JP4318101B2 - Folding container - Google Patents

Description

  The present invention, for example, various agricultural products such as harvested potatoes, onions, carrots, shellfish and seaweed collected in the field of fishery, cut twigs in the field of forestry, parts produced in a manufacturing plant, etc. The present invention relates to a folding container used for storing and transporting parts and blocks.

Conventionally, when various agricultural products such as potatoes, onions, and carrots are harvested, collected, and transported, a container whose size is determined according to industry specifications is used according to the agricultural products to be stored. There exists a thing of the following patent document 1 as this kind of container. The container is a foldable container that can fold the vertical panels 2, 3, 4 provided on the four circumferences to the upper part of the floor 5, and has the following configuration. The front panel 2 is positioned on pins 6 and 6 provided at both ends of the front surface of the floor 5 and is positioned by pins 7 and 7 that are movable in the axial direction, and is assembled in contact with the floor 5. The rear panel 3 is positioned by the pins 7 and 7 of the columns 6 and 6 at both ends of the rear surface of the floor and is assembled in contact with the floor 5. The left and right side panels 4, 4 are assembled by being rotatably attached to pins 8, 8 fixed to the four columns 6, 6 by welding means.
Japanese Patent No. 2992279

  The above-described prior art containers can be stacked in a state where the four panels are folded inward, but the four panels 2, 3, 4 can be expanded outward to a substantially horizontal state. It is impossible to remove the left and right side panels 4 and 4 from the floor 5 and disassemble them. For this reason, when the side panel 4 is damaged, the disadvantage is that the damaged side panel 4 must be replaced after the pins 8 and 8 fixed to the column 6 by welding are once disassembled. However, there is a disadvantage that it is impossible and must be performed at the factory, and that all the side panels 2, 3, and 4 cannot be easily disassembled for cleaning and maintenance. Furthermore, when carrying out the work of storing agricultural products in the container, the four side panels 2, 3, 4 stand up at a predetermined height, so that the operator forcibly extends his arm every time the storage operation is performed. Or has to stand up frequently, which puts a heavy burden on the body, causing stiff shoulders and low back pain.

  The present invention has been made in view of the shortcomings of the prior art, and at least one side panel can be easily folded or separated on the pallet part, and the operator can stand still. Providing a foldable container that can be folded and separated, has excellent workability, has a low physical burden, and has a simpler structure than the prior art, and can reduce production costs. For the purpose.

  The means of the present invention configured to solve the above-described problem is a pallet part having a substantially rectangular plane, four support columns erected at the four corners of the pallet part, and rotating by pivotally supporting the support elements. A foldable container comprising four side panels standing upright and connecting means for connecting the four side panels in a frame shape so as to be detachable. A pair of support columns supporting at least one of the opening side panels is provided with a locking pin projecting inward in the lateral direction, and the lower half of the lower surface of the lower frame material is inclined upward on the opening side panel. An engaging portion for removably engaging the locking pin is provided at the lower front corner of the pair of side frame members, and the opening side panel is provided on the frame member of the pallet portion. A stopper that abuts against the inclined surface.

  And the said engaging part is good to make it the inverted L-shaped notch hole which consists of the pin insertion groove | channel formed in the front surface in the front corner corner of the lower end side of the said side frame material, and the pin latching groove | channel formed in the horizontal surface. .

  Further, the four side panels may be pivotally supported on the column so as to be rotatable in a range of about 180 degrees inward and outward.

  Further, the four side panels may be provided so as to be detachable from the support column.

