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 including a container body capable of accommodating an article and a lid body.

Background Art

[0002] Conventionally, as a container used for transporting articles or the like, there is a technique including a substantially box-shaped container body that opens upward and a lid body that covers the container body, and a fixture is attached to the lid body, and when the lid body is placed on the container body, a locking portion of the fixture is locked to a locked portion of the container body (see, for example, Patent Document 1).

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] By the way, it is desired to stabilize the covering state of the container.

[0005] The present invention has been made to solve the above-exemplified problems and the like, and an object thereof is to provide a container including a container body and a lid body, in which the covering state of the container can be stabilized.

Means for Solving the Problems

[0006] Hereinafter, each means suitable for solving the above object and the like will be described separately. In addition, the effects and the like specific to the corresponding means will be added as necessary.

[0007] Means 1. In a container including a substantially box-shaped container body that opens upward and a lid body that is in a covering state with respect to the opening of the container body, The lid has a facing portion that faces the outer surface of the container body when the lid covers the container body. The facing portion is provided with a locking portion that can be locked to the container body when the lid covers the container body. The locking portion is configured by forming a recessed portion that is recessed in the thickness direction of the facing portion or a through hole in the facing portion. The container body includes a locked portion that protrudes outward from the outer surface side of the side wall portion to the outer side of the container body and is locked to the locking portion in the covered state. The locked portion has a shape in which a part of the upper portion forms a top portion and the width gradually widens downward when the corresponding side wall portion is viewed from the front, and at least a portion of the outer side of the container body on the upper surface of the locked portion is inclined downward toward the outer side of the container body. A container characterized by this.

[0008] According to means 1, since the locking portion of the facing portion is a recessed portion or a hole portion, the thickness including the locking portion of the facing portion (the width in the inner and outer circumferential directions of the lid) can be made as small as possible compared to the case where the locking portion is protruded. Therefore, it becomes possible to make the depth of the receiving recess as shallow as possible. For example, in a configuration where the facing portion is not protruded outward from the outer peripheral surface of the main body of the lid, by forming the receiving recess, a relatively large recess is formed in the outer peripheral portion of the lid, and a situation such as a decrease in heat insulation performance can be avoided.

[0009] In addition, since the locking portion is locked to the locked portion by covering the container body with the lid, the stability of the covered state of the container can be achieved.

[0010] In addition, when the lid is placed on the container body and the locking portion is locked to the locked portion, a situation where the lower side portion of the facing portion is caught by the locked portion can be prevented. Therefore, while suppressing damage to the facing portion and the locked portion, the lid can be placed on the container body in the assembled state relatively smoothly.

[0011] Means 2. A substantially box-shaped container body that opens upward, A container comprising a lid that covers the opening of the container body. The lid includes a facing portion that faces the outer surface of the container body when the lid is placed on the container body. The facing portion is provided with a locking portion that can be locked to the container body when the lid is placed on the container body. The locking portion is configured by forming a recess or a through-hole that recesses in the thickness direction of the facing portion in the facing portion. The container body includes a locked portion that protrudes outward from the outer surface side of the side wall portion to the outer side of the container body and is locked to the locking portion in the covered state. An operation recess is formed in a range including a portion of the side wall portion that faces the lower side portion of the facing portion in the covered state, and allows contact with the back surface side of the facing portion. A container, characterized in that the lower edge portion of the operation recess is curved such that the central portion in the lateral width direction of the corresponding side wall portion is the lowest portion, and is inclined downward toward the outer side of the container body.

[0012] According to means 2, since the locking portion of the facing portion is a recess or a hole, the thickness (width in the inner and outer circumferential directions of the lid) including the locking portion of the facing portion can be made as small as possible compared to the case where the locking portion is protruded. Therefore, it becomes possible to make the depth of the receiving recess as shallow as possible. For example, in a configuration where the facing portion is not protruded outward from the outer peripheral surface of the main body of the lid, by forming the receiving recess, a situation where a relatively large recess is formed in the outer peripheral portion of the lid and the heat insulation performance is deteriorated can be avoided.

[0013] In addition, since the locking portion is locked to the locked portion by covering the container body with the lid, the stability of the covered state of the container can be achieved.

[0014] Furthermore, due to the shape of the lower edge of the operation recess, when the container is in the covered state, it becomes easier to insert a fingertip into the operation recess that opens to the outer side of the container body below the opposing part, and it becomes possible to easily make contact with the back side of the opposing part through the operation recess. Therefore, it is possible to improve the workability when releasing the locked state of the locking part and the like.

[0015] Means 3. On the side wall part provided with the operation recess, a hand-holding recess is provided at a position below the operation recess, A folded-back part that extends downward from a part on the outer side of the container body of the upper edge of the hand-holding recess is provided, The container according to means 2, wherein the folded-back part is curved such that the central part in the lateral width direction of the corresponding side wall part is the lowest part corresponding to the curvature of the lower edge of the operation recess.

[0016] According to means 3, the folded-back part is also curved corresponding to the lower edge of the operation recess, and when a fingertip is placed on the upper edge of the hand-holding recess, finger joints and the like can also be suitably placed on the folded-back part. Therefore, it is possible to improve the workability when carrying the container with a fingertip placed on the hand-holding recess and the like.

[0017] Means 4. The container according to means 2, wherein in the lateral width direction of the side wall part provided with the operation recess, the central part of the opposing part and the central part of the operation recess are configured to be in the same position.

[0018] According to means 4, when a fingertip is inserted into the operation recess, the fingertip can be placed at a suitable position of the opposing part, and it becomes easier to perform the operation of operating the opposing part to release the locked state of the locking part.

[0019] Means 5. The container according to any one of means 1 to 4, wherein an internal space is provided in each of the container body and the lid body, and a heat insulating member is provided in each internal space.

[0020] According to means 5, the heat insulation performance can be enhanced.

Brief Description of the Drawings

[0021]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Figure 7

Figure 8

Figure 9

Figure 10

Figure 11

Figure 12

Figure 13

Figure 14

Figure 15

Figure 16

Figure 17

Figure 18

Figure 19

Figure 20

Figure 21

Figure 22

Figure 23

Figure 24

Figure 25

Figure 26

Figure 27

Figure 28

Figure 29

Figure 30

Figure 31

Figure 32

Figure 33

Figure 34

MODE FOR CARRYING OUT THE INVENTION

[0022] Hereinafter, an embodiment will be described with reference to the drawings. As shown in FIGS. 1, 3, 4, etc., the container 1 includes a container body 2 having a substantially rectangular box shape that opens upward, and a lid 3 that is detachably placed on the container body 2. The container body 2 includes a bottom wall portion 5 having a substantially rectangular shape in plan view, short-side base portions 6 that project upward from the bottom wall portion 5 along each short side portion of the bottom wall portion 5, and long-side base portions 7 that project upward from the bottom wall portion 5 along each long side portion of the bottom wall portion 5. The container body 2 further includes short-side side wall portions 8 and long-side side wall portions 9 that are rotatably and displaceably connected to the respective short-side base portions 6 and long-side base portions 7. As shown in FIG. 4, the short-side side wall portions 8 and the long-side side wall portions 9 are configured to be displaceable between an upright posture where they stand above the corresponding short-side base portions 6 and long-side base portions 7, and a folded posture where they are laid down above the bottom wall portion 5 (central portion side) as shown in FIG. 5. Therefore, when storing an article in the container 1, it is set to an assembled state (see FIG. 4) where all the short-side side wall portions 8 and the long-side side wall portions 9 are in the upright posture, and when storing the container 1, etc., it is set to a folded state (see FIG. 5) where all the short-side side wall portions 8 and the long-side side wall portions 9 are in the folded posture, and it is configured to be able to save space, etc. In addition, as for the entire container 1 including the lid 3, it is configured to be able to change states between a covered state (see FIG. 1) where the lid 3 is placed on the assembled container body 2 and a placed state (see FIG. 2) where the lid 3 is placed on the folded container body 2.

