JPH10246284A - Insulator for audio device, audio device, and reproducing method thereof - Google Patents

Abstract

PROBLEM TO BE SOLVED: To uniformly reproduce sound from a low compass to a high compass by using a laminated body laminating metallic plates of at least two sorts of different materials for an insulator. SOLUTION: A laminated body is different according to the sort of an audio device, and it is constituted by laminating metallic plates of different materials or glass plates so as to contact with each other. For example, in an amplifier, brass plates 6b, 6b are laminated on and beneath an aluminum alloy plate 6a. The brass plate 6b is provided with a circular hole to be fitted to the projecting part 6c provided on the upper/lower faces on the center part of the aluminum alloy plate 6a. By forming the laminated body 6, the aluminum alloy plate 6a and the brass plates 6b are fixed to each other. Hereby, even if the sound volume is raised, it is clear and does not become noise, and even if the sound volume is lowered, powerful sound can be reproduced, and the fundamental tone in a soft such as CD can be drawn out by 100%.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an insulator for an audio device, an audio device using the same, and a method of reproducing the audio device.

[0002]

2. Description of the Related Art In the field of audio, audio equipment manufacturers such as amplifier manufacturers and speaker manufacturers search for sounds that are as close as possible to the original sound.
On the other hand, from the listener's point of view, the renovation of the listening room, the arrangement of each component, the arrangement of furniture, etc. are pursuing the original sound, pursuing 100% of the original sound possessed by software such as CDs, and listening listeners' preference. The purpose is to pursue matching sounds. As one means for pursuing such high sound quality, there is an insulator for an audio device.

Conventionally, as such an insulator for an audio device, a concrete block used as a speaker stand, an insulator mainly composed of an elastic material having a high vibration absorbing property (JP-A-5-263872), a floor material, In order to obtain the resonance blocking effect, there has been known an insulator (JP-A-8-79867) mainly composed of a hollow body having a sealed hollow portion therein.

[0004]

However, the means for pursuing the original sound, the means for extracting 100% of the original sound of the software, and the means for pursuing the sound that matches the taste are not sufficient at present. For example, even if you take an insulator, the weight of equipment that can use the insulator is limited, the price is high and you cannot get enough sound quality, and you can only get the sound quality determined by the insulator, and it changes to your favorite sound quality There were problems such as being unable to do so. Another problem is that it is difficult to obtain sound quality comparable to that of a high-end CD deck or amplifier by using an insulator for a so-called intermediate CD deck or amplifier. In addition, CD with insulator
There was a problem that the original sound of such software could not be extracted 100%.

On the other hand, when a recorded concert is reproduced and listened to using an audio device, it is possible to adjust the volume, the high range and the low range using volume control, loudness control and tone control. However, all of them have a problem that sound quality is deteriorated. For this reason, by changing the speaker setting and taking into account the reflection state of the sound and taking the overall balance, the sound is played as the sound that matches the taste of the listener, but it is played evenly from the low range to the high range However, it was difficult to obtain a clear sound even when the volume was increased, and to obtain a powerful sound even when the volume was decreased, due to the influence of the vibration of the CD deck and the amplifier. For this reason,
To get 100% of the original sound of the software or to get a sound that matches your taste, use a high-priced amplifier or C
There is a problem that an audio device such as a D deck must be used.

The present invention has been made to address such a problem, and reproduces sound evenly from a low range to a high range, so that even if the volume is increased, clear and no noise is produced, and a strong sound is produced even when the volume is decreased. The resulting insulator for audio equipment,
It is an object of the present invention to provide an audio device and a reproduction method of the audio device using the same.

[0007]

An insulator for an audio device according to the present invention comprises a laminate, and the laminate is formed by laminating at least two or more types of metal plates having different materials.

Further, the insulator for an audio device of the present invention is characterized in that the laminated body is further laminated with a glass plate.

Further, the insulator for an audio device of the present invention is characterized in that the metal plates constituting the laminate are an aluminum-based metal plate and a copper-based metal plate.

[0010] In the insulator for an audio device of the present invention, the laminated body is formed by laminating brass plates above and below an aluminum alloy plate, and has convex portions on upper and lower surfaces of the aluminum alloy plate. The brass plate has a concave portion that fits into the brass plate.

The audio device of the present invention has at least three
It is characterized in that a plurality of points or more are supported by a support member, and the support member is the above-described insulator for an audio device.

The audio device reproducing method according to the present invention is a method for reproducing an audio device after supporting at least three or more points on a bottom surface of the audio device with a support member. After using and supporting the audio device, the audio device is reproduced. Here, to reproduce the audio device means to turn on the audio device and output a music signal recorded on a recording medium such as a tape or a CD or input by a radio wave or a microphone from a speaker or the like.

