JP2020037447A - container - Google Patents

Abstract

To provide a container suitable for being stacked.SOLUTION: A folding container 1 includes a bottom wall component 2 having a substantially rectangular shape in a plan view, and side wall portions 6 and 7 extending upward along each side of the bottom wall component 2. On an upper side portion of the side wall portions 6 and 7, a top surface portion 15 is provided, constituting a top of the folding container 1 and extending at the same height continuously over an entire circumference of the upper side portion of the side wall portions 6 and 7, and a mating recess 16 is provided, into which a bottom reinforcing portion 61 provided on a lower surface side of the bottom wall component 2 of an upper folding container 1 is inserted, when the folding containers 1 are vertically stacked using their top surface portions 15.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a container used for carrying articles and the like.

  2. Description of the Related Art Conventionally, a container used for transporting articles and the like is provided with a substantially rectangular plate-shaped bottom wall component, and a side wall portion extending upward from a side of the bottom wall component, and a box-like shape that opens upward. Has made. In addition to stacking the containers vertically in the same direction, the two containers are arranged side by side so that the wide side walls of the containers are substantially in contact with each other. Containers that can be stacked in a direction in which the containers are turned by 90 degrees are known (for example, see Patent Document 1).

Japanese Utility Model Publication No. 50-4931

  By the way, the container of Patent Document 1 has a convex portion provided on the upper side of the side wall portion and a concave portion provided on the lower surface side of the bottom wall constituting portion. The portion is configured to fit into the recess of the upper container. However, when stacking transport units in a form in which containers are placed on a pallet, since the pallet has no concave portion that fits into the convex portion of the container, the load is concentrated on the convex portion of the container. There is a concern that the protruding portion of the container or a portion of the pallet that contacts the protruding portion of the pallet may be easily damaged.

  The present invention has been made in order to solve the above-described problems and the like, and an object of the present invention is to provide a container that can be suitably stacked.

  Hereinafter, each means suitable for solving the above-mentioned objects and the like will be described separately. In addition, a function and effect specific to the corresponding means will be added as necessary.

Means 1. A bottom wall component having a substantially rectangular shape in plan view,
A side wall extending upward along each side of the bottom wall component,
The upper side of the side wall portion constitutes the uppermost portion of the container, and a top surface portion extending continuously over the entire circumference of the upper side portion of the side wall portion at the same height is provided.
A fitted portion into which a fitting portion provided on the lower surface side of the bottom wall constituting portion of the upper container is inserted when the containers are stacked up and down adjacent to the top surface portion is provided. A container characterized by the above-mentioned.

  According to the means 1, since the top surface portion is provided at the uppermost portion of the container so as to extend over the entire periphery of the upper side portion of the side wall portion, for example, the transport units in a form in which the container is placed on a pallet are vertically When stacking (stacking), the pallet of the upper transport unit can be supported over the entire periphery of the upper side of the side wall of the container of the lower transport unit. For this reason, for example, compared to a configuration in which the top surface portion is provided only intermittently in the circumferential direction of the upper side portion of the side wall portion, the load of the upper transport unit is dispersed and supported over the entire circumference of the upper side portion of the side wall portion. can do. Therefore, in the stacked state of the transport units, it is possible to suppress deformation, damage, and the like of the upper side portion of the side wall portion or a portion of the pallet that contacts the upper side portion of the side wall portion. As a result, it is possible to stabilize the stacked state of the transport unit.

  Further, since the fitting portion is provided adjacent to the top surface portion on the upper side portion of the side wall portion, sufficient stabilization or the like is achieved even in a state where the containers are stacked vertically (stacked). be able to.

  Means 2. The container according to claim 1, wherein the top surface portion has a wide portion at a corner portion of the container.

  According to the means 2, the wide portion is provided at the corner portion having relatively high strength in the container, so that the load from above can be more positively supported at the corner portion. Therefore, it is possible to suppress partial deformation of the container (a part having relatively low strength) in the stacked state of the transport unit, and to stabilize the stacked state.

Means 3. The fitted portion is located on an outer side of the container than the top surface portion,
When the containers are stacked one on top of the other, the bottom wall component protrudes downward from a portion on the inner peripheral side relative to the outer peripheral corresponding portion which is supported in contact with the upper side of the side wall of the lower container. With lower support,
The fitting portion projects downward from the outer peripheral corresponding portion at a predetermined distance from the lower support portion,
The container according to claim 1 or 2, wherein the lower surface of the lower support portion and the lower surface of the fitting portion are provided at the same height position.

  According to the means 3, when the container is installed on the installation surface, both the lower support portion and the fitting portion are grounded to the installation surface, so that the lower support portion and the fitting portion cooperate with each other. The container can be supported, and deformation and the like of the bottom wall component can be suppressed. Further, in the stacked state of the containers, the portion of the lower container where the top surface is formed is sandwiched between the lower support portion of the upper container and the fitting portion inside and outside. Therefore, it is possible to further stabilize the stacked state of the containers.

Means 4. The top surface portion includes a wide portion at a corner portion of the container,
The side wall portion includes a pair of opposing first side walls, and a pair of opposing second side walls disposed between side portions of the pair of first side walls.
The first side wall portion and the second side wall portion are in an upright posture standing upright along a side edge of the bottom wall configuration portion, and are laid on a central portion side of the bottom wall configuration portion. The posture can be changed between the posture and
In an assembling state in which all the side walls are in the upright posture, and in a container capable of changing the state to a folded state in which all the side walls are in the lying posture,
The first side wall portion and the second side wall portion each include a wide configuration portion forming a part of the wide portion,
In the assembled state, the wide configuration portion of the first side wall portion and the wide configuration portion of the second side wall portion are configured to be adjacent to each other in the assembled state. The container as described.

  According to the means 4, in the upper side portion of the side wall portion of the folded container in the assembled state, the portion where the first side wall portion and the second side wall portion are adjacent to each other is a wide component, so that the folding container At the time of assembling / folding work, at the time of transportation in a stacked state, or the like, the top surface of the first side wall and the top surface of the second side wall can be prevented from contacting and damaging. Further, in the assembled state of the folding container, the top surface of the first side wall and the top surface of the second side wall abut in a relatively wide range in the wide configuration portion, and thus the first side wall and the top surface of the second side wall preferably contact each other. In addition, the displacement between the second container and the second side wall is more reliably suppressed, and the assembled state of the folding container can be stabilized.

Means 5. Containers can be stacked vertically vertically in the same direction, and containers can be stacked vertically in the same direction, displaced in the horizontal direction, and vertically stacked in a direction in which the containers are rotated horizontally by 90 degrees. It is configured to be stackable,
When stacking containers so as to straddle two containers placed side by side, the bottom wall component allows the top surface of the lower container to be arranged between the fitting portions. The container according to any one of means 1 to 4, further comprising an allowance portion.

  According to the means 5, various stacking methods can be selected according to the use, the installation space, and the like, and the convenience and versatility can be improved. Further, the fitting portion of the upper container and the fitted portion of the lower container are fitted by the allowance portion while avoiding interference between the top surface of the lower container and the fitting portion of the upper container. Can be combined. In addition, since the fitting portions are arranged on both sides of the allowance portion, it is possible to more reliably prevent the relative displacement of the upper container and the lower container in the horizontal direction, and Stabilization of the stacked state can be achieved.

It is a perspective view of the folding container in an assembled state. It is a perspective view of the folding container in a folded state. It is a top view of the folding container in an assembled state. It is a side view of the long side wall part side of the folding container in an assembled state. It is a side view by the side of the short side wall of the folding container in an assembled state. FIG. 6 is a partially enlarged side view showing a portion J in FIG. 5. It is an exploded perspective view of a folding container. It is a partial expansion perspective view of a bottom wall component part. It is a perspective view showing the undersurface side of a bottom wall constituent part. It is a perspective view including a partial section showing the folding container in an assembled state. FIG. 5 is a partially enlarged (horizontal) cross-sectional view showing the folded container (in a state in which a substantially spherical article is stored) in an assembled state. It is a perspective view including a partial section showing the folding container in an assembled state. It is a perspective view which shows the folding container (folding container which was piled up by stacking) by stacking folding containers straight up and down in the same direction. It is a partially expanded perspective view including a partial cross section of the folding container in an assembled state. It is a perspective view which shows the folded container (folded container which carried out the double-girder pile) by stacking by putting the upper folding container in the direction rotated 90 degrees horizontally with respect to the lower folding container. Place the upper folding container on the lower folding container in a direction rotated 90 degrees horizontally, or place the upper folding container on the lower folding container in the longitudinal width direction of the folding container. It is a perspective view which shows the folded containers (folded containers staggered) which were stacked by shifting by a distance of half the width. Place the upper folding container on the lower folding container in a direction rotated horizontally by 90 degrees, or place the upper folding container on the lower folding container in the longitudinal direction of the folding container. It is a perspective view which shows the folding container (brick-folded folding container) which was piled up by displacing or putting half the distance of. FIG. 18 is a perspective view showing the arrangement of the second-stage folding container from the top in FIG. 17. Among a pair of lower folding containers arranged in a substantially L-shape in plan view such that the long side wall portion and the short side wall portion abut against each other, an upper folding container with respect to one of the folding containers. In the direction rotated 90 degrees horizontally, and the upper folding container is shifted by half the longitudinal width of the folding container in the longitudinal width direction of the folding container with respect to the other lower folding container. It is a perspective view which shows the folding container (the windmill stacking / pinwheel stacking folding container) piled up in step. FIG. 20 is a perspective view showing the arrangement of the second-stage folding container from the top in FIG. 19.

