Title:
BACK PAD FOR KNAPSACK, AND KNAPSACK
Document Type and Number:
Japanese Patent JP2016146936
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a back pad for a knapsack, the back pad capable of preventing the lower edge from touching the waist of a user, and also to provide a knapsack having the back pad.SOLUTION: A back pad 1 of a knapsack includes a back plate 4 and a cushioning material 6. The cushion material 6 contains first, second, and third foamed materials 6a, 6b, 6c, of which the first foamed material 6a is partially arranged on the back plate 4 in each of the central part 4c and the lower part 4a. The second foamed material 6b has a higher expansion ratio than the first foamed material 6a, and is arranged in a manner partially superimposed on the back plate 4 and covering the first foamed material 6a, in each of the central part 4c and the lower part 4b. The third foamed material 6c has a higher expansion ratio than the second foamed material 6b, and is arranged in a manner covering the second foamed material 6b.SELECTED DRAWING: Figure 2
Inventors:
KASHIMA HIROTO
Application Number:
JP2015025327A
Publication Date:
August 18, 2016
Filing Date:
February 12, 2015
Export Citation:
Assignee:
SEIBAN:KK
International Classes:
A45F3/04; A45F3/02
Domestic Patent References:
| JP2007295968A | 2007-11-15 | |||
| JP2011189075A | 2011-09-29 | |||
| JP2004357893A | 2004-12-24 | |||
| JP2000060620A | 2000-02-29 |
Foreign References:
| US20060208024A1 | 2006-09-21 |
Attorney, Agent or Firm:
Fukami patent office