JPS6133503B2 - - Google Patents
Info
- Publication number
- JPS6133503B2 JPS6133503B2 JP9791280A JP9791280A JPS6133503B2 JP S6133503 B2 JPS6133503 B2 JP S6133503B2 JP 9791280 A JP9791280 A JP 9791280A JP 9791280 A JP9791280 A JP 9791280A JP S6133503 B2 JPS6133503 B2 JP S6133503B2
- Authority
- JP
- Japan
- Prior art keywords
- speaker cabinet
- speaker
- composite material
- balsa
- cabinet
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 239000000463 material Substances 0.000 claims description 11
- 240000007182 Ochroma pyramidale Species 0.000 claims description 10
- 239000002131 composite material Substances 0.000 claims description 9
- 239000000835 fiber Substances 0.000 claims description 4
- 239000004033 plastic Substances 0.000 claims description 2
- 229920003023 plastic Polymers 0.000 claims description 2
- 229920002430 Fibre-reinforced plastic Polymers 0.000 claims 1
- 239000011151 fibre-reinforced plastic Substances 0.000 claims 1
- 239000011093 chipboard Substances 0.000 description 5
- 239000002023 wood Substances 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- 238000004512 die casting Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R1/00—Details of transducers, loudspeakers or microphones
- H04R1/02—Casings; Cabinets ; Supports therefor; Mountings therein
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Details Of Audible-Bandwidth Transducers (AREA)
Description
本発明は軽量で高剛性のスピ−カキヤビネツト
を実現することを目的とするものである。
従来スピ−カキヤビネツトは天然木材かチツプ
ボードを用いるか、あるいはアルミダイキヤスト
を用いるものが多い。ところが、天然木材やアル
ミダイキヤストは、高価である上に重量が大きい
ため、移動用のスピ−カキヤビネツト等には不向
きである。またチツプボードを用いたものは、比
較的安価で軽量であるが、比重が０、８程度であ
るため剛性が十分でなく、スピ−カキヤビネツト
としての十分な剛性を得ようとすれば、板厚を大
きくしなければならないから、キヤビネツト全体
が大型化し、結局重量も相当大きなものになると
いう問題がある。
本発明はこのような従来の問題を解決するスピ
−カキヤビネツトを提供するものである。
第１図はスピ−カキヤビネツトとその前面に取
付けられたスピーカユニツト２の外観を示してい
る。そして上記スピ−カキヤビネツト１は、第２
図、第３図に示すようにプラスチツクまたは繊維
強化プラスチツク（FRP）で構成された２枚の
表面材３，３の間に、バルサ材４を、その繊維方
向（第２回矢印５方向）が上記表面材３，３と直
交するように挾んだ複合材料６で構成されてい
る。
このように構成すれば、バルサ材４の繊維方向
５が表面材３と直交するため、複合材料６はきわ
めて高い剛性を有する。しかも表面材３もバルサ
材４も、共にダイキヤストや天然木材に比べて十
分に軽いから、スピ−カキヤビネツト全体を著し
く軽量にすることができる。
第１表は従来のチツプボードを用いたものと、
バルサ材とFRPの複合材料を用いたものとの特
性を比較したものである。
The object of the present invention is to realize a lightweight and highly rigid speaker cabinet. Conventional speaker cabinets often use natural wood, chipboard, or die-cast aluminum. However, natural wood and aluminum die-casting are expensive and heavy, making them unsuitable for portable speaker cabinets and the like. Also, those using chipboard are relatively cheap and lightweight, but their specific gravity is around 0.8, so they are not sufficiently rigid, and in order to obtain sufficient rigidity for a speaker cabinet, the thickness of the board must be increased. Since it has to be made larger, there is a problem in that the entire cabinet becomes larger and weighs considerably more. The present invention provides a speaker cabinet that solves these conventional problems. FIG. 1 shows the external appearance of a speaker cabinet and a speaker unit 2 attached to the front thereof. The speaker cabinet 1 is connected to the second speaker cabinet 1.
