container

Abstract

To provide a lid body and a container that can be efficiently stored and transported.SOLUTION: A container 1 includes: a substantially box-shaped container body 2 that opens upward; and a lid body 3 that can be detachably attached to and detached from the container body 2. The lid body 3 is configured such that lid bodies 3 can be stacked vertically facing the same direction to form a lid body stacked state. The lid body 3 includes a facing portion 92 that faces the outer surface of the container body 2 when it is placed on the container body 2. The facing portion 92 is provided with a locking hole portion 103 that penetrates the facing portion 92 in the thickness direction and is locked with a locking protrusion 105 provided on the container body 2 when the lid body 3 is placed on the container body 2. The lid body 3 includes a receiving recess 110 that can receive the facing portion 92 of another lid body 3 when the lid body is stacked.SELECTED DRAWING: Figure 24

Description

[Technical Field]

[0001] The present invention relates to a container that includes a container body capable of containing an article and a lid. [Background technology]

[0002] Conventionally, a container used for transporting goods, etc., has a generally box-shaped container body that opens upward, and a lid body that is placed over the container body, and a technology exists in which a fastener is attached to the lid body, and the lid body is placed over the container body, so that the locking portion of the fastener locks with the lockable portion of the container body (see, for example, Patent Document 1, etc.). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Publication No. 9-207958 Summary of the Invention [Problem to be solved by the invention]

[0004] However, it is desired to stabilize the coating state of the container.

[0005] The present invention has been made to solve the problems exemplified above, and its purpose is to provide a container that has a container body and a lid body and that can stabilize the coating state of the container. [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. A box-shaped container body that opens upward, a lid body that covers the opening of the container body, The container body includes a side wall upper edge protrusion, The lid body is a lid body capable of closing an opening on the upper surface side of the container body; a fixing device attached to the lid body to maintain the container covered; The lid body has a mounting portion to which the fixing device is attached; a lid stopper recess formed along the outer peripheral edge of the lower surface of the lid body so as to open downward and toward the outer peripheral side of the lid body, and into which the side wall upper edge protrusion is accommodated when the container is covered; a lid auxiliary protrusion protruding downward from an edge on the outer periphery of the lower surface of the lid body, The fixture includes: a pair of left and right mounting portions attached to the lid body; a facing portion that faces the outer surface of the container body when the container is covered, The pair of left and right mounting portions are provided with protrusions that serve as substitutes for the lid auxiliary protrusions, A container characterized in that the opposing portion is provided at a location where the opposing portion serves as the lid auxiliary protrusion.

[0008] According to the first means, the covering state of the container can be stabilized, and the intrusion of dust and the like can be prevented.

[0009] Means 2: The lid body includes a lid body stacking restricting portion and a lid body stacking restricted portion, The lid bodies can be stacked in the same direction, The container described in Means 1 is characterized in that, when the lid bodies are stacked, the lid body stacking restricted portion of one of the lid bodies is inserted into the lid stopper recess of the other lid body and abuts or comes close to the lid body stacking restricting portion in the horizontal direction.

[0010] According to the second means, it is possible to restrict the relative displacement in the horizontal direction between the lid bodies stacked one above the other. [Brief explanation of the drawings]

[0011] [Figure 1] FIG. 1 is a perspective view showing the container in a covered state. [Figure 2] FIG. 2 is a perspective view showing the container in a placed state. [Figure 3] FIG. [Figure 4] FIG. 2 is a perspective view showing the container body in an assembled state. [Figure 5] FIG. 2 is a perspective view showing the container body in a folded state. [Figure 6] 10 is a perspective view showing a container body with the short-side side wall portions in an upright position and the long-side side wall portions in a folded position. FIG. [Figure 7] FIG. 2 is a perspective view showing the upper surface side of the bottom wall base component. [Figure 8] 10 is a perspective view showing the lower surface side (bottom wall internal space side) of the bottom wall base component. FIG. [Figure 9] FIG. 2 is a partially enlarged perspective view showing the lower surface side of the bottom wall base component. [Figure 10] FIG. 2 is a perspective view showing the upper surface side (bottom wall internal space side) of the bottom wall lower surface constituent part. [Figure 11] FIG. 2 is a partially enlarged perspective view showing the upper surface side of the bottom wall lower surface constituent portion. [Figure 12] FIG. 2 is a perspective view showing the lower surface side of the bottom wall lower surface constituent portion. [Figure 13] FIG. 2 is a perspective view showing the underside of the lid body. [Figure 14] FIG. 2 is a perspective view showing the outer surface side of the fixture. [Figure 15] FIG. 2 is a perspective view showing the inner surface side of the fixture. [Figure 16] FIG. 2 is a perspective view showing the underside of the fixture. [Figure 17] FIG. 4 is a partially enlarged perspective view showing the mounting portion of the lid body. [Figure 18] FIG. 4 is a partially enlarged perspective view showing the mounting portion of the lid body. [Figure 19] FIG. 10 is a partially enlarged perspective view showing the assembly accommodation portion and the peripheral portion of the operation recess of the container body (short side wall portion). [Figure 20] FIG. 10 is a partially enlarged front view showing the assembly accommodation portion and the peripheral portion of the operation recess of the container body (short side wall portion). [Figure 21] FIG. 10 is a partially enlarged front view showing the periphery of the fixing device of the container in a covered state. [Figure 22] 10 is a partially enlarged vertical cross-sectional view showing the relative positional relationship between the side wall portion on the long side of the container in the covered state and the lid body. FIG. [Figure 23] 10 is a partially enlarged vertical cross-sectional view showing a portion of the lid body including an attachment portion for a fixing tool. FIG. [Figure 24] FIG. 10 is a partially enlarged vertical cross-sectional view showing a portion of the container in a covered state, including a portion facing a fastener. [Figure 25] FIG. 25 is a partially enlarged cross-sectional view showing the upper portion of the container shown in FIG. 24. [Figure 26] 26 is a partially enlarged vertical cross-sectional view showing a portion of the container body in an assembled state, including a portion facing a fixing tool (a view of the container shown in FIG. 25 with the lid omitted). FIG. [Figure 27] FIG. 25 is a partially enlarged cross-sectional view showing the lower part of the container shown in FIG. 24. [Figure 28] FIG. 2 is a partially enlarged vertical cross-sectional view showing the container in a placed state. [Figure 29] FIG. 10 is a perspective view showing a state in which containers in a covered state and a placed state are stacked on top of each other. [Figure 30] FIG. 10 is a perspective view showing a stacked state of lid bodies in which lid bodies are stacked upside down. [Figure 31] FIG. 10 is a perspective view including a partial cross section of the lid bodies stacked in layers. [Figure 32] FIG. 10 is a partially enlarged vertical cross-sectional view of the lid bodies stacked in layers. [Figure 33] FIG. 10 is a partially enlarged vertical cross-sectional view of the lid bodies stacked in layers. [Figure 34] FIG. 10 is a partially enlarged horizontal cross-sectional view of the lid bodies stacked in layers. DETAILED DESCRIPTION OF THE INVENTION

