JP2023091930A - container - Google Patents

Abstract

To provide a container which has a higher connection strength than before between height-raising side walls.SOLUTION: In a container 10A, a fitting connection member 51 is fitted from above in height-raising side walls 30, 35, 41 adjacent to each other in a use state, and those adjacent height-raising side walls 30, 35, 41 are connected with each other, so a connection strength of the height-raising side walls 30, 35, 41 with each other improves with respect to a load applied from the inside or from the outside to the height-raising side walls 30, 35, 41. Also, by including inside ribs 51X, 51Y in an L-shaped groove part 51M of the fitting connection member 51, the fitting connection member 51 is prevented from spreading in the groove width direction, and thus the strength is improved.SELECTED DRAWING: Figure 1

Description

FIELD OF THE DISCLOSURE The present disclosure relates to containers with variable capacity utilizing elevated sidewalls.

As this type of container, a locking member that is hingedly connected to one of the adjacent bulky side walls and pivots horizontally is locked to the other bulky side wall to connect the bulky side walls. known (see, for example, Patent Document 1).

Japanese Patent Application Laid-Open No. 2015-221688 (Figs. 1 and 3)

However, in the structure of the conventional container described above, when a load is applied to the bulky side walls from the inside or the outside, the connection between the bulky side walls by the locking member may be disengaged. It has been demanded.

According to a first aspect of the invention, which has been made to solve the above-mentioned problems, the entirety has a rectangular parallelepiped shape with an open top, and at least three or more side walls are connected to the upper ends of a plurality of side walls, respectively, and the raised side walls are connected to the upper ends of the side walls. is fitted to the adjacent bulky side walls from above in the container that can be changed from the non-use state overlapping the side walls to the use state standing on the side walls to increase the storage capacity. It is a container having a fitting connection member that connects the bulky side walls.

In the invention according to claim 2, the fitting connection member has an L-shaped groove portion in which the pair of adjacent bulky side walls are accommodated in a state separated from each other, and corresponds to at least one side of L in the L-shaped groove portion. 2. A container as claimed in claim 1, comprising internal ribs on the interior of the portion facing the lateral end surfaces of the raised side walls.

The invention of claim 3 is the container according to claim 2, wherein the inner ribs are provided inside respective portions corresponding to two sides of the L-shaped groove.

According to the invention of claim 4, all of the elevated side walls and all of the side walls that support them are provided, and when the elevated side walls are in the state of use, the bulky side walls engage with each other so that the bulky side walls are in the state of use. 4. The container according to any one of claims 1 to 3, comprising an upright holding mechanism for holding the container in a state.

According to the fifth aspect of the invention, the elevated side wall is connected to the side wall so as to be rotatable and vertically movable, and is held in the use state by the upright holding mechanism at the lower end position of the vertical movable range. 5. A container according to claim 4, wherein said retention is released in the upper end position.

According to a sixth aspect of the present invention, the planar shape of the entire fitting connection member is an L-shape that fits within the planar shape of the corner portion of the side wall, and the bulky side wall is fitted with the fitting connection member. 6. A container as claimed in any one of claims 1 to 5, wherein the portion includes a stepped raised sidewall which is stepwise thinner than the overall thickness.

In the container according to claim 1, when the container is in use, the fitting connection member is fitted to the adjacent bulky side walls from above, and the adjacent bulky side walls are connected to each other. The connection strength between the bulky side walls against the load is improved.

In addition to the fitting connection member, another connection mechanism for connecting the bulky side walls may be provided, and the fitting connection member and the other connection mechanism may be used together. The combined use may be a form in which both the fitting connection member and another connection mechanism are provided at the corner portion where the adjacent bulky side walls are perpendicular to each other, or the corner portion provided with the fitting connection member and the other connection mechanism in one container may be used. , a corner portion having another connecting mechanism may be separated, or a corner portion having both a fitting connecting member and another connecting mechanism, a fitting connecting member and another connecting mechanism may be separated. It may be a form provided with a corner portion provided with only one of. Other connecting mechanisms include, for example, a structure in which the bulky side walls are slid relatively up and down to connect inseparably in a direction other than up and down, and a structure in which the bulky side walls are connected with magnets. . Further, the raised side wall when not in use may overlap the inner surface or the outer surface of the side wall.

