Rotary drum release for a drain cleaning machine
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United States of America Patent
Stats
-
Sep 16, 2003
Grant Date -
Feb 13, 2003
app pub date -
Aug 10, 2001
filing date -
Aug 10, 2001
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A rotary drum release assembly includes a multiple of lock pins which engage a rotary drum shaft to lock and unlock a rotary drum to a drain cleaning machine without the need for tools. The rotary drum release assembly is mounted within a support frame assembly. A rotary drum shaft groove is located within a sleeve mounted to the support frame assembly to minimize localized weakening of the shaft. Rotation of an actuating handle engages cam surfaces with the lock pins to overcome their spring bias of the lock pins and simultaneously drive the lock pins away from the shaft to allow release of the drum. To mount the drum, the drum shaft is pushed into the sleeve and the lock pins are received into the shaft groove.
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