Switching mechanism for a fastening-bar closing device

A switching mechanism for a fastening-bar closing device with a switch housing mounted with the rear, in particular, on a cuff or fold and with sections of two fastening bars extending into the housing and movably coupled with one another around a power transmitting means that switches by 180 degrees in such a way that a linear motion of one of the two bars in one direction propels the other bar in the opposite direction. The power transmitting means includes a number of pusher elements that are contiguous with one another and, grouped in two uninterrupted rows, are positioned so that they can slide in a 180-degree channel of the switch housing resulting from a housing aperture, with a stud extending in the middle of the housing aperture that is of about the height of the pusher elements, distinguished in that the pusher elements are rounded cylindrical bodies, which are retained in the channel by a cap that merely covers the peripheral area of the housing aperture, and that the gap between the cap and the wall of the housing aperture is large enough so that the sections of the two fastening bars can extend into it.