Keyless chuck gripping device
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jul 17, 1984
Grant Date -
N/A
app pub date -
Jun 4, 1981
filing date -
Jun 4, 1981
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A keyless chuck gripping device for opening or closing jaws of a chuck of a rotary tool without using a chuck key includes a first portion having a surface extending at least partially around an outer surface of a chuck locking drum. The first portion is attached to a forward housing portion of the rotary tool or the outer surface of the chuck locking drum. A second portion connected to the first portion is urged into frictional or lock engagement with the unattached portion of the rotary tool where manual actuation alters rotational speed of the chuck locking drum relative to the speed of the rotary tool shaft. The second portion maintains the chuck locking drum in a stationary position while the shaft is driven by the motor, enabling the chuck locking drum to turn the chuck jaws in forward or reverse direction.
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