Toolbar folding wing lock
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United States of America Patent
Stats
-
Jul 30, 1996
Grant Date -
N/A
app pub date -
Apr 13, 1995
filing date -
Apr 13, 1995
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The toolbar (10) includes a center section (12), a first wing (14) and a second wing (16). The first wing (14) is pivotally attached to the center section (12) by a first wing pivot pin (132). A double acting hydraulic cylinder (154) for pivoting the first wing (14) relative to the center section (12) is pivotally attached to the center section and to a lift link (146) which is also attached to the first wing by a pin (148). The lift link (146) increases the range of movement of the first wing (14) relative to first wing pivot axis (138). A lift link lock latch bar (198) is pivoted about the axis of pendulum shaft (188) by a pendulum weight (194) and moved into a position in which movement of the lift link (146) relative to the first wing 14 is blocked. Retraction of the cylinder 154 moves the first wing (14) toward a transport position and the pendulum weight 194 pivots the lift link lock latch bar (198) away from the lift link (146) thereby freeing the first wing (14) to pivot to its transport position. The second wing (16) is attached to the center section (12) and folded in the same way as the first wing (14).
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