Container

Abstract

To provide a container that can be used as a plurality of forms, and can stabilize an attached condition of a lid body in each form.SOLUTION: A container 1 comprises an exterior member 2 which is provided with a square frame-shaped exterior side wall part 12 and opens upward, an interior member 3 which is provided with a square frame-shaped interior short side sidewall part 22 and interior long side sidewall part 23 and opens upward and can be stored in the exterior member 2, and a lid body 4 covered on an upper part of the exterior member 2 and the interior member 3. The container can be in a first form in which the lid body 4 is covered over the exterior member 2 storing the interior member 3 and the interior member 3 and in a second form in which the lid body 4 is covered over the exterior member 2 not storing the interior member 3. The lid body 4 includes a lid body regulation part 41 which abuts on or approximates to an inner surface of the exterior side wall part 12 when the container 1 is in the second form. The interior member 3 includes a receiving part 42 constituted so that the lid body regulation part 41 is inserted therein when the container 1 is in the first form, and permitting the lid body regulation part 41 to abut on or approximate to the inner surface of the exterior side wall part 12.SELECTED DRAWING: Figure 10

Description

[Technical Field]

[0001] The present invention relates to a container including an exterior member, an interior member that can be housed in the exterior member, and a lid that is placed over the exterior member and the interior member. [Background technology]

[0002] Conventionally, a container has been known that includes an exterior member in the shape of a rectangular frame that opens upward, an interior member in the shape of a rectangular box that also opens upward and can be housed in the exterior member, and a lid that fits inside the interior member to close the opening of the interior member (see, for example, Patent Document 1, etc.). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Publication No. 7-242246 Summary of the Invention [Problem to be solved by the invention]

[0004] Incidentally, it is desirable to improve the versatility of containers by enabling the container to be used, transported, etc., even in a state in which the interior member is removed from the exterior member and a lid is placed on the exterior member. However, in the container described in Patent Document 1, the interior member is set to a size that takes into account tolerances to match the size of the exterior member, and the lid is set to a size that takes into account tolerances to match the size of the interior member. For this reason, when the lid is placed directly on the exterior member, the dimensional difference between the lid and the exterior member becomes relatively large, which raises concerns that the state in which the lid is attached to the exterior member will be unstable (there will be relatively large rattles), etc.

[0005] The present invention has been made to solve the problems exemplified above, and its object is to provide a container that is equipped with an exterior member, an interior member, and a lid, and can be used in multiple configurations, and that can stabilize the attachment state of the lid in each configuration. [Means for solving the problem]

[0006] The following describes each means suitable for achieving the above objects, etc., by item. Note that, as necessary, the effects and advantages specific to the corresponding means will be added.

[0007] Means 1: An exterior member having a frame-shaped exterior side wall portion and opening at least upward; an interior member having a frame-shaped interior side wall portion that is open at least upward and can be housed in the exterior member; The container further includes a cover that is placed on the exterior member and the interior member, A container configured to be capable of assuming a first configuration in which the exterior member and the interior member are accommodated and the lid is placed over the interior member, and a second configuration in which the exterior member and the lid is placed over the interior member when the interior member is not accommodated, the lid includes a lid regulating portion that faces and abuts against or is close to the inner surface of the exterior side wall portion when the lid is in the second configuration, When the lid restricting portion abuts against the inner surface of the exterior side wall portion, the relative displacement of the lid with respect to the exterior member in a first direction is restricted, The interior member is configured to allow the lid body regulating portion to be inserted when the interior member is in the first form, and is provided with a receiving portion that allows the lid body regulating portion to abut against or come close to the inner surface of the exterior side wall portion.

[0008] According to the first aspect, by providing the receiving portion on the interior member, even when the container is in the first configuration, the lid restricting portion of the lid can directly abut against the inner surface of the exterior sidewall of the exterior member via the receiving portion, thereby restricting the relative displacement of the lid in the first direction relative to the exterior member. Therefore, even when the container is configured to be usable in both the first and second configurations, the dimensions of the lid (particularly the arrangement of the lid restricting portion, which is a configuration for stabilizing the attached state when placed on the exterior member) can be formed to match the dimensions of the exterior member rather than the interior member. Therefore, for example, when the dimensions of the lid are set to match an interior member whose dimensions take tolerance into account, placing the lid on the exterior member can eliminate concerns that the gap between the lid restricting portion and the exterior sidewall of the exterior member will be too large, resulting in an unstable attachment of the lid to the exterior member (relatively large rattle). As a result, the container can be used in multiple configurations while stabilizing the attached state of the lid in each configuration.

[0009] Means 2. The container described in Means 1, characterized in that the receiving portion has a horizontally opposing portion that faces the lid body regulating portion in a second direction that is horizontally perpendicular to the first direction when in the first form, and a vertically opposing portion that faces the underside of the lid body regulating portion in a vertical direction when in the first form.

[0010] According to Means 2, even if the interior member displaces upward relative to the exterior member and the lid when the container of the first form is transported, the vertically opposing portion of the interior member can abut against the underside of the lid regulating portion to prevent further displacement (jumping). Also, even if the interior member displaces relative to the exterior member and the lid in the second direction when the container of the first form is transported, the horizontally opposing portion of the interior member can abut against the side surface of the lid regulating portion to prevent further displacement.

[0011] Means 3. A plurality of the lid body regulating portions and the receiving portions are provided, The interior member has the interior side wall portion in a rectangular frame shape, The receiving portion includes end receiving portions provided at or near both side ends of a predetermined interior side wall portion, The container according to means 1 or 2, characterized in that the lid body regulating portion has an end lid body regulating portion that can be inserted into the end receiving portion.

[0012] According to means 3, by providing at least the receiving portion at or near both side ends of the interior side wall portion that are relatively resistant to deformation when an external force is applied (providing an end receiving portion), in the first form of the container, it is possible to stabilize the state in which the lid body regulating portion (end lid body regulating portion) is inserted into the receiving portion (end receiving portion) (preventing falling off without increasing the size of the lid body regulating portion in the first direction).

[0013] Means 4. The interior member includes an interior side fitting portion provided between the end receiving portions in the predetermined interior side wall portion, the lid body includes a lid-side fitting portion that is fitted with the interior-side fitting portion when the lid body is in the first configuration, The container described in means 3 is characterized in that in the first form, the gap in the second direction formed between the lid side fitting portion and the interior side fitting portion is narrower than the gap in the second direction formed between the end lid body regulating portion and the end receiving portion.

[0014] According to Means 4, the interior fitting portion is provided at a position relatively close to the center of the interior side wall portion, where distortion is unlikely to occur (the effect of tolerances is small) during molding of the interior member (made of synthetic resin), and in the first form of the container, the gap (clearance) formed between the interior fitting portion and the lid side fitting portion is made smaller than the gap (clearance) formed between the end receiving portion and the end lid body restricting portion. Therefore, the interior fitting portion and the lid side fitting portion more reliably suppress rattle between the interior member and the lid body in the second direction, and it is possible to prevent a situation in which the interior fitting portion and the lid side fitting portion become difficult to fit together or do not fit together at all due to manufacturing errors, etc.

[0015] Means 5. The exterior member has the exterior side wall portions in a rectangular frame shape, and has side wall recesses that are recessed downward at the upper edges of a pair of opposing exterior side wall portions, the interior member includes an extension portion that is disposed above the exterior side wall portion on which the side wall recess of the exterior member is provided when the interior member is housed in the exterior member, the extension portion includes an extension-side fitting convex portion that is inserted into the sidewall concave portion when the interior member is housed in the exterior member, A container as described in means 1 or 2, characterized in that when the interior member is housed in the exterior member, a finger hook portion is provided between the underside of the extended side fitting convex portion and the side wall concave portion, into which a fingertip can be inserted.