[0023] Also, as shown in FIG. 3 and the like, the protruding length of the short-side base portion 6 from the bottom wall portion 5 is longer than the protruding 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 side wall portion 8 is also located above the formation position of the long-side bearing portion 51 for rotatably supporting the long-side side wall portion 9. Further, as shown in FIG. 4 and the like, the lateral width of the short-side side wall portion 8 is configured to be substantially the same as the short width of the bottom wall component portion 4, and the lateral width of the long-side side wall portion 9 is configured to be substantially the same as the distance between the pair of short-side base portions 6. For this reason, in the present embodiment, when the container body 2 in the assembled state is set to the folded state, as shown in FIG. 6, the pair of long-side side wall portions 9 are first displaced to the folded posture so as to overlap above the bottom wall portion 5, and then the short-side side wall portion 8 is displaced to the folded posture so as to overlap above the long-side side wall portion 9.

[0024] As shown in FIGS. 3, 24 and the like, the short-side side wall portion 8 includes a short-side base component portion 11 that constitutes most of the outer portion of the short-side side wall portion 8, and a short-side inner surface component portion 12 that forms a short-side internal space 13 (see FIG. 24) between the short-side base component portion 11 and the inner surface thereof. The short-side base component portion 11 and the short-side inner surface component portion 12 are made of polypropylene. Further, a heat insulating member 14 made of foamed polyurethane is provided in the short-side internal space 13. Furthermore, the short-side side wall portion 8 includes a pair of short-side shaft protrusions 15 (see FIG. 3) that protrude laterally from the lower portions of the left and right side portions, respectively.

[0025] As shown in FIGS. 3, 22 and the like, the long-side side wall portion 9 includes a long-side base component portion 21 that constitutes most of the outer portion of the long-side side wall portion 9, and a long-side inner surface component portion 22 that forms a long-side internal space 23 (see FIG. 22) between the long-side base component portion 21 and the inner surface thereof. The long-side base component portion 21 and the long-side inner surface component portion 22 are made of polypropylene. Further, a heat insulating member 14 made of foamed polyurethane is provided in the long-side internal space 23. Furthermore, the long-side side wall portion 9 includes a pair of long-side shaft protrusions 25 (see FIG. 3) that protrude laterally from the lower portions of the left and right side portions, respectively.

[0026] Also, as shown in FIGS. 3 and 6, a restricting wall portion 16 that protrudes inward of the container body 2 from both side portions on the inner surface side of the short-side side wall portion 8 is provided. The restricting wall portion 16 is configured to overlap with the outer surface side of the long-side side wall portion 9 in the inner and outer direction of the container 1 when the container body 2 is in the assembled state. Further, an insertion hole portion 17 that penetrates in the lateral width direction of the short-side side wall portion 8 is provided in the restricting wall portion 16.

[0027] On the other hand, on both side portions of the outer surface side of the long-side side wall portion 9, in the assembled state of the container body 2, a restricted wall portion 26 that substantially abuts on the restricting wall portion 16 of the short-side side wall portion 8, and an insertion protrusion portion 27 that protrudes outward of the container body 2 from the restricted wall portion 26 are provided. In the assembled state of the container body 2, the outer surface side of the restricted wall portion 26 substantially abuts on the restricting wall portion 16, both side portions of the long-side side wall portion 9 substantially abut on the inner surface of the short-side side wall portion 8, and the insertion protrusion portion 27 is inserted into the insertion hole portion 17 to be in a locked state. Incidentally, although details will be described later, by covering the container body 2 with the lid body 3, the displacement of the long-side side wall portion 9 toward the folding posture side is configured to be restricted.

[0028] As shown in FIGS. 3, 24, etc., the bottom wall component 4 includes a bottom wall base component 31 as a second member that constitutes most of the upper part of the bottom wall component 4, and a bottom wall lower surface component 32 as a first member that constitutes the lower surface side of the bottom wall portion 5 and forms a bottom wall internal space 33 between the lower surface of the bottom wall base component 31. The bottom wall base component 31 and the bottom wall lower surface component 32 are made of polypropylene. As shown in FIG. 7, etc., the bottom wall base component 31 includes a bottom wall upper surface base wall portion 35 that constitutes the upper surface of the bottom wall portion 5 having a substantially rectangular shape in plan view, the short-side base portion 6 that protrudes upward from the short-side edge portion of the bottom wall upper surface base wall portion 35, and the long-side base portion 7 that protrudes upward from the long-side edge portion of the bottom wall upper surface base wall portion 35.

[0029] As shown in Fig. 7, Fig. 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 portion of the upper surface base wall portion 35 of the bottom wall, a short-side base middle wall portion 43 extending outward from the upper edge portion of the short-side base inner lower vertical wall portion 42 to the outside of the container body 2, a short-side base inner upper vertical wall portion 44 extending upward from the edge portion on the outside of the container body 2 of the short-side base middle wall portion 43, short-side base shaft wall portions 45 extending upward from both side edge portions of the short-side base middle wall portion 43, a short-side base upper stage wall portion 46 extending outward from the upper edge portions of the short-side base inner upper vertical wall portion 44 and the short-side base shaft wall portions 45 to the outside of the container body 2, a short-side base outer vertical wall portion 47 extending downward from the edge portion on the outside of the container body 2 of the short-side base upper stage wall portion 46, a shaft wall surface adjusting portion 48 extending outward from the inner-side edge of the container body 2 of the short-side base shaft wall portion 45 to the outside of the container body 2 (the side in the lateral width direction of the short-side side wall portion 8), and a support wall portion 49 protruding from the shaft wall surface adjusting portion 48 toward the central portion in the longitudinal direction of the long-side base portion 7.

[0030] As shown in Fig. 3, etc., the short-side bearing portion 41 of the present embodiment is provided at the lower portion of each short-side base shaft wall portion 45. The short-side shaft protrusion 15 is inserted into the short-side bearing portion 41 and is substantially fitted to the extent that the rotation of the short-side shaft protrusion 15 is allowed. Thereby, the short-side side wall portion 8 is connected (pivotally supported) to the short-side base portion 6 so as to be rotationally displaceable.

[0031] As shown in Fig. 7, the long-side base portion 7 includes a long-side base inner lower vertical wall portion 52 extending upward from the long-side edge portion of the upper surface base wall portion 35 of the bottom wall, a long-side base middle wall portion 53 extending outward from the upper edge portion of the long-side base inner lower vertical wall portion 52 to the outside of the container body 2, a long-side base inner upper vertical wall portion 54 extending upward from the edge portion on the outside of the container body 2 of the long-side base middle wall portion 53, a long-side base upper stage wall portion 55 extending outward from the upper edge portion of the long-side base inner upper vertical wall portion 54 to the outside of the container body 2, and a long-side base outer vertical wall portion 56 extending downward from the edge portion on the outside of the container body 2 of the long-side base upper stage wall portion 55. Both side portions of the long-side base upper stage wall portion 55 are inclined upward toward the side, are 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 side of both side portions of the long-side base upper stage wall portion 55.

