Transport container with lid

Abstract

To provide a container with a lid for transport that is easy to suppress water invasion into the container.SOLUTION: A container with a lid for transport 1 includes: a box-like container body 2 with an opening 20 on the top surface, and a lid 3 attached to the container body 2 so as to open and close the opening 20. The top surface of the lid 3 has a recess 4. The bottom surface 40 of the recess 4 includes: a first portion 40a that slopes downward toward the edge of the lid 3; a second portion 40b and a third portion 40c that are located so as to sandwich the first portion 40a and slope downward toward the first portion 40a.SELECTED DRAWING: Figure 1

Description

Technical Field

[0001] The present disclosure relates to a transport container with a lid.

Background Art

[0002] Patent Document 1 describes a container including a container body having a box shape with an open top surface, and a pair of rotary lids rotatably attached to the top surface of the container body.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] By the way, in the container described in Patent Document 1, recesses are provided on the upper surface of each of the pair of rotary lids. In this container, when it rains or the like, water accumulates in the recesses of the pair of rotary lids, and if the water overflows from the recesses, there is a risk that water will enter the container body through the gap between the pair of rotary lids or the connection portion of each rotary lid to the container body.

[0005] In view of the above circumstances, an object of the present disclosure is to propose a transport container with a lid that is likely to suppress the intrusion of water into the container.

Means for Solving the Problems

[0006] In order to solve the above problems, a transport container with a lid according to one aspect of the present disclosure includes a box-shaped container body having an opening on the upper surface, and a lid attached to the container body so as to open and close the opening. The upper surface of the lid has a recess. The bottom surface of the recess includes a first portion that slopes downward toward the edge of the lid, and a second portion and a third portion that are positioned so as to sandwich the first portion and slope downward toward the first portion. [Effects of the Invention]

[0007] In one embodiment of the lidded transport container relating to this disclosure, it is easier to prevent water from entering the container. [Brief explanation of the drawing]

[0008] [Figure 1] Figure 1 is a perspective view showing a transport container with a lid according to one embodiment. [Figure 2] Figure 2 is a perspective view showing the folded state of the same lidded transport container. [Figure 3] Figure 3 is a cross-sectional view along line AA in Figure 2. [Figure 4] Figure 4 is a perspective view showing the first lid of the same lidded transport container. [Figure 5] Figure 5 is a plan view showing the first lid of the same as above. [Figure 6] Figure 6 is a cross-sectional view along line BB in Figure 5. [Figure 7] Figure 7 is a cross-sectional view along the CC line in Figure 5. [Figure 8] Figure 8 is a perspective view showing the first lid as described above, viewed from the underside. [Modes for carrying out the invention]

[0009] (One embodiment) 1. Overview A lidded transport container 1 (hereinafter simply referred to as "container 1") according to one embodiment shown in Figure 1 comprises a box-shaped container body 2 having an opening 20 on its top surface, and a lid 3 attached to the container body 2 so as to open and close the opening 20. The top surface of the lid 3 has a recess 4. The bottom surface 40 of the recess 4 includes a first portion 40a that slopes downward toward the edge of the lid 3, and a second portion 40b and a third portion 40c that are positioned to sandwich the first portion 40a and slope downward toward the first portion 40a.

[0010] In one embodiment of the container 1 having the above configuration, when water such as rainwater or washing water is received on the bottom surface 40 of the recess 4 of the lid 3, this water can be directed to the edge of the lid 3 by the slope of the bottom surface 40. Here, in one embodiment of the container 1, the bottom surface 40 of the recess 4 is positioned so as to sandwich the first part 40a and includes a second part 40b and a third part 40c that slope downward toward the first part 40a. Therefore, in one embodiment of the container 1, compared to the case where the bottom surface 40 is composed of a sloped part with the same area as the first part 40a and one sloped part with the same area as the sum of the second part 40b and the third part 40c and that slopes downward toward this sloped part, it is easier to make the slope of the second part 40b and the third part 40c larger, thereby improving the drainage performance of the bottom surface 40. Therefore, in one embodiment of the container 1, the direction in which water received on the upper surface of the lid 3 flows can be restricted by the slope of the bottom surface 40 of the recess 4, making it easier to suppress water from entering the container 1.

[0011] 2.Details Next, the container 1 of this embodiment, shown in Figures 1 to 8, will be described in more detail with reference to the drawings. In the container 1 of this embodiment, the lid 3 has an overall rectangular shape in plan view. The lid 3 includes a first lid 3a and a second lid 3b arranged in a first direction along one side of the lid 3. In the following, the first direction along one side of the rectangular lid 3 in plan view will be referred to as the front-to-back direction, the second direction perpendicular to the first direction in plan view will be referred to as the left-to-right direction, and the directions perpendicular to both the first and second directions will be referred to as the up-and-down direction, and each component of the container 1 will be described accordingly.

[0012] 2-1. Container body As shown in Figure 1, the container body 2 is box-shaped with an opening 20 on its top surface. The container body 2 is a roughly rectangular box shape. The container body 2 has a longitudinal direction parallel to the left-right direction and a short direction parallel to the front-back direction.

[0013] In this embodiment, as shown in FIG. 2, the container body 2 is foldable. As shown in FIGS. 1 and 2, the container body 2 includes a rectangular plate-shaped bottom wall 21, a rectangular frame-shaped mouth frame 22 located above the bottom wall 21, and four side walls 23 detachably attached between the bottom wall 21 and the mouth frame 22. Each of the bottom wall 21, the mouth frame 22, and the four side walls 23 is made of synthetic resin.

