Patent ID: 11891100
Assignee: YEONG HWAN PARK
Field: Transport (Mechanical engineering)
Classification: CPC B  Y | IPC B

Claim 16:
17. The foldable lightweight roll container of claim 14, wherein the safe member (109) is configured to include:
the border portion (110) having a flat U-shaped form in which the rear frame member (101) and the lower ends of both vertical portions of the left and right frame members (102, 102′) are extended to be close to the ground surface;
a safe bar (1091) attached to horizontally cross the inner surfaces of both vertical portions by fixing both ends to the inner surfaces of the lower ends of the both vertical portions, respectively;
a buffer pad (1092) is made of an elastic material such as rubber or urethane and fastened to the safe bar in a form to surround the outer surface of the safe bar (1091), the safe bar (1091) includes a first fastening groove (1911) dented on the outer portion of the top surface, a screw tightening hole (1192) which is protruded in a C-shaped form in the middle of the inner portion of the bottom surface and tightening the screws to both end portions when fixing both ends of the safe bar to the inner surfaces of the lower ends of both vertical portions;
a second fastening groove (1193) on the bottom surface, and has the side cross section with a pipe form; and
a buffer pad (1092) includes an upper fastening portion (1291) which has a vertical length corresponding to a vertical width of the outer surface of the safe bar (1091), and is bent and extended in two stages inward on the upper end and has an end portion fastened to the first fastening groove (1191) and a lower fastening portion (1292) bent and extended in two stages inward on the lower end and coupled to an outer end portion of the second fastening groove (1193).