The aluminum-based metal according to the present invention refers to pure aluminum or an aluminum alloy. The copper-based metal refers to pure copper or a copper alloy.

According to the present invention, as a result of repeating a number of experiments on an insulator for an audio device, the use of the above-mentioned laminate enables uniform reproduction from a low-frequency range to a high-frequency range. It is possible to play a powerful sound from the audio device even if it is lowered.
It is based on the finding that 100% of the original sound of software such as D can be extracted. Audio equipment
Due to self-excited vibration generated inside and externally-excited vibration transmitted from other devices, not only visible vibration but also visually invisible vibration is constantly maintained. In addition, during audio reproduction, the intensity and frequency of the current flowing through the circuit and the cord naturally fluctuate. Therefore, a magnetic field is generated or fluctuates around the circuit or the code. As a result, generation and fluctuation of such a magnetic field are considered to affect sound quality because a mixed current is mixed in circuits and cords. For example,
In an audio device, a connection cord is made of a copper wire as close as possible to a single crystal, for example, a single crystal high-purity oxygen-free copper (PCOCC) in order to suppress vibration of electrons at a crystal grain boundary.
In some cases, is used. In this way, even the vibration of the connection cord for transmitting the electric signal is taken into consideration.

The insulator for an audio device of the present invention constitutes a laminate by laminating at least two or more metal plates of different materials or, depending on the device, a laminate with a glass plate. It is considered that the combination with each metal plate or glass plate further enhances the electric signal that has a favorable effect on the sound quality, and makes the sound quality thick and thin.

[0016]

BEST MODE FOR CARRYING OUT THE INVENTION The laminate according to the present invention is obtained by laminating at least two types of metal plates having different materials, and the thickness and shape of the plates can be arbitrarily selected.
For example, when used as an insulator for an amplifier of about 100 W, the size of each plate constituting the laminate is 20 to 100 mm on one side, preferably 10 to 100 m.
m, more preferably a square of 40-80 mm, with a thickness of 0.5-50
mm, preferably 2 to 50 mm, and more preferably 5 to 30 mm, is suitable for reproducing evenly from low to high frequencies with excellent sound quality. Among squares, a preferable result is obtained particularly when a square is used. This is thought to be because the direction of the vertices of the square can be changed. Further, as long as the plane area is within the above range, it may be circular or polygonal.

As the metal plate, a combination of an aluminum-based metal plate and a copper-based metal plate is preferable. In particular, a brass plate made of an alloy of copper and zinc is preferably used as a component of the laminate. Also, among brass, copper 6
A brass of 0% by weight and 40% by weight of zinc is preferred. This is probably because brass instruments, piano strings, and guitar strings are made of brass metal. Further, in the case of a brass plate, the sound quality is affected by the rolling direction of the plate, so that by changing the rolling direction of the plate, the sound can be changed to a sound more preferable for the listener.

The structure of the laminate differs depending on the type of the audio device, but it is preferable that the laminates are made such that metal plates or glass plates of different materials are in contact with each other. For example, in an amplifier, it is preferable to alternately laminate brass plates and aluminum-based metal plates.
For example, a brass plate, an aluminum-based metal plate, a brass plate, and an aluminum-based metal plate are preferably laminated in this order from the installation surface. In a CD deck, an aluminum-based metal plate and a brass plate are preferably used. A glass plate can be laminated between the plate and the aluminum-based metal plate. For example, it is preferable to laminate an aluminum-based metal plate and a brass plate in this order from the installation surface, or to laminate an aluminum-based metal plate, a glass plate, and a brass plate. When at least two or more identical metal plates are laminated with different metal plates or the like interposed therebetween, it is preferable that the same thickness is used, particularly in the case of a brass plate.

In the structure of such a laminate, it is preferable to further consider the thickness and shape of each plate. In the above case, specifically, when a square plate of about 60 mm × 60 mm square is used, in the amplifier,
5 ± 3mm thick brass plate, 25 ± 20mm in order from installation surface
, Preferably 25 ± 17 mm, more preferably 25 ± 10 m
It is preferable to laminate with an aluminum metal plate with a thickness of 5 m, a brass plate with a thickness of 5 ± 3 mm, and an aluminum metal plate with a thickness of 15 ± 7 mm. Metal plate, 5
It is preferable to laminate with a glass plate of ± 3 mm thickness and a brass plate of 5 ± 3 mm thickness. In the case of CD software having excellent recording technology, an aluminum-based metal plate having a thickness of 25 ± 10 mm or a glass plate having a thickness of 5 ± 3 mm may be used. 5 ± 3mm for combination of aluminum-based metal plate and brass plate
It is preferable to use a thick brass plate, a 25 ± 20 mm aluminum metal plate, and a 5 ± 3 mm thick brass plate.

