JP7090897B2 - container - Google Patents

Description

The present invention puts the lower container and the upper container into a nesting state or a stacking state depending on whether the upper container is swiveled by 180 ° in a plan view with respect to the lower container and stacked without swirling. Regarding possible containers.

Conventionally, the container described in Patent Document 1 is known as this type of container. FIG. 10 is an explanatory diagram showing a part of the container described in Patent Document 1. The conventional container 100 includes an upper flange 120 projecting outward from the side wall portion 150, a lower flange 130, connecting ribs 140 and 141 connecting the upper flange 120 and the lower flange 130, and the side wall portion 150 from the inside to the outside. It is provided with a support portion 110 formed by being depressed toward the surface. When the lower container 100 and the upper container 100 are in a stacking state, the lower end 112 of the support portion 110 of the upper container 100 is supported by the upper surface of the upper flange 120 of the lower container 100. When the lower container 100 and the upper container 100 are in the nesting state, the upper container is swiveled by 180 ° in a plan view, and the outer surface of the support portion 110 of the upper container 100 supports the lower container 100. It is accepted by the depressed portion on the inner surface of the portion 110. That is, the support portion 110 of the lower container 100 also serves as a receiving portion that receives the support portion 110 of the upper container 100 when the upper container 100 is nested in the lower container 100.

Jitsukaisho 60-190624

By the way, in the above-mentioned conventional container 100, a part 111 above the support portion 110 connects the upper flange 120 and the lower flange 130. Further, a part 111 is surrounded by connecting ribs 140 and 141. As a result, in the portion surrounded by the upper flange 120, the lower flange 130, the connecting ribs 140, 141, and the part 111 of the support portion 110, a space K relatively narrow compared to the other parts is formed. It is formed.
Therefore, when the container 100 is washed with washing water, the drainage in the space K is poor, and the washing water tends to remain in the space K. That is, the conventional container 100 has a problem of poor detergency.

Therefore, the present invention has been created to solve the above problems, and an object of the present invention is to provide a container capable of improving detergency.

(First feature of the present invention)
In order to achieve the above-mentioned object, the container of the present invention has a bottom wall portion having a substantially rectangular shape in a plan view, a side wall portion extending upward from the side portion of the bottom wall portion, and a side wall portion extending outward from above the side wall portion. It is provided with an upper flange, a lower flange that is located below the upper flange and projects outward from the side wall portion, and a connecting rib that connects the upper flange and the lower flange in the vertical direction.
Further, in the container of the present invention, the lower container and the upper container are nested or stacked depending on whether the upper container is swiveled by 180 ° in a plan view with respect to the lower container and stacked without swirling. It is possible to put it in a state.
Further, the container of the present invention is formed so as to project outward from the side wall portion, and is formed by being recessed from the inside to the outside of the support portion supported by the upper flange of the lower container in the stacking state and from the inside to the outside of the side wall portion. It is provided with a receiving part that can receive the support part of the upper container in the nesting state.
In the container of the present invention, at least a part of the wall portion constituting the support portion or the receiving portion is connected to the upper flange and the lower flange, and the upper flange has a through hole penetrating vertically. , The upper end of the connecting rib is exposed from the through hole, and in the stacking state, the lower part of the support portion of the upper container is supported by the upper end of the connecting rib exposed from the through hole of the lower container. The first feature is that it is done.

Since the upper flange has through holes that penetrate up and down, after cleaning the container, the container is turned inside out (the back surface of the bottom wall is facing upward), and the space between the upper flange and the lower flange is reached. The washing water remaining in the flange can be drained from the through hole. That is, the through hole acts as a drain hole.
In particular, since at least a part of the wall portion constituting the support portion or the receiving portion is connected to the upper flange and the lower flange, the space surrounded by the above part and the connecting rib has the above part. Since it is narrower than the structure that does not, drainage is poor and washing water tends to remain.
However, since the upper end of the connecting rib is exposed from the through hole, the washing water remaining in the space can be drained from the through hole by turning the container upside down.
Further, when the washing water is sprayed between the upper flange and the lower flange, the water containing the dirt removed by the washing is prevented from remaining between the upper flange and the lower flange and escapes from the through hole. be able to. That is, the through hole acts as a water passage hole.
Therefore, if the container of the present invention having the first feature is carried out, the cleaning efficiency of the container can be improved.
Further, in the stacking state, the lower part of the support portion of the upper container is configured to be supported by the upper end of the connecting rib exposed from the through hole of the lower container, so that the load applied to the lower container can be applied. It can be dispersed in the connecting ribs.
Therefore, it is possible to prevent the side wall portion of the lower container from bulging outward.

(Second feature of the present invention)
Further, in the above-mentioned first feature, the container of the present invention has a protruding portion protruding downward at the lower portion of the support portion, and the upper end of the connecting rib is located at a position lower than the upper opening edge of the through hole. The second feature is that the protrusion of the support portion of the upper container is supported by the upper end of the connecting rib of the lower container in the stacking state.

