Suit-case on wheels with an incorporated dragging device

Claim 2

A suit-case on wheels comprising two half-shells, wheels attached to a side of said suit-case, one half-shell defining an enclosed seat extending the length of a side opposite the wheels, a slider slidably guided in said seat, a grippable handle articulated to said slider and housable within said seat in an extractable manner, said articulation extending beyond said seat when said handle is extracted, a snap-connector attached to said slider, a control knob housed at an end of said seat distant from the end from which said handle is extracted to which said snap-connector is snapp-connectable and an extension provided on said control knob arranged to release said snap-connector with said slider.

Claim 3

The suit-case as claimed in claim 1, wherein said control knob includes a socket having an annular undercut, said knob having a tubular extension upon which said socket is slidable, said snap-connector comprising a plurality of resiliently yieldable tongues extending axially from said slider and each terminating in a retension tooth snap-engageable with the annular undercut of said socket, said extension being arranged to act on said teeth in the sense of releasing them from said undercut, a spring between said knob and said socket and a spring between said socket and said slider said spring between said knob and said socket being less powerful than the spring between said socket and said slider.