall 5b. Wall 262
Holds the shutter plate 260 between itself and the peripheral wall 5b when the shutter plate 260 is slid to the closed position. Therefore, the extension connector 231 of the present embodiment
Also has a function as a guide wall for guiding the slide of the shutter plate 260.

The shutter plate 260 has a finger hooking rib 263 facing the connector outlet 248.

In the computer 1 having such a configuration, the battery pack 50 is inserted into the storage space 53 from the battery insertion opening 54 on the front surface of the bottom case 5.
Then, when the side surface of the case 51 of the battery pack 50 reaches the notch 207, the engagement protrusion 209 of the lock lever 201 contacts the side surface of the case 51. This contact causes the lock lever 201 to rotate counterclockwise,
The insertion of the battery pack 50 is allowed. When the battery pack 50 is inserted into the storage space 53 until it comes into contact with the stoppers 56a and 56b, the engaging recess 208 of the case 51 is inserted.
And the engaging projection 209 of the lock lever 201 face each other, and the engaging projection 209 is twisted by the torsion coil spring 21.
The urging force of 0 elastically engages the engaging recess 208.

By this engagement, the battery pack 50 is locked in the storage space 53 so that it cannot be pulled out.

On the other hand, in order to unlock the battery pack 50, first, a fingertip is inserted into the window 213 and the fingertip is hooked on the rib 223 of the shutter 215. Then, the shutter 215 is attached to the compression coil spring 222.
Slide it towards the open position against the urging force of. At this time, the lock lever 201 is urged to rotate clockwise by the torsion coil spring 210, and the tip end of the pressing piece 204 of the lock lever 201 is released from the shutter 21.
5 is in contact with the inner surface of the side wall portion 216 of No. 5, the inner surface of the side wall portion 216 is separated from the tip portion of the pressing piece 204 when the shutter 215 is slid to the open position. By this separation, the lock lever 201 further rotates by the thickness of the side wall portion 216, and the tip end portion of the pressing piece 204 faces the edge portion 216a of the side wall portion 216. Then, the shutter 215
Is pressed toward the closed position by the compression coil spring 222, so when the hand is released from the shutter 215, the edge portion 216 of the side wall portion 216 of the shutter 215 is released.
a is caught by the pressing piece 204, and the shutter 215 is held at the open position.

As a result, the window portion 213 is opened and the lock lever 201 is opened through the window portion 213.
Since the pressing piece 204 is exposed, the pressing piece 204 is pushed in with a fingertip. Then, the lock lever 201 is rotated counterclockwise against the biasing force of the torsion coil spring 210, and the engagement protrusion 209 of the lock lever 201 is disengaged from the engagement recess 208 of the battery pack 50. Therefore, as long as the pressing piece 204 is pressed with the fingertip, the battery pack 50 is kept in the unlocked state, so that the fingertip is hooked on the convex portion 55 at the front end of the bottom surface of the battery pack 50, and the battery pack 50 is held. Storage space 53 for the pack 50
Pull out from.

When the pressing piece 204 is pressed, the tip of the pressing piece 204 separates from the edge 216a of the side wall 216, so that the holding of the shutter 215 is released at the same time. Therefore, when the fingertip pressing the pressing piece 204 is pulled out from the window portion 213 to release the pressing of the pressing piece 204, the shutter 215 is forcibly slid to the closed position by the compression coil spring 222, and the window 213 is pressed. The part 213 is automatically closed.

According to the lock mechanism 200 having such a structure, when the shutter 215 is slid to the open position,
Since the shutter 215 is held in the open position by engaging with the pressing piece 204 of the lock lever 201, when pressing the pressing piece 204 of the lock lever 201 with a fingertip,
It is not necessary to hold the shutter 215 stationary. Therefore, the operability of the lock lever 201 can be favorably maintained despite the provision of the shutter 215 that covers the lock lever 201.

Further, the pressing piece 204 of the lock lever 201
When the battery pack 50 is unlocked by pressing, the pressing piece 204 and the side wall portion 21 of the shutter 215 are pressed.
The engagement with 6 is disengaged. Therefore, when the fingertip is pulled out from the window portion 213, the shutter 215 is slid to the closed position, so that the window portion 213 can be automatically closed.
For this reason, it is possible to reliably prevent forgetting to close the window portion 213, and it is possible to eliminate erroneous operation of the lock lever 201.

The present invention is not limited to the above embodiments, but can be variously modified within the scope of the present invention.

For example, the storage component housed in the housing is not limited to the battery pack but may be an expansion device such as a modem device or a hard disk drive device which is unitized as one module.

Furthermore, the present invention is not limited to a book-type personal computer, but can be similarly applied to other small electronic devices such as a word processor.

