JPH02126941U - - Google Patents
Info
- Publication number
- JPH02126941U JPH02126941U JP3679389U JP3679389U JPH02126941U JP H02126941 U JPH02126941 U JP H02126941U JP 3679389 U JP3679389 U JP 3679389U JP 3679389 U JP3679389 U JP 3679389U JP H02126941 U JPH02126941 U JP H02126941U
- Authority
- JP
- Japan
- Prior art keywords
- upper frame
- cavity
- opening
- automobiles
- drilling
- 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.)
- Pending
Links
- 238000005553 drilling Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Seats For Vehicles (AREA)
- Soundproofing, Sound Blocking, And Sound Damping (AREA)
Description
図面は本考案の１実施例を示し、第１図は自動
車用シートの斜視図、第２図は上部フレームの斜
視図、第３図は上部フレームの縦断面図、第４図
は周波数と騒音レベルとの関係を示す線図である
。
シートバツク……２、上部フレーム……４、空
洞……６、開口……７。
The drawings show one embodiment of the present invention, in which Fig. 1 is a perspective view of an automobile seat, Fig. 2 is a perspective view of the upper frame, Fig. 3 is a vertical cross-sectional view of the upper frame, and Fig. 4 shows frequency and noise. It is a diagram showing the relationship with the level. Seat back...2, Upper frame...4, Hollow...6, Opening...7.
Claims (1)
内に空洞を形成するとともにこの空洞に連通する
１つの開口を上記上部フレームに穿設することに
よつて上記上部フレーム内にヘルムホルツ型共鳴
室を構成したことを特徴とする自動車における騒
音低減装置。 A Helmholtz type resonance chamber is configured in the upper frame by forming a cavity in the upper frame of the seat back of the automobile seat and drilling an opening in the upper frame that communicates with the cavity. Noise reduction device for automobiles.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3679389U JPH02126941U (en) | 1989-03-30 | 1989-03-30 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3679389U JPH02126941U (en) | 1989-03-30 | 1989-03-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02126941U true JPH02126941U (en) | 1990-10-19 |
Family
ID=31543337
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3679389U Pending JPH02126941U (en) | 1989-03-30 | 1989-03-30 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02126941U (en) |
-
1989
- 1989-03-30 JP JP3679389U patent/JPH02126941U/ja active Pending
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