Invention Grant
- Patent Title: Method and device for determining a deterioration state in a suspension member for an elevator
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Application No.: US15748277Application Date: 2016-07-28
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Publication No.: US11014784B2Publication Date: 2021-05-25
- Inventor: Philippe Henneau
- Applicant: Inventio AG
- Applicant Address: CH Hergiswil
- Assignee: Inventio AG
- Current Assignee: Inventio AG
- Current Assignee Address: CH Hergiswil
- Agency: Shumaker, Loop & Kendrick, LLP
- Agent William J. Clemens
- Priority: EP16155357 20160211,EP16155358 20160211,EP16165431 20160414,EP16167403 20160428
- International Application: PCT/EP2016/067970 WO 20160728
- International Announcement: WO2017/021265 WO 20170209
- Main IPC: B66B7/12
- IPC: B66B7/12 ; D07B1/14 ; B66B7/08 ; B66B19/00 ; G01R31/08 ; B66B7/06 ; G01M5/00 ; G01N27/20

Abstract:
A method for determining a deterioration state in a suspension member arrangement having a suspension member including a plurality of electrically conductive cords includes the steps of: counting a number of bending cycles applied to the suspension member; measuring an electrical characteristic of the suspension member upon applying an electrical voltage to at least one of the cords; performing at least one of (a) determining a critical deterioration state upon monitoring both the bending cycles number and the electrical characteristic, and (b) determining an unexpected deterioration state based on deriving a current actual deterioration state of the suspension member based on the electrical characteristic and assuming a currently expected deterioration state based on the bending cycles number and comparing the current actual deterioration state with the currently expected deterioration state; initiating a defined procedure upon determining at least one of the critical deterioration state and the unexpected deterioration state.
Public/Granted literature
- US20180215584A1 METHOD AND DEVICE FOR DETERMINING A DETERIORATION STATE IN A SUSPENSION MEMBER FOR AN ELEVATOR Public/Granted day:2018-08-02
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