[0014] The four side walls 23 are composed of a pair of first side walls 24 erected at the ends along the two short sides of the bottom wall 21 (i.e., the left and right ends), and a pair of second side walls 25 erected at the ends along the two long sides of the bottom wall 21 (i.e., the front and back ends).

[0015] Each of the pair of first side walls 24 is composed of a single plate. Each of the pair of first side walls 24 is detachable from the front and back ends of the bottom wall 21 and is also detachable from the mouth frame 22. A fitting structure (specifically, a recess) used for fitting with the bottom wall 21 is provided at one end (the lower end) of each of the pair of first side walls 24.

[0016] Each of the pair of second side walls 25 is composed of two plates rotatably connected to each other. Each of the pair of second side walls 25 can be switched between an assembled state where the two plates are arranged side by side in a single plate shape and a folded state where the two plates are stacked in the thickness direction. Each of the pair of second side walls 25 is detachable from the front and back ends of the bottom wall 21 and is also detachable from the mouth frame 22. Each of the pair of second side walls 25 stands at the front and back ends of the bottom wall 21 in the assembled state. A fitting structure (specifically, a recess) used for fitting with the bottom wall 21 is provided at the lower end of each of the pair of second side walls 25.

[0017] As shown in FIG. 3, the bottom wall 21 integrally has a rectangular plate-shaped bottom wall main body 210 that forms the main body, a rectangular frame-shaped lower frame 211 protruding upward from the outer peripheral edge of the bottom wall main body 210, and a fitting structure (specifically, a convex portion 212) provided on the outer peripheral portion of the upper surface of the bottom wall main body 210 (the portion inside the lower frame 211). The convex portions 212 are provided at the front and back ends and the left and right ends of the upper surface of the bottom wall main body 210, respectively.

[0018] As shown in FIG. 1, the mouth frame 22 integrally includes a pair of short side frames 220 detachably connected to the upper ends of a pair of first side walls 24 and a pair of long side frames 221 detachably connected to the upper ends of a pair of second side walls 25.

[0019] As shown in FIGS. 1 and 2, connecting portions 222 to which the lids 3a and 3b are rotatably connected are provided on the upper surfaces of the respective long side frames 221 of the pair. Protrusions 223 are provided on the upper surfaces of the respective short side frames 220. In the present embodiment, two protrusions 223 are provided at the upper end of each of the pair of short side frames 220.

[0020] As shown in FIG. 1, the container body 2 can be assembled into a box shape by erecting four side walls 23 (side walls 24 and 25) on the outer peripheral portion of the upper surface of the bottom wall body 210 of the bottom wall 21, fitting the bottom wall 21 and the four side walls 23, and fitting the mouth frame 22 into the upper ends of the four side walls 23.

[0021] Also, as shown in FIGS. 2 and 3, the container body 2 can be assembled in a folded state by folding the four side walls 23 and storing them in the space surrounded by the lower frame 211 of the bottom wall 21 and the mouth frame 22.

[0022] In the folded state, on the bottom wall body 210 of the bottom wall 21, the pair of second side walls 25 in the folded state are placed so as to be arranged in the front - rear direction. And on the pair of second side walls 25, the pair of first side walls 24 are placed. And the lids 3a and 3b are placed on the upper surface of the mouth frame 22, closing the opening 20.

[0023] 2 - 2. Lid In the present embodiment, the lid 3 has a rectangular shape in plan view as a whole. The lid 3 includes a first lid 3a and a second lid 3b arranged in the front - rear direction.

[0024] The first lid 3a is rotatably connected to the container body 2 so as to open and close a portion of the opening 20 (the rear portion in this embodiment). The second lid 3b is rotatably connected to the container body 2 so as to open and close the remaining portion of the opening 20 (the front portion in this embodiment). As shown in Figure 2, the first lid 3a and the second lid 3b are lids of the same shape. In other words, the second lid 3b is the same shape as the first lid 3a rotated 180 degrees in a plan view. The first lid 3a, which opens and closes the rear portion of the opening 20 of the container body 2, will be described in detail below.

[0025] As shown in Figures 4 and 5, the first lid 3a has a roughly rectangular plate-shaped lid body 30 and a connecting portion 31 provided at one end (rear end) of the lid body 30. The connecting portion 31 is rotatably connected to the connecting portion 222 of the opening frame 22.

[0026] The upper surface of the lid body 30 (i.e., the upper surface of the first lid 3a) has a recessed area 4 that is indented downwards. In this embodiment, the upper surface of the lid body 30 is provided with one recess 4. The bottom surface 40 of the recess 4 includes a first portion 40a that slopes downward toward the edge of the first lid 3a, and a second portion 40b and a third portion 40c that are positioned to sandwich the first portion 40a and slope downward toward the first portion 40a.

[0027] The bottom surface 40 of the recess 4 has a first region A1 and a second region A2 arranged in the left-right direction. Each of the first region A1 and the second region A2 includes a first part 40a, a second part 40b, and a third part 40c. The first part 40a of the first region A1 and the first part 40a of the second region A2 are sloped downward toward one side and the other side in the left-right direction, respectively, and are continuous in the left-right central part of the bottom surface 40.

[0028] In this embodiment, the first portion 40a of the first region A1 and the first portion 40a of the second region A2 are continuous in the middle of the left-right direction of the bottom surface 40. Therefore, the first portion 40a of the first region A1 and the first portion 40a of the second region A2 have the same length in the left-right direction.

