초록 ▼

An internal frame for supporting a wheeled suitcase comprises a base, a U-shaped frame mounted on top of the base and a modular central frame comprising an L-shaped head set having an L-shaped brace and all extension board connected to the front end of the L-shaped brace, two rectangular tubes slida

An internal frame for supporting a wheeled suitcase comprises a base, a U-shaped frame mounted on top of the base and a modular central frame comprising an L-shaped head set having an L-shaped brace and all extension board connected to the front end of the L-shaped brace, two rectangular tubes slidably connected to the lower end of the L-shaped brace, and two sockets connected to the lower ends of the two rectangular tubes. The upper end of the central frame is mounted to the top panel of the U-shaped frame and the lower end of the central frame is mounted to the rear end of the base so that the structure of the internal frame is greatly strengthened by the central frame. The modular central frame design not only can strengthen the structure of a wheeled suitcase, but is also flexible for change.

대표청구항 ▼

An internal frame for supporting a substantially rectangular wheeled suitcase having a flexible cover as its outer layer, the internal frame comprising: (1) a base; (2) a U-shaped frame having a top panel and two side panels, the lower ends of the two side panels vertically mounted to the left and r

An internal frame for supporting a substantially rectangular wheeled suitcase having a flexible cover as its outer layer, the internal frame comprising: (1) a base; (2) a U-shaped frame having a top panel and two side panels, the lower ends of the two side panels vertically mounted to the left and right sides of the base; and (3) a central frame comprising: (a) an L-shaped head set having a top panel and a rear panel, said rear panel further comprising two recesses on its lower end; and (b) two elongated parallel tubes vertically and slidably plugged in the two recesses of the L-shaped head set for undertaking pushing force only from the L-shaped head set; wherein the central frame is mounted between the base and the U-shaped frame by having the top panel of the L-shaped head set mounted to the top panel of the U-shaped frame and the lower ends of the two elongated tubes mounted to the rear end of the base.