JP4601443B2 - Folding container - Google Patents

Description

  The present invention comprises a bottom, an opposing long side wall hinged to the opposing long side bank portion of the bottom, and an opposing short side wall hinged to the opposing short side bank portion of the bottom. It relates to a folding container.

  Conventionally, a pair of outer holding projections are formed at predetermined intervals on both ends of the upper surface of the upper flange of the short side wall and on both ends of the upper surface of the upper flange of the long side wall, and the short side of the bottom is opposed to each other As an example, Patent Document 1 discloses a folding container in which a pair of legs are formed on a side-side back surface and a bottom-side back surface facing each other at a predetermined interval.

  When the folding containers assembled in a box shape are stacked, the legs formed on the back surface on the short side and the legs formed on the back surface on the long side of the folding container located above Between the outer holding projections formed on the upper end flange of the short side wall of the folding container located below, between the outer holding projections formed on the upper end flange of the long side wall, and in proximity to the outer holding projections. Configured to be located. By configuring in this way, the folding containers positioned above do not move in the horizontal direction with respect to the folding containers positioned below, and are stacked in a stable state.

JP 2001-335029 A

  In the conventional folding container described above, the opposing surfaces of the pair of outer holding protrusions formed on the upper and lower flanges of the long side wall and the short side wall, and the outer end surfaces of the bottom leg portions are formed as inclined surfaces. Therefore, the leg formed on the bottom of the folding container positioned above rides on the inclined surface of the outer holding projection of the folding container positioned below, and the folding container positioned above moves and tilts. Or, there was a problem of falling from the folding container located below.

  An object of the present invention is to solve the problems of conventional folding containers.

A bottom portion, one opposing side wall hinged to one opposing bank portion of the bottom portion, and another opposite side wall hinged to the other opposing bank portion having a height higher than the bank portion; in folding container having a central portion of the lower surface of the tall bank section, the outer surface substantially flush with an outer surface of the bank portion and the bottom wall and substantially parallel strip front plate, strip-shaped front plate From both ends of the bank, the vertical vertical side plate that is perpendicular to the lower surface of the bank portion and the belt-like front plate and connected to the bottom peripheral wall, and the lower end of the vertical vertical plate toward the lower surface of the bank portion A lower mating pedestal having a plurality of mating spaces, each of which is inclined in a direction away from each other, and is composed of an inclined side plate connected to the bottom peripheral wall and a plurality of partition plates substantially parallel to the vertical side plate. Is formed and also before Between the pair of upper pedestal portions formed at both ends of the upper surface of the high bank portion, a bottom side fitting protrusion that can be fitted in the fitting space formed in the lower fitting pedestal portion. The upper end flange located between the pedestal portions formed at both ends of the upper surface of the upper end flange of the other side wall hinged to the high bank portion, A fitting protrusion that can be fitted in a fitting space formed in the lower fitting base is provided.

  The lower mating pedestal is formed on the high bank, and the lower mating pedestal is fitted on the upper flange of the side wall hinged to the high bank. Since the mating space that can be mated is formed, when the folding containers stacked in a box shape are stacked with other folding containers, the horizontal movement of the folding containers located above is suppressed and stable. In this state, folding containers can be stacked.

  Since the bottom side fitting protrusion that can be fitted in the fitting space formed in the lower fitting base is provided on the high bank, the other folded container is used as the folded container. When the containers are stacked, the horizontal movement of the folding containers located above is suppressed, and the folding containers can be stacked in a stable state.

  Hereinafter, examples of the present invention will be described. However, the present invention is not limited to these examples as long as the gist of the present invention is not exceeded.

  As shown in FIG. 1, the folding container is hinged to the bottom 1, the long side wall 2 hinged to the long side bank 1 a of the bottom 1, and the short side bank 1 b of the bottom 1. In this embodiment, the height of the short side bank portion 1b is higher than the height of the long side bank portion 1a. Then, from the state assembled in the box shape shown in FIG. 1, first, the long side wall 2 in the substantially vertical state is first brought down so as to overlap the bottom portion 1, and then the short side wall 3 in the substantially vertical state is formed. Can be folded by being stacked on the long side wall 2 stacked on the bottom 1.