[0012] An embodiment will be described below with reference to the drawings. As shown in Figures 1, 3, 4, etc., a container 1 includes a container body 2 having a generally rectangular box shape that opens upward, and a lid 3 that is removably fitted over the container body 2. The container body 2 includes a bottom wall component 4 that includes a bottom wall 5 that is generally rectangular in plan view, short-side base portions 6 that protrude upward from the bottom wall 5 along each of the short sides of the bottom wall 5, and long-side base portions 7 that protrude upward from the bottom wall 5 along each of the long sides of the bottom wall 5. The container body 2 also includes short-side side wall portions 8 and long-side side wall portions 9 that are rotatably connected to the short-side base portions 6 and the long-side base portions 7, respectively. The short-side side walls 8 and the long-side side walls 9 are configured to be movable between an upright position in which they stand above the corresponding short-side bases 6 and long-side bases 7, as shown in Fig. 4, and a folded position in which they are folded above (towards the center) the bottom wall 5, as shown in Fig. 5. Therefore, when storing items in the container 1, all of the short-side side walls 8 and the long-side side walls 9 are in an upright position (see Fig. 4), and when storing the container 1, all of the short-side side walls 8 and the long-side side walls 9 are in a folded position (see Fig. 5), thereby enabling space saving, etc. In addition, the container 1 as a whole, including the lid 3, is configured to be movable between a covered position (see Fig. 1) in which the lid 3 is placed on the assembled container body 2, and a placed position (see Fig. 2) in which the lid 3 is placed on the folded container body 2.

[0013] 3 and other figures, the protrusion length of the short-side base portion 6 from the bottom wall portion 5 is longer than the protrusion length of the long-side base portion 7 from the bottom wall portion 5, and the formation position of the short-side bearing portion 41 for rotatably supporting the short-side sidewall portion 8 is also located higher than the formation position of the long-side bearing portion 51 for rotatably supporting the long-side sidewall portion 9. Furthermore, as shown in FIG. 4 and other figures, the lateral width of the short-side sidewall portion 8 is configured to be approximately the same as the transverse width of the bottom wall component 4, and the lateral width of the long-side sidewall portion 9 is configured to be approximately the same as the distance between the pair of short-side base portions 6. Therefore, in this embodiment, when the assembled container body 2 is folded, as shown in FIG. 6, the pair of long-side sidewall portions 9 are first displaced to the folded position by overlapping them over the bottom wall portion 5, and then the short-side sidewall portion 8 is displaced to the folded position by overlapping them over the long-side sidewall portion 9.

[0014] As shown in Figures 3, 24, etc., the short side side wall portion 8 includes a short side base constituent portion 11 that constitutes most of the short side side wall portion 8, including its outer portion, and a short side inner surface constituent portion 12 that forms a short side internal space 13 (see Figure 24) between the short side base constituent portion 11 and the inner surface of the short side base constituent portion 11. The short side base constituent portion 11 and the short side inner surface constituent portion 12 are made of polypropylene. The short side internal space 13 is provided with a heat insulating member 14 made of foamed polyurethane. The short side side wall portion 8 also includes a pair of short side shaft protrusions 15 (see Figure 3) that protrude laterally from the lower part of the left and right side portions, respectively.

[0015] As shown in Figures 3, 22, etc., the long side side wall portion 9 includes a long side base constituent portion 21 that constitutes most of the long side side wall portion 9, including its outer portion, and a long side inner surface constituent portion 22 that forms a long side internal space 23 (see Figure 22) between itself and the inner surface of the long side base constituent portion 21. The long side base constituent portion 21 and the long side inner surface constituent portion 22 are made of polypropylene. The long side internal space 23 is provided with a heat insulating member 14 made of foamed polyurethane. The long side side wall portion 9 also includes a pair of long side shaft protrusions 25 (see Figure 3) that protrude laterally from the lower part of each of the left and right side portions.

[0016] 3 and 6, restricting walls 16 are provided that protrude inward from both sides of the inner surface of the short-side side wall 8 into the container body 2. The restricting walls 16 are configured to overlap the outer surfaces of the long-side side wall 9 in the inward-outward direction of the container 1 when the container body 2 is assembled. Furthermore, the restricting walls 16 are provided with insertion holes 17 that penetrate the short-side side wall 8 in the width direction.

[0017] In contrast, both sides on the outer surface of the long-side side wall 9 are provided with regulated wall portions 26 that substantially abut against the regulating wall portions 16 of the short-side side wall portions 8 when the container body 2 is in an assembled state, and insertion protrusions 27 that protrude from the regulated wall portions 26 to the outside of the container body 2. When the container body 2 is in an assembled state, the outer surfaces of the regulated wall portions 26 substantially abut against the regulating wall portions 16, both sides of the long-side side wall portions 9 substantially abut against the inner surfaces of the short-side side wall portions 8, and the insertion protrusions 27 are inserted into the insertion holes 17 to establish a locked state. Note that, as will be described in detail later, by placing the lid 3 on the container body 2, displacement of the long-side side wall portions 9 toward the folded posture is restricted.

[0018] 3, 24, etc., the bottom wall constituent part 4 includes a bottom wall base constituent part 31 as a second member that constitutes most of the bottom wall constituent part 4, including the upper portion thereof, and a bottom wall lower surface constituent part 32 as a first member that constitutes the lower surface of the bottom wall part 5 and forms a bottom wall internal space 33 between the lower surface of the bottom wall base constituent part 31 and the bottom wall base constituent part 32. The bottom wall base constituent part 31 and the bottom wall lower surface constituent part 32 are made of polypropylene. As shown in FIG. 7, etc., the bottom wall base constituent part 31 includes a bottom wall upper surface base wall part 35 that constitutes the upper surface of the bottom wall part 5, which has a generally rectangular shape in a plan view, the short side side base part 6 that protrudes upward from the short side edge of the bottom wall upper surface base wall part 35, and the long side side base part 7 that protrudes upward from the long side edge of the bottom wall upper surface base wall part 35.

[0019] As shown in Figures 7, 24, etc., the short side base portion 6 includes a short side base inner lower vertical wall portion 42 extending upward from the short side edge of the bottom wall upper surface base wall portion 35, a short side base inner middle wall portion 43 extending outward from the upper edge of the short side base inner lower vertical wall portion 42, a short side base inner upper vertical wall portion 44 extending upward from the outer edge of the container body 2 of the short side base middle wall portion 43, short side base axis wall portions 45 extending upward from both side edges of the short side base middle wall portion 43, and a short side base inner upper vertical wall portion 44. It also comprises a short side base upper wall portion 46 extending outward from the upper edge of the short side base axial wall portion 45 to the outside of the container body 2, a short side base outer vertical wall portion 47 extending downward from the outer edge of the short side base upper wall portion 46 to the container body 2, an axial wall adjustment portion 48 extending from the inner edge of the short side base axial wall portion 45 to the outside of the container body 2 (to the lateral side in the width direction of the short side side wall portion 8), and a support wall portion 49 protruding from the axial wall adjustment portion 48 toward the longitudinal center of the long side base portion 7.

