Zipper is very common and common in our life. We can see it on many products in our life. Everyone is not unfamiliar with zipper. It relies on the continuous arrangement of fastener elements to combine or separate items. It is widely used in clothing, bags, tents, etc. A zipper is a chain attached to something to tighten, stabilize or guide it. The following will give you a detailed introduction to the little knowledge about zipper.
The working principle of the zipper is generally explained by the principle of resultant force and component force. When the zipper is opened, the triangular object moves together with the zipper between the two chains, and the pulling force of the hand produces two component forces on the triangular object;
In the case of a small angle, the force acting on the sharp corner is very large, and the two component forces exert force on the zipper and the component force is greater than the vertical downward resultant force, that is, the component force is greater than the pulling force of the hand, so it is difficult to directly separate Open zippers are easily separated by triangles.