[0029] The upper surface of the lid body 30 further has a first drainage channel 5a that connects the left-right edges of the first lid 3a to the first portion 40a. The height of the bottom surface 50a of the first drainage channel 5a is less than or equal to the height of the first portion 40a. In this embodiment, the upper surface of the lid body 30 is provided with two first drainage channels 5a, one on the left and one on the right. Each of the two first drainage channels 5a is located away from the outer edge of the recess 4 in the front-rear direction (the rear edge in the case of the first lid 3a) towards the center in the front-rear direction (the front side in the case of the first lid 3a).

[0030] The portion of the lid body 30 below the first drainage channel 5a is flat, and no downward-projecting ribs are formed on the lower surface 50a of the first drainage channel 5a (see Figure 8). As a result, shrinkage is less likely to occur in the portion of the lid body 30 below the first drainage channel 5a during resin molding, and a depression where water can accumulate is less likely to form on the lower surface 50a of the first drainage channel 5a.

[0031] Each of the left and right ends of the lid body 30 is provided with fitting holes 32 into which the projections 223 (see Figure 2) of the opening frame 22 fit. The fitting holes 32 penetrate the lid body 30 in the vertical direction (thickness direction). The two left and right first drainage grooves 5a are located adjacent to the rear side of the left and right fitting holes 32.

[0032] The lid body 30 has an overlapping portion 33 at the end adjacent to the second lid 3b (i.e., the front end) that overlaps the second lid 3b. The overlapping portion 33 is located in front of the recess 4.

[0033] The first lid 3a further has a reinforcing portion 34 that connects the front-to-back edges of the first drainage channel 5a on the upper surface of the lid body 30. The reinforcing portion 34 is located above and away from the bottom surface 50a of the first drainage channel 5a.

[0034] The recess 4 is positioned away from the front end of the lid body 30 (i.e., the edge adjacent to the second lid 3b) and away from the rear end of the lid body 30 (i.e., the connecting portion 31). Furthermore, the recess 4 is positioned away from the left and right fitting holes 32.

[0035] Each portion 40a, 40b, and 40c of the first region A1 and each portion 40a, 40b, and 40c of the second region A2 are arranged symmetrically with respect to a hypothetical line passing through the midpoint of the base surface 40 in the left-right direction.

[0036] The following describes the parts 40a, 40b, and 40c of the first region A1.

[0037] The base surface 40 is rectangular in plan view. The first region A1 of the base surface 40 is rectangular in plan view. The first region A1 has a longitudinal direction parallel to the left-right direction and a transverse direction parallel to the front-back direction.

[0038] The second part 40b, the first part 40a, and the third part 40c are arranged in this order in the front-to-back direction. In this embodiment, the first part 40a is trapezoidal in plan view, and the second part 40b and the third part 40c are right-angled triangles in plan view. When the first part 40a, the second part 40b, and the third part 40c are combined, they form a rectangle in plan view.

[0039] In this embodiment, the first part 40a, the second part 40b, and the third part 40c are all planes. A straight first side 41 is formed at the boundary between the first part 40a and the second part 40b, and a straight second side 42 is formed at the boundary between the first part 40a and the third part 40c.

[0040] The first portion 40a extends from the outer edge of the base surface 40 in the left-right direction (the left edge in the first region A1) to the middle of the base surface 40 in the left-right direction. Therefore, the pair of parallel opposite sides 43 and 44 of the first portion 40a of the trapezoidal shape in plan view are located on the left edge of the base surface 40 and midway along the base surface 40 in the left-right direction. Opposite side 43 is located away from the outer edge (the rear edge in the first lid 3a) in the front-rear direction (in other words, the first direction) of the base surface 40 towards the center in the front-rear direction (the front side in the first lid 3a). Opposite side 44 is located midway along the left-right direction of the base surface 40, extending from the front edge to the rear edge. The first side 41, opposite side 43, second side 42, and opposite side 44 are continuous in a trapezoidal shape.

[0041] The first section 40a is sloped downwards to the left, such that the part closer to the opposite side 43 is located lower. Therefore, in the first section 40a, the opposite side 43 is at the bottom and the opposite side 44 is at the top. The first side 41 and the second side 42 each slope downwards, so that the part closer to the opposite side 43 is located lower. As a result, water on the first section 40a flows towards the opposite side 43.

[0042] The second part 40b extends from the left-right outer edge of the base 40 (the left edge in the first region A1) to the middle of the base 40 in the left-right direction. The two right-angled sides 45 and 46 of the second part 40b, which is a right triangle in plan view, are located on the left edge and the front edge of the base 40. Edge 45 is located at the front of the left edge of the base 40. Edge 46 is located along the entire length of the front edge of the first region A1 of the base 40. The first edge 41, edge 45, and edge 46 are continuous in a right triangle shape.

[0043] The second section 40b is sloped downwards towards the rear, such that the part closer to the first side 41 is located lower in the front-to-back direction. Therefore, in the second section 40b, side 46 is at the top and side 41 is at the bottom. Side 45 is sloped downwards towards the rear. Water on the second section 40b flows towards side 41 and into the first section 40a.

[0044] The third portion 40c extends from the left-right outer edge of the base 40 (the left edge in the first region A1) to the middle of the base 40 in the left-right direction. The two right-angled sides 47 and 48 of the third portion 40c, which is a right triangle in plan view, are located on the left edge and the rear edge of the base 40. Side 47 is located at the rear of the left edge of the base 40. Side 48 is located along the entire length of the rear edge of the first region A1 of the base 40. The second side 42, side 47, and side 48 are continuous in a right triangle shape.

