Ball training device has first stationary coupling element made from stiffer material than rolling body, and first movable coupling element has end pivotable around roll axis and rotatable with regard to stationary coupling element

摘要

The ball training device has a first stationary coupling element (22) made from stiffer material than the rolling body (1) and fastened on a first side mounting wall (13). A first movable coupling element (230) has a first movable end (237) which is pivotable around the roll axis (X) and, under friction, is rotatable with regard to the first stationary end (222) of the first stationary coupling element. A second movable coupling element (23) is arranged so that it is pivotable around the roll axis and, under friction, is rotatable with regard to the second stationary coupling end.