[0016] According to Means 5, when removing an interior member housed in an exterior member, it is possible to hook a fingertip on the underside of the extension-side fitting convex portion of the extension portion of the interior member and lift it up, thereby improving workability, etc. Also, by providing the extension-side fitting convex portion at a portion of the extension portion where a fingertip is hooked when attaching or detaching the interior member to or from the exterior member, it is possible to increase the strength and rigidity of that portion, and the interior member can be carried more stably.

[0017] Means 6. The interior member has the interior side wall portion in a square frame shape, The exterior member has the exterior side wall portion in a rectangular frame shape, the interior member includes extension portions that are disposed above the pair of opposing exterior side wall portions of the exterior member when the interior member is housed in the exterior member, the extension portion is not provided at a position corresponding to a corner portion of the exterior member when the interior member is housed in the exterior member, and is configured to expose an upper surface of the corner portion of the exterior member upward, The container described in means 1 or 2 is characterized in that the lid body is located above at least a portion of the upper surface of the outer casing member that corresponds to a corner portion of the outer casing member, and has a lid body abutment portion that abuts or is close to that portion.

[0018] For example, when containers of the first embodiment are stacked one on top of the other (stacked), a relatively large load acts near the corners of the exterior member. In this regard, according to Measure 6, by configuring the extensions of the interior member so that they are not provided in positions corresponding to the corners of the exterior member, the load on the extensions can be minimized, preventing damage. Instead, the lid abutment portion of the lid is provided so that it abuts against or is close to the upper surface of the corners of the exterior member. This ensures that the exterior member can bear the load applied to the corners of the lid, preventing damage to the corners of the lid. Furthermore, for example, in a configuration in which the extensions of the interior member are supported on the upper surface of the exterior member (the upper edge of the exterior side wall), it is possible to prevent the load of the interior member (items contained in the interior member) of a specific container from being applied to the corners of the exterior member of the specific container.

[0019] Means 7. The exterior member comprises an outer wall portion facing the outer surface of the exterior side wall portion at a predetermined distance, a side wall connecting portion protruding outward from the exterior side wall portion and at least a portion of which is connected to the exterior wall portion, and a lower connecting portion connecting the lower portions of a pair of the side wall connecting portions arranged opposite each other, the exterior member includes an engaged portion provided above the lower connecting portion so as to connect the pair of side wall connecting portions, the lid body includes an engaging piece that is engaged with the engaged portion in the first configuration and the second configuration, In the first and second forms, the container described in means 1 or 2 is characterized in that a finger insertion space is provided between the engaged portion and the lower connecting portion so that the fingertips can be inserted and placed on the underside of the engaging piece that is engaged with the engaged portion.

[0020] According to Means 7, by providing the engaging piece and the engaged part, it is possible to stabilize the state in which the lid is placed on the exterior member (attached state). Furthermore, by providing the finger insertion space, it is possible to improve the workability when removing the lid from the exterior member. Furthermore, the engaged part is provided in a location with relatively high rigidity, which further stabilizes the state in which the lid is attached to the exterior member and improves the durability of the engaged part. In addition, even if a part of the outer wall part is omitted to provide the finger insertion space, the peripheral part of the finger insertion space is surrounded by a pair of side wall connecting parts, the engaged part, and the lower connecting part, so it is possible to prevent a decrease in the strength and rigidity of the peripheral part of the finger insertion space. [Brief explanation of the drawings]

[0021] [Figure 1] FIG. 2 is a perspective view showing a container in the first embodiment. [Figure 2] FIG. 2 is a perspective view showing the exterior member in a state in which the interior member is housed. [Figure 3] FIG. 2 is a perspective view showing the upper surface side of the exterior member. [Figure 4] FIG. 2 is a perspective view showing the underside of the exterior member. [Figure 5] FIG. 2 is a perspective view showing the upper surface side of the interior member. [Figure 6] FIG. 4 is a partially enlarged perspective view showing the periphery of a receiving portion of an interior member. [Figure 7] FIG. 2 is a perspective view showing the lower surface side of the interior member. [Figure 8] FIG. 2 is a perspective view showing the underside of the lid body. [Figure 9] FIG. 4 is a partially enlarged perspective view showing the periphery of a corner portion on the underside of the lid body. [Figure 10] FIG. 2 is a partially enlarged perspective view including a partial cross section showing the container in the first form. [Figure 11] 11 is an enlarged cross-sectional view of a portion taken along line AA in FIG. 10, showing the container in the first form. [Figure 12] 11 is an enlarged cross-sectional view of a portion taken along line BB in FIG. 10, showing the container in the first form. [Figure 13]FIG. 10 is a partially enlarged perspective view of an interior member according to a second embodiment. [Figure 14] FIG. [Figure 15] FIG. 2 is a partially enlarged cross-sectional view of the container in the first form. [Figure 16] FIG. 10 is a perspective view of a container according to a third embodiment. [Figure 17] FIG. 4 is a partially enlarged perspective view showing the periphery of a sidewall recess of the exterior member. [Figure 18] FIG. 10 is a partially enlarged perspective view showing the periphery of an extension-side fitting protrusion of the interior member. [Figure 19] FIG. 4 is a partially enlarged perspective view showing the periphery of an engaged portion of the exterior member. [Figure 20] FIG. 10 is a partially enlarged perspective view showing the periphery of an engagement piece of the lid body. [Figure 21] 17 is an enlarged cross-sectional view of a portion taken along line CC in FIG. 16, showing the container in the first form. [Figure 22] FIG. 17 is an enlarged cross-sectional view of a portion taken along line DD in FIG. 16, showing the container in the first form. DETAILED DESCRIPTION OF THE INVENTION

[0022] (First embodiment) An embodiment will be described below with reference to FIGS. 1 to 12. As shown in FIGS. 1, 2, 3, and 5, the container 1 includes an exterior member 2 having a generally rectangular box shape that opens upward, an interior member 3 that is also generally rectangular and opens upward and can be housed in the exterior member 2, and a lid 4 that covers the exterior member 2 and the interior member 3. In this embodiment, the longitudinal width direction of the exterior member 2 and the longitudinal width direction of the interior member 3 are aligned so that one interior member 3 fits exactly into one exterior member 2 (so that the outer surface of a bulging portion 26 (described later) of the interior member 3 faces and abuts or is close to the inner surface of an exterior side wall portion 12 (described later) of the exterior member 2). The container 1 of this embodiment is configured to be capable of assuming two configurations: a first configuration in which the lid 4 covers the exterior member 2 and the interior member 3 in a state in which the interior member 3 is housed therein, and a second configuration in which the lid 4 covers the exterior member 2 in a state in which the interior member 3 is not housed therein. The exterior member 2, the interior member 3, and the lid 4 are each integrally formed from polypropylene.

[0023] 3 and 4, the exterior member 2 includes an exterior bottom wall portion 11 that is rectangular in plan view, and exterior side wall portions 12 that extend upward from each side edge of the exterior bottom wall portion 11. The exterior member 2 also includes an upper flange portion 13 that protrudes outward from the upper edge of the exterior side wall portion 12, an outer wall portion 14 that protrudes downward from the outer edge of the upper flange portion 13, and a side wall reinforcing rib 15 that protrudes outward from the exterior side wall portion 12, extends in the vertical direction, and has at least a portion connected to the outer wall portion 14. The exterior side wall portion 12 extends upward at a slight incline outward from the exterior member 2 (see FIG. 12).

[0024] 4 and other figures, the lower edges of the sidewall reinforcing ribs 15 are basically at the same height as the lower edge of the outer wall portion 14, while the sidewall reinforcing ribs 15 (hereinafter also referred to as "corner reinforcement ribs 16") arranged at each corner of the exterior member 2 extend below the lower edge of the outer wall portion 14. The exterior bottom wall portion 11 has a rectangular plate shape and includes an exterior bottom plate portion 11a whose upper surface forms the inner bottom surface of the exterior member 2, and an exterior grounding portion 11b that protrudes downward from the exterior bottom plate portion 11a in a lattice pattern and comes into contact with an installation surface such as a floor when the exterior member 2 is placed on that surface.

