Patent ID: 8020740

Claim:
An effort-saving stapler comprising: a first activating mechanism including a first distal end defining a first gripping section to be gripped during operation, a second distal end defining a first connecting section, and a first abutting ridge disposed between the first and second distal ends; a second activating mechanism including a third distal end defining a second gripping section to be gripped during operation, a fourth distal end including a ram and with the ram defined on a body, and an arm branching from the body and including a second connecting section pivotally connecting to the first connecting section, with the second activating mechanism pivotally connected to the first activating mechanism about a first fulcrum point; a pushing mechanism including a fifth distal end defining a third connecting section, a sixth distal end including an anvil, and a second abutting ridge disposed between the fifth and sixth distal ends, with the second abutting ridge contacting with the first abutting edge for supporting the pushing mechanism on the first activating mechanism, and with the first and second abutting ridges defining a contact point; and a magazine receiving staples disposed between the pushing mechanism and second activating mechanism and including a seventh distal end defining a fourth connecting section pivotally connected to the third connecting section at a second fulcrum point and a eighth distal end defining a staple-ejecting section; and wherein the pushing mechanism is urged by the first activating mechanism, and then the pushing mechanism would urge the magazine towards the second activating mechanism during operation, wherein the first fulcrum point and contact point define a resistance-force lever arm, wherein the contact point and the second fulcrum point define an applied-force lever arm, and wherein the resistance-force lever arm and the applied-force lever arm are in a straight line when bending legs of the staples for closing the staples in an effort-saving way.