JPS5431933A - Device for silencing impulsive noises due to rapid entry into tunnel - Google Patents

Device for silencing impulsive noises due to rapid entry into tunnel

Info

Publication number
JPS5431933A
JPS5431933A JP9803577A JP9803577A JPS5431933A JP S5431933 A JPS5431933 A JP S5431933A JP 9803577 A JP9803577 A JP 9803577A JP 9803577 A JP9803577 A JP 9803577A JP S5431933 A JPS5431933 A JP S5431933A
Authority
JP
Japan
Prior art keywords
silencing
tunnel
noises due
rapid entry
impulsive noises
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
Application number
JP9803577A
Other languages
Japanese (ja)
Inventor
Kunio Date
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to JP9803577A priority Critical patent/JPS5431933A/en
Publication of JPS5431933A publication Critical patent/JPS5431933A/en
Pending legal-status Critical Current

Links

JP9803577A 1977-08-16 1977-08-16 Device for silencing impulsive noises due to rapid entry into tunnel Pending JPS5431933A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9803577A JPS5431933A (en) 1977-08-16 1977-08-16 Device for silencing impulsive noises due to rapid entry into tunnel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9803577A JPS5431933A (en) 1977-08-16 1977-08-16 Device for silencing impulsive noises due to rapid entry into tunnel

Publications (1)

Publication Number Publication Date
JPS5431933A true JPS5431933A (en) 1979-03-09

Family

ID=14208780

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9803577A Pending JPS5431933A (en) 1977-08-16 1977-08-16 Device for silencing impulsive noises due to rapid entry into tunnel

Country Status (1)

Country Link
JP (1) JPS5431933A (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51116033A (en) * 1975-04-05 1976-10-13 Tooru Ishima Preventive method of impulse sound of tunnel for rapid transit train

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51116033A (en) * 1975-04-05 1976-10-13 Tooru Ishima Preventive method of impulse sound of tunnel for rapid transit train

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