| 摘要 |
PURPOSE:To raise the decorativeness and workability of reversible step plates by a method in which upward and downward projections are formed on one end of a step plate to form a step plate block of a T-shaped cross section, and different patterns are formed on the flat front and back sides of the step plate in such a way as to enable the block to be used turned inside out. CONSTITUTION:A T-shaped step plate block 1 having projections 3 and 4 constituting a rising part on its one end is formed. Different patterns are provided for the front 5 and the back 8 of the flat part 2 of the step plate in such a way as to enable the step plate block to be used turned inside out. Steps having different patterns can thus be easily obtained. |