[0032] As shown in Fig. 3, the long-side bearing portion 51 of the present embodiment is provided on both sides of the short-side base portion 6 of the short-side base inner lower vertical wall portion 42. The long-side protrusion portion 25 is inserted into the long-side bearing portion 51 and is substantially fitted to allow the rotation of the long-side protrusion portion 25. Thereby, the long-side side wall portion 9 is rotatably connected (pivotally supported) to the short-side base portion 6. In particular, in the present embodiment, the long-side bearing portion 51 extends from the lower edge portion to the upper edge portion of the short-side base inner lower vertical wall portion 42, and when the long-side side wall portion 9 is in the folded posture (the short-side side wall portion 8 remains in the standing posture), the long-side side wall portions 9 in the folded posture are allowed to be stacked vertically within the range where the long-side protrusion portion 25 is inserted into the long-side bearing portion 51.

[0033] Also, as shown in Figs. 8, 9, 27, etc., in the present embodiment, the portion including the lower side portions of the short-side base outer vertical wall portion 47 and the long-side base outer vertical wall portion 56 has a double-wall structure in the inner and outer circumferential directions (the inner and outer directions of the container body 2) of the short-side base portion 6 and the long-side base portion 7. More specifically, the portion including the lower side portions of the short-side base outer vertical wall portion 47 and the long-side base outer vertical wall portion 56 (the second mating wall portion) includes a bottom wall inner tip wall portion 57 (the second inner tip wall portion) and a bottom wall outer tip wall portion 58 (the second outer tip wall portion) that are spaced apart from each other and opposed in the inner and outer circumferential 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.

[0034] As shown in Fig. 10, the bottom wall lower surface forming portion 32 includes a bottom wall lower surface base wall portion 61 having a substantially rectangular shape in a bottom view and a bottom wall orthogonal wall portion 62 protruding upward from the outer peripheral edge of the bottom wall lower surface base wall portion 61. Also, as shown in Fig. 12, on the lower surface side of the bottom wall lower surface forming portion 32, a support portion 63 is provided that protrudes downward from the lower surface of the bottom wall lower surface base wall portion 61 and is grounded and supported on the installation surface when the container 1 is installed on an installation surface such as a floor surface. The support portion 63 is composed of a frame-shaped portion provided at a position spaced inward from the outer peripheral edge of the bottom wall lower surface base wall portion 61 and a lattice-shaped portion provided inside the frame-shaped portion.

[0035] As shown in FIG. 10, FIG. 11, etc., a bottom wall insertion tip wall portion 64 (first tip wall portion), which is formed so as to reduce the thickness on the outer peripheral side of the bottom wall orthogonal wall portion 62, is provided at a portion (first mating wall portion) including the upper side portion of the bottom wall orthogonal wall portion 62. Then, as shown in FIG. 27, etc., by inserting (press-fitting) the bottom wall insertion tip wall portion 64 into the bottom wall insertion space 59, the inner bottom wall tip wall portion 57, the outer bottom wall tip wall portion 58, and the bottom wall insertion tip wall portion 64 are brought into a fitted state. As a result, the short-side base outer vertical wall portion 47, the long-side base outer vertical wall portion 56, and the bottom wall orthogonal wall portion 62 are brought into an engaged state, and thus, the bottom wall base component portion 31 and the bottom wall lower surface component portion 32 are brought into an assembled state. Further, a heat insulating member 14 made of foamed polyurethane is provided in a bottom wall internal space 33 formed between the bottom wall base component portion 31 and the bottom wall lower surface component portion 32. Incidentally, the portion including the upper side portion of the bottom wall orthogonal wall portion 62 may be configured in two layers so as to form an insertion space, and a portion (single layer) including the lower side portions of the short-side base outer vertical wall portion 47 and the long-side base outer vertical wall portion 56 may be configured to be inserted into such an insertion space.

[0036] As shown in FIGS. 5 and 24, a base receiving recess 71 for receiving an upper portion of the short-side base portion 6 (a portion composed of the short-side base inner upper vertical wall portion 44, the short-side base upper step wall portion 46, and the short-side base outer vertical wall portion 47) is provided at the lower portion on the outer surface side of the short-side side wall portion 8 in the assembled state of the container body 2. As a result, in the assembled state of the container body 2, the lower portion of the short-side side wall portion 8 and the upper portion of the short-side base portion 6 overlap in the inner and outer directions of the container body 2, and the upper edge portion of the base receiving recess 71 and the short-side base upper step wall portion 46 come into contact with each other vertically. In particular, in the present embodiment, in the assembled state of the container body 2, the outer surface of the short-side side wall portion 8 is configured to be positioned outward of the outer surface of the bottom wall component portion 4 (short-side base portion 6).

[0037] Further, as shown in FIG. 5, on the inner surface side of the short-side base portion 6, a base-side engaging portion 72 is provided which protrudes inward of the container body 2 from the upper portion of the short-side inner upper vertical wall portion 44. On the other hand, at a portion corresponding to the base receiving recess 71 of the short-side side wall portion 8, a concave side wall-side engaging portion 73 into which the base-side engaging portion 72 is inserted when the short-side side wall portion 8 is in an upright posture is provided. For example, when lifting the assembled container body 2 by grasping the short-side side wall portion 8, the side wall-side engaging portion 73 and the base-side engaging portion 72 are engaged with each other vertically (the lower side portion of the base-side engaging portion 72 is supported by the lower edge portion of the recess constituting the side wall-side engaging portion 73, and the bottom wall constituting portion 4 is lifted). Thereby, when lifting the assembled container body 2 by grasping the short-side side wall portion 8, the burden on the structure that rotatably connects the short-side side wall portion 8 (and the long-side side wall portion 9) and the bottom wall constituting portion 4 is reduced, and a situation such as the short-side shaft protrusion 15 falling off from the short-side bearing portion 41 (the long-side shaft protrusion 25 falling off from the long-side bearing portion 51) is prevented.

[0038] As shown in FIGS. 3 and 13, the lid body 3 includes a lid main body 81 capable of closing the opening on the upper surface side of the assembled container body 2, and a fixture 82 attached to the lid main body 81 for maintaining the covered state of the container 1 (preventing the lid body 3 from falling off the assembled container body 2). The fixtures 82 are provided in a pair corresponding to the central portions of the pair of opposite short side portions of the lid body 3. In addition, as shown in FIG. 24, the lid main body 81 is integrally formed of polypropylene by blow (hollow) molding so that a lid internal space 83 is formed. In the lid internal space 83, a heat insulating member 14 made of foamed polyurethane is provided.

[0039] Further, as shown in FIGS. 4, 22, etc., the container body 2 protrudes upward from the upper sides of the short-side side wall portion 8 and the long-side side wall portion 9, and is provided with a side wall upper protrusion 85 as an assembly regulation portion provided along the entire circumference of the upper sides of the short-side side wall portion 8 and the long-side side wall portion 9. The upper surface of the side wall upper protrusion 85 is disposed outside the inner edge of the upper sides of the short-side side wall portion 8 and the long-side side wall portion 9 on the inner side of the container body 2 in the thickness direction of the corresponding short-side side wall portion 8 and long-side side wall portion 9. Further, among the upper surfaces of the side wall upper protrusion 85, the outer portion of the container body 2 is configured to be one step lower than the inner portion of the container body 2.

