Transportation container with door

Abstract

To propose a transportation container with a door that makes it easy to secure stacking strength and compact stacking work.SOLUTION: A transportation container 1 with a door includes a container body 2, a pair of protruding support legs 3, a pair of recessed leg storage parts 4, an opening 210, and a door 5 for opening and closing the opening 210. The container body 2 has a rectangular box shape with an open top, and has a first side wall 21 and a second side wall 22 facing each other. The pair of support legs 3 protrude from an outer surface of each of the first side wall 21 and the second side wall 22 and extend in a vertical direction. The pair of leg storage parts 4 are provided on an inner surface of each of the first side wall 21 and the second side wall 22 and extend in the vertical direction. The opening 210 is provided in a portion of the first side wall 21 between the pair of support legs 3 and between the pair of leg storage parts 4.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present disclosure relates to a shipping container with a door. [Background technology]

[0002] Patent Document 1 describes a folding container that includes a pair of foldable side walls and a door member that opens and closes an opening provided in the side walls. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Patent No. 3875057 Summary of the Invention [Problem to be solved by the invention]

[0004] Incidentally, in the folding container described in Patent Document 1, when the door members are open, almost the entire side wall is open, so the stacking strength is weak. Also, this folding container cannot be stacked compactly unless it is folded, so storing it is time-consuming.

[0005] In view of the above circumstances, an object of the present disclosure is to propose a transport container with a door that is easy to ensure stacking strength and allows for easy stacking in a compact manner. [Means for solving the problem]

[0006] In order to solve the above problems, a door-equipped transport container according to one embodiment of the present disclosure includes a container body, a pair of support legs having convex ribs, a pair of leg housings having concave ribs, an opening, and a door for opening and closing the opening. The container body is a rectangular box-like shape with an open top and has a first side wall and a second side wall that face each other. The pair of support legs protrude from the outer surfaces of the first side wall and the second side wall, respectively, and extend in the vertical direction. The pair of leg housings are provided on the inner surfaces of the first side wall and the second side wall, respectively, and extend in the vertical direction. The opening is provided in a portion of the first side wall between the pair of support legs and between the pair of leg housings. Effect of the Invention

[0007] In the door-equipped transport container of one aspect according to the present disclosure, stacking strength can be easily ensured and the containers can be easily stacked compactly. [Brief description of the drawings]

[0008] [Figure 1] FIG. 1 is a perspective view showing a transport container with a door according to a first embodiment. [Diagram 2] FIG. 2 is a cross-sectional view taken along line AA in FIG. [Diagram 3] FIG. 3 is a perspective view showing half of the above-mentioned transport container with door, in which the door is omitted. [Figure 4] FIG. 4A is a perspective view showing two of the above door-equipped transport containers stacked one above the other, and FIG. 4B is a perspective view showing two of the above door-equipped transport containers nested one above the other. [Diagram 5] FIG. 5 is a perspective view showing a transport container with a door according to the second embodiment. [Figure 6] FIG. 6 is a cross-sectional view taken along line BB in FIG. [Figure 7] FIG. 7A is a perspective view showing two of the above door-equipped transport containers stacked one above the other, and FIG. 7B is a perspective view showing two of the above door-equipped transport containers nested one above the other. [Figure 8]FIG. 8A is a perspective view showing two door-equipped transport containers of embodiment 3 stacked one above the other, and FIG. 8B is a perspective view showing two door-equipped transport containers of the same embodiment stacked one above the other in a nested state. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0009] (Embodiment 1) 1. Overview A door-equipped transport container 1 (hereinafter simply referred to as "container 1") of embodiment 1 shown in FIG. 1 includes a container body 2, a pair of support legs 3 having convex stripes, a pair of leg housings 4 having concave stripes, an opening 210, and a door 5 for opening and closing the opening 210. The container body 2 is a rectangular box-like shape with an open top, and has a first side wall 21 and a second side wall 22 facing each other. The pair of support legs 3 protrude from the outer surfaces of the first side wall 21 and the second side wall 22, respectively, and extend in the vertical direction. The pair of leg housings 4 are provided on the inner surfaces of the first side wall 21 and the second side wall 22, respectively, and extend in the vertical direction. The opening 210 is provided in a portion of the first side wall 21 between the pair of support legs 3 and between the pair of leg housings 4.

[0010] In the container 1 of the first embodiment having the above configuration, a pair of support legs 3 of convex stripes extending in the vertical direction and a pair of leg housings 4 of concave stripes extending in the vertical direction are provided on the first side wall 21 having the opening 210 so as to sandwich the opening 210. Therefore, in the container 1 of the first embodiment, the first side wall 21 having the opening 210 can be reinforced by the pair of support legs 3 and the pair of leg housings 4, and stacking strength can be easily ensured. In addition, in the container 1 of the first embodiment, since the pair of support legs 3 and the pair of leg housings 4 are provided on the side walls 21 and 22, when two containers 1 are stacked in the vertical direction, the support legs 3 of the upper container 1B can be accommodated in the leg housing 4 of the lower container 1A. Therefore, in the container 1 of the first embodiment, a part of the upper container 1B can be stored inside the lower container 1A, so that the containers can be stacked compactly, and at this time, since the operation of folding the side walls as in the conventional example is not required, the operation of stacking compactly can be easily performed.

[0011] 2.Details Next, the container 1 of this embodiment shown in Figs. 1 to 4 will be described in more detail with reference to the drawings.

[0012] 1, the container 1 of this embodiment includes a container body 2, a pair of support legs 3, a pair of leg housing sections 4, and a door 5, as well as a pair of second support legs 6 and a pair of second leg housing sections 7. Hereinafter, the support legs 3 will be referred to as first support legs 3, and the leg housing sections 4 will be referred to as first leg housing sections 4.

[0013] 2-1. Container body The container body 2 is in the shape of a rectangular box with an open top. In this embodiment, the container body 2 is in the shape of a substantially rectangular parallelepiped box. In the following, each configuration will be described with the longitudinal direction of the container body 2 in a plan view as the left-right direction, the lateral direction of the container body 2 in a plan view as the front-rear direction, and the direction perpendicular to the left-right direction and the front-rear direction as the up-down direction.

[0014] The container body 2 comprises a bottom wall 20 having a generally rectangular shape in plan view, a first side wall 21 and a second side wall 22 erected on two long sides (i.e., front and rear end sides) of the bottom wall 20, and a third side wall 23 and a fourth side wall 24 erected on two short sides (i.e., left and right end sides) of the bottom wall 20. The container body 2 further comprises an upper end flange 8 protruding outward from the upper end of the container body 2, an upper flange 9 protruding outward from the upper part of the container body 2, and an intermediate flange 10 protruding outward from a vertical intermediate part of the container body 2. The container body 2 further comprises a plurality of vertical ribs 11 extending in the vertical direction connecting the flanges 8, 9, and 10.

