Title:
OVERLOAD PROTECTION SYSTEM FOR A BUILDER'S HOIST
Document Type and Number:
WIPO Patent Application WO1999040014
Kind Code:
A3
Abstract:
The invention relates to a builder's hoist, comprising a hoist mast, a hoist cab, and at least one electric drive motor for moving the hoist cab up and down the hoist mast. An overload protection system is also provided. The aim of the invention is to create an overload protection system as simply as possible for a builder's hoist which is provided with at least two drive motors. To this end, at least two drive motors (5, 6) are provided and the overload protection system has a device for adding up the forces present in the supports of the drive motors (5, 6). Said device is connected to a limit switch (14).
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| JP2010285277 | LIVE LOAD DETECTING DEVICE OF ELEVATOR |
Inventors:
LOEBBE HARTMUT (DE)
KOLKMANN FRANK (DE)
KOLKMANN FRANK (DE)
Application Number:
PCT/EP1999/000534
Publication Date:
September 16, 1999
Filing Date:
January 27, 1999
Export Citation:
Assignee:
STEINWEG HERMANN GMBH CO KG (DE)
LOEBBE HARTMUT (DE)
KOLKMANN FRANK (DE)
LOEBBE HARTMUT (DE)
KOLKMANN FRANK (DE)
International Classes:
B66B5/14; B66B9/187; (IPC1-7): B66B9/187; B66B5/14
Foreign References:
| US4498556A | 1985-02-12 |
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