Positioning mechanism of a zipper slide

A positioning mechanism of a zipper slide, comprising:

• a main body having a buckling portion, a plane surface, a recess, and a support portion formed thereon, wherein an engagement channel is formed in the main body, the buckling portion forming a clipping slot;
• a positioning member having a first end engaging the buckling portion of the main body, and a second end defining a locking part inserting into the recess of the main body,
• a pull tab unit coupled to the main body the pull tab unit having a beam formed at a front end thereof disposed on the plane surface;
• a lid coupled to the main body and covering the buckling portion, the plane surface, the recess, the support portion, the positioning member, and the front end of the pull tab unit;
• a restraining stick coupled at an inner end portion to the clipping slot of the buckling portion, the restraining stick having a free outer end portion bearing against the positioning member for biasing the second end thereof along a predetermined direction, the restraining stick being made by punching technique.