In 1869, Thomas Briggs of Boston, Massachusetts, invented a machine that could break a wire and bend it into a U shape, then use it to nail the pages, and finally bend it to properly hold the book. it is good. In 1894, he used a manufacturing process in which the iron wire was first rolled and bent to form a string of "U" shaped staples. These nails are then loaded into a machine that can be used to embed these nails in the paper. This machine is the prototype of today's office and home staplers. In fact, the earliest stapler was not an office item at all, it was developed for the printing industry.
The working principle of the stapler is that when the end of the stapler is pressed by the hand, the top, the needle and the clamp will rotate around the connecting pin. As the force of the hand is continuously applied, the top will rotate to the natural state. When the top is made around the connecting pin, the upper and lower movements are slightly larger than one needle height, the end cover spring is compressed, and the elastic piece is compressed, which will drive the downward movement of the needle. After moving a certain distance, the needle will contact the object to be bound. And through the action of the human body, the needle will touch the mold after passing through the object, the needle is bent, thereby achieving the penetration binding between the needle and the object; after the binding is completed, the person removes the force on the needle end cover. At this time, the shrapnel will rebound, and the needle, the clamp, the top and the end cap will rise under the action of the elastic force, and then the rebound of the end cover spring causes the top and the end cover to rise again, and the top is separated from the fixture; The expansion of the spring causes the needle to feed again, causing the stapler to return to its original state, waiting for re-binding.
The types of staplers are divided into ordinary staplers, mini staplers, heavy duty staplers, long-arm staplers, and environmental staplers. Ordinary stapler staples are no more than 20 sheets of 10#, 12#, and 14# stapled paper. More than 20 sheets, the stapler is difficult to fully staple. The heavy-duty stapler has more than 100 sheets of stapled paper, which is much larger than the ordinary stapler. The staples are 23/6, 23/13. The mini stapler is small in size and easy to carry, but the number of stapled papers is small. The long-arm stapler is an extension of the ordinary stapler. It has a special binding depth gauge and positioning cursor, which can clearly display the paper depth, and can be optional, suitable for binding at any angle and any position. The eco-stapler is a tool that can easily staple several sheets of paper without using a staple. Made of plastic, it looks a bit like a double-decker birthday cake. However, there is a slit under the “cakeâ€. Just put the paper into the slit and then “stap†the paper easily by pressing it like a regular stapler. An oval hole is pressed into the paper, and there is a gap at the edge of the hole. The piece of paper that has been pressed is not inserted into the slit.
The stapler utilizes the principle of leverage. The spring elastic force is made rough, the friction with the hand is increased, the contact area is increased without slipping, and the pressure is reduced, so the stapler does not hurt. The stapler has a thin needle tip. In order to increase the pressure, the force is wide to reduce the pressure, and the base has fine stripes to increase the friction. There are many brands of staplers, such as Prosperity, PLUS, Deli, ESD, Qixin, etc., almost everyone in the office will have a stapler on the desk.
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