  Hereinafter, an embodiment will be described with reference to the drawings. As shown in FIG. 1, FIG. 7, etc., the folding container 1 as a container has a bottom wall 3 having a substantially rectangular shape in a plan view and a bottom wall 3 along each long side of the bottom wall 3. A long side base portion 4 protruding upward, and a short side base portion 5 disposed between both side portions of the pair of long side base portions 4 and protruding upward from each short side portion of the bottom wall portion 3. Is provided.

  As shown in FIGS. 1, 2, 7, etc., the folding container 1 has a long side wall as a first side wall that is rotatably connected to each long side base 4. And a short side wall portion 7 as a second side wall portion which is rotatably connected to each short side base portion 5. The long side wall portion 6 and the short side wall portion 7 are erected above the long side base portion 4 and the short side base portion 5, respectively, and above the bottom wall portion 3. The posture can be displaced between the sleeping posture and the lying posture. Further, the protruding length of the long side base portion 4 from the bottom wall portion 3 is longer than the protruding length of the short side base portion 5 from the bottom wall portion 3. In addition, the lateral width of the long side wall 6 is substantially the same as the length of the long side base 4 in the longitudinal direction (the longitudinal width of the bottom wall forming part 2), and the lateral width of the short side wall 7 Is configured to be substantially the same as the distance between the pair of long side base portions 4.

  For this reason, in the present embodiment, the folding container 1 in the assembled state (see FIG. 1) in which all the long side wall portions 6 and the short side wall portions 7 are in the upright posture is moved to all the long side walls. When the side wall portion 6 and the short side wall portion 7 are in the folded state (see FIG. 2) in the laid posture, the pair of short side wall portions 7 are first laid in the laid posture, and then the long side The side wall portion 6 is set to a lying posture.

  When the folding container 1 is changed from the folded state to the assembled state, the pair of long side walls 6 can be set to the standing posture, and the short side walls 7 can be set to the standing posture. I have. In the present embodiment, the pair of long side walls 6 have the same shape, and the pair of short side walls 7 have the same shape. In the present embodiment, the bottom wall component 2, the long side wall 6, and the short side wall 7 are each made of polypropylene.

  As shown in FIG. 7 and the like, each of the long side wall portions 6 includes a long side base plate portion 11 having a substantially rectangular shape in a front view and a long side base plate along the upper side portion of the long side base plate portion 11. A long side upper frame portion 12 protruding outward from the plate portion 11, a long side lower flange portion 13 protruding outward from a lower side portion of the long side base plate portion 11, and a long side lower flange portion 13 And a substantially T-shaped long-side hinge portion 14 protruding downward from the lower surface of the main body.

  The long side upper frame portion 12 basically has a substantially U-shaped cross section that opens to the inside of the folding container 1 (see FIG. 14). Also, as shown in FIGS. 3 and 7, in the upper side (upper surface) of the long side upper frame portion 12, a portion near one side in the width direction of the long side wall portion 6 and a portion near the other side in the width direction. The portion between the adjacent portions and on the outer surface side of the long side wall portion 6 is one step lower than the other portions. On the other hand, even if the upper side of the long side upper frame portion 12 is a portion between a portion near one side and a portion near the other side in the width direction of the long side wall 6. The portion on the inner surface side of the long side wall portion 6 is flush with the portions near both side portions in the width direction of the long side wall portion 6 (the height position is the same and is continuous). ).

  Hereinafter, of the upper side (upper surface) of the upper side of the long side 12, portions near both sides in the width direction of the side of the long side 6, and the side wall 6 that is flush with the portion Is also referred to as a “top surface portion 15”. Further, a portion that is configured one step lower in the upper side portion of the long side upper frame portion 12 is also referred to as “fitting concave portion 16”. Note that a plurality of reinforcing ribs extending vertically are provided in an inner space having a substantially U-shaped cross section of the long side upper frame portion 12.

  In addition, as shown in FIG. 7, locking walls 17 protruding inward of the folding container 1 are provided on both sides of the long side wall 6. The locking wall 17 protrudes inward from both sides of the inner surface of the long-side base plate portion 11, and extends in the height direction of the long-side wall portion 6. The locking plate 17a includes a locking projection 17b and a lock locking portion 17c that are connected to a surface of the long side wall 6 on the central side in the width direction. The locking projection 17b has a tubular shape that opens toward the center in the width direction of the long side wall 6. The lock engaging portion 17c has a cylindrical shape that protrudes from the long side base plate portion 11 inward of the folding container 1 and opens forward in the protruding direction.

  As shown in FIG. 7 and the like, each short side wall portion 7 includes a short side base plate portion 21 having a substantially rectangular shape in a front view and a short side base portion along an upper side portion of the short side base plate portion 21. A short side upper frame portion 22 protruding outward from the plate portion 21, a short side lower flange portion 23 protruding outward from a lower side portion of the short side base plate portion 21, and a short side lower flange portion 23 And a generally T-shaped short side hinge portion 24 protruding downward from the lower surface of the lower side.

  Similar to the long side upper frame portion 12, the short side upper frame portion 22 includes, in the upper side portion (upper surface), a portion near one side portion in the lateral width direction of the short side side wall portion 7, and a portion near the other side portion. A portion between the adjacent portion and the outer surface side of the short side wall portion 7 is configured to be one step lower than other portions. On the other hand, in the short side upper frame part 22, even if it is a part between the vicinity part of one side part and the vicinity part of the other side part in the width direction of the short side wall part 7, the short side The portion on the inner surface side of the side wall portion 7 is flush with the portions near both sides in the lateral width direction of the short side wall portion 7 (the height position is the same and is continuous).

  Hereinafter, of the short-side upper frame portion 22, the upper surface of the vicinity of both sides in the width direction of the short-side wall portion 7, and the inner surface side of the short-side wall portion 7 flush with the upper surface. The upper surface of the part is also referred to as “top surface part 15”. Further, a portion that is configured one step lower on the upper surface side of the short side upper frame portion 22 is also referred to as “fitting concave portion 16”. Note that, of the top surface portion 15 of the long side wall portion 6 and the short side wall portion 7, a portion extending between portions near both side portions of the long side wall portion 6 and a portion of the short side wall portion 7. A portion extending between the portions near both side portions on the inner side of the folding container 1 is chamfered.

  As shown in FIG. 7, both sides on the outer surface side of the short side base plate 21 are in contact with and supported by the locking walls 17 of the long side wall 6 when the folding container 1 is assembled. A locked wall constituting portion 25 is provided. The locked wall constituting portion 25 is a thin and thin locked plate portion 25a in which a configuration (reinforcement rib or the like) on the outer surface side of the short side wall portion 7 is appropriately omitted, and a locked plate portion 25a. And a locked protruding portion 25b protruding from the outer surface.

  Further, a lock member 26 for connecting between the short side wall 7 and the long side wall 6 in the assembled state of the folding container 1 is provided on the upper portion on the outer surface side of each long side wall 6. Is installed. Each lock member 26 includes an operation unit 26a operable from the outer surface side of the short side wall 7 and a slide unit 26b configured to be slidable left and right in conjunction with operation of the operation unit 26a. When the operation state of the portion 26a is canceled, the slide portion 26b projects to the locked wall constituting portion 25.

  Then, as shown in FIG. 1 and the like, by setting the long side wall portion 6 and the short side wall portion 7 to the upright posture, the outer surface of the locked wall constituting portion 25 of the short side wall portion 7 ( 7) substantially abuts (contacts or approaches) the locking wall 17 of the long side wall 6, and the locking projection 17 b of the long side wall 6 and the short side wall 7 is locked (the locked protrusion 25b is inserted into the locking protrusion 17b), and the sliding portion 26b of the lock member 26 is The lock state is established (inserted) into the lock engagement section 17c. Thus, the short side wall 7 is prevented from being displaced inward, and the assembled state of the folding container 1 is maintained. Note that the locked wall constituting portion 25 of the present embodiment is configured in a concave shape that opens laterally and outwardly in the upright posture, and when the folding container 1 is assembled, the locked wall 17 is The upper side portion and the lower side portion are in contact with or close to the upper edge portion and the lower edge portion of the locked wall constituting portion 25, and the relative displacement in the vertical direction is regulated.

  As shown in FIGS. 9, 13, and the like, when the folding containers 1 in the assembled state are stacked (stacked), the bottom wall portion 3 of the bottom wall constituting portion 2 is closed. The lower supporting portion 32 projects downward from a portion on the inner peripheral side of the outer peripheral corresponding portion 31 which is a portion supported by contacting the upper side portions of the side wall portions 6 and 7. When the folding container 1 is installed on an installation surface such as a floor surface, the lower support portion 32 is supported in contact with the installation surface. Further, when the folded containers 1 in the assembled state are stacked, the outer peripheral corresponding portion 31 of the upper folded container 1 is connected to the upper sides of the side walls 6 and 7 of the lower folded container 1 (in this example, the long sides). The lower side support portion 32 of the upper folding container 1 is supported by being in contact with and supported by the top surface portion 15) of the side upper frame portion 12 and the short side upper frame portion 22 inside the lower folding container 1. And is configured to abut or approach the inner surfaces of the side walls 6 and 7 of the lower folding container 1. In the assembled state of the folding container 1, the inner surface of the long side wall 6 and the inner surface of the long side base 4 are substantially flush, and the inner surface of the short side wall 7 and the short side base The inner surface of the portion 5 is substantially flush with the inner surface, and the long side base portion 4 and the short side base portion 5 are disposed above the outer peripheral corresponding portion 31.