  Next, the bottom part 1 is demonstrated using FIG.2 and FIG.3.

  As described above, the bottom part 1 is formed with the long side bank part 1a formed along the long side of the bottom part 1 and the short side bank part 1b formed along the short side. The height of the side bank portion 1b is formed higher than the height of the long side bank portion 1a. Moreover, the short side fitting part 1d is formed in the short side bank part 1b by forming the short side upper base part 1c at both ends of the upper surface 1b1 of the short side bank part 1b. . Further, a pair of long side lower fitting bases 1e are formed at predetermined intervals in the vicinity of both ends of the lower surface 1a1 of the long side bank portion 1a. A short side lower fitting base portion 1f is formed at the center of the lower surface 1b2 of 1b. And as for said short side upper base part 1c, while upper surface 1c1 is formed as a flat surface, the surface 1c2 which a pair of short side upper base part 1c opposes is formed as an inclined surface.

  On the back surface of the bottom plate 1g of the bottom portion 1, there is a bottom peripheral wall 1h comprising an opposing long side wall 1h1 substantially parallel to the long side bank portion 1a and an opposing short side wall 1h2 substantially parallel to the short side bank portion 1b. Is formed. In addition, the long side side lower fitting base part 1e formed in the vicinity of both ends of the lower surface 1a1 of the long side bank part 1a is formed at substantially the same height as the bottom peripheral wall 1h.

  The short side lower fitting pedestal 1f formed at the center of the lower surface 1b2 of the short side bank 1b has an outer surface substantially flush with the outer surface 1b3 of the short side bank 1b, and the bottom peripheral wall A horizontally long belt-like front plate 1f1 substantially parallel to the short side wall 1h2 forming 1h, and from both ends of the belt-like front plate 1f1, the bottom peripheral wall is perpendicular to the lower surface 1b2 of the short side bank portion 1b and the belt-like front plate 1f1. Inclining in a direction away from each other toward the lower surface 1b2 of the short side bank portion 1b from the lower ends of the opposing vertical side plates 1f2 connected to the short side wall 1h2 of 1h and the pair of opposing vertical side plates 1f2 In addition, the inclined side plate 1f3 connected to the short side wall 1h2 of the bottom peripheral wall 1h and the vertical side plate 1f2 are substantially parallel to each other and formed between the vertical side plates 1f2, and between the belt-like front plate 1f1 and the bottom peripheral wall 1h. Two pieces that bridge the short side wall 1h2 It is formed from the drawing board 1f4 Prefecture. With this configuration, both ends of the back surface of the short side lower fitting base portion 1f are surrounded by the belt-like front plate 1f1, the vertical side plate 1f2, the partition plate 1f4, and the short side wall 1h2 of the bottom peripheral wall 1h. A fitting space A1 is formed.

  A pair of plate-like bottom side fitting protrusions 1i are provided at a predetermined interval between the pair of short side upper pedestals 1c formed at both ends of the upper surface 1b1 of the short side bank 1b. Is protruding. In the present embodiment, the bottom-side fitting protrusion 1i protrudes from the upper surface 1b1 of the short-side bank 1b located near the inner surface 1b4 of the short-side bank 1b. The inner surface 1i1 of 1i and the inner surface 1b4 of the short side bank portion 1b are configured to be substantially flush with each other, and the upper end 1i2 of the bottom side fitting protrusion 1i is formed on the short side upper pedestal portion 1c. It is configured not to exceed the upper surface 1c1. The bottom-side fitting protrusion 1i is formed in a substantially horizontally long rectangle, and the opposing side ends 1i3 of the pair of bottom-side fitting protrusions 1i are substantially perpendicular to the upper surface 1b1 of the short side bank portion 1b. Further, the side end 1i4 opposite to the side end 1i3, in other words, the side end 1i4 positioned on the short side upper pedestal portion 1c side is formed as an inclined surface. In this embodiment, an example is shown in which a pair of bottom side fitting protrusions 1i are formed at a predetermined interval.