[0025] 5 and 7, the interior member 3 includes an interior bottom wall portion 21 that is generally rectangular in plan view, interior short-side sidewall portions 22 that extend upward from each of the short sides of the interior bottom wall portion 21, and interior long-side sidewall portions 23 that extend upward from each of the long sides of the interior bottom wall portion 21. Furthermore, the interior member 3 includes extending portions 24 that protrude outward from the upper portions of the interior short-side sidewall portions 22. The extending portions 24 include an extending base portion 24a that protrudes outward from the upper sides of the interior short-side sidewall portions 22, an edge protrusion portion 24b that protrudes downward from the outer edge of the extending base portion 24a, and an extending reinforcing rib 24c that connects the edge protrusion portion 24b and the interior short-side sidewall portions 22. 2 and other figures, when the interior member 3 is housed in the exterior member 2, the extension portion 24 is located above the upper flange portion 13 of the exterior member 2, and the lower edge portions of the edge protrusion 24b and the extending reinforcing rib 24c are configured to abut against the upper surface of the upper flange portion 13. On the other hand, with respect to the interior long-side sidewall portion 23 on which the extension portion 24 is not provided, when the interior member 3 is housed in the exterior member 2, the upper edge portion of the interior long-side sidewall portion 23 is located lower than the upper edge portion of the exterior sidewall portion 12 (this makes it possible to position a positioning protrusion 35 of the lid 4, which will be described later, above the interior long-side sidewall portion 23 inside the exterior member 2: see FIG. 22).

[0026] 5 and other figures, bulging portions 26 are provided at each corner of the interior member 3, where the portions of the interior short-side sidewall portions 22 and the interior long-side sidewall portions 23 corresponding to the corner portions bulge outward from the interior member 3 relative to other portions. In this embodiment, the interior short-side sidewall portions 22 and the interior long-side sidewall portions 23 are slightly inclined upward toward the outside of the interior member 3, with the angle of inclination at the bulging portions 26 being the same as the angle of inclination of the exterior sidewall portions 12 of the exterior member 2, and the angle of inclination at other portions being closer to the vertical direction than the angle of inclination of the exterior sidewall portions 12 of the exterior member 2 (see FIG. 12).

[0027] 7 and other drawings, the interior bottom wall portion 21 has a rectangular plate shape and includes an interior bottom plate portion 21a whose upper surface forms the inner bottom surface of the interior member 3, and an interior grounding portion 21b that protrudes downward from the interior bottom plate portion 21a in a lattice pattern and comes into contact with the interior member 3 when placed on an installation surface such as a floor. As shown in FIG. 12, when the interior member 3 is housed in the exterior member 2, the bottom surface of the interior member 3 (the lower surface of the interior grounding portion 21b) is configured to abut against the inner bottom surface of the exterior member 2 (the upper surface of the exterior bottom plate portion 11a). Note that in this embodiment, when the interior member 3 is housed in the exterior member 2, the lower surface of the extension portion 24 (the lower side of the edge protrusion portion 24b and the extension reinforcing rib 24c) is also configured to abut against the upper flange portion 13 of the exterior member 2, but they may be configured to be slightly spaced apart vertically.

[0028] 1 and 8, the lid body 4 includes a rectangular plate-shaped top plate portion 31, an inner frame portion 32 protruding upward from each side edge of the top plate portion 31, an upper frame portion 33 protruding outward from the upper edge of the inner frame portion 32 to the outside of the lid body 4, and an outer frame portion 34 protruding downward from the outer edge of the upper frame portion 33. In this embodiment, when the container 1 with the lid body 4 covering the exterior member 2 is viewed in plan, the exterior member 2 is configured so that the outer dimensions (the outer peripheral shape of the outer wall portion 14) and the lid body 4 (the outer peripheral shape of the outer frame portion 34) match.

[0029] 8 and 9, the lid 4 is further provided with a positioning protrusion 35 that protrudes downward from a position on the underside of the top plate 31 that is displaced a predetermined distance toward the inner periphery of the top plate 31 relative to the inner frame 32. As shown in FIG. 10, when the container 1 is in the first configuration, the portion of the positioning protrusion 35 that extends along the short side of the top plate 31 of the lid 4 is adapted to abut against or be close to the inner surface of the interior short-side side wall 22 of the interior member 3. On the other hand, the portion of the positioning protrusion 35 that extends along the long side of the top plate 31 of the lid 4 is adapted to abut against or be close to the inner surface of the exterior side wall 12 of the exterior member 2.

[0030] 9, 12, etc., the lower edge of the outer frame portion 34 of the lid body 4 is located lower than the lower surface of the top plate portion 31. Furthermore, as shown in FIG. 9, the lower edge of the positioning protrusion 35 is located lower than the lower edge of the outer frame portion 34. In addition, lid reinforcement ribs 36 that connect the inner frame portion 32 and the outer frame portion 34 are provided at multiple locations along the circumferential direction of the lid body 4. Of the lid reinforcement ribs 36, those provided at positions corresponding to the long side edges of the lid body 4 are configured so that their lower edges are at the same height (flush) as the lower edge of the outer frame portion 34 and are also connected to the positioning protrusion 35. On the other hand, of the lid reinforcement ribs 36 provided at positions corresponding to the short side edges of the lid body 4, their lower edges are configured so that their lower edges are at the same height (flush) as the lower surface of the top plate portion 31 and are not connected to the positioning protrusion 35. Instead, a reinforcing vertical rib 37 is provided on the inner surface of the portion of the outer frame 34 corresponding to the short side edge of the lid body 4, protruding toward the inner periphery of the lid body 4 and having an upper end connected to the lid reinforcing rib 36.

[0031] In addition, lid reinforcement ribs 36 are also provided at the corners of lid body 4, and like lid reinforcement ribs 36 provided at positions corresponding to the long side edges of lid body 4, the lower edges of these lid reinforcement ribs 36 are flush with the lower edge of outer frame 34 and are also connected to positioning protrusions 35. Also, as shown in Figure 2 etc., extensions 24 are not provided at positions corresponding to the corners of exterior member 2 when interior member 3 is housed in exterior member 2, but are configured so as to expose the upper surfaces of the corners (upper flanges 13) of exterior member 2 upward.

[0032] When the container 1 is in the first form, the lid reinforcement ribs 36 provided at positions corresponding to the long side edges of the lid body 4, the lower edges of the lid reinforcement ribs 36 provided at positions corresponding to the corner edges of the lid body 4, and the lower edge of the outer frame 34 abut against and are supported by the upper surface of the upper flange 13 of the exterior member 2. Hereinafter, the lid reinforcement ribs 36 provided at positions corresponding to the long side edges of the lid body 4 and the lid reinforcement ribs 36 provided at positions corresponding to the corner edges of the lid body 4 are also referred to as "lid abutment portions 38." On the other hand, the lid reinforcement ribs 36 provided at the positions corresponding to the short side edges of the lid body 4 have their lower edges positioned higher than the lid reinforcement ribs 36 provided at the positions corresponding to the long side edges of the lid body 4 and the lid reinforcement ribs 36 provided at the corner portions of the lid body 4 (compared to the shapes of the lid reinforcement ribs 36 provided at the positions corresponding to the long side edges of the lid body 4 and the lid reinforcement ribs 36 provided at the corner portions of the lid body 4, the lower edges have a shape that is cut out leaving the reinforcing vertical ribs 37, and the extension portion 24 is accommodated in this cut-out shape), so when the container 1 is in the first form, the lower edges of the lid reinforcement ribs 36 provided at the positions corresponding to the short side edges of the lid body 4 are positioned slightly above the extension portion 24 of the interior member 3. However, the reinforcing vertical rib 37 is located further outward from the outer casing member 2 than the extension portion 24, and the lower edge portion of the reinforcing vertical rib 37, together with the lower edge portion of the outer frame portion 34 and the lower edge portion of the lid body abutment portion 38, is supported by abutting against the upper surface of the upper flange portion 13 of the outer casing member 2.