[0045] The third section 40c is sloped downwards towards the front, such that the part closer to the second side 42 is located lower in the front-to-back direction. Therefore, in the third section 40c, side 48 is at the top and the second side 42 is at the bottom. Side 47 is sloped downwards towards the front. Water on the third section 40c flows towards the second side 42 and flows onto the first section 40a.

[0046] The opposite side 44 of the first part 40a, the side 46 of the second part 40b, and the side 48 of the third part 40c are all at the same vertical position (i.e., height), and are at the same vertical position (i.e., height) as the portion of the upper surface of the lid body 30 surrounding the recess 4.

[0047] As shown in Figures 5 and 6, in this embodiment, the third portion 40c is shorter in the front-to-back direction than the second portion 40b. Therefore, the third portion 40c has a greater inclination angle (in other words, a steeper slope) than the second portion 40b.

[0048] From the opposite side 43 of the first part 40a, the first drainage channel 5a extends toward the left-right outer edge (left edge) of the first cover 3a.

[0049] The bottom surface 50a of the first drainage channel 5a is continuous with the opposite side 43 of the first portion 40a. As shown in Figure 7, the bottom surface 50a is a plane perpendicular to the thickness direction of the first lid 3a. The height of the bottom surface 50a is less than or equal to the height of the first portion 40a. Therefore, water flowing over the first portion 40a toward the opposite side 43 does not stop flowing at the boundary with the bottom surface 50 of the first drainage channel 5a, and can flow to the outside of the edge of the first lid 3a.

[0050] Since the bottom surface 50a is a plane perpendicular to the thickness direction of the first lid 3a, it does not slope downward at the same angle as the first portion 40a and is not located on the same plane as the first portion 40a. This prevents the thickness of the lid body 30 from becoming thinner closer to the edge of the lid body 30 in the portion of the outer periphery where the first drainage groove portion 5a is located, thereby ensuring the rigidity of the outer periphery of the lid body 30. In this embodiment, a reinforcing portion 34 is provided in the portion of the outer periphery of the lid body 30 where the first drainage groove portion 5a is located, and this reinforcing portion 34 can also increase the rigidity of the outer periphery of the lid body 30.

[0051] The parts 40a, 40b, and 40c of the second region A2 and the first drainage channel 5a on the right are arranged symmetrically with respect to the parts 40a, 40b, and 40c of the first region A1 described above and the first drainage channel 5a on the left.

[0052] The first portion 40a of the second region A2 slopes downward toward the left-right outer edge (right edge) of the first lid 3a. The first drainage channel 5a on the right side extends from the opposite side 43 of the first portion 40a of the second region A2 toward the left-right outer edge (right edge) of the first lid 3a. A reinforcing portion 34 is also provided on the outer circumference of the lid body 30, in the portion where the right-side first drainage channel 5a is located.

[0053] As shown in Figures 6 and 8, the first lid 3a further has a plurality of claws 6 used for locking onto the second lid 3b. The plurality of claws 6 protrude downward from the lower surface of the overlapping portion 33.

[0054] As shown in Figures 5, 6, and 8, the overlapping section 33 has two downward-sloping flat sections 330 on the left and right that are inclined downwards towards the front, two upward-sloping flat sections 331 on the left and right that are inclined upwards towards the front, and two flat, non-sloping ends 332 on the left and right.

[0055] The end portion 332, the upward sloping portion 331, the downward sloping portion 330, the upward sloping portion 331, the downward sloping portion 330, and the end portion 332 are arranged in this order from left to right. The two end portions 332 on the left and right have the same length in the left-right direction. The upward sloping portion 331 on the left and the downward sloping portion 330 on the right have the same length in the left-right direction. The boundary between the upward sloping portion 331 on the right and the downward sloping portion 330 on the left is located midway along the left-right direction of the lid body 30.

[0056] Each of the two downward-sloping sections 330 is provided with at least one through-hole 333 that penetrates the section vertically. Each through-hole 333 is an elongated hole that is long in the left-right direction. In this embodiment, the left downward-sloping section 330 has two through-holes 333 spaced apart in the left-right direction, and the right downward-sloping section 330 has one through-hole 333. Each through-hole 333 is located at the rear of the corresponding downward-sloping section 330.

[0057] Each of the two upward-sloping sections 331 is provided with at least one claw 6. In this embodiment, the left upward-sloping section 331 is provided with one claw 6, and the right upward-sloping section 331 is provided with two through holes 333 spaced apart in the left-right direction. Each claw 6 is provided at the front of the corresponding upward-sloping section 331.

[0058] Each claw 6 protrudes diagonally downward and rearward from the lower surface of the upward-sloping portion 331. In other words, each claw 6 is not perpendicular to the upward-sloping portion 331, but is inclined so that the tip is located further rearward (towards the connecting portion 31). Each claw 6 is a protruding portion that extends in the left-right direction. Each claw 6 has a thick main body portion 60 and a thin reinforcing portion 61, with thicknesses in the front-rear direction being different from each other. The main body portion 60 is the part that hooks onto the other lid (second lid 3b). The reinforcing portion 61 is continuous with the main body portion 60 in the left-right direction and reinforces the main body portion 60. Each claw 6 is provided to be long in the left-right direction because it has a main body portion 60 and a reinforcing portion 61.

[0059] The main body 60 has a greater thickness in the front-to-back direction than the reinforcing part 61 and protrudes further rearward (towards the connecting part 31) than the reinforcing part 61. The main body 60 protrudes diagonally downward and rearward from the lower surface of the upward inclined part 331, while the reinforcing part 61 protrudes perpendicularly downward from the lower surface of the upward inclined part 331.

