JPS54107301A - Silencing device of motor for elevator - Google Patents

Silencing device of motor for elevator

Info

Publication number
JPS54107301A
JPS54107301A JP1400578A JP1400578A JPS54107301A JP S54107301 A JPS54107301 A JP S54107301A JP 1400578 A JP1400578 A JP 1400578A JP 1400578 A JP1400578 A JP 1400578A JP S54107301 A JPS54107301 A JP S54107301A
Authority
JP
Japan
Prior art keywords
motor
noise
speaker
elevator
sounds
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
JP1400578A
Other languages
Japanese (ja)
Inventor
Hidenori Watanabe
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP1400578A priority Critical patent/JPS54107301A/en
Publication of JPS54107301A publication Critical patent/JPS54107301A/en
Pending legal-status Critical Current

Links

Landscapes

  • Elevator Control (AREA)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)
  • Control Of Direct Current Motors (AREA)

Abstract

PURPOSE: To achieve the reduction of noise by producing the sounds of the same frequencies as those of the noise generated from a motor from a speaker provided toward the motor.
CONSTITUTION: Silencing signal is outputted at the same frequencies as those of the noise generated by an armature 1 and with a deviation of phase by a time T from a speaker 14. Hence, by adjusting the position of the speaker 14 and the time T, the negating action owing to synthethis of the sounds of opposite phases is accomplished and the noise may be reduced.
COPYRIGHT: (C)1979,JPO&Japio
JP1400578A 1978-02-09 1978-02-09 Silencing device of motor for elevator Pending JPS54107301A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1400578A JPS54107301A (en) 1978-02-09 1978-02-09 Silencing device of motor for elevator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1400578A JPS54107301A (en) 1978-02-09 1978-02-09 Silencing device of motor for elevator

Publications (1)

Publication Number Publication Date
JPS54107301A true JPS54107301A (en) 1979-08-23

Family

ID=11849090

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1400578A Pending JPS54107301A (en) 1978-02-09 1978-02-09 Silencing device of motor for elevator

Country Status (1)

Country Link
JP (1) JPS54107301A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS599699A (en) * 1982-07-07 1984-01-19 日産自動車株式会社 Control of sound field in chamber of automobile

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS599699A (en) * 1982-07-07 1984-01-19 日産自動車株式会社 Control of sound field in chamber of automobile
JPH04273B2 (en) * 1982-07-07 1992-01-06 Nissan Motor

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