JPS6334392Y2 - - Google Patents
Info
- Publication number
- JPS6334392Y2 JPS6334392Y2 JP997683U JP997683U JPS6334392Y2 JP S6334392 Y2 JPS6334392 Y2 JP S6334392Y2 JP 997683 U JP997683 U JP 997683U JP 997683 U JP997683 U JP 997683U JP S6334392 Y2 JPS6334392 Y2 JP S6334392Y2
- Authority
- JP
- Japan
- Prior art keywords
- steel plate
- grill
- noise
- polymer material
- thin
- 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
- 229910000831 Steel Inorganic materials 0.000 claims description 10
- 239000010959 steel Substances 0.000 claims description 10
- 239000002184 metal Substances 0.000 claims description 6
- 239000002861 polymer material Substances 0.000 claims description 5
- 239000002131 composite material Substances 0.000 claims description 3
- 238000013016 damping Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 2
- 239000007769 metal material Substances 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
Landscapes
- Casings For Electric Apparatus (AREA)
- Details Of Audible-Bandwidth Transducers (AREA)
Description
【考案の詳細な説明】
本案はスピーカーキヤビネツトの如き音響機器
類のキヤビネツトの前面に、振動板の保護、及び
雑音の発生防止のために装着使用する、装飾をか
ねる金属グリルに関するものである。[Detailed description of the invention] This invention relates to a decorative metal grill that is installed on the front of the cabinet of audio equipment such as a speaker cabinet to protect the diaphragm and prevent the generation of noise. .
従来一般に使用されているスピーカーキヤビネ
ツト用金属グリルは、雑音の発生防止に関し種々
の対策が講ぜられているが、未だ十分その目的を
達したものはない。 Although various measures have been taken to prevent the generation of noise in metal grills for speaker cabinets that have been commonly used in the past, none have yet fully achieved their purpose.
本案はこれ等の点に関し、雑音発生防止の対策
として、根本的発生源である金属グリルの共鳴振
動を防止することのできるグリルを目的としてな
されたものである。 In view of these points, the present invention was developed with the aim of creating a grill that can prevent the resonance vibration of the metal grill, which is the fundamental source of noise generation, as a measure to prevent noise generation.
共鳴振動を防止するためには、雑音を発生する
材料自身の振動速度、振動振幅を減衰させて雑音
の放射を可及的少なくする材料でなければならな
い。共鳴振動の大小を示す振動損失系数について
各種金属材料を検討、試験の結果、本案は先づ複
合型制振鋼板１を二枚の薄鋼板１ａ，１ｂ間に極
めて薄い粘弾性高分子材料２を互い貼合密着一体
化して構成し、グリルはこの鋼板に無数の小孔を
パンチング加工して構成するのである。このよう
にして構成した金属グリルは、上記のように粘弾
性高分子材料を鋼板間に介入し、鋼板と密着一体
化したがため、グリル自体の共鳴振動作用は、粘
弾性高分子材の作用により著しく制限され、これ
がため本案グリルを装備すると、従来の金属グリ
ルに比較し雑音の発生が著しく減殺され、これに
よりスピーカーより放射される発生音には雑音の
ない清澄な声音が放射される効果がある。 In order to prevent resonance vibration, the material must attenuate the vibration velocity and vibration amplitude of the noise-generating material itself, thereby reducing noise radiation as much as possible. As a result of examining and testing various metal materials regarding vibration loss coefficients that indicate the magnitude of resonance vibration, this proposal first consists of a composite damping steel plate 1 with an extremely thin viscoelastic polymer material 2 between two thin steel plates 1a and 1b. The grilles are constructed by bonding them together and integrating them, and the grille is constructed by punching countless small holes into this steel plate. In the metal grill constructed in this way, the viscoelastic polymer material is interposed between the steel plates and is closely integrated with the steel plates as described above, so the resonance vibration effect of the grill itself is due to the effect of the viscoelastic polymer material. Therefore, when equipped with this grill, noise generation is significantly reduced compared to conventional metal grills, and the effect of this is that the sound emitted from the speaker is clear and free of noise. There is.
図面は本案の実施態様を示す例示図にして、第
１図は音響機器キヤビネツトの正面図、第２図は
Ａ−Ａ線に沿う断面図、第３図はグリルの断面拡
大図である。
１……複合型制振鋼板、１ａ，１ｂ……薄鋼
板、２……粘弾性高分子材料。
The drawings are illustrative views showing an embodiment of the present invention, and FIG. 1 is a front view of an audio equipment cabinet, FIG. 2 is a sectional view taken along line A--A, and FIG. 3 is an enlarged sectional view of the grill. 1...Composite damping steel plate, 1a, 1b...Thin steel plate, 2...Viscoelastic polymer material.
Claims (1)
で互に貼合密着一体化した複合型制振鋼板を構成
し、該鋼板に無数の小孔を穿設加工した音響機器
類キヤビネツトの前面装飾用金属グリル。 A composite vibration-damping steel plate is constructed by sandwiching a thin viscoelastic polymer material between two thin steel plates and bonding them together, and the steel plate is made with numerous small holes. Front decorative metal grill.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP997683U JPS59118385U (en) | 1983-01-28 | 1983-01-28 | Metal grille for front decoration of audio equipment cabinets |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP997683U JPS59118385U (en) | 1983-01-28 | 1983-01-28 | Metal grille for front decoration of audio equipment cabinets |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59118385U JPS59118385U (en) | 1984-08-09 |
| JPS6334392Y2 true JPS6334392Y2 (en) | 1988-09-12 |
Family
ID=30141423
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP997683U Granted JPS59118385U (en) | 1983-01-28 | 1983-01-28 | Metal grille for front decoration of audio equipment cabinets |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59118385U (en) |
-
1983
- 1983-01-28 JP JP997683U patent/JPS59118385U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS59118385U (en) | 1984-08-09 |
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