In the container according to claim 2, since the pair of adjacent raised side walls are accommodated in the L-shaped groove portion of the fitting connection member in a state separated from each other, the pair of raised side walls do not interfere with each other. The work of fitting the connecting member to the pair of bulky side walls can be easily performed. In addition, since the inner rib is provided inside the fitting connection member, the L-shaped groove portion is prevented from expanding in the groove width direction, and the strength of the fitting connection member increases. Here, the inner rib may be provided only on a portion corresponding to one side of L of the L-shaped groove, or may be provided on a portion corresponding to two sides of L of the L-shaped groove as in the configuration of claim 3. good too.

In the container according to claim 4, since the raised side wall is held in the used state by the upright holding mechanism, it is possible to easily perform the operation of fitting the fitting connection member to the raised side wall. Here, the upright holding mechanism may be provided with an elastic engaging portion that is elastically deformed during rotation of the elevated side wall and elastically restored when the elevated side wall is in use. The bulky side wall may be connected to the side wall so as to be rotatable and vertically movable, and may be held in use at the lower end position of the vertical movable range, while the holding is canceled at the upper end position. It should be noted that the upright holding mechanism may not be provided on all of the bulky side walls and side walls.

In the container according to claim 6, the planar shape of the entire fitting connection member is L-shaped so that it can be accommodated within the planar shape of the corner portion of the side wall. In addition, by providing the bulky side wall with a stepped portion that is thin compared to the overall thickness, the stepped portion between the mating connection member and the bulky side wall is suppressed. In this respect as well, it is possible to suppress catching between the load and the fitting connection member.

FIG. 4 is a perspective view of a container in a raised state according to an embodiment of the present disclosure; Exploded perspective view of container Exploded perspective view of part of the container Exploded perspective view of part of the container (A) Perspective view of partially broken bulky side wall in use, (B) Perspective view of partially broken bulky side wall in unused state Perspective view of fitting connection member FIG. 2 is a perspective view of a container with bulky side walls not in use. Perspective view of the container in the middle of rotation of the bulky side wall A perspective view of a container in which the bulky side wall is placed in an upright position at the upper end of the movable range. A perspective view of a container in a raised state (A) Cross-sectional view of AA cross section of FIG. 10, (B) Cross-sectional view of BB cross section A perspective view of a partially broken corner portion of stacked containers in a bulky state. Perspective view in the middle of folding the container Perspective view of stacked containers

A container 10A according to an embodiment of the present disclosure will be described below with reference to FIGS. 1 to 14. FIG. As shown in FIG. 1, the container 10A has a structure in which a front opening 16 is provided by removing a lateral middle portion of one side wall of a rectangular parallelepiped with an open top from the upper end to the lower end. Further, the container 10A has a rectangular planar shape, and a front opening 16 is formed in one long side wall.

Hereinafter, when distinguishing between the side walls, the side wall 14 having the front opening 16 will be referred to as the "front side wall 14", the side wall 13 facing it will be referred to as the "rear side wall 13", and the remaining pair of side walls 15 will be referred to as the "side walls." side wall 15". Moreover, when these side walls are not distinguished, they are referred to as "side walls 13 to 15".

Sidewalls 13-15 are hinged to bottom wall 11 such that a pair of lateral sidewalls 15 are folded over bottom wall 11 as shown in FIG. 14 can be laid down to be in a folded state like container 10A at the upper end of FIG. More specifically, as shown in FIG. 2, a pair of first bank portions 11A protrude from a pair of long side portions of the outer edge portion of the bottom surface 11S, which is also the upper surface of the bottom wall 11, and a pair of A pair of second bank portions 11B, which are lower than the first bank portion 11A, protrude from the short sides of . A plurality of hinge legs 19 at the lower ends of the front wall 14 and the rear wall 13 are hinge-connected to the pair of first bank portions 11A, and a pair of lateral walls are connected to the pair of second bank portions 11B. A plurality of hinge legs 19 at the lower end of 15 are hinged. Then, the side walls 13 to 15 rotate so as to change between the standing posture and the horizontal posture overlapping the bottom wall 11 . Also, in the assembled state of the container 10A, the pair of lateral side walls 15 are sandwiched between the front side wall 14 and the rear side wall 13, and when folded as described above, as shown in FIG. First, the pair of lateral side walls 15 are laid down on the bottom wall 11 first, and then the front side wall 14 and the rear side wall 13 are laid down on the pair of side walls 15 . Note that the pair of side walls 15 do not overlap each other in a horizontal posture, and the front wall 14 and the rear wall 13 overlap each other in a horizontal posture. Further, on the lower surface of the bottom wall 11, a stacking projection 11Z (see FIG. 12) is formed by projecting an inner portion from the outer edge in a stepped manner. As shown in FIG. 14, when another container 10A is stacked on top of the assembled container 10A, the stacking protrusion 11Z of the upper container 10A is positioned inside the top opening of the lower container 10A. When another container 10A is stacked on top of the container 10A in the fitted and folded state, the stacking protrusions of the upper container 10A are placed inside the pair of first bank portions 11A of the lower container 10A. 11Z fits.

