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Title:
CUSHIONING MATERIAL FOR COLUMNAR PRODUCT
Document Type and Number:
Japanese Patent JP2019147575
Kind Code:
A
Abstract:
To provide a cushioning material for a columnar product which can be made small when not used and can handle a columnar product safely without causing dust particles to adhere or damage to the columnar product when used in use.SOLUTION: A cushioning material for a columnar product is composed of a substrate formed in a bag shape by two film sheets each of which is thermally welded around its periphery. A large number of parallel partition welding parts 2f are formed on the substrate so that a sealing bag part 7 is formed in a shape of uneven shape when air is filled. And, a check valve sheet having a check valve 31 for allowing the inflow of air to each sealing bag part 7 continuously formed by the partition welding part 2f is interposed between the two film sheets to be welded, when air is introduced from an air supply port 5, a space part capable of accommodating a columnar product is formed between the opposed recessed parts of the respective sealing bag parts 7.SELECTED DRAWING: Figure 1

Inventors:
TONOGAKI TOMOYA
TSUBOI TAKUYA
SHIBAZAKI TSUYOSHI
Application Number:
JP2018032658A
Publication Date:
September 05, 2019
Filing Date:
February 27, 2018
Export Citation:
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Assignee:
SUN A KAKEN CO LTD
International Classes:
B65D81/05
Attorney, Agent or Firm:
水野 浩司
松下 亮



 
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