BUFFER

摘要

A buffer, wherein at least one rectangular opening part passed through in a thickness direction, projected parts obtained by cutting the polyolefin foam plate in a trapezoidal shape coming into contact with the end sides of the opening part, and hinge parts obtained by leaving uncut only the contact sides of the end sides of the opening part with the trapezoidal shapes of the polyolefin sheet are provided in a buffer plate formed of a polyolefin foam plate of 15 to 100 mm thick and a polyolefin sheet of 5 mm thick or less stacked on each other, and the projected parts are raised onto the sheet surface of the buffer plate by rotating the projected parts around the hinge parts to fit the buffer to a packaged body through fitting parts formed of hollow parts in the buffer plate formed after the projected parts are extracted and the opening part adjacent to the hollow parts, characterized in that at least one of the trapezoidal shapes comes into contact with the end sides of the opening part at the longer side center part thereof.