Cut-off mechanism for paper towel dispenser

Details Cut-off mechanism for paper towel dispenser Cut-off mechanism for paper towel dispenser

B - Operations, Transporting

26

D

219/16

B26D 5/26 (2006.01) A47K 10/36 (2006.01) B26D 1/30 (2006.01)

Patent

CA 1085350

ABSTRACT A cut-off mechanism is provided in a dispenser for dispensing a web of paper towel from a supply roll thereof, the cut-off mechanism including a flat cam member fixedly secured to the dispenser feed roller for rotation therewith and a drive member having a generally cylindrical portion cooperating with the cam member to form a chamber for a spiral coiled spring se- cured between the drive member and the dispenser feed roller so that rotation or the latter with respect to the former during dispensing of the web winds the spring. The drive member is con- nected by linkage to a movable cutting blade and is also provided with a stop surface which is engageable with a latch member nor- mally to hold the movable blade motionless during winding of the spring. The cam member engages the latch to release the drive member after a predetermined length of web has been dispensed to drive the cutting member, by unwinding of the wound spring, into cooperation with a fixed blade substantially to sever the dispensed web from the supply roll. A cam portion on the drive member engages the latch member to release the cam member after the cutting operation.

310240

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