[0033] As shown in FIGS. 8 to 10 , the lid 4 includes a lid restricting portion 41 that faces and abuts against or is close to the inner surface of the exterior side wall 12 when the container 1 is in the second configuration. The lid restricting portion 41 is configured as a generally U-shaped portion in bottom view that is formed by protruding a target portion of the positioning protrusion 35 that extends along the short sides of the top plate 31 of the lid 4 (in this example, a portion relatively close to each corner of the lid 4) toward the outer periphery (centrifugal direction) of the lid 4. The lid restricting portion 41 abuts against the inner surface of the exterior side wall 12, thereby restricting relative displacement of the lid 4 with respect to the exterior member 2 in a first direction (the longitudinal width direction of the exterior member 2 and the interior member 3, hereinafter also referred to as the longitudinal width direction of the container 1).

[0034] As shown in FIGS. 5 and 6 , the interior member 3 includes receiving portions 42 formed by continuously cutting out the interior short-side sidewalls 22 and the extending portions 24 (extending base portions 24a) at the boundaries between the interior short-side sidewalls 22 and the extending portions 24. The receiving portions 42 have openings that penetrate the interior member 3 in the up-down direction and inward-outward directions. In this embodiment, the receiving portions 42 are provided near both end portions of each of the interior short-side sidewalls 22. As shown in FIGS. 10 to 12 , when the container 1 is in the first configuration, the lid restricting portions 41 are configured to be inserted into the receiving portions 42, thereby allowing the lid restricting portions 41 to abut against or approach the inner surface of the exterior sidewalls 12. In this embodiment, all receiving portions 42 correspond to end receiving portions, and all lid restricting portions 41 correspond to end lid restricting portions.

[0035] 6, the receiving portion 42 has a horizontally facing portion 42a that faces the lid body restricting portion 41 in a second direction (the short-side width direction of the exterior member 2 and the interior member 3, hereinafter also referred to as the short-side width direction of the container 1) that is horizontally orthogonal to the longitudinal width direction (first direction) of the container 1 when the container 1 is in the first configuration, and a vertically facing portion 42b that faces the underside of the lid body restricting portion 41 in the vertical direction when the container 1 is in the first configuration. Note that, as shown in FIG. 7, in this embodiment, the extending reinforcement ribs 24c provided on the underside of the extension portion 24 are provided along (adjacent to) both side edges of the receiving portion 42, and receiving reinforcement ribs 42c that protrude from the interior short-side sidewall portion 22 toward the outside of the interior member 3 and have upper ends connected to the extending reinforcement ribs 24c are provided along both side edges and a lower edge of a portion of the receiving portion 42 formed in the interior short-side sidewall portion 22. This reinforces the receiving portion 42 (the horizontally facing portion 42a and the vertically facing portion 42b) and increases the area of ​​the horizontally facing portion 42a and the vertically facing portion 42b.

[0036] 11, in the first configuration of the container 1, the vertical width of the gap between the vertically opposed portion 42b and the lid restricting portion 41 is configured to be smaller than (or the same as) the vertical width of the gap between the extension portion 24 and the lid reinforcing rib 36 (top plate portion 31) provided at a portion corresponding to the short side of the lid 4. In addition, as shown in FIG. 22, in the first configuration of the container 1, the vertical width of the gap between the vertically opposed portion 42b and the lid restricting portion 41 is configured to be the same as the vertical width of the gap between the upper edge of the interior long-side sidewall portion 23 and the positioning protrusion 35 located thereover (or the gap between the vertically opposed portion 42b and the lid restricting portion 41 is smaller). Note that in the first configuration of the container 1, the portion of the bulge 26 on the interior long-side sidewall portion 23 side and the positioning protrusion 35 of the lid 4 are configured to face each other vertically (see FIGS. 15 and 22).

[0037] In addition, in this embodiment, the first and second type containers 1 are configured to be stacked (piled) one on top of the other, and when the containers 1 are stacked, the exterior bottom wall portion 11 of the exterior member 2 of the upper container 1 is inserted into the inner side of the inner frame portion 32 of the lid body 4 of the lower container 1, the outer periphery of the exterior bottom wall portion 11 and the outer periphery of the exterior side wall portion 12 of the upper container 1 abut or come close to the inner frame portion 32 of the lower container 1, and the lower edge portion of the corner reinforcement rib 16 of the exterior member 2 of the upper container 1 abuts and is supported by the upper frame portion 33 of the lid body 4 of the lower container 1. Furthermore, it is possible to stack exterior members 2 on top of each other (the lower edge portion of the corner reinforcing rib 16 of the upper exterior member 2 abuts against and is supported by the upper flange portion 13 of the lower exterior member 2), it is possible to stack interior members 3 on top of each other (a portion including the lower part of the upper interior member 3 is housed inside the lower interior member 3), and it is possible to stack lid bodies 4 on top of each other (the lid body abutment portion 38 of the upper lid body 4 abuts against and is supported by the upper frame portion 33 of the lower lid body 4 in such a manner that the positioning protrusion portion 35 of the upper lid body 4 is inserted into the inner periphery of the inner frame portion 32 of the lower lid body 4).

[0038] As described above in detail, according to the first embodiment, by providing the receiving portion 42 in the interior member 3, even when the container 1 is in the first configuration, the lid body restricting portion 41 of the lid body 4 can directly abut against the inner surface of the exterior side wall portion 12 of the exterior member 2 via the receiving portion 42, and relative displacement of the lid body 4 in the longitudinal width direction (first direction) of the container 1 with respect to the exterior member 2 is restricted. Therefore, even when the container 1 is configured to be usable in both the first configuration and the second configuration, the dimensions of the lid body 4 (particularly the arrangement of the lid body restricting portion 41, which is a configuration for stabilizing the attached state when placed over the exterior member 2) can be formed to match the dimensions of the exterior member 2 rather than the interior member 3. Therefore, for example, when the dimensions of the lid body 4 are set taking into consideration the tolerance to match the interior member 3 whose dimensions take into consideration the tolerance for the exterior member 2, placing the lid body 4 on the exterior member 2 can eliminate the concern that the gap between the lid body restricting portion 41 and the exterior side wall portion 12 of the exterior member 2 will become too large, causing the state in which the lid body 4 is attached to the exterior member 2 to become unstable (resulting in relatively large rattle).As a result, the container 1 can be used in multiple forms, and the attached state of the lid body 4 can be stabilized in each form.

[0039] Furthermore, the interior long-side sidewall 23 of the interior member 3 is configured to be lower in height than the exterior sidewall 12 when the interior member 3 is housed in the exterior member 2. When the container 1 is in the first configuration, the positioning protrusion 35 of the lid 4 is disposed above the upper edge of the interior long-side sidewall 23, and the positioning protrusion 35 and the inner surface of the exterior sidewall 12 face each other and come into contact with or close to each other. This restricts relative displacement of the lid 4 relative to the exterior member 2 in the short width direction (second direction) of the container 1. Therefore, by forming the dimensions of the lid 4 to match the dimensions of the exterior member 2, the effect of stabilizing the attached state of the lid 4 can be more reliably achieved regardless of whether the container 1 is used in the first configuration or the second configuration.