[0015] The bottom wall 20 is a generally rectangular flat plate with a longitudinal direction in the left-right direction and a transverse direction in the front-rear direction. The bottom wall 20 is provided with a plurality of through holes 200 penetrating in the up-down direction so as to extend throughout the entire bottom wall 20.

[0016] 1 and 3, a connecting portion 201 for rotatably supporting the door 5 is provided in a portion of the front end of the bottom wall 20 that is located behind the left and right ends of the opening 210. In this embodiment, the connecting portion 201 has a pair of left and right support bases 202 that protrude upward from the bottom wall 20, and a rotation shaft 203 that is supported by the pair of left and right support bases 202 and is parallel to the left and right direction.

[0017] As shown in Fig. 1, the first side wall 21 and the second side wall 22 face each other in the front-rear direction and are inclined outward in the front-rear direction with respect to the vertical plane so that the width (inner dimension in the front-rear direction) increases toward the upper portion. The third side wall 23 and the fourth side wall 24 face each other in the left-right direction and are inclined outward in the left-right direction with respect to the vertical plane so that the width (inner dimension in the left-right direction) increases toward the upper portion. Each of the four side walls 21, 22, 23, 24 is flat. The storage space inside the container body 2, surrounded by the bottom wall 20 and the side walls 21, 22, 23, 24, becomes wider toward the upper side.

[0018] 1 and 3, an opening 210 is provided in the first side wall 21 in a portion between the pair of first support legs 3 and between the pair of first leg housing portions 4. In this embodiment, the opening 210 is provided from the upper end to the lower end of the first side wall 21. That is, the vertical length of the opening 210 is approximately the same as the vertical length of the first side wall 21. The opening 210 opens in the thickness direction (front-rear direction) of the first side wall 21 and upward.

[0019] 1, each of the upper flange 8 and the upper flange 9 is substantially continuous annular except for a portion (a portion corresponding to the opening 210), and more specifically, is substantially continuous rectangular frame-like except for a portion. The upper flange 8 protrudes outward from the upper end of each of the side walls 21, 22, 23, and 24, and the upper flange 9 protrudes outward from the upper portion of each of the side walls 21, 22, 23, and 24. Each of the upper flange 8 and the upper flange 9 is a plate-like member that extends horizontally and has a thickness in the vertical direction.

[0020] The intermediate flange 10 is composed of two portions located on the front side that are generally L-shaped in plan view and one portion located on the rear side that is generally U-shaped in plan view. The intermediate flange 10 protrudes outward from the remaining portions of the side walls 21, 22, 23, 24 excluding the opening 210 and the central portions of the side walls 23, 24 in the front-to-rear direction. The intermediate flange 10 is in the form of a plate that extends horizontally and has a thickness in the up-down direction.

[0021] The flanges 8, 9, and 10 are parallel to one another. The upper flange 9 is located between the upper end flange 8 and the intermediate flange 10, closer to the upper end flange 8.

[0022] The upper end flange 8 includes a first flange portion 80 protruding outward (front side) from the front first side wall 21, and a second flange portion 81 protruding outward (rear side) from the rear second side wall 22. The upper end flange 8 further includes a third flange portion 82 protruding outward (left side) from the left third side wall 23, and a fourth flange portion 83 protruding outward (right side) from the right fourth side wall 24. The flange portions 80, 81, 82, 83 are continuous to form an arc-shaped corner portion.

[0023] The first flange portion 80 is provided with two openings 800 that vertically penetrate the first flange portion 80, and a support groove 801 having a bottom surface that is one step lower than the top surface of the first flange portion 80. A locking portion 802 protrudes upward from the inner end (rear end) of the support groove 801.

[0024] In this embodiment, the support groove 801 includes a first support groove 801a, a second support groove 801b, and a third support groove 801c aligned in the left-right direction. The support grooves 801a, 801b, and 801c are positioned in this order with a gap between them in the left-right direction. One opening 800 is positioned between the first support groove 801a and the second support groove 801b, and the opening 210 is positioned between the second support groove 801b and the third support groove 801c. Another opening 800 is positioned to the right of the third support groove 801c.

[0025] The second flange portion 81 is provided with two openings 810 that penetrate the second flange portion 81 in the up-down direction, and a support groove 811 having a bottom surface that is one step lower than the top surface of the second flange portion 81. A locking portion 812 protrudes upward from the inner end of the support groove 811.

[0026] In this embodiment, the support groove 811 includes a first support groove 811a and a second support groove 811b aligned in the left-right direction. One opening 810 is located between the first support groove 811a and the second support groove 811b, and another opening 810 is located to the right of the second support groove 811b.

[0027] Third flange portion 82 is provided with two openings 820 that pass through third flange portion 82 in the up-down direction, and two support grooves 821 that have bottom surfaces one step lower than the upper surface of third flange portion 82.

[0028] The two support grooves 821 are aligned in a row in the front-rear direction and are spaced apart in the front-rear direction. The front support groove 821 is located adjacent to the rear side of the front opening 820, and the rear support groove 821 is located adjacent to the front side of the rear opening 820. The opening 820 and the support grooves 821 are in communication with each other.

[0029] The fourth flange portion 83 is provided with two openings 830 that penetrate the fourth flange portion 83 in the vertical direction, and two support grooves 831 that have a bottom surface that is one step lower than the upper surface of the fourth flange portion 83.

[0030] The two support grooves 831 are aligned in a row in the front-rear direction and are spaced apart in the front-rear direction. The front support groove 831 is located adjacent to the front side of the front opening 830, and the rear support groove 831 is located adjacent to the rear side of the rear opening 830. The opening 830 and the support grooves 831 are in communication with each other.

[0031] The upper flange 9 has an opening that penetrates in the vertical direction in a portion corresponding to the pair of front and rear first leg storage sections 4, and has an opening that penetrates in the vertical direction in a portion corresponding to the pair of left and right second leg storage sections 7.

[0032] The intermediate flange 10 covers the pair of front and rear first leg housings 4 from below, and covers the pair of left and right second leg housings 7 from below. In other words, the intermediate flange 10 does not have any openings that open in the vertical direction in the portions corresponding to the leg housings 4, 7.

