The Physical Knowledge Of The Stapler Construction

- Dec 18, 2017-

Stapler is labor-saving lever, large stapler is more obvious, the position of nails in the hand to the hinge length of about half, the force of human role is longer, so labor-saving ordinary small stapler basic not effort, the arm is the same.

Spring elasticity According to the part of the rough, increase the friction with the hand, do not slip increase contact area, reduce pressure, so book hand does not hurt stapler needle, in order to increase the pressure, the force at the width of the pressure, there is also a lever principle, the base has fine stripes, increase friction.