[0040] On the other hand, as shown in FIGS. 13, 22, etc., the lid body 81 of the lid 3 is formed so as to open downward along the outer peripheral edge of the lower surface of the lid body 81 and to the outer peripheral side of the lid body 81 (the centrifugal side with respect to the central portion of the lid body 81). In the covering state of the container 1, a lid retaining recess 86 for accommodating the side wall upper protrusion 85 is provided. Further, a lid auxiliary protrusion 87 protruding downward from the outer peripheral edge of the lid body 81 is provided on the upper edge portion of the lid retaining recess 86. The lower end portion of the lid auxiliary protrusion 87 is located above the lower surface of the lid body 81. When the container 1 is in the covering state, in the vertical direction, the lower surface of the lid body 81 substantially abuts against a portion of the upper sides of the short-side side wall portion 8 and the long-side side wall portion 9 that is located inside the container body 2 with respect to the side wall upper protrusion 85. The upper edge portion of the lid retaining recess 86 abuts against the inner portion of the container body 2 that is one step higher among the upper surfaces of the side wall upper protrusion 85, and the lower end portion of the lid auxiliary protrusion 87 substantially abuts against the outer portion of the container body 2 that is one step lower among the upper surfaces of the side wall upper protrusion 85. Further, in the inner-outer direction of the container body 2 (the inner-outer circumferential direction of the lid body 81), a side edge portion on the central side of the lid body 81 in the lid retaining recess 86 (hereinafter referred to as "lid-side regulating portion 88") and the side wall upper protrusion 85 are configured to substantially abut against each other. By the lid-side regulating portion 88 and the side wall upper protrusion 85 abutting against each other, the folding posture side of the long-side side wall portion 9 in the standing posture is prevented from tilting and displacing, and the relative displacement of the lid 3 in the horizontal direction with respect to the container body 2 in the assembled state is regulated. In the present embodiment, the lid-side regulating portion 88 constitutes an assembly regulating portion.

[0041] Further, in the inner and outer direction of the container body 2 (the inner and outer circumferential direction of the lid body 81), the side wall upper edge protrusion 85 is located on the outer side of the container body 2 rather than the outer peripheral surface of the support portion 63. Thus, when the container bodies 2 in the assembled state are stacked vertically, the support portion 63 of the upper container body 2 is inserted into the inner circumferential side of the side wall upper edge protrusion 85 of the lower container body 2 and abuts or approaches it. At the same time, a portion of the lower surface of the bottom wall component 4 of the upper container body 2 on the outer peripheral side of the bottom wall portion 5 (the centrifugal side with respect to the central portion of the bottom wall portion 5) rather than the support portion 63 abuts and is supported by the upper surface of the side wall upper edge protrusion 85 of the lower container body 2, and the lower surface of the support portion 63 of the upper container body 2 abuts and is supported by a portion on the inner side of the container body 2 rather than the side wall upper edge protrusion 85 among the upper edge portions of the short side side wall portion 8 and the long side side wall portion 9 of the lower container body 2.

[0042] Also, as shown in FIGS. 3, 22, etc., on the lid body 81, a lid body upper surface protrusion 89 that protrudes upward from a range including the central portion of each short side portion of the upper surface of the lid body 81 and a range including the central portion of each long side portion is provided. In the inner and outer circumferential direction of the lid body 81, the lid body upper surface protrusion 89 is located on the outer side (the centrifugal side with respect to the central portion of the lid body 81) rather than the inner edge portion (lid side regulating portion 88) of the lid retaining recess 86. Note that the boundary portion between the upper surface and the outer surface of the lid body upper surface protrusion 89 has an R chamfered shape.

[0043] Then, when the containers 1 in the covered state are stacked vertically (see FIG. 29), the support portion 63 of the upper container 1 is inserted into the region surrounded by the lid body upper surface protrusion 89 of the lower container 1 (the inner circumferential side of the lid body upper surface protrusion 89) and abuts or approaches the inner surface (the central side surface of the lid body 81) of the lid body upper surface protrusion 89. At the same time, a portion of the lower surface of the bottom wall component 4 of the upper container 1 on the outer side rather than the support portion 63 abuts and is supported by the upper surface of the lid body upper surface protrusion 89 of the lower container body 2, and the support portion 63 of the upper container 1 abuts and is supported by the upper surface of the lid body 81 of the lower container 1.

[0044] As shown in FIGS. 1, 3, 14 to 16, the fixture 82 includes a pair of left and right attachment portions 91 attached to the lid body 81, and an opposing portion 92 that opposes the outer surface of the container body 2 (short-side side wall portion 8) in the covered state of the container 1. The attachment portion 91 includes a base plate portion 93 that extends vertically facing the outer peripheral surface of the lid body 81, an upper engaging portion 94 having a substantially C-shaped cross-section that opens downward with one end side connected to the upper edge portion of the base plate portion 93, and a lower engaging portion 95 that protrudes in a direction substantially orthogonal to the lower edge portion of the base plate portion 93 so as to face the upper engaging portion 94 vertically. A claw portion 95a that protrudes upward is provided at the tip of the lower engaging portion 95.

[0045] On the other hand, as shown in FIGS. 17, 18, and 23, a mounting portion 101 for mounting the fixture 82 is provided at the center of the short side portion of the lid body 81. In the mounting portion 101, the outer peripheral surface of the lid body 81 forms a shape that is recessed in one step toward the center side of the lid body 81, and the lid upper surface protrusion 89 is also configured to be slightly smaller. This prevents the fixture 82 from protruding outward more than the portions adjacent to its left and right. Further, in the mounting portion 101, the lid auxiliary protrusion 87 is omitted, and claw engagement recesses 102 that are recessed upward are provided at positions corresponding to the pair of left and right attachment portions 91 on the upper edge portion of the lid retaining recess 86. By mounting the fixture 82 on the mounting portion 101, the upper engaging portion 94 of the attachment portion 91 is engaged so as to wrap around the lid upper surface protrusion 89, and the claw portion 95a of the lower engaging portion 95 is inserted into and engaged with the claw engagement recess 102 of the mounting portion 101. As shown in FIG. 13 and the like, each attachment portion 91 is provided with a protrusion that substitutes for the lid auxiliary protrusion 87 (the portion where the opposing portion 92 is provided is where the opposing portion 92 substitutes for the lid auxiliary protrusion 87), and due to the formation of a portion where the lid auxiliary protrusion 87 is not provided at the butting portion between the lid body 3 and the container body 2, it suppresses a decrease in heat insulation performance and the easy entry of dust and the like.

[0046] Further, as shown in FIG. 14 and the like, the opposing portion 92 is located between the pair of mounting portions 91 in the lateral width direction of the fixture 82. Further, in the opposing portion 92, a locking hole portion 103 as a locking portion penetrating in the thickness direction of the opposing portion 92 is provided at a position spaced inward from the outer peripheral edge of the opposing portion 92. In addition, the lower edge portion of the opposing portion 92 is curved such that the central portion in the lateral width direction of the opposing portion 92 is the lowermost portion.