As shown in FIG. 2, the lateral side wall 15 has a pair of longitudinal ribs 20 and a pair of lateral ribs 21, 22 on the outer surface of a flat plate-like main plate 15S that forms the entire inner surface thereof. A pair of vertical ribs 20 extend vertically on both sides of the main plate 15S, and one horizontal rib 21 extends along the lower edge of the main plate 15S between the lower ends of the pair of vertical ribs 20. I am in touch. A plurality of hinge legs 19 described above hang down from the lower surface of the lateral rib 21 . The other horizontal rib 22 communicates between the pair of vertical ribs 20 at a position slightly above the vertical center of the horizontal side wall 15 . The tip surfaces of these vertical ribs 20 and horizontal ribs 21 and 22 are flush with each other.

As shown in FIG. 3, the upper ends of the pair of vertical ribs 20 are arranged flush with the upper end of the main plate 15S, and a plurality of standing support portions 33 are provided between the upper ends of the pair of vertical ribs 20. They are spaced apart in the lateral direction of the lateral side wall 15 . Each standing support portion 33 has, for example, a rectangular parallelepiped shape with an open upper surface. The upper surface of the standing support portion 33 is flush with the pair of vertical ribs 20 and the upper surfaces of the main plate 15S, and the front surface of the standing support portion 33 is flush with the tip surfaces of the vertical ribs 20 and the horizontal ribs 21 and 22. placed in one. Furthermore, elongated holes 34 extending in the vertical direction are formed in the mutually facing walls of the adjacent standing support portions 33 .

Although not shown, the outer surface of the rear side wall 13 also has a structure similar to that of the side wall 15 . That is, the rear wall 13 has a pair of vertical ribs 20 , horizontal ribs 21 and 22 , a plurality of standing support portions 33 and long holes 34 . Also, as shown in FIG. 2, the front wall 14 has a pair of vertical ribs 20 and horizontal ribs 21 and 22 similar to the rear wall 13 on both sides of the front opening 16, and a plurality of (two) standing supports. A portion 33 and an elongated hole 34 are provided.

As shown in FIG. 2, a pair of side connecting portions 24 are provided on the outer surfaces of the pair of vertical ribs 20 of the lateral side wall 15 facing opposite sides. The side connecting portion 24 is formed by providing a strip-shaped piece extending from the upper end of the lateral wall 15 to a position close to the lower end (the position reaching the upper surface of the first embankment portion 11A) on both sides of the main plate 15S of the lateral wall 15, and the strip-shaped strip A rib 23 lower than the longitudinal rib 20 protrudes from the outer edge of the outer surface. In addition, a plurality of connecting projections 15</b>A are provided at a plurality of positions in the vertical direction of the side connecting portion 24 so as to protrude substantially to the same height as the vertical ribs 20 .

On both side edges of the inner surfaces of the front wall 14 and the rear wall 13, there are a plurality of engaging projections 13C which have engaging holes 13A into which a plurality of connecting projections 15A are inserted and which abut on the outer surface of the side connecting portion 24. are provided. In addition, a part of the front side wall 14 and the rear side wall 13 is cut off like a cantilever on the upper part of the front side wall 14 and the rear side wall 13 near the side edges, and a protrusion is provided on the inner surface of the tip part. An elastic engaging piece 13B is provided. Then, in a state in which the connecting protrusion 15A is engaged with the engagement hole 13A, the elastic engagement piece 13B engages with the inner surface of the lateral side wall 15 to hold the container 10A in the assembled state, and the elastic engagement piece 13B is pressed. When the inner surface of the side wall 15 is disengaged, the container 10A is in the folded state described above.

