Filling device for papers

A filing device comprising a ring binding mechanism for attachment to the inside of a protective file cover having upper and lower edges, said ring binding mechanism having a sprung cover, ring carrying elements, and ring components carried pairwise by said ring carrying elements for rocking movements thereby allowing said ring binding mechanism to be operned and closed, a slide disposed at each longitudinal end of said ring binding mechanism, each of said slides being slidably mounted for limited longitudinal displacement along said ring binding mechanism between operative and inoperative positions, and a locking element on said slide engageable with said ring carrying elements to secure said ring components of said ring mechanisms against opening when said slide is displaced to said operative position, said locking element being disengaged from said ring carrying elements when said slide is disposed in said inoperative position such that said ring binding elements are free to be opened, an outer end of said slide comprising a suspension means which, in said operative position of said slide, extends beyond the corresponding longitudinal end of said ring mechanism and beyond said edges of said protective file cover, thereby enabling the device to be suspended from a file carrier, said suspension means being disposed substantially within said protective file cover when said slide is in said inoperative position, said suspension means being disposed substantially at the outer end of said slide and includes a flange element disposed at an angle to the plane of a main section of said slide, said flange element defining a support surface for suspending the filing device from said file carrier.