[0020] As shown in Figure 3 etc., the short side bearing portions 41 of this embodiment are provided at the bottom of each short side base shaft wall portion 45. The short side shaft protrusions 15 are inserted into the short side bearing portions 41 and are approximately fitted to an extent that rotation of the short side shaft protrusions 15 is permitted. This allows the short side side wall portions 8 to be connected (pivotally supported) to the short side base portion 6 so as to be rotatable and displaceable.

[0021] As shown in Figure 7, the long side base portion 7 comprises a long side base inner lower vertical wall portion 52 extending upward from the long side edge of the bottom wall upper surface base wall portion 35, a long side base middle wall portion 53 extending from the upper edge of the long side base inner lower vertical wall portion 52 toward the outside of the container body 2, a long side base inner upper vertical wall portion 54 extending upward from the outside edge of the container body 2 of the long side base middle wall portion 53, a long side base upper wall portion 55 extending from the upper edge of the long side base inner upper vertical wall portion 54 toward the outside of the container body 2, and a long side base outer vertical wall portion 56 extending downward from the outside edge of the container body 2 of the long side base upper wall portion 55. Both sides of the long side base upper wall portion 55 are inclined upward toward the side and connected to the short side base portion 6, and the support wall portion 49 of the short side base portion 6 is connected to the upper surface of both sides of the long side base upper wall portion 55.

[0022] As shown in FIG. 3 , the long-side bearings 51 of this embodiment are provided on both sides of the short-side base inner lower vertical wall 42 of the short-side base 6. The long-side shaft protrusions 25 are inserted into the long-side bearings 51 and are substantially fitted to an extent that rotation of the long-side shaft protrusions 25 is permitted. This allows the long-side sidewalls 9 to be rotatably connected (pivotally supported) to the short-side base 6. In particular, in this embodiment, the long-side bearings 51 extend from the lower edge to the upper edge of the short-side base inner lower vertical wall 42, and are configured so that when the long-side sidewalls 9 are in the folded position (the short-side sidewalls 8 remain in the upright position), the long-side sidewalls 9 in the folded position can be stacked one on top of the other within the range in which the long-side shaft protrusions 25 are inserted into the long-side bearings 51.

[0023] 8, 9, 27, etc., in this embodiment, a region including the short-side base outer vertical wall portion 47 and the lower side of the long-side base outer vertical wall portion 56 has a double-wall structure in the inner and outer periphery directions of the short-side base portion 6 and the long-side base portion 7 (the inner and outer directions of the container body 2). More specifically, the region (second mating wall portion) including the short-side base outer vertical wall portion 47 and the lower side of the long-side base outer vertical wall portion 56 has a bottom wall inner tip wall portion 57 (second inner tip wall portion) and a bottom wall outer tip wall portion 58 (second outer tip wall portion) that are spaced apart and face each other in the inner and outer periphery directions of the short-side base outer vertical wall portion 47 and the long-side base outer vertical wall portion 56, and a bottom wall insertion space 59 that opens downward is formed between the bottom wall inner tip wall portion 57 and the bottom wall outer tip wall portion 58.

[0024] 10, the bottom wall lower surface forming portion 32 includes a bottom wall lower surface base wall portion 61 having a generally rectangular shape when viewed from below, and a bottom wall orthogonal wall portion 62 that protrudes upward from the outer periphery of the bottom wall lower surface base wall portion 61. Also, as shown in Fig. 12, a support portion 63 is provided on the underside of the bottom wall lower surface forming portion 32. The support portion 63 protrudes downward from the underside of the bottom wall lower surface base wall portion 61 and is supported by coming into contact with the installation surface when the container 1 is installed on an installation surface such as a floor. The support portion 63 is composed of a frame-shaped portion provided at a position spaced inward from the outer periphery of the bottom wall lower surface base wall portion 61, and a lattice-shaped portion provided inside the frame-shaped portion.

[0025] As shown in FIGS. 10 and 11 , a portion (first mating wall portion) including the upper edge portion of the bottom wall orthogonal wall portion 62 is provided with a bottom wall insertion tip wall portion 64 (first tip wall portion) formed to reduce the thickness of the outer peripheral side of the bottom wall orthogonal wall portion 62. Then, as shown in FIG. 27 , the bottom wall insertion tip wall portion 64 is inserted (press-fitted) into the bottom wall insertion space 59, thereby fitting the bottom wall inner tip wall portion 57 and the bottom wall outer tip wall portion 58 with the bottom wall insertion tip wall portion 64. This engages the short-side base outer vertical wall portion 47 and the long-side base outer vertical wall portion 56 with the bottom wall orthogonal wall portion 62, thereby assembling the bottom wall base constituent portion 31 and the bottom wall undersurface constituent portion 32. Furthermore, a heat insulating member 14 made of foamed polyurethane is provided in the bottom wall internal space 33 formed between the bottom wall base constituent portion 31 and the bottom wall undersurface constituent portion 32. Furthermore, the area including the upper edge portion of the bottom wall orthogonal wall portion 62 may be configured in two layers to form an insertion space, and the area (single layer) including the short side base outer vertical wall portion 47 and the lower edge portion of the long side base outer vertical wall portion 56 may be configured to be inserted into such insertion space.

[0026] 5 and 24, a base receiving recess 71 is provided on the lower portion of the outer surface of the short-side side wall 8, which receives the upper portion of the short-side base 6 (a portion formed by the short-side base inner upper vertical wall 44, the short-side base upper wall 46, and the short-side base outer vertical wall 47) when the container body 2 is assembled. As a result, when the container body 2 is assembled, the lower portion of the short-side side wall 8 and the upper portion of the short-side base 6 overlap in the inner and outer directions of the container body 2, and the upper edge of the base receiving recess 71 abuts against the short-side base upper wall 46 from above and below. In particular, in this embodiment, when the container body 2 is assembled, the outer surface of the short-side side wall 8 is configured to be located outward from the outer surface of the bottom wall forming portion 4 (short-side base 6).

[0027] 5, the inner surface of the short-side base 6 is provided with a base-side engagement portion 72 that protrudes inward from the upper portion of the short-side base inner upper vertical wall portion 44 toward the inside of the container body 2. In contrast, the short-side sidewall 8 is provided with a recessed sidewall engagement portion 73 at a location corresponding to the base receiving recess 71, into which the base-side engagement portion 72 is inserted when the short-side sidewall 8 is in an upright position. For example, when the assembled container body 2 is lifted by grasping the short-side sidewall 8, the sidewall engagement portion 73 and the base-side engagement portion 72 are vertically engaged (the bottom wall constituent portion 4 is lifted with the lower edge of the base-side engagement portion 72 supported by the lower edge of the recess that constitutes the sidewall engagement portion 73). This reduces the burden on the structure that rotatably connects the short side side wall portion 8 (and the long side side wall portion 9) to the bottom wall component 4 when the assembled container body 2 is lifted by grasping the short side side wall portion 8, preventing situations such as the short side side shaft protrusion 15 falling off from the short side side bearing portion 41 (the long side side shaft protrusion 25 falling off from the long side side bearing portion 51).

