Carriage for driving handrails of walkways and moving stairs
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United States of America Patent
Stats
-
Oct 13, 2009
Grant Date -
Jul 10, 2008
app pub date -
Dec 27, 2007
filing date -
Dec 29, 2006
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
The invention relates to a carriage for driving handrails of walkways and moving stairs, comprising a body (6) in the form of a vertical plate in which leading rollers (7) are assembled; two swinging locking pawls (12-13) for locking with a drive chain; a free turning wheel (24) intended to be supported against a cam profile in order to cause the pawls (12-13) to swing between an operative vertical position and an inoperative horizontal position; and an arm (8) intended to engage with the variable pitch screws.
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Cited Art Landscape
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