  As shown in FIGS. 2, 7, etc., the long side base portion 4 of the bottom wall constituting portion 2 is opened upward and inward, and the long side side hinge portion 14 of the long side wall portion 6 is opened. Is provided. Further, as shown in FIGS. 7 and 12, each short side base portion 5 has a short side opening upward and inward to pivotally support the short side hinge portion 24 of the short side wall portion 7. A side bearing 34 is provided.

  In the present embodiment, the distance between the pair of short side base portions 5 is longer than twice the vertical width of the short side wall portion 7 (short side base plate portion 21). For this reason, in a state where the pair of short side wall portions 7 are in the lying posture (the folded state of the folding container 1), the pair of short side wall portions 7 are respectively in contact with and supported by the upper surface of the bottom wall portion 3. (The pair of short side walls 7 are laid down at the same height position). In addition, the projecting length of each short side base portion 5 from the bottom wall portion 3 in the present embodiment is substantially the same as the thickness of the short side wall portion 7.

  Further, as shown in FIG. 2 and the like, the distance between the pair of long side base portions 4 is shorter than twice the vertical width of the long side wall portion 6 (long side base plate portion 11). ing. For this reason, in the folded state of the folding container 1, the pair of long side walls 6 are configured to overlap each other vertically. Further, on a portion of the short side base portion 5 on the outer side of the folding container 1, a long side wall portion which is set to be laid on the lower side of the pair of long side wall portions 6 which are set to be laid. A base-side locking wall storage portion 35 that stores the six locking walls 17 is provided. In addition, on the outer surface side of the long side wall portion 6, a locking wall 17 of the long side wall portion 6 which is in the laid posture on the upper side of the pair of long side wall portions 6 which are in the laid posture is provided. A side wall-side locking wall housing portion 36 for housing is provided. In addition, the long side wall 6 is displaced from the upright posture to the lying posture, so that the long side hinge 14 is inserted vertically into the long side bearing 33. The upper and lower long side walls 6, which are configured to be displaceable and are in the lying posture, extend substantially parallel to the bottom wall 3, respectively.

  In addition, the bottom wall component 2 includes a corner projection 37 that protrudes from both ends of the long side base 4 above the short side base 5 and is connected to the upper surface of the short side base 5. I have. In the folded state of the folding container 1, the long-side base 4 and the corner protruding portion extend to a position higher than the long-side wall 6 that is in a posture lying on the upper side of the pair of long-side walls 6. 37 protrudes.

  As shown in FIGS. 7, 12, etc., the long side wall portion 6 of the present embodiment protrudes from the long side base plate portion 11 to the outside of the folding container 1 (when in the upright posture). In addition, a vertical rib forming portion 41 having a substantially U-shaped horizontal cross section is provided on the inner side of the folding container 1. The vertical rib constituting portion 41 is a pair of side plates 42 extending outward from both side edges of the opening provided in the long side base plate portion 11, and an outer plate connecting between the front end edges of the pair of side plate portions 42. A portion 43 and a horizontal reinforcing rib 44 that connects between the pair of side plate portions 42 and the outer plate portion 43 and extends in a substantially horizontal direction are provided.

  As shown in FIG. 4 and the like, the vertical rib constituting portion 41 of the present embodiment extends from the long side upper frame portion 12 to the long side lower flange portion 13. In addition, the vertical rib constituting portions 41 are provided in the vicinity of both sides in the width direction of the long side wall 6, respectively, and are provided one by one on the left and right of the center in the width direction of the long side wall 6. Further, as shown in FIGS. 11, 12, and 14, the boundary between the side plate portion 42 of the vertical rib constituting portion 41 and the long side base plate portion 11 has a substantially arc-shaped cross section. As shown in FIG. 7, the formation position of the vertical rib configuration portion 41 near both sides of the long side wall portion 6 and the formation position of the vertical rib configuration portion 41 near the center of the long side wall portion 6 are shown. , Two long side hinge portions 14 are arranged. Further, in the present embodiment, the longitudinal rib constituting portion 41 is provided below both ends of the long side upper frame portion 12 in the formation range of the fitting concave portion 16.

  In addition, as shown in FIG. 12 and the like, the horizontal reinforcing ribs 44 are provided at a plurality of locations at predetermined intervals vertically. Further, as shown in FIG. 11 and the like, each horizontal reinforcing rib 44 (the inner side of the folding container 1) is located on the outer side of the folding container 1 with respect to the inner surface of the long side base plate 11. ing. Further, a connecting portion of the horizontal reinforcing rib 44 and the side plate portion 42 of the inner side portion of the folding container 1 has a curved shape.

  As shown in FIG. 12, of the vertical rib components 41, the vertical rib components 41 provided near both sides in the width direction of the long side wall portion 6 include the upper surface of the long side lower flange portion 13, A vertical reinforcing rib 45 is provided to connect between the horizontal reinforcing rib 44 disposed at the bottom. A side portion of the vertical reinforcing rib 45 on the inner side of the folding container 1 is inclined downward and inward of the folding container 1. In addition, although not shown, the tip of the horizontal reinforcing rib 44 has a chamfered shape (a substantially semicircular cross section).

  As shown in FIG. 11, when a substantially spherical article 49 is stored in the folding container 1, the article 49 basically does not contact the horizontal reinforcing rib 44 and the vertical reinforcing rib 45 (or The article is smaller than that shown in FIG. 11 and is configured to abut a relatively wide range, even if it abuts the horizontal and vertical reinforcement ribs 44 and 45).

  As shown in FIGS. 7, 10, 14, and the like, on the outer surface side of each short side wall portion 7, there is provided an opposing plate portion 52 facing the outer surface of the short side base plate portion 21 at a predetermined distance. , An outer peripheral handle 51 provided with a connecting plate 53 that connects between the opposing plate 52 and the short-side base plate 21. As shown in FIGS. 5 and 7, the outer peripheral handle portions 51 are respectively provided near both side portions of each short side wall portion 7, and from the vicinity of the central portion in the height direction of the short side wall portion 7, the above-mentioned lock is provided. The member 26 is provided immediately below a portion where the member 26 is installed. Further, as shown in FIG. 10 and the like, the connecting plate portion 53 of each outer peripheral handle portion 51 is connected to the side portion of the opposite side plate portion 52 on the side of the short side wall portion 7, The inner space of the outer peripheral handle portion 51 surrounded by the opposing plate portion 52, the connecting plate portion 53, and the short side base plate portion 21 is open toward the center of the short side wall portion 7 in the width direction. .

  Further, the outer peripheral handle portion 51 includes a handle rib 54 that protrudes outward from the folding container 1 from an end edge of the opposite side plate portion 52 on the central side in the width direction of the short side wall portion 7. . Note that the opposing plate portion 52 of the present embodiment is located more inward than the outer surface of the short side wall portion 7 (a surface formed by an outer edge such as a rib provided on the outer surface side of the short side wall portion 7). The upper end and the lower end of the handle rib 54 are connected to a horizontally extending rib provided on the outer surface of the short side wall 7.

  On the other hand, as shown in FIG. 1 and FIG. 10, on the outer surface side of the long side wall portion 6, the outer peripheral handle portion 51 on the side in the width direction of the long side wall portion 6 is provided. In a portion including the provided height range, the portion is located on the outer side of the folding container 1 with respect to the outer surface of the long-side base plate portion 11 and extends (substantially) in parallel with the long-side base plate portion 11. A flat portion 55 is provided. In the present embodiment, the flat portion 55 is formed by the outer surface of the outer plate portion 43 of the vertical rib component portion 41 provided near the side of the long side wall portion 6 in the vertical rib component portion 41 described above. .

  Then, for example, the worker arranges the folding container 1 with the outer surface of one of the long side wall portions 6 of the pair of long side wall portions 6 facing forward, and places the folded container 1 on the pair of short side wall portions 7. The forefinger to the little finger are respectively put on the provided outer peripheral handle portion 51, and a thumb or the like is applied to the flat portion 55 of the long side wall portion 6 on the near side (the long side wall portion 6 of the flat portion 55). Of the vertical rib constituting portion 41 constituting the flat portion 55), thereby placing a finger on the side portion on the side of the center portion in the width direction. The two sides can be grasped by hand and the folding container 1 can be moved. Such holding of the folding container 1 is performed when the folding container 1 in which the articles are stored is tilted to take out the articles, or when the folding containers 1 in the assembled state are relatively high with respect to the height of the worker. It is particularly effective in raising and lowering.

  As shown in FIGS. 1 and 10, in the present embodiment, the outer peripheral corner of the folding container 1 is located on the outer side of the long side wall 6 with respect to the portion above the bottom wall constituting portion 2. It is constituted by both sides. Further, in the outer peripheral corner portion of the folding container 1, at least the range of the height of the long side wall portion 6 where the outer peripheral handle portion 51 is provided is larger than the outer peripheral corner portion of the bottom wall forming portion 2. It is located on the inner side of the folding container 1.

