JP2002064898A - Foamed plastic resonator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To overcome the problem such that although independent bubble foamed plastic exhibits significantly excellent sound conduction performance and vibration transmission performance on contrary to acoustic performance of continuous bubble foamed plastic, these characteristics are not utilized nor applied at all in the prior art but unknown or undeveloped state is left as it is. SOLUTION: A foamed plastic cube 1 is provided integrally with a sound source of a metallic or ceramic plate, a rod, a pipe, a wire, a string, a band, or the like, so that an article like a music instrument generating a large sound is provided. The foamed plastic cube 1 having an arbitrary shape is formed of independent bubble foamed plastic, e.g. foamed styrol, a foamed plastic screen 1a having a surface serving as an image projection screen is provided, and a sound generating screen is obtained by providing a sound generating source, i.e., a speaker 2f, integrally at a part of the foamed plastic screen 1a.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[Industrial application] A sound source (eg, plate,
(Rod, tube, wire (string), string, band, etc., or various speakers)
The present invention relates to a foamed plastic resonance device or a screen that emits sound, and mainly provides play equipment, musical instruments, or sound learning tools for children, such as nursery schools and kindergartens, for children, and for theaters and the like. Provide a screen with loud sound from the entire screen.

[0002]

2. Description of the Related Art Foamed plastics are closed cells in which cells are closed one by one, for example, styrofoam (polystyrene foam), vinyl chloride foam, foamed ABS, etc., and open-cell foamed air cells are connected. Things, for example, foamed polyethylene, foamed polyurethane, etc.,

[0003] Among the above, open-cell foams are widely used as excellent sound-absorbing materials because of their extremely high sound-absorbing properties.

On the other hand, foamed plastics having closed cells, for example, styrofoam, have excellent characteristics of very high sound conductivity and vibration transmission, contrary to the sound absorbing properties of the open-cell plastics. However, in the past, there has been no use or application of this characteristic at all, and it has been left unknown and undeveloped, and its effective use and application have been issues.

Conventionally, speakers for theaters, simulators, projection televisions, and the like have to be provided with a number of large speaker boxes in addition to the screen, which is particularly disadvantageous in terms of space and cost. there were.

Further, since most conventional screens are made of cloth, if the shape of the screen is made to be a curved surface or a spherical surface, the screen is inevitably loosened, so that there is a problem that it is extremely difficult to form a curved or spherical screen. .

[0007]

Therefore, the inventor (applicant)
As a result of trial and error in consideration of effective use of the above characteristics, the solid body of the set volume of the foamed plastic and the sound source (one that generates sound as vibration, for example, speakers of various electric and electronic acoustic devices) are integrated ( If the sound of the sound source is transmitted directly from the sound source to the three-dimensional plastic foam, the sound of the sound source will be transmitted to the three-dimensional It is transmitted to the whole (total volume), and it is amplified by resonance resonance,
The present invention has been developed by developing that the sound itself is enlarged and sounds from the whole, the whole surface, or the front surface (such as a screen) of the three-dimensional object as if it were one speaker (loudspeaker, loudspeaker). It is what went.

[0008]

That is, the present invention relates to a part of a foamed plastic solid formed in a set volume in a flat, spherical (empty, hollow) or any other shape using closed-cell foamed plastic such as styrene foam. In addition, a problem is solved by a foamed plastic resonance device, which is provided with a sound source such as a speaker.

In the above, as the closed-cell foamed plastic, expanded polystyrene (expanded polystyrene) (Example) is optimal in terms of performance, cost, etc.
S, hard foamed PVC, and other closed-cell foamed plastics can also be implemented.

[0010] The three-dimensional 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) and other shapes, dimensions, and the like are completely arbitrary depending on the purpose. However, the larger the volume of the solid, the greater the effect of expanding the sound by resonance resonance.

Means for integrally providing the sound source in a part of the foamed plastic body include fixing, fixing, adhering, embedding, contacting, etc., and are provided so that the vibration of the sound source can be directly transmitted to the foamed plastic body.

