JPH05143080A - Acoustic video equipment storage rack - Google Patents

Abstract

PURPOSE:To excellently reproduce original sound quality and images. CONSTITUTION:A frame body 1 is formed of a cast iron material and a top plate 2 and a bottom plate 3 are formed of vibrationproof materials. Pointed support members 4 are stood on corner members 1c provided at the four corner parts of a rectangular frame part 1a to support the top plate 2 and bottom plate 3 formed of the vibrationproof materials. A pointed leg 5 is provided on the bottom part of a support 1b. The top plate 2 and bottom plate 3 absorb and greatly attenuates vibrations generated by acoustic video equipment. The pointed leg 5 nearly cuts off vibrations propagated from a floor to the frame body 1. The frame body 1 absorbs and attenuates vibrations propagated through the pointed support member 4 and/or frame body 1. The pointed support member 4 prevents the top plate 2, leg plate 3, and bottom plate 3 from having play and the pointed leg 5 prevents the frame body 1 from having play.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rack for housing audio equipment or video equipment.

[0002]

2. Description of the Related Art As an audio / visual equipment storage rack, there is one as shown in Japanese Utility Model Laid-Open No. 1-95893, in which all or a part of a top plate, a shelf plate, a bottom plate, and a side plate are
The vibration loss coefficient at 0 to 30 ° C is 0.02 or more, and is formed from a resin plate made of epoxy resin, polyamide resin, and inorganic filler. Usually, a caster for moving is provided on the bottom plate of the audio / video equipment storage rack. Are provided (for example, Japanese Utility Model Laid-Open No. 3-27783).

[0003]

Vibration is generated from a motor or a speaker built in an audio / video device, but in the conventional audio / video device storage rack, the vibration is not sufficiently absorbed and damped. However, all or a part of the top plate, the shelf plate, the bottom plate, and the side plates of the storage rack may cause a resonance action with the vibration, and there is a problem that the original sound quality and images cannot be sufficiently reproduced.

Further, the conventional storage rack does not sufficiently block the vibration transmitted from the floor to the storage rack, which causes a problem that the reproduced sound quality and images are adversely affected.

Therefore, the present invention has been made in order to solve the above problems, and absorbs and damps the vibration generated from the audio / visual equipment, and cuts off the vibration transmitted from the floor. Sound that can reproduce sound quality and images well
A video equipment storage rack is provided.

[0006]

In the audio / visual equipment storage rack of the present invention, the frame body is formed of cast iron material, and the top plate, the shelf plate and the bottom plate are formed of damping material, and the rectangular shape of the frame body is formed. The top plate, the shelf plate, and a pointed support member that supports the bottom plate are provided at the four corners of the frame portion, and pointed legs are provided at the bottom portion of the column of the frame body. The damping material is made of gray cast iron, and the vibration damping material contains metal powder of 25 to 3 with respect to 100 parts by weight of an organic binder between a pair of hard boards.
It is formed by coating any one of melamine, acryl, and vinyl chloride on the surface of a hardboard molded body obtained by pressure molding with an adhesive layer added by 00 parts by weight interposed.

(1) Cast Iron Material As the cast iron material, gray cast iron formed by sand mold casting and continuous casting is used. (2) Hard board As a hard board, Japanese Industrial Standard "Hard fiber board" A
What complies with 5907 is used. (3) Organic Binder As the organic binder, one or more of epoxy resin, polyurethane resin, unsaturated polyester resin, polyacrylic ester resin, amino resin, urea resin and phenol resin are used. (4) Metal powder As the metal powder, one or more metal powders of aluminum, copper, brass, zinc, titanium, stainless steel, nickel, steel, cast iron and alloys thereof are used, and preferably 300 mesh or less. Of organic binder 10
25 to 300 parts by weight is added to 0 parts by weight, and if it is less than 25 parts by weight, the vibration damping effect against acoustic vibration is reduced.
When it exceeds the weight part, the bulk specific gravity of the hardboard molded body increases and the flexibility is lost. (5) Coating layer Any one of melamine, acrylic, and vinyl chloride is used as the coating layer, and the coating layer improves the sound quality and improves the appearance, and particularly, iron powder which is easily oxidizable is used. In this case, it is possible to prevent oxidation and prevent appearance defects with time.

[0008]

[Operation] The vibration generated from the audio / visual equipment is transmitted to the upper plate, the shelf plate and the bottom plate, and is absorbed by the damping material forming each plate, and the vibration energy is converted into heat energy and dissipated. .. Also, the vibration transmitted from the floor to the frame is
The transmission to the frame is substantially blocked by the pointed legs provided on the bottom of the frame column, and the vibration transmitted to the frame is
It is absorbed by the cast iron material and the vibration energy changes to heat energy and dissipates.