In the case of the above combination, for example, 25 m
15mm thick and 10m thick aluminum-based metal plate
It is preferable to directly laminate a metal plate or a glass plate having a required integral thickness, instead of adjusting the thickness with an adhesive or the like after adjusting the thickness. Further, it is preferable not to use an adhesive or the like between the layers of the laminate. For this reason, it is preferable that the surface of the metal plate or the glass plate has a smooth surface that makes uniform contact with each other. For example, it is preferable to form a smooth anodic oxide film on the surface of an aluminum-based metal plate.

Incidentally, means for fixing each layer of the laminate may be provided. As such means, a method of providing a convex or concave portion on one of the layers and stacking layers having a concave or convex portion to be fitted thereto, a method of providing a hole at the same position of each layer, a side or A notch for fixing is provided at the corner,
A method of providing a fixing member to be fitted into these holes or cutouts on an installation surface or the like can be given.

An example of a preferable means for fixing each layer of the laminate will be described with reference to FIG. FIG. 1A is a plan view of an insulator to which each layer is fixed, and FIG. 1B is a cross-sectional view taken along the line AA in FIG. Brass plates 6b, 6b are laminated above and below the aluminum alloy plate 6a. A convex portion 6c is formed on the upper and lower surfaces of the central portion of the aluminum alloy plate 6a, and a circular hole that fits into the convex portion 6c is provided in the brass plate 6b. With such a laminate 6, the aluminum alloy plate 6a and the brass plate 6b are fixed to each other. The brass plate 6
The concave portion b may not be circular but may be polygonal.

The convex portion 6c of the aluminum alloy plate 6a
Any thickness may be used as long as the brass plate 6b can be fixed and stacked, and the metal plates of different materials can be stacked on each other. An example of the thickness is 5 to 90 times the thickness of the brass plate 6b.
%, Preferably 10 to 30%. When the thickness of the convex portion 6c is within this range, the effect of the dissimilar metal lamination can be sufficiently exerted. In addition, the convex part 6c is an aluminum alloy plate 6a.
It is preferable that the diameter is 20 to 40% of the length of one side of the square, and the diameter of the circular hole in the brass plate is the convex portion 6c. It is preferable that the diameter is smaller than the diameter of the support leg of the audio device.

If two or more kinds of metal plates of different materials are laminated, or if glass is laminated thereon, paper or the like can be laminated between them.

One example of the use of the insulator for an audio device of the present invention comprising a laminate will be described with reference to FIG.
FIG. 2 shows an example applied to a pre-main amplifier.
2A shows a front view, and FIG. 2B shows a bottom view.
As shown in FIG. 2A, a supporting leg 5 is provided on the bottom surface of the pre-main amplifier 1 having a power switch 2, a volume 3, an input selector 4, and the like. The pre-main amplifier 1 is normally supported by the supporting leg 5. ing. In the present invention, an insulator for an audio device of the present invention, which is composed of a laminate 6, is further disposed below the support leg 5.

The method of arranging the laminates 6 is not particularly limited, but in the case of a square laminate, it is preferable to arrange the diagonal lines so as to coincide with the vertical and horizontal lines of the audio device when viewed in plan ( FIG. 2 (b). In particular, in the case of a laminate of metal plates or a laminate of a metal plate and a glass plate, excellent sound quality was obtained by such an arrangement. Further, the insulator for an audio device of the present invention can be used as a support leg of the audio device, or may be arranged below an existing support leg as shown in FIG.

The audio device of the present invention uses an insulator for an audio device comprising the above-mentioned laminate, and applicable audio devices include a separate type or a pre-main type amplifier, a CD player, an LD player, and an MD player. , DVD players, VCRs, analog players, cassette decks, DATs, tuners, speakers and the like. Among them, audio devices suitable for the present invention are amplifiers, CD players, and tuners in which the generation and fluctuation of a magnetic field around a circuit or a cord easily affects sound quality. Further, the audio device of the present invention can improve sound quality and image quality by being used for an audiovisual device.

The method of reproducing an audio device according to the present invention is a method of reproducing an audio device, for example, after supporting an amplifier, a CD player, a tuner, etc., with an insulator for an audio device comprising the above-mentioned laminated body. .

[0029]

【Example】

Examples 1 to 30 and Comparative Examples 1 to 3 As an amplifier, Luxman SQ-3 was used.
8 Signature type integrated amplifier, Kenwood L-D1 as CD player, J as speaker
An audio system was configured using S-3100 manufactured by BL. The audio system insulator shown in Table 1 supported four points on the bottom of each of the integrated amplifier and the CD player of this audio system. Comparative Example 1 is a case where the insulator for the audio device is not used.