The sound source is a movie projector, various simulators, a television, a video, a DVD, a personal computer, a tape recorder, a CD, an MD, other components, a player, various speakers of various electric / electronic sound equipment,

[0013] Alternatively, the vibration of sound generated by hitting, flipping, rubbing, or the like of a plate, rod, pipe, wire (string), string, band, or the like of metal, ceramic, plastic, wood, or the like is transmitted to a foamed plastic solid. Boards, rods, tubes, wires (strings), strings, bands, etc.

Alternatively, it is a sound-producing portion of a toy, play equipment, or the like that emits a sound such as a wind chime or rattle.

[0015]

According to the present invention, there is further provided a closed-cell foamed plastic, such as styrene foam, which forms a three-dimensional foamed plastic solid having a set thickness in a planar shape, an arcuate curved shape, a spherical shape, a hemispherical shape, or any other shape. A screen that emits sound, characterized in that a foamed plastic screen whose surface or any surface is a screen for projecting an image is provided, and a speaker as a sound source is integrally provided in a part of the foamed plastic screen. This solves the problem.

In the above description, the foamed plastic screen is used as a screen for projecting a movie such as a theater, a screen for various simulators, a screen for a slide projector, a display of a projection television, or the like. It is formed in a hemispherical shape or any other shape, and is subjected to surface treatment, for example, coating of paint, application of a projection film, etc., so that the image projection surface is adapted to the screen.

[0017]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The embodiment shown in FIGS. 1 to 5 is a percussion instrument which emits a loud sound by integrally providing a sound source 2 such as a metal or ceramic plate 2b, a rod, a tube 2a, etc. on a foamed plastic solid 1. This is a foamed plastic resonance device A provided with the above.

The foamed plastic resonance apparatus A1 shown in FIGS. 1 and 3 has a sound source 2
A plurality of metal or ceramic rods 2a or tubes 2a are integrally established and fixed, and the length of the rods 2a or tubes 2a is adjusted to emit a sound such as a Doremi scale. Then, when the rod 2a or the tube 2a is hit with a hammer or the like, the vibration of the rod 2a or the tube 2a is transmitted to the foamed plastic three-dimensional body 1, and the foamed plastic three-dimensional body 1 resonates and makes a loud sound. .

The foamed plastic resonance apparatus A2 shown in FIGS. 2 and 3 has a long, short or short metal, ceramic, wood, or the like as a sound source 2 on a metal column 3 integrally established and fixed to a rectangular foamed plastic solid 1. When the strip 2b is hit with a hammer or the like, the vibration of the strip 2c is transmitted to the foamed plastic solid 1 and the strip plastic 2D is provided. The whole resonates and makes a loud sound.

A foamed plastic resonator A3 shown in FIGS. 4 and 5 is provided on the surface of a rectangular foamed plastic three-dimensional body 1.
As the sound source 2, a disk 2c of metal, plastic, ceramic, wood, or the like having large and small diameters is integrally fixed, and the disk 2c is hit to emit a scale sound.

[0021]

In the embodiment shown in FIGS. 6 and 7, a plurality of metal wires, wires, strings for stringed musical instruments 2d, etc., are integrally stretched as a sound source 2 on a foamed plastic solid body 1 and they are attached. This is a foamed plastic resonance device A4 that is provided with a stringed instrument that emits a loud sound by being hit, played, or rubbed with a violin bow or the like.

[0022]

In the embodiment shown in FIG. 9, a foamed plastic body 1, a wind chime 4 as a sound source 2, a playground equipment such as a toy that emits a sound such as rattle, and a sounding portion 2e such as a toy are integrally provided to produce a large sound. This is provided with a foamed plastic resonance device A5 that emits light.

[0023]

Next, the embodiment shown in FIGS. 9 to 11 is a closed-cell foamed plastic such as styrofoam.
A foamed plastic screen 1a having an arcuate curved surface shape, a spherical shape, a hemispherical shape, or any other arbitrary shape and a set thickness is formed, and a surface or any surface thereof is provided as a foamed plastic screen 1a having a screen for projecting an image. This is a screen B from which sound is provided, which is provided integrally with a speaker 2f as a sound source 2 on a part of the screen 1a.

