Shelving support with rail guide piece - has clamp block with slanting ball bearing duct and spring loaded ball

摘要

The support for shelves and such like consists of at least one back and froint for instance in the form of a U-shaped rail (1). The rail may be inserted into the side of a cupboard. A clamp block (2) has a ball-bearing duct (4) sloping at an angle of roughly eighty to eighty-five degrees, but in the same plane as, the two sides of the guide rail. A ball (3) mounted under spring pressure in the duct, runs with a spherical segment over the surface of the wall of the clamp block pointing to the front or back wall of the guide piece.