[0033] Each of the vertical ribs 11 is flat. The upper end of each of the vertical ribs 11 is integral with the lower surface of the upper flange 8, and the lower end of each of the vertical ribs 11 is integral with the upper surface of the intermediate flange 10. A vertical portion of each of the vertical ribs 11 is integral with the upper flange 9 and intersects with the upper flange 9 (perpendicular to the upper flange 9 in this embodiment). Each of the vertical ribs 11 is integral with the outer surfaces of the side walls 21, 22, 23, 24, and is approximately perpendicular to the side walls 21, 22, 23, 24. Each of the vertical ribs 11 is integral with the outer surfaces of the side walls 21, 22, 23, 24 at positions shifted in the circumferential direction of the upper flange 8 with respect to the leg housings 4, 7.

[0034] 1 and 3, the vertical ribs 11 include vertical ribs 11a integral with both circumferential ends of a portion of the intermediate flange 10 that is generally L-shaped in plan view, and vertical ribs 11b integral with both circumferential ends of a portion of the intermediate flange 10 that is generally U-shaped in plan view. The vertical ribs 11 further include corner vertical ribs 11c integral with four corners of the upper end flange 8. The vertical rib 11a adjacent to the opening 210 is provided with a locking recess 110 into which a locking protrusion 503 (see FIG. 2) of the door 5 can be inserted.

[0035] 2-2. First and second support legs A pair of first support legs 3 protrude from the outer surfaces of the first side wall 21 and the second side wall 22. A pair of second support legs 6 protrude from the outer surfaces of the third side wall 23 and the fourth side wall 24.

[0036] The front pair of first support legs 3 protrude from the front first side wall 21 at a position of the first side wall 21 adjacent to the opening 210 on the left-right outer side. The front pair of first support legs 3 protrude forward from a portion of the first side wall 21 below the intermediate flange 10. The front pair of first support legs 3 are located from the middle portion to the lower end portion of the first side wall 21 in the up-down direction. The upper ends of the front pair of first support legs 3 are connected to the intermediate flange 10.

[0037] In this embodiment, each of the pair of front first support legs 3 is composed of a plurality of (two in this embodiment) vertical ribs 30 spaced apart in the left-right direction, and one horizontal rib 31 connecting the lower ends of the vertical ribs 30. A locking piece 310 protrudes downward from the front end of the horizontal rib 31.

[0038] Of the pair of front first support legs 3, the first leg 3a located on the left side of the opening 210 is located directly below the first support groove 801a. Of the pair of front first support legs 3, the second leg 3b located on the right side of the opening 210 is located directly below the third support groove 801c. The first leg 3a is longer in the left-right direction than the second leg 3b. The first leg 3a is provided with a size that allows it to be accommodated in the first leg housing section 4 on the right side of the rear side wall 22, and the second leg 3b is provided with a size that allows it to be accommodated in the first leg housing section 4 on the left side of the rear side wall 22.

[0039] As shown in FIG. 3, in this embodiment, the vertical rib 30 on the left side of the second leg portion 3b is located directly below the vertical rib 11a adjacent to the right side of the opening 210, and the vertical rib 11a and the vertical rib 30 are continuous in a straight line.

[0040] The pair of rear first support legs 3 protruding from the rear second side wall 22 have the same structure as the pair of front first support legs 3. The first leg portion located on the left side of the pair of rear first support legs 3 is located directly below the first support groove 811a, and the second leg portion located on the right side of the pair of rear first support legs 3 is located directly below the right end of the second support groove 811b. The left first leg is longer in the left-right direction than the right second leg. The left first leg is provided with a size that can be accommodated in the first leg housing portion 4 on the right side of the front first side wall 21, and the right second leg is provided with a size that can be accommodated in the first leg housing portion 4 on the left side of the front first side wall 21.

[0041] 1 , the pair of left second support legs 6 protruding from the left third side wall 23 protrude to the left from a portion of the third side wall 23 below the intermediate flange 10. The pair of left second support legs 6 are located from the middle portion to the lower end portion in the vertical direction of the third side wall 23. The upper ends of the pair of left second support legs 6 are connected to the intermediate flange 10.

[0042] In this embodiment, the pair of second support legs 6 on the left side are composed of multiple (two in this embodiment) vertical ribs 60 spaced apart in the front-rear direction, and one horizontal rib 61 connecting the lower ends of the multiple vertical ribs 60. The lower surface of the horizontal rib 61 is flat. In other words, the horizontal rib 61 does not have a structure equivalent to the locking piece 310 of the first support leg 3.

[0043] In this embodiment, the first leg 6a located on the front side of the pair of second support legs 6 on the left side is located directly below the front support groove 821 of the third flange portion 82 on the left side, and the second leg 6b located on the rear side of the pair of second support legs 6 on the left side is located directly below the rear support groove 821. The first leg 6a and the second leg 6b have the same size and shape. The first leg 6a is sized to be able to be accommodated in the second leg housing portion 7 on the rear side of the fourth side wall 24 on the right side, and the second leg 6b is sized to be able to be accommodated in the second leg housing portion 7 on the front side of the right side wall 24.

[0044] The pair of second support legs 6 on the right side protruding from the fourth side wall 24 on the right side have the same structure as the pair of second support legs 6 on the left side. The first leg portion located on the front side of the pair of second support legs 6 on the right side is located directly below the support groove 831 on the front side of the fourth flange portion 83 on the right side, and the second leg portion (not shown) located on the rear side of the pair of second support legs 6 on the right side is located directly below the support groove 831 on the rear side of the fourth flange portion 83. The first leg portion and the second leg portion protruding from the fourth side wall 24 have the same size and shape. The first leg portion protruding from the fourth side wall 24 is provided to have a size that can be accommodated in the second leg housing portion 7 on the rear side of the third side wall 23 on the left side, and the second leg portion protruding from the fourth side wall 24 is provided to have a size that can be accommodated in the second leg housing portion 7 on the front side of the third side wall 23 on the left side.

[0045] 2-3. First leg storage section and second leg storage section The pair of first leg housings 4 are provided on the inner surfaces of the first side wall 21 and the second side wall 22, respectively, and extend in the vertical direction. The pair of second leg housings 7 are provided on the inner surfaces of the third side wall 23 and the fourth side wall 24, respectively, and extend in the vertical direction.

[0046] The front pair of first leg housings 4 provided on the inner surface (rear surface) of the front first side wall 21 are disposed at positions adjacent to the opening 210 on the left-right outer side of the first side wall 21. The front pair of first leg housings 4 are provided at a portion of the first side wall 21 above the intermediate flange 10. The front pair of first leg housings 4 are located from the middle portion to the upper end of the first side wall 21 in the up-down direction. The front pair of first leg housings 4 open upward through the opening 800 of the first flange portion 80. The lower ends of the front pair of first leg housings 4 are closed by the intermediate flange 10. The front pair of first leg housings 4 are located above the front pair of first support legs 3.