[0028] As shown in Figures 3 and 13, the lid body 3 includes a lid body 81 that can close the opening on the top surface of the container body 2 in the assembled state, and a fastener 82 that is attached to the lid body 81 and maintains the container 1 in a covered state (preventing the lid body 3 from falling off the assembled container body 2). A pair of fasteners 82 is provided corresponding to each center of a pair of opposing short side edges of the lid body 3. In addition, as shown in Figure 24, the lid body 81 is integrally formed from polypropylene by blow (hollow) molding so as to form a lid internal space 83. A heat insulating member 14 made of foamed polyurethane is provided in the lid internal space 83.

[0029] 4, 22, etc., the container body 2 includes sidewall upper edge protrusions 85 as assembly restricted portions that protrude upward from the upper edges of the short side wall portions 8 and the long side wall portions 9 and are provided along the entire periphery of the upper edges of the short side side wall portions 8 and the long side side wall portions 9. The upper surfaces of the sidewall upper edge protrusions 85 are located outward of the inner edges of the container body 2 of the upper edges of the short side side wall portions 8 and the long side side wall portions 9 in the thickness direction of the corresponding short side side wall portions 8 and the long side side wall portions 9. Furthermore, the outer portion of the upper surface of the sidewall upper edge protrusions 85 of the container body 2 is configured one step lower than the inner portion of the container body 2.

[0030] 13, 22, etc., the lid body 81 of the lid body 3 is provided with a lid stopper recess 86 that is formed along the outer periphery of the underside of the lid body 81 so as to open downward and toward the outer periphery of the lid body 81 (the centrifugal side relative to the center of the lid body 81), and that receives the side wall upper edge protrusion 85 when the container 1 is covered. Furthermore, a lid auxiliary protrusion 87 is provided that protrudes downward from the outer periphery edge of the upper edge of the lid stopper recess 86. The lower end of the lid auxiliary protrusion 87 is located above the underside of the lid body 81. When the container 1 is in the covered state, in the vertical direction, the lower surface of the lid main body 81 approximately abuts against the portions of the upper edges of the short side side wall portion 8 and the long side side wall portion 9 that are located more inward of the container main body 2 than the side wall upper edge protrusion 85, the upper edge of the lid stop recess 86 abuts against the inner portion of the container main body 2 that is one step higher than the upper surface of the side wall upper edge protrusion 85, and the lower end of the lid auxiliary protrusion 87 approximately abuts against the outer portion of the container main body 2 that is one step lower than the upper surface of the side wall upper edge protrusion 85. Furthermore, in the inward / outward direction of the container body 2 (inward / outward direction of the lid body 81), the side edge portion of the lid stop recess 86 on the central side of the lid body 81 (hereinafter referred to as the "lid side restriction portion 88") is configured to substantially abut against the side wall upper edge protrusion 85, and the abutment between the lid side restriction portion 88 and the side wall upper edge protrusion 85 prevents the long side side wall portion 9 in the upright position from tilting toward the folded position, and restricts relative displacement in the horizontal direction of the lid body 3 with respect to the container body 2 in the assembled state. In this embodiment, the lid side restriction portion 88 constitutes the assembly restriction portion.

[0031] In addition, in the inward / outward direction of the container body 2 (inward / outward direction of the lid body 81), the side wall upper edge protrusion 85 is located further outward of the container body 2 than the outer peripheral surface of the support portion 63. As a result, when assembled container bodies 2 are stacked one on top of the other, the support portion 63 of the upper container body 2 is inserted into the inner peripheral side of the side wall upper edge protrusion 85 of the lower container body 2 and comes into contact with or close to it, and a portion of the lower surface of the bottom wall constituent portion 4 of the upper container body 2 that is closer to the outer peripheral side of the bottom wall portion 5 than the support portion 63 (the centrifugal side with respect to the center of the bottom wall portion 5) is abutted against and supported by the upper surface of the side wall upper edge protrusion 85 of the lower container body 2, and the lower surfaces of the support portion 63 of the upper container body 2 are abutted against and supported by portions of the upper edges of the short side side wall portions 8 and long side side wall portions 9 of the lower container body 2 that are closer to the container body 2 than the side wall upper edge protrusion 85.

[0032] 3, 22, etc., the lid body 81 is provided with a lid body upper surface protrusion 89 that protrudes upward from an area including the center of each short side edge and an area including the center of each long side edge on the top surface of the lid body 81. In the inner and outer periphery direction of the lid body 81, the lid body upper surface protrusion 89 is located outward (on the centrifugal side relative to the center of the lid body 81) from the inner edge of the lid stopper recess 86 (the lid side restriction portion 88). The boundary between the upper surface and the outer surface of the lid body upper surface protrusion 89 is rounded and chamfered.

[0033] When containers 1 in a covered state are stacked one on top of the other (see Figure 29), the support portion 63 of the upper container 1 is inserted into the area surrounded by the lid body upper surface protrusion 89 of the lower container 1 (the inner side of the lid body upper surface protrusion 89), and abuts or comes close to the inner surface of the lid body upper surface protrusion 89 (the surface toward the center of the lid main body 81), and the portion of the lower surface of the bottom wall component 4 of the upper container 1 that is outward of the support portion 63 abuts and is supported by the upper surface of the lid body upper surface protrusion 89 of the lower container main body 2, and the support portion 63 of the upper container 1 abuts and is supported by the upper surface of the lid main body 81 of the lower container 1.

[0034] 1, 3, and 14 to 16, the fixture 82 includes a pair of left and right mounting portions 91 attached to the lid main body 81, and a facing portion 92 facing the outer surface of the container main body 2 (short-side side wall portion 8) when the container 1 is covered. The mounting portion 91 includes a base plate portion 93 extending vertically facing the outer peripheral surface of the lid main body 81, an upper engagement portion 94 having a generally C-shaped cross section that opens downward and has one end connected to the upper edge of the base plate portion 93, and a lower engagement portion 95 that faces the upper engagement portion 94 vertically and projects in a direction generally perpendicular to the upper engagement portion 94, and a claw portion 95a that projects upward from the tip of the lower engagement portion 95.

[0035] 17, 18, and 23, a mounting portion 101 to which the fastener 82 is attached is provided in the center of the short side of the lid main body 81. In the mounting portion 101, the outer peripheral surface of the lid main body 81 is recessed toward the center of the lid main body 81, and the lid top surface protrusion 89 is also configured to be slightly smaller. This prevents the fastener 82 from protruding outward beyond its adjacent left and right portions. Furthermore, the mounting portion 101 does not include the lid auxiliary protrusion 87, and instead has upwardly recessed claw engagement recesses 102 at positions on the upper edge of the lid stop recess 86 that correspond to the pair of left and right mounting portions 91. When the fastener 82 is attached to the mounting portion 101, the upper engagement portion 94 of the mounting portion 91 engages with the lid top surface protrusion 89 so as to wrap around it, and the claw portion 95a of the lower engagement portion 95 is inserted into and engaged with the claw engagement recesses 102 of the mounting portion 101. As shown in Figure 13, each mounting portion 91 is provided with a protrusion that serves as a substitute for the lid auxiliary protrusion 87 (where the opposing portion 92 is provided, the opposing portion 92 serves as a substitute for the lid auxiliary protrusion 87), preventing a decrease in insulation and the increased ease with which dust and the like can enter due to the formation of a portion where the lid auxiliary protrusion 87 is not provided at the joint between the lid body 3 and the container body 2.

