Opening needle pin equipped cap null for instantaneous adhesive agent

摘要

PURPOSE:To improve safety, convenience to use and manufacturing process by providing a notch part wherein a needle pin can be seen by eyes on the outer peripheral side surface of a cap. CONSTITUTION:In a cap 1 whose whole shape is approximately conic, a needle pin 2 for opening and tightly closing an instantaneous adhesive discharging nozzle is planted on a top surface center area 1a, and notch portions k to n wherein the needle pin 2 can be seen from the outside by eyes are provided on the outer peripheral bottom portion side surface 1b. It is preferable that two notch parts are formed so as to penetrate front surfaces k, n and back surfaces k', n'. Since the notch parts are provided, the tip 2a of the needle pin 2 can be embedded in the bottom surface A-A' of the outer periphery, for example, it can be raised on a flat surface, so that it is remarkably easily used because it is convenient for use and there is no problem in safety. Moreover, for example, adhesive stuck on the tip 2a of the pin 2 can be easily handled, and the cap is excellent in mechanical performance and its appearance.