[0047] In this embodiment, the first side wall 21 has a pair of bulging portions 211 that protrude outward (front side), open inward (rear side), and extend in the vertical direction. The inner surfaces of the pair of bulging portions 211 form a pair of first leg housing portions 4.

[0048] The pair of bulging portions 211 are disposed in the first side wall 21 at positions adjacent to the outer sides in the left-right direction of the opening 210. The pair of bulging portions 211 are provided integrally with the flanges 8, 9, and 10.

[0049] In this embodiment, one of the pair of bulging portions 211 and the vertical rib 11a protruding from the container body 2 are in contact with each other or face each other with a small gap therebetween. In particular, the left bulging portion 211 and the vertical rib 11a on the left side of the opening 210 are in contact with each other or face each other with a small gap therebetween. Therefore, the bulging portion 211 and the vertical rib 11a are not easily deformed even when a load is applied downward from the outside during stacking, etc., and the rigidity of the first side wall 21 is easily increased.

[0050] In this embodiment, the left first storage section 4a of the front pair of first leg storage sections 4 is disposed to the right of the first leg 3a (the opening 210 side), and the right second storage section 4b of the front pair of first leg storage sections 4 is disposed to the right of the second leg 3b (the opening 210 side). The first storage section 4a is shorter in the left-right direction than the second storage section 4b.

[0051] The pair of rear first leg housings 4 provided on the inner surface (front surface) of the rear second side wall 22 have the same structure as the pair of front first leg housings 4. The pair of rear first leg housings 4 open upward through the openings 810 of the second flange portion 81.

[0052] The second side wall 22 has a pair of bulging portions 220 that protrude outward (rearward) and open inward (frontward), and extend in the vertical direction. The inner surfaces of the pair of bulging portions 220 form a pair of first leg housing portions 4 on the rear side.

[0053] The left pair of second leg accommodating sections 7 provided on the inner surface (right surface) of the left third side wall 23 are provided in a portion of the third side wall 23 above the intermediate flange 10. The left pair of second leg accommodating sections 7 are located from the middle portion to the upper end of the third side wall 23 in the vertical direction. The left pair of second leg accommodating sections 7 open upward through an opening 820 of the third flange portion 82. The lower ends of the left pair of second leg accommodating sections 7 are closed by the intermediate flange 10. The left pair of second leg accommodating sections 7 are located above the left pair of second support legs 6.

[0054] In this embodiment, the third side wall 23 has a pair of bulging portions 230 that protrude outward (left side), open inward (right side), and extend in the vertical direction. The inner surfaces of the pair of bulging portions 230 form a pair of second leg housing portions 7.

[0055] The pair of bulging portions 230 are disposed at the front and rear ends of the third side wall 23. The pair of bulging portions 230 are provided integrally with the flanges 8, 9, and 10.

[0056] In this embodiment, the front first storage section 7a of the pair of left second leg storage sections 7 is disposed forward of the first leg 6a, and the rear second storage section 7b of the pair of left second leg storage sections 7 is disposed rearward of the second leg 6b. The first storage section 7a and the second storage section 7b have the same size and shape.

[0057] The pair of right-side second leg accommodating sections 7 provided on the inner surface (left surface) of the right-side fourth side wall 24 have the same structure as the pair of left-side second leg accommodating sections 7. The pair of right-side second leg accommodating sections 7 open upward through the opening 830 of the fourth flange portion 83.

[0058] The fourth side wall 24 has a pair of bulging portions 240 that protrude outward (to the right) and open inward (to the left), and extend in the vertical direction. The inner surfaces of the pair of bulging portions 240 form a pair of second leg housing portions 7.

[0059] The front first housing section 7c of the right pair of second leg housing sections 7 is located rearward of the front first leg section of the right pair of second support legs 6, and the rear second housing section 7d of the right pair of second leg housing sections 7 is located forward of the rear second leg section of the right pair of second support legs 6. The first housing section 7c and the second housing section 7d have the same size and shape.

[0060] In this embodiment, the opening area of ​​each of the first leg housing section 4 and the second leg housing section 7 is larger toward the upper portion.

[0061] 2-4.Door The door 5 opens and closes the opening 210. In this embodiment, as shown in Fig. 1 and Fig. 2, the lower end of the door 5 is rotatably connected to a connecting part 201 provided on the front end of the bottom wall 20 of the container body 2. This allows the entire door 5 to rotate in the front-rear direction around the lower end of the door 5, thereby opening and closing the opening 210.

[0062] In this embodiment, the door 5 is composed of an upper portion 50 and a lower portion 51 that are offset from each other in the front-rear direction.

[0063] The upper portion 50 is provided with a thickness (length in the front-rear direction) that fits from the front end faces of the flanges 8, 9, 10 and the vertical rib 11 to the rear face of the first side wall 21. When the opening 210 is closed by the door 5, an outer surface 500 (front surface) of the upper portion 50 is flush with or located rearward of the front end faces of the flanges 8, 9, 10 and the vertical rib 11. In this state, an inner surface 501 (rear surface) of the upper portion 50 is flush with or located forward of the inner surface (rear surface) of the first side wall 21.

[0064] A support groove 52 is provided in the upper end surface 502 of the upper portion 50. The support groove 52 has a structure similar to that of the support groove 801 of the upper end flange 8. The support groove 52 is provided in the rear part of the upper end surface 502. The support groove 52 has a bottom surface that is one step lower than the front part of the upper end surface 502. A locking portion 520 protrudes upward from the rear end part of the support groove 52.

[0065] The support groove 52 is provided over the entire length in the left-right direction on the upper end surface 502 of the upper portion 50. When the opening 210 is closed by the door 5, the support groove 52 is aligned with the second support groove 801b and the third support groove 801c located on the left and right sides thereof to form a single groove.

[0066] Here, it is preferable that at least one of the bottom surface of one longitudinal end of support groove 52 and the bottom surface of the end of support groove 801 adjacent to support groove 52 is an inclined surface or a curved convex surface that is inclined so that the portion closer to the end is located lower.

[0067] Specifically, at least one of the bottom surface of the left end of the support groove 52 and the bottom surface of the right end of the second support groove 801b is preferably an inclined surface or a convex curved surface. Also, at least one of the bottom surface of the right end of the support groove 52 and the bottom surface of the left end of the third support groove 801c is preferably an inclined surface or a convex curved surface. In this case, even if the position of the door 5 is shifted up or down, the sliding movement of the member (specifically, the support leg 3) is unlikely to be hindered on the bottom surfaces of the support groove 52 and the second support groove 801b and on the bottom surfaces of the support groove 52 and the support groove 801c.

