Electrically powered dispenser for rolled sheet material having a rotary blade cutter
First Claim
1. A dispenser for rolled sheet material comprising a hollow housing, means in the housing to rotatably support a roll of sheet material, said housing including a discharge slot through which a web of sheet material can be discharged, means in said housing to move a web of material through the discharge slot, and means in said housing for cutting the web of material adjacent to but spaced from the discharge slot, said cutting means comprising a carriage movable transversely of the web of material, a motor mounted on the carriage and including an output shaft, a rotary circular cutting blade mounted on the output shaft with the periphery of the blade engaging and cutting the web of material when the carriage is moved transversely of the path of movement of the web of material, said means in the housing to move a web of material including a feed roller engaging one surface of the web of material, a feed roller follower engaging the opposite surface of the web of material in opposed relation to the feed roller with the feed roller follower being a plate-like member having an upwardly offset portion engaging the web of material, said follower being pivotally mounted and spring biased toward the feed roller, a feed roller drive motor connected to the feed roller through a reduction drive train, and a feed roller wiper engaged with the periphery of the feed roller in spaced relation to the follower to prevent the web of material from wrapping around the feed roller.
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Accused Products
Abstract
A dispenser for sheet material supplied in a spirally wound roll such as paper towels, or the like, in which the paper web is fed from the supply roll by an electrically driven feed roller and an opposed spring biased feed roller follower for gripping and feeding the paper web through a discharge slot in a housing. A reciprocating cutter assembly is mounted adjacent the discharge slot and feed roller which includes a carriage with an electrically driven rotary cutter blade mounted thereon with the carriage being guided by a guide structure and propelled transversely of the path of the paper web by an electrically powered cable and drum arrangement.
51 Citations
11 Claims
- 1. A dispenser for rolled sheet material comprising a hollow housing, means in the housing to rotatably support a roll of sheet material, said housing including a discharge slot through which a web of sheet material can be discharged, means in said housing to move a web of material through the discharge slot, and means in said housing for cutting the web of material adjacent to but spaced from the discharge slot, said cutting means comprising a carriage movable transversely of the web of material, a motor mounted on the carriage and including an output shaft, a rotary circular cutting blade mounted on the output shaft with the periphery of the blade engaging and cutting the web of material when the carriage is moved transversely of the path of movement of the web of material, said means in the housing to move a web of material including a feed roller engaging one surface of the web of material, a feed roller follower engaging the opposite surface of the web of material in opposed relation to the feed roller with the feed roller follower being a plate-like member having an upwardly offset portion engaging the web of material, said follower being pivotally mounted and spring biased toward the feed roller, a feed roller drive motor connected to the feed roller through a reduction drive train, and a feed roller wiper engaged with the periphery of the feed roller in spaced relation to the follower to prevent the web of material from wrapping around the feed roller.
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11. A dispenser for sheet material spirally wound into a roll comprising a housing having a discharge slot, means interiorly of the housing to rotatably support a roll of sheet material with the free end of the sheet material being extendable outwardly through the discharge slot, means oriented internally of the housing for feeding sheet material from the supply roll through the discharge slot and means in said housing to cut the sheet material transversely between the feed means and discharge slot by which a predetermined length of sheet material may be severed, said feed means including a driven feed roller positioned parallel to the discharge slot and roll of sheet material with the sheet material engaging a substantial circumferential portion of the feed roller as the sheet material passes under the feed roller, said feed roller including a resilient peripheral surface for gripping engagement with the sheet material, a feed roller follower positioned below the feed roller and engaging the sheet material in opposed relation to surface of the feed roller, said follower being in the form of a pivotally mounted plate-like member having an upwardly offset portion engaging the undersurface of the sheet material at a transverse area generally aligned with the rotational axis of the feed roller with the follower and feed roller cooperating to frictionally grip the sheet material for pulling it off of the supply roll and discharging it through the discharge slot, a feed roller wiper disposed above the sheet material and oriented between the feed roller and discharge slot, said feed roller including peripheral grooves and said wiper including fingers extending downwardly under the feed roller and curving upwardly and terminating in tapered free ends above the point of engagement of the sheet material with the feed roller as it approaches the feed roller with the fingers being received in the grooves in the feed roller to assure that the sheet material will not wrap around the feed roller, said wiper including a downwardly facing generally horizontal surface extending from the feed roller toward the discharge slot to guide sheet material into the discharge slot, said means for cutting the sheet material including a carriage in the housing, means supporting the carriage for reciprocatory movement parallel to the discharge slot and adjacent thereto and between the discharge slot and wiper, a cutter blade mounted on the carriage in underlying relation to the sheet of material for cutting the sheet of material from the undersurface thereof, means moving the carriage in a reciprocating manner in relation to the housing and discharge slot, said cutter blade being a circular blade, a motor on the carriage having an output shaft connected to the circular blade for driving the blade independently of the means to move the carriage, said housing including a movable closure door for the discharge slot during the cutting operation to prevent accidental contact with the rotary blade.
Specification