As shown in FIG. 1, bulk side walls 30, 35 and 41 are hinged to the upper ends of the side walls 13-15 of the container 10A. As shown in FIG. 7, the container 10A is in an elevated state in which the elevated side walls 30, 35, and 41 are held in an upright posture on the side walls 13 to 15, and as shown in FIG. , 35 and 41 are superimposed on the outer surfaces of the side walls 13-15. In the following description, unless otherwise specified, the vertical direction of the elevated side walls 30, 35, 41 is assumed to be the vertical direction in an upright posture in which the hinge leg portion 31, which will be described later, is positioned at the lower end. 41 will be described in detail.

As shown in FIG. 1, the raised side walls 35 of the front side wall 14 are arranged in pairs on both sides of the front opening 16 . As shown in FIG. 4, each elevated side wall 35 has a structure in which reinforcing ribs 35L are provided on the outer surface of a flat plate-like main plate 35S positioned on the inner surface while standing on the front wall 14. It has a hinge leg portion 31 and a pair of lower surface protrusions 32 arranged side by side across the hinge leg portion 31 . A pair of lower surface projections 32 has a box-shaped structure. Further, the hinge leg portion 31 extends downward from the lower surface projection portion 32, and a pair of hinge projections 31P protrude from both side surfaces of the lower end portion thereof.

Then, as shown in FIG. 5A, the lower end of the hinge leg 31 is received between the pair of standing support portions 33, and as shown in FIGS. It is engaged with the long hole 34 so as to be rotatable and slidable up and down. Then, as shown in FIGS. 5(A) and 9, the elevated side wall 35 is placed at the upper end of the slidable range with the hinge leg portion 31 positioned at the lower end, and then lowered straight down from there. 1 and 11(A), the plurality of lower surface projections 32 of the raised side wall 35 are fitted into the plurality of upright support portions 33 of the front side wall 14, whereby the raised side wall is 35 is held on the front wall 14 in an upright position for use. Further, when the bulk side wall 35 is lifted straight up from there and laid down to the outside, as shown in FIG. 20 , lateral ribs 22 and a plurality of standing support portions 33 .

The overall thickness of raised sidewall 35 is slightly less than the overall thickness of front sidewall 14 . When the bulky side walls 35 are not in use, as shown in FIG. 5B, the whole bulky side walls 35 are accommodated in the receiving recesses 29 so as not to protrude from the distal end surfaces of the lateral ribs 22 . . Further, when the elevated side wall 35 is put into use, the inner surface of the elevated side wall 35 is positioned slightly outside the inner surface of the front side wall 14, and the outer surface of the elevated side wall 35 is positioned slightly outside the outer surface of the front side wall 14. located inside. Furthermore, as shown in FIG. 11(B), the side surface of one lateral end of the elevated side wall 35 is located slightly inside the inner surface of the front opening 16, and the other lateral end of the elevated side wall 35 is located slightly inside. The side surface is positioned slightly closer to the front opening 16 than the extended surface of the inner surface of the lateral side wall 15 .

As shown in FIG. 2, the raised side wall 30 of the rear side wall 13 has a structure in which a reinforcing rib 30L is provided on the outer surface of a strip-shaped main plate 30S extending in the lateral direction of the rear side wall 13. Similar to the sidewalls 35, the lower projections 32 and the hinge legs 31 are arranged alternately. Also, the overall thickness of the raised side wall 30 is slightly smaller than the overall thickness of the rear side wall 13 . Further, similarly to the bulky side wall 35, the bulky side wall 30 is also slidably and rotatably hinged to the upper end portion of the rear side wall 13. As shown in FIG. When the raised side wall 30 is held in the state of use by fitting the lower surface protrusion 32 and the upright support portion 33, the entire bulky side wall 30 is accommodated in the region directly above the rear side wall 13, and when it is not in the state of use, the rear side wall Thirteen receiving recesses 29 (not shown) receive the entire raised side wall 30 . Further, both side surfaces of the elevated side wall 30 in the horizontal direction are positioned slightly away from the side wall 15 from the extended surface of the inner side surface of the side wall 15 , similarly to the one side surface of the elevated side wall 35 .

In addition, a pair of stepped surfaces 30D are formed on the inner surface of the elevated side wall 30 at positions near both ends in the horizontal direction, and both ends of the elevated side wall 30 in the horizontal direction are positioned in the middle between the pair of stepped surfaces 30D. A pair of connection fitting portions 30E thinner than the portion. When the bulky side wall 30 is put into use, the inner surface of the connecting fitting portion 30E is positioned slightly outside the inner surface of the rear wall 13, similarly to the bulky side wall 35 described above. The outer surface of 30E is located slightly inside the outer surface of the rear wall 13. As shown in FIG.

