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

Claim 15:
16. The foldable lightweight roll container of claim 14, wherein the fixation member (108) is configured to include:
a movement piece (1181) coupled to the side coupling groove portion (122) having an open rectangle-shaped form with open edges bent on the upper side of the inner surface of each lower border portion (120) of the left and right frame members (102, 102′) to be movable forward and backward;
a fixation piece (1182) horizontally extended inward in a middle portion of the inner surface of the movement piece;
first and second spiral holes (1183, 1184) vertically perforated at a front and rear portions on the same line of the fixation piece; and
a support piece (1185) extended downward vertically on an inner end of the fixation piece (1182),
a fixation piece portion (1281) which is formed so that a front and rear width correspond to an interval between the first and second spiral holes (1183, 1184), and having upper and lower ends coupled to the settlement groove portion (1421) formed at upper and lower portions of the outer surfaces of the left and right border materials among four front and rear and left and right border materials (142) in which the side cross section of the lower plate member (103);
a fixation bolt attaching the fixation piece portion (1281) to the outer surfaces of the left and right border materials by tightening a spiral hole perorated in the fixation piece portion (1281) and a spiral hole perforated on the outer surface between upper and lower settlement groove portions to correspond thereto;
a support piece (1283) horizontally extended to the outer side on the upper end of the outer surface of the fixation piece portion (1281) and formed to support the lower end of the support piece (1185) on the top surface; and
a step piece (1284) extended upward vertically on the outer end of the support piece and formed to support the upper end surface on the bottom surface of the fixation piece where the first and second spiral holes (1183, 1184) perforated in front and rear portions on the same line while the upper end surface crosses the lower end of the support piece to the outside.