[0036] 14 and other figures, the facing portion 92 is located between the pair of mounting portions 91 in the width direction of the fixing device 82. Furthermore, the facing portion 92 is provided with a locking hole 103 as a locking portion that penetrates the facing portion 92 in the thickness direction at a position spaced inward from the outer circumferential edge of the facing portion 92. In addition, the lower edge portion of the facing portion 92 is curved so that the central portion of the facing portion 92 in the width direction is the lowest point.

[0037] 19 to 21, 25, and 26, a recessed assembled receiving portion 104 is provided in the center of the width direction of the upper outer surface of each short-side side wall 8 to receive the opposing portion 92 of the lid 3 when the container 1 is in the covered state. This prevents the opposing portion 92 from protruding outward from the outer surface of the short-side side wall 8 when the container 1 is in the covered state. Also, as shown in FIG. 21, the center of the opposing portion 92 and the center of the assembled receiving portion 104 are positioned at approximately the same position in the width direction of the short-side side wall 8. Furthermore, as shown in FIGS. 19, 20, etc., a locking projection 105 is provided as a lockable portion that protrudes outward from the assembled receiving portion 104 toward the container body 2. When the corresponding short-side side wall 8 is viewed from the front, the locking projection 105 has a shape (generally triangular in front view) that starts at a portion of the upper portion and gradually widens downward. Furthermore, as shown in Figure 26 and other figures, the upper surface of the locking protrusion 105 is inclined downward toward the outside of the container body 2, and in particular, the portion of the upper surface of the locking protrusion 105 facing outward from the container body 2 is formed into a rounded chamfered shape with a greater downward inclination. On the other hand, the lower surface of the locking protrusion 105 extends in a substantially horizontal direction. Then, as shown in Figure 25, by placing the container 1 in the covered state, the locking protrusion 105 is inserted into the locking hole 103 and locked (with the lower edge of the locking hole 103). It is sufficient that at least the portion of the upper surface of the locking protrusion 105 facing outward from the container body 2 is inclined downward toward the outside of the container body 2.

[0038] 20, 21, 25, etc., the short-side side wall 8 is provided with an operation recess 106 that is formed in a range including the area facing the lower edge of the facing portion 92 when the container 1 is in the covered state, and that allows contact with the back side of the facing portion 92. The operation recess 106 is provided in a manner that recesses the lower part of the assembly-accommodating portion 104 more deeply toward the inside of the container body 2. As shown in FIG. 20, the lower edge of the operation recess 106 is curved in a manner that follows the lower edge of the facing portion 92, so that the central part in the width direction of the short-side side wall 8 is the lowest point, and as shown in FIG. 25, it is inclined downward toward the outside of the container body 2. As shown in Figure 21, in the width direction of the short side side wall portion 8, the center of the opposing portion 92 and the center of the operation recess 106 are at approximately the same position, so at any position in the width direction of the opposing portion 92, the distance in the vertical direction between the lower edge of the opposing portion 92 and the lower edge of the operation recess 106 (the outer edge of the container body 2) is approximately constant.

[0039] As shown in FIGS. 20 and 26 , a handle recess 107 is provided on the outer surface of the short-side sidewall 8 below the operation recess 106, allowing an operator to insert their fingertips inward from the outer surface of the short-side sidewall 8. This allows the operator to carry the container 1 by hooking their fingertips around the upper edge of the handle recess 107. Furthermore, a folded portion 108 is provided on the upper edge of the handle recess 107, extending downward from the outer edge of the container body 2. As shown in FIGS. 20 and 21 , the folded portion 108 is curved to correspond to the curvature of the lower edge of the operation recess 106, so that the center of the corresponding short-side sidewall 8 in the width direction is at its lowest point. The width of the handle recess 107 is wider than the width of the operation recess 106, but the center of the handle recess 107 and the center of the operation recess 106 are aligned in the width direction of the short-side sidewall 8. Furthermore, the vertical width of the handle recess 107 is configured to be larger than the distance between the opposing portion 92 and the lower edge (outer end) of the operation recess 106 when the container 1 is in the covered state, and the handle recess 107 is configured to be easier to insert (more noticeable) the fingertips into than the operation recess 106.

[0040] As shown in FIG. 27 , in this embodiment, the assembly portion (hereinafter referred to as the “assembly portion 109”) between the bottom wall base constituent portion 31 and the bottom wall undersurface constituent portion 32 is configured to be fitted by inserting the bottom wall insertion tip wall portion 64 of the bottom wall orthogonal wall portion 62 between the bottom wall inner tip wall portion 57 and the bottom wall outer tip wall portion 58 of the short-side base outer vertical wall portion 47 and the long-side base outer vertical wall portion 56, and therefore has a relatively large thickness. In this embodiment, the assembly portion 109 is configured to be thick by protruding toward the outer periphery of the bottom wall portion 5, rather than being thick by protruding toward the bottom wall internal space 33. With this configuration, the assembly portion 109 is located at the outermost position of the bottom wall constituent portion 4 in the inner / outer periphery direction of the bottom wall portion 5 (see FIG. 24 ).

[0041] As described above, in the assembled state of the container body 2, the outer surface of the short-side side wall portion 8 is located outward from the outer surface of the bottom wall constituent portion 4 (short-side base portion 6) (see FIG. 24), and in this embodiment, in the covered state of the container 1, the facing portion 92 is located outward from the container body 2 from the outer surface of the short-side base portion 6. Therefore, when the container 1 is placed in the placed state, as shown in FIG. 28, the facing portion 92 is arranged to face the outer surface of the bottom wall constituent portion 4 (short-side base portion 6) without causing deformation of the facing portion 92. As a result, when the container 1 is placed, the upper edge portion (short side base upper wall portion 46 and support wall portion 49) of the short side base portion 6 of the container body 2 in the folded state is inserted relatively into the lid stopper recess 86 of the lid body 3, and the upper edge portion of the lid stopper recess 86 abuts and is supported against the upper surface of the short side base portion 6, so that the lid side restricting portion 88 abuts or is close to the base side engaging portion 72 as a restricted portion for placement that protrudes from the short side base portion 6 (short side base inner upper vertical wall portion 44) toward the center of the bottom wall portion 5. In this embodiment, the lid side restricting portion 88 constitutes the placement restricting portion.

[0042] 28, in this embodiment, the assembly portion 109 of the bottom wall constituent portion 4 is the outermost portion when the container body 2 in the folded state is viewed from above. Furthermore, when the container 1 is in the placed state, the outer peripheral surface of the lid body 3 and the outer surface of the assembly portion 109 of the bottom wall constituent portion 4 are configured to be located on the same imaginary plane extending vertically, and the outer peripheral surface of the lid body 3 (lid body 81) and the outer surface of the assembly portion 109 are the outermost portions when the container 1 in the placed state is viewed from above. In addition, as shown in FIG. 24, when the container 1 is in the covered state, the outer surface of the assembly portion 109 of the bottom wall constituent portion 4, the outer surfaces of the short-side side wall portions 8 (and the long-side side wall portions 9), and the outer peripheral surface of the lid body 81 are configured to be located on the same imaginary plane extending vertically. In this embodiment, the outer surface of the lid body 81 and the outer surface of the opposing portion 92 are approximately flush with each other, but the opposing portion 92 may also be configured to be positioned more inward of the container body 2 than the outer surface of the lid body 81 in the inward / outward direction of the container body 2.