As shown in FIG. 3, the elevated side walls 41 of the pair of lateral side walls 15 have a structure in which reinforcing ribs 41L are provided on the outer surface of a strip-like main plate 41S extending in the lateral direction of the lateral side walls 15, and on the lower surface. , lower projections 32 and hinge legs 31 are arranged alternately in the same manner as the raised side walls 30, 35. As shown in FIG. Also, the overall thickness of the raised side wall 41 is slightly smaller than the overall thickness of the lateral side wall 15 . Similarly to the bulk side walls 30 and 35, the bulk side wall 41 is also slidably and rotatably hinged to the upper end portion of the lateral side wall 15. As shown in FIG. When the raised side wall 41 is held in the state of use by fitting the lower surface projection 32 and the upright support portion 33, the entire bulky side wall 41 is accommodated in the area right above the side wall 15, and when it is not in the state of use, the side wall 15 receiving recesses 29 are received as a whole. Further, both lateral side surfaces of the bulky side wall 41 are arranged at positions separated from the extension surfaces of the inner side surfaces of the front side wall 14 and the rear side wall 13 .

Furthermore, a pair of stepped surfaces 41D are formed on the inner surface of the elevated side wall 41 near both ends in the horizontal direction, similar to the elevated side wall 30. A pair of connection fitting portions 41E is formed which is thinner than the intermediate portion between the pair of stepped surfaces 41D. When the bulky side wall 41 is put into use, the inner surface of the connecting fitting portion 41E is positioned slightly outside the inner surface of the lateral side wall 15, similarly to the bulky side wall 35 described above. The outer surface of 41E is located slightly inside the outer surface of the lateral side wall 15. As shown in FIG.

The container 10A is changed from a normal state in which the elevated side walls 30, 35, 41 are in an unused state to an elevated state in which the elevated side walls 30, 35, 41 are in a used state as shown in FIG. However, depending on the mode of use, there may be concerns about the strength of the bulky side walls 30, 35, 41 against loads applied to the inside or outside. For such a case, the container 10A is provided with four fitting connection members 51 that connect the adjacent bulky side walls 30, 35, 41 together.

The fitting connection member 51 has an L-shaped bent square groove structure with an open bottom surface, and as shown in FIG. It has a pair of mating sidewalls 51A depending from and has an internal L-shaped groove 51M. The connecting fitting portion 41E of the bulky side wall 41 is just fitted inside the portion corresponding to one side of the L-shape of the fitting connecting member 51, while the L-shaped portion of the fitting connecting member 51 is fitted. Either the connection fitting portion 30E of the elevated side wall 30 adjacent to the elevated side wall 41 or the elevated side wall 35 is just fitted inside the portion corresponding to the other side. The matching bulky side walls 30 , 35 , 41 are connected by a fitting connecting member 51 . It should be noted that the fitting of the fitting connection member 51 into the fitting portions 30E and 41E of the elevated side walls 30 and 41 is simply referred to as "fitting of the fitting connection member 51 into the elevated side walls 30 and 41". .

Specifically, both sides of the L-shaped fitting connection member 51 have the same length. Then, in a state in which the fitting connection member 51 is fitted to the bulk side walls 30, 35, and 41, one end surface of the fitting connection member 51 is aligned with the inner surface of the front opening 16 as shown in FIG. 11(B). align with or adjoin the stepped surfaces 30D, 41D of the elevated side walls 30, 41;

Further, the thickness of the fitting connection member 51 is substantially the same as the thickness of the side walls 13, 14, 15. The entire fitting connection member 51 is accommodated in the area right above the side walls 13, 14, 15, and the inner surface of the fitting connection member 51 and the inner surface of the side walls 13, 14, 15 are arranged substantially the same, The outer surface of the coupling member 51 and the outer surfaces of the side walls 13, 14, 15 are arranged substantially identically.

Furthermore, the height of the fitting connection member 51 is substantially uniform, and as shown in FIGS. , 35 and 41 are in contact with each other, the lower surface of the fitting connection member 51 is slightly lifted from the upper surfaces of the side walls 13, 14 and 15. As shown in FIG.