[0047] On the other hand, as shown in FIGS. 19 to 21, FIG. 25, and FIG. 26, in the central portion in the lateral width direction of the upper part on the outer surface side of each short-side side wall portion 8, a concave assembly accommodation portion 104 for accommodating the opposing portion 92 of the lid body 3 in the covered state of the container 1 is provided. Thereby, in the covered state of the container 1, the opposing portion 92 does not protrude outward from the outer surface of the short-side side wall portion 8. Further, as shown in FIG. 21, in the lateral width direction of the short-side side wall portion 8, the central portion of the opposing portion 92 and the central portion of the assembly accommodation portion 104 are configured to be substantially in the same position. Further, as shown in FIGS. 19 and 20 and the like, a locking protrusion portion 105 as a locked portion protruding outward from the container body 2 from the assembly accommodation portion 104 is provided. The locking protrusion portion 105 has a shape in which the width gradually widens downward with a part of the upper portion as the top when the corresponding short-side side wall portion 8 is viewed from the front (substantially triangular shape when viewed from the front). Further, as shown in FIG. 26 and the like, the upper surface of the locking protrusion portion 105 is inclined downward toward the outer side of the container body 2. In particular, the portion on the outer side of the container body 2 of the upper surface of the locking protrusion portion 105 is shaped with an R chamfer so as to be more greatly inclined downward. On the other hand, the lower surface of the locking protrusion portion 105 extends substantially horizontally. Then, as shown in FIG. 25, by covering the container 1, the locking protrusion portion 105 is inserted into the locking hole portion 103 and is brought into a locked state (with the lower edge portion of the locking hole portion 103). Note that it is sufficient that at least the portion on the outer side of the container body 2 of the upper surface of the locking protrusion portion 105 is inclined downward toward the outer side of the container body 2.

[0048] Also, as shown in FIGS. 20, 21, 25, etc., on the short-side side wall portion 8, an operation recess 106 is formed in a range including a portion facing the lower side portion of the facing portion 92 in the covered state of the container 1, and allows contact with the back side of the facing portion 92. The operation recess 106 is provided in such a manner that the lower portion of the assembly housing portion 104 is largely recessed inwardly of the container body 2. As shown in FIG. 20, the lower edge portion of the operation recess 106 follows the lower edge portion of the facing portion 92, curves such that the central portion in the lateral width direction of the short-side side wall portion 8 is at the lowermost portion, and as shown in FIG. 25, slopes downward toward the outer side of the container body 2. Incidentally, as shown in FIG. 21, in the lateral width direction of the short-side side wall portion 8, since the central portion of the facing portion 92 and the central portion of the operation recess 106 are substantially at the same position, in any portion in the lateral width direction of the facing portion 92, the distance between the lower edge portion of the facing portion 92 and the lower edge portion of the operation recess 106 (the edge portion on the outer side of the container body 2) in the vertical direction is substantially constant.

[0049] As shown in FIGS. 20 and 26, on the outer surface side of the short-side side wall portion 8, at a position below the operation recess 106, a hand-hold recess 107 is provided that allows an operator to insert a fingertip inwardly from the outer surface of the short-side side wall portion 8, and is configured such that the fingertip can be hooked on the upper edge portion to carry the container 1. Further, a folded-back portion 108 that extends downward from the outer edge on the outer side of the container body 2 is provided on the upper edge portion of the hand-hold recess 107. As shown in FIGS. 20 and 21, the folded-back portion 108 curves such that the central portion in the lateral width direction of the corresponding short-side side wall portion 8 is at the lowermost portion corresponding to the curvature of the lower edge portion of the operation recess 106. Also, the lateral width of the hand-hold recess 107 is configured to be wider than the lateral width of the operation recess 106, but in the lateral width direction of the short-side side wall portion 8, the central portion of the hand-hold recess 107 and the central portion of the operation recess 106 are at the same position. Further, the vertical width of the hand-hold recess 107 is configured to be larger than the distance between the facing portion 92 and the lower edge portion (outer end portion) of the operation recess 106 in the covered state of the container 1, and is configured such that it is easier (more prominent) for a fingertip to enter the hand-hold recess 107 than the operation recess 106.

[0050] As shown in Fig. 27, in the present embodiment, the assembly part (hereinafter referred to as "assembly part 109") of the bottom wall base component 31 and the bottom wall lower surface component 32 is formed such that the bottom wall insertion tip wall part 64 of the bottom wall orthogonal wall part 62 is inserted between the inner tip wall part 57 and the outer tip wall part 58 of the bottom wall of the short side base outer vertical wall part 47 and the long side base outer vertical wall part 56 to be in a fitted state, so the thickness is relatively large. In the present embodiment, instead of making the assembly part 109 thick by protruding it toward the bottom wall internal space 33 side, it is configured to be thick by protruding it toward the outer peripheral side of the bottom wall part 5. With this configuration, in the inner and outer peripheral directions of the bottom wall part 5, the assembly part 109 of the bottom wall component 4 is located on the outermost side (see Fig. 24).

[0051] Also, as described above, in the assembled state of the container body 2, the outer surface of the short side side wall part 8 is located outside the outer surface of the bottom wall component 4 (short side base part 6) (see Fig. 24). In the present embodiment, in the covered state of the container 1, the opposing part 92 is located outside the container body 2 with respect to the outer surface of the short side base part 6. Therefore, when the container 1 is in a placed state, as shown in Fig. 28, the opposing part 92 is arranged to face the outer surface of the bottom wall component 4 (short side base part 6) without causing deformation of the opposing part 92. As a result, in the placed state of the container 1, the upper side parts (short side base upper stage wall part 46 and support wall part 49) of the short side base part 6 of the container body 2 in the folded state are inserted into the lid stop recess 86 of the lid body 3 in a relative manner, the upper edge part of the lid stop recess 86 abuts against and is supported by the upper surface of the short side base part 6, and the lid side regulating part 88 and the base side engaging part 72 as a placement regulated part protruding from the short side base part 6 (short side base inner upper vertical wall part 44) toward the central side of the bottom wall part 5 come into contact or close proximity. Note that in the present embodiment, the lid side regulating part 88 constitutes the placement regulating part.

[0052] Furthermore, as shown in FIG. 28, in the present embodiment, the assembling portion 109 of the bottom wall component 4 is the outermost part when the container body 2 in the folded state is viewed in plan. Also, in the state where the container 1 is placed, the outer peripheral surface of the lid body 3 and the outer surface of the assembling portion 109 of the bottom wall component 4 are configured to be located on the same virtual plane extending in the vertical direction, and the outer peripheral surface of the lid body 3 (lid main body 81) and the outer surface of the assembling portion 109 are the outermost parts when the container 1 in the placed state is viewed in plan. In addition, as shown in FIG. 24, in the covering state of the container 1, the outer surface of the assembling portion 109 of the bottom wall component 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 main body 81 are configured to be located on the same virtual plane extending in the vertical direction. In the present embodiment, the outer peripheral surface of the lid main body 81 and the outer surface of the opposing portion 92 are substantially flush, but the opposing portion 92 may be configured to be located on the inner side of the container body 2 rather than the outer peripheral surface of the lid main body 81 in the inner and outer directions of the container body 2.