  The interval between the vertical side plate 1f2 and the partition plate 1f4 constituting the fitting space A1 of the short side lower fitting base portion 1f formed in the short side bank portion 1b described above is the upper surface of the short side bank portion 1b described above. When the folded containers in the folded state are stacked, they are formed to have the same length as the bottom side fitting protrusion 1i formed on 1b1. Further, the bottom-side fitting protrusion 1i of the folding container located below is fitted.

  As shown in FIG. 4, the upper end flange 2 a of the long side wall 2 hinged to the long side bank portion 1 a of the bottom portion 1 is formed flat, and is formed at both end portions of the long side wall 2. Is formed with a known vertically long long side wall side engaging frame 2b, and an appropriate number of fitting protrusions 2b1 project from the long side wall side engaging frame 2b.

  As shown in FIG. 5, the short side wall 3 hinged to the short side bank portion 1b of the bottom portion 1 is formed with pedestal portions 3b at both ends of the upper surface of the upper end flange 3a of the short side wall 3. By doing so, the short side wall side fitting recessed part 3c is formed between the base parts 3b. In addition, the pedestal portion 3b has an upper surface 3b1 formed as a flat surface, and opposing surfaces 3b2 of the pair of pedestal portions 3b are formed as inclined surfaces. Furthermore, the inner surface of the short side wall 3 (the surface located on the inner side of the folding container when the folding container is assembled in a box shape) is the edge located on the 3 ′ side and the upper end located between the pedestal portions 3b On the upper surface of the flange 3 a, a plate-like short side wall-side fitting protrusion 3 d is provided with a predetermined interval, and the inner surface 3 d 1 of the short side wall-side fitting protrusion 3 d and the inner surface 3 of the short side wall 3 'Is configured to be substantially flush with each other. Furthermore, the short side fitting protrusion 3d is formed in the same shape as the bottom fitting protrusion 1i described above. That is, the short side wall fitting protrusion 3d is formed in a substantially horizontally long rectangle, and the opposite side ends 3d2 of the pair of short side wall fitting protrusions 3d are substantially perpendicular to the upper surface of the upper end flange 3a. Further, the side end 3d3 opposite to the side end 3d2 described above, in other words, the side end 3d3 located on the pedestal portion 3b side is formed as an inclined surface. The upper end 3d4 of the short side wall fitting protrusion 3d is configured not to exceed the upper surface 3b1 of the pedestal portion 3b.

  The length of the short side wall fitting protrusion 3d formed on the upper end flange 3a of the short side wall 3 described above is the short side side lower fitting base portion 1f formed on the short side bank portion 1b of the bottom portion 1 described above. Is formed substantially the same as the interval between the vertical side plate 1f2 and the partition plate 1f4 constituting the fitting space A1, and is formed on the short side lower fitting base portion 1f of the bottom portion 1 of the folding container located above. The short side wall-side fitting protrusion 3d formed on the upper end flange 3a of the short side wall 3 in a state of being assembled in a box shape located below is fitted in the joint space A1.

  The short side wall 3 is formed with a known vertically long short side wall side engaging frame portion 3e substantially perpendicular to the short side wall 3, and the short side wall side engaging frame portion 3e has the above described long side wall side engagement. A fitting recess 3e1 and a fitting hole 3e2 are formed in which the fitting protrusion 2b1 formed in the fitting frame 2b is fitted. The uppermost fitting recess 2e1 formed in the long side wall side engaging frame part 2b is inserted into the uppermost fitting recess part 3e1 formed in the short side wall side engaging frame part 3e. However, the fitting recess 3e1 may be used as the fitting hole 3e2. Furthermore, a known elastic tongue piece 3f having a free end positioned on the side of the short side wall side engaging frame 3e is formed at both ends of the short side wall 3, and the locking tongue 3f1 is formed on the elastic tongue piece 3f. Is formed.

