Invention Grant
- Patent Title: Elevator door stopping device
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Application No.: US14761163Application Date: 2013-09-12
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Publication No.: US09783392B2Publication Date: 2017-10-10
- Inventor: Jung Sam Kim , Jinkoo Lee , Hansoo Shim , JinKyu Ryu
- Applicant: Otis Elevator Company
- Applicant Address: US CT Farmington
- Assignee: OTIS ELEVATOR COMPANY
- Current Assignee: OTIS ELEVATOR COMPANY
- Current Assignee Address: US CT Farmington
- Agency: Cantor Colburn LLP
- Priority: KR10-2013-0021320 20130227
- International Application: PCT/US2013/059421 WO 20130912
- International Announcement: WO2014/133587 WO 20140904
- Main IPC: B66B13/16
- IPC: B66B13/16 ; B66B13/08

Abstract:
An elevator door stopping device which can prevent that elevator door is closed by itself when power supplied to a motor for opening and closing the elevator door is interrupted, an improvement of the elevator door stopping device characterized in that a first magnetic body is fixed on a shaft rotating in interlock with opening and closing of the elevator door so as to generate a magnetic force in a radial direction perpendicular to the shaft, and a second magnetic body is fixed on a fixed face spaced apart from the first magnetic body at a predetermined interval in the radial direction in such a manner that the second magnetic body has the opposite pole to the first magnetic body, so that a magnetic force is generated between the first magnetic body and the second magnetic body in the radial direction perpendicular to the shaft.
Public/Granted literature
- US20160009529A1 Elevator Door Stopping Device Public/Granted day:2016-01-14
Information query
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