[0060] The left-right half of each claw 6 is the main body 60, and the remaining left-right half of each claw 6 is the reinforcing part 61. One claw 6 protruding from the left upward-sloping part 331 has the left half as the main body 60 and the right half as the reinforcing part 61. The right claw 6 protruding from the right upward-sloping part 331 has the right half as the main body 60 and the left half as the reinforcing part 61, and the left claw 6 has the left half as the main body 60 and the right half as the reinforcing part 61. The two claws 6 protruding from the right upward-sloping part 331 have the halves closest to each other as the reinforcing part 61.

[0061] As shown in Figures 2 and 3, when the overlapping portions 33 of the first lid 3a and the second lid 3b are stacked vertically, the arrangement and shape of the three claws 6 of the upper lid (first lid 3a) and the three insertion holes 333 of the lower lid (second lid 3b) are set so that the claws 6 of the upper lid (first lid 3a) fit into the three insertion holes 333 of the lower lid (second lid 3b).

[0062] As shown in Figures 6, 7, and 8, the first lid 3a further has a grid-like rib 7 that protrudes downward from the lower surface of the lid body 30. The rib 7 is formed on the entire remaining portion of the lower surface of the lid body 30, excluding the outer periphery. When a portion of the opening 20 is closed with the first lid 3a, the rib 7 is positioned inside the opening frame 22 and not resting on top of the opening frame 22.

[0063] The grid-like ribs 7 are formed by multiple parallel rib protrusions 70 extending in the front-to-back direction and multiple parallel rib protrusions 71 extending in the left-to-right direction. In this embodiment, the portion of the first lid 3a adjacent to the overlapping portion 33 has a group of ribs formed in which the spacing between adjacent ribs 70, 70 and between adjacent ribs 71, 71 is narrower than in other portions. As a result, when the opening 20 is closed, the first lid 3a is less likely to collapse on the overlapping portion 33 side even if a load is applied from above.

[0064] Furthermore, the first lid 3a has a grid-like rib 7, which reinforces the thin portion of the lid body 30 where the recess 4 and the first drainage channel 5a are provided, thereby suppressing overall deformation of the lid body 30.

[0065] Furthermore, some of the multiple ribs 71 are aligned in the same line as and continuous with the pair of front and rear side walls that constitute the first drainage channel 5a. This improves the strength of the first drainage channel 5a.

[0066] Furthermore, the rib 7 may be positioned so that its lower end contacts the side wall 23 (first side wall 24) inside the opening frame 22 when the foldable state shown in Figure 2 is configured. In this case, when an external force is applied from above to the center of the first lid 3a in the left-right direction, the rib 7 can prevent the first lid 3a from warping. Also, in this case, even if the first lid 3a warps due to changes over time, the rib 7 contacting the side wall 23 in the folded state can reduce the warping of the first lid 3a, thereby suppressing the effects of warping.

[0067] As shown in Figure 8, the first lid 3a further has outer peripheral ribs 8 that protrude downward from each of the left and right edges of the lower surface of the lid body 30. The outer peripheral ribs 8 are provided along the entire length in the left-right direction on the left and right edges of the lid body 30, excluding the flat plate portion below the first drainage channel 5a and the end portion 332 of the overlapping portion 33. The outer peripheral ribs 8 are integral with the pair of front and rear side walls that constitute the first drainage channel 5a, thereby reinforcing the flat plate portion below the first drainage channel 5a with the outer peripheral ribs 8.

[0068] The first lid 3a described above, when rotated 180 degrees in a plan view, has the same shape as the second lid 3b. In Figure 2, the same reference numerals are used to indicate components of the second lid 3b that are common to the components of the first lid 3a.

[0069] The upper surface of the second lid 3b has a recess 4 and a second drainage channel 5b that connects the left-right edges of the second lid 3b to the first portion 40a of the second lid 3b. The second drainage channel 5b has the same structure as the first drainage channel 5a of the first lid 3a. The second drainage channel 5b is located away from the front-rear outer edge (specifically the front edge) of the recess 4 of the second lid 3b towards the center in the front-rear direction (i.e., the rear side).

[0070] 2-3. Others In the container 1 having the first lid 3a and the second lid 3b described above, as shown in Figures 2 and 3, the first lid 3a and the second lid 3b completely close the opening 20 of the container body 2. At this time, for example, the overlapping portion 33 of the first lid 3a rests on the overlapping portion 33 of the second lid 3b, and the multiple claws 6 of the first lid 3a are inserted one-to-one into the multiple insertion holes 333 of the second lid 3b. Also at this time, the lower surfaces of the two downward-sloping portions 330 of the first lid 3a are in surface contact with the upper surfaces of the two upward-sloping portions 331 of the second lid 3b, and the lower surfaces of the two upward-sloping portions 331 of the first lid 3a are in surface contact with the upper surfaces of the two downward-sloping portions 330 of the second lid 3b. The lower surfaces of the two ends 332 of the first lid 3a are in surface contact with the upper surfaces of the two ends 332 of the second lid 3b. The insertion holes 333 in the two downward-sloping portions 330 of the first lid 3a are closed by the upward-sloping portion 331 of the second lid 3b. This prevents water from entering the container body 2 through the overlapping portion 33 of the lids 3a and 3b. At this time, the first lid 3a and the second lid 3b are maintained in position by resting on the upper surface of the opening frame 22. This makes it easier to set the inclination of each portion 40a, 40b, and 40c of the bottom surface 40 of the recesses 4 of each lid 3a and 3b with respect to the horizontal plane as intended.