[0040] The receiving portion 42 also includes a horizontally facing portion 42a that faces the lid body restricting portion 41 in the short width direction (second direction) of the container 1, which is a direction horizontally and perpendicular to the long width direction (first direction) of the container 1 when the container 1 is in the first configuration, and a vertically facing portion 42b that faces the underside of the lid body restricting portion 41 in the vertical direction when the container 1 is in the first configuration. Furthermore, in the first configuration of the container 1, the gap between the vertically facing portion 42b and the lid body restricting portion 41 in the up-down direction is configured to be shorter than (or the same as) the gap between the extension portion 24 and the lid reinforcing rib 36 provided at a position corresponding to the short side edge portion of the lid 4. Therefore, even if the interior member 3 is displaced upward relative to the exterior member 2 and the lid 4 when the container 1 in the first configuration is transported, the vertically facing portion 42b of the interior member 3 abuts against the underside of the lid body restricting portion 41, preventing further displacement (jumping). Furthermore, in the first form of container 1, if the vertical width of the gap between vertical opposing portion 42b and lid body regulating portion 41 is the same as the vertical width of the gap between the upper edge portion of interior long side sidewall portion 23 and positioning protrusion 35 located above it, then in the event that interior member 3 is displaced upward relative to exterior member 2 and lid body 4, vertical opposing portion 42b of interior member 3 will abut against the underside of lid body regulating portion 41, and in addition, the upper edge portion of interior long side sidewall portion 23 (the portion of bulging portion 26 on the interior long side sidewall portion 23 side) will abut against positioning protrusion 35, which cooperate to prevent jumping of interior member 3 and reduce the burden on lid body regulating portion 41 (vertical opposing portion 42b).

[0041] Furthermore, the receiving portions 42 are provided near both end portions of the interior short-side sidewall portions 22, and when the container 1 is in the first configuration, the lid body restricting portions 41 are inserted into the receiving portions 42. Therefore, by providing the receiving portions 42 near both end portions of the interior short-side sidewall portions 22 that are relatively resistant to deformation when an external force is applied, it is possible to stabilize the state in which the lid body restricting portions 41 are inserted into the receiving portions 42 in the first configuration of the container 1 (preventing the lid body restricting portions 41 from falling off without increasing the size of the container 1 in the longitudinal width direction).

[0042] In addition, the extensions 24 are not provided in areas corresponding to the corners of the exterior member 2 when the interior member 3 is housed in the exterior member 2, but are configured to expose the upper surface of the corners of the exterior member 2. Furthermore, the lid 4 is located above at least areas of the upper surface of the exterior member 2 that correspond to the corners of the exterior member, and is provided with lid abutment sections 38 (lid reinforcement ribs 36 provided in correspondence with the corners of the lid 4, and lid reinforcement ribs 36 provided in areas corresponding to the long side edges of the lid 4) that abut against these areas.

[0043] For example, when containers 1 of the first embodiment are stacked one on top of the other (stacked), a relatively large load acts near the corners of the exterior member 2. In this regard, according to the present embodiment, the extensions 24 of the interior member 3 are not provided at locations corresponding to the corners of the exterior member 2, thereby minimizing the load on the extensions 24 and preventing damage. Instead, the lid abutment 38 of the lid 4 is provided so as to abut against the upper surface (upper flange 13) of the corners of the exterior member 2. This ensures that the exterior member 2 receives the load applied to the corners of the lid 4, thereby preventing damage to the corners of the lid 4. Furthermore, for example, it is possible to prevent a situation in which the load of the interior member 3 (items contained in the interior member 3) is applied to the corners of the exterior member 2 via the extensions 24 abutting the upper surface (upper flange 13) of the exterior member 2.

[0044] (Second embodiment) The second embodiment will be described below, focusing on its characteristic features, with reference to Figures 13 to 15. For convenience, the same reference numerals will be used to describe the same components as those in the first embodiment.

[0045] As shown in Fig. 13, the interior member 3 has an interior fitting portion 51 provided between a pair of receiving portions 42 (end receiving portions) in each interior short-side sidewall portion 22 (in this example, at the center in the width direction of the interior short-side sidewall portion 22). Similar to the receiving portion 42, the interior fitting portion 51 is formed by continuously cutting out the interior short-side sidewall portion 22 and the extending portion 24, and has an opening shape that penetrates in the up-down direction and inward-outward directions of the interior member 3. In contrast, as shown in Figs. 14 and 15, the lid 4 has a lid fitting portion 52 that is inserted into the interior fitting portion 51 and engaged when the container 1 is in the first configuration. Like the lid body regulating portion 41, the lid side fitting portion 52 is also composed of an approximately C-shaped portion when viewed from below, which is formed so that the target portion of the positioning protrusion 35 extending along the short side of the top plate portion 31 of the lid body 4 protrudes toward the outer periphery of the lid body 4.

[0046] 15, in the short width direction (second direction) of the container 1, the width of the receiving portion 42 is wider than the width of the interior fitting portion 51, and the width of the lid body restricting portion 41 is narrower than the width of the lid side fitting portion 52. Therefore, in the first form of the container 1, the gap W2 in the short width direction (second direction) of the container 1 formed between the lid side fitting portion 52 and the interior side fitting portion 51 is configured to be narrower than the gap W1 in the short width direction (second direction) of the container 1 formed between the lid body restricting portion 41 (end lid body restricting portion) and the receiving portion 42 (end receiving portion).

[0047] In addition, in the longitudinal width direction (first direction) of the container 1, the protrusion length from the positioning protrusion 35 of the lid body restricting portion 41 to the outer periphery of the lid body 4 is slightly larger than the protrusion length from the positioning protrusion 35 of the lid side fitting portion 52 to the outer periphery of the lid body 4. Therefore, in the first configuration of the container 1, the gap L2 in the longitudinal width direction (first direction) of the container 1 formed between the lid side fitting portion 52 and the inner surface of the exterior side wall portion 12 is wider than the gap L1 in the longitudinal width direction (first direction) of the container 1 formed between the lid body restricting portion 41 and the inner surface of the exterior side wall portion 12. Furthermore, in the first configuration of the container 1, the gap L3 formed between a general portion of the positioning protrusion 35 (a portion other than the lid body restricting portion 41 and the lid side fitting portion 52) corresponding to the short side edge portion of the lid body 4 and the interior short side side wall portion 22 is configured to be equal to or smaller than the gap L4 formed between the reinforcing vertical rib 37 and the extension portion 24. In addition, the gap L1 is configured to be narrower than the gap L3.

[0048] As described above in detail, according to the second embodiment, the interior member 3 has an interior fitting portion 51 provided in the interior short-side sidewall portion 22 at a position between the pair of receiving portions 42 (the center portion in the width direction of the interior short-side sidewall portion 22), and the lid 4 has a lid-side fitting portion 52 that fits with the interior fitting portion 51 when the container 1 is in the first configuration. Furthermore, in the first configuration of the container 1, the gap formed between the lid-side fitting portion 52 and the interior fitting portion 51 in the short width direction of the container 1 (second direction) is configured to be narrower than the gap formed between the lid restricting portion 41 and the receiving portion 42 in the short width direction of the container 1. That is, the interior fitting portion 51 is provided at a position relatively close to the center of the interior short-side sidewall portion 22, where distortion is unlikely to occur (the effect of tolerances is small) during molding of the polypropylene interior member 3, and in the first form of the container 1, the gap (clearance) formed between the interior fitting portion 51 and the lid fitting portion 52 is made smaller than the gap (clearance) formed between the receiving portion 42 and the lid body restricting portion 41. Therefore, the interior fitting portion 51 and the lid side fitting portion 52 more reliably suppress wobble between the interior member 3 and the lid body 4 in the short width direction of the container 1, and it is possible to prevent a situation in which the interior fitting portion 51 and the lid side fitting portion 52 become difficult to fit together or do not fit together at all due to manufacturing errors or the like.

[0049] (Third embodiment) The third embodiment will be described below, focusing on its characteristic features, with reference to Figures 16 to 22. For convenience, the same reference numerals will be used to describe the same components as those in the first embodiment.

