Tape dispenser with improved cutter assembly

摘要

A cutter assembly suitable for cutting BOPP adhesive tape and a tape dispenser incorporating the same. The cutter assembly has a row of plastic teeth where each tooth includes left and right front and rear faces, each face being disposed on a different plane, and where the planes intersect each other at the tip of the tooth. A front edge extends between the left and right front faces; a rear edge extends between the left and right rear faces; a left side edge extends between the right front and rear faces; and a right side edge extends between the left front face and the right rear face. The various edges are set at particular angles relative to each other. A protrusion for supporting the tape is provided rearwardly of the teeth and a braking mechanism is also provided on the dispenser.

主权项

1. A cutter assembly for a household tape dispenser suitable for cutting BOPP adhesive tape, said cutter assembly comprising:
a base having a front region with a first end and a second end, said base being adapted to be disposed at a front end of a tape dispenser and between a first and a second side member thereof; a row of plastic teeth extending upwardly and outwardly from the first end of the base; and wherein the row of teeth includes at least a first tooth, a second tooth and a third tooth, wherein the second tooth is adjacent the first tooth and the third tooth is adjacent the second tooth, and wherein each of the first, second and third teeth includes:
a left front face disposed in a first plane where the first plane is oriented at a first angle relative to the front region of the base;a right front face disposed in a second plane where the second plane is oriented at a second angle relative to the front region of the base; wherein the left and right front faces meet along a single central front edge and the first plane is angled relative to the second plane; and the front edge extends upwardly from the front region of the base and each of the left and right front faces angles rearwardly away from the front edge;
a left rear face disposed in a third plane; anda right rear face disposed in a fourth plane; and wherein the left and right rear faces are angled relative to each other and meet along a single central rear edge and wherein the third and fourth planes are angled relative to each other and the left and right rear faces angle forwardly away from the rear edge; and wherein the rear edge is opposite the front edge; and wherein the first, second, third and fourth planes intersect each other at a discrete point and which point forms an uppermost tip of the tooth; and wherein a length of the central rear edge is shorter than a length of the central front edge.