JPH0111947Y2 - - Google Patents
Info
- Publication number
- JPH0111947Y2 JPH0111947Y2 JP1982002348U JP234882U JPH0111947Y2 JP H0111947 Y2 JPH0111947 Y2 JP H0111947Y2 JP 1982002348 U JP1982002348 U JP 1982002348U JP 234882 U JP234882 U JP 234882U JP H0111947 Y2 JPH0111947 Y2 JP H0111947Y2
- Authority
- JP
- Japan
- Prior art keywords
- crankcase
- protrusion
- seal member
- flat plate
- elastic
- 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
- 238000009413 insulation Methods 0.000 claims description 4
- 230000002093 peripheral effect Effects 0.000 claims 1
- 238000007789 sealing Methods 0.000 description 6
- 239000011358 absorbing material Substances 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 238000002788 crimping Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
Landscapes
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
Description
【考案の詳細な説明】 本考案は遮音装置の改良に関するものである。[Detailed explanation of the idea] The present invention relates to an improvement of a sound insulation device.
以下、本考案の一実施例を第１図及び第２図に
基づいて説明する。１はクランクケース２の側壁
外面３に略コ字形状を成すように一体に設けられ
た突出部である。４はクランクケース２の下端部
に設けられたオイルパン取付け用のフランジであ
る。５は突出部１及びフランジ４の協働により形
成される凹所である。６は凹所５を形成する突出
部１及びフランジ４の内面に圧着あるいは接着等
により設けられたリング状の弾性シール部材であ
り、スポンジゴムあるいは板ゴム等の弾性体から
形成されている。７は弾性シール部材６をせん断
変形させるように弾性シール部材６に支持される
と共にクランクケース２に図示しない弾性体を介
してボルト８で弾性支持された遮音板である。 An embodiment of the present invention will be described below with reference to FIGS. 1 and 2. Reference numeral 1 denotes a protrusion that is integrally provided on the outer surface 3 of the side wall of the crankcase 2 so as to form a substantially U-shape. 4 is a flange provided at the lower end of the crankcase 2 for mounting an oil pan. 5 is a recess formed by the cooperation of the protrusion 1 and the flange 4. Reference numeral 6 denotes a ring-shaped elastic sealing member provided by pressure bonding or adhesion on the inner surface of the protrusion 1 and flange 4 forming the recess 5, and is made of an elastic material such as sponge rubber or plate rubber. A sound insulating plate 7 is supported by the elastic seal member 6 so as to shear and deform the elastic seal member 6, and is elastically supported by bolts 8 on the crankcase 2 via an elastic body (not shown).
従つて、上記実施例によればクランクケース２
と遮音板７との間に介装した弾性シール部材６を
せん断変形させるように設けたために、弾性シー
ル部材６のバネ定数を圧縮変形させるものよりも
低減することができるので、遮音板７は振動絶縁
が向上するという効果を奏する。 Therefore, according to the above embodiment, the crankcase 2
Since the elastic sealing member 6 interposed between the sound insulating plate 7 and the sound insulating plate 7 is provided so as to be deformed in shear, the spring constant of the elastic sealing member 6 can be lower than that in the case where the elastic sealing member 6 is compressively deformed. This has the effect of improving vibration isolation.
また、上記実施例では、クランクケース２に一
体に突出部１を設けたために、クランクケース２
の剛性が向上すると共に弾性シール部材６と協働
してもれ音のシールに役立つという効果を奏す
る。 Furthermore, in the above embodiment, since the protrusion 1 is integrally provided in the crankcase 2, the crankcase 2
This has the effect that the rigidity of the elastic seal member 6 is improved and that it cooperates with the elastic seal member 6 to help seal out leakage noise.
次に、本考案の第二実施例を第３図に基づいて
説明する。第二実施例では第一実施例の凹所５に
吸音材９を設けると共に弾性シール部材６を突出
部１及びフランジ４に圧着あるいは接着等により
取付けてもよく又は吸音材９とクランクケース２
にボルト８で取付けられる遮音板７とで取付けて
もよいものである。 Next, a second embodiment of the present invention will be described based on FIG. In the second embodiment, the sound absorbing material 9 may be provided in the recess 5 of the first embodiment, and the elastic sealing member 6 may be attached to the protrusion 1 and the flange 4 by crimping or gluing, or the sound absorbing material 9 and the crankcase 2 may be attached.
