Invention Grant
- Patent Title: Elevator and arrangement for emergency stopping an elevator car
- Patent Title (中): 电梯和紧急停车电梯
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Application No.: US12230836Application Date: 2008-09-05
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Publication No.: US09038781B2Publication Date: 2015-05-26
- Inventor: Jorma Mustalahti , Esko Aulanko
- Applicant: Jorma Mustalahti , Esko Aulanko
- Applicant Address: FI Helsinki
- Assignee: KONE CORPORATION
- Current Assignee: KONE CORPORATION
- Current Assignee Address: FI Helsinki
- Agency: Harness, Dickey & Pierce, PLC
- Priority: FI20060329 20060404
- Main IPC: B66B11/08
- IPC: B66B11/08 ; F16D41/066 ; F16D43/18 ; B66B11/04

Abstract:
An elevator may include an elevator car, a set of hoisting ropes, a hoisting machine, a traction sheave, and a brake. The elevator car may be suspended on the hoisting ropes. The hoisting machine may drive the traction sheave to move the elevator car using the hoisting ropes. The brake may include a brake wheel and brake shoes. The brake may exert an effect on rotation of the traction sheave. During braking, the effect of the brake on the rotation of the traction sheave may depend on a direction of rotation of the traction sheave. The effect of the brake on the rotation of the traction sheave may be greater when the direction of rotation of the traction sheave during braking corresponds to the elevator car moving downward than when the direction of rotation of the traction sheave during braking corresponds to the elevator car moving upward.
Public/Granted literature
- US20090223748A1 Arrangement for stopping an elevator car in an emergency braking situation, and elevator Public/Granted day:2009-09-10
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