- Patent Title: Elevator system including monitoring arrangement to activate multiple emergency braking procedures associated with different decelerations and method of operating the same
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Application No.: US14304256Application Date: 2014-06-13
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Publication No.: US09776827B2Publication Date: 2017-10-03
- Inventor: Ari Harkonen , Petteri Valjus
- Applicant: Ari Harkonen , Petteri Valjus
- Applicant Address: FI Helsinki
- Assignee: KONE CORPORATION
- Current Assignee: KONE CORPORATION
- Current Assignee Address: FI Helsinki
- Agency: Harness, Dickey & Pierce, PLC
- Priority: FI20105033 20100118
- Main IPC: B66B1/32
- IPC: B66B1/32 ; B66B1/34 ; B66B5/04
Abstract:
The invention relates to an elevator system and also to a method for monitoring the movement an elevator car. In the method a first emergency braking procedure is activated for braking the elevator car at a first deceleration if the speed of the elevator car exceeds the first limit value for permitted speed, and also a second emergency braking procedure is further activated for braking the elevator car at a second deceleration that is greater than the first, if the speed of the elevator car exceeds the second limit value for permitted speed that is greater than the first limit value for permitted speed.
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