Title:
EMERGENCY CALL DEVICE WITHIN ELEVATOR CAR
Document Type and Number:
WIPO Patent Application WO/2016/122020
Kind Code:
A1
Abstract:
The present invention relates to an emergency call device within an elevator car. The emergency call device within the elevator car, according to the present invention, relates to an elevator emergency call device that is installed on the rear side of a sign plate of an operating control panel within the elevator car and includes a speaker, a microphone, and a PCB, the emergency call device comprising: a microphone sound box that has a plurality of holes formed therein and may adjust the volume of a sound input through the microphone by selectively adjusting the reflection and acoustic absorption for the sound input through the microphone hole of the sign plate by selectively opening and closing some of the plurality of holes; a microphone acoustic absorbent layer provided on the rear side of the microphone sound box to absorb a sound passing through the holes of the sound box; and an acoustic absorbent layer provided on the rear side of the speaker and filled with a porous acoustic absorbent for preventing the back reflection of a speaker sound.
More Like This:
| WO/2017/179169 | ELEVATOR DEVICE |
| JP2012218896 | ELEVATOR CONTROL SYSTEM |
Inventors:
SONG JONG-TAE (KR)
Application Number:
PCT/KR2015/000941
Publication Date:
August 04, 2016
Filing Date:
January 29, 2015
Export Citation:
Assignee:
SONG JONG-TAE (KR)
International Classes:
B66B5/00; B66B3/00
Foreign References:
| JPH06263349A | 1994-09-20 | |||
| JPH11136787A | 1999-05-21 | |||
| KR19990017756U | 1999-06-05 | |||
| JPH05160891A | 1993-06-25 | |||
| JP2006157587A | 2006-06-15 |
Attorney, Agent or Firm:
YANG, Jeongme (KR)
양정미 (KR)
양정미 (KR)
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