KR101207931B1 - Acoustical shell - Google Patents

Abstract

PURPOSE: A sound reflecting plate with the performance for sound absorption and dust prevention is provided to install a vibration source absorber in an internal surface of a front plate or a rear plate, thereby improving performance for sound absorption and dust prevention. CONSTITUTION: A sound reflecting plate with the performance for sound absorption and dust prevention comprises a front plate(10), a rear plate(20), a filling(30), and vibration source absorbers(40A,40B). The filling is connected to a plurality of reverberation discharge holes and comprises a reverberation discharging tube having a plurality of reverberation solution holes. The filling is charged in between the front and rear plates. The vibration source absorbers are made of a fabric or a nonwoven fabric and are comprised in internal surfaces of the front plate and/or the rear plate. Internal and external cross-sectional shapes of the reverberation discharging tube are polygon and penetrate the vibration source absorbers and filling by being fitted into the rear plate.

Description

Sound reflection board with improved sound absorption and dustproofing {ACOUSTICAL SHELL}

The present invention relates to an acoustic reflection plate with improved sound absorption and dustproof function,

More specifically, in the conventional acoustic reflector consisting of a front plate and a rear plate mainly provided on the front and rear surfaces of a honeycomb-shaped filler, a sound source is introduced into the acoustic reflector by introducing a vibration source absorber into the inner surface of the front plate or the rear plate. The present invention relates to an acoustic reflector that solves the problem of causing sound quality by vibrating vibrations.

Conventional patents related to acoustic reflectors installed in a variable or fixed type in concert halls or concert halls include Utility Model Registration No. 20-0422496 (July 20, 2006) [Sound Reflector].

The registration proposal is configured so that the sound emitted by the singer and the performer to check the sound of the singer or the member is reflected to the singer and the performer so that the reflected sound can be returned, and can provide a clearer sound to the audience or the audience. The present invention relates to a sound reflecting apparatus, which is installed in a concert hall, a theater, a stage, a performance hall, and the like to form an acoustic reflecting apparatus for reflecting sound. Vertical reflection members; And a horizontal reflecting member disposed horizontally between the vertical reflecting members so that the emitted sound is reflected back to the singer and the performer so that the singer and the performer can check their own sound or the sound of the unit. Because of this feature, it is possible to improve the quality of performances by facilitating communication between singers themselves or between singers and performers or between performers, and monitoring performances or harmonizing performances. It makes it possible to feel a clearer sound and a sense of realism to the audience or the audience such as the center audience, and to prevent the excessive ringing phenomenon to provide the audience with high quality sound.

In addition, there is a Patent Publication No. 10-2009-0093504 (published date September 09, 2009) [Acoustic reflection panel, vacuum reflective plate and its manufacturing method by vacuum forming method],

The disclosed patent relates to a light reflecting panel, a sound reflecting plate, and a method for manufacturing the same according to a vacuum forming method, which are light and excellent in impact resistance and pressure resistance, and can be used semi-permanently without a plane being deformed or a curved surface being deformed and restored. .

Furthermore, there is Patent Publication No. 10-2010-0035219 (published April 05, 2010) [Ceiling acoustic reflection board with a power-free variable device]

The patent discloses an inverting device which generally suspends a ceiling acoustic reflection plate having a plurality of curved reflection panels for acoustic reflection at a predetermined angle to the ceiling, for example, for simple operation by an operator without using electric power. The present invention relates to a ceiling acoustic reflection plate having a new non-powered variable angle device that allows the ceiling acoustic reflection plate to be easily installed at a desired angle without power consumption without changing the weight and size of the ceiling acoustic reflection plate.

In addition, Utility Model Registration No. 20-0455370 (Registration date: August 26, 2011) includes [Acoustic Reflector Panel and Acoustic Reflector Using It].

The registration proposal is to combine the plurality of reflector panels to form a coupling frame provided at the edge of the reflector panel when the acoustic reflector is installed to enable mutual coupling between each other, without a separate pipe-shaped support frame, it can be firmly combined by simply inter-panel coupling. The present invention relates to a panel for a sound reflection plate having a new configuration, which simplifies the structure of the sound reflection plate, reduces overall weight, and facilitates transportation and storage, and an acoustic reflection plate using the same.