[0071] Furthermore, in this embodiment, when multiple containers 1 are stacked vertically, the bottom surface (lower surface of the bottom wall 21) of the upper container 1 rests on the projection 223 of the lower container 1, creating a gap between the lids 3a, 3b of the lower container 1 and the bottom surface of the upper container 1. In this embodiment, when stacking, the projection 223 of the lower container 1 can be hooked onto the bottom surface of the upper container 1, thereby suppressing displacement of the upper container 1.

[0072] 3. Effects In the container 1 of this embodiment described above, when water such as rainwater or washing water is received on the upper surface of the lid 3, drainage can be performed as follows.

[0073] In other words, in the container 1 of this embodiment, water on the second portion 40b and the third portion 40c of the first region A1 on the bottom surface 40 of the recess 4 of the first lid 3a can flow onto the first portion 40a of the first region A1 due to the inclination of each portion 40b and 40c. Then, the water on the first portion 40a can flow outward in the left-right direction (to the left) due to the inclination of the first portion 40a, and can flow outward through the left-side first drainage channel 5a to the outside of the left-right outer edge (left edge) of the first lid 3a.

[0074] Similarly, water on the second portion 40b and the third portion 40c of the second region A2 on the bottom surface 40 of the recess 4 of the first lid 3a can be directed onto the first portion 40a of the second region A2 by the inclination of each portion 40b and 40c. Then, water on the first portion 40a can be directed outward (to the right) by the inclination of the first portion 40a, and can be directed outside the left-right outer edge (right edge) of the first lid 3a through the right-side first drainage channel 5a.

[0075] Therefore, in the container 1 of this embodiment, the recess 4 of the first lid 3a and the left and right first drainage grooves 5a allow drainage to be performed while avoiding the connecting portion 31, fitting hole 32, and overlapping portion 33 of the first lid 3a, thereby preventing water from entering the container 1. In addition, water received on the upper surface of the second lid 3b can also be drained in the same way as the first lid 3a, thereby preventing water from entering the container 1.

[0076] Furthermore, in the container 1 of this embodiment, the bottom surface 40 of the recess 4 has a second portion 40b and a third portion 40c that are positioned to sandwich the first portion 40a. Therefore, in the container 1 of this embodiment, compared to the case where the bottom surface 40 is composed of an inclined portion with the same area as the first portion 40a and one inclined portion with the same area as the combined area of ​​the second portion 40b and the third portion 40c and that slopes downward toward this inclined portion, it is easier to make the slope of the second portion 40b and the third portion 40c larger, thereby improving the drainage performance of the bottom surface 40.

[0077] Furthermore, in the container 1 of this embodiment, it is easy to increase the inclination angle of the second part 40b and the third part 40c, so even if the thickness of the lids 3a and 3b is thin, it is easy to secure an inclination angle of a certain level or higher.

[0078] Furthermore, in the container 1 of this embodiment, since portions 40a, 40b, and 40c of the bottom surface 40 of the recess 4 are flat, it is easy to create the desired slope and improve the drainage performance of the lids 3a and 3b.

[0079] Furthermore, in the container 1 of this embodiment, each of the two regions A1 and A2 of the bottom surface 40 of the recess 4 includes portions 40a, 40b, and 40c, and drainage can be performed in different directions from each other, thus enabling rapid drainage and improving drainage performance.

[0080] Furthermore, in the container 1 of this embodiment, the overlapping portion 33 of the lids 3a and 3b has multiple claws 6, and the main body 60 of each claw 6 protrudes diagonally downward on the opposite side from the front-to-back end of the overlapping portion 33, rather than directly downward. Therefore, when the overlapping portion 33 of the lids 3a and 3b is stacked vertically, even if an external force is applied from above to the center of the overlapping portion 33 in the left-to-right direction, the main body 60 of each claw 6 on the upper lid can easily catch on the edges of the insertion holes 333 on the lower lid, making it easier to suppress deformation of each lid 3a and 3b.

[0081] Furthermore, in the container 1 of this embodiment, since the first lid 3a and the second lid 3b have the same shape, there is no risk of incorrectly attaching the lids 3a and 3b to the front and rear connecting parts 222 of the container body 2, making assembly easier.

[0082] 4. Variations Next, a modified version of the container 1 of the above-described embodiment will be explained. The modified versions described below can be combined as appropriate.

[0083] The container body 2 can be any box-shaped object having an opening 20 on its top surface, and is not limited to a foldable type as shown in Figures 1 and 2, but may also be a one-piece molded product.

[0084] The lid 3 has a recess 4 on its upper surface, and the bottom surface 40 of the recess 4 includes a first part 40a, a second part 40b, and a third part 40c, but is not limited to including a first lid 3a and a second lid 3b. The lid 3 may be made of one member or of three or more members. Even when the lid 3 is made of one member, similar to lids 3a and 3b, the upper surface of the lid 3 further has a drainage groove 5 connecting the edge of the lid 3 and the first part 40a, and it is preferable that the height of the bottom surface 50 of the drainage groove 5 is less than or equal to the height of the first part 40a.

[0085] Furthermore, the bottom surface 40 of the recess 4 does not necessarily have to have a first region A1 and a second region A2, and may have each portion 40a, 40b, and 40c extending along the entire length of the bottom surface 40 in the left-right direction. In this case, the lids 3a and 3b only need to have one of the two drainage groove portions 5a and 5b on the left and right.

[0086] Furthermore, the bottom surface 40 of the recess 4 may have a flat portion located between the first region A1 and the second region A2, in which case the inclination angle of the first portion 40a of regions A1 and A2 can be increased.