Since the upper end of the connecting rib is arranged at a position lower than the opening edge on the upper side of the through hole, the protruding portion of the support portion of the upper container is located at a position lower than the opening edge of the through hole in the stacking state. That is, the protruding portion of the support portion is surrounded by the opening edge of the through hole.
Therefore, when transporting the containers in a stacking state, the protrusion of the upper container hits the opening edge of the through hole of the lower container even when a force for moving the upper container in the horizontal direction acts. Since they are in contact with each other, the protruding portion of the upper container does not come off from the through hole, so that the stacking state can be maintained.

(Third feature of the present invention)
Further, in the above-mentioned second feature, the container of the present invention has the protrusion and the lower side of the upper container in a state where the protrusion of the upper container is supported by the upper end of the connecting rib of the lower container. The third feature is that a gap is formed between the container and the through hole of the container.

Even when the containers are washed in a stacking state, the washing water on the upper flange can be drained through the gaps in the through holes.
Moreover, when the upper surface of the lower flange is provided with a lower flange inclined surface that is inclined so as to go down toward the outside of the container, the washing water drained from the gap of the through hole presses the upper surface of the lower flange. Since it runs down, it is difficult for the washing water to remain on the upper surface of the lower flange.

(Fourth feature of the present invention)
Further, in any one of the above-mentioned first to third features, the container of the present invention is provided with an upper flange inclined surface inclined so as to go down toward the inside of the container on the lower surface of the upper flange. The third feature is that the upper surface of the lower flange is provided with a lower flange inclined surface that is inclined so as to go down toward the outside of the container.

Since the lower surface of the upper flange is provided with an upper flange inclined surface that is inclined so as to go down toward the inside of the container, when the container is turned over (the back surface of the bottom wall portion faces upward). Then, the inclined surface of the upper flange changes to an inclined state so as to go down toward the outside of the container.
Therefore, when the container is turned inside out for cleaning, the cleaning water applied to the lower surface of the upper flange flows down along the lower surface of the upper flange, so that the cleaning water is unlikely to remain on the lower surface of the upper flange.
Further, since the upper surface of the lower flange is provided with an inclined lower flange surface that is inclined so as to go down toward the outside of the container, the cleaning water applied to the upper surface of the lower flange when cleaning the container is provided. Is unlikely to remain on the upper surface of the lower flange because it flows down along the upper surface of the lower flange.

(Fifth feature of the present invention)
Further, in the container of the present invention, in any one of the above-mentioned first to fourth features, the upper flange is provided with a stepped portion, and the through hole is provided in the stepped portion, and the through hole is provided. The fifth feature is that the edge of the through hole is provided with a through hole inclined portion that descends to the through hole.

Since the upper flange is provided with a stepped portion and the through hole is provided in the stepped portion, a force for moving the upper container in the horizontal direction acts when transporting the container in a stacking state, and the upper side is provided with a stepped portion. Stacking because the lower part of the support part abuts on the stepped part of the lower container even if the lower part of the support part of the container comes off from the upper end of the connecting rib exposed from the through hole of the lower container. The state can be maintained.
Further, when stacking the containers, the lower part of the support portion of the upper container can be brought into contact with the stepped portion of the lower container and slid along the stepped portion for stacking. That is, the stepped portion of the lower container can be used like a rail for sliding the upper container.
Therefore, it is possible to shorten the walking distance while the upper container is lifted during stacking, so that the labor of the operator can be reduced.
Further, since the through hole inclined portion is provided on the edge of the through hole, the washing water applied around the edge of the through hole is guided to the through hole inclined portion and drained from the through hole. easy.
Further, when the support portion of the upper container is slid along the stepped portion of the lower container, the support portion of the upper container slides down on the inclined portion of the through hole toward the through hole, so that the support portion is formed through the through hole. Easy to lure into. That is, stacking can be easily performed, and the upper container can be easily positioned.

(Sixth feature of the present invention)
Further, in any one of the above-mentioned first to fifth features, the container of the present invention communicates with the inside and the outside of the container at the connecting portion connecting the lower portion of the support portion and the bottom wall portion. The sixth feature is that the communication holes are formed, and in the nesting state, the communication holes of the upper container and the communication holes of the lower container are configured to communicate with each other.

Since the connecting portion that connects the lower part of the support portion and the bottom wall portion has a communication hole that communicates with the inside and the outside of the container, the washing water collected at the bottom of the container during cleaning is discharged from the communication hole. Can be drained.
Further, when the container is turned inside out and dried after cleaning, the inside of the container can be ventilated through the communication holes, so that drying can be promoted.
Further, in the nesting state, the communication hole of the upper container and the communication hole of the lower container are configured to communicate with each other, so that the washing water remaining inside the upper container is used as the upper side. It is possible to drain water from the communication hole of the container to the outside through the communication hole of the lower container.

By implementing the container of the present invention, it is possible to provide a container capable of improving detergency.

