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JP2002064898

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Notice
This translation is machine-generated. It cannot be guaranteed that it is intelligible, accurate,
complete, reliable or fit for specific purposes. Critical decisions, such as commercially relevant or
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DESCRIPTION JP2002064898
[0001]
The present invention relates to a sound generating source (for example, a plate, a bar, etc.),
which is a foam plastic solid body invented by utilizing the characteristic that the closed cell
foam plastic is extremely excellent in sound conductivity and vibration transferability. A foamed
plastic resonance device or a sounding screen provided with a tube, a wire (string), a string, a
band, etc., or various speakers), mainly a play equipment for producing a loud sound for a
juvenile such as a nursery school, a kindergarten, etc. Or provide a sense of sound learning tool
or the like, and also provide a screen for making loud noise from the entire screen for theaters
and the like.
[0002]
[Problems of the Prior Art] In the foamed plastic, air layers are all connected such as closed-cell
foams having independent cells one by one, such as expanded polystyrene (expanded
polystyrene), expanded vinyl chloride, expanded ABS, etc. There are open-celled ones, for
example, foamed polyethylene, foamed polyurethane, etc.
[0003]
Among the above, the open-celled ones are widely used as excellent sound absorbing materials
because they have extremely high sound absorption.
[0004]
[0004] On the other hand, among the foam plastics, those of closed cells, such as polystyrene
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foam, have excellent characteristics of very high sound conductivity and vibration transmission,
in contrast to the sound absorption of the above-mentioned open cells. However, conventionally,
there has been no application utilizing this characteristic at all, and it has been left unknown or
undeveloped, and its effective utilization and application have been considered as problems.
[0005]
Also, conventionally, speakers for theaters, simulators, projection TVs, etc. have to be provided
with a number of large speaker boxes separately from the screen, and in particular there are
problems with space and cost. there were.
[0006]
Further, since the conventional screen is mostly made of cloth, if the screen shape is a curved
surface or a spherical surface, slack is inevitably generated, so it was extremely difficult to create
a curved surface or a spherical screen. .
[0007]
Therefore, the inventor (applicant) considers that the above characteristics should be effectively
utilized, and as a result of trial and error, the volume of the set volume of the foamed plastic and
the sound source (sound Are generated as vibration (for example, speakers of various electric
and electronic audio equipments) integrally (integrally by means of fixation, adhesion, adhesion,
embedding, contact, etc.), and vibration of sound is generated from a sound source to foam
plastic solid In the case of direct transmission, the sound of the sound source is transmitted as
vibration to the whole (full volume) of the foamed plastic solid, which is resonantly amplified, and
the solid itself is as if it were a single speaker (loudspeaker, The present invention is based on the
development that the sound is expanded and sounded from the entire three-dimensional surface,
the entire surface, or the front surface (in the case of a screen, etc.) like a sound amplifier.
[0008]
That is, according to the present invention, a foam plastic is formed into a set volume in a flat
plate shape, a spherical body shape (non-empty, hollow), or any other shape with closed-cell
foam plastic such as expanded polystyrene. The problem is solved by a foamed plastic resonance
apparatus characterized in that a sound generation source such as a speaker is integrally
provided in a part of.
[0009]
In the above, as the closed cell foam plastic, expanded polystyrene (expanded polystyrene)
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(example) is most suitable in terms of performance and cost etc. However, foam ABS, hard foam
vinyl chloride, and other closed cell foams. It is also possible to use plastic
[0010]
The foamed plastic has a flat plate shape, a curved plate shape, a square shape, a rectangular
shape, a spherical shape (empty, hollow), a hemispherical shape (empty, hollow), etc., its shape,
size, etc. Is entirely optional depending on the purpose.
However, the larger the three-dimensional volume, the greater the sound expansion effect by
resonance resonance.
[0011]
The means for integrally providing the sound generation source to a part of the foamed plastic
solid is fixing, bonding, bonding, embedding, contact, etc., so that the vibration of the sound
emitting source is directly transmitted to the foamed plastic solid.
[0012]
The sound source is a movie projection apparatus, various simulators, a television, a video, a
DVD, a personal computer, a tape recorder, a CD, an MD and other components, a player, various
speakers of various electric and electronic audio equipment,
[0013]
Alternatively, the vibration of the sound generated by striking, repelling, friction, etc. of metal,
ceramic, plastic, wood plate, bar, tube, wire, string, band etc. is transmitted to the foamed plastic
solid. Boards, bars, tubes, lines (strings), strings, bands, etc.
