Multi-position releasable lip latch for a dock leveler
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Dec 3, 2002
Grant Date -
Oct 17, 2002
app pub date -
Apr 17, 2001
filing date -
Apr 17, 2001
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A dock leveler having a frame and a deck pivotably mounted at one end thereof to the frame. A lip is pivotably mounted to the deck at another end thereof. A lip latch and lip extension mechanism are mounted to the leveler and comprises a lip latch pivotably connected to the deck by a crank mechanism and a latch bar pivotably connected to the crank mechanism. The latch bar has one end selectively engaging a latch bracket mounted to the deck. A bar is connected at one end to the crank mechanism and another end is operably connected to the lip. A first spring is operably connected to the crank mechanism and the frame. A second spring is operably connected to the bar and the frame. A third spring operably couples another end of the latch bar to the second spring. Upon upward movement of the deck the first spring urges the crank mechanism in a first direction to move the bar so that the lip is raised from a pendant position to an extended position and the latch bar moves based on movement of the crank mechanism and engages the latch bracket at a first point to hold the lip in the extended position and is maintained in engagement by the third spring.
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