[0043] 30, in this embodiment, the lid bodies 3 are configured to be stacked vertically with the lid bodies 3 facing the same direction (in this embodiment, the facing portions 92 of the fasteners 82 are facing upside down, protruding upward). That is, as shown in FIGS. 31, 32, etc., the fasteners 82 are provided with receiving recesses 110 that can receive the facing portions 92 of other lid bodies 3 (the lower lid body 3 in FIGS. 31, 32, etc.) when the lid bodies are stacked. As shown in FIG. 14, the receiving recesses 110 are located between the base plate portions 93 of the pair of left and right mounting portions 91, and as shown in FIG. 32, the outer surface of the receiving recesses 110 is located inward of the container body 2 from the outer surfaces of the base plate portions 93 and the outer surfaces of the facing portions 92 by a distance slightly longer than the thickness of the facing portions 92. Then, as shown in Figures 31, 32 and 34, by placing the lid bodies 3 upside down in a lid body stacking state, the opposing portion 92 of the lower lid body 3 is inserted into the receiving recess 110 of the upper lid body 3, and as shown in Figures 32 and 33, the lid body upper surface protrusion 89, which serves as the lid body stacking restricted portion of the upper lid body 3, is inserted into the lid stopper recess 86 of the lower lid body 3 and comes into horizontal opposition to and abuts or comes close to the lid side restricting portion 88, which serves as the lid body stacking restricting portion. Furthermore, in this embodiment, when a force is applied to the lid bodies 3 in a stacked state such that the upper and lower lid bodies 3 are displaced horizontally relative to each other, the lid side regulating portion 88 of the lower lid body 3 and the lid body top surface protrusion 89 of the upper lid body 3 come into contact (see Figure 33), and at the same time, the opposing portion 92 of the lower lid body 3 (the opposing portion 92 of the fixing device 82 provided on the short side edge opposite to the short side edge of the lid body 3 on which the lid side regulating portion 88 abutting the lid body top surface protrusion 89 of the upper lid body 3 is provided) come into contact with the receiving recess 110 of the upper lid body 3 (see Figure 32), thereby cooperating to regulate the relative horizontal displacement between the lid bodies 3 stacked one above the other.

[0044] 22, 25, etc., in the covered state of the container 1, the inner surface (assembly restricted portion) of the side wall upper edge protrusion 85 of one short side side wall portion 8 comes into contact with the lid-side restricting portion 88 (assembly restricting portion), and at the same time, the outer surface (assembly accommodating portion 104) of the other short side side wall portion 8 comes into contact with the opposing portion 92, thereby cooperating to restrict relative horizontal displacement between the lid body 3 and the container body 2. Furthermore, as shown in FIG. 28, in the placed state of the container 1, the protruding tip (placement restricted portion) of the base-side engaging portion 72 of one short side base portion 6 comes into contact with the lid-side restricting portion 88 (placement restricting portion), and at the same time, the outer surface of the other short side base portion 6 comes into contact with the opposing portion 92, thereby cooperating to restrict relative horizontal displacement between the lid body 3 and the container body 2.

[0045] Furthermore, a recess is provided in the approximate center of the short side edge on the underside of the bottom wall constituent part 4, which allows the container 1 to be lifted by hooking a fingertip on the underside of the bottom wall constituent part 4, and when containers 1 in a covered state or a placed state are stacked one on top of the other, as shown in Figure 29, this recess is connected vertically to the receiving recess 110 of the lower container 1, making it easy to insert a fingertip into the recess. Also, the height of the container 1 in the covered state is approximately twice the height of the container 1 in the placed state, so that when containers 1 in the placed state are stacked in two layers, the top surface of the lid 3 of the upper container 1 and the top surface of the lid 3 of the container 1 in the covered state are at the same height.

[0046] As described above in detail, according to this embodiment, the lid body 3 (fixture 82) having the facing portion 92 that protrudes below the underside of the lid body 81 has a receiving recess 110 that can receive the facing portion 92 of another lid body 3 when the lid bodies 3 are stacked vertically to form a lid body stacked state. This prevents the facing portion 92 of one lid body 3 from interfering with and getting stuck on another lid body 3 in the lid body stacked state (i.e., the lid bodies 81 cannot be abutted against each other, or the facing portion 92 cannot be forcibly deformed to abut against each other to stack the lid bodies 81). This allows the height of the lid bodies 3 in the lid body stacked state to be minimized. Furthermore, the lid bodies 3 can be stacked without shifting the center of gravity, which minimizes an increase in horizontal installation space and stabilizes the lid body stacked state. As a result, the lid bodies 3 can be stored and transported collectively more efficiently. Furthermore, when the lid bodies are stacked, it is possible to avoid deformation or damage caused by excessive load being applied to the facing portion 92 or the lid body 81 due to elastic deformation of the facing portion 92 or the tip of the facing portion 92 abutting against other lid bodies 81 from above or below, thereby improving the durability of the lid body 3. In addition, when the container 1 is covered, the locking hole 103 provided so as to penetrate the facing portion 92 is locked with the locking protrusion 105 of the container body 2. Therefore, compared to, for example, a case where a locking protrusion is provided in the facing portion 92 instead of the locking hole 103 (a locking hole or a locking recess is provided in the container body 2), the thickness of the facing portion 92 including the locking portion with the container body 2 (the width in the inner and outer circumferential directions of the lid body 3) can be made as small as possible. Therefore, in a configuration in which the opposing portion 92 does not protrude outward beyond the outer peripheral surface of the lid main body 81, the depth of the receiving recess 110 and the mounting portion 101 can be made as shallow as possible, and it is possible to avoid a decrease in insulation performance due to the formation of a relatively large recess on the outer peripheral surface of the lid main body 81.

[0047] Furthermore, in this embodiment, when the upper and lower lid bodies 3 are stacked upside down, and the lid body 3 are about to move relative to each other in the horizontal direction, the lid-side restricting portion 88 of the lower lid body 3 comes into contact with the lid body top surface protrusion 89 of the upper lid body 3, and at the same time, the opposing portion 92 of the lower lid body 3 comes into contact with the receiving recess 110 of the upper lid body 3. Therefore, compared to a configuration in which the lid-side restricting portion 88 and the lid body top surface protrusion 89 are not provided, it is possible to prevent excessive load from being applied to the opposing portion 92 when restricting the relative horizontal displacement between the lid bodies 3 in the stacked state. This makes it possible to protect the opposing portion 92, and thereby improve the durability of the opposing portion 92 and, ultimately, the lid bodies 3.