However, these prior arts do not all provide a solution to the problem of impairing the performance of the sound reflection plate by vibrating the sound reflection plate itself by vibrating the sound entered into the sound reflection plate.

Accordingly, the present invention provides an acoustic reflection plate having an improved sound absorption and dustproof function by introducing a vibration source absorber into the inner surface of the front plate or the rear plate to solve the problem of harming the sound quality by causing the vibration not to be solved and causing vibration. It aims to do it.

In another aspect, the present invention is composed of a porous sheet (sheet), in particular woven fabric or non-woven fabric to make the same as the dimensions of the acoustic reflection plate that has been applied to the existing stage, furthermore, the front and back plates and the filling body It is an object of the present invention to provide an acoustic reflector with easy productivity and excellent cost competitiveness.

Furthermore, an object of the present invention is to provide an acoustic reflector that forms a residual discharge hole in the rear plate, or introduces a residual discharge tube in the rear plate to smoothly eliminate the sound causing the vibration.

In order to achieve the object as described above, the sound absorption plate and the sound-absorbing and vibration-improving function according to the present invention are

Front panel;

Backplane;

A filler filled between the faceplate and the backplate; And

Vibration source absorber provided on the inner surface of the front plate or the back plate, or both;

.

In addition, in the sound reflection board with improved sound absorption and dustproofing according to the present invention

The vibration source absorber is made of a woven or nonwoven fabric,

The rear plate has a plurality of residual discharge holes,

It is preferable that a plurality of residual discharge pipes are coupled to the rear plate.

Sound absorbing and anti-vibration improved sound reflection plate according to the present invention by introducing a vibration source absorber on the inner surface of the front plate or the back plate to solve the problem of harming the sound quality by causing the vibration does not solve the sound entered into the sound reflection plate And it is possible to improve the dust-proof function, and the vibration source absorber is composed of a porous sheet (sheet), in particular woven or non-woven fabric to make the same as the dimensions of the acoustic reflection plate applied to the existing stage, and further, the front and rear plates It is easy to attach to the filling body and can provide the acoustic reflector with excellent productivity and cost competitiveness. Furthermore, it forms the afterglow discharge hole on the rear plate or introduces the afterglow discharge tube on the rear plate to produce the sound that causes vibration. I can solve it smoothly.

1 is a perspective view of an acoustic reflector according to the present invention.
Figure 2 is a view of a modification provided with a residual discharge hole on the back plate of the acoustic reflection plate according to the present invention.
Figure 3 is a cross-sectional view of a modification provided with a residual discharge pipe on the rear plate of the acoustic reflection plate according to the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will now be described in detail with reference to the accompanying drawings.

The present invention may be modified in various ways and may have various forms, and thus embodiments (or embodiments) will be described in detail in the text. However, this is not intended to limit the present invention to the specific form disclosed, it should be understood to include all modifications, equivalents, and substitutes included in the spirit and scope of the present invention.

In the drawings, the same reference numerals are used for the same reference numerals, and in particular, the numerals of the tens and the digits of the digits, the digits of the tens, the digits of the digits and the alphabets are the same, Members referred to by reference numerals can be identified as members corresponding to these standards.

In addition, in the drawings, the components are exaggerated in size (or thickness), in size (or thickness), in size (or thickness), or in a simplified form or simplified in view of convenience of understanding. It should not be.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. Singular expressions include plural expressions unless the context clearly indicates otherwise. In the present application, the term " comprising " or " consisting of ", or the like, refers to the presence of a feature, a number, a step, an operation, an element, a component, But do not preclude the presence or addition of one or more other features, integers, steps, operations, components, parts, or combinations thereof.

Unless defined otherwise, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Terms such as those defined in commonly used dictionaries are to be interpreted as having a meaning consistent with the contextual meaning of the related art and are to be interpreted as either ideal or overly formal in the sense of the present application Do not.

