| 摘要 |
PROBLEM TO BE SOLVED: To provide a cushion material which does not exert an influence on electronic parts and protects a glass base board. SOLUTION: This cushion material 1 is made of foamed beads of polyethylene or polypropylene having 5 or more foaming magnification and 1.08MPa or lower compressive strength to protect the corners of a glass base board. And it has a nearly L-shaped section. A plurality of insertion grooves 2, 2' for base boards, widen at the openings at every 0.5mm or larger distance are formed in the inside of the cushion material along the L-shape. And guide grooves 3 for fixing tools such as rubber and tapes are formed at the outside. A plurality of glass base boards are simultaneously packed by a set of these four pieces. |