  As shown in FIG. 1, a fitting recess 3h is formed in the lower end flange 3g of the short side wall 3 by expanding two locations of the lower end flange 3g upward. When assembling the folding container into a box shape, the pair of bottom side fitting protrusions 1i formed on the upper surface 1b1 of the short side bank portion 1b of the bottom portion 1 is fitted to the lower end flange 3g of the short side wall 3 The recess 3h is inserted, and is configured so as not to obstruct the vertical rotation of the short side wall 3.

  When the folding containers assembled in a box shape are stacked, the short side lower fitting pedestal portion 1f formed on the bottom 1 of the folding container located on the upper side is the short side wall of the folding container located below. 3 is fitted in the short side wall fitting recess 3c located between the pedestal portions 3b formed in the upper end flange 3a of the lower side 3 and is fitted in the short side wall side fitting formed on the upper surface of the upper end flange 3a of the folding container located below. The mating piece 3d is configured to be fitted in a fitting space A1 formed in the lower side lower fitting base portion 1f of the folding container positioned above. Therefore, when the upper folding container is about to move along the short side wall 3 of the lower folding container, the folding container is located near the partition plate 1f4 constituting the fitting space A1 of the upper folding container. Since the side end 3d2 of the short side wall side fitting projection piece 3d of the lower folding container located is in contact with the partition plate 1f4 in a line contact state, the folding container located above is folded below. There is no movement along the short side wall 3 of the container. Further, when the upper folding container is about to move along the long side wall 2 of the lower folding container, the bottom peripheral wall 1h constituting the fitting space A1 of the upper folding container is short. Since the short side wall side fitting protrusion 3d of the folding container located below, located near the side wall 1h2, abuts the short side wall 1h2 in a surface contact state, the folding container located above is It does not move along the long side wall 2 of the folding container located at the position. The long side lower fitting pedestal 1e formed on the bottom 1 of the folding container positioned above is configured to be placed on the upper end flange 2a of the long side wall 2 of the folding container positioned below. Yes.

  As described above, when folding containers assembled in a box shape are stacked, the folding container located above does not move horizontally with respect to the folding container located below. The folding containers assembled in a box shape can be stacked in a stable state.

  As described above, when the folding containers assembled in the box shape are stacked, the partition plate 1f4 that constitutes the fitting space A1 of the folding container positioned above is close to the partition plate 1f4, Since the side end 3d2 of the short side wall fitting protrusion 3d that is substantially perpendicular to the upper surface of the upper end flange 3a of the folding container located below is positioned, the short side wall extends beyond the partition plate 1f4. The side fitting protrusion 3d does not move, and therefore, the movement along the short side wall 3 of the folding container positioned below the folding container positioned above can be reliably suppressed. Further, in the vicinity of the short side wall 1h2 of the bottom peripheral wall 1h constituting the fitting space A1 of the folding container positioned above, the upper end flange 3a of the folding container positioned below is formed close to the short side wall 1h2. Since the inner surface 3d1 of the short side wall fitting protrusion 3d is positioned, the short side wall fitting protrusion 3d does not move beyond the short side wall 1h2. The movement along the long side wall 2 of the folding container located under the folding container located above can be reliably suppressed.

  When the folded containers in the folded state are stacked, the lower side fitting mating base part 1f formed on the bottom part 1 of the folding container located on the upper side causes the bottom part 1 of the folding container located on the lower side. The bottom portion 1 of the folding container located below is configured to be fitted into a short side fitting recess 1d formed between the short side upper pedestals 1c of the short side bank 1b to be configured. A pair of bottom side fitting protrusions 1i formed on the upper surface 1b1 of the short side bank portion 1b of the short side bank portion 1b is formed in a fitting space A1 formed on the short side lower fitting base portion 1f of the folding container located above. It is comprised so that it may be fitted. Therefore, when the folding container located on the upper side tries to move along the short side bank portion 1b of the bottom part 1 of the folding container located below, the fitting space A1 of the folding container located on the upper side is configured. The side edge 1i3, which is located near the partition plate 1f4 to be close, is substantially perpendicular to the upper surface 1b1 of the short side bank portion 1b of the bottom side fitting protrusion 1i of the folding container positioned below, and the partition plate 1f4. In addition, since the contact is made in a line contact state, the folding container positioned above does not move along the short side bank portion 1b of the bottom 1 of the folding container positioned below. Further, when the folding container located on the upper side tries to move along the long side bank portion 1a of the bottom part 1 of the folding container located below, the fitting space A1 of the folding container located on the upper side is configured. Of a pair of bottom side fitting protrusions 1i formed on the upper surface 1b1 of the short side bank portion 1b of the bottom portion 1 of the folding container located below, located close to the short side wall 1h2 of the bottom peripheral wall 1h. Since the inner surface 1i1 comes into contact with the short side wall 1h2 in a surface contact state, the folding container positioned above moves along the long side bank portion 1a of the bottom 1 of the folding container positioned below. There is no.

