LINEAR-MOTION EXTENDING/CONTRACTING MECHANISM AND ROBOT ARM MECHANISM

摘要

A linear extension and retraction mechanism includes a plurality of first connection pieces (23) coupled together bendably; and a plurality of second connection pieces (22) coupled together bendably, wherein back faces of the first connection pieces (23) and back faces of the second connection pieces (22) are joined together, thereby generally forming a columnar body by constraining bending, and the columnar body is relaxed when the first and second connection pieces (23, 22) are separated from each other, the linear extension and retraction mechanism further including an ejection section (30) adapted to support the columnar body.