In addition, as shown in FIG. 6A, inner ribs 51X and 51Y are provided inside the fitting connecting member 51, and the shape of the fitting connecting member 51 including these inner ribs 51X and 51Y is similar to that of the container 10A. The fitting connection members 51 positioned at opposite corners are the same, and the fitting connection members 51 positioned at adjacent corners are mirror-symmetrical. The inner rib 51X overlaps the side surface of the elevated sidewall 30 or 35 (see FIG. 11B), and the inner rib 51Y overlaps the side surface of the elevated sidewall 41 (see FIG. 11A). 6A, the inner ribs 51X and 51Y have lower surfaces that are flush with the fitting side wall 51A and are connected to the upper surface and both side surfaces of the fitting connecting member 51. As shown in FIG. In addition, the inner rib 51X is formed by extending one flat plate wall forming the fitting side wall 51A located on the inner edge side of the fitting connection member 51 into the fitting connection member 51 (the inner rib 51X is formed by fitting and connecting It extends from one of the fitting side walls 51A located on the inner edge side of the member 51 and is connected to the fitting side wall 51A located on the outer edge side of the fitting connection member 51).

The description about the structure of 10 A of containers of this embodiment is above. Next, the effects of this container 10A will be described. The container 10A shown in FIG. 7 is in its assembled state and in its normal state with all of the bulky side walls 30, 35, 41 in a non-use state. When a plurality of containers 10A are stacked in this state, cargo can be taken in and out of the containers 10A through the front openings 16 of the containers 10A on each level, and the containers 10A can be used as product display shelves, warehouse racks, and the like ( See the first container 10A from the bottom in FIG.

Products having a height that cannot be accommodated in the container 10A in the normal state may be accommodated by raising the container 10A. In order to change the container 10A from the normal state to the raised state, the raised side walls 30, 35 and 41 are rotated upward as shown in FIG. Place at the top position of the range. Then, the elevated side walls 30, 35, 41 are lowered from there, and their lower surface protrusions 32 are fitted to the standing support portions 33 of the side walls 13, 14, 15, respectively.

Then, since the bulky side walls 30, 35, 41 are not connected to each other but are kept in use, the container 10A can accommodate tall products and can be stacked. .

However, there may be cases where the strength of the bulky side walls 30, 35, 41 against the load applied to the inside or outside thereof is a concern. In such a case, the fitting connection member 51 may be fitted from above to the adjacent bulky side walls 30, 35, 41 at each corner of the container 10A. Then, the adjacent bulky side walls 30, 35, 41 are connected by the fitting connection member 51, and the strength against the load applied to the inside or outside of the bulky side walls 30, 35, 41 is improved. Further, even with the container 10A to which the fitting connection member 51 is attached as shown in FIGS. 12 and 14, another container 10A can be stacked thereon.

The container 10A can be returned to the normal state by reversing the operation described above. Then, the elastic engaging pieces 13B of the container 10A in the normal state are pushed from the inside, and as shown in FIG. 14, the container 10A can be folded (see the first container 10A from the top in FIG. 14). Further, since the elevated side walls 30, 35, 41 are accommodated in the receiving recesses 29 of the side walls 13 to 15, even when the container 10A is folded, the elevated side walls 30, 35, 41 do not make it bulky. Note that the fitting connection member 51 that is not used may be stored in a bag or the like, for example.

As described above, in the container 10A of the present embodiment, the fitting connection member 51 is fitted to the adjacent bulky side walls 30, 35, 41 from above in the state of use, and the adjacent bulky side walls 30, 35, 41 are fitted together. Since they are connected to each other, the connection strength between the bulky side walls 30, 35, 41 against the load applied to the bulky side walls 30, 35, 41 from the inside or outside is improved. In addition, since the inner ribs 51X and 51Y are provided inside the L-shaped groove portion 51M of the fitting connection member 51, the fitting connection member 51 is prevented from expanding in the groove width direction, thereby increasing the strength.

In addition, the overall planar shape of the fitting connection member 51 is an L shape that fits within the planar shapes of the corner portions of the side walls 13 to 15, and the fitting connection member 51 does not protrude from the inner and outer surfaces of the side walls 13 to 15. It is possible to suppress catching between the load and the fitting connection member 51.例文帳に追加Furthermore, the bulky side walls 30, 41 are formed such that the connecting fitting portions 30E, 41E, which are the fitting portions with the fitting connecting member 51, are stepped and thinner than the thickness of the bulky side walls 30, 41 as a whole. Since the entire bulky side wall 35 is accommodated in the fitting connecting member 51, the space between the fitting connecting member 51 and the bulky side walls 30, 35, 41 is reduced. Steps are suppressed, and in this respect as well, catching between the luggage and the fitting connection member 51 is suppressed.