  As described above, when the folded containers in the folded state are stacked, the folding containers located on the upper side are the long side bank part 1a and the short side bank part of the bottom part 1 of the folding container located below. Since there is no horizontal movement along 1b, the folded containers in the folded state can be stacked in a stable state.

  As described above, when the folded containers in the folded state are stacked, the vicinity of the partition plate 1f4 that constitutes the fitting space A1 of the folding container located above is approached and located below. Since the side end 1i3 of the bottom side fitting protrusion 1i is positioned substantially perpendicular to the upper surface 1b1 of the short side bank portion 1b of the bottom portion 1 of the folding container, the partition plate 1f4 is passed, The bottom-side fitting protrusion 1i does not move, and therefore, the movement along the short side bank portion 1b of the folding container positioned below the folding container positioned above can be reliably suppressed. it can. Further, in the vicinity of the short side wall 1h2 of the bottom peripheral wall 1h constituting the fitting space A1 of the folding container positioned above, the short side of the bottom 1 of the folding container positioned close to the short side wall 1h2 is provided. Since the inner surface 1i1 of the bottom side fitting projection piece 1i formed on the bank portion 1b is positioned, the bottom side fitting projection piece 1i may move beyond the short side wall 1h2. Therefore, the movement along the long side bank portion 1a of the folding container positioned below the folding container positioned above can be reliably suppressed.

  When the folded container in the folded state is assembled into a box shape, the short side wall 3 in the substantially horizontal state is set up substantially vertically, and then the long side wall 2 in the substantially horizontal state is rotated vertically. However, when the long side wall side engaging frame portion 2b of the long side wall 2 approaches the short side wall side engaging frame portion 3e of the short side wall 3, the fitting protrusion 2b1 of the long side wall side engaging frame portion 2b is The engaging protrusion 3f of the elastic tongue piece 3f formed in the short side wall 3 is fitted into the fitting recess 3e1 or the fitting hole 3e2 of the short side wall engaging frame 3e. 3f1, the elastic tongue piece 3f is bent outwardly against the elastic force, and when the long side wall-side engagement frame portion 2b exceeds the locking projection 3f1 of the elastic tongue piece 3f, The elastic tongue piece 3f returns to its original position by its restoring force, and the long side wall side engaging frame portion 2b is connected to the short side wall side engaging frame portion 3e. It will be held between the locking projection 3f1 sex tongue 3f. In this way, the folded container in the folded state is assembled into a box shape, but even if the long side wall 3 tries to rotate inward in the state assembled in the box shape, The mating frame portion 2b comes into contact with the locking projection 3f1 of the elastic tongue 3f formed on the short side wall 3, so that the inward rotation of the long side wall 2 is prevented.

  In addition, in order to fold the folded container assembled in a box shape, the elastic tongue 3f formed on the short side wall 3 is elastically deformed outward as is well known, and the locking protrusion of the elastic tongue 3f 3 f 1 is removed from the long side wall-side engagement frame 2 b of the long side wall 2, and then the long side wall 2 is rotated inward to overlap the bottom 1. Next, the short side wall 3 is turned inward, and the short side wall 3 is overlapped with the long side wall 2 superimposed on the bottom portion 1 so as to be folded. The long side bank portion 1a of the bottom portion 1 has a fitting recess 1a2 into which the short side wall side engaging frame portion 3e of the short side wall 3 is fitted when the folding container is folded as described above. Is formed.

