COUPLING WITH SAFETY LOCK OF THE DRIVESHAFT OF A HAND-TOOL
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United States of America Patent
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N/A
Issued Date -
Mar 7, 2013
app pub date -
Nov 5, 2010
filing date -
May 7, 2010
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
A coupling has a safety lock and receives a flexible driveshaft with a tube into a hand-tool. The coupling contains a pinion as part of a drive transmission of the hand-tool and a lever on a handle. An opening of the pinion can be connected to an end of the driveshaft, and the lever engages into a retaining groove of the tube as long as the lever is gripped together with the handle. In a drive position, a direct positive engagement between the driveshaft and the pinion is produced, and the transmission is thus driven. The coupling contains a spring that pushes the driveshaft into a rearward rest position as soon as the lever on the handle is released, whereby the positive engagement between the driveshaft and the pinion is disengaged and the transmission is thus set to rest.
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