| 摘要 |
The invention relates to a device for storing and carrying content, which can be expanded to provide additional storing space therein, comprising: at least one expanding wall such that the boundary of the device occupies a smaller volume before it is expanded, than after its expansion; restricting elements positioned inside said walls; an expansion mechanism; and carrying-aid accessories; wherein said restricting elements prevent uneven inflation along said walls and against excessive inflation of said walls. |