  In the embodiment described above, an example in which a pair of bottom side fitting protrusions 1i are formed at a predetermined interval on the upper surface 1b1 of the short side bank portion 1b of the bottom portion 1 is shown. The bottom part side fitting protrusion piece 1i can also be comprised as one continuous bottom part side fitting protrusion piece 1i. In this case, the partition plate 1f4 constituting the short side lower fitting base portion 1f formed on the lower surface 1b2 of the short side bank portion 1b of the bottom portion 1 is omitted and one bottom side fitting protrusion piece is omitted. The length of 1i is configured to be substantially the same as the interval between the pair of vertical side plates 1f2 constituting the short side lower fitting pedestal portion 1f, and one bottom side fitting protrusion 1i is a pair of vertical side plates 1f2. And the short side wall 1h2 forming the bottom peripheral wall 1h and the fitting space surrounded by the belt-like front plate 1f1. In addition, when one bottom side fitting protrusion piece 1i is formed in this way, one bottom part fitting protrusion piece 1i is inserted into the lower end flange 3g of the short side wall 3. The fitting recess 3h is formed.

  Similarly, two short side wall fitting protrusions 3d formed at a predetermined interval on the upper surface of the upper end flange 3a of the short side wall 3 are used as one continuous short side wall fitting protrusion 3d. It can also be configured.

  By forming the side end 1i4 located on the short side upper pedestal portion 1c side of the bottom side fitting protrusion 1i as an inclined surface, another folding container is placed on the folded folding container located below. When stacking, even if the bottom 1 of the folding container located above is slightly displaced along the short side bank portion 1b of the bottom 1 of the folding container located below, the shortness of the folding container located above is short. Since the vertical side plate 1f2 constituting the side-side lower fitting pedestal portion 1f is in contact with and guided by the side end 1i4 formed as the inclined surface of the bottom-side fitting projection piece 1i of the folding container located below, The bottom-side fitting protrusion 1i of the folding container positioned below is securely and quickly fitted into the fitting space A1 formed in the lower-side lower fitting base portion 1f of the folding container located at the bottom. It would be that the, Therefore, the workability of the stacking work can be improved.

  Similarly, the box located below is formed by forming the side end 3d3 located on the pedestal portion 3b side of the short side fitting protrusion 3d protruding from the upper end flange 3a of the short side wall 3 as an inclined surface. When stacking other folding containers on the folding container assembled in a mold, the bottom part 1 of the folding container located on the upper side is connected to the short side bank part 1b of the bottom part 1 of the folding container located below. The vertical side plate 1f2 constituting the lower side lower fitting base portion 1f of the folding container located on the upper side of the folding container is slightly inclined along the inclined surface of the short side wall fitting protrusion 3d of the folding container located on the lower side. Since it is abutted and guided to the side end 3d3 formed as a lower folding side located in the fitting space A1 formed in the short side lower fitting base portion 1f of the folding container located above. The short side wall side fitting protrusion 3d of Ntena is, become reliably and quickly fitted is possible, therefore, so that the workability of the stacking work can be improved.

  In addition, in the folded state with the height of the long side bank portion 1a of the bottom portion 1 being higher than the height of the short side bank portion 1b, the short side wall 3 is superimposed almost horizontally on the bottom portion 1 in a folded state. The long side wall 2 can also be configured to overlap the short side wall 3 in a substantially horizontal state. In this case, first, the short side wall 3 is erected substantially vertically, and then the long side wall 2 is erected substantially vertically, and the folding container is assembled into a box shape. In this embodiment, the long side wall side engaging frame portion 2 b is formed on the short side wall 3, and the short side wall side engaging frame portion 3 e and the elastic tongue piece 3 f are formed on the long side wall 2. Furthermore, the short side lower fitting base 1f and the short side fitting recess 1d formed on the short side bank 1b are formed on the long side 1a, and the long side bank 1a. The formed long side lower fitting base 1e, the fitting recess 1a2, and the like are formed on the short side bank 1b.

