Coupling arrangement between a trailer and a pulling vehicle
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Feb 4, 2003
Grant Date -
Sep 12, 2002
app pub date -
Mar 7, 2001
filing date -
Mar 7, 2001
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A coupling arrangement between a trailer and a pulling vehicle wherein the pulling vehicle includes a first coupling plate on which the corresponding second coupling plate of the trailer is placed for obtaining locked coupling. The plates have low friction surfaces allowing the second plate to rotate on the first plate. The plates are locked to each other by a vertical pin fixed to the second coupling plate. The first coupling plate includes an open groove for the pin to get into the locking position in the end of the groove. The coupling arrangement further includes a movable locking part fixed to the second plate and being able by means of a spring to move into the groove of the first coupling plate when the plates are rotating in relation to each other.
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