TRANSPORTATION DEVICE COMPRISING A SAFETY DEVICE FOR LIMITING DECELERATION
Number of patents in Portfolio can not be more than 2000
United States of America
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Issued Date -
Jan 16, 2020
app pub date -
Sep 14, 2017
filing date -
Sep 14, 2017
priority date (Note) -
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status (Latency Note)
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Abstract
A transportation device such as an elevator installation, an escalator, or a moving walkway may comprise a person conveying unit and an electromagnetic linear drive for driving the person conveying unit. The electromagnetic linear drive may include a stator segment and a runner element. The runner element can be driven by the force of an electromagnetic field of the stator segment in a first drive direction or in an opposite second drive direction. The runner element is movably mounted on the person conveying unit such that a magnetic resistance in an air gap between the stator segment and the runner element is adjustable depending on a drive force acting between the stator segment and the runner element.
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