When describing the sound reflection board (A) with improved sound absorption and vibration damping function according to the present invention, the non-strict approximate direction reference is specified with reference to FIGS. 1 and 2 for convenience.

The front plate 10 side is the front, the rear plate 20 side is the back, and the front and rear face plates 10, 20 and the contact surface between each of the filling body 30 is defined as the inner surface, and the description related to the other drawings also meets this standard. Specify the direction accordingly.

First, as shown in a perspective view and a cross-sectional view in the lower one-dot chain line circle of FIG. 1, the acoustic reflection plate A having improved sound absorption and dustproofing according to the present invention includes a front plate 10, a rear plate 20, and two (10). It includes a filler 30 provided between the (20), and is provided with a vibration source absorber provided on the inner surface of the front plate or the back plate, or both.

The vibration source absorber, which is one of the cores of the present invention, has a function of an acoustic reflection plate that causes various sounds such as voices or musical instruments at a performance stage or a concert hall to be inclined toward the audience, and inevitably enters (or penetrates) into the acoustic reflection plate. Situation interrupted by 音,

In other words, the sound that enters (or penetrates) into the acoustic reflector causes vibrations inside the acoustic reflector, causing a 'loud' hum or other noise to interfere with the apparent sound effects. do.

The vibration source absorber is preferably composed of a porous sheet, in particular a woven or nonwoven fabric.

More specifically, the porous sheet-type vibration source absorber 40A, 40B is provided on the inner surface of the front plate or the back plate, or both, particularly on the front and rear surfaces of the front plate 10, 20 and the filler 30,

In consideration of productivity and cost competitiveness, the sheet type vibration source absorber 40A, 40B is more preferably attached to the inner surface of the front plate or the rear plate.

Acoustic reflector A according to the present invention may be provided on the stage back of the stage or concert hall, ceiling, side walls of the auditorium, etc., and may have various shapes in addition to the illustrated curved shape.

It is preferable that the front plate 10 has a hard property in order to improve reflectivity, and the front surface (surface) is smoothly processed (or coated or coated). It is generally made of wood, in particular plywood, middle density fiberboard (MDF) or high density fiberboard (HDF).

The back plate provides shape retention characteristics, protects the filling body, and ensures the assemblability of the acoustic reflection plate laminated using various frames (or walls) provided on the rear surface. In consideration of ease of production and sound reflection characteristics, such as the front plate 10 is made of a hard material, in particular wood, plywood, MDF or HDF.

The filler 30 is preferably to provide a light-weight property of the acoustic reflection plate, provide a shape holding force, and provide sound absorption characteristics, and typically has a honeycomb type structure having various structures, such as paper.

If necessary, the sound reflection plate is made of flameproofing, flameproof treatment, etc., and a frame such as an aluminum material may be arranged between the front and rear faceplates 10 and 20 therein to maintain a unique curved shape.

In addition, the edge of the acoustic reflector (A) may be provided with a profile (not shown) of a conventionally known aluminum material,

This profile covers the filler 30 and has a coupling structure for interconnecting the acoustic reflector and the acoustic reflector.

The porous sheet-type vibration source absorbers 40A, 40B, front and rear plates 10, 20, and the filler 30 are respectively bonded to each other using an adhesive or other adhesive means.

On the other hand, according to the present invention, the sound reflection plate (A) with improved sound absorption and dustproof function has a plurality of residual discharge holes (21) formed on the rear plate (20), regular or irregular, so that the afterglow that enters the sound reflection plate quickly It is desirable to be able to resolve to the back of the backplane.

In addition, the residual discharge hole 41 may be formed in the vibration source absorber 40B on the inner surface of the rear plate in addition to the one formed in the rear plate 20 (see FIG. 2 [A]). 2 [B]).

Furthermore, the residual discharge hole is formed in the filling body 30 or the vibration source absorber 40A on the inner surface of the front plate, and furthermore, the residual discharge hole is also provided in the profile provided around the acoustic reflection plate to contact the acoustic reflection plate and the acoustic reflection plate. It can help to improve dustproofing function by eliminating afterglow that penetrated into

In addition, the residual discharge hole formed in each member may be in communication with each other. The number, arrangement position, and size of the residual discharge holes are preferably optimized so as not to impair the acoustic reflection function of the acoustic reflection plate A itself, the dust absorption function of the vibration source absorber, and the original function of the filling body and the profile. Or ellipses, other polygons, or indeterminate forms.

