Automatic latching lockout shaft sensing coupler
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United States of America Patent
Stats
-
Dec 23, 2003
Grant Date -
Feb 13, 2003
app pub date -
Aug 13, 2001
filing date -
Aug 13, 2001
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A coupler assembly for axially coupling a hub onto a shaft includes a latch assembly that prevents a locking collar from latching to the hub in a released or disengaged position when the shaft is in the hub. The collar latch assembly includes a latch ring biased eccentrically about the hub and release members when in a released position so as to engage a surface of the hub. When the shaft is inserted into the hub, the release members move to a radially outward position and center the latch ring on the hub. This allows the collar to slide by spring force to a locked position in which the locking members are moved radially inward to engage recesses in the shaft. The release members remain in the radially outward position as long as the shaft is in the hub, thereby preventing the locking ring from engaging the hub and locking the collar in the released position while the shaft is engaged with the hub.
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