CONNECTION SURFACE FOR A STRUCTURAL UNIT

摘要

A connection surface that is disposed on at least a portion of a face of a structural unit comprises a first convex surface and a first concave surface arranged substantially along a first line. The shape of the first concave surface is complementary to the shape of the first convex surface. A second convex surface and a second concave surface are arranged substantially along a second line that is substantially parallel to the first line. The shape of the second concave surface is complementary to the shape of the second convex surface. The concave-convex order of the second line is reversed relative to the first line, such that the second convex surface corresponds with the first concave surface and the second concave surface corresponds with the first convex surface.

主权项

1. A connection surface disposed on a face of a structural unit, the connection surface comprising:
a first convex surface and a first concave surface, the first convex surface and first concave surface being arranged substantially along a first line, the shape of the first concave surface being complementary to the shape of the first convex surface; and a second convex surface and a second concave surface, the second convex surface and second concave surface being arranged substantially along a second line that is substantially parallel to the first line, the shape of the second concave surface being complementary to the shape of the second convex surface; wherein a concave-convex order of the second line is reversed relative to the first line such that the second convex surface corresponds to the first concave surface and the second concave surface corresponds to the first convex surface.