[0098]

According to the present invention described in detail above, when the shutter is slid to the open position, the shutter is
Since the lock lever is held in the open position by being engaged with the pressing piece, it is not necessary to hold the shutter so that it does not move when the pressing piece is pressed with a fingertip to unlock the storage component. Therefore, despite the provision of the shutter for covering the lock lever, the operability of the lock lever can be favorably maintained.

When the pressing piece is pressed to unlock the storage component, the pressing piece is disengaged from the shutter. When the fingertip is pulled out from the window, the shutter is slid to the closed position. For this reason, it is possible to automatically close the window portion and reliably prevent forgetting to close the window portion.
There is an advantage that erroneous operation of the lock lever can be eliminated.

[Brief description of drawings]

FIG. 1 is an exploded perspective view of a housing of a base unit of a personal computer according to an embodiment of the present invention.

FIG. 2 is a perspective view showing a state in which a board unit and functional components such as an FDD and an HDD are incorporated in a bottom case.

FIG. 3 is a cross-sectional view of a base unit showing a positional relationship among a shield plate, a substrate unit, and an HDD.

FIG. 4 is a perspective view of the personal computer with a display unit opened.

FIG. 5 is a perspective view of the personal computer with the display unit closed.

FIG. 6 is an exploded perspective view showing a connection portion between a display unit and a base unit.

FIG. 7 is a perspective view showing a storage space of a bottom case.

FIG. 8A is a sectional view showing a state in which a battery pack is mounted in a storage space. 8B is a cross-sectional view taken along the line AA of FIG.

FIG. 9 is a perspective view showing a state in which a circuit board is fixed to each of a pair of shield boards.

FIG. 10 is a perspective view of a first shield substrate.

FIG. 11 is a plan view showing a plurality of circuit boards in a developed state.

FIG. 12 is a perspective view of a shield plate and a liquid crystal display supported by a recess of the shield plate.

FIG. 13 is an enlarged sectional view showing a mounting portion of a liquid crystal display.

FIG. 14 is a cross-sectional view of first and second card slots in a housing and a cover that opens and closes these slots.

FIG. 15 is an exploded perspective view of a cover that opens and closes a card slot.

FIG. 16 is a right side view of the personal computer.

FIG. 17 is a sectional view of a third card slot and an operation button for opening and closing the power switch.

FIG. 18 is a cross-sectional view showing a state where an operation button is pressed.

FIG. 19 is a perspective view showing a structure for attaching operation buttons to the bottom case.

FIG. 20 is a perspective view of an operation button.

FIG. 21 is a sectional view showing a lock mechanism of the battery pack.

FIG. 22A is a sectional view showing a state in which the shutter is opened to expose the lock lever of the lock mechanism. (B)
FIG. 6 is a cross-sectional view showing a state in which the lock lever of the lock mechanism is pressed with a fingertip to unlock the battery pack.

FIG. 23 is a sectional view showing a positional relationship between a shutter and a lock lever.

24 is a sectional view taken along the line BB of FIG.

FIG. 25 is a perspective view showing a positional relationship between a shutter and a lock lever.

FIG. 26 is a perspective view showing a mounting structure of an expansion connector to which a ball point is connected.

FIG. 27 is a perspective view showing a state where the expansion connector is attached to the bottom case.

FIG. 28 is a cross-sectional view showing a mounting structure of the expansion connector and a grounding structure.

FIG. 29 is a plan view showing a state where the expansion connector is incorporated in the bottom case.

FIG. 30 is a perspective view of a ball point.

[Explanation of symbols]

4 ... Casing, 5b ... Peripheral wall, 50 ... Storage parts (battery pack), 53 ... Storage space, 200 ... Lock mechanism, 20
1 ... Lock lever, 202 ... Boss portion, 203 ... Engaging piece,
204 ... Pressing piece, 210 ... First spring (torsion coil spring), 213 ... Window portion, 215 ... Shutter, 216a ... Edge portion, 222 ... Second spring (compression coil spring).

Claims (1)

[Claims] 1. A housing having a peripheral wall and a storage space inside which is surrounded by the peripheral wall, a storage component removably stored in the storage space of the housing, and the storage component in the storage space. A lock mechanism that locks the stored state and is capable of artificially releasing the lock is provided, and the lock mechanism is pivotally supported on the housing in a direction to approach and separate from a storage component. The lock lever is provided with an engaging piece that is removably engaged with the storage part, and the engaging piece extends on the opposite side across the pivotal fulcrum of the lock lever. The lock lever is always urged by the first spring in a direction in which the engaging piece is caught by the storage component, and the peripheral wall of the housing exposes the pressing piece. Has a window In this housing, a closed position which is interposed between the window portion and the pressing piece of the lock lever and closes the window portion, and a state where the housing is separated from the window portion and the pressing piece to open the pressing piece A shutter that is slidable between an open position where the shutter is exposed to the portion and that is always biased by a second spring toward the closed position is provided. A small electronic device having an edge portion with which a tip portion of the pressing piece is hooked when the pressing piece is slid to an open position against.