| 摘要 |
A punching apparatus for a binder is provided to allow a user to make holes at desired position only by using an injection pressure so that the user conveniently carries with the binder. A punching apparatus(300) for a binder includes a lower member(310), an upper member(320), a connection member(330), and a punching device(340). The lower member is coupled with the binder at a predetermined position of the binder. The upper member is provided on the lower member and spaced apart from the lower member. The connection member connects the lower member to the upper member. The punching device includes a body having a cylindrical shape. The punching device is coupled to the upper member such that the punching device rotates. |
