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

Claim 0:
1. A foldable lightweight roll container comprising:
a load frame (100) including
a rear frame member (101), the rear frame member (101) including
a border portion (110) formed in a substantially flat U-shaped form in which a fastening groove portion (111) having the form of an open rectangle shape with both ends bent to correspond to each other is formed on one surface,
a lower border portion (120) which includes an insertion groove (121) dented at an inner end of a upper surface with an opened upper end, a side coupling groove portion (122) dented at a direct lower portion of the insertion groove of the inner side in an open rectangle shape with open edges bent, a horizontal partition wall (123) partitioning an inner space up and down, and a first fastening port (124) which protrudes from a lower portion of the horizontal partition wall (123) in a C-shape so that a middle of the lower end is isolated to fasten screws to both ends, and is formed with a side section extruded in a pipe form and cut and used in a required length,
a horizontal supporter (130) which includes a second fastening hole (131) which protrudes from a lower portion of an upper surface in a C-shape so that a middle of the lower end is isolated to fasten screws to both ends and is formed with a side section extruded in a square pipe form and cut and used in a required length, and
a vertical supporter (140) which is extruded in a pipe form having a small diameter and having a lower end is supported on an internal bottom of the bottom surface of the lower border portion (120) on which a third coupling hole (125) is not perforated by penetrating a first coupling hole (112) and a second coupling hole (132) formed to vertically penetrate upper and lower surfaces of a horizontal portion of the border portion (110) and the horizontal support (130), and a third coupling hole (125) perforated on the top surface of the lower border portion (120) and an upper end is coupled to be positioned between internal upper and lower surfaces of the horizontal portion of the border portion (110),

left and right door members (103, 103′) including corresponding left and right frame members (102, 102′), and the lower border portion (120) having a side cross section with a rectangular pipe form, and attaching both ends to lower ends of inner surfaces of both vertical portions to cross the lower ends of both vertical portions of the lower border portion (110), and a lower plate member (104) including a lower plate material (141) installed to be vertically rotated by left and right lower plate hinge members (500) on a lower end portion of the inner surface of the rear frame member (101) and formed by a rectangular flat plate, front rear left and right border materials (142) surrounding and coupling four surfaces of the lower plate material (141), a fastening material fastening four corners of the border material (142), and a lower plate member including a plurality of support materials which couple both ends to inner surfaces of two border materials (142) corresponding thereto so as to cross the bottom surface of the lower plate material (141);

a left and a right lower plate support means (170) installed on a lower end portion of the inner surface of a lower border portion of each of the left and right frame members (102, 102′);
a left hinge member (200) rotating the left frame member (102) forward and backward within a range of 270 degrees by coupling and installing a rear end of the left frame member (102) on a left end of the rear frame member (101);
a right hinge member (300) rotating the right frame member (102′) forward and backward within a range of 270 degrees by coupling and installing a rear end of the right frame member (102′) on a right end of the rear frame member (101);
left and right door hinge members (400) rotating the left and right door members (130, 130′) forward and backward at a predetermined interval within a range of 270 degrees and elevated within a predetermined interval by coupling and installing the left and right ends of each of the left and right door members (130, 130′) to a front end of each of the left and right frame members (102, 102′);
a door support means installed in a middle portion of the front surface of the lower plate member (104) so as to support lower end portions of the right end and the left end corresponding to each other by closing and moving down the left and right door members (103, 103′); and
a caster (600) having a fixation plate portion (601) provided on a top surface of the caster (600), and coupled to and installed in each of the left and right end portions of the bottom surface of the rear frame member (101) and the lower border portion (120) of the left and right frame members (102, 102′).