[0068] The upper portion 50 has, on its side surfaces (left and right surfaces), locking projections 503 for locking the upper portion 50 to the first side wall 21.

[0069] In this embodiment, the upper portion 50 is further provided with an operating portion 53 for locking / unlocking the door 5 to / from the first side wall 21. By operating the operating portion 53, the left and right locking protrusions 503 can be moved between a locked position where they are locked to the first side wall 21 and an unlocked position where they are released from the locking to the first side wall 21.

[0070] The door 5 is locked to the first side wall 21 when the left and right locking protrusions 503 move to the outside of the door 5 (outside in the left-right direction) and are inserted into the locking recesses 110 (see FIG. 3 ) of the left and right vertical ribs 11a of the opening 210. The door 5 is released from the locking to the first side wall 21 when the left and right locking protrusions 503 move to the inside of the door 5 and come out of the locking recesses 110.

[0071] As shown in FIG. 2, the lower portion 51 has approximately the same thickness (length in the front-rear direction) as the upper portion 50. The lower portion 51 is connected to the lower end portion of the upper portion 50. The upper portion 50 and the lower portion 51 have the same length in the left-right direction and are located at the same positions in the left-right direction. The upper portion 50 and the lower portion 51 are connected via a plurality of connecting ribs 54 positioned at intervals in the left-right direction. Each of the multiple connecting ribs 54 is a flat rib in the shape of a right triangle that is integrally provided with the lower end portion of the inner surface of the upper portion 50 and the upper surface of the lower portion 51.

[0072] When the opening 210 is closed by the door 5, the outer surface 510 (front surface) of the lower portion 51 is flush with or located behind the outer surface (front surface) of the portion of the first side wall 21 below the intermediate flange 10.

[0073] A connected part is provided at the lower end of the lower part 51, which is rotatably connected to the connecting part 201 of the bottom wall 20 of the container body 2. The connecting part 201 and the connected part may have any structure as long as they are rotatably connected to each other, and a well-known connecting structure is applicable.

[0074] The upper part 50 of the door 5 is mainly composed of, for example, a plate-shaped main body having a thickness approximately equal to that of the first side wall 21, vertical ribs protruding outward (front side) from the left and right ends of the main body, and horizontal ribs protruding outward (front side) from the top and bottom ends of the main body. The lower part 51 of the door 5 is mainly composed of, for example, a plate-shaped main body having a thickness approximately equal to that of the first side wall 21, vertical ribs protruding inward (rear side) from the left and right ends of the main body, and horizontal ribs protruding inward (rear side) from the top and bottom ends of the main body.

[0075] The door 5 described above does not protrude inward at the portion corresponding to the upper part of the first side wall 21 when the opening 210 is closed, and does not protrude outward at the portion corresponding to the lower part of the first side wall 21, so that it is less likely to get in the way when stacking the containers 1.

[0076] Furthermore, when the opening 210 of the door 5 is closed, the upper portion 50 does not protrude outward beyond the flanges 8, 9, 10 and the vertical rib 11. Therefore, when the container 1 is transported by a transport means such as a roller conveyor, the door 5 can be prevented from being caught and opened by a guide frame provided along the transport direction of the roller conveyor.

[0077] In addition, when the opening 210 of the door 5 is closed, the vertical ribs constituting the upper part 50 of the door 5 contact the vertical ribs 11a around the opening 210 of the container body 2 or face each other with a small gap therebetween. Therefore, the vertical ribs constituting the upper part 50 of the door 5 and the adjacent vertical ribs 11a are unlikely to deform even if a load is applied downward from the outside when stacking the doors.

[0078] 3.How to stack containers Next, a stacking method for stacking two of the above-described containers 1 vertically will be described.

[0079] The containers 1 of this embodiment can be arranged in twos above each other in a stacked state as shown in FIG. 4A or in a nested state as shown in FIG. 4B.

[0080] In the stacked state shown in FIG. 4A, the lower container 1A and the upper container 1B are oriented in the same manner as the container 1 shown in FIG.

[0081] In the stacked state, the legs 3a, 3b of the front pair of first support legs 3 of the upper container 1B are placed on the front pair of support grooves 801a, 801c of the lower container 1A. Also, the rear pair of first support legs 3 of the upper container 1B are placed on the rear pair of support grooves 811a, 811b of the lower container 1A. Also, the left pair of second support legs 6 of the upper container 1B are placed on the left pair of support grooves 821 of the lower container 1A. Also, the left pair of second support legs 6 of the upper container 1B are placed on the right pair of support grooves 831 of the lower container 1A.

[0082] As a result, the two containers 1A and 1B are stacked vertically with only the lower end of the upper container 1B fitted inside the lower container 1A. In the stacked state, the doors 5 of the upper and lower containers 1A and 1B can each be opened.

[0083] In the nested state shown in Figure 4B, the lower container 1A is oriented in the same direction as the container 1 shown in Figure 1, and the upper container 1B is the container 1 shown in Figure 1 rotated 180 degrees around a vertical axis passing through the center of the container body 2.

[0084] In the nested state, the pair of first support legs 3 (the pair of first support legs 3 protruding from the second side wall 22) on the front side of the upper container 1B are inserted one-to-one into the pair of first leg housing parts 4 on the front side of the lower container 1A. Also, the pair of first support legs 3 (the pair of first support legs 3 protruding from the first side wall 21) on the rear side of the upper container 1B are inserted one-to-one into the pair of first leg housing parts 4 on the rear side of the lower container 1A. Also, the pair of second support legs 6 (the pair of second support legs 6 protruding from the fourth side wall 24) on the left side of the upper container 1B are inserted one-to-one into the pair of second leg housing parts 7 on the left side of the lower container 1A. Also, the pair of second support legs 6 (the pair of second support legs 6 protruding from the third side wall 23) on the right side of the upper container 1B are inserted one-to-one into the pair of second leg housing parts 7 on the right side of the lower container 1A. The middle flange 10 of the upper container 1B rests on the upper surface of the upper end flange 8 of the lower container 1A. As a result, the two containers 1A and 1B are stacked vertically with the lower half of the upper container 1B fitted inside the lower container 1A. In the nested state, of the upper and lower containers 1A and 1B, only the door 5 of the lower container 1A can be opened.

[0085] 4. Effects In the container 1 of the present embodiment described above, a pair of first support legs 3 having convex stripes extending in the vertical direction and a pair of first leg receiving portions 4 having concave stripes extending in the vertical direction are provided on the first side wall 21 having the opening 210, on either side of the opening 210. Therefore, in the container 1 of the present embodiment, the first side wall 21 having the opening 210 can be reinforced by the pair of first support legs 3 and the pair of first leg receiving portions 4, making it easy to ensure stacking strength.