In the above description, the foamed plastic screen 1a is used as a screen for projecting a movie such as a theater, a screen for various simulators, a screen for a slide projector, a display for a projection television, etc. And any other shape, and surface treatment such as coating of paint, application of a projection film, etc., so that the image projection surface matches the screen.

The embodiment shown in FIG. 9 is a screen B for producing sound according to the present invention, which is used as a screen for projecting a movie such as a theater.
A foamed plastic screen 1 having a predetermined thickness is formed in a plane or an arc plane by using styrofoam, and a foamed plastic screen whose surface is used as a screen for projecting an image is provided. A speaker 2f serving as a source 2 is integrally fixed.

The screen B1 of the theater or the like, which emits sound for projecting a movie or the like, transmits the sound of one speaker to the entire foamed plastic screen, and as if the entire foamed plastic screen (itself) is a single speaker. Then, the audience hears the sound as if it were emitted from the entire front of the foamed plastic screen.

The embodiment shown in FIG. 10 is, for example, an automobile,
A screen B2 which emits a sound according to the present invention, which is used as a simulation screen of a simulator for operation training of an aircraft or the like, is formed into a hollow spherical, hemispherical, foamed plastic solid body 1 having a set thickness using styrene foam, and an image of the inner surface thereof is formed. A foamed plastic screen as a projection screen is provided, and a speaker 2f as a sound source 2 is integrally fixed to the outer surface of the foamed plastic solid body 1.

The screen B2 from which the sound is output is such that the sound of one speaker 2f is transmitted to the entire foamed plastic screen, and as if the entire foamed plastic screen was used.
The sound itself resounds around the trainee, as if it were a single speaker, and the trainee has a very realistic sensation, as if he were in the middle of the exterior projected on the screen. can get.

[0029]

[Effect] A sound source such as a speaker is integrated with a part of a foamed plastic solid formed of a flat, spherical (empty, hollow) or other arbitrary shape with a set volume by using closed-cell foamed plastic such as styrene foam. New and excellent playground equipment for young people such as nursery schools, kindergartens, etc. that have never been seen or heard by the foamed plastic resonator of the present invention provided in preparation for There is a great effect that it is possible to provide a musical instrument, a musical tone learning tool, or the like.

Conventionally, speakers for theaters, simulators, projection televisions, and the like have to be provided with a number of large speaker boxes separately from the screen, and are particularly disadvantageous in terms of space and cost. There was,
On the other hand, the speaker according to the present invention, which produces a sound, has a three-dimensional surface of a foamed plastic as a foamed plastic screen, and a part of the foamed plastic screen is provided integrally with a speaker 2 g as a sound source 2. It has an excellent advantage that there is no need to worry about installation space. Especially, the sound of one speaker is transmitted to the whole foamed plastic screen, and the whole foamed plastic screen (itself) becomes like one speaker, the sound effect The sound is so good that the audience hears the sound as if it were emitted from the entire front of the foamed plastic screen.

Further, since most conventional screens are made of cloth, if the shape of the screen is made to be curved or spherical, loosening will inevitably occur, and it is extremely difficult to produce a curved or spherical screen. In the present invention, since the surface or the like of the foamed plastic solid is formed into a foamed plastic screen, the foamed plastic solid can be extremely easily formed into a planar shape, an arc curved surface shape, a spherical shape, a hemispherical shape, or any other shape. There is an excellent feature that a screen of any shape, such as flat, arc-shaped, spherical, hemispherical and any other shape can be freely and easily provided.

[Brief description of the drawings]

FIG. 1 shows a foamed plastic resonator of the present invention (percussion instrument shape).
FIG.

FIG. 2 is an embodiment diagram of a foamed plastic resonance device (percussion instrument type / vibraphone type) of the present invention.

FIG. 3 is a partially enlarged sectional explanatory view of FIGS. 1 and 2;

FIG. 4 is a foamed plastic resonator of the present invention (percussion instrument shape).
FIG.

