Cushioning material for packaging and packaging matter
The invention provides a cushioning material for packaging that is suitable for packaging an electronic apparatus, an optical apparatus or an electronic apparatus having an optical system mounted therein, and a package that uses the cushioning material for packaging. In the invention, a lower spacer formed of corrugated cardboard, a lower pad, a projector as an article to be packaged that is wrapped in an anti-static bag having electrical conductivity, an upper pad and an upper spacer formed of a corrugated cardboard can be stacked inside a corrugated cardboard box. The upper and lower pads are, respectively, provided with a plurality of upper pad side hollow convex portions and a plurality of lower pad side hollow convex portions protruding in such a fashion as to encompass an accommodation space for the projector. Upper and lower side reinforcing plate portions of the upper and lower spacers, respectively, enter deep into these convex portions.
1. A cushioning material for packaging, comprising:
an upper pad and a lower pad, each having upper pad side hollow convex portions and lower-pad-side hollow convex portions protruding such as to encompass an accommodation space for an article to be packaged,
said cushioning material further comprising an upper spacer having upper side solid reinforcing plate portions that enter substantially completely into said upper pad side hollow convex portions when said upper spacer is disposed over said upper pad.
2. A cushioning material for packaging, comprising:
an upper pad and a lower pad, each having upper-pad-side hollow convex portions and lower-pad-side hollow convex portions protruding such as to encompass an accommodation space for an article to be packaged,
said cushioning material further comprising a lower spacer having lower side solid reinforcing plate portions that enter—substantially completely into said lower-pad-side hollow convex portions when said lower spacer is disposed under said lower pad.
3. A cushioning material for packaging, comprising:
an upper pad and a lower pad, each having upper-pad-side hollow convex portions and lower-pad-side hollow convex portions protruding such as to encompass an accommodation space for an article to be packaged,
said cushioning material further comprising a lower spacer having lower side solid reinforcing plate portions that enter deep into said lower-pad-side hollow convex portions when said lower spacer is disposed under said lower pad, and an upper spacer having upper side reinforcing plate portions that enter deep into said upper-pad-side hollow convex portions when said upper spacer is disposed over said upper pad.
4. A cushioning material for packaging according to claim 1 , both of said upper pad and said lower pad being formed of sheet-like plastic foam.
5. A cushioning material for packaging according to claim 1 , both of said upper pad and said lower pad being formed of pulp mold.
6. A cushioning material for packaging according to claim 1 , said lower pad having a flange portion that extends from a lower edge of a sidewall portion positioned on an outer peripheral side,
said flange portion being folded back inside said sidewall portion to double said sidewall portion, thereby forming a sidewall reinforcing portion.
7. A cushioning material for packaging according to claim 6 , reinforcing ribs being formed on said flange portion.
8. A package according to claim 1 , an article to be packaged being at least one of an electronic apparatus, an electronic apparatus having an optical system mounted therein and an optical apparatus.
9. A package obtained by packaging an article to be packaged in a corrugated cardboard box using said cushioning material for packaging according to claim 1 .