| 摘要 |
PROBLEM TO BE SOLVED: To provide a knapsack which is made soft and is easy to use and in which a gore is made elastic and further lightening is possible by putting a frame into the main gore portion of a knapsack body and in which it is possible to prevent the main gore portion from becoming limp without putting the frame. SOLUTION: The base part of protruding portions 6 and 7 is sewn by forming the protruding portions 6 and 7 in a longitudinal direction in a dart form through picking the materials of main gore portions 3 and 4 without containing a frame in the right and left main gore portions 3 and 4 in a knapsack body 19. |