[0014]
Alternatively, it is a sound producing portion such as a toy, a play tool or the like from which
sounds such as wind chimes and rattles are emitted.
[0015]
The present invention also relates to a closed plastic foam plastic such as expanded polystyrene,
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which is flat, arc-curved, spherical, hemispherical, or any other arbitrary shape and thickness of a
foamed plastic having a predetermined thickness. A foamed plastic screen is formed, the surface
or any surface of which is a screen for image projection, and a part of the foamed plastic screen
is integrally provided with a speaker as a sound source, The problem is solved by the screen that
appears.
[0016]
In the above, the foamed plastic screen is flat, arc-curved, spherical, etc. for use in a movie
projection screen for a theater etc., a screen for various simulators, a screen for a slide projector,
a display of a projection type television, etc. It is formed into a hemispherical shape or any other
shape, and is subjected to surface treatment such as painting of a paint, pasting of a projection
film, etc., so that the image projection plane thereof conforms to the screen.
[0017]
Embodiment In the embodiment shown in FIGS. 1 to 5, the foam plastic solid body 1 is integrally
provided with a sound source 2 such as a plate 2b made of metal, ceramic or the like, a bar, a
tube 2a etc. It is a foamed plastic resonator device A provided with a percussion-like one to emit.
[0018]
The foamed plastic resonator A1 shown in FIGS. 1 and 3 is a rectangular foamed plastic solid
body 1 in which a plurality of metal or ceramic rods 2a or tubes 2a as a sound source 2 are
integrally established and fixed. , The length of the rod 2a or the tube 2a is adjusted to emit a
sound such as a dremi scale, and tapping the rod 2a or the tube 2a with a scissors etc. causes the
vibration of the rod 2a or the tube 2a to foam It is transmitted to the solid 1 and the foamed
plastic solid 1 resonates to make a loud sound ring.
[0019]
A foamed plastic resonance apparatus A2 shown in FIGS. 2 and 3 has long and short lengths of
metal, ceramic, wood or the like as a sound source 2 on a metal support 3 which is integrally
established and fixed to a rectangular foamed plastic solid 1 integrally. The strip plates 2b are
arranged in parallel and provided like silophone, vibraphone, etc. When the strip plate 2b is
tapped with a scissors etc., the vibration of the strip plates 2c is transmitted to the foam plastic
solid 1 and the foam plastic solid 1 The whole resonates in resonance to make a loud sound.
[0020]
4 and 5, a foamed plastic resonator A3 is formed on the surface of a rectangular foamed plastic
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solid 1 as a sound source 2 and has a disk 2c such as a metal, plastic, ceramic, or wood having
different large and small diameters. Are integrally fixed, and the disc 2c is struck to emit a scale
sound or the like.
[0021]
Embodiment In the embodiment shown in FIGS. 6 and 7, a plurality of metal wires, wires, strings
for stringed instruments 2d, etc. are integrally stretched on the foam plastic solid 1 as the sound
source 2. It is a foamed plastic resonance device A4 that is provided with a string-like instrument
that emits a large sound by striking, repelling or rubbing them with something like a bow of a
violin.
[0022]
Embodiment In the embodiment shown in FIG. 9, a foam plastic solid 1, a wind chisel 4 as a
sound source 2, a play tool for making sounds such as rattles, and a sound producing portion 2e
such as a toy are integrally provided. A foamed plastic resonator A5 that emits a large sound is
provided.
[0023]
Next, the embodiment shown in FIGS. 9 to 11 is a closed-cell foamed plastic such as expanded
polystyrene, which has a flat shape, an arc curved surface, a spherical shape, a hemispherical
shape, or any other desired thickness. The foamed plastic solid 1 is formed, and a foamed plastic
screen 1a whose surface or any surface is a screen for image projection is provided, and a
speaker 2f as a sound source 2 is integrally formed on a part of the foamed plastic screen 1a. It is
the screen B which the sound was provided in preparation for.
[0024]
In the above, the foamed plastic screen 1a is flat, arc curved, spherical or hemispherical for
movie projection screens such as theaters, screens for various simulators, screens for slide
projectors, displays of projection type television etc. Besides, it is formed into an arbitrary shape,
and surface treatment such as painting of a paint, pasting of a projection film, etc. is carried out
so that the image projection plane is adapted to the screen.
[0025]
In the embodiment shown in FIG. 9, a screen B1 for producing a sound according to the present
invention, which is used as a movie projection screen for theaters, etc. A foam plastic screen is
formed, the surface of which is a screen for image projection, and a speaker 2f as the sound
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source 2 is integrally fixed to the back of the foam plastic screen.