[0086] Furthermore, in the container 1 of this embodiment, the flanges 8, 9, and 10 of the first side wall 21 are connected in a lattice pattern via the vertical ribs 11, and the flanges 8, 9, and 10 connected in this lattice pattern are connected to the first support leg 3. Therefore, in the container 1 of this embodiment, the first side wall 21 can be reinforced over its entire length in the vertical direction by the flanges 8, 9, and 10 and the first support leg 3, making it easier to ensure the stacking strength of the first side wall 21 having the opening 210.

[0087] Furthermore, in the container 1 of this embodiment, the pair of first support legs 3 and the pair of first leg accommodating portions 4 are provided on the first side wall 21 at positions offset in the left-right direction, so that the first side wall 21 having the opening 210 can be easily reinforced by each of the pair of first support legs 3 and the pair of first leg accommodating portions 4.

[0088] Furthermore, in the container 1 of this embodiment, the first side wall 21 can be reinforced by the pair of first support legs 3 and the pair of first leg housing portions 4, so that the opening 210 can be provided wide while ensuring the rigidity of the first side wall 21, making it easy to pick the contents through the opening 210. Furthermore, because the opening 210 can be provided wide, an operator can easily insert his or her hand into the opening 210 and easily bring the contents from the back side of the container 1 to the front side.

[0089] Furthermore, in the container 1 of this embodiment, the opening 210 can be opened even when a plurality of containers 1 are stacked, making it easy to pick up the contents.

[0090] Furthermore, in the container 1 of this embodiment, the side walls 21, 22 are provided with a pair of first support legs 3 and a pair of first leg housings 4, so that when two containers 1 are stacked vertically, the first support legs 3 of the upper container 1B can be housed in the first leg housing 4 of the lower container 1A (see FIG. 4B). Therefore, in the container 1 of this embodiment, a part of the upper container 1B can be stored inside the lower container 1A, so that the containers can be arranged compactly, and at this time, the work of folding the side walls as in the conventional example is not necessary, so that the work of stacking compactly can be easily performed and the number of work steps can be reduced.

[0091] Furthermore, in the container 1 of this embodiment, the upper end surface 502 of the door 5 is provided with a support groove 52 that is aligned with the support groove 801 of the upper end flange 8. Therefore, in the container 1 of this embodiment, when stacking the containers 1, the first support leg 3 of the upper container 1A can be slid over the support groove 801 of the door 5, facilitating the task of achieving a stacked or nested state.

[0092] 2, in the container 1 of this embodiment, when the opening 210 is closed by the door 5, the upper part of the door 5 does not protrude inward from the first side wall 21, and the lower part of the door 5 does not protrude outward from the first side wall 21. Therefore, in the container 1 of this embodiment, the door 5 is unlikely to get in the way when stacking in the nested state shown in FIG. 4B. In addition, in the container 1 of this embodiment, when stacking, contact of the upper container 1A with the door 5 of the lower container 1B can be suppressed, and unintentional opening of the door 5 can be prevented.

[0093] 5. Variations Next, a description will be given of modified examples of the above-mentioned container 1. The modified examples described below can be appropriately combined.

[0094] The door 5 may be configured to open and close the opening 210, and is not limited to the structure shown in Figs. 1 and 2. For example, the door 5 may be attached to the container body 2 so as to rotate around the upper end of the door 5. The door 5 may be provided so as to be detachable from the container body 2. The door 5 may be foldable by rotatably connecting the upper part 50 and the lower part 51. The door 5 may be rotatably connected to the container body 2 so as to be switchable between a state in which only the upper part 50 is open and a state in which both the upper part 50 and the lower part 51 are open.

[0095] Moreover, the opening 210 does not have to be provided from the upper end to the lower end of the first side wall 21. For example, the opening 210 may be provided in a portion below the upper end of the first side wall 21, and does not have to be open upward.

[0096] Furthermore, the location where the opening 210 is provided is not limited to the first side wall 21. The opening 210 may be provided in the second side wall 22, or in the third or fourth side wall 23 or 24. In any case, however, the opening 210 is provided in a portion of the side walls 22, 23, 24 between the pair of support legs 3, 6 and between the pair of leg housings 4, 7.

[0097] (Embodiment 2) Next, the container 1 of the second embodiment shown in Figures 5 to 7 will be described in detail with reference to the drawings. In the following, the configurations of the container 1 of the second embodiment that are common to the first embodiment will be denoted by the same reference numerals in the drawings and detailed description will be omitted, and the configurations that differ from the first embodiment will be described in detail.

[0098] In the container 1 of the second embodiment, the opening 210 is provided in a portion of the first side wall 21 that is above the intermediate flange 10. The opening 210 is provided from the upper end of the first side wall 21 to the middle portion in the up-down direction.

[0099] The intermediate flange 10 is composed of a portion that is generally U-shaped in plan view and protrudes outward from the side walls 21, 23, and 24, and a portion that is generally U-shaped in plan view and protrudes outward from the side walls 22, 23, and 24. That is, in the container 1 of the second embodiment, the intermediate flange 10 also protrudes from the center of the first side wall 21 in the left-right direction.

[0100] A connecting portion 201 to which the lower end portion of the door 5 is rotatably connected is provided in a portion of the intermediate flange 10 in front of the opening 210. The remaining structure of the container body 2, excluding the opening 210, the intermediate flange 10, and the connecting portion 201, is the same as that of the container body 2 of the first embodiment.

[0101] The door 5 has a common structure to the upper portion 50 of the door 5 in embodiment 1. In this embodiment, a connected portion that is rotatably connected to the connecting portion 201 of the intermediate flange 10 is provided at the lower end of the door 5. When the opening 210 is closed, the door 5 does not protrude inward beyond the inner surface of the first side wall 21, and therefore does not interfere with stacking of the containers 1.

[0102] The containers 1 of the second embodiment can be arranged in two stacks, one above the other, in a stacked state shown in Fig. 7A or in a nested state shown in Fig. 7B. When the container 1 of the second embodiment is in a nested state, the portion of the upper container 1B below the intermediate flange 10 is stored in the lower container 1A, and the door 5 of the upper container 1B is exposed. Therefore, when the container 1 of the second embodiment is in either the stacked state or the nested state, the door 5 of the upper container 1B can be opened and closed.

[0103] In the container 1 of the second embodiment described above, similarly to the container 1 of the first embodiment, a pair of first support legs 3 having convex stripes extending in the vertical direction and a pair of first leg receiving portions 4 having concave stripes extending in the vertical direction are provided on the first side wall 21 having the opening 210, on either side of the opening 210. Therefore, in the container 1 of the second embodiment, the first side wall 21 having the opening 210 can be reinforced by the pair of first support legs 3 and the pair of first leg receiving portions 4, making it easy to ensure stacking strength.