[0053] Also, as shown in FIG. 30, in the present embodiment, the lid bodies 3 can be stacked one above the other in a state where the lid bodies 3 are in the same orientation (in the present embodiment, the facing portions 92 of the fixtures 82 project upward and are upside-down). That is, as shown in FIGS. 31, 32, etc., the fixture 82 is provided with a receiving recess 110 capable of receiving the facing portion 92 of another lid body 3 (the lower lid body 3 in FIGS. 31, 32, etc.) in the state where the lid bodies are stacked. As shown in FIG. 14, the receiving recess 110 is located between the base plate portions 93 of the pair of left and right mounting portions 91. As shown in FIG. 32, the outer surface of the receiving recess 110 is provided at a position slightly farther inward of the container body 2 than the outer surfaces of the base plate portion 93 and the facing portion 92 by a distance slightly longer than the thickness of the facing portion 92. Then, as shown in FIGS. 31, 32, and 34, by making the lid bodies 3 in the upside-down orientation into the state where the lid bodies are stacked, the facing portion 92 of the lower lid body 3 is inserted into the receiving recess 110 of the upper lid body 3. As shown in FIGS. 32 and 33, the lid upper surface protrusion 89 of the upper lid body 3 as the lid stacking restricted portion is inserted into the lid locking recess 86 of the lower lid body 3 and faces and abuts or is close to the lid side restricting portion 88 as the lid stacking restricting portion in the horizontal direction. Further, in the present embodiment, when a force is applied to the stacked lid bodies 3 such that the upper and lower lid bodies 3 are relatively displaced in the horizontal direction, the lid side restricting portion 88 of the lower lid body 3 and the lid upper surface protrusion 89 of the upper lid body 3 abut simultaneously (see FIG. 33). At the same time, the facing portion 92 of the lower lid body 3 (the facing portion 92 of the fixture 82 provided on the side of the short side opposite to the short side portion of the lid body 3 provided with the lid side restricting portion 88 that abuts against the lid upper surface protrusion 89 of the upper lid body 3) and the receiving recess 110 of the upper lid body 3 are configured to abut (see FIG. 32), and cooperate to restrict the relative displacement in the horizontal direction between the lid bodies 3 stacked one above the other.

[0054] Also, as shown in FIGS. 22, 25, etc., in the covered state of the container 1, the inner surface side (assembly regulation portion) of the side wall upper protrusion 85 of the one short side side wall portion 8 and the lid side regulation portion 88 (assembly regulation portion) are in contact with each other, and at the same time, the outer surface side (assembly accommodation portion 104) of the other short side side wall portion 8 and the opposing portion 92 are in contact with each other. It is configured to restrict the relative displacement in the horizontal direction between the lid body 3 and the container body 2 in cooperation. Further, as shown in FIG. 28, in the placed state of the container 1, the protruding direction tip portion (placement regulation portion) of the base side engaging portion 72 of the one short side base portion 6 and the lid side regulation portion 88 (placement regulation portion) are in contact with each other, and at the same time, the outer surface side of the other short side base portion 6 and the opposing portion 92 are in contact with each other. It is configured to restrict the relative displacement in the horizontal direction between the lid body 3 and the container body 2 in cooperation.

[0055] In addition, a recess is provided at approximately the center of the short side portion on the lower surface side of the bottom wall component 4, which allows the container 1 to be lifted by hanging a fingertip on the lower surface side of the bottom wall component 4. As shown in FIG. 29, when stacking containers 1 in the covered state or the placed state vertically, the recess is aligned vertically with the receiving recess 110 of the lower container 1, making it easier 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, and the upper surface of the lid body 3 of the upper container 1 when two containers 1 in the placed state are stacked in two layers is configured to be at the same height as the upper surface of the lid body 3 of the container 1 in the covered state.

[0056] As described in detail above, according to the present embodiment, the lid body 3 (fastener 82) having the opposing portion 92 that protrudes below the lower surface of the lid main body 81 is capable of receiving the opposing portion 92 of another lid body 3 when the lid bodies 3 are stacked vertically to form a stacked state of the lid bodies. For this reason, in the stacked state of the lid bodies, a situation where the opposing portion 92 of the lid body 3 interferes with another lid body 3 and cannot be used (the lid main bodies 81 cannot be brought into contact with each other, or the lid main bodies 81 cannot be brought into contact and stacked without forcibly deforming the opposing portion 92) can be avoided, and the height of the lid body 3 in the stacked state of the lid bodies can be made as low as possible. Furthermore, the lid bodies 3 can be stacked without shifting the center of gravity position, and the stabilization of the stacked state of the lid bodies can be achieved while suppressing an increase in the installation space in the horizontal direction. As a result, it is possible to improve the efficiency when storing and transporting the lid bodies 3 together. Further, in the stacked state of the lid bodies, it is possible to avoid a situation where an excessive load is applied to the opposing portion 92 or the lid main body 81 due to elastic deformation of the opposing portion 92 or the tip portion of the opposing portion 92 coming into contact with another lid main body 81 vertically, resulting in deformation, damage, etc., and it is possible to improve the durability of the lid body 3. In addition, in the covering state of the container 1, since the locking hole portion 103 provided so as to penetrate the opposing portion 92 is in a locked state with the locking projection portion 105 of the container main body 2, for example, when a locking projection portion is provided in the opposing portion 92 instead of the locking hole portion 103 (a locking hole portion or a locking recess is provided in the container main body 2), the thickness of the opposing portion 92 including the locking portion with the container main body 2 side (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 is not allowed to protrude outward from the outer peripheral surface of the lid main body 81, the depths of the receiving recess 110 and the mounting portion 101 can be made as shallow as possible, and a decrease in heat insulation performance due to the formation of a relatively large recess in the outer peripheral portion of the lid main body 81 can be avoided.

[0057] Furthermore, in the present embodiment, in the state where the lids 3 are stacked upside down, when the upper and lower lids 3 are about to relatively displace in the horizontal direction, the lid-side restricting portion 88 of the lower lid 3 and the lid upper surface protruding portion 89 of the upper lid 3 come into contact with each other, and at the same time, the opposing portion 92 of the lower lid 3 and the receiving recess 110 of the upper lid 3 are configured to come into contact with each other. For this reason, for example, compared with a configuration in which the lid-side restricting portion 88 and the lid upper surface protruding portion 89 are not provided, it is possible to prevent an excessive load from being applied to the opposing portion 92 when restricting the relative displacement in the horizontal direction between the lids 3 in the lid stacking state. Therefore, the opposing portion 92 can be protected, and the durability of the opposing portion 92 and thus the lid 3 can be improved.

[0058] Also, by covering the container body 2 in the assembled state with the lid 3, the locking hole portion 103 of the opposing portion 92 of the lid 3 is brought into a locked state with the locking projection portion 105 of the container body 2, so that the covering state of the container 1 can be stabilized. Further, by placing the lid 3 on the container body 2 in the folded state, the opposing portion 92 is disposed opposite to the outer surface side of the bottom wall constituting portion 4 (the short-side base portion 6), and the lid 3 (the lid main body 81) is configured to be placed on the upper surface of the short-side base portion 6. For this reason, while preventing a load from being applied to the opposing portion 92 [it is impossible to place (abut and support) the lid main body 81 on the upper surface of the short-side base portion 6 if the opposing portion 92 and the short-side base portion 6 interfere with each other], the lid 3 is stably supported by the short-side base portion 6, stabilizing the placement state of the container 1 and minimizing the height of the container 1 in the placed state. Therefore, the container body 2 and the lid 3 in the folded state can be set together in a form as compact as possible, and as a result, the storage and transportation of the container 1 in the placed state can be efficiently performed.