  That is, in the present embodiment, on the outer surface side of the long side wall portion 6, a rib or the like (including the vertical rib configuration portion 41) protruding outward from the long side base plate portion 11 is provided. The outer surface of the long side wall portion 6 is formed by the outer end portion. However, on both sides on the outer surface side of the long side wall 6, as described above, in the folded state of the folding container 1, the long side on which the posture is laid on the upper side of the pair of long side walls 6. A side wall-side locking wall housing portion 36 for housing the locking wall 17 of the side wall portion 6 is provided. When the long side wall portion 6 is in the upright posture, the side wall side locking wall housing portion 36 is opened laterally and outward, and in the assembled state of the folding container 1, at least in the vertical direction. In the range of the height where the outer peripheral handle portion 51 is provided, the side wall side locking wall housing portion 36 also extends.

  As shown in FIGS. 1, 4 and 5, the outer side of the long side wall 6 is located on the long side at a position above each of the side wall locking wall housings 36 in the standing posture. An upper auxiliary convex portion 56 protruding outward from the base plate portion 11 is provided. The lower surface of the upper auxiliary convex portion 56 is located at substantially the same height as the lower surface of the horizontal rib provided on the outer surface side of the short side wall portion 7 that partitions the space for accommodating the lock member 26. The upper auxiliary convex portion 56 ensures the strength of the lock locking portion 17c, and furthermore, puts a finger on the outer peripheral handle portion 51 and the flat portion 55 to grasp the outer peripheral corner of the folding container 1 and to fold the folding container. When lifting the first container 1, the fingertip on the outer peripheral handle portion 51 side is brought into contact with the lower surface of the horizontal rib that divides the accommodation space of the lock member 26, and at the corner of the folding container 1, The folding container 1 can be supported by contacting the lower surface of the upper auxiliary convex portion 56. Further, at the same height position as the lower surface of the upper auxiliary convex portion 56, a rib extending in the left-right direction is also connected to the side plate portion 42 of the vertical rib forming portion 41, so that a corner portion of the outer surface of the folding container 1 can be gripped. In addition, it is possible to support the folding container 1 by applying a fingertip hung on the side of the flat portion 55 to the lower surface of the rib.

  In addition, on both sides of the long side wall 6, where the rib extending outward of the folding container 1 is not formed (side wall locking wall housing 36), the thickness of the long side wall 6 is set. It has a two-layer structure in the direction (the space between the two layers is open to the side of the long side wall 6), and the strength is improved. Further, in the portion having the two-layer structure, a portion protruding outward and extending vertically is provided at a portion on the central side in the width direction of the long side wall portion 6. The upper auxiliary convex portion 56 has a shorter outward protruding length than other ribs and the like (the vertical rib constituting portion 41 and the like), and is located more inward than the outer surface of the long side wall portion 6. I have.

  As shown in FIG. 9 and the like, the bottom wall constituting portion 2 includes a bottom reinforcing portion 61 protruding downward from the outer peripheral corresponding portion 31. The bottom reinforcing portion 61 is provided along each long side portion and each short side portion of the bottom wall portion 3 at a predetermined distance from the lower support portion 32. As shown in FIGS. 6 and 7 and the like, the bottom reinforcing portion 61 provided corresponding to the short side portion of the bottom wall portion 3 is lower than the short side portion of the bottom wall portion 3 of the outer peripheral corresponding portion 31. A bottom reinforcing base portion 62 protruding downward at a position on the inner peripheral side of the wall portion 3 and extending along a short side portion of the bottom wall portion 3, and protruding outward from a lower side portion of the bottom reinforcing base portion 62. The bottom reinforcement flange 63 includes a bottom reinforcement flange 63, a bottom reinforcement base 62, and a bottom reinforcement rib 64 that connects the bottom reinforcement flange 63 and the outer peripheral corresponding part 31 and extends vertically.

  Further, as shown in FIGS. 5 and 6, in the width direction of the short side wall portion 7, a part of the formation range of the corner protrusion 37 is configured to overlap the formation range of the bottom reinforcing portion 61. ing. As shown in FIG. 9 and the like, in the present embodiment, on the lower surface of the bottom wall constituting portion 2, the corner stacking permitting portion 65 in which the bottom reinforcing portion 61 is not provided at the four corners (the corner portions of the outer peripheral corresponding portion 31). Is provided, and the bottom reinforcing portion 61 provided corresponding to the short side portion of the bottom wall portion 3 is continuous from a portion near one end portion of the short side portion of the bottom wall portion 3 to a portion near the other end portion. It extends. For this reason, as shown in FIGS. 5 and 9, the bottom reinforcing portion 61 provided corresponding to the short side of the bottom wall portion 3 is a portion of the corner projection 37 that is the long side of the short side base 5. The inner vertical side 66 extending vertically at the center in the direction extends so as to straddle in the width direction of the short side wall 7.

  In addition, as shown in FIGS. 5, 9, 10, etc., a corner rib 67 extending from both end portions of the long side base portion 4 to the outer surface of the corner projection 37 so as to surround the corner projection 37. Is provided. Among the corner ribs 67, an inner vertical portion 68 that extends vertically (extends along the inner vertical side portion 66) on the central side in the longitudinal direction of the short side base portion 5 is a bottom reinforcing portion 61. (The lower end of the inner vertical portion 68 is connected to a portion near the upper end of the bottom reinforcing rib 64).

  The outer end of the bottom reinforcing portion 61 corresponding to the short side of the bottom wall 3 (the outer surface of the bottom reinforcing portion 61) and the outer edge of the corner rib 67 (the outer surface of the corner protrusion 37) On the same virtual plane as the outer surface of the short side wall portion 7 in the upright posture and the short side portion of the bottom wall portion 3 (the portion corresponding to the short side portion of the outer peripheral surface of the bottom wall constituting portion 2). It is configured to be located substantially (to be substantially flush). The outer surface of the bottom reinforcing portion 61 corresponding to the long side portion of the bottom wall portion 3 also includes the outer surface of the long side wall portion 6 in the upright posture, and the long side portion of the bottom wall portion 3 and substantially the same surface. It is configured to be one.

  Further, as shown in FIGS. 7 and 8, the corner projection 37 has a step-like shape in which the short-side bearing 34 and the outer support 70 facing the outer surface of the short-side wall 7 in the upright posture. Is provided. More specifically, the corner protruding portion 37 of the present embodiment has a two-layer structure in the thickness direction of the short side base portion 5 at the connection portion with the long side base portion 4, while the short side In order to provide the side bearing portion 34 in the formation range of the corner protrusion 37, the upper side of the short side base portion 5 of the corner protrusion 37 on the center side of the short side of the bottom wall 3 is formed. The bottom wall 3 has a shape such that the portion on the inner peripheral side is cut away, with the shape of being extended inside the corner projection 37. The outer support portion 70 protrudes from the two-layer structure portion of the corner protrusion 37 toward the central portion in the longitudinal direction of the short side base portion 5, and the bottom wall portion 3 (the base side engagement portion of the short side base portion 5). The corner rib 67 (including the inner vertical portion 68) is provided on the outer peripheral edge of the outer support 70 on the outer surface side.

  As shown in FIG. 7 and the like, the short-side side wall portion 7 has an insertion allowable recess 71 for allowing the two-layer structure portion of the corner projection 37 to be inserted when the self-standing posture is taken. Are provided so as to penetrate in the thickness direction of the short side wall portion 7, and an insertion allowance concave portion 72 for allowing insertion of the outer support portion 70 is formed so as to depress the outer surface side of the short side wall portion 7. It is provided in. Accordingly, when the short side wall portion 7 is in the upright posture, the outer surface side (the insertion allowable concave portion 72) of the short side wall portion 7 and the corner projection 37 (the outer support portion 70) are connected to the short side. The side wall portions 7 are opposed (contact or approach) in the thickness direction.

  As shown in FIG. 13, when the folding containers 1 are stacked in an assembled state, the bottom reinforcing portion 61 (see FIG. 9) of the upper folding container 1 is connected to the long side wall of the lower folding container 1. 6 and the short side wall 7 (the long side upper frame 12 and the short side upper frame 22) are inserted into fitting recesses 16 (see FIG. 1) provided in the upper side of the frame (see FIG. 1). (Substantially fit). In the present embodiment, the bottom reinforcing portion 61 corresponds to a fitting portion, and the fitting concave portion 16 corresponds to a fitted portion.

  In addition, as described above, the fitting concave portion 16 includes a portion near the one end in the longitudinal direction and a portion near the other end in the upper side of the long side upper frame portion 12 and the short side upper frame portion 22. And at a portion on the outer side of the folding container 1. For this reason, as shown in FIG. 1 and the like, of the long side upper frame portion 12 and the short side upper frame portion 22, the top surface portion 15 where the fitting concave portion 16 is not formed is formed. Each of the long side walls 6 and the short side walls 7 extends continuously from one end to the other end in the longitudinal direction of the upper side. Further, in the assembled state of the folding container 1, the top surface portion 15 of the long side wall portion 6 and the top surface portion 15 of the short side wall portion 7 are at the same height position. As a result, the top surface portion 15 constituting the uppermost portion of the folded container 1 in the assembled state is continuous over the entire periphery of the upper side portion of the long side wall portion 6 and the short side wall portion 7 at the same height position. (Extends in a substantially rectangular frame shape).

