| 摘要 |
PURPOSE: A multi-purpose backpack is provided to facilitate carrying of the backpack by integrating sub-backpacks with a main backpack. CONSTITUTION: A multi-purpose backpack comprises a main backpack(10), a frame(60), first and second sub-backpacks, and a secondary backpack(40). The frame is equipped with a pair of shoulder-straps and separably connected to the main backpack. The first and second sub-backpacks are fixed to one side of the main backpack. The secondary backpack is selectively combined with the main backpack, first sub-backpack, or second sub-backpack. |