  FIG. 6 shows a state in which a folding container C2 (hereinafter referred to as a large folding container) larger than the folding container C1 is stacked on the folding container C1 described above. The large folding container C2 is also hinged to the bottom 10, the long side wall 20 hinged to the long side bank 10a of the bottom 10, and the short side bank 10b of the bottom 10 in the same manner as the folding container C1. It is composed of a short side wall 30. The long side bank portion 10a of the bottom portion 10 of the large folding container C2 is formed to be approximately double the length of the short side bank portion 1b of the bottom portion 1 of the folding container C1, and the bottom portion 10 of the large folding container C2. The short side bank portion 10b is formed to have substantially the same length as the long side bank portion 1a of the bottom portion 1 of the folding container C1. The length of the long side wall 20 of the large folding container C2 is formed to be approximately twice the length of the short side wall 3 of the folding container C1, and the length of the short side wall 30 of the large folding container C2 is folded. It is formed to have substantially the same length as the long side wall 2 of the container C1.

  Next, the bottom part 10 of the large foldable container C2 having substantially the same configuration as the bottom part 1 of the foldable container C1 described above will be described with reference to FIG.

  On the lower surface 10a1 of the long side bank portion 10a of the bottom portion 10, a short side lower fitting formed in the above-described folding container C1 with a fitting recess 10j formed in the central portion of the long side bank portion 10a interposed therebetween. A lower fitting base portion 10f substantially the same as the joint base portion 1f is formed. Further, on the back surface of the bottom plate 10g of the bottom portion 10, a bottom peripheral wall comprising an opposing long side wall 10h1 substantially parallel to the long side bank portion 10a and an opposing short side wall 10h2 substantially parallel to the short side bank portion 10b. 10h is formed.

  The lower fitting base portion 10f is a horizontally long belt-like front plate 10f1 that is substantially parallel to the long side wall 10h1 that forms the bottom peripheral wall 10h, similarly to the short side lower fitting base portion 1f formed in the folding container C1 described above. And from both ends of the belt-like front plate 10f1, the opposite vertical side plates 10f2 that are perpendicular to the lower surface 10a1 of the long-side bank portion 10a and the belt-like front plate 10f1 and are connected to the long-side wall 10h1 of the bottom peripheral wall 10h; Of the pair of opposing vertical side plates 10f2, from the lower end of the vertical side plate 10f2 located on the end side of the long side bank portion 10a toward the lower surface 10a1 of the long side bank portion 10a, the long side bank portion 10a An inclined side plate 10f3 that is inclined in the end side direction and is connected to the long side wall 10h1 of the bottom peripheral wall 10h, and substantially parallel to the vertical side plate 10f2 and formed between the vertical side plates 10f2. Together we are, of strip-shaped front plate 10f1 and the bottom wall 10h is formed from two sheets of partition plate 10f4 Metropolitan bridging the long side wall 10h1. With this configuration, the both ends of the back surface of the lower mating pedestal 10f are surrounded by the belt-like front plate 10f1, the vertical side plate 10f2, the partition plate 10f4, and the long side wall 10h1 of the bottom peripheral wall 10h. A space A10 is formed.

  As shown in FIG. 8, two folding containers C1 are arranged so that the long side wall 2 of the folding container C1 assembled in a box shape is in contact with each other, and one large folding is placed above the folding container C1. After placing the container C2 so that the long side wall 20 of the large folding container C2 is located above the short side walls 3 arranged side by side of the folding container C1, the container C2 is located below as shown in FIG. When the large folding container C2 is stacked on the two folding containers C1, the lower fitting base 10f of the large folding container C2 is fitted into the short side wall fitting recess 3c of the folding container C1 positioned below. In addition, the short side wall side fitting projection piece 3d formed on the upper surface of the upper end flange 3a of the folding container C1 located below is a large size folding. It is configured to be fitted into the fitting space A10 formed in the lower fitting base portion 10f of the container C2. Accordingly, like the above-described stacking of the folding containers C1 assembled in the box shape, the large folding container C2 positioned above moves horizontally with respect to the two folding containers C1 positioned below. There is no. In addition, the adjacent base part 3b formed in the upper end flange 3a of the short side wall 3 arranged in parallel of the two folding containers C1 positioned below is formed in the bottom 10 of the large folding container C2 positioned above. It is comprised so that it may fit in the fitting recessed part 10j.