Using this audio system, Ischout Vankertes conducts the London Symphony Orchestra.
Sonny Roll from Dvorak's "New World" recorded in 6 years
ins "Saxophone Colossus" (tenor sax), Chnst
ian Mcbride "Gettin 'To it" (base), The Micha
el Wolff Trio "Something Blue" (piano), "Helen
Merrill with Clifford Brown "(vocals), Keith
Jarrett played "At the Blue Note" (piano, bass, drums). Four men auditioned and evaluated the change in sound quality. Compared to Comparative Example 1, the evaluation method was judged to be effective when the sound felt sharp, extended, and thick, glossy, and elastic over the high, middle, and low sound ranges. At that time, the evaluation was performed even if the volume was increased or decreased. As a result of the audition, if more than 4 out of 4 people judged effective, rank A, if more than 3 out of 4 people judged effective, rank B, if less than 2 rank C And if there is a person who has determined that there is no effect or that the sound quality has deteriorated,
Rank. The obtained results are shown in Tables 1 and 2.
In Tables 1 and 2, 15A represents the thickness (unit: mm) and the alphabet represents the material. A represents an aluminum-based metal plate, B represents a brass plate, G represents a glass plate, and P represents paper. 8G * 2 indicates that two 8 mm glass plates were bonded with an instant adhesive (Aron Alpha). Also, 15A + 5B + 25A has a lower layer of 15A,
The middle layer is 5B and the upper layer is 25A.

[0031]

[Table 1]

[0032]

[Table 2]

As shown in Tables 1 and 2, the insulator for an audio device of the present invention reproduces evenly from a low frequency range to a high frequency range, and has sharpness and elongation.
The listener was perceived as having a certain feeling of thickness, gloss, and back and forth, and it was found that even if the volume was increased, the sound was not clear and no noise, and a powerful sound was obtained even if the volume was lowered. In addition, in the column of the applicable device in Tables 1 and 2, the amplifier and the CD were used.
Combining each deck yielded better results. As a result, it has been found that, by using this insulator, for example, the sound quality of an amplifier of 2 million yen or more can be reproduced with an amplifier of 350 to 500,000 yen.

Example 31 One aluminum alloy plate having a length of 59.5 mm, a width of 59.5 mm and a thickness of 13.0 mm, having a right circular convex portion having a diameter of 19.4 mm and a height of 1.0 mm at the center, is prepared. In addition, diameter 19.5m in the center
59.5 mm long, 59.5 mm wide, with thickness of m through hole
Prepare two 5.0mm brass plates. These three metal plates were laminated in the order of a brass plate, an aluminum alloy plate, and a brass plate in such a manner that each side was the same, thereby obtaining an insulator for an audio device of the present invention. When the same evaluation as in Example 1 was performed using the obtained insulator, an A-rank evaluation was obtained.

[0035]

Since the insulator for an audio device of the present invention is formed by laminating at least two or more metal plates made of different materials, it is possible to reproduce evenly from a low range to a high range according to the type of the audio device. it can. In addition, by laminating the glass plate, the effect is further improved,
When the metal plate is an aluminum-based metal plate or a copper-based metal plate, it is particularly effective for amplifiers and CD players. In addition, thickness of metal plate and glass plate,
By changing the mutual setting, the desired sound quality can be obtained.

Since the audio device of the present invention uses the above-described insulator for an audio device, even a medium- to low-grade audio device can reproduce the same as a high-quality audio device.

According to the audio device reproducing method of the present invention, since the above-described audio device insulator is arranged in the audio device and then reproduced, the desired sound quality can be reproduced evenly from low to high frequencies by an easy method. be able to.

[Brief description of the drawings]

FIG. 1 is an example of an insulator in which each layer is fixed.

FIG. 2 is an example in which the insulator of the present invention is used for a pre-main amplifier.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Integrated amplifier 2 Power switch 3 Volume 4 Input selector 5 Support leg 6 Laminated body 6a Aluminum alloy plate 6a 6b Brass plate 6 6c Convex part

Claims (6)

[Claims] 1. An insulator for an audio device comprising a laminated body, wherein the laminated body is formed by laminating at least two or more types of metal plates made of different materials. 2. The audio device insulator according to claim 1, wherein said laminated body further comprises a glass plate laminated. 3. The insulator for an audio device according to claim 1, wherein the metal plate is an aluminum-based metal plate and a copper-based metal plate. 4. The laminated body is formed by laminating a brass plate above and below an aluminum alloy plate, and has convex portions on upper and lower surfaces of the aluminum alloy plate, and has a concave portion fitted to the convex portion. The insulator for an audio device according to claim 1, wherein the insulator is provided on a brass plate. 5. An audio device in which at least three or more points are supported by a support member, wherein the support member is the insulator for an audio device according to any one of claims 1 to 4. An audio device characterized by the above-mentioned. 6. A method for reproducing an audio device after supporting at least three or more points on a bottom surface of the audio device with a support member, wherein the method for supporting the audio device is performed. A method for reproducing an audio device, comprising using the insulator for an audio device according to any one of the above.