JPH0359223U - - Google Patents
Info
- Publication number
- JPH0359223U JPH0359223U JP12102289U JP12102289U JPH0359223U JP H0359223 U JPH0359223 U JP H0359223U JP 12102289 U JP12102289 U JP 12102289U JP 12102289 U JP12102289 U JP 12102289U JP H0359223 U JPH0359223 U JP H0359223U
- Authority
- JP
- Japan
- Prior art keywords
- round hole
- resonator
- sound
- noise
- frequency
- 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
- 238000010276 construction Methods 0.000 claims description 2
- 238000010521 absorption reaction Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
Description
第１図は実施例に係る建設機械等の吸音レゾネ
ータを備えた油圧掘削機のレボフレームの概略斜
視図、第２図は第１図における吸音レゾネータの
部分斜視図、第３図は吸音レゾネータの断面図で
ある。
１，２，３，４……箱形部材、５……首部、６
……貫通穴。
Fig. 1 is a schematic perspective view of a revo frame of a hydraulic excavator equipped with a sound absorption resonator for construction machinery, etc. according to an embodiment, Fig. 2 is a partial perspective view of the sound absorption resonator in Fig. 1, and Fig. 3 is a diagram of the sound absorption resonator. FIG. 1, 2, 3, 4... Box-shaped member, 5... Neck, 6
...Through hole.
Claims (1)
音を入射させる丸穴を設け、この丸穴の周囲に内
径が丸穴の直径に等しい管状の首部を固着して吸
音レゾネータを形成し、この吸音レゾネータの共
鳴周波数を騒音の周波数に一致させたことを特徴
とする建設機械等の吸音レゾネータ。 A round hole through which noise enters is provided in one side of the closed-section box-shaped member constituting the frame, and a tubular neck whose inner diameter is equal to the diameter of the round hole is fixed around the round hole to form a sound-absorbing resonator. A sound absorbing resonator for construction machinery, etc., characterized in that the resonance frequency of the resonator matches the frequency of noise.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12102289U JPH0359223U (en) | 1989-10-17 | 1989-10-17 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12102289U JPH0359223U (en) | 1989-10-17 | 1989-10-17 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0359223U true JPH0359223U (en) | 1991-06-11 |
Family
ID=31669065
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12102289U Pending JPH0359223U (en) | 1989-10-17 | 1989-10-17 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0359223U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7364710B2 (en) | 2002-03-28 | 2008-04-29 | Koken Ltd. | System for decomposing organic compound |
| EP2096213A2 (en) * | 2008-02-27 | 2009-09-02 | Volvo Construction Equipment Holding Sweden AB | Upper frame for construction equipment |
| WO2010038585A1 (en) * | 2008-09-30 | 2010-04-08 | 株式会社神戸製鋼所 | Construction machine with device for acoustically insulating cabin |
-
1989
- 1989-10-17 JP JP12102289U patent/JPH0359223U/ja active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7364710B2 (en) | 2002-03-28 | 2008-04-29 | Koken Ltd. | System for decomposing organic compound |
| EP2096213A2 (en) * | 2008-02-27 | 2009-09-02 | Volvo Construction Equipment Holding Sweden AB | Upper frame for construction equipment |
| EP2096213A3 (en) * | 2008-02-27 | 2013-06-05 | Volvo Construction Equipment Holding Sweden AB | Upper frame for construction equipment |
| WO2010038585A1 (en) * | 2008-09-30 | 2010-04-08 | 株式会社神戸製鋼所 | Construction machine with device for acoustically insulating cabin |
| CN102171396A (en) * | 2008-09-30 | 2011-08-31 | 株式会社神户制钢所 | Construction machine with device for acoustically insulating cabin |