[0104] In addition, in the container 1 of embodiment 2, the pair of first support legs 3 and the pair of first leg accommodating portions 4 are connected to the first side wall 21 via the intermediate flange 10, making it easier to reinforce the first side wall 21 having the opening 210.

[0105] Note that the container 1 of the second embodiment may also adopt the modified examples of the container 1 of the first embodiment as appropriate. The door 5 of the container 1 of the second embodiment may be attached to the container body 2 so as to be slidable in the up and down direction. In this case, the door 5 can open the opening 210, for example, by moving downward from a position blocking the opening 210.

[0106] (Embodiment 3) Next, the container 1 of the third embodiment shown in Figures 8A and 8B will be described in detail with reference to the drawings. In the following, the configurations of the container 1 of the third embodiment that are common to the first embodiment will be denoted by the same reference numerals in the drawings and detailed description will be omitted, and the configurations that are different from the first embodiment will be described in detail.

[0107] In the container 1 of the third embodiment, the first side wall 21 and the second side wall 22 each have a pair of bulging portions 212, 221 that protrude outward, open inward, and extend in the vertical direction.

[0108] Each of the pair of bulging portions 212, 221 is located across from the upper end to the lower end of the side walls 21, 22. In the container 1 of the third embodiment, outer surfaces of the pair of bulging portions 212 form a pair of first support legs 3, and inner surfaces of the pair of bulging portions 221 form a pair of first leg housing portions 4. The opening 210 of the first side wall 21 is located between the pair of bulging portions 212.

[0109] Of the flanges 8, 9, 10 and vertical rib 11 of the container 1 of embodiment 1, the container body 2 only has the upper end flange 8. Note that the side walls 23, 24 of the container body 2 are flat, and the container body 2 does not have the second support leg 6 and the second leg receiving portion 7.

[0110] The door 5 is provided on the first side wall 21 of the container body 2 so as to open and close the opening 210. The door 5 is provided on the first side wall 21 in an appropriate structure so as not to interfere with stacking of the containers 1. In this embodiment, the door 5 is configured so that the outer surface (front surface) of the door 5 is substantially flush with the outer surface (front surface) of the first side wall 21, and the inner surface (rear surface) of the door 5 is substantially flush with the inner surface (rear surface) of the first side wall 21.

[0111] The containers 1 of the third embodiment can be arranged in twos above each other in a stacked state as shown in FIG. 8A or in a nested state as shown in FIG. 8B.

[0112] In the stacked state shown in FIG. 8A, the upper container 1B is the same as the lower container 1A rotated 180 degrees around a vertical axis passing through the center of the container body 2.

[0113] In the stacked state, a pair of first support legs 3 (a pair of first support legs 3 protruding from the second side wall 22) on the front side of the upper container 1B rests on a pair of support grooves 801a, 801c on the front side of the lower container 1A. Also, a pair of first support legs 3 (a pair of first support legs 3 protruding from the first side wall 21) on the rear side of the upper container 1B rests on a pair of support grooves 811a, 811b on the rear side of the lower container 1A. As a result, the two containers 1A, 1B are stacked in the vertical direction with only the lower end of the upper container 1B fitted inside the lower container 1A. In the stacked state, the doors 5 of the upper and lower containers 1A, 1B can be opened.

[0114] In the nested state shown in Fig. 8B, the upper container 1B and the lower container 1A are oriented in the same direction. In the nested state, almost the entire upper container 1B, except for the upper end flange 8 of container 1B, fits inside the lower container 1A.

[0115] In the container 1 of the third embodiment described above, similarly to the container 1 of the first embodiment, the first side wall 21 having the opening 210 is provided with a pair of bulges 212 (i.e., a pair of first support legs 3 and a pair of first leg accommodating portions 4) extending in the vertical direction so as to sandwich the opening 210. Therefore, in the container 1 of the third embodiment, the first side wall 21 having the opening 210 can be reinforced by the pair of first support legs 3 and the pair of first leg accommodating portions 4, making it easy to ensure stacking strength.

[0116] Furthermore, the container 1 of the third embodiment is easy to manufacture because the pair of bulging portions 212 also serve as the pair of first support legs 3 and the pair of first leg housing portions 4. Moreover, the proportion of the first side wall 21 that is occupied by the pair of first support legs 3 and the pair of first leg housing portions 4 can be reduced, making it easy to provide a large opening 210 in the first side wall 21.

[0117] Furthermore, in the container 1 of embodiment 3, in a nested state, most of the upper container 1B fits into the lower container 1A, making it easy to reduce the volume when stacked.

[0118] In addition, the container 1 of the third embodiment can also adopt the modified examples of the container 1 of the first and second embodiments as appropriate.

[0119] (summary) As in the above-described first to third embodiments and their modifications, the container 1 of the first aspect has the following configuration.

[0120] That is, the container 1 of the first embodiment includes a container body 2, a pair of support legs 3 having convex ridges, a pair of leg housings 4 having concave ridges, an opening 210, and a door 5 for opening and closing the opening 210. The container body 2 is a rectangular box shape with an open top, and has a first side wall 21 and a second side wall 22 facing each other. The pair of support legs 3 protrude from the outer surfaces of the first side wall 21 and the second side wall 22, respectively, and extend in the vertical direction. The pair of leg housings 4 are provided on the inner surfaces of the first side wall 21 and the second side wall 22, respectively, and extend in the vertical direction. The opening 210 is provided in a portion of the first side wall 21 between the pair of support legs 3 and between the pair of leg housings 4.

[0121] In the container 1 of the first embodiment having the above configuration, a pair of support legs 3 of convex stripes extending in the vertical direction and a pair of leg housings 4 of concave stripes extending in the vertical direction are provided on the first side wall 21 having the opening 210 so as to sandwich the opening 210. Therefore, in the container 1 of the first embodiment, the first side wall 21 having the opening 210 can be reinforced by the pair of support legs 3 and the pair of leg housings 4, and stacking strength can be easily ensured. In addition, in the container 1 of the first embodiment, since the pair of support legs 3 and the pair of leg housings 4 are provided on the side walls 21 and 22, when two containers 1 are stacked in the vertical direction, the support legs 3 of the upper container 1B can be accommodated in the leg housing 4 of the lower container 1A. Therefore, in the container 1 of the first embodiment, a part of the upper container 1B can be accommodated inside the lower container 1A, so that it can be arranged compactly, and at this time, since the operation of folding the side walls as in the conventional example is not required, the operation of stacking compactly can be easily performed.