[0050] As shown in Figures 17 and 21, the exterior member 2 has sidewall recesses 61 that are recessed downward at the upper edges of a pair of opposing exterior sidewalls 12 (in this example, the exterior sidewalls 12 on the shorter sides). When the interior member 3 is housed in the exterior member 2, the extension portion 24 is disposed above the exterior sidewalls 12 on which the sidewall recesses 61 are provided. Furthermore, as shown in Figures 18 and 21, the extension portion 24 has an extension-side fitting protrusion 62 that is inserted into the sidewall recess 61 when the interior member 3 is housed in the exterior member 2. In this embodiment, the extension-side fitting protrusion 62 is formed by making the extension reinforcing rib 24c and the edge protrusion 24b at the target locations of the extension portion 24 protrude downward more significantly. Furthermore, as shown in Figure 21, when the interior member 3 is housed in the exterior member 2, a finger hook portion 63 is provided between the lower surface of the extending side fitting convex portion 62 and the side wall concave portion 61 (at its lower edge), into which the fingertip can be inserted (when the lid body 4 is removed from the container 1 in the first form).

[0051] On the other hand, when the interior member 3 is housed in the exterior member 2, both side portions of the extending-side fitting convex portion 62 are configured to be close to or abut against both side edge portions of the side wall concave portion 61, and when the interior member 3 is displaced relative to the exterior member 2 in the short width direction of the container 1 and the bulge portion 26 (particularly the portion on the interior long side side wall portion 23 side) abuts against the exterior side wall portion 12, the side portion of the extending-side fitting convex portion 62 can abut against the side edge portion of the side wall concave portion 61. When the container 1 is in the first form, the clearance between the extending-side fitting convex portion 62 and the side edge of the side wall recess 61 in the short width direction of the container 1 may be configured to be smaller than the clearance between the bulge portion 26 and the exterior side wall portion 12, so that when the interior member 3 is displaced relative to the exterior member 2 in the short width direction of the container 1, the extending-side fitting convex portion 62 and the side edge of the side wall recess 61 come into contact before the bulge portion 26 and the exterior side wall portion 12 come into contact. In addition, the lower edge of the side wall recess 61 has a stepped shape (L-shaped cross section) in which the edge on the outer side of the exterior member 2 is one step lower, and a reinforcing rib is provided on the underside of the wall that forms the lower edge of the side wall recess 61 to increase its strength, so that the underside of the wall that forms the lower edge of the side wall recess 61 is configured as a handle for carrying the exterior member 2.

[0052] 16 and 19, the exterior member 2 includes a pair of left and right sidewall reinforcing ribs 15 (hereinafter also referred to as "sidewall connecting portions 64") that protrude outward (toward the exterior member 2) from positions of the exterior sidewall portions 12 on each long side near the corners of the exterior member 2, extend vertically from the underside of the upper flange portion 13 to a position below the lower edge of the outer wall portion 14, and connect the upper portions of the outer edges of the exterior member 2 to the outer wall portion 14. The upper flange portion 13 and the outer wall portion 14 are omitted between the pair of sidewall connecting portions 64. The exterior member 2 also includes a lower connecting portion 65 that connects the lower portions (lower ends in this example) of the pair of sidewall connecting portions 64, and an engaged portion 66 that is provided above the lower connecting portion 65 and connects the pair of sidewall connecting portions 64. Note that the upper surface of the engaged portion 66 is provided with a reinforcing shape.

[0053] 16 and 20, the lid 4 of this embodiment includes a first wall 67 that protrudes from the lower edge of the outer frame 34 toward the outer periphery of the lid 4, and a second wall 68 that protrudes downward from the outer edge of the first wall 67. In contrast, as shown in Figure 19, etc., an exterior stepped portion 69 that can accommodate the second wall 68 is provided on the outer surface side of the outer wall 14 of the exterior member 2 in the first and second forms of the container 1, and the lower edge (the surface facing upward) of the exterior stepped portion 69 is configured to be positioned opposite the lower edge of the second wall 68 in the vertical direction.

[0054] 20 and 22, the lid 4 has an engaging piece 70 that protrudes from the second wall portion 68 toward the inner periphery of the lid 4 and is engaged with the engaged portion 66 in the first and second forms of the container 1. In addition, in the first and second forms of the container 1, a finger insertion space 71 is provided between the engaged portion 66 and the lower connecting portion 65 so that a fingertip can be inserted and placed on the underside of the engaging piece 70 that is engaged with the engaged portion 66.

[0055] 17, the lower edge of the sidewall recess 61 is located lower than the lower edge of the exterior stepped portion 69. Furthermore, as shown in FIGS. 16 and 21, the lid 4 has a lower protrusion 72 that protrudes downward from the second wall 68 (a range including the center of the short side of the lid 4) to cover the area of ​​the sidewall recess 61 that is located lower than the lower edge of the exterior stepped portion 69 from the outside of the container 1. In addition, as shown in FIG. 16, at positions corresponding to the top of each engaged portion 66 in the first and second configurations of the container 1, band hanging recesses 73 are provided by recessing the inner frame 32, upper frame 33, and outer frame 34 downward to be flush with the upper surface of the top plate 31.

[0056] As described above in detail, according to the third embodiment, the sidewall recess 61 is provided on the upper edge portion of the exterior sidewall 12 corresponding to the short side portion of the exterior member 2, and the extension portion 24 of the interior member 3 is provided with the extension-side fitting protrusion 62 that is inserted into the sidewall recess 61 when the interior member 3 is housed in the exterior member 2. Furthermore, when the interior member 3 is housed in the exterior member 2, a finger hook 63 into which a fingertip can be inserted is provided between the underside of the extension-side fitting protrusion 62 and the sidewall recess 61. Therefore, when removing the interior member 3 housed in the exterior member 2, the user can hook the fingertip on the underside of the extension-side fitting protrusion 62 of the extension portion 24 of the interior member 3 and lift it up, thereby improving workability, etc. Furthermore, by providing the extension-side fitting protrusion 62 at a portion of the extension portion 24 where the fingertip is hooked when attaching or detaching the interior member 3 to or from the exterior member 2, the strength and rigidity of the portion can be increased, allowing the interior member 3 to be carried more stably.

[0057] Furthermore, the provision of the engaging piece 70 and the engaged portion 66 stabilizes the state in which the lid body 4 is placed on the exterior member 2 (attached state). In the first and second forms, the provision of a finger insertion space 71 allows a fingertip to be inserted between the engaged portion 66 and the lower connecting portion 65, and allows the fingertip to be placed on the underside of the engaging piece 70 engaged with the engaged portion 66, thereby improving the ease of removing the lid body 4 from the exterior member 2. Furthermore, the engaged portion 66 connects the exterior side wall portion 12 and the outer wall portion 14, and is provided so as to connect the pair of side wall connecting portions 64 whose lower ends are connected by the lower connecting portion 65. In other words, the engaged portion 66 is provided in a location with relatively high rigidity, which further stabilizes the attached state of the lid body 4 on the exterior member 2 and improves the durability of the engaged portion 66. In addition, even if the outer wall portion 14 is partially omitted to provide the finger insertion space 71, the peripheral portion of the finger insertion space 71 is surrounded by a pair of side wall connecting portions 64, the engaged portion 66, and the lower connecting portion 65, so that a decrease in the strength and rigidity of the peripheral portion of the finger insertion space 71 can be prevented.

[0058] The present invention is not limited to the above-described embodiment, and may be implemented as follows: Of course, other applications and modifications not exemplified below are also possible.

[0059] (a) In the above embodiment, the shapes, sizes, etc. of the exterior member 2, interior member 3, and lid 4 are not particularly limited and can be changed as appropriate. For example, the exterior member 2, interior member 3, and lid 4 may be circular in plan view, or one exterior member may be configured to be able to accommodate multiple interior members. Furthermore, the exterior member 2 may be configured to be able to accommodate multiple patterns of interior members. For example, in addition to accommodating the interior member 3 of the above embodiment, the exterior member 2 may be configured to be able to accommodate two interior members each having a size equivalent to dividing the interior member 3 of the above embodiment in two at the center in the longitudinal width direction. Furthermore, for example, in a configuration in which two interior members are accommodated in one exterior member 2 lined up in the longitudinal width direction of the exterior member 2, each interior member may be configured to have only one extension portion that protrudes outward from the top of one of the interior long-side sidewall portions and is arranged above the exterior sidewall portion 12 corresponding to the short side portion of the exterior member 2, or may be configured to have a pair of extension portions that protrude outward from the top of a pair of opposing interior short-side sidewall portions and are arranged above the exterior sidewall portion 12 corresponding to the long side portions of the exterior member 2.