  Moreover, as shown in FIG. 1 and the like, the top surface portion 15 includes a wide portion 81 at a corner portion of the folding container 1. That is, as described above, the fitting concave portion 16 is not formed in the vicinity of both ends of the long side upper frame portion 12 and the short side upper frame portion 22, and the long side wall portion 6, The entire short side wall portion 7 in the thickness direction is the top surface portion 15. For this reason, the top surface portion 15 (hereinafter, also referred to as “wide component 82”) in the vicinity of both ends of the long side upper frame portion 12 and the short side upper frame portion 22 is connected to the long side upper frame portion 12. And, the width is wider than the top surface portion 15 at the intermediate position in the longitudinal direction of the short side upper frame portion 22, and in the assembled state of the folding container 1, the wide component portion 82 of the long side wall portion 6 and the short side wall portion The wide part 82 of the part 7 is adjacent to the wide part 81 so that the wide part 81 is provided at the corner of the folding container 1. As shown in FIG. 13, when the folded containers 1 in the assembled state are stacked, the wide portion 81 of the lower folded container 1 has four corners on the lower surface of the bottom wall component 2 of the upper folded container 1. It is adapted to be inserted into the provided corner stacking permitting portion 65.

  In addition, as shown in FIG. 5 and the like, the lower surface of the bottom reinforcing portion 61 and the lower surface of the lower support portion 32 are provided at the same height position. For this reason, when the folding container 1 is installed on an installation surface such as a floor, both the lower support 32 and the bottom reinforcing portion 61 are grounded to the installation surface. As shown in FIG. 14, in the stacked state of the folded containers 1 in the assembled state, the top surface portion 15 of the lower folded container 1 has the lower support portion 32 of the upper folded container 1 and the bottom reinforcing portion 32. The portion 61 is dressed between the inside and the outside.

  In addition, since the lower surface of the bottom reinforcing portion 61 is the same height as the lower surface of the lower support portion 32, when the folded containers 1 in a folded state are stacked, the long side of the lower folded container 1 is long. Although the bottom reinforcing portion 61 of the upper folding container 1 abuts against the upper surface of the base portion 4 and is supported, the lower support portion 32 of the upper folding container 1 is a pair of long sides of the lower folding container 1. It is not inserted into the space between the side bases 4. In this regard, as shown in FIG. 2 and the like, in the present embodiment, both end portions of each long-side base portion 4 and the corner projections 37 protrude above the general portion of the long-side base portion 4. When the protruding portions are stacked in the folded state, the corner steps provided at the four corners of the lower surface of the bottom wall component 2 of the upper folding container 1 It is adapted to be substantially fitted to the stacking permitting portion 65. Thus, the stacked state of the folded containers 1 in the folded state can be stabilized.

  Further, in the present embodiment, the longitudinal width of the folding container 1 is twice the short width, and the thickness of the long side wall 6 and the thickness of the short side wall 7 are the same, The width of the fitting recess 16 of the long side upper frame 12 in the thickness direction of the long side wall 6 and the width of the fitting recess 16 of the short side upper frame 22 in the thickness direction of the short side wall 7. The thickness of the bottom reinforcing portion 61 corresponding to the long side of the bottom wall 3 is the same as the thickness of the bottom reinforcing portion 61 corresponding to the short side of the bottom wall 3. Further, as shown in FIG. 9, on the lower surface side of the bottom wall constituting portion 2, a bottom reinforcing portion 61 corresponding to a long side of the bottom wall portion 3 in a central portion in a longitudinal width direction, and a lower support portion A center stacking allowable portion 83 is provided as an allowable portion in which 32 is omitted.

  For this reason, in the present embodiment, as shown in FIG. 13, not only can the folded containers 1 in the assembled state be vertically stacked in the same direction, but also, as shown in FIG. It is configured to be vertically stackable in a direction rotated horizontally by degrees, and as shown in FIGS. 16 to 20, the folding containers 1 can be stacked vertically in the same direction while shifting the position in the horizontal direction. . When the folding containers 1 are stacked so as to straddle the two folding containers 1 installed side by side in the assembled state, the lower two folding containers 1 are placed on the center stacking permissible portion 83 of the upper folding container 1. The upper sides (top surfaces 15) of the side walls 6, 7 of the container 1 are inserted.

  As described in detail above, according to the present embodiment, the uppermost portion of the folding container 1 is formed at the upper side portion of the long side wall portion 6 and the upper side portion of the short side wall portion 7 and at the same height position. A top surface portion 15 extending continuously over the entire periphery of the upper side portion of the long side wall portion 6 and the short side wall portion 7 is provided. For this reason, for example, when the transport units in the form in which the folded containers 1 in the assembled state are placed on a pallet are vertically stacked, all of the upper sides of the side walls 6 and 7 of the folded containers 1 of the lower transport unit are stacked. The pallet of the upper transport unit can be supported around the circumference. For this reason, for example, compared with a configuration in which the top surface portion 15 is provided only intermittently in the circumferential direction of the upper side portions of the side wall portions 6 and 7, the load of the upper transport unit is reduced by the upper side portions of the side wall portions 6 and 7. It can be dispersed and supported all around. Therefore, in the stacked state of the transport units, it is possible to suppress deformation, damage, and the like of the upper sides of the side walls 6 and 7 or the portion of the pallet that contacts the upper sides of the side walls 6 and 7. As a result, it is possible to stabilize the stacked state of the transport unit. Furthermore, since the fitting concave portion 16 is provided on the upper side portion of the long side wall portion 6 and the short side side wall portion 7 adjacent to the top surface portion 15, the folding container 1 in the assembled state is provided. It is possible to sufficiently stabilize the stacked state.

  Further, the top surface portion 15 has a wide portion 81 at a relatively strong corner portion of the folding container 1. Therefore, the load from above can be more positively supported at the corner. Therefore, it is possible to suppress partial deformation (a portion having relatively low strength) of the folding container 1 in the stacked state of the transport unit, and to stabilize the stacked state.

  Further, the long side wall portion 6 and the short side wall portion 7 each include a wide configuration portion 82 that constitutes a part of the wide portion 81. When the folding container 1 is assembled, the long side wall portion 6 is formed. The wide component 82 of the short side wall 7 is adjacent to the wide component 82 of the short side wall 7. For this reason, in the upper sides of the side walls 6 and 7 of the folded container 1 in the assembled state, the portions where the long side wall 6 and the short side wall 7 are adjacent to each other form wide components 82. Therefore, the top surface 15 of the long side wall 6 and the top surface 15 of the short side wall 7 come into contact with each other at the time of assembling / folding the folding container 1 or carrying the container in a stacked state. , Damage can be suppressed. Further, in the assembled state of the folding container 1, the top surface portion 15 of the long side wall portion 6 and the top surface portion 15 of the short side wall portion 7 abut in a relatively wide range with each other in the wide component portion 82, and suitably abut. Therefore, the displacement between the long side wall 6 and the short side wall 7 is more reliably suppressed, and the assembled state of the folding container 1 can be stabilized.

  In addition, the lower surface of the bottom reinforcing portion 61 is provided at the same height position as the lower surface of the lower support portion 32. For this reason, when the folding container 1 is installed on the installation surface, both the lower support portion 32 and the bottom reinforcing portion 61 are in contact with the installation surface, so that the lower support portion 32 and the bottom reinforcement portion 61 cooperate. The folding container 1 can work to support the folding container 1, and the deformation and the like of the bottom wall constituting portion 2 can be suppressed. In the stacked state of the folding containers 1, the portion of the lower folding container 1 where the top surface portion 15 is formed is moved inward and outward by the lower support portion 32 of the upper folding container 1 and the bottom reinforcing portion 61. It looks like a pinch. Therefore, stabilization of the stacked state of the folding containers 1 and the like can be further achieved.

  Further, in the present embodiment, not only can the folding containers 1 be stacked vertically vertically in the same direction, but also the folding containers 1 can be stacked vertically in the same direction while shifting the position in the horizontal direction. It is configured to be able to be stacked up and down in a direction in which the 1s are rotated horizontally by 90 degrees. For this reason, various stacking methods can be selected according to the application, the installation space, and the like, and the convenience and versatility can be improved.

  Furthermore, when the folding containers 1 are stacked so as to straddle the two folding containers 1 in the assembled state, which are installed side by side, the bottom wall reinforcing portion 61 (and the lower supporting portion 32) is provided on the bottom wall constituting portion 2. A center stacking permitting portion 83 that allows the top surface portion 15 of the lower folding container 1 to be disposed therebetween is provided therebetween. Therefore, while avoiding interference between the top surface portion 15 of the lower folding container 1 and the bottom reinforcing portion 61 of the upper folding container 1, the bottom reinforcing portion 61 of the upper folding container 1 and the lower folding container 1 Can be fitted to the fitting recess 16. Further, since the bottom reinforcing portions 61 are arranged on both sides of the center stacking permissible portion 83, the relative displacement between the upper folding container 1 and the lower folding container 1 in the horizontal direction can be more reliably ensured. Can be prevented, and the stacking state of the folding containers 1 can be stabilized.