[0059] Also, when the lid 3 attempts to horizontally displace relative to the container body 2 in the covered state of the container 1, the side wall upper protrusion 85 of one short side wall portion 8 and the lid side regulating portion 88 come into contact with each other, and at the same time, the short side wall portion 8 (assembly housing portion 104) of the other short side wall portion 8 and the opposing portion 92 come into contact with each other. Further, in the placed state of the container 1, the base side engaging portion 72 of one short side base portion 6 and the lid side regulating portion 88 come into contact with each other, and at the same time, the other short side base portion 6 and the opposing portion 92 come into contact with each other. For this reason, it is possible to prevent an excessive load from being applied to the opposing portion 92 when regulating the relative displacement in the horizontal direction between the lid 3 and the container body 2 in each of the covered state and the placed state of the container 1. Therefore, the opposing portion 92 can be protected, and the durability of the opposing portion 92 and thus the lid 3 can be improved.

[0060] The short side wall portion 8 is provided with an operation recess 106 that allows contact with the back surface side of the opposing portion 92 corresponding to the lower side of the opposing portion 92 in the covered state of the container 1. The lower edge portion of the operation recess 106 is curved such that the central portion in the lateral width direction is the lowest portion, and is inclined downward toward the outside of the container body 2. For this reason, when the container 1 is in the covered state, it becomes easier to insert a fingertip into the operation recess 106 that opens to the outside of the container body 2 below the opposing portion 92, and it becomes easier to attempt contact with the back surface side of the opposing portion 92 through the operation recess 106. Further, in the lateral width direction of the short side wall portion 8, the central portion in the lateral width direction of the operation recess 106 and the central portion in the lateral width direction of the opposing portion 92 coincide, and when a fingertip is inserted into the operation recess 106, the fingertip can be placed at a suitable position of the opposing portion 92. Therefore, it is possible to improve the workability when operating the opposing portion 92 to release the locked state between the locking hole portion 103 and the locking protrusion 105.

[0061] Also, regarding the folded-back portion 108 of the hand-holding recess 107, corresponding to the curvature of the lower edge of the operation recess 106, it is curved such that the central portion in the lateral width direction is the lowest part. For this reason, when a fingertip is placed on the upper edge portion of the hand-holding recess 107, finger joints and the like can be suitably placed on the folded-back portion 108 as well. Therefore, it is possible to improve the workability when carrying the container 1 by placing a fingertip on the hand-holding recess 107 and the like.

[0062] The locking projection 105 has a substantially triangular shape with a gradually increasing lateral width downward with a part of the upper portion as the top when the short-side side wall portion 8 is viewed from the front, and the upper surface of the locking projection 105 is inclined downward toward the outer side of the container body 2. For this reason, when covering the container body 2 in the assembled state with the lid body 3 and locking the locking hole portion 103 to the locking projection 105, it is possible to prevent a situation where the lower side portion of the opposing portion 92 is caught by the locking projection 105. Therefore, while suppressing damage to the opposing portion 92 and the locking projection 105, etc., the lid body 3 can be covered on the container body 2 in the assembled state relatively smoothly.

[0063] The bottom wall component 4 is configured by assembling the bottom wall base component 31 and the bottom wall lower surface component 32, and providing a heat insulating member 14 in the bottom wall internal space 33 formed between the bottom wall base component 31 and the bottom wall lower surface component 32. For this reason, the heat insulation performance of the bottom wall component 4 can be enhanced. Also, by providing the assembling portion 109 of the bottom wall base component 31 and the bottom wall lower surface component 32 to protrude outward instead of the inner side (the bottom wall internal space 33 side) of the bottom wall component 4, the heat insulating member 14 can be suitably provided without narrowing the bottom wall internal space 33. Furthermore, when the container 1 in the placed state is viewed in plan view, the outermost part of the container 1 is constituted by the assembling portion 109 (and the outer peripheral surface of the container body 81). For this reason, for example, when the opposing portion 92 is the outermost part when the container 1 is viewed in plan view in the placed state of the container 1, and other parts are configured to be located closer to the central portion side of the bottom wall portion 5 than the opposing portion 92, it is possible to suppress a situation where a separate body easily collides with the opposing portion 92. Therefore, damage to the opposing portion 92 and the like in the placed state of the container 1 can be suppressed.

[0064] It is not limited to the description content of the above embodiment, and for example, it may be implemented as follows. Of course, other application examples and modification examples not illustrated below are also naturally possible.

[0065] (a) In the above embodiment, in the state where the lid bodies 3 are stacked upside down, when the lid-side regulating portion 88 of the lower lid body 3 and the lid upper surface protrusion 89 of the upper lid body 3 come into contact with each other, while this contact is maintained, the opposing portion 92 of the lower lid body 3 and the receiving recess 110 of the upper lid body 3 can come into contact with each other (when the peripheral portion is slightly bent or slightly tilted, etc.). Or, in the state where the lid bodies 3 are stacked upside down, when the lid-side regulating portion 88 of the lower lid body 3 and the lid upper surface protrusion 89 of the upper lid body 3 are in 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. Further, in the above embodiment, in the state where the lid bodies are stacked, the lid upper surface protrusion 89 of a predetermined lid body 3 is configured to come into contact with the lid-side regulating portion 88 of another lid body 3 to regulate the relative displacement in the horizontal direction between the lid bodies 3. However, for example, the lid upper surface protrusion 89 of a predetermined lid body 3 may be configured to come into contact with the lid auxiliary protrusion 87 of another lid body 3 to regulate the relative displacement in the horizontal direction between the lid bodies 3. In this case, in the state where the lid bodies are stacked, when the lid upper surface protrusion 89 of a predetermined lid body 3 and the lid auxiliary protrusion 87 of another lid body 3 come into contact with each other, at the same time, the opposing portion 92 of the other lid body 3 and the receiving recess 110 of the predetermined lid body 3 come into contact with each other (or after the lid upper surface protrusion 89 of the predetermined lid body 3 and the lid auxiliary protrusion 87 of the other lid body 3 come into contact with each other, the opposing portion 92 of the other lid body 3 and the receiving recess 110 of the predetermined lid body 3 can come into contact with each other, or when the lid upper surface protrusion 89 of the predetermined lid body 3 and the lid auxiliary protrusion 87 of the other lid body 3 come into contact with each other, the opposing portion 92 of the other lid body 3 and the receiving recess 110 of the predetermined lid body 3 may not come into contact with each other). Note that it is also possible to configure such that just by making the lid bodies 3 stacked upside down, the lid-side regulating portion 88 of the lower lid body 3 and the lid upper surface protrusion 89 of the upper lid body 3 come into contact with each other, or a clearance is set, and within the range of the clearance, the upper and lower lid bodies 3 are relatively displaced in the horizontal direction and the lid-side regulating portion 88 of the lower lid body 3 and the lid upper surface protrusion 89 of the upper lid body 3 come into contact with each other.

