Construction toy roller chain - has rollers held between plates with joining pins fitting on axles

摘要

The construction toy chain consists of links (1) with two rollers (3) supported by two plates (4). The rollers rotate on axles (2) and the elements are joined together by side plates (6). The elements can be at angles to each other and to the joining pieces. The axles are cylindrical rods (5) that are pushed through holes (4a) in the plates and jut out beyond them, so that the side plates can be pushed onto their ends (5,5a). The axles can be tubular and pins with heads on one end can fit into them, to hold the side plates.