CAP OPENER

PROBLEM TO BE SOLVED: To provide a cap opener suitable for portable use, allowing a user to easily open a cap without excessive force as well as a pull-top without any skill.SOLUTION: An insertion hole 12 in the shape of a substantially perfect circle, into which a cap W1 of a bottle container W is inserted, is formed on a thin plate-like substrate 10 having a substantially rectangular shape. A plurality of pawl parts 13 for opening the cap are arranged, with tips in contact with the front side of a groove between adjacent vertical knurlings W2 of the cap W1 from behind in the opening direction when the cap W1 is opened, on the inner peripheral surface of the insertion hole 12. A pawl part 21 for opening a pull-top, which is projected outward in the lateral direction of the substrate 10 so that the pawl part may be inserted into a ring portion of the pull-top can, is arranged at one corner of one side of the substrate 10 in the longitudinal direction.