In addition, since the pair of adjacent elevated side walls 30, 35, 41 are accommodated in the fitting connection member 51 in a state separated from each other, the pair of elevated side walls 30, 35, 41 do not interfere with each other. In this respect as well, the work of fitting the fitting connecting member 51 to the bulky side walls 30, 35, 41 can be easily performed. In addition, since the adjacent elevated side walls 30, 35, 41 are accommodated in the fitting connection member 51 in a spaced-apart manner, the side surfaces of the elevated side walls 30, 35, 41 in the unused state can be A reinforcing structure (a rib, a surface change portion, a column, etc.) can be provided at the corner portion between the side walls 13 to 15 away from the corner portion between the side walls 13 to 15, thereby increasing the strength of the container 10A. Also, the elevated side walls 30, 35, 41 can be accommodated in the receiving recesses 29 of the side walls 13-15 while avoiding interference with the reinforcing structure. Further, the elevated side walls 30, 35, 41 and the side walls 13 to 15 are engaged with each other when the elevated side walls 30, 35, 41 are put into use, and the elevated side walls 30, 35, 41 are kept in use. Since the lower surface protrusion 32 and the standing support portion 33 (corresponding to the standing holding mechanism of the present disclosure) are provided, the fitting operation of the fitting connecting member 51 to the bulky side walls 30, 35, 41 is facilitated. can be done.

In this embodiment, as described above, the elevated side walls 30, 35, and 41 are maintained in the standing posture and lowered from the upper end position of the slidable range. The lower surface protrusions 32 of the elevated side walls 30, 35, and 41 are fitted into the standing support portions 33 of the side walls 13 to 15, respectively, and the elevated side walls 30, 35, and 41 are held in an upright state. The state of use may be referred to as an "upright holding posture", and each posture may be distinguished.

[Other embodiments]
(1) The shape of the fitting connection member is not limited to the shape of the fitting connection member 51 of the above-described embodiment. Any shape may be used as long as it can be connected to each other. Specifically, a pair of inner ribs 71X may be provided symmetrically within the fitting connection member 71 as in the fitting connection member 71 shown in FIG. 6(B), or as shown in FIG. The inner ribs 72X may be arranged diagonally in the fitting connection member 71 like the fitting connection member 72 described above. Moreover, like the fitting connecting member 73 shown in FIG. 6D, a pair of orthogonal walls forming the inner fitting side wall 73A may be connected by a connecting rib 73X. Also, like the fitting connecting member 74 shown in FIG. 6(E) , a part of the fitting side wall 74A is separated into a cantilever shape extending downward to provide a pair of elastic locking pieces 74E. The locking protrusions 74T at the lower ends of the pair of elastic locking pieces 74E may be engaged with the lower surfaces of the bulky side walls 30, 35, 41. Furthermore, as in the fitting connecting member 75 shown in FIG. 6(F), even if the fitting side wall 75A and the fitting side wall 75C hanging down from the outer edge part and the inner edge part of the ceiling part 75B are different in height, good.

(2) The upright holding mechanism is not limited to the structure in which the lower surface protrusions 32 of the elevated side walls 30, 35, and 41 are engaged with the upright support portions 33 of the side walls 13 to 15 as in the above embodiment. Instead, for example, the elevated side wall or the side wall may be provided with an elastic engaging portion that is elastically deformed during rotation of the elevated side wall and elastically restored when the elevated side wall is put into use. Further, fitting holes may be provided vertically through the lower portions of the bulky side walls 30, 35 and 41, and fitting protrusions projecting upward from the side walls 13 to 15 may be engaged with the fitting holes.

(3) Furthermore, in the case where the raised side wall overlaps the outer side surface of the side wall when not in use, for example, a regulating protrusion protruding from the edge of the upper surface of the side wall on the side of the outer side is provided, and the raised side wall is slid. In a configuration in which the raised side wall is supported by the regulating protruding wall and held in the used state unless it moves to the upper end position of the range, or in which the raised side wall overlaps the inner surface of the side wall in the unused state, for example, the side wall A structure having a similar configuration in which a regulating protrusion protruding from the edge of the inner side surface of the upper surface is also included as an upright holding mechanism. In addition, regardless of whether the raised side wall overlaps the inner side surface or the outer side surface of the side wall, the regulating protruding wall protrudes from both the inner side edge and the outer side edge of the upper surface of the side wall. It may be a structure. Furthermore, a plurality of types of upright holding mechanisms may be used together.