  In the present embodiment, the long side wall 6 protrudes outward from the long container 1 from the long base plate 11 and opens substantially inward in the inside of the folding container 1. It has a vertical rib configuration portion 41 in a shape. The vertical rib constituting portion 41 is a pair of side plates 42 extending outward from both side edges of the opening provided in the long side base plate portion 11, and an outer plate connecting between the front end edges of the pair of side plate portions 42. A portion 43 and a horizontal reinforcing rib 44 that connects between the pair of side plate portions 42 and the outer plate portion 43 and extends in a substantially horizontal direction are provided. For this reason, for example, in a state where the folding container 1 is assembled, when a compressive load is vertically applied to the long side base plate portion 11 on the long side wall portion 6, the folding container of the long side base plate portion 11 is used. Deformation that bulges inward of 1 can be suppressed not only by the pair of side plates 42 of the vertical rib component 41 but also by the outer plate 43 of the vertical rib component 41. In other words, the outer plate 43 can suppress a situation in which the side plate 42 is also displaced inward following the deformation of the long side base plate 11 to the inward side of the folding container 1, In particular, the outer plate portion 43 has a smaller compressive load acting than the long side base plate portion 11, or the outer plate portion 43 is deformed so as to bulge outward from the folding container 1 with respect to the outer plate portion 43. When a force is acting, such an effect is more remarkably exhibited.

  Further, the provision of the horizontal reinforcing ribs 44 inside the vertical rib component 41 can increase the rigidity of the vertical rib component 41 and further suppress the change in shape of the vertical rib component 41. Therefore, the deformation of the long side wall portion 6 can be more reliably suppressed, and as a result, the stacked state of the folding containers 1 can be stabilized.

  The horizontal reinforcing ribs 44 are located on the outer side of the folding container 1 with respect to the inner surface of the long side base plate portion 11. For this reason, it is possible to suppress a situation in which the article 49 accommodated in the folding container 1 comes into contact with the horizontal reinforcing rib 44 and the article or the horizontal reinforcing rib 44 is damaged. In particular, when the articles stored in the folding container 1 are softer and more easily damaged than the folding container 1 (for example, fruits, etc.), the articles may be damaged by contacting the horizontal reinforcing ribs 44 or the like. The effect of deterring is more pronounced.

  Furthermore, since the boundary between the side plate portion 42 of the vertical rib constituting portion 41 and the long-side base plate portion 11 has a substantially arc-shaped cross-section, the articles accommodated in the folding container 1 with respect to the boundary portion. In the case where the contact is made, it is possible to suppress a situation in which the article or the boundary portion is damaged or the like. In addition, since the connecting portion between the horizontal reinforcing ribs 44 and the side plate portion 42 of the inner side of the folding container 1 has a curved shape, the strength of the vertical rib constituting portion 41 can be further increased. it can. In addition, even if the connecting portion of the horizontal reinforcing ribs 44 and the curved inner side portion 42 of the inner side portion of the folding container 1 is close to the inner surface of the long side base plate portion 11, the folding container 1 still has If the article 49 to be stored is not angular (relatively round), the situation where the article 49 is in contact with the horizontal reinforcing ribs 44 and the article 49 is damaged is suppressed (see FIG. 11).

  In addition, the vertical rib constituting portion 41 provided near both sides of the long side wall portion 6 is a vertical reinforcing rib connecting the lowermost horizontal reinforcing rib 44 and the long side lower flange portion 13. The vertical reinforcement rib 45 has a side portion on the inner side of the folding container 1 which is inclined downward toward the inner side of the folding container 1. By providing the vertical reinforcing ribs 45 in this manner, the strength of the vertical rib constituting portion 41 can be further increased. Furthermore, if the articles stored in the folding container 1 are not angular (relatively round), it is possible to prevent the articles from being in contact with the vertical reinforcing ribs 45 to damage the articles.

  In addition, the tip of the horizontal reinforcing rib 44 has a substantially arc-shaped cross section. For this reason, when the article stored in the folding container 1 comes into contact with the tip of the horizontal reinforcing rib 44, it is possible to suppress a situation in which the article or the tip is damaged.

  In the present embodiment, on the outer surface side of the pair of short side wall portions 7, an opposing plate portion 52 facing the outer surface of the short side base plate portion 21 at a predetermined distance, and an opposing plate portion 52. And a connecting plate portion 53 for connecting between the base plate portion 21 and the short side base plate portion 21. Further, the inner space of the outer peripheral handle portion 51 surrounded by the opposed plate portion 52, the connecting plate portion 53, and the short side base plate portion 21 is opened toward the center of the short side wall portion 7 in the width direction. ing. For this reason, the worker arranges the folding container 1 with the outer surface of one long side wall portion 6 of the pair of long side wall portions 6 facing the front, and the outer surface of the pair of short side wall portions 7. The fore finger to the little finger are respectively applied to the sides of the container, and the thumb is applied to the outer surface of the long side wall portion 6 on the near side, so that the two corner portions on the near side among the outer corners of the folding container 1 are removed. When the folding container 1 is moved (tilted / raised / lowered) by grasping it with both hands, the fingertips of the forefinger to the little finger are hooked on the outer peripheral holding portion 51 provided on the outer surface side of the short side wall portion 7. Can be. Accordingly, it is possible to improve the workability of gripping and displacing the outer peripheral portion of the folding container 1 (the outer peripheral corner portion of the folding container 1).

  Further, the outer peripheral handle portion 51 includes a handle rib 54 that protrudes outward from the folding container 1 from an end edge of the opposite side plate portion 52 on the central side in the width direction of the short side wall portion 7. . Accordingly, the outer handle portion 51 can be reinforced. Further, the area where the fingertip can be hung (applied) on the outer periphery holding portion 51 can be increased. Accordingly, it becomes easier to apply a force to the outer peripheral handle portion 51, and it is possible to reduce a local load on the fingertip.

  In addition, in the present embodiment, the outer peripheral corners of the folding container 1 in the range of the height where the outer peripheral handle portion 51 is provided are constituted by both outer side portions of the long side wall portion 6. In the outer peripheral corner portion (long side wall portion 6) of the container 1, at least the range of the height at which the outer peripheral handle portion 51 is provided is smaller than the outer peripheral corner portion of the bottom wall forming portion 2 in the folding container 1. It is constituted so that it may be located inside. For this reason, when the outer peripheral corner of the folding container 1 is grasped by hand, the finger hung on the outer peripheral handle 51 of the short side wall 7 and the finger applied to the outer surface of the long side wall 6 It is possible to suppress a situation in which an intermediate portion (for example, a palm or the like) interferes with a corner portion on the outer periphery of the folding container 1 and makes it difficult to hold the folding container 1. Therefore, for example, at the outer peripheral corner of the folding container 1, the long side base plate 11 extends from the side of the long side base plate 11 to the same position as the top of the outer peripheral corner of the bottom wall component 2. Compared to the case where a vertical rib extending obliquely to the outer surface is provided, when the palm of a hand gripping the outer corner of the folding container 1 is applied to the outer periphery of the folding container 1, a local load on the palm or the like is reduced. In addition to being able to relax, the corner portion on the outer periphery of the folding container 1 can be suitably grasped, for example, by increasing the contact area.

  In addition, on the outer surface side of the long side wall 6, at least a part of the range of the height in which the outer periphery handle 51 is provided on the side in the width direction of the long side wall 6. In the above, the flat portion 55 (outside of the vertical rib forming portion 41 in this example) is located on the outer side of the folding container 1 with respect to the outer surface of the long side base plate portion 11 and extends in parallel with the long side base plate portion 11. (Configured by the outer surface of the outer plate portion 43). Therefore, when the outer peripheral corner of the folding container 1 is grasped by hand, the fingertip can be firmly applied to the outer surface of the long side wall 6 also on the long side wall 6 side. Therefore, it is possible to reduce a local load on a fingertip, a palm, or the like that hits the long side wall 6 side, and it is possible to suitably grip the outer corner of the folding container 1 by increasing a contact area. Furthermore, since the flat portion 55 is located outside the long side base plate portion 11, a fingertip can be hung on the side portion of the flat portion 55, and the outer side of the long side wall portion 6. Even when the vertical ribs are provided on the side of the long side wall portion 6 with respect to the flat portion 55 (the vertical rib configuration portion 41), the fingertip can be suitably applied to the flat portion 55.

  Further, in this embodiment, at both ends of the long side base portion 4, a corner projection 37 projecting above the short side base portion 5 and connected to the upper side portion of the short side base portion 5, and a bottom wall A bottom reinforcing portion 61 protruding downward from the outer peripheral corresponding portion 31 of the component portion 2 is provided. Then, in the width direction of the short side wall 7, a part of the formation range of the corner protrusion 37 (the portion of the short side wall 7 at the center in the width direction) overlaps with the formation range of the bottom reinforcing portion 61. It is configured to be. That is, when the short side wall portion 7 and the short side base portion 5 are viewed from the front in the assembled state of the folding container 1, the bottom reinforcing portion 61 exists below a part of the corner protrusion 37. It is configured to be. Then, in the outer peripheral corresponding portion 31 of the bottom wall constituting portion 2, a portion where the bottom reinforcing portion 61 is provided has higher rigidity and is less likely to be deformed than a portion where the bottom reinforcing portion 61 is not provided. Therefore, at least a part of the corner protrusion 37 protruding from the long side base portion 4 is vertically disposed (connected) to the bottom reinforcing portion 61 via the short side base portion 5 and the like. Even when the long side base portion 4 receives a load from above, a force is applied to the long side base portion 4 to deform the outer side of the folding container 1 on the long side base portion 4, Outer deformation of the base portion 4 can be more reliably suppressed. As a result, the stacking state of the folding containers 1 can be stabilized.

  In the present embodiment, in the folded state of the folding container 1, the long side wall portions 6 are vertically overlapped with each other, and the long side base portion 4 is higher than the non-overlapping structure, and is easily deformed. It is concerned. In such a configuration, by providing the corner projecting portion 37 and the bottom reinforcing portion 61 as described above, the deformation of the long side base portion 4 is suppressed, and the stabilization of the stacked state is achieved. Is more pronounced.

