DIRECT-ACTING EXPANSION MECHANISM AND ROBOT ARM MECHANISM

摘要

PROBLEM TO BE SOLVED: To provide a direct-acting expansion mechanism corresponding to its application and the like.SOLUTION: There are provided a plurality of first connecting blocks 23 connected in a foldable manner; and a plurality of second connecting blocks 22 connected in a foldable manner. The second connecting block 22 at the extremity end of the plurality of second connecting blocks 22 is connected to the extremity end first connecting block 23 of the plurality of first connecting blocks 23. The first and second connecting blocks 23, 22 are connected to each other at their rear surfaces to cause their bending actions to be restricted to form a column-like body. The column-like body is released through separation of the first and second connecting blocks 23, 22. The first connecting blocks 23 are connected to the second connecting blocks 22 to form a column-like body. There is provided an ejection part 30 for supporting the column body. The first connecting blocks 23 entirely form a cylindrical shape with a substantial circular section or substantial elliptical section together with the second connecting blocks 22.SELECTED DRAWING: Figure 1