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JPH11110075

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DESCRIPTION JPH11110075
[0001]
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a
portable information processing apparatus such as a notebook personal computer with improved
sound effects.
[0002]
2. Description of the Related Art In recent years, in information processing apparatuses such as
computers, functions corresponding to processing of video and audio called multimedia and data
communication have come to be equipped in portable information processing apparatuses. .
[0003]
Under such circumstances, in terms of sound, in notebook computers, etc., which are
conventional portable information processing devices, from the level of a buzzer that only
generates a warning sound at the time when the speakers began to be installed It has been
developed into one equipped with an audio device that outputs high-quality sound of stereo
sound from a CD, a CD-ROM, etc. as a sound source.
[0004]
However, on the other hand, since a portable information processing apparatus is required to be
portable and lightweight, the built-in speaker is also designed within the limitations.
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Recently, the speaker of the portable information processing device also requires two or more
speakers for stereo sound, and it is necessary to devise a place to accommodate the speaker,
provide an external terminal for sound, and connect to the external speaker doing.
[0005]
Although various attempts have been made to provide a portable information processing
apparatus with a stereo effect, the use of a docking station is one of them.
That is, in order to achieve portability and weight reduction of the portable information
processing apparatus, a configuration is adopted in which an expansion unit called a docking
station is connected to the information processing apparatus for the purpose of multifunctionalization. ing.
[0006]
The extension unit of the portable information processing apparatus generally adopts a
configuration in which the portable information processing apparatus is stacked on the extension
unit so as not to impair the space saving aspect of the information processing apparatus.
[0007]
[Problems to be Solved by the Invention] In order to improve the sense of stereo sound, it is
necessary to secure a certain distance between speakers, but the width of the present notebook
personal computer is the length of the A4 size in the longitudinal direction. Because the distance
between the left and right speakers is close, sufficient stereo effect can not be obtained.
[0008]
In the conventional example, the speaker contained in the expansion unit disposed at the bottom
of the information processing apparatus is generally arranged to face the front or side of the
expansion unit. In order to secure the size of the vibrating surface, an expansion unit in which
the built-in speaker of the expansion unit is disposed outside the side surface of the information
processing apparatus can be seen.
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[0009]
However, in the configuration in which the portable information processing apparatus is
connected to the extension unit, parts such as a connector are required, so that the entire
configuration becomes large and heavy, which is inconvenient to carry.
In addition, since the built-in speaker is small, there is a problem that the volume of the bass is
small.
[0010]
Therefore, an object of the present invention is to provide a portable information processing
apparatus in which the acoustic effect is improved by removably attaching the pair of speaker
units to the main body of the information processing apparatus.
[0011]
SUMMARY OF THE INVENTION According to the present invention, a main body having a
keyboard, a display unit rotatably mounted on the main body, and a pair of stand units provided
upright at the far side corner of the main body. A pair of shafts having terminals and a pair of
speaker units rotatably and removably attached to the respective shafts are provided, and the
respective speaker units are integrally formed with the sound output opening. A housing having
a first engagement claw, a speaker mounted in the housing, and a first end of the housing
rotatably attached to the first end of the housing for clamping the shaft in cooperation with the
first engagement claw A second engaging claw, first urging means for rotatably urging the
second engaging claw in the direction of the first engaging claw, and a second rotatably attached
to the second end of the housing 3 engaging claws, Second urging means for urging the third
engaging claw rotatably to be detachably engaged with the main body, and the respective
terminals when the speaker unit is rotatably attached to the shaft There is provided a portable
information processing apparatus comprising: a pair of springs pressed against each other; and a
pair of lead wires connecting the respective springs to the speaker.
[0012]
When the speaker unit is used, each speaker unit is used rotated approximately 90 degrees to
the left and right with respect to the main body.
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Thereby, an excellent acoustic effect can be obtained.
When carrying the information processing apparatus, the speaker unit is removed from the main
body and carried by the information processing apparatus alone.
It is possible to carry the speaker unit attached to the main body.
[0013]
Preferably, the housing of each speaker unit is configured as a bass reflex type or a back load
horn type.
As a result, it is possible to emphasize and output the low-pitched portion of the voice with a
small speaker.
[0014]
BEST MODE FOR CARRYING OUT THE INVENTION Referring to FIG. 1, a schematic perspective
view of a notebook computer 2 according to an embodiment of the present invention is shown.
The notebook personal computer 2 has a main body 4 having a keyboard 6 and a display unit 8
rotatably attached to the main body 4. A liquid crystal display (LCD) 10 is mounted on the
display unit 8.
[0015]
A pair of speaker units 12 is removably attached to the left and right of the main body 4 of the
notebook computer 2. Since each speaker unit 12 has the same configuration, the following
description will mainly focus on the right speaker unit 12 in detail.
[0016]
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As shown in FIG. 4, a resin shaft 20 having a hollow inside is erected at the rear right corner of
the main body 4. Similarly, a resin shaft 20 is provided upright at the far left corner of the main
body 4.
[0017]
The shaft 20 is formed with a pair of mutually spaced annular grooves, in which terminals 22
and 24 are fitted. Each of the terminals 22 and 24 is connected to the audio output circuit of the
notebook computer 2 through a lead wire accommodated in the shaft 20.
[0018]
Referring to FIG. 2, the housing (speaker box) 14 of the speaker unit 12 has an opening 18 for
audio output. A speaker 16 is mounted on the top wall of the housing 14, as best seen in FIG.
[0019]
The housing 14 is integrally formed with a first engagement claw 26 that engages with the shaft
20. A second engaging claw 28 is rotatably attached to one end of the housing 14 by a pin 36,
and the second engaging claw 28 is biased in a counterclockwise direction by a torsion spring
which will be described later. The shaft 20 is held in cooperation with the first engaging claw 26.