FIG. 5 is a partially enlarged sectional view of FIG. 4;

FIG. 6 is a foamed plastic resonator of the present invention (stringed musical instrument).
FIG.

FIG. 7 is a partially enlarged sectional view of FIG. 6;

FIG. 8 is an embodiment view of a foamed plastic resonance device (wind chime) of the present invention.

FIG. 9 is a view showing an embodiment of a screen (for projecting a movie or the like in a theater or the like) according to the present invention.

FIG. 10 is a diagram showing an embodiment of a screen (simulator device) that emits sound according to the present invention.

FIG. 11 is a partially enlarged cross-sectional view showing a fixed state of the speakers of FIGS. 10 and 11;

[Explanation of symbols]

 A Foamed plastic resonance device B1 Screen with sound (for projecting movies etc. in theaters etc.) B2 Screen with sound (simulator device) 1 Foamed plastic solid 1a Foamed plastic screen 2 Sound source 2a-2f Sound source 3 Prop 4 Wind chime

Claims (10)

[Claims] 1. A sound source, such as a speaker, is provided on a part of a foamed plastic solid formed in a flat, spherical (empty, hollow), or other arbitrary shape with a set volume by using closed-cell foamed plastic such as styrene foam. A foamed plastic resonator characterized by being integrally provided. 2. The foamed plastic resonator according to claim 1, wherein the closed-cell foamed plastic is foamed polystyrene (foamed polystyrene), foamed ABS, hard foamed vinyl chloride, or another foamed plastic with closed cells. 3. The three-dimensional foamed plastic is a flat plate, a curved plate, a square, a rectangle, a sphere (empty, hollow),
The foamed plastic resonator according to claim 1, wherein the foamed plastic resonator is provided in a hemispherical shape (empty, hollow) or any other shape. 4. The foamed plastic resonance apparatus according to claim 1, wherein the means for integrally providing the sound source in a part of the foamed plastic solid body is fixed, fixed, adhered, buried, contacted, or the like. 5. The sound source may be a movie projector, various simulators, a television, a video, a DVD, a personal computer, a tape recorder, a CD, a MD, other components, a player, various speakers of various electric / electronic sound equipment, or a metal. Board of ceramic, plastic, wood, etc.
Plates, rods, tubes, wires (strings), strings, belts, etc. that transmit the vibration of sound generated by striking, flipping, friction, etc., to rods, tubes, wires (strings), strings, bands, etc. The foamed plastic resonance device according to claim 1, wherein the foamed plastic resonance device is a sound emitting portion of a toy, a playground equipment, or the like that emits a sound such as a wind chime or rattle. 6. A percussion instrument which emits a loud sound by integrally providing, as a sound source, a plate, a rod or the like of metal, ceramic, plastic, wood or the like on a foamed plastic solid body. Foam plastic resonator. 7. A three-dimensional foamed plastic body integrally provided with a metal wire, a wire, a string for a stringed musical instrument, or the like, as a sound source, is provided on a three-dimensional foamed plastic body. The foamed plastic resonator of claim 1. 8. A sound source as a sound source, such as a plaything or a toy, which emits sound such as a three-dimensional wind chime or rattle, is integrally provided with a plaything or a toy that emits a loud sound. The foamed plastic resonator of claim 1. 9. A closed-cell foam plastic, such as styrofoam or the like, having a set thickness in a planar shape, an arc-curved surface shape, a spherical shape, a hemispherical shape, or any other shape.
A screen that emits sound, characterized in that a foamed plastic screen whose surface or any surface is a screen for projecting an image is provided, and a speaker as a sound source is integrally provided in a part of the foamed plastic screen. . 10. A foamed plastic screen is used as a screen for projecting a movie such as a theater, a screen for various simulators, a screen for a slide projector, a display for a projection television, etc.
10. The screen according to claim 9, wherein the screen is formed into a spherical shape, a hemispherical shape, or any other shape, and the image projection surface is surface-treated so as to fit the screen.