BELLOWS MECHANISM AND SUBSTRATE CUTTING APPARATUS AND DEVICE COMPRISING THE BELLOWS MECHANISM

摘要

Provided is a bellows box mechanism excellent in durability against repeated stretching and shrinking. A first convex folding line R1 and a second convex folding line R2 continuing in a straight line via a refractive point a to the first convex folding line R1 and a third convex folding line R2 connecting the adjacent convex folding lines R1, A first concave folding line V1 formed in parallel between the convex folding line R3 and the first convex folding line R1 and connected to the middle point c of the third convex folding line R3, The second concave folding line V2 formed parallel to the convex folding line R2 and the middle point c of the third concave folding line V2 and the inner end b of the second concave folding line V2, And a third concave folding line V3 formed across the inner end b of the refraction point a and the second concave folding line V2, The folded portion 12 surrounded by the third and fourth convex folding lines R3 and R4 and the third concave folding line V3 is pressed against the inside of the second face corrugated box portion 10S And the length of the fourth convex folding line R4 is greater than the length of the third convex folding line R3 Settings are.