[0048] Furthermore, by placing the lid body 3 on the assembled container body 2, the locking hole 103 of the facing portion 92 of the lid body 3 is locked with the locking protrusion 105 of the container body 2, thereby stabilizing the covering state of the container 1. Furthermore, by placing the lid body 3 on the folded container body 2, the facing portion 92 is positioned opposite the outer surface of the bottom wall forming portion 4 (short side base portion 6), and the lid body 3 (lid main body 81) is configured to be able to be placed on the upper surface of the short side base portion 6. Therefore, while preventing a load from being applied to the facing portion 92 (if the facing portion 92 and the short side base portion 6 interfere with each other, it is impossible to place (support the lid main body 81 in contact with) the upper surface of the short side base portion 6), the lid body 3 is stably supported by the short side base portion 6, thereby stabilizing the placed state of the container 1 and minimizing the height of the placed container 1. Therefore, the container body 2 and the lid body 3 in the folded state can be put together as a set in the most compact form possible, and as a result, the container 1 in the placed state can be stored and transported efficiently.

[0049] Furthermore, when the lid body 3 attempts to move horizontally relative to the container body 2 in the covered state of the container 1, the side wall upper edge protrusion 85 of one short side side wall portion 8 abuts against the lid-side restricting portion 88, and simultaneously the short side side wall portion 8 (assembly receiving portion 104) of the other short side side wall portion 8 abuts against the facing portion 92. Furthermore, when the container 1 is placed in the restrained state, the base-side engaging portion 72 of one short side base portion 6 abuts against the lid-side restricting portion 88, and simultaneously the other short side base portion 6 abuts against the facing portion 92. Therefore, excessive load can be prevented from being applied to the facing portion 92 when restricting the horizontal relative displacement between the lid body 3 and the container body 2 in both the covered state and the restrained state of the container 1. This can protect the facing portion 92, thereby improving the durability of the facing portion 92 and, ultimately, the lid body 3.

[0050] The short-side side wall 8 is provided with an operation recess 106 that corresponds to the lower edge of the facing portion 92 when the container 1 is in the covered state, and allows contact with the back side of the facing portion 92. The lower edge of the operation recess 106 is curved so that the center in the width direction is the lowest point, and is inclined downward toward the outside of the container body 2. Therefore, when the container 1 is in the covered state, it is easy to insert a fingertip into the operation recess 106 that opens to the outside of the container body 2 below the facing portion 92, and it is easy to contact the back side of the facing portion 92 through the operation recess 106. Furthermore, in the width direction of the short-side side wall 8, the center in the width direction of the operation recess 106 and the center in the width direction of the facing portion 92 are aligned, and when a fingertip is inserted into the operation recess 106, it is possible to place the fingertip at a suitable position on the facing portion 92. Therefore, it is possible to improve the workability when operating the facing portion 92 to release the locked state between the locking hole portion 103 and the locking projection 105.

[0051] Furthermore, the folded portion 108 of the handle recess 107 is also curved so that the central portion in the width direction is at the lowest point, corresponding to the curve of the lower edge of the operation recess 106. Therefore, when the fingertips are hooked on the upper edge of the handle recess 107, the knuckles of the fingers can also be conveniently hooked on the folded portion 108. This improves the operability when carrying the container 1 by hooking the fingertips on the handle recess 107.

[0052] When the short-side side wall portion 8 is viewed from the front, the locking protrusion 105 has a generally triangular shape with a portion of the upper part as an apex and a width that gradually increases downward, and the upper surface of the locking protrusion 105 is inclined downward toward the outside of the container body 2. This makes it possible to prevent the lower side of the opposing portion 92 from getting caught on the locking protrusion 105 when the lid 3 is placed over the assembled container body 2 and the locking hole portion 103 is locked with the locking protrusion 105. Therefore, the lid 3 can be placed over the assembled container body 2 relatively smoothly while preventing damage to the opposing portion 92 and the locking protrusion 105.

[0053] The bottom wall constituent part 4 is constructed by assembling a bottom wall base constituent part 31 and a bottom wall lower surface constituent part 32, and providing a heat insulating member 14 in a bottom wall internal space 33 formed between the bottom wall base constituent part 31 and the bottom wall lower surface constituent part 32. This improves the heat insulating properties of the bottom wall constituent part 4. Furthermore, by providing an assembly part 109 between the bottom wall base constituent part 31 and the bottom wall lower surface constituent part 32 so that it protrudes outward rather than inward (toward the bottom wall internal space 33) of the bottom wall constituent part 4, the heat insulating member 14 can be provided appropriately without narrowing the bottom wall internal space 33. Furthermore, when the container 1 is viewed from above in the placed state, the outermost part of the container 1 is formed by the assembly part 109 (and the outer peripheral surface of the container body 81). For this reason, for example, by configuring the opposing portion 92 to be the outermost portion when the container 1 is viewed from above when the container 1 is placed, and other portions to be located closer to the center of the bottom wall portion 5 than the opposing portion 92, it is possible to prevent a situation in which a separate object is likely to collide with the opposing portion 92. Therefore, it is possible to prevent damage to the opposing portion 92 when the container 1 is placed.

[0054] 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.

[0055] (a) In the above embodiment, when the lid bodies 3 are stacked upside down, and the lid side regulating portion 88 of the lower lid body 3 and the lid body upper surface protrusion 89 of the upper lid body 3 come into contact with each other, the contact is maintained while the opposing portion 92 of the lower lid body 3 and the receiving recess 110 of the upper lid body 3 come into contact with each other (they come into contact when the peripheral portions are slightly bent or slightly tilted, etc.). Alternatively, when the lid bodies 3 are stacked upside down, and the lid side regulating portion 88 of the lower lid body 3 and the lid body upper surface protrusion 89 of the upper lid body 3 come into contact with each other, the opposing portion 92 of the lower lid body 3 and the receiving recess 110 of the upper lid body 3 may not come into contact with each other. Furthermore, in the above embodiment, when the lid bodies are stacked, the lid body top surface protrusion 89 of a predetermined lid body 3 abuts against the lid side regulating portion 88 of another lid body 3, thereby restricting relative horizontal displacement between the lid bodies 3; however, for example, the lid body top surface protrusion 89 of a predetermined lid body 3 may abut against the lid auxiliary protrusion 87 of another lid body 3, thereby restricting relative horizontal displacement between the lid bodies 3. In this case, when the lid bodies are stacked, the lid body top surface protrusion 89 of a predetermined lid body 3 and the lid auxiliary protrusion 87 of another lid body 3 abut against each other, and at the same time, the opposing portion 92 of the other lid body 3 abuts against the receiving recess 110 of the predetermined lid body 3 (or, after the lid body top surface protrusion 89 of a predetermined lid body 3 and the lid auxiliary protrusion 87 of another lid body 3 abut, the opposing portion 92 of the other lid body 3 and the receiving recess 110 of the predetermined lid body 3 can abut against each other, or, when the lid body top surface protrusion 89 of a predetermined lid body 3 and the lid auxiliary protrusion 87 of another lid body 3 abut against each other, the opposing portion 92 of the other lid body 3 and the receiving recess 110 of the predetermined lid body 3 cannot abut against each other). Furthermore, the configuration may be such that the lid side regulating portion 88 of the lower lid body 3 and the lid body top surface protrusion 89 of the upper lid body 3 come into contact simply by stacking the lid bodies 3 upside down, or a clearance may be set and the upper and lower lid bodies 3 are displaced relative to each other in the horizontal direction within the clearance range, so that the lid side regulating portion 88 of the lower lid body 3 and the lid body top surface protrusion 89 of the upper lid body 3 come into contact.