[0009]

1 to 3 show an audio / visual equipment storage rack according to the present invention, which is composed of a frame 1 having a rectangular parallelepiped frame, a top plate 2 and a bottom plate 3, and the frame 1 is a rectangular frame portion 1a. And prop 1b
And rectangular parallelepiped corner members 1c are provided at the four corners of the rectangular frame portion 1a with which the rectangular frame portion 1a and the support columns 1b engage. A pointed member 4 for supporting the top plate 2 and the bottom plate 3 is erected on the corner member 1c, and a pointed leg 5 is provided on the bottom of the column 1b.

The frame body 1 is made of gray cast iron, the rectangular frame portion 1a, the column 1c and the pointed leg 5 are made of a continuous casting rod, and the corner member 1c is made of a sand casting. The pointed support member 4 is made of carbon steel, and 6 is a stopper for locking the top plate and the bottom plate 3.

The top plate 2 and the bottom plate 3 are made of a damping material, and the damping material is provided between a pair of hard boards (T350).
Cast iron powder (300
A hardboard molded body (thickness 1) obtained by pressure molding with an adhesive layer added with 200 parts by weight of mesh.
It is a vibration damping plate (thickness: 12 mm) formed by sticking a melamine sheet having a thickness of 0.5 mm on the surface of 1 m).

Audio / visual equipment is appropriately placed on the top plate 2 and the bottom plate 3, and vibrations generated from the equipment are transmitted to the top plate 2 and the bottom plate 3, respectively, and the two plates 2, 3 Is absorbed by the vibration damping material that forms the heat energy, and the vibration energy is converted into heat energy and dissipated by friction between the phenol resin and the cast iron powder.

Further, the vibration transmitted from the floor to the frame body 1 is substantially blocked by the pointed leg 6 provided at the bottom of the frame body 1, and the pointed support member is provided. The vibration transmitted to the frame 1 via the 4 and / or the pointed leg 5 is absorbed by the cast iron material, and the vibration energy is converted into heat energy and dissipated. Further, since the top plate 2, the shelf plate 3 and the bottom plate 4 are supported by the pointed support member 5 and the frame 1 is erected on the floor by the pointed legs 6, no abnormal noise is generated. ..

Although the above embodiment uses the top plate 2 and the bottom plate 3, a shelf plate (not shown) may be further added.
The rack of the above-mentioned embodiment can also be used by laying a small disk 7 having a conical hole under the pointed leg 5.

[0015]

According to the present invention, the top plate, the shelf plate, and the bottom plate made of the damping material absorb the vibration generated from the audio / visual equipment and significantly reduce the vibration, and the pointed leg moves from the floor to the frame. The transmitted vibration is substantially blocked, and the frame made of cast iron absorbs and attenuates the transmitted vibration via the pointed support member and / or the pointed leg, and the pointed support member Since the top plate, shelf plate and bottom plate are prevented from rattling and the pointed legs prevent rattling of the frame body, a rack with a simple structure without any electrical improvement of the audio / visual equipment system, etc. The original sound quality and images can be reproduced well, and the product value can be improved by applying various designs.

[Brief description of drawings]

FIG. 1 is a perspective view of an essential part of an audio / visual equipment storage rack according to the present invention.

FIG. 2 is a front view with the top plate and bottom plate removed.

FIG. 3 is a plan view with the top plate and bottom plate removed.

[Explanation of symbols]

 1 Frame 1a Rectangular frame 1b Strut 1c Corner member 2 Top plate 3 Bottom plate 4 Pointed support member 5 Pointed leg 6 Stopper 7 Small disk

 ─────────────────────────────────────────────────── ─── Continuation of front page (72) Inventor Katsumi Mizuno Aisin Takaoka Co., Ltd. No. 1 Tenno, Shinmachi, Takaoka, Toyota-shi, Aichi

Claims (3)

[Claims] 1. An audio / visual equipment storage rack in which a top plate, a shelf plate, and a bottom plate are provided on a rectangular parallelepiped frame body, the frame body is formed of a cast iron material, and the top plate, the shelf plate, and the bottom plate are formed. Is formed from a damping material, and pointed support members for supporting the top plate, the shelf plate and the bottom plate are provided at the four corners of the rectangular frame portion of the frame body, and at the bottom of the column of the frame body. Audio / visual equipment storage rack that is equipped with pointed legs. 2. The cast iron material is formed of gray cast iron, and the damping material is an organic binder 1 between a pair of hard boards.
On the surface of a hardboard molded body obtained by press-molding with an adhesive layer containing 25 to 300 parts by weight of metal powder added to 100 parts by weight, one of melamine, acrylic, and vinyl chloride is added. The audio / visual equipment storage rack according to claim 1, which is formed by coating. 3. The audio / visual equipment storage rack according to claim 1, wherein a small disk having a conical hole is laid under the pointed leg.