[0026]
In the above-mentioned theater or the like, the screen B1 from which the sound for projection of
a movie etc. comes out, the sound of one speaker is transmitted to the whole foam plastic screen,
as if the whole foam plastic screen (self) is like one speaker. Then, from the spectator side, the
sound sounds and sounds like it is being emitted from the entire front of the foam plastic screen.
[0027]
In the embodiment shown in FIG. 10, for example, the screen B2 of the present invention, which
is used as a simulation screen of a simulator apparatus for operation training for automobiles,
aircrafts, etc., is set as a hollow sphere and a hemisphere using polystyrene foam. A foamed
plastic screen is formed by forming a thick foamed plastic solid 1 and using the inner surface as
a screen for image projection, and a speaker 2 f as a sound source 2 is integrally fixed to the
outer surface of the foamed plastic solid 1. It is
[0028]
In the above-mentioned sound producing screen B2, the sound of one speaker 2f is transmitted
to the entire foam plastic screen, and as if the whole foam plastic screen (self) becomes one
speaker, the voice trainee It gives a very good sense of realism that sounds like it sounds from
the surroundings of the trainee and feels like the trainee is in the middle of the outside scene
projected onto the screen.
[0029]
【Effect】 A sound source such as a speaker, etc., in a part of the foam plastic formed in the set
volume in flat plate shape, spherical body shape (non-empty, hollow) or any other shape with
closed-cell foam plastic such as polystyrene foam Loud noise for new and outstanding children,
such as nursery schools and kindergartens, who have never seen or heard so far due to the
foamed plastic resonance device of the present invention integrally provided There is a great deal
of effect that can provide a play equipment, a musical instrument, or a sense of speech learning
device etc.
[0030]
Also, conventionally, speakers for theaters, simulators, projection TVs, etc. have to be provided
with a number of large speaker boxes separately from the screen, and in particular there are
problems with space and cost. However, the speaker from which the sound of the present
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invention comes out has the surface of foam plastic three-dimensional surface etc. as a foam
plastic screen, and a part of the foam plastic screen is integrally provided with a speaker 2g as
sound source 2 So there is an excellent advantage that there is no concern about the installation
space of the speakers, in particular, the sound of one speaker is transmitted over the foam plastic
screen, as if the whole foam plastic screen (self) becomes like a speaker Sound effects are very
good, from the spectator side the sound is in front of the foam plastic screen It has the effect of
hear echoing as emitted from the whole.
[0031]
Also, since most conventional screens are made of fabric, it is extremely difficult to create a
curved or spherical screen, because if the shape of the screen is curved or spherical, slack will
inevitably occur. In the present invention, since the surface etc. of the foamed plastic solid is
made into the foamed plastic screen, the foamed plastic solid can be extremely easily formed into
a flat shape, a curved arc shape, a spherical shape, a hemispherical shape or any other shape.
There is an excellent feature that a flat, arc-shaped, spherical, hemispherical or any other
arbitrary shape screen can be freely and easily provided.
[0032]
Brief description of the drawings
[0033]
1 is an embodiment of the foamed plastic resonance apparatus (percussion type) of the present
invention.
[0034]
2 is an embodiment of the foamed plastic resonance apparatus (percussion-like / vibraphonelike) according to the present invention.
[0035]
3 is a partially enlarged cross-sectional explanatory view of FIG. 1 and FIG.
[0036]
4 is an embodiment of the foamed plastic resonance apparatus (percussion type) of the present
invention.
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[0037]
5 is a partial enlarged cross-sectional view of FIG.
[0038]
6 is an embodiment of the foamed plastic resonance device (stringed instrument) of the present
invention.
[0039]
7 is a partial enlarged cross-sectional view of FIG.
[0040]
8 is an embodiment of the foamed plastic resonance device (wind bell) of the present invention.
[0041]
9 is an embodiment of the screen of the present invention (for movies and the like projection of
theaters etc.).
[0042]
10 is a diagram of an embodiment of the sounding screen (simulator device) of the present
invention.
[0043]
11 is a partial enlarged cross-sectional view showing the fixed state of the speaker of FIG. 10,
FIG.
[0044]
Explanation of sign
[0045]
A Foamed plastic resonance device B1 Sound producing screen (for movies such as theaters) B2
Sound producing screen (simulator device) 1 Foamed plastic solid 1a Foamed plastic screen 2
Sound source 2a to 2f Sound source 3 Column 4 Wind bell
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