[0087] Furthermore, the portions 40a, 40b, and 40c of the bottom surface 40 of the recess 4 are not limited to flat surfaces, but may also be curved surfaces such as concave or convex surfaces. Also, each portion 40a, 40b, and 40c may be a combination of a flat surface and a curved surface, and may be inclined downwards in each direction. In addition, each of the portions 40a, 40b, and 40c may be formed as a textured surface.

[0088] Furthermore, the shape of the bottom surface 40 of the recess 4 is not limited to a rectangular shape in plan view, but may be other shapes. Similarly, the shapes of the first part 40a, the second part 40b, and the third part 40c are not limited to a trapezoidal shape, a right-angled triangular shape in plan view, and a right-angled triangular shape in plan view, but may be other shapes. For example, the first part 40a may be a triangular shape in plan view in which the first side 41 and the second side 42 are directly connected without an opposite side 43. Also, the first part 40a, the second part 40b, and the third part 40c may all be rectangular in plan view. Furthermore, the first part 40a may be a straight line in plan view, and the second part 40b and the third part 40c may be rectangular in plan view, that is, the first part 40a, the second part 40b, and the third part 40c may form a V-shaped groove.

[0089] Furthermore, the groove width (length in the front-to-back direction) of the drainage groove section 5 (5a, 5b) does not have to be the same as the length in the front-to-back direction of the lowest part of the first section 40a; it may be longer or shorter than this length. The drainage groove section 5 (5a, 5b) may be provided so as to be connected not only to the first section 40a, but also to at least one of the second section 40b and the third section 40c.

[0090] Furthermore, the bottom surface 50 (50a) of the drainage channel section 5 (5a, 5b) only needs to be less than or equal to the height of the first section 40a, and may be sloped downwards and continuous flush with the first section 40a.

[0091] Furthermore, the second part 40b and the third part 40c do not have to be continuous with respect to the first part 40a at an angle, but may be smoothly continuous via a curved surface. Also, the second part 40b and the third part 40c may be continuous with respect to the first part 40a via a step.

[0092] Furthermore, the first lid 3a and the second lid 3b are not limited to having the same shape. The arrangement, shape, size, or number of recesses 4 in each lid 3a and 3b may differ.

[0093] Furthermore, the lids 3a and 3b only need to be attached to the container body 2, and they do not need to be rotatable; they may be attached by other means such as being detachable.

[0094] (summary) As described above in one embodiment and its modified form, the container 1 of the first embodiment has the following configuration.

[0095] In other words, the container 1 of the first embodiment comprises a box-shaped container body 2 having an opening 20 on its upper surface, and a lid 3 attached to the container body 2 so as to open and close the opening 20. The upper surface of the lid 3 has a recess 4. The bottom surface 40 of the recess 4 includes a first portion 40a that slopes downward toward the edge of the lid 3, and a second portion 40b and a third portion 40c that are positioned to sandwich the first portion 40a and slope downward toward the first portion 40a.

[0096] In the first embodiment of the container 1 having the above configuration, when water such as rainwater or washing water is received on the bottom surface 40 of the recess 4 of the lid 3, this water can be directed towards the edge of the lid 3 due to the slope of the bottom surface 40. Here, in the first embodiment of the container 1, the bottom surface 40 of the recess 4 is positioned so as to sandwich the first part 40a and includes a second part 40b and a third part 40c that slope downward toward the first part 40a. Therefore, in the first embodiment of the container 1, compared to the case where the bottom surface 40 is composed of a sloped part with the same area as the first part 40a and one sloped part with the same area as the sum of the second part 40b and the third part 40c and that slopes downward toward this sloped part, it is easier to make the slope of the second part 40b and the third part 40c larger, thereby improving the drainage performance of the bottom surface 40. Consequently, in the first embodiment of the container 1, the direction in which water received on the upper surface of the lid 3 flows can be restricted by the slope of the bottom surface 40 of the recess 4, making it easier to suppress water from entering the container 1.

[0097] Furthermore, as described above in the embodiment and its modifications, the container 1 of the second embodiment is further equipped with the following configuration in addition to the configuration of the container 1 of the first embodiment.

[0098] In other words, in the container 1 of the second embodiment, the bottom surface 40 of the recess 4 has a first region A1 and a second region A2 aligned in one direction. Each of the first region A1 and the second region A2 includes a first portion 40a, a second portion 40b, and a third portion 40c. The first portion 40a of the first region A1 and the first portion 40a of the second region A2 are inclined downward toward one side and the other side in the aforementioned direction, respectively, and are continuous in the central part of the bottom surface 40 in the aforementioned direction.

[0099] In the second embodiment of the container 1 having the above configuration, the water received at the bottom surface 40 can be drained to opposite sides by the first region A1 and the second region A2. Compared to the case where drainage is possible to only one side, the water can be drained more quickly to the outside of the edge of the lid 3, making it easier to improve drainage performance.

[0100] Furthermore, as described above in one embodiment and its modified form, the container 1 of the third embodiment is further equipped with the following configuration in addition to the configuration of the container 1 of the first or second embodiment.

[0101] In other words, in the third embodiment of the container 1, the upper surface of the lid 3 further includes a drainage channel 5 connecting the edge of the lid 3 and the first portion 40a. The height of the bottom surface 50 of the drainage channel 5 is less than or equal to the height of the first portion 40a.