  In addition, a corner rib 67 is provided extending from both ends of the long side base portion 4 to the outer surface of the corner projection 37 so as to surround the corner projection 37. Therefore, the strength and rigidity of the corner protrusion 37 can be increased, and the connection between the corner protrusion 37 and the long side base 4 can be further strengthened. Therefore, even when the thickness of the corner protrusion 37 is reduced (to be a single plate shape instead of a double wall structure), the required strength of the corner protrusion 37 can be ensured.

  Further, the bottom reinforcing portion 61 includes a bottom reinforcing rib 64 extending vertically, and among the corner ribs 67, an inner vertical portion 68, which is a vertically extending portion of the short side base portion 5 at the center in the longitudinal direction, is formed. The bottom reinforcement rib 64 is substantially continuous vertically (the lower end of the inner vertical portion 68 is connected to a portion near the upper end of the bottom reinforcement rib 64). For this reason, the connection state between the corner protrusion 37 and the bottom reinforcing portion 61 (bottom reinforcing rib 64) can be further strengthened, and by providing the bottom reinforcing portion 61, the long side base 4 can be formed. The operation and effect of preventing the deformation to the outside are further enhanced. In particular, since the lower end of the bottom reinforcing rib 64 is connected to the bottom reinforcing flange 63, the rigidity and the like of the bottom reinforcing portion 61 can be further increased, and the deformation of the long side base portion 4 is prevented. The operation and effect described above are further achieved.

  In addition, the outer end (outer surface) of the bottom reinforcing portion 61 and the outer end (outer surface) of the corner projection 37 are formed on the outer surface of the short side wall 7 in the upright posture and the bottom wall 3. The short side portion (the portion on the short side portion side of the outer peripheral surface of the bottom wall forming portion 2) is located substantially on the same virtual plane (substantially flush). For this reason, the bottom reinforcing portion 61 is provided at a position including the outer edge of the outer peripheral corresponding portion 31 of the bottom wall constituting portion 2, and the rigidity of the portion including the outer edge of the outer peripheral corresponding portion 31 is increased. Therefore, for example, even when a force is applied to both ends of the corner protrusion 37 and the long side base 4 to displace and deform the folding container 1 on the short side wall 7 side. In addition, the provision of the bottom reinforcing portion 61 can reliably suppress the occurrence. Furthermore, since the corner protrusion 37 is also disposed above the bottom reinforcement 61 in the thickness direction of the short side base 5, the connection state between the corner protrusion 37 and the bottom reinforcement 61 is strong. Things. Therefore, the strength and rigidity of the corner protrusion 37 and the bottom reinforcement 61 can be improved.

  In addition, the bottom reinforcing portion 61 is configured such that, of the corner protrusions 37, the inner vertical side portion 66 extending vertically at the center portion in the longitudinal direction of the short side base portion 5 is formed in the width direction of the short side wall portion 7. It extends so as to straddle it. For this reason, the rigidity of the bottom reinforcement 61 is further increased by extending the bottom reinforcement 61 from the position below the corner protrusion 37 to the center in the longitudinal direction of the short-side base 5, and the long side is improved. The effect of suppressing the outward displacement of the base portion 4 is further enhanced. In particular, in the present embodiment, the bottom reinforcing portion 61 provided along the short side of the bottom wall portion 3 is arranged such that the bottom reinforcing portion 61 moves from a position below one corner protrusion 37 of the pair of long side base portions 4 to the other. It is provided continuously below the corner projection 37. For this reason, the strength of the bottom wall portion 3 is improved, and the rigidity of the bottom portion reinforcing portion 61 is further increased. As a result, the outward displacement of the long side base portion 4 is more reliably prevented. be able to.

  Further, each corner projection 37 is provided with a dual-purpose part 69 in which the short-side bearing part 34 and the outer support part 70 facing the outer surface of the short-side wall part 7 in the upright posture are arranged in a step shape. ing. For this reason, the short side bearing portion 34 is provided as close to the corner of the bottom wall forming portion 2 as possible (the short side hinge portion 24 of the short side wall portion 7 is located near the side portion of the short side wall portion 7). Provided), and the connection state of the short side wall portion 7 with the short side base portion 5 can be made more preferable. Further, the outer support portion 70 can restrict the outward displacement of the short side wall portion 7 in the standing posture, and the displacement of the outer support portion 70 (the corner protrusion 37) is controlled by the bottom reinforcing portion. By 61, it is suppressed as described above. In addition, by providing the corner projection 37 with a plurality of functions, the folding container 1 can be made compact and lightweight.

  It should be noted that the present invention is not limited to the content described in the above embodiment, and may be implemented as follows, for example. Of course, other application examples and modifications not illustrated below are naturally possible.

  (A) In the above embodiment, the long side wall portion 6 and the short side wall portion 7 are connected to the bottom wall constituting portion 2 so as to be rotatable and displaceable. 6, and when changing the posture between the standing posture and the lying posture for one or both of the short side wall portions 7, the long side wall portion 6 and the short side wall portion 7 may be configured to be removed from the bottom wall forming section 2 (to be removed once and the posture is changed).

  In addition, the folding container 1 of the above embodiment is configured such that the pair of long side walls 6 vertically overlap each other in the folded state, but may be applied to a folding container having a non-overlapping configuration. Further, in a folded state, the present invention can be applied to a folding container in which a pair of short side wall portions 7 vertically overlap each other. In addition, the long side wall portion 6 and the short side wall portion 7 can be embodied as a container (unfoldable) integrally formed with the bottom wall constituting portion 2.

  Further, in the above embodiment, the long side base portion 4 is higher than the short side base portion 5, and in the folded state of the folding container 1, the long side side wall portion 7 is placed above the short side side wall portion 7 in the laid posture. Although the portion 6 is configured to be in the laid posture, the short side base portion 5 is higher than the long side base portion 4, and the long side in the folded state of the folding container 1 in the folded state of the folding container 1. The short side wall portion 7 may be configured to be in the lying posture above the side wall portion 6. When this configuration is adopted, in the assembled state of the folding container 1, the long side wall portion 6 is configured to be erected between the side portions of the pair of short side wall portions 7, and the short side wall portion is formed. 7 will be provided with locking walls on both sides.

  In addition, in the above embodiment, the bottom wall component 2 may have a pallet shape. That is, the bottom wall constituting portion includes a plurality of pillar portions and an upper deck portion connecting between upper end portions of the pillar portions, and a fork insertion portion into which a fork such as a forklift can be inserted between the plurality of pillar portions. You may comprise so that it may have.

  (B) In the above-described embodiment, the vertical rib configuration portion 41 is provided on the long side wall portion 6, but instead of or in addition to this configuration, the vertical rib configuration portion 41 is provided on the short side wall portion 7. May be provided. Further, the formation position, the number, the size, and the like of the vertical rib constituting portions 41 are not particularly limited, and can be appropriately changed. However, it is desirable that the vertical rib constituting portion 41 is provided near the corner of the folding container 1 (near both sides in the width direction of each long side wall portion 6).

  In the above-described embodiment, the boundary between the side plate 42 of the longitudinal rib component 41 and the long-side base plate 11 has a substantially arc-shaped cross section. It may be a simple shape. Furthermore, the boundary between the inner side of the horizontal reinforcing rib 44 of the folding container 1 and the side plate portion 42 has a curved shape, but the inner side of the horizontal reinforcing rib 44 of the folding container 1 is curved. May be configured to extend linearly and to be connected to the side plate portion 42. In addition, the tip of the horizontal reinforcing rib 44 has a substantially arc-shaped cross section (not shown), but may have a shape such as a flat chamfer.

  Further, the number and arrangement of the horizontal reinforcing ribs 44 are not particularly limited, and can be appropriately changed. It is also possible to provide a vertically extending reinforcing rib (at a position above the vertical reinforcing rib 45) so as to connect the vertically opposed horizontal reinforcing ribs 44. Further, the vertical reinforcing rib 45 can be omitted. In addition, although not specifically mentioned in the above embodiment, the inner edges of the vertical container ribs 45 and the long side lower flange portion 13 (the portion corresponding to the vertical rib configuration portion 41) on the inward side of the folding container 1 have a cross section. It may have a substantially arc shape. Note that the vertical rib constituting portion 41 can be omitted.

  (C) In the above embodiment, the outer peripheral handle 51 is provided on the short side wall 7, but instead of or in addition to such a configuration, the outer peripheral handle 51 is provided on the long side wall 6. May be provided. Further, the formation position, the number, the size, and the like of the outer peripheral handle portion 51 are not particularly limited, but which long side wall portion 6 of the pair of long side wall portions 6 is closer to the front side. It is possible to provide the outer peripheral handle portions 51 near both sides of each short side wall portion 7 so that a fingertip can be hung on the outer peripheral handle portion 51 and the outer peripheral corner of the folding container 1 can be grasped. desirable. Further, in the above-described embodiment, the outer peripheral handle portion 51 is provided (from above the central portion in the height direction of the short side wall portion 7) to a portion where the lock member 26 is installed (above the short side wall portion 7). However, it may be provided in substantially the entire area of the short side wall 7 in the height direction, or may be provided only below the short side wall 7.

