Ladder joint for a folding collapsible ladder
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United States of America Patent
Stats
-
Oct 11, 1994
Grant Date -
N/A
app pub date -
Oct 14, 1993
filing date -
Oct 14, 1993
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A ladder joint includes a pivot, a first base plate mounted on the pivot and connected to a first side rail section of one side rail of a ladder, a second base plate mounted on the pivot and connected to a second side rail section of the side rail, a spring-supported lever pivoted to the pivot, a lock bolt inserted through an eccentric hole on the second base plate and controlled by the lever to engage into either of a series of eccentric holes on the first base plate.
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