| 摘要 |
PROBLEM TO BE SOLVED: To provide a cap falling prevention structure which can be easily assembled, can stably obtain required characteristics of being hardly pulled out, moreover, is more hardly pulled out in proportion to a force in the direction of being pulled out, can facilitate quality control, can increase options for the selection of materials of a cap, and can reduce the number of components and man-hours of assembling.SOLUTION: A cap 1 includes a tubular part 1b that is protrusively disposed on a back surface side thereof and a plurality of through-holes 1d that makes the inside and outside of the tubular part 1b communicate with each other. A holder member 2 is obtained by molding elastically deformable materials and includes: a holder body 2a provided with a plurality of arms 2e extended to an obliquely rear side from a top 2d; a retaining part 2b having a shape larger than the opening diameter of an opening of a container; and a connection part 2c that connects the retaining part 2b and the top 2d. The holder body 2a is made to enter the inside of the tubular part 1b of the cap 1, and the tops 2f of the respective arms 2e of the holder body 2a are made to enter the respective through-holes 1d of the tubular part 1b of the cap 1 from the inside, respectively, and locked. |