[0020]
Next, with reference to FIG. 5, the mounting structure of the second engagement claw 28 will be
described. At one end 14 a of the housing 14, holes 32 and 34 aligned with each other in the
direction perpendicular to the recess 30 are formed.
[0021]
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The second engagement pawl 28 has a pair of spaced apart flanges 28a and 28b, and holes 38
and 40 are formed in each of the flanges 28a and 28b. 42はトーションスプリングである。
[0022]
To attach the second engagement pawl 28 to the housing 14, the pin 36 is inserted into the hole
32 of the housing 14 and then into the aperture 38 of the second engagement pawl 28. With the
torsion spring 42 positioned between the brackets 28a, 28b of the second engagement pawl 28,
the pin 36 is inserted into the torsion spring 42 and then in the hole 40 of the second
engagement pawl 28 and in the hole 34 of the housing 14 insert.
[0023]
As a result, the leg 42a of the torsion spring 42 pushes the second engagement claw 28, and the
second engagement claw 28 is biased in the counterclockwise direction in FIG. Hold 20.
[0024]
With this structure, the speaker unit 12 is rotatably and removably attached to the shaft 20 of
the main body 4.
In order to remove the speaker unit 12 from the main body 4, it is only necessary to rotate the
speaker unit 12 by an angle in the counterclockwise direction and pull the speaker unit 12 away
from the main body 4.
[0025]
A third engagement claw 44 is rotatably attached to the other end of the housing 14 by a pin 46.
The pin 44 is urged clockwise by a torsion spring which will be described later. The attachment
structure of the third engagement claw 44 is similar to the attachment structure of the second
engagement claw 28 shown in FIG.
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[0026]
Referring to FIG. 6, the other end 14b of the housing 14 is formed with a recess 48 and holes 50,
52 vertically aligned with one another. The third engaging claw 44 has a pair of brackets 44a
and 44b spaced apart from each other, and the brackets 44a and 44b have holes 54 and 56
respectively. 58はトーションスプリングである。
[0027]
To attach the third engagement pawl 44 to the housing 14, the pin 46 is first inserted into the
hole 50 of the housing 14 and then into the aperture 54 of the third engagement pawl 44. Then,
with the torsion spring 58 positioned between the brackets 44 a and 44 b of the third
engagement claw 44, the pin 46 is inserted into the torsion spring 58. Then, the pin 46 is
inserted into the hole 56 of the third engagement claw 44 and the hole 52 of the housing 14.
[0028]
Thereby, the leg 58a of the torsion spring 58 pushes the third engaging claw 44, and the third
engaging claw 44 is urged clockwise in FIG. 2 and engaged with the front end of the main body 4
of the notebook computer 2 Do.
[0029]
Referring again to FIG. 2, the housing 14 is integrally formed with a protrusion 61.
One end of a plate spring 60, 62 is fixed to the projection 61, and the other end of the plate
spring 60, 62 is in pressure contact with the terminals 22, 24 shown in FIG. The plate springs 60
and 62 are connected to the terminals of the speaker 16 by lead wires 64 and 66, respectively.
[0030]
The speaker housing 14 of the present embodiment is a bus reflex type, and the opening 18 is a
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bus reflex portion 68 in the illustrated structure. The bass reflex of the sound output from the
speaker 16 is increased by the bass reflex section 68.
[0031]
Thus, when the speaker unit 12 is used, the pair of speaker units 12 is rotated approximately 90
° in the direction away from the main body 4 of the notebook computer 2. As a result, the
opening 18 of each speaker unit 12 is directed to the operator of the notebook computer 2 so
that the operator can hear high-quality sound with good sound effects.
[0032]
When it is desired to transport the notebook computer 2, each speaker unit 12 can be easily
removed from the notebook computer 2 by one touch, and the operator can transport the
notebook computer 2 alone.
[0033]
Referring to FIG. 7, a cross-sectional view of a speaker unit according to a second embodiment of
the present invention is shown.
In the description of this embodiment, substantially the same components as in the first
embodiment described above will be described with the same reference numerals.
[0034]
The speaker unit 12A of this embodiment has a back load horn type housing 14 '. That is, the
housing 14 'has fins 70 (preferably, a plurality of fins alternately projecting from the left and
right wall surfaces) projecting to the inside.
[0035]
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As a result, while the sound output from the speaker 16 follows the path of the arrow 72, the
bass portion is emphasized, and the sound in which the bass portion is emphasized is output
from the opening portion 18. Preferably, the fins 70 are staggered.
[0036]
According to the present invention, as described in detail above, the pair of speaker units are
detachably attached to the portable information processing apparatus, so that the portability of
the information processing apparatus is not impaired, as needed. It is possible to provide
excellent sound with improved sound effects.
[0037]
Brief description of the drawings
[0038]
1 is a schematic perspective view of a notebook computer according to an embodiment of the
present invention.
[0039]
2 is a cross-sectional view of the speaker unit according to the first embodiment of the present
invention.
[0040]
3 is a side view of the speaker unit.
[0041]
4 is a perspective view showing a shaft portion of the notebook computer body.
[0042]
5 is an exploded perspective view showing the mounting structure of the second engagement
claw.
[0043]
6 is an exploded perspective view showing the mounting structure of the third engagement claw.
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[0044]
7 is a cross-sectional view of the speaker unit of the second embodiment of the present
invention.
[0045]
Explanation of sign
[0046]
12 speaker unit 14 housing 16 speaker 18 opening 20 shaft 26 first engagement claw 28
second engagement claw 44 third engagement claw
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