Can opener

A can opener for severing the lid from a can, including support structure, drive structure,

• a driving wheel connected in driven relation to said drive structure and rotatably mounted on said support structure, said driving wheel, for the purpose of propelling the can, being adapted to engage from outside under the seam of the can at a point of engagement,
• a pivot shaft on said support structure at a predetermined distance from said driving wheel,
• a cutter mounted on said pivot shaft and pivotable from an initial position above the lid of a can into a cutting position, said cutter having a piercing tip and an adjoining cutting edge with a cutting area which is in engagement with the lid when said cutter is in said cutting position,
• a first abutment stop fixed on said support structure for guiding the can relative to said cutting edge, said first abutment stop being arranged rearwardly of said point of engagement on the can opener when viewed in the direction of movement of the can by said driving wheel, and
• a second abutment stop on said cutter, said second abutment stop acting upon the seam of the can from above with said cutter in said cutting position, said second abutment stop being secured to said cutter immediately adjacent said cutting edge and laterally protruding from said cutter on the side close to said driving wheel.

A can opener for severing the lid from a can, including a support structure, drive structure,

• a driving wheel connected in driven relation to said drive structure and rotatably mounted on said support structure, said driving wheel, for the purpose of propelling the can, being adapted to engage from outside under the seam of the can at a point of engagement,
• a pivot shaft on said support structure at a predetermined distance from said driving wheel,
• a cutter mounted on said pivot shaft and pivotable from an initial position above the lid of a can into a cutting position, said cutter having a piercing tip and an adjoining cutting edge with a cutting area which is in engagement with the lid when said cutter is in said cutting position,
• a first abutment stop fixed on said support structure for guiding the can relative to said cutting edge, said first abutment stop being arranged rearwardly of said point of engagement on the can opener when viewed in the direction of movement of the can by said driving wheel, and
• a second abutment stop on said cutter, said second abutment stop acting upon the seam of the can from above with said cutter in said cutting position, the perpendicular drawn on said cutting edge through said cutting area lies at a distance (b) ahead of the center of said pivot shaft (13) of said cutter, when viewed in the direction of movement of the can by said driving wheel, and that the relationship between said distance (b), the vertical distance (c) measured from the center of said pivot shaft of said cutter to said cutting edge, and the cutting angle (a) which is formed by said cutting edge and the can lid to be severed, is as follows:
• b/c.multidot.cot a>1