| 摘要 |
A container cap (1) which is easy to classify and discard. The container cap (1) comprises a body portion (1a) and a projection (1b) provided substantially centrally on and integrally with the top surface (1a1) of the body portion (1a), and covers an opening of a bottle (vessel) (2) and a sealing plug which blocks the opening. Provided on the container cap (1) are first annular thin-walled portions (breakable portion) (5) extending partially around the periphery of the base portion of the projection (1b) for bending the projection (1b), a second thin-walled portion (breakable portion) (6) extending from one end of the first thin-walled portion (5) through the top surface (1a1) of the body portion (1a) to a lower end of an outer peripheral surface (1a2), a third thin-walled portion (breakable portion) (7) extending from the other end of the first thin-walled portion (5) to the outer peripheral edge of the top surface (1a1) of the body portion (1a) and fourth thin-walled portions (breakable portion) (8) extending from the midway of the first thin-walled portion (5) to the outer peripheral edge of the top surface (1a1) of the body portion (1a). |
