Snap latch drum release for a drain cleaning machine
AssigneeMasco Corporation
InventorRandall Paul Schmitt
Life of this patent
Estimating the term…
Abstract
A snap latch drum release assembly includes a multiple of latches which engage the inner diameter of a plate spaced away from a rotary drum to lock and unlock the rotary drum of a drain cleaning machine without the need for tools. As the latches engage a plate on the drum, no shaft grooves are located in the shaft to weaken it. The snap latch drum release assembly is mounted on a support frame assembly. Lifting of an actuating handle engages pins in the latch surfaces to overcome their spring bias and simultaneously drive the latches away from the plate to allow release of the drum. To mount the drum, the drum shaft is pushed into the sleeve and the latches are received onto the latch plate.
Claims19
A drum release assembly for a drain cleaning machine comprising:
- a sleeve defining an axis of rotation;
- a plate having an inner opening about said axis of rotation;
- a latch movably mounted relative to said inner opening and substantially perpendicular to said axis of rotation;
- and
- a biasing member to bias said latch away from said axis of rotation.
A release assembly for a drain cleaning machine comprising:
- a sleeve to rotatably receive a rotary drum shaft defining an axis of rotation;
- an annular disk having an inner opening defined about said axis of rotation;
- a latch sleeve extending perpendicular from said sleeve;
- a latch telescopically mounted within said latch sleeve;
- and
- a biasing member to bias said latch away from said axis of rotation to retain said disk with said latch.
A drain cleaning machine comprising:
- a support frame;
- a removable rotary drum;
- a rotary drum shaft extending from said rotary drum, said rotary drum shaft defining an aids of rotation;
- a drive assembly to rotate said rotary drum about said axis of rotation;
- a sleeve mounted to said frame to rotatably receive said rotary drum shaft;
- an annular disk having an inner opening defined about said aids of rotation, said annular disk mounted to said removable rotary drum, said inner opening spaced away from a face of said removable rotary drum;
- a latch sleeve extending perpendicular from said sleeve;
- a latch telescopically mounted within said latch sleeve;
- and
- a biasing member to bias said larch away from said axis of rotation to retain said annular disk with said latch.
Dependencies are inferred from the claim text.