Since the present invention is configured as described in detail above, the following effects can be obtained.
(1) Since the opening side panel is erected on the pallet part by locking the engaging part to the locking pin, it can be easily separated from the pallet part or folded, Since it can be separated and folded while standing, it is excellent in workability and has no physical burden.
(2) Since there is no movable part in the configuration and the configuration members are simple configurations less than the prior art, there is no failure and excellent durability, and the production cost can be reduced.
(3) Since the four side panels can be rotated in the range of about 180 degrees inward and outward, the efficiency of the storage work can be improved by opening any side panel according to the situation at the work site. Can be improved.
(4) Since the four side panels can be attached to and detached from the support column, the damaged side panel can be easily replaced at the work site, and can be easily disassembled and cleaned.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. In the figure, 1 indicates a pallet portion having a substantially rectangular plane. 2 is a pallet main body constituting the pallet portion 1, and the pallet main body 2 has a long front frame 2A made of a rectangular steel pipe flat steel material, and a height obtained by adding the thickness of the front side panel 11 described later to the front frame 2A. A horizontally long rectangular frame comprising a rear frame 2B made of a rectangular steel tube and a pair of left and right horizontal frames 2C, 2C made of a rectangular steel tube having a height approximately double the thickness of the front side panel 11 on the front frame 2A. , And receiving members 2D, 2D,... Made of a plurality of flat steel materials between the left and right horizontal frames 2C, 2C.

  Reference numeral 3 denotes a support that forms the pallet portion 1 by being integrally provided on the lower side of the pallet body 2. The support body 3 is formed of a rectangular steel tube whose longitudinal ends are closed, a pair of outer leg members 3A and 3A fixed to the lower surfaces of the left and right horizontal frames 2C and 2C, and the pallet body 2 in parallel with the outer leg member 3A. And a pair of front and rear connecting members 3C and 3C made of flat steel plates connected to the outer leg portions 3A and 3A and the inner leg members 3B and 3, respectively. The spaces A and A between the outer leg member 3A and the inner leg member 3B are spaces in which a fork can be inserted when lifted by a forklift.

  Reference numerals 4 and 4 denote a pair of front struts made of a steel material standing upright at both front corners of the pallet portion 1 having the above-described configuration. The front struts 4 are formed in a substantially U-shaped cross section from a pair of opposing pieces 4A, 4B and a connecting piece 4C, and are formed on the outer leg 3A and the lateral frame 2C with the open surface facing forward. It is fixed by welding means.

  Reference numerals 5 and 5 are locking pins provided laterally on the pair of front struts 4. Each locking pin 5 is inserted into the inner facing piece 4A, and the proximal end is fixed to the outer facing piece 4B. 5A protrudes inward in the lateral direction from the inner facing piece 4A.

  Reference numerals 6 and 6 denote a pair of rear struts erected at the rear corners of the pallet unit 1. Each of the rear struts 6 is also formed in a substantially U-shaped cross section from the inner facing piece 6A, the outer facing piece 6B, and the connecting piece 6C, and the outer leg 3A and the horizontal frame 2C with the open surface facing rearward. Are fixed by welding means. The front struts 4 and 4 and the rear struts 6 and 6 are configured so that containers can be stacked horizontally by setting the upper ends to the same height.

  7 and 7 are rear movable pins provided on the pair of rear struts 6 and 6 so as to be slidable in the lateral direction, and the rear movable pins 7 are inserted into the opposing pieces 6A and 6B of the rear strut 6, The tip side protrudes inward in the lateral direction from the inner facing piece 6A. Reference numerals 8 and 8 are laterally movable pins provided on the front strut 4 and the rear strut 6 so as to be slidable in the lateral direction. The laterally movable pins 8 are inserted into the connecting pieces 4C and 6C of the struts 4 and 6, respectively. Yes, the tip end side protrudes inward in the lateral direction from the connecting pieces 4C, 6C.

Reference numeral 11 denotes an opening side panel pivotally supported between the pair of front struts 4 and 4 via the pair of locking pins 5 and 5 so as to be detachable. The opening side panel 11 is formed in a horizontally-long rectangular frame from a lower frame member 11A, an upper frame member 11B, and a pair of left and right side frame members 11C, 11C, and between the upper and lower frame members 11A, 11B. Three inner vertical members 11D, 11D, and 11D are connected to each other. Then, the lower frame member 11A is is formed on the inverted "V" shape comprising a rear half upward inclined surface 11A ₂ of the horizontal plane 11A ₁ of the first half side underside.

