A pinch roller apparatus which can stably move a tape in accordance with a sufficient self-aligning function is provided. The housing is consisted of a cover and a base, and the cover is provided with a plurality of receptacles or even switches. The appliance is characterized in that: the aforementioned side wall includes a widened section, the lifting means extends directly vertically above the widened section, and the respective projections of the lifting means and of the widened section overlap in a single plane parallel to the axis of rotation. The safety device comprises a second measuring device, which can measure a second physical variable having a functional relationship with the first electric variable. Optimized sag control is provided as well as enhanced structural rigidity, and wafer seating features.