[0122] As in the above-mentioned first to third embodiments and their modifications, the container 1 of the second embodiment additionally has the following configuration in addition to the configuration of the container 1 of the first embodiment.

[0123] That is, in the container 1 of the second embodiment, the opening 210 opens upward in the thickness direction of the first side wall 21. Support grooves 801, 52 extending in one direction are provided so as to be continuous with each other in a portion of the upper end face of the container body 2 (the upper end face of the upper end flange 8) surrounding the opening 210 and in an upper end face 502 of the door 5.

[0124] In the container 1 of the second embodiment having the above configuration, when two containers 1 are stacked vertically, the upper container 1B can be moved while sliding the support legs 3 of the upper container 1B over the support grooves 801 on the upper end surface of the container body 2 of the lower container 1A and the support grooves 52 on the upper end surface 502 of the door 5. Therefore, the container 1 of the second embodiment can be easily stacked.

[0125] As in the above-mentioned second embodiment and its modified example, the container 1 of the third embodiment additionally comprises the following configuration in addition to the configuration of the container 1 of the first or second embodiment.

[0126] That is, in the container 1 of the third embodiment, the opening 210 is located above the lower ends of the pair of leg housings 4 .

[0127] In the container 1 of the third embodiment having the above configuration, when two containers 1 are stacked vertically and the support legs 3 of the upper container 1B are accommodated in the leg accommodation parts 4 of the lower container 1A in a stacked state, the opening 210 and the door 5 of the upper container 1B tend to be located higher than the lower container 1A. Therefore, in the container 1 of the third embodiment, the opening 210 can be easily opened and closed by the door 5 even in the stacked state.

[0128] As in the above-mentioned first and second embodiments and their modifications, the container 1 of the fourth aspect additionally has the following configuration in addition to the configuration of the container 1 of any one of the first to third aspects.

[0129] That is, in the container 1 of the fourth embodiment, the pair of support legs 3 and the pair of leg receiving portions 4 are positioned so as to be shifted from each other on the first side wall 21.

[0130] With the above-described configuration, in the container 1 of the fourth embodiment, the first side wall 21 having the opening 210 is easily reinforced by both the pair of support legs 3 and the pair of leg receiving portions 4 .

[0131] As in the above-mentioned third embodiment and its modified example, the container 1 of the fifth aspect additionally has the following configuration in addition to the configuration of the container 1 of any one of the first to third aspects.

[0132] That is, in the container 1 of the fifth embodiment, the first side wall 21 has a pair of bulging portions 212 that protrude outward, open inward, and extend in the vertical direction. The outer surfaces of the pair of bulging portions 212 form a pair of support legs 3, and the inner surfaces of the pair of bulging portions 212 form a pair of leg housing portions 4.

[0133] By being provided with the above-mentioned configuration, in the container 1 of the fifth embodiment, the pair of bulges 212 serve as both a pair of support legs 3 and a pair of leg storage sections 4, making it easy to provide a large opening 210 in the first side wall 21 and making it easy to manufacture the container 1.

[0134] The present disclosure has been described above based on the embodiments shown in the attached drawings, but the present disclosure is not limited to the above embodiments, and appropriate design changes are possible within the intended scope of the present disclosure. [Explanation of symbols]

[0135] 1. Transport container with door 1A Transport container with door 1B Transport container with door 2 Container body 21 First side wall 210 Opening 212 Bulge 22 Second side wall 3 Support legs 4 Leg storage area 5 Doors 52 Support groove 502 Top surface 801 Support groove

Claims

1. A container body having a rectangular box shape with an open top and a first side wall and a second side wall opposed to each other in a first direction; A pair of support legs each having a protruding stripe protruding from an outer surface of the first side wall and the second side wall and extending in the up-down direction; A pair of leg accommodating portions each having a recessed stripe extending in the vertical direction and provided on an inner surface of each of the first side wall and the second side wall; an opening provided in a portion of the first side wall between the pair of support legs and between the pair of leg accommodating portions; A door for opening and closing the opening, The pair of support legs are positioned at an interval in a second direction perpendicular to the first direction in a plan view, The pair of leg receiving portions are positioned at an interval in the second direction, In the first side wall in which the opening is provided, the pair of support legs and the pair of leg accommodating portions are positioned to be shifted from each other in the second direction, When stacking two door-equipped transport containers vertically, the pair of support legs and the pair of leg accommodating portions are formed on each of the first side wall and the second side wall such that, when the upper door-equipped transport container is rotated 180 degrees around a vertical axis and placed on top of the lower door-equipped transport container, the pair of support legs of the second side wall of the upper door-equipped transport container are inserted into the pair of leg accommodating portions of the first side wall of the lower door-equipped transport container, and the pair of support legs of the first side wall of the upper door-equipped transport container are inserted into the pair of leg accommodating portions of the second side wall of the lower door-equipped transport container. A transport container with a door.

2. One of the pair of support legs includes a vertical rib protruding outward from an edge portion of the opening in the second direction on the outer surface of the first side wall, The outer surface of the first side wall is provided with another longitudinal rib located directly above the longitudinal rib and continuous in a straight line with the longitudinal rib.

2. The transport container with door of claim 1.

3. The first side wall has a pair of bulging portions that protrude outward, open inward, and extend in the up-down direction, Inner surfaces of the pair of bulging portions constitute the pair of leg housing portions, One of the pair of bulging portions is in contact with the other longitudinal rib or faces the other longitudinal rib with a gap therebetween.

3. The transport container with door according to claim 2.

4. The opening portion is open in a thickness direction of the first side wall and upward, A support groove extending in the second direction is provided so as to be continuous with a portion of the upper end surface of the container body surrounding the opening and an upper end surface of the door.

4. A transport container with a door according to any one of claims 1 to 3.

5. At least one of the bottom surface of the end of the support groove of the door in the second direction and the bottom surface of the end of the support groove of the container body adjacent to the support groove of the door is an inclined surface or a curved convex surface that is inclined so as to be positioned downward as it approaches the end.

5. The transport container with door according to claim 4.

6. The door is configured with an upper portion and a lower portion that are offset from each other in the first direction, A connecting rib is provided at the corner portion between the upper portion and the lower portion.

6. A transport container with a door according to any one of claims 1 to 5.

7. The opening is located above the lower ends of the pair of leg housings.

6. A transport container with a door according to any one of claims 1 to 5.

8. An intermediate flange extending in the second direction is provided at a vertical intermediate portion of the outer surface of the first side wall, The lower end of the door is rotatably connected to the intermediate flange.

8. The transport container with door of claim 7.

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