  Reference numeral 12 denotes an engaging portion for connecting the opening side panel 11 to the locking pins 5 and 5 so as to be pivotable and detachable. The engaging portion 12 is formed in a lateral L-shaped hole in which the front corner of the lower end side of each side frame member 11C of the opening side panel 11 is notched in the lateral direction, and the front notch is formed in the pin entrance / exit groove 12A. The lateral cutout is a pin locking groove 12B.

  Reference numeral 13 denotes a rear side panel which is provided on a pair of rear struts 6, 6 so as to be opposed to the opening side panel 11 so as to be rotatable and detachable via rear movable pins 7, 7. The rear side panel 13 is formed from a lower frame member 13A, an upper frame member 13B, and a pair of side frame members 13C, 13C in the same manner as the opening side panel 11, and is formed into a horizontally long rectangular frame. A pin hole (not shown) into which the movable pin 7 is inserted is formed in the outer surface of the side frame member 13C.

  Reference numerals 14 and 14 denote a pair of left and right lateral side panels pivotally supported between the front strut 4 and the rear strut 6. Each lateral side panel 14 includes a lower frame member 14A, an upper frame member 14B, and a pair of left and right sides. The side frame members 14C and 14C and the vertical member 14D connected between the upper and lower frame members 14B and 14A are formed into a substantially square frame, and are movable on the lower ends of the side frame members 14C and 14C. A pin hole (not shown) into which the pins 8 and 8 are inserted is formed.

  Further, 15 is a connecting means for connecting the adjacent opening side panel 11 and the lateral side panels 14 and 14, and the rear side panel 13 and the lateral side panels 14 and 14 to form a four-sided frame. The connecting means 15 has an engaging claw portion, an engaging lever 16 pivotally attached to the upper end side of the side frame member 14C of each lateral side panel 14 and an opening side panel 11 (rear side panel 13). The side frame member 11C (13C) is formed at the upper end side and is formed with a locking hole 17 through which the engaging claw portion enters and exits (see FIG. 1). Then, by operating the engaging lever 16 to rotate in a predetermined direction, the opening side panel 11 and the lateral side panel 14 and the rear side panel 13 and the lateral side panel 14 are connected and released. Can be made.

Further, 18 and 18 denote stoppers which are fixed to the upper surface of the front frame 2A of the pallet body 2 while being spaced apart from each other in the lateral direction. Respective stopper 18 is made of a round bar steel material was cut into a length of appropriate Yes and fixed by welding means in a position facing the upstream inclined surface 11A ₂ of the opening for the side panels 11, the opening for the side panels When 11 retreats inward, it abuts against the inclined surface 11A and prevents the panel 11 from retreating further.

  Reference numerals 19 and 19 denote a pair of stoppers protruding upward from the upper frame member 14B of each lateral side panel 14, and each stopper 19 is formed on the outer leg 3A of the container to be stacked. By fitting in a certain engagement hole (not shown), a heavy container storing the contents can be stacked in a vertical state to ensure stability.

  A fastening rod 20 is fixed to the opening side panel 11, the rear side panel 13 and the lateral side panel 14 in a frame shape, and a synthetic resin net is attached to the fastening rod 20. 11, 13, and 14 are entirely covered from the inside so as to prevent damage to the contents during transportation and storage. This configuration is a known technique and is an essential part of the present invention. However, since the figure becomes complicated, the illustration and description thereof are omitted.

The folding container according to the present embodiment has the above-described configuration. Next, the operation will be described with reference to FIGS. FIG. 7 shows a state in which the opening side panel 11 is erected on the pallet unit 1, and the pallet body 2 is mounted on the pallet body 2 in a state where the engaging portions 12 are fitted to the locking pins 5 provided on the front columns 4, 4. The frame body is configured by being erected to be connected to the lateral side panel 14 by the connecting means 15 on the upper side.

In this state, when a load F is applied to the opening side panel 11 from the inside to the outside due to stored items or the like, the locking pin 5 restricts the displacement of the side frame member 11C in the outward direction. On the other hand, when an external force F acts on the opening side panel 11 from the outside to the inside, as shown in FIG. 8, the opening side panel 11 that has been slightly retracted has the upward inclined surface 11 </ _b > A ₂ against the stopper 18. By contacting, the frame can be kept in shape because further retreat is prevented.