It is a perspective view which shows the appearance of the container which concerns on embodiment of this invention. It is a perspective view of the container shown in FIG. 1 as seen from the back surface. It is a partially enlarged view of the left rear corner part of the container shown in FIG. It is a perspective view which shows the state which the container shown in FIG. 1 is in a stacking state. FIG. 4 is a cross-sectional view taken along the line AA of FIG. It is an enlarged view of the region E1 in FIG. FIG. 4 is a cross-sectional view taken along the line BB in FIG. FIG. 7 is an enlarged view of region E2 in FIG. 7. It is a perspective view which shows the state which the container shown in FIG. 1 is in a nesting state. It is explanatory drawing which shows a part of the container described in Patent Document 1. FIG.

The container according to the embodiment of the present invention will be described with reference to the drawings.
In the following description, for convenience of explanation, in FIG. 1, the diagonally upper right direction is the right, the diagonal lower left direction is the left, the diagonal lower right direction is the rear, and the diagonal upper left direction is the front. In other figures, the direction shown in FIG. 1 is used as a reference.

[Main components of the container]
First, the main components of the container of the present embodiment will be described.
The container 1 according to the present embodiment is a container that can be nested or stacked, and depending on whether the upper container 1 is swiveled by 180 ° in a plan view with respect to the lower container 1 or is stacked without swirling. It can be in a nesting state (see FIG. 9) or a stacking state (see FIG. 4). As shown in FIG. 1, the container 1 according to the present embodiment has a bottom wall portion 20, first side wall portions 30, 31, second side wall portions 40, 41, first upper flanges 50, 50, and a first. 2. The upper flanges 60, 60, the first lower flanges 51, 51 (see FIG. 7), the second lower flanges 61, 61 (see FIG. 5), and a total of eight support portions 80 (see FIG. 2). It is provided with a total of eight receiving portions 90, a plurality of connecting ribs 70, and a total of eight through holes 10.
Hereinafter, when the matters common to the first side wall portions 30, 31 and the second side wall portions 40, 41 are described, they may be simply referred to as side wall portions. Further, when explaining the matters common to the first upper flange 50 and the second upper flange 60, it may be simply referred to as an upper flange. Further, when explaining the matters common to the first lower flange 51 and the second lower flange 61, it may be simply referred to as a lower flange. Further, when explaining the matters common to the upper flange and the lower flange, it may be simply referred to as a flange.

(Structure of bottom wall portion 20)
As shown in FIG. 2, the bottom wall portion 20 is a portion constituting the bottom of the container 1 and is formed in a substantially rectangular shape in a plan view. The first side side portions 21 are formed so as to face each other in the longitudinal direction of the bottom wall portion 20, and the second side side portions 22 are formed so as to face each other in the lateral direction. On the back surface of the bottom wall portion 20, bottom wall portion ribs 23 for increasing the strength of the bottom wall portion 20 are formed in a grid pattern.

(Structure of side wall)
The side wall portion is a portion constituting the side wall of the container 1. The first side wall portion 30 extends upward from one first side side portion 21 of the bottom wall portion 20, and the first side wall portion 31 extends upward from the other first side side portion 21. The first side wall portions 30 and 31 face each other. Further, a second side wall portion 40 extends upward from one second side side portion 22 of the bottom wall portion 20, and a second side wall portion 41 extends upward from the other second side side portion 22. The second side wall portions 40 and 41 face each other. That is, the container 1 includes a bottom wall portion 20, first side wall portions 30, 31 facing each other, and second side wall portions 40, 41 facing each other, and is formed in a box shape having an open upper surface. There is.

(Structure of upper flange)
The upper flange is a flange that projects outward from above the side wall portion. Each first upper flange 50 projects outward from above each of the first side wall portions 30, 31. Each of the second upper flanges 60 projects outward from above each of the second side wall portions 40 and 41. As shown in FIG. 8, the lower surface of each first upper flange 50 is provided with an upper flange inclined surface 50c inclined so as to go down toward the inside of the container 1. Although not shown, the lower surface of each second upper flange 60 is also provided with an upper flange inclined surface that is inclined so as to go down toward the inside of the container 1.
Further, as shown in FIG. 1, each first upper flange 50 is provided with a first step portion 52 that is lowered by one step toward the inside of the container 1, and each second upper flange 60 is inside the container 1. A second step portion 62, which is one step lower than the other, is provided. Each upper flange forms the uppermost surface of the container 1, and when the container 1 is turned inside out, each upper flange forms a ground plane. In addition, when the matters common to the first step portion 52 and the second step portion 62 are described below, it may be simply referred to as a step portion.

(Structure of lower flange)
The lower flange is a flange that is located below the upper flange and projects outward from the side wall portion. Each of the first lower flanges 51 is located below the first upper flange 50, and projects outward from the first side wall portions 30, 31 respectively. Each of the second lower flanges 61 is located below the second upper flange 60, and projects outward from the second side wall portions 40 and 41, respectively. That is, the container 1 has a double flange protruding outward from above each side wall portion.
As shown in FIG. 8, the upper surface of each first lower flange 51 is provided with a lower flange inclined surface 51c inclined so as to go down toward the outside of the container 1. Although not