[0060] Additionally, in the above embodiment, the exterior bottom wall portion 11 and the interior bottom wall portion 21 are provided on the exterior member 2 and the interior member 3, respectively. However, the exterior bottom wall portion 11 and the interior bottom wall portion 21 of one or both of the exterior member 2 and the interior member 3 may be omitted, and a frame-like (cylindrical) structure penetrating vertically may be formed. Furthermore, in the above embodiment, the exterior member 2, the interior member 3, and the lid 4 are made of polypropylene, but they may be made of other materials, and the materials do not have to be uniform. For example, the exterior member 2, the interior member 3, and the lid 4 may be made of polyolefin resin (polyethylene, etc.), or may be made of synthetic resin other than polyolefin (e.g., ABS resin, AES resin, acrylic resin, polycarbonate, etc.), or may be made of material other than synthetic resin (e.g., metal, paper).

[0061] (b) In the above embodiment, the positions and numbers of the lid restricting portions 41 and the receiving portions 42 are not particularly limited and can be set as appropriate. For example, instead of or in addition to providing the receiving portions 42 and the extending portions 24 corresponding to the interior short-side sidewall portions 22, the receiving portions 42 and the extending portions 24 may be provided corresponding to the interior long-side sidewall portions 23. However, even when the container 1 is in the first form, it is desirable to provide a portion of the lid abutting portion 38 that faces and abuts or is close to the upper flange portion 13 of the exterior member 2. It is more desirable to configure the lid abutting portion 38 to be able to abut at least a portion of the upper flange portion 13 that corresponds to a corner portion of the exterior member 2. In addition, it is desirable to provide the receiving portions 42 at or near both end portions of the interior short-side sidewall portions 22 (or the interior long-side sidewall portions 23 when the receiving portions 42 are provided on the interior long-side sidewall portions 23).

[0062] Although not specifically mentioned in the first embodiment, the relationship between the gap between the lid body restricting portion 41 inserted into the receiving portion 42 and the receiving portion 42, and the gap between the interior short-side side wall portion 22 and the interior long-side side wall portion 23 (bulge portion 26) of the interior member 3 housed in the exterior member 2 and the exterior side wall portion 12, in the first form of the container 1, may be configured so that the lid body restricting portion 41 and the peripheral portion of the receiving portion 42 do not come into contact no matter how the interior member 3 is displaced relative to the exterior member 2 along the horizontal direction, or may be configured so that when the interior member 3 is displaced relative to the container 1 along the short width direction, the lid body restricting portion 41 comes into contact with the horizontally opposing portion 42a of the receiving portion 42 before the bulge portion 26 (the portion on the interior long-side side wall portion 23 side) comes into contact with the exterior side wall portion 12, preventing further displacement.

[0063] Furthermore, for example, in the second embodiment, when the container 1 is in the first configuration, the lid-side fitting portion 52 may be configured to be able to face and abut against the inner surface of the exterior side wall portion 12 of the exterior member 2 via the interior-side fitting portion 51, and the lid-side fitting portion 52 and the interior-side fitting portion 51 may also serve as the lid body restricting portion 41 and the receiving portion 42. In this case, the receiving portion 42 and the lid body restricting portion 41 provided near both end portions of the interior short-side side wall portion 22 correspond to the end lid body restricting portion and the end receiving portion. Furthermore, when the container 1 is in the first configuration, the exterior member 2 may have an exterior-side fitting portion into which at least one of the interior-side fitting portion 51 and the lid-side fitting portion 52 is inserted and engaged. Furthermore, the exterior-side fitting portion may be configured by forming an opening, a recessed portion (as viewed from the inside of the exterior member 2), or a protruding portion. In addition, in either of the configurations in which the interior fitting portion 51 and the exterior fitting portion are fitted together, with the interior fitting portion 51 being a recess and the exterior fitting portion being an opening or a recess, or the configuration in which the interior fitting portion 51 is an opening and the exterior fitting portion is a protrusion, with the interior fitting portion 51 and the exterior fitting portion being fitted together, the lid fitting portion 52 and the exterior fitting portion may be configured to be directly fitted together. Also, in the second embodiment, the lid fitting portion 52 may be configured to protrude from the positioning protrusion 35 toward the outer periphery of the lid body 4 to a position where it overlaps vertically with the upper frame portion 33, and a recess may be provided in the upper flange portion 13 that is fitted together with the lid fitting portion 52. Furthermore, the exterior member 2 may be provided with a lower flange portion that protrudes outward from the exterior side wall portion 12 and that abuts against and is supported by the upper flange portion 13 of the lower container 1 when the exterior members 2 are stacked, and the lower flange portion may be provided with a fitting portion formed by forming a convex portion or a concave portion that fits with the exterior-side fitting portion when the exterior members 2 are stacked. Also, for example, the upper frame portion 33 and the inner frame portion 32 of the lid body 4 may be provided with a concave portion that fits with the lid-side fitting portion 52 of the upper lid body 4 when the lid bodies 4 are stacked, and that fits with a fitting portion provided in the lower flange portion of the upper container 1 when the first type containers 1 are stacked. Note that with regard to the configurations related to each fitting (engagement), it is possible to appropriately change which side is convex and which side is concave.In addition, for example, the exterior member 2 may have an opening or recess formed in the exterior side wall portion 12, and may be provided with an exterior side receiving portion configured by providing a portion at a position corresponding to the lid body regulating portion 41 and the receiving portion 42 that can abut against the lid body regulating portion 41 in the longitudinal width direction (first direction) of the container 1 when the container 1 is in the first form and the second form. When this configuration is adopted, the receiving portion (for example, a part of the receiving portion may be a U-shaped portion that protrudes outward from the receiving portion 42 of the above embodiment toward the outside of the interior member 3 and has an upwardly opening cross section, or the receiving portion may be a recess formed by recessing downward the portion from the outer periphery of the target portion of the extension portion 24 to the interior short side side wall portion 22) may be configured to be able to be inserted into part or (almost) the entire exterior side receiving portion (this does not hinder a configuration in which the lid body regulating portion 41 and the exterior side receiving portion can abut in the first direction), and further, the receiving portion 42 inserted into the exterior side receiving portion may abut or be close to the exterior side receiving portion in the short width direction of the container 1, or when the container 1 is in at least one of the first and second forms, the lid body regulating portion 41 inserted into the exterior side receiving portion may face but not abut on the exterior side receiving portion in the short width direction of the container 1. Furthermore, when the container 1 is in at least one of the first and second forms, it is also possible to configure the lid body regulating portion 41 inserted into the exterior side receiving portion and the exterior side receiving portion to face each other and abut or be close to each other (be able to abut) in the short width direction of the container 1.

[0064] Furthermore, in the above embodiment, the receiving portion 42 (and the interior-side fitting portion 51 in the second embodiment) has an opening shape that penetrates (opens) in the vertical direction and inward and outward directions of the interior member 3, but for example, when the distance between the interior short-side side wall portion 22 and the exterior side wall portion 12 is configured to be relatively larger than in the above embodiment when the interior member 3 is housed in the exterior member 2, an opening (a hole that penetrates vertically) formed in the extension portion 24 at a position separated from the interior short-side side wall portion 22 may serve as the receiving portion, and a protrusion that protrudes downward from the lid 4 and is inserted into the receiving portion may serve as the lid restricting portion. Also, for example, a recess formed in the extension portion 24 may be used as the receiving portion, but in this case, there is a risk that the shape of the upper flange portion 13 may become complicated, and therefore it is desirable that the receiving portion 42 has an opening shape. In addition, the interior fitting portion 51 of the second embodiment does not have to be an opening shape, but only needs to be configured to be fitted with the lid fitting portion 52 and to regulate the relative displacement between the interior member 3 and the lid body 4 in the short width direction of the container 1.