[0056] (b) In the above embodiment, when the lid side regulating portion 88 and the side wall upper edge protrusion 85 come into contact when the container 1 is in the covered state, the contact is maintained and the opposing portion 92 and the short side side wall portion 8 (assembly storage portion 104) can come into contact (they come into contact when the peripheral portion is slightly bent or slightly tilted, etc.), or alternatively, when the lid side regulating portion 88 and the side wall upper edge protrusion 85 come into contact when the container 1 is in the covered state, the opposing portion 92 and the short side side wall portion 8 do not come into contact. Alternatively, the configuration may be such that when the lid-side restricting portion 88 and the base-side engaging portion 72 of the short-side base portion 6 come into contact with each other while the contact is maintained, the opposing portion 92 and the bottom wall forming portion 4 (short-side base portion 6) may come into contact with each other (they come into contact when the peripheral portions are slightly warped or tilted, etc.), or the opposing portion 92 and the bottom wall forming portion 4 (short-side base portion 6) may not come into contact with each other when the lid-side restricting portion 88 and the base-side engaging portion 72 of the short-side base portion 6 come into contact with each other when the container 1 is placed in the covered state. Note that the configuration may be such that the lid-side restricting portion 88 and the sidewall upper-edge protrusion 85 come into contact with each other simply by placing the container 1 in the covered state, or a clearance may be set and the lid body 3 and the container body 2 are displaced horizontally relative to each other within the clearance range, so that the lid-side restricting portion 88 and the sidewall upper-edge protrusion 85 come into contact with each other. Furthermore, the configuration may be such that the lid side regulating portion 88 and the short side base portion 6 (base side engagement portion 72) come into contact simply by placing the container 1 in a placed state, or a clearance may be set and the lid body 3 and the container body 2 are displaced relative to each other in the horizontal direction within the clearance range, causing the lid side regulating portion 88 and the short side base portion 6 to come into contact.

[0057] (c) In the above embodiment, the fastener 82 having the facing portion 92, the locking hole 103, and the receiving recess 110 is configured as a separate body from the lid main body 81, but the facing portion 92, the locking hole 103, and the receiving recess 110 may be formed integrally with the lid main body 81. Also, instead of the locking hole 103, a locking recess recessed in the thickness direction of the facing portion 92 may be provided on the inner surface side of the facing portion 92 (the surface toward the center of the lid main body 81), so as to be locked with the locking protrusion 105 when the container 1 is covered. Furthermore, in the above embodiment, the fasteners 82 are provided corresponding to each short side edge of the lid main body 81, but they may be provided corresponding to each long side edge.

[0058] Furthermore, in the above embodiment, when the container body 2 is folded, the short side side wall portions 8 are configured to be in the folded position above the long side side wall portions 9 in the folded position. However, the long side side wall portions 9 may be configured to be in the folded position above the short side side wall portions 8 in the folded position. In addition, the handle recess 107 may be provided on the long side side wall portions 9 rather than the short side side wall portions 8. However, it is preferable to provide the handle recess 107 on a side wall portion that has a configuration that can be engaged with the bottom wall component 4 in the vertical direction, such as the base side engaging portion 72 and the side wall side engaging portion 73. Furthermore, the operation recess 106 and the handle recess 107 may be provided with holes that penetrate the short side side wall portions 8.

[0059] (d) In the above embodiment, the short-side sidewall portions 8, the long-side sidewall portions 9, the bottom wall constituent portion 4, and the lid body 3 (lid main body 81) each have an internal space, and the insulating member 14 is provided in the internal space. However, the insulating member 14 may be omitted for some or all of these, or the lid body 3 may not have an internal space. Furthermore, in the above embodiment, the lid body 81 is integrally formed as a whole by blow molding, but it may be formed by connecting multiple components (for example, by assembling an upper constituent portion that forms the upper surface of the lid body 81 and a lower constituent portion that forms the lower surface of the lid body 81, and providing the insulating member 14 in the lid body internal space 83). Additionally, in the above embodiment, the attachment portion 109 of the bottom wall constituent portion 4 does not have to be provided along the entire circumference of the bottom wall constituent portion 4, and the attachment portion 109 may be configured so that the protruding length in the circumferential direction (centrifugal direction) of the bottom wall portion 5 varies in part.

[0060] (e) Furthermore, in the above embodiment, the short side base component 11, the short side inner surface component 12, the long side base component 21, the long side inner surface component 22, the bottom wall base component 31, the bottom wall lower surface component 32, the lid main body 81, and the fixing device 82 are made of polypropylene, but they may also be made of other polyolefin-based resins (polyethylene, etc.) or synthetic resins other than polyolefin-based resins (for example, ABS resin, AES resin, acrylic resin, polycarbonate, etc.). [Explanation of symbols]

[0061] 1...container, 2...container body, 3...lid body, 4...bottom wall constituent part, 5...bottom wall part, 6...short side base part, 7...long side base part, 8...short side side wall part, 9...long side side wall part, 14...insulating member, 31...bottom wall base constituent part, 32...bottom wall lower surface constituent part, 33...bottom wall internal space, 57...bottom wall inner tip wall part, 58...bottom wall outer tip wall part, 59...bottom wall insertion space, 62...bottom wall orthogonal wall part, 63...support portion, 64...bottom wall tip insertion wall portion, 72...base side engagement portion, 81...lid main body, 82...fixing device, 85...side wall upper edge protrusion, 86...lid stopping recess, 88...lid side regulating portion, 89...lid body upper surface protrusion, 92...opposing portion, 103...engaging hole portion, 105...engaging protrusion, 106...operation recess, 107...handle recess, 108...folded portion, 109...assembly portion, 110...receiving recess.

Claims

1. A box-shaped container body that opens upward; a lid body that covers the opening of the container body, The container body includes a side wall upper edge protrusion, The lid body is a lid body capable of closing an opening on the upper surface side of the container body; a fixing device attached to the lid body to maintain the container covered; The lid body has a mounting portion to which the fixing device is attached; a lid stopper recess formed along the outer peripheral edge of the lower surface of the lid body so as to open downward and toward the outer peripheral side of the lid body, and into which the side wall upper edge protrusion is accommodated when the container is covered; a lid auxiliary protrusion protruding downward from an edge on the outer periphery of the lower surface of the lid body, The fixture includes: a pair of left and right mounting portions attached to the lid body; a facing portion that faces the outer surface of the container body when the container is covered, The pair of left and right mounting portions are provided with protrusions that serve as substitutes for the lid auxiliary protrusions, A container characterized in that the opposing portion is provided at a location where the opposing portion serves as the lid auxiliary protrusion.

2. The lid body includes a lid body stacking restricting portion and a lid body stacking restricted portion, The lid bodies can be stacked in the same direction, The container according to claim 1, characterized in that, when the lid bodies are stacked, the lid body stacking restricted portion of one of the lid bodies is inserted into the lid stopper recess of the other lid body and abuts or comes close to the lid body stacking restricting portion in the horizontal direction.

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