As shown in FIG. It is composed of a composite material 6 sandwiched between the surface materials 3 and 3 at right angles. With this configuration, the fiber direction 5 of the balsa wood 4 is perpendicular to the surface material 3, so the composite material 6 has extremely high rigidity. Moreover, since both the surface material 3 and the balsa material 4 are sufficiently lighter than die cast or natural wood, the overall weight of the speaker cabinet can be significantly reduced. Table 1 shows those using conventional chipboard,
This is a comparison of the characteristics of materials using balsa wood and FRP composite materials.
【表】
第１表に示すように、バルサ材とFRPの複合
材料は、チツプボードとほぼ同じ剛性をもつてい
るが、かさ密度は２分の１になつている。したが
つてこのような複合材料を用いれば、チツプボー
ドに比べて高剛性で軽量なスピ−カキヤビネツト
を構成することができる。
なお、バルサ材として、バルサを厚さ１cm、縦
横それぞれ５cm程度に切断し、これを一枚の布の
一方の面に敷きつめて貼りつけたもの（新田ベニ
ヤ株式会社から「カンタコア」の商品名で市販さ
れている）を使用すれば、作業性の点でも優れた
ものになる。また複合材料６はキヤビネツトの一
部に用いてもよい。
以上のように本発明は、プラスチツク又は
FRPの表面材の間に、バルサ材をその繊維方向
が表面材と直交するように挾み込んだ複合材料を
用いてスピ−カキヤビネツトを構成するようにし
たものであるから、軽量で高剛性のスピ−カキヤ
ビネツトを実現することができる。[Table] As shown in Table 1, the composite material of balsa wood and FRP has almost the same rigidity as chipboard, but the bulk density is half that. Therefore, by using such a composite material, it is possible to construct a speaker cabinet that is more rigid and lighter than chipboard. The balsa material is made by cutting balsa into pieces of 1 cm thick and 5 cm each in length and width, and then laying them on one side of a piece of cloth and pasting them (product name ``Cantacore'' from Nitta Veneer Co., Ltd.). (commercially available) provides excellent workability. The composite material 6 may also be used as part of a cabinet. As described above, the present invention can be applied to plastic or
The speaker cabinet is constructed using a composite material in which balsa wood is sandwiched between FRP surface materials so that the fiber direction is perpendicular to the surface material, making it lightweight and highly rigid. A speaker cabinet can be realized.
第１図は本発明の一実施例の外観斜視図、第２
図、第３図はその要部を示す断面図および一部破
断斜視図である。
１……スピ−カキヤビネツト、２……スピーカ
ユニツト、３……表面材、４……バルサ材、５…
…バルサ材の繊維方向、６……複合材料。
Fig. 1 is an external perspective view of one embodiment of the present invention;
3 are a sectional view and a partially cutaway perspective view showing the main parts thereof. 1...Speaker cabinet, 2...Speaker unit, 3...Surface material, 4...Balsa wood, 5...
...Fiber direction of balsa wood, 6...Composite material.
Claims (1)
構成された２枚の表面材の間に、バルサ材をその
繊維方向が上記表面材と直交するように挾んだ複
合材料を壁面の一部又は全部に用いたことを特徴
とするスピ−カキヤビネツト。1 A composite material in which balsa wood is sandwiched between two surface materials made of plastic or fiber-reinforced plastic so that the fiber direction is perpendicular to the surface material is used for part or all of the wall surface. A speaker cabinet characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9791280A JPS5723386A (en) | 1980-07-16 | 1980-07-16 | Loudspeaker cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9791280A JPS5723386A (en) | 1980-07-16 | 1980-07-16 | Loudspeaker cabinet |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5723386A JPS5723386A (en) | 1982-02-06 |
| JPS6133503B2 true JPS6133503B2 (en) | 1986-08-02 |
Family
ID=14204919
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9791280A Granted JPS5723386A (en) | 1980-07-16 | 1980-07-16 | Loudspeaker cabinet |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5723386A (en) |
-
1980
- 1980-07-16 JP JP9791280A patent/JPS5723386A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5723386A (en) | 1982-02-06 |
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