The sound insulating plate 7 may be attached to the sound insulating plate 7 with bolts 8.
従つて上記第二実施例でも上記第一実施例と同
様の効果を奏すると共に吸音材９により吸音効果
が向上するものである。 Therefore, the second embodiment also provides the same effects as the first embodiment, and the sound absorbing material 9 improves the sound absorption effect.
第１図は本考案の第一実施例を示す遮音装置の
正面図、第２図は第１図の−線に沿う断面
図、第３図は本考案の第二実施例を示す第２図と
同様の断面図である。
１……突出部、２……クランクケース、４……
フランジ、５……凹所、６……弾性シール部材、
７……遮音板、９……吸音材。
Fig. 1 is a front view of a sound insulation device showing a first embodiment of the present invention, Fig. 2 is a sectional view taken along the - line in Fig. 1, and Fig. 3 is a second diagram showing a second embodiment of the invention. FIG. 1...Protrusion, 2...Crankcase, 4...
flange, 5... recess, 6... elastic sealing member,
7...Sound insulating board, 9...Sound absorbing material.
Claims (1)
すように上記クランクケースと一体に形成された
突出部、上記クランクケース下端部にクランクケ
ースと一体に形成されたオイルパン取付け用フラ
ンジ、同フランジ及び上記突出部の協働により形
成される凹所、同凹所を形成する上記フランジ及
び突出部の内面に上記クランクケース側壁外面と
間隔を有して設けられると共に断面多角形状のリ
ング形状を有する弾性シール部材、同弾性シール
部材をせん断変形させるように同弾性シール部材
に支持されると共に上記クランクケースに取付け
られ、かつ中央部を平板部で形成し周縁部を上記
平板部に連続する段差部で形成した一枚の平板か
ら成る遮音板を具備したことを特徴とする遮音装
置。 A protrusion formed integrally with the crankcase to form a substantially U-shaped wall on the outer surface of the side wall of the crankcase; an oil pan mounting flange integrally formed with the crankcase at the lower end of the crankcase; A recess formed by the cooperation of the protrusion, the flange forming the recess, and an elastic member provided on the inner surface of the protrusion at a distance from the outer surface of the crankcase side wall and having a ring shape with a polygonal cross section. a seal member, which is supported by the elastic seal member so as to shear deform the elastic seal member and is attached to the crankcase, and has a central portion formed by a flat plate portion and a peripheral portion formed by a stepped portion continuous to the flat plate portion; A sound insulation device comprising a sound insulation board made of a single flat plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP234882U JPS58104324U (en) | 1982-01-12 | 1982-01-12 | sound insulation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP234882U JPS58104324U (en) | 1982-01-12 | 1982-01-12 | sound insulation device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58104324U JPS58104324U (en) | 1983-07-15 |
| JPH0111947Y2 true JPH0111947Y2 (en) | 1989-04-07 |
Family
ID=30015336
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP234882U Granted JPS58104324U (en) | 1982-01-12 | 1982-01-12 | sound insulation device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58104324U (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101936436B1 (en) * | 2012-11-20 | 2019-01-08 | 현대자동차주식회사 | Device for tunning engine sound |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS578319A (en) * | 1980-06-16 | 1982-01-16 | Yamaha Motor Co Ltd | Case with sound insulation structure |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56107925U (en) * | 1980-01-22 | 1981-08-21 | ||
| JPS6014897Y2 (en) * | 1980-05-27 | 1985-05-11 | 日産自動車株式会社 | Proximity sound insulation structure of Rotsuka cover |
-
1982
- 1982-01-12 JP JP234882U patent/JPS58104324U/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS578319A (en) * | 1980-06-16 | 1982-01-16 | Yamaha Motor Co Ltd | Case with sound insulation structure |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS58104324U (en) | 1983-07-15 |
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