| 摘要 |
PROBLEM TO BE SOLVED: To solve the problem of the use of cocoon cushion that an opening must be formed in order to take out a pupa, which involves damaging the opening due to the application of force to the opening with the result that the cushioning effect cannot be retained continuously and is therefore improper. SOLUTION: An opening (2) is formed in an end of a cocoon (1). An opening (4) is also formed in an end of another cocoon (3), which is slightly smaller than the cocoon (1). The cocoon (3) is accommodated in the cocoon (1) such that the opening (2) of the cocoon (1) is positioned opposite the opening (4) of the cocoon (3). Thus, the cushion using the combination of cocoons is obtained.
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