To provide a bag which is not easily deformed by the weight of an item stored inside.
The bag is provided with a gusset part 16 that is continuously arranged by both longitudinal edges on first side edges 30, 40, second side edges 32, 42 and bottom edges 34, 44 of front body panel 12 and a back body panel 14, between the front body panel 12 and the back body panel 14 formed of a hard plastic panel body. The gusset part 16 is formed of a soft plastic sheet and a reinforcing part 24 is formed by adhering an area between a protrusive folding line 56 and a front side receding folding line 58 and an area between the folding line 56 and a back side receding folding line 60. The folding line 56 side of the reinforcing part 24 is continuously arranged on the front body panel and the back body panel so that it sticks out toward the inside of the bag.
ARAI YUTAKA
ITO KIYOHIKO
| JPH0352518U | 1991-05-22 | |||
| JPS3720179Y1 | ||||
| JPS6174540A | 1986-04-16 | |||
| JPH0375117A | 1991-03-29 | |||
| JP2000025785A | 2000-01-25 |
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