[0066] (b) In the above-described embodiment, when the lid-side regulating portion 88 and the upper-side protruding portion 85 of the side wall come into contact with each other in the covered state of the container 1, the contact can be maintained while the opposing portion 92 and the short-side side wall portion 8 (assembly and housing portion 104) can come into contact with each other (when the peripheral portion is slightly bent or tilted, etc.), or in the covered state of the container 1, when the lid-side regulating portion 88 and the upper-side protruding portion 85 of the side wall are in contact with each other, the opposing portion 92 and the short-side side wall portion 8 may not come into contact with each other. Further, when the lid-side regulating portion 88 and the base-side engaging portion 72 of the short-side base portion 6 come into contact with each other in the placed state of the container 1, the contact can be maintained while the opposing portion 92 and the bottom wall forming portion 4 (short-side base portion 6) can come into contact with each other (when the peripheral portion is slightly bent or tilted, etc.), or in the placed state of the container 1, when the lid-side regulating portion 88 and the base-side engaging portion 72 of the short-side base portion 6 are in contact with each other, the opposing portion 92 and the bottom wall forming portion 4 (short-side base portion 6) may not come into contact with each other. Note that, it is also possible to configure such that the lid-side regulating portion 88 and the upper-side protruding portion 85 of the side wall come into contact with each other only by covering the container 1, or a clearance is set and the lid body 3 and the container body 2 are relatively displaced horizontally within the range of the clearance, and the lid-side regulating portion 88 and the upper-side protruding portion 85 of the side wall come into contact with each other. Furthermore, it is also possible to configure such that the lid-side regulating portion 88 and the short-side base portion 6 (base-side engaging portion 72) come into contact with each other only by placing the container 1, or a clearance is set and the lid body 3 and the container body 2 are relatively displaced horizontally within the range of the clearance, and the lid-side regulating portion 88 and the short-side base portion 6 come into contact with each other.

[0067] (c) In the above-described embodiment, the fixture 82 having the opposing portion 92, the locking hole portion 103, and the receiving recess 110 is configured as a separate body from the lid body 81. However, the opposing portion 92, the locking hole portion 103, and the receiving recess 110 may be integrally formed with the lid body 81. Further, instead of the locking hole portion 103, a locking recess that is recessed in the thickness direction of the opposing portion 92 may be provided on the inner surface side of the opposing portion 92 (the surface on the central portion side of the lid body 81) so as to be in a locked state with the locking projection 105 in the covered state of the container 1. Furthermore, in the above-described embodiment, the fixture 82 is provided corresponding to each short side portion of the lid body 81, but it may be provided corresponding to each long side portion.

[0068] Also, in the above-described embodiment, in the folded state of the container body 2, the short side wall portion 8 is configured to be in the folded posture above the long side wall portion 9 in the folded posture. However, it may be configured such that the long side wall portion 9 is in the folded posture above the short side wall portion 8 in the folded posture. In addition, the hanging recess 107 may be provided on the long side wall portion 9 instead of the short side wall portion 8. However, it is desirable to provide the hanging recess 107 on a side wall portion having a configuration that can be engaged vertically with respect to the bottom wall component 4, such as the base side engaging portion 72 and the side wall side engaging portion 73. Further, holes penetrating the short side wall portion 8 may be provided in the operation recess 106 and the hanging recess 107.

[0069] (d) In the above-described embodiment, internal spaces are provided in the short-side side wall portion 8, the long-side side wall portion 9, the bottom wall component portion 4, and the lid body 3 (lid main body 81), and the heat insulating member 14 is provided in the internal spaces. However, with respect to some or all of these, the heat insulating member 14 may be omitted, or a configuration without an internal space may be adopted. Further, in the above-described embodiment, the lid main body 81 is integrally formed as a whole by blow molding, but it may be configured by connecting a plurality of members (for example, assembling the upper component portion constituting the upper surface side of the lid main body 81 and the lower component portion constituting the lower surface side of the lid main body 81, and providing the heat insulating member 14 in the lid internal space 83). In addition, in the above-described embodiment, the assembly site 109 of the bottom wall component portion 4 may not be provided over the entire circumference of the bottom wall component portion 4, or the protruding length of the assembly site 109 in the outer circumferential direction (centrifugal direction) of the bottom wall portion 5 may be configured to be partially different.

[0070] (e) Also, in the above-described embodiment, the short-side base component portion 11, the short-side inner surface component portion 12, the long-side base component portion 21, the long-side inner surface component portion 22, the bottom wall base component portion 31, the bottom wall lower surface component portion 32, the lid main body 81, and the fixture 82 are made of polypropylene, but they may be made of other polyolefin-based resins (such as polyethylene), or may be made of synthetic resins other than polyolefin-based resins (for example, ABS resin, AES resin, acrylic resin, polycarbonate, etc.).

Explanation of Reference Numerals

[0071] 1... Container, 2... Container body, 3... Lid, 4... Bottom wall component 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... Heat insulating member, 31... Bottom wall base component part, 32... Bottom wall lower surface component 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 part, 64... Bottom wall tip insertion wall part, 72... Base side engagement part, 81... Lid body, 82... Fixture, 85... Side wall upper edge protrusion, 86... Lid stop recess, 88... Lid side regulating part, 89... Lid body upper surface protrusion, 92... Opposing part, 103... Locking hole part, 105... Locking protrusion, 106... Operation recess, 107... Handhold recess, 108... Folding part, 109... Assembly site, 110... Receiving recess.

Claims

1. A substantially box-shaped container body that opens upward; A container including a lid body that is in a covering state with respect to an opening of the container body, the lid body has a facing portion that faces an outer surface of the container body when the lid body is covered with the container body, The facing portion is provided with a locking portion that can be locked to the container body when the lid body is placed on the container body, The locking portion is configured by forming a recess that is recessed in a thickness direction of the facing portion or a hole that penetrates the facing portion, the container body includes an engaging portion that protrudes outward from an outer surface of the side wall portion and is engaged with the engaging portion in the covered state, A container characterized in that the engaging portion has a shape having a portion whose width gradually increases downward, with a portion of the upper portion as the apex, when the corresponding side wall portion is viewed from the front, and at least the portion of the upper surface of the engaging portion facing outward from the container body is inclined downward toward the outside of the container body.

2. A substantially box-shaped container body that opens upward; A container including a lid body that is in a covering state with respect to an opening of the container body, the lid body has a facing portion that faces an outer surface of the container body when the lid body is covered with the container body, The facing portion is provided with a locking portion that can be locked to the container body when the lid body is placed on the container body, The locking portion is configured by forming a recess that is recessed in a thickness direction of the facing portion or a hole that penetrates the facing portion, the container body includes an engaging portion that protrudes outward from an outer surface of the side wall portion and is engaged with the engaging portion in the covered state, The side wall portion is provided with an operation recess that is formed in a range including a portion facing the lower side portion of the facing portion in the covered state and allows contact with a back side of the facing portion, A container characterized in that the lower edge of the operating recess is curved so that the central portion in the width direction of the corresponding side wall portion is the lowest portion, and is inclined downward toward the outside of the container body.

3. The side wall portion on which the operation recess is provided has a handhold recess provided below the operation recess, A folded portion is provided extending downward from an upper edge portion of the handle recess on the outer side of the container body, 3. The container according to claim 2, wherein the folded portion is curved so that the central portion in the width direction of the corresponding side wall portion is the lowest portion in correspondence with the curvature of the lower edge portion of the operation recess.

4. The container according to claim 2, characterized in that the center of the opposing portion and the center of the operation recess are configured to be at the same position in the width direction of the side wall portion in which the operation recess is provided.

5. 5. The container according to claim 1, wherein the container body and the lid are each provided with an internal space, and each internal space is provided with a heat insulating member.

Images