  Further, in the above embodiment, the inner space of the outer peripheral handle portion 51 is also opened to the side of the short side wall portion 7 in the lateral width direction (the opposed plate portion 52 and the connecting plate portion 53 are substantially in cross section). (T-shaped). Further, the handle rib 54 of the outer handle portion 51 can be omitted. Note that the outer handle portion 51 may be omitted.

  In addition, the method of displacing the folding container 1 by, for example, hanging a finger on the outer handle portion 51 is not particularly limited, and the thumb is hooked on the outer handle portion 51, and the forefinger to the little finger are placed on the long side. By contacting the outer side of the side wall 6, it is possible to grasp the outer peripheral corner of the folding container 1 by hand, or to pull the folding container 1 by putting a finger only on the outer holding portion 51. Furthermore, when the short side wall 7 is displaced to the upright posture side by placing a finger on the outer periphery holding portion 51 of the short side wall 7 in the lying posture, or when the short side wall 7 is brought to the lying posture. It is also possible to support the short side wall portion 7 by hanging a finger on the outer peripheral handle portion 51.

  Further, in the above embodiment, when the outer peripheral corner of the folding container 1 is grasped by hand, the index finger to the little finger are hung on the outer peripheral handle 51 of the short side wall 7 and the thumb (and a part of the palm). Is brought into contact with the outer surface (flat portion 55) of the outer plate portion 43 of the longitudinal rib forming portion 41 of the long side wall portion 6 (hanging on the end portion of the flat portion 55). Alternatively, the present invention can be embodied in a folding container in which the flat portion 55 located outside the long-side base plate portion 11 does not exist at a position where the thumb can abut. Furthermore, the formation range of the flat portion 55 in the up-down direction may be provided at least in a part of the height range where the outer peripheral handle portion 51 is provided. However, it is desirable that the flat portion 55 be provided at least over the entire height range where the outer handle portion 51 is provided so as to be able to cope with differences in physique and individual differences in holding style. In addition, a portion near the side of the outer surface of the long side wall 6 may be entirely a flat portion. Further, the flat portion 55 may extend slightly inclining outward toward the side portion in the width direction of the long side wall portion 6. In this case, when the outer peripheral corner of the folding container 1 is grasped by hand, even if a fingertip or the like cannot be hung on the side end of the flat portion 55, the long side wall portion of the finger applied to the flat portion 55 6 can be improved on the outer surface side.

  In the above-described embodiment, both sides on the outer surface side of the long side wall 6 that constitutes the corner (top) of the outer periphery of the folding container 1 are the bottom wall in the same height range as the outer periphery handle 51. It is configured so as to be located on the inner side of the folding container 1 with respect to the corner portion on the outer periphery of the component portion 2 (in the same height range as the outer peripheral handle portion 51, the side wall side locking wall accommodating portion 36 is provided. ) May extend to almost the same position as the outer periphery of the bottom wall forming portion 2. However, in order to suppress a situation in which a vertical rib provided at a corner (top) of the outer periphery of the folding container 1 bites into the palm of a hand gripping the outer corner of the folding container 1, the outer periphery of the folding container 1 is suppressed. In the corner portion (top portion), the vertical rib on the outer surface side of the long side wall portion 6 is omitted, or the length of the vertical rib protruding outward is relatively short, so that the corner portion on the outer periphery of the folding container 1 is formed. Is desirably configured so that the palm of the hand that grasps the folding container 1 can be brought into contact with the folding container 1 at a plurality of locations with substantially the same force.

  (D) In the above embodiment, the formation range of the bottom reinforcing portion 61 is not particularly limited. For example, in the width direction of the short side wall 7, the entire formation range of the corner protrusion 37 is the bottom portion. It may be configured so as to overlap the formation range of the reinforcing portion 61 or may not overlap at all.

  The shape of the corner projection 37 is not particularly limited. For example, the corner rib 67 provided on the outer surface side of the corner projection 37 is omitted, and the corner projection 37 is replaced with the short-side base portion. 5 may have a two-layer structure in the thickness direction. Further, the dual-purpose part 69 can be omitted. Note that ribs extending vertically and horizontally may be provided on the inner peripheral side of the corner rib 67.

  Further, in the longitudinal direction of the short side base portion 5, the position of the inner vertical portion 68 of the corner rib 67 and the position of the bottom reinforcing rib 64 may be shifted. The effect of preventing the deformation of the long-side base portion 4 via the corner protrusion 37 by the reinforcing portion 61 is more reliably achieved. Note that, in the bottom reinforcing portion 61, a rib that extends to the left and right crossing the bottom reinforcing rib 64 may be provided.

  (E) In the above embodiment, the fitting recess 16 is provided on the outer side of the folding container 1 with respect to the top surface portion 15 at the upper side of the side wall portions 6 and 7. May be provided on the inward side. Further, in the above embodiment, in the assembled state of the folding container 1, the top surface portion 15 is provided continuously over the entire periphery of the upper side portions of the side wall portions 6 and 7 without any gap, but a slight gap is formed. You may. The "small gap" is intended to mean that the upper folding container 1 (such as a rib on the lower surface) is not inserted into the small gap regardless of the stacked state of the folding container 1. . As described above, even in the configuration in which a slight gap is formed in the top surface portion 15, the top surface portion 15 constituting the uppermost portion of the folded container 1 in the assembled state at the upper side portions of the side wall portions 6 and 7 has the same height position. This is intended to be included in the configuration extending continuously over the entire periphery of the upper side portions of the side wall portions 6 and 7.

  In addition, in the above embodiment, the top surface 15 of the long side wall 6 and the top 15 of the short side wall 7 are at the same height in the assembled state of the folding container 1. In order to cause a slight difference in height (to be substantially the same height) (for example, the top surface portion 15 of the long side wall portion 6 is about 1 mm higher than the top surface portion 15 of the short side wall portion 7). It may be configured. As described above, even in a configuration in which the top surface portion 15 of the long side wall portion 6 and the top surface portion 15 of the short side wall portion 7 are slightly different in height, the assembled state of the upper side portions of the side wall portions 6 and 7 is also considered. Is included in a configuration in which the top surface portion 15 that constitutes the uppermost portion of the folding container 1 extends continuously over the entire periphery of the upper side portions of the side wall portions 6 and 7 at the same height position. Further, the position of the wide portion 81 is not particularly limited, and can be appropriately changed. For example, a fitting recess may be provided in a corner portion of the upper side portions of the side wall portions 6 and 7, and the other portion may be configured to be a wide portion.

  (F) In the above embodiment, the folding container 1 is made of polypropylene, but may be made of other resin materials such as polyethylene, PET, and polyamide.

  DESCRIPTION OF SYMBOLS 1 ... Foldable container, 2 ... Bottom wall constituent part, 3 ... Bottom wall part, 4 ... Long side base part, 5 ... Short side base part, 6 ... Long side wall part, 7 ... Short side wall part, 12: long side upper frame portion, 15: top surface portion, 16: fitting concave portion, 17: locking wall, 31: outer peripheral corresponding portion, 32: lower support portion, 61: bottom reinforcing portion, 81: wide portion, 82 ... wide component, 83 ... center stacking allowed part.

Claims (5)

A bottom wall component having a substantially rectangular shape in plan view,
A side wall extending upward along each side of the bottom wall component,
The upper side of the side wall portion constitutes the uppermost portion of the container, and a top surface portion extending continuously over the entire circumference of the upper side portion of the side wall portion at the same height is provided.
A fitted portion into which a fitting portion provided on the lower surface side of the bottom wall constituting portion of the upper container is inserted when the containers are stacked up and down adjacent to the top surface portion is provided. A container characterized by the above-mentioned.   The said top surface part is provided with the wide part in the corner part of a container, The container of Claim 1 characterized by the above-mentioned. The fitted portion is located on an outer side of the container than the top surface portion,
When the containers are stacked one on top of the other, the bottom wall component protrudes downward from a portion on the inner peripheral side relative to the outer peripheral corresponding portion which is supported in contact with the upper side of the side wall of the lower container. With lower support,
The fitting portion projects downward from the outer peripheral corresponding portion at a predetermined distance from the lower support portion,
The container according to claim 1, wherein a lower surface of the lower support portion and a lower surface of the fitting portion are provided at the same height position. The top surface portion includes a wide portion at a corner portion of the container,
The side wall portion includes a pair of opposing first side walls, and a pair of opposing second side walls disposed between side portions of the pair of first side walls.
The first side wall portion and the second side wall portion are in an upright posture standing upright along a side edge of the bottom wall configuration portion, and are laid on a central portion side of the bottom wall configuration portion. The posture can be changed between the posture and
In an assembling state in which all the side walls are in the upright posture, and in a container capable of changing the state to a folded state in which all the side walls are in the lying posture,
The first side wall portion and the second side wall portion each include a wide configuration portion forming a part of the wide portion,
The said wide structure part of the said 1st side wall part and the said wide structure part of a said 2nd side wall part are comprised so that the said 1st side wall part may be adjacent in the said assembly state. A container according to claim 1. Containers can be stacked vertically vertically in the same direction, and containers can be stacked vertically in the same direction, displaced in the horizontal direction, and vertically stacked in a direction in which the containers are rotated horizontally by 90 degrees. It is configured to be stackable,
When stacking containers so as to straddle two containers placed side by side, the bottom wall component allows the top surface of the lower container to be arranged between the fitting portions. The container according to any one of claims 1 to 4, further comprising an allowance portion.

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