[0102] In the third embodiment of the container 1 having the above configuration, water flowing over the first portion 40a can be drained to the outside of the edge of the lid 3 through the drainage channel 5. In this case, in the third embodiment of the container 1, since the height of the bottom surface 50 of the drainage channel 5 is less than or equal to the height of the first portion 40a, water flowing from the first portion 40a into the drainage channel 5 is less likely to accumulate in the drainage channel 5 and is easily drained to the outside of the edge of the lid 3.

[0103] Furthermore, as described above in one embodiment and its modified form, the container 1 of the fourth embodiment additionally comprises the following configurations in addition to the configuration of the container 1 of any one of the first to third embodiments.

[0104] In other words, in the fourth embodiment of the container 1, the first part 40a, the second part 40b, and the third part 40c are each inclined planes.

[0105] In the fourth embodiment of the container 1 having the above configuration, it is easy to create a desired slope in each part 40a, 40b, and 40c, and it is easy to improve drainage performance.

[0106] Furthermore, as described above in one embodiment and its modified form, the container 1 of the fifth embodiment is further equipped with the following configuration in addition to the configuration of the container 1 of the first or second embodiment.

[0107] In other words, in the fifth embodiment of the container 1, the lid 3 has an overall rectangular shape in plan view. The lid 3 includes a first lid 3a and a second lid 3b arranged in a first direction along one side of the lid 3. The upper surfaces of the first lid 3a and the second lid 3b each have a recess 4. The first portion 40a of the first lid 3a and the second lid 3b each slope downward in a second direction perpendicular to the first direction. The upper surface of the first lid 3a has a first drainage groove portion 5a connecting the edge of the first lid 3a in the second direction to the first portion 40a of the first lid 3a. The upper surface of the second lid 3b has a second drainage groove portion 5b connecting the edge of the second lid 3b in the second direction to the first portion 40a of the second lid 3b. The first drainage groove portion 5a is located away from the outer edge of the recess 4 of the first lid 3a towards the center in the first direction. The second drainage groove portion 5b is located away from the outer edge of the recess 4 of the second lid 3b towards the center in the first direction.

[0108] In the fifth embodiment of the container 1 having the above configuration, water received in the recesses 4 of each lid 3a and 3b can be drained through the drainage channels 5a and 5b in a second direction perpendicular to the first direction in which the lids 3a and 3b are aligned, thereby preventing water from flowing between the lids 3a and 3b. Here, in the fifth embodiment of the container 1, the drainage channels 5a and 5b of each lid 3a and 3b are located away from the outer edge in the first direction of the recess 4 toward the center, so that the thin-walled portion of the lids 3a and 3b on which the drainage channels 5a and 5b are provided is located away from the corner portion of the lid 3. Therefore, in the fifth embodiment of the container 1, even if the corner portion of the lid 3 collides with something during transport of the container 1, the lids 3a and 3b are less likely to be damaged.

[0109] Although the present disclosure has been described above based on the embodiments shown in the attached drawings, the present disclosure is not limited to the above embodiments, and appropriate design modifications are possible within the scope intended by the present disclosure. [Explanation of Symbols]

[0110] 1. Transport container with lid 2. Container body 20 aperture 3 Lid 3a First lid 3b Second lid 4 recesses 40 Bottom 40a first part 40b Second part 40c third part 5 Drainage section 5a First drain section 5b Second drainage channel 50 base A1 First area A2 Second area

Claims

1. A box-shaped container body having an opening on the top surface, The container comprises a lid attached to the container body so as to open and close the aforementioned opening, The upper surface of the lid has a recess, The bottom surface of the recess is The first portion slopes downward toward the edge of the lid, It includes a second part and a third part that are positioned so as to sandwich the first part and slope downward toward the first part, The lid includes a first lid and a second lid arranged in the first direction, The upper surface of the first lid and the upper surface of the second lid each have the recess, A connecting portion is provided at one end of the upper surface of the container body in the first direction, to which the first lid is rotatably connected. A connecting portion is provided at the other end of the upper surface of the container body in the first direction, to which the second lid is rotatably connected. The first portion of the first lid and the second lid are inclined downward in a second direction perpendicular to the first direction. A transport container with a lid, characterized by the following features.

2. The bottom surface of the recess of the first lid and the second lid has a first region and a second region aligned in the second direction, Each of the first region and the second region includes the first part, the second part, and the third part, The first portion of the first region and the first portion of the second region are inclined downward toward one side and the other side in the second direction, respectively, and are continuous in the central part of the bottom surface in the second direction. A transport container with a lid according to feature 1.

3. The upper surface of the first lid has a first drainage groove that connects the edge of the first lid in the second direction with the first portion of the first lid, The upper surface of the second lid has a second drainage groove that connects the edge of the second lid in the second direction with the first portion of the second lid. The height of the bottom surface of the first drainage channel is less than or equal to the height of the first portion of the first lid. The height of the bottom surface of the second drainage channel is less than or equal to the height of the first portion of the second cover. A transport container with a lid according to feature 1 or 2.

4. The first part, the second part, and the third part are each inclined planes. A transport container with a lid according to any one of claims 1 to 3.

5. The lid has an overall rectangular shape when viewed from above. The lid includes the first lid and the second lid, which are aligned in the first direction along one side of the lid. The upper surface of the first lid has a first drainage groove that connects the edge of the first lid in the second direction with the first portion of the first lid. The upper surface of the second lid has a second drainage groove that connects the edge of the second lid in the second direction with the first portion of the second lid. The first drainage channel is located away from the outer edge of the recess of the first lid in the first direction, towards the center in the first direction. The second drainage channel is located away from the outer edge of the recess of the second lid in the first direction, towards the center in the first direction. A transport container with a lid according to feature 1 or 2.

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