Next, as shown in Figure 3, the rear plate 20 is coupled to a plurality of residual exhaust pipe (T, see the perspective view in the dashed circle in the lower part of Fig. 3 [A]) to eliminate the residual noise that penetrated into the acoustic reflection plate It can help more.

In Fig. 3A, the residual discharge pipe Ta is embedded in the rear plate 20,

In FIG. 3B, the residual discharge pipe Tb penetrates up to the vibration source absorber 40B.

In FIG. 3C, the residual discharge pipe Tc penetrates up to the filling body 30.

For reference, in FIG. 3A, the residual discharge tube Ta embedded in the rear plate 20 is not shown, but the residual discharge tube is a vibration source absorber 40B, 40A, filler 30, profile, etc. It can be configured in conjunction with the discharge hole.

The material of the residual sound absorption pipe may be made of wood, synthetic resin, paper, etc., and the number, arrangement position, and size of the residual sound discharge pipe are the acoustic reflection function of the acoustic reflection plate (A) itself, the suction function of the vibration source absorber, and the filling. It is desirable to optimize the sieve and the profile so as not to harm the original function.

As can be seen from the perspective view in the dashed-dotted circle in the lower part of FIG. 1A, the shape of the residual discharge pipe T preferably has a polygonal shape such as a quadrangle or a triangle, but has an asterisk or other regular irregular shape. Do.

That is, it is preferable that the residual noise discharge tube is not circular or elliptical. If the residual discharge tube has a smooth inner surface or an outer surface or an inner or outer surface of a circular or elliptical shape, the residual sound having a curved waveform is amplified by vibration and resonance. Compared to being able to double the effect,

This is because if the inner and outer surfaces of the residual exhaust pipe are non-circular, such as polygons, the residual noise is suitable to be destroyed by colliding with the inner and outer surfaces of the residual exhaust pipe.

Furthermore, as can be seen from the perspective view in the dashed-dotted circle in the lower part of FIG. 1A, the afterglow discharge pipe T is formed with a large number of afterglow scavenging holes T1, which can greatly contribute to the afterglow discharge, elimination and removal. .

The number, arrangement position, size, etc. of the after-break holes T1 may be variously selected as necessary. Can be introduced.

In the above description, the conventionally known techniques related to the concrete material, size, shape, mutual assembly, and installation structure of the acoustic reflection board are omitted, but those skilled in the art can easily infer, infer, and reproduce the same.

In addition, in the above description of the present invention, the sound reflection plate having a specific shape and structure has been described with reference to the accompanying drawings, but the present invention can be variously modified, changed, and replaced by those skilled in the art. It should be interpreted as falling within the protection scope of the present invention.

A: Acoustic reflector 10: Front panel
20: rear panel 30: filler
40A, 40B: vibration source absorber T, Ta, Tb, Tc: residual discharge pipe
21, 41: afterglow discharge T1: afterglow

Claims (4)

Front panel 10;
A back plate 20 communicating with a plurality of residual discharge holes 21 and including a residual discharge pipe T having a plurality of residual residual holes T1;
A filler 30 filled between the front plate and the back plate; And
A vibration source absorber (40A) (40B) made of a woven or nonwoven fabric and provided on the inner surface of the front plate (10) or the rear plate (20), or both; , ≪ / RTI >
The residual discharge pipe (T) has a polygonal cross-sectional shape of the inner and outer surfaces,
The remnant exhaust pipe (T) is embedded in the back plate 20, the sound absorbing and vibration-proof sound absorption plate, characterized in that penetrating through the vibration source absorber (40A) (40B) and the filler (30).
The method of claim 1,
The residual sound discharge tube (T) is an acoustic reflection plate with improved sound absorption and dustproof, characterized in that the inner and outer surface cross-sectional shape. delete delete

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