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

Claim 2:
3. The foldable lightweight roll container of claim 2, wherein the door lock member (106) is configured to include:
left and right coupling pieces (1061, 1062) which couple each of both vertical parts of right and left ends corresponding to each other to an upper part of the fastening groove portion (111) when closing the front surface of the load frame (100) with the left and right door members (103, 103′), left and right ring portions (1063, 1064) combined to be vertically communicated when extending to the front end of each of the left and right coupling pieces (1061, 1062) in a pipe form so that inner and outer diameters are equal to each other and closing the left and right door members (103, 103′), and a lock pin (1065) having plane cross sections which are symmetric with each other in the form of a hook, and coupled to left and right ring portions (1063, 1064) combined to be communicated vertically from an upper side to prevent the left and right ring portions (1063, 1064) from being separated and lock the left and right door members (103, 103′) not to be arbitrarily opened.