Sheet cutting device

A sheet cutting device for cutting sheet material into sections, comprising:

• a support;
• an elongated fixed blade secured to said support and having a predetermined length at least as long as a maximum width of sheet material to be cut;
• a blade-supporting mechanism including a swing member pivotally connected to said support for movement about a first axis and a blade holder pivotally connected to said swing member for movement about a second axis, said first and second axes being spaced apart, said swing member including first and second pivot arms that are unequal in length;
• an elongated second blade secured to said blade holder;
• an actuator operably connected to said blade-supporting mechanism for rotating said blade-supporting mechanism about said first axis;
• and
• a spring attached to said blade holder for biasing said blade holder about said second axis so that said elongated second blade continuously shearingly engages said fixed blade when said blade holder is rotated by said actuator.

A sheet cutting device for cutting sections from a supply of sheet material, comprising:

• a housing defining an output aperture for outputting a section of sheet material;
• a fixed blade supported in said housing;
• a second blade;
• a blade-supporting mechanism for movably supporting said second blade in said housing for non-planar movement past said fixed blade, said fixed and second blades comprising non-parallel bars, said blade-supporting mechanism including means for holding said second blade at an angle relative to said fixed blade and including means for moving said second blade with a curvilinear sweeping motion so that said second blade continuously engages said fixed blade at a continuously shifting shear point as said second blade is moved along a cutting stroke from a cut-initiating position to a cut-terminating position, said second blade, when proximate said cut-terminating position, moving in a direction at least partially toward said output aperture so that said second blade kicks each newly cut section away from said fixed blade toward said output aperture.