(4) In the above embodiment, the side walls 13 to 15 are provided with the long holes 34, and the hinge projections 31P of the elevated side walls 30, 35, 41 are slidably and rotatably engaged therewith. On the contrary, the elevated side walls 30, 35, 41 may be provided with elongated holes and the side walls 13-15 may be provided with hinge projections 31P. Further, the bulk side walls 30, 35, 41 do not have to move up and down, and do not need to rotate.

(5) In the above embodiment, the upright holding mechanism is provided between all the side walls 13 to 15 of the elevated side walls 30, 35, and 41. It does not have to be provided in

(6) In the above-described embodiment, the adjacent elevated side walls 30, 35, 41 are separated from each other when in use, but the elevated side walls may be connected to each other. As a structure for connecting the elevated side walls, one of the adjacent elevated side walls is vertically slid relative to the other to engage with the other, or an engagement lever that rotates horizontally to one of the adjacent elevated side walls. is provided and engaged with the other raised side wall.

(7) The container 10A of the above embodiment is foldable and has a front opening 16. A mating connection member may be provided.

(8) In addition, when not in use, the elevated side walls 30, 35, 41 may overlap the inner surface or the outer surface of the side walls.

(9) In the above embodiment, the raised side walls 30, 35, 41 were entirely housed in the receiving recess 29 when not in use, but a part of them may protrude from the receiving recess 29. FIG.

(10) In the above embodiment, when the bulk side walls 30, 35, 41 in the non-use state are brought out of the receiving recess 29 and put into the use state, they are rotated (outwardly and upwardly) by a certain amount and then upwardly. The structure is such that it is further rotated while being slid and then slid downward, but a structure in which it is first slid upward and then rotated (outward and upward) and then slid downward may also be used. That is, the rotatable and vertically movable structure is not limited to the embodiment.

Although specific examples of the technology included in the scope of claims are disclosed in the specification and drawings, the technology described in the scope of claims is not limited to these specific examples. Various modifications and changes of the examples are included, and a part of specific examples is also included.

10A Container 13-15 Side Walls 30, 35, 41 Bulky Side Walls 30D, 41D Stepped Surfaces 30E, 41E Connection Fitting Portion 32 Bottom Projection (Upright Holding Mechanism)
33 upright support (upright holding mechanism)
34 long holes 51, 71 to 75 fitting connection member 51M L-shaped groove 51X, 51Y, 71X, 72X inner rib

Claims (6)

The whole has a rectangular parallelepiped shape with an open upper surface, and at least three or more side walls are connected to the upper end portions of the plurality of side walls, respectively, and the bulk side walls are overlapped with the side walls from the non-use state to the side walls. In a container that can be changed to an upright use state to increase the capacity,
The container has a fitting connection member that fits into the adjacent bulky side walls from above in the state of use to connect the bulky side walls. The fitting connection member has an L-shaped groove portion in which the pair of adjacent bulky side walls are spaced apart from each other, and the bulky side wall is located inside a portion corresponding to at least one side of L in the L-shaped groove portion. 2. A container according to claim 1, comprising inner ribs facing the lateral edges of the upper wall. 3. The container according to claim 2, wherein said inner rib is provided inside each of portions corresponding to two sides of L of said L-shaped groove. An upright holding mechanism provided on all of the bulky side walls and all of the side walls that support them, and engages with each other when the bulky side walls are in the state of use to hold the bulky side walls in the state of use. 4. A container according to any one of claims 1 to 3, comprising: The bulky side wall is connected to the side wall so as to be rotatable and vertically movable, and is held in the use state by the upright holding mechanism at the lower end position of the vertical movable range, while being held at the upper end position. 5. The container of claim 4, wherein the is eliminated. The overall planar shape of the fitting connection member is an L shape that fits within the planar shape of the corner portion of the side wall, and the bulky side wall has a fitting portion with the fitting connection member that has a full thickness. 6. A container as claimed in any one of claims 1 to 5 including a stepped raised sidewall which is stepwise thin in comparison.

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