  In addition, the two folding containers C1 are arranged so that the long side bank portion 1a of the bottom portion 1 of the folded folding container C1 is in contact with each other, and one large folding container C2 is disposed above the folding container C1. When the long side bank portion 10a of the bottom portion 10 of the large folding container C2 is stacked so as to be positioned on the short side bank portion 1b of the folding container C1, the large side portion 10a is positioned above. In the fitting space A10 formed in the lower fitting base portion 10f of the bottom portion 10 of the folding container C2, the bottom side fitting protrusion formed in the short side bank portion 1b of the bottom portion 1 of the folding container C1 located below. The piece 1i is configured to be fitted. Therefore, the large folding container C2 positioned above does not move horizontally with respect to the two folding containers C1 positioned below.

  In the present embodiment, the upper end flange 2a of the long side wall 2 of the folding container C1 is formed flat, and, like the long side wall of the conventional folding container, both ends of the upper end flange 2a have outer holding projections. Therefore, it is not necessary to form a recess in the bottom 10 of the large folding container C2 so that the outer holding projection formed on the long side wall of the folding container located below fits into the large folding container C2. The rigidity and strength of the bottom 10 of the container C2 are improved.

FIG. 1 is a perspective view of the folding container of the present invention in a state of being assembled into a box shape. FIG. 2 is a perspective view from above of the bottom part of the folding container of the present invention. FIG. 3 is a perspective view of the bottom of the folding container of the present invention from the back side. FIG. 4 is a partial perspective view of a long side wall constituting the folding container of the present invention. FIG. 5 is a partial perspective view of a short side wall constituting the folding container of the present invention. FIG. 6 is a perspective view of a state in which large folding containers are stacked on the folding container of the present invention. FIG. 7 is a perspective view from the back of the large folding container shown in FIG. FIG. 8 is a perspective view of a state in which a large folding container is disposed above the folding container of the present invention.

Explanation of symbols

1 ............ Bottom 1d ......... Short side fitting recess 1f ...・ ・ ・ Short side lower fitting base 1h ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ Bottom peripheral wall 1i ・ ・ ・ ・ ・ ・ ・ ・ Bottom side fitting protrusion 2・ ・ ・ ・ ・ ・ ・ ・ ・ ・ Long side wall 3 ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ Short side wall 3d ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・Short side wall fitting protrusion

Claims (1)

A bottom portion, one opposing side wall hinged to one opposing bank portion of the bottom portion, and another opposite side wall hinged to the other opposing bank portion having a height higher than the bank portion; in folding container having a central portion of the lower surface of the tall bank section, the outer surface substantially flush with an outer surface of the bank portion and the bottom wall and substantially parallel strip front plate, strip-shaped front plate From both ends of the bank, the vertical vertical side plate that is perpendicular to the lower surface of the bank portion and the belt-like front plate and connected to the bottom peripheral wall, and the lower end of the vertical vertical plate toward the lower surface of the bank portion A lower mating pedestal having a plurality of mating spaces, each of which is inclined in a direction away from each other, and is composed of an inclined side plate connected to the bottom peripheral wall and a plurality of partition plates substantially parallel to the vertical side plate. Is formed and also before Between the pair of upper pedestal portions formed at both ends of the upper surface of the high bank portion, a bottom side fitting protrusion that can be fitted in the fitting space formed in the lower fitting pedestal portion. The upper end flange located between the pedestal portions formed on both ends of the upper surface of the upper end flange of the other side wall hinged to the high bank portion is container folding wherein the matable engagement protrusion is protruded to the fitting space formed in the lower fitting base portion.

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