Reading lens for use on shopping trolley, has threaded nut inserted into boreholes in sidepiece of foot, and fastening screw resting on level of screw head and combing with thread in threaded nut

摘要

The lens (1) has a foot (17) provided with a fastening device and a support arm (15). The support arm connects a lens glass (11) with the foot. The fastening device has a U-shaped holding- and clamping part suspended at an upper edge (7) of a shopping trolley (3). The holding- and clamping part is inserted into the fastening device and secured against shifting and rotation. A threaded nut is inserted into boreholes in a sidepiece of the foot. A fastening screw rests on a level of a screw head and combs with a thread in the threaded nut.