Door wedge has an open wooden structure containing a wooden ball rotating about a horizontal axis

摘要

A wooden door wedge has an open structure (a) fitted with a wooden ball (b) rotating about a horizontal axis linking the two sides of the wedge. The wedge has a length of 14 cm., a width of 5 cm. and a maximum height of 3 cm. The wooden ball has a diameter of 2.5 cm. with its outer profile extending above and below the wedge. The user pushes the wedge with the foot, with the ball providing an easier sliding action on all floor coverings.