| 摘要 |
PROBLEM TO BE SOLVED: To provide a backpack capable of carrying different sizes of objects in a state where the objects are put into an expandable compartment. SOLUTION: The backpack (10) includes: a backpack body (12); the expandable compartment configured for housing the object (14), the compartment including first and second areas (20), (22) cooperating with each other; the first area being connected to the backpack body, the first area having two end portions, each end portion comprising a protrusion, the second area comprising three regions (30, 32, 34) configured to cooperate with each other; and a cord (26) capable of cooperating with the second area for facilitating the cooperation of the three regions in the backpack body. A user is prevented from viewing the first area when the compartment is in an unexpanded configuration. COPYRIGHT: (C)2007,JPO&INPIT
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