| 摘要 |
<p>The spiral link belt consists of a multiplicity of synthetic resin helices in which the windings of one helix mesh with the windings of the adjacent helices in zipper fashion. Pintle wires are inserted into the channels formed by the meshing windings of each of two helices with the winding of the helices penetrating into the material of the pintle wires. The helices are of oval shape with heads at the winding arcs widened in the longitudinal direction of the helices. The width of the heads at the winding arcs is about one and one half to two times the diameter of the wire form which the helices are wound. The helix wire can also have a kidney-, U-or V- shaped cross section with a concave and a a convex side and can be wound so that the concave side faces inwardly or outwardly. The helices are flattened in the region of the winding arcs. Flattening is effected during thermosetting.</p> |