[0065] Additionally, in the first form of container 1, at least a portion of exterior side wall 12 that can come into contact with lid restricting portion 41 or its surrounding area may be formed as an uneven portion. For example, the lid restricting portion 41 may be configured to be insertable inside the uneven portion (inside a recess formed by bulging exterior side wall 12 outward from exterior member 2, or between a pair of protrusions located on both sides of lid restricting portion 41 in the first form of container 1), and lid restricting portion 41 may be configured to come into contact with or be close to the uneven portion not only in the longitudinal width direction (first direction) of container 1, which is the direction in which interior short-side side wall 22, on which extension portion 24 is provided, and exterior side wall 12 face each other, but also in the lateral width direction (second direction) of container 1, which is the direction horizontally perpendicular to said direction.

[0066] (c) In the above embodiment, in the first configuration of the container 1, the lower edge of the lid reinforcement rib 36 (lid abutment portion 38) provided corresponding to the corner portion of the lid 4 abuts against the upper flange portion 13 of the exterior member 2. However, simply making the container 1 into the first configuration may not cause the lid reinforcement rib 36 provided corresponding to the corner portion of the lid 4 to abut against the upper flange portion 13, but may cause the lid reinforcement rib 36 to abut against the upper flange portion 13 when a downward force is applied to the corner portion of the lid 4. Furthermore, in the above embodiment, the bottom surface of the interior member 3 housed in the exterior member 2 (the lower surface of the interior bottom wall portion 21) may not abut against the inner bottom surface of the exterior member 2 (the upper surface of the exterior bottom wall portion 11) (the interior member 3 is supported by the upper flange portion 13 of the exterior member 2 at the extension portion 24). In this case, it is possible to place another member (e.g., a cooling agent, a heat insulating material, etc.) between the inner bottom surface of the exterior member 2 and the bottom surface of the interior member 3. Although the extension portion 24 can be omitted, the provision of the extension portion 24 makes it easier to carry the interior member 3 alone.

[0067] Additionally, in the third embodiment, the configuration relating to the engaging piece 70 and the engaged portion 66 may be omitted. Furthermore, when adopting a configuration in which the engaging piece 70 and the engaged portion 66 are omitted in the third embodiment, the lower protrusion 72 may be omitted, and further, a lid handle may be provided by cutting out the lower edge of the second wall portion 68 of the lid 4 at a portion corresponding to the side wall recess 61. In this case, when removing the lid 4 from the container 1 of the first form, it is possible to hook the fingertips on the lid handle and lift it up, and when removing the interior member 3 and the lid 4 from the container 1 of the first form, it is possible to hook the fingertips on the underside of the extending-side fitting protrusion 62 of the interior member 3 via the lid handle and lift up the interior member 3 together with the lid 4. [Explanation of symbols]

[0068] 1...container, 2...exterior member, 3...interior member, 4...lid, 12...exterior side wall portion, 14...outer wall portion, 15...side wall reinforcing rib, 22...interior short side side wall portion, 23...interior long side side wall portion, 24...extension portion, 35...positioning protrusion portion, 36...lid reinforcing rib, 38...lid abutment portion, 41...lid regulating portion, 42...receiving portion, 42a...horizontally opposing portion, 42b...vertically opposing portion, 51...interior side fitting portion, 52...lid side fitting portion, 61...side wall recess, 62...extension side fitting protrusion portion, 63...finger hook portion, 64...side wall connecting portion, 65...lower connecting portion, 66...engaged portion, 70...engaging piece, 71...finger insertion space.

Claims

1. an exterior member having a frame-shaped exterior side wall portion and opening at least upward; an interior member having a frame-shaped interior side wall portion that is open at least upward and can be housed in the exterior member; The container further includes a cover that is placed on the exterior member and the interior member, A container configured to be capable of assuming a first configuration in which the exterior member and the interior member are covered with the lid in a state in which the interior member is accommodated, and a second configuration in which the exterior member is covered with the lid in a state in which the interior member is not accommodated, the lid includes a lid regulating portion that faces and abuts against or is close to an inner surface of the exterior side wall portion when the lid is in the second configuration, When the lid restricting portion abuts against the inner surface of the exterior side wall portion, the relative displacement of the lid with respect to the exterior member in a first direction is restricted, The interior member is configured to allow the lid body regulating portion to be inserted when the interior member is in the first form, and is provided with a receiving portion that allows the lid body regulating portion to abut against or come close to the inner surface of the exterior side wall portion.

2. The container according to claim 1, characterized in that the receiving portion has a horizontally opposing portion that faces the lid body regulating portion in a second direction that is horizontally perpendicular to the first direction when the container is in the first configuration, and a vertically opposing portion that faces the underside of the lid body regulating portion in a vertical direction when the container is in the first configuration.

3. a plurality of the lid body restricting portions and a plurality of the receiving portions are provided, The interior member has the interior side wall portion in a rectangular frame shape, The receiving portion includes end receiving portions provided at or near both side ends of a predetermined interior side wall portion, 3. The container according to claim 1, wherein the lid restricting portion includes an end lid restricting portion that can be inserted into the end receiving portion.

4. the interior member includes an interior side fitting portion provided between the end receiving portions in the predetermined interior side wall portion, the lid body includes a lid-side fitting portion that is fitted with the interior-side fitting portion when the lid body is in the first configuration, The container according to claim 3, characterized in that in the first form, the gap in the second direction formed between the lid side fitting portion and the interior side fitting portion is narrower than the gap in the second direction formed between the end lid body regulating portion and the end receiving portion.

5. the exterior member has exterior side wall portions each having a rectangular frame shape, and includes side wall recesses that are recessed downward at upper edge portions of a pair of opposing exterior side wall portions, the interior member includes an extension portion that is disposed above the exterior side wall portion on which the side wall recess of the exterior member is provided when the interior member is housed in the exterior member, the extension portion includes an extension-side fitting convex portion that is inserted into the sidewall concave portion when the interior member is housed in the exterior member, 3. The container according to claim 1, wherein a finger hook portion is provided between the lower surface of the extending side fitting convex portion and the side wall concave portion when the interior member is housed in the exterior member, allowing a fingertip to be inserted.

6. The interior member has the interior side wall portion in a rectangular frame shape, The exterior member has the exterior side wall portion in a rectangular frame shape, the interior member includes extension portions that are disposed above the pair of opposing exterior side wall portions of the exterior member when the interior member is housed in the exterior member, the extension portion is not provided at a position corresponding to a corner portion of the exterior member when the interior member is housed in the exterior member, and is configured to expose an upper surface of the corner portion of the exterior member upward, The container according to claim 1 or 2, characterized in that the lid body is located above a portion of the upper surface of the exterior member that corresponds to at least a corner portion of the exterior member, and has a lid body abutment portion that abuts or is close to that portion.

7. the exterior member includes an outer wall portion facing an outer surface of the exterior side wall portion at a predetermined distance, a side wall connecting portion protruding outward from the exterior side wall portion and at least a portion of which is connected to the exterior wall portion, and a lower connecting portion connecting lower portions of the pair of side wall connecting portions arranged opposite to each other, the exterior member includes an engaged portion provided above the lower connecting portion so as to connect the pair of side wall connecting portions, the lid body includes an engaging piece that is engaged with the engaged portion in the first configuration and the second configuration, The container according to claim 1 or 2, characterized in that in the first and second forms, a finger insertion space is provided between the engaged portion and the lower connecting portion, allowing the fingertips to be inserted and hooked on the underside of the engaging piece that is engaged with the engaged portion.

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