  9 and 10 show a procedure for folding the opening side panel 11, and the opening side panel 11 temporarily disengages the engaging portion 12 from the locking pin 5 and lays it sideways. The opening side panel 11 can be folded by fitting it to the engaging pin 5 and turning it over the pallet part 1. And since these operations can be performed while standing, there is little physical burden on the operator, and there is no need to move the pins etc., so it is easy to open the side panel in a short time. 11 can be folded.

  Further, in the present embodiment, the rear side panel 13 and the lateral side panel 14 are expanded within a range of about 180 degrees inward and outward with the movable pins 7 and 8 as fulcrums by releasing the connecting means 15. be able to. Further, by moving the movable pins 7 and 8 forward and backward, the rear side panel 13 can be detached from between the columns 6 and 6 and the lateral side panel 14 can be separated from between the columns 4 and 6.

As described above, the opening side panel 11, the rear side panel 13 and the lateral side panel 14 are rotatable and separable. Therefore, it is possible to replace only a damaged panel or to efficiently perform disassembly and cleaning. it can. Therefore, even if one of the side panels 11, 13, and 14 is damaged and needs to be replaced, it is not necessary to take the container back to the factory and perform the replacement work, and the replacement work can be performed in a short time at the storage site. This is possible, and the influence of hindering the original storage operation can be minimized.

  In the present embodiment, at least one side panel 11 (13, 14) of the four side panels is divided into a lower panel body and an upper panel body and can be rotated by a hinge. It is possible to connect the upper panel body so that it can be folded in two.

  By configuring in this way, when performing the work of storing the harvested product in the container, by initially folding the upper panel body in two at the beginning of the work, the operator can greatly raise the arm, Since the storing operation can be performed with an easy movement that does not frequently stand up, the physical burden on the operator can be greatly reduced, and the working efficiency can be increased. When the harvest is stored up to the upper end of the lower panel body, the upper panel body is raised and connected to the adjacent side panel by the connecting means 15 so that the harvest can be stored up to the upper end of the container.

FIG. 1 is a perspective view showing the overall configuration of a folding container according to an embodiment of the present invention. It is a perspective view of a pallet part and a support | pillar. It is the fragmentary perspective view which provided the front support | pillar in the pallet part. It is the elements on larger scale of the side panel for opening. It is the elements on larger scale which show the side panel for opening from back. It is principal part explanatory drawing which shows the state which engaged the side panel for an opening | release with the latching pin from the front. It is explanatory drawing which shows the state which engaged the standing side panel for the latching pin, and stood up. It is explanatory drawing which shows the state which the side panel for opening contact | abutted to the stopper. It is explanatory drawing which shows the state which made the side panel for an open | release release from the latching pin. It is explanatory drawing of the state which inverted the side panel for opening on the pallet part. It is a front view of the state which folded the foldable container.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Pallet part 4 Front support | pillar 5 Locking pin 11 Side panel 11A for opening ₂ Inclined surface 12 Engaging part 13, 14 Side panel 15 Connecting means 18 Stopper

Claims (4)

  A substantially rectangular pallet section, four support columns erected at the four corners of the pallet part, four side panels erected so as to be pivotable by being supported by the support columns, A foldable container comprising a connecting means for detachably connecting the side panels in a frame shape, and a pair of support columns supporting at least one opening side panel among the four side panels. Has a locking pin projecting inward in the lateral direction, and the opening side panel is formed with the lower half of the lower surface of the lower frame member as an upward inclined surface, and the lower front corner of the pair of side frame members The folding pin is provided with an engaging portion for removably fitting the stopper pin, and the frame material of the pallet portion is provided with a stopper that comes into contact with the upward inclined surface of the opening side panel. Type container.   The engaging portion is a notch hole formed by a pin access groove formed on the front surface at the front corner of the lower end side of the side frame member constituting the opening side panel and a pin locking groove formed on the lateral surface. The folding container according to claim 1.   The foldable container according to claim 1, wherein the four side panels are pivotally supported on the support column in a range of about 180 degrees inward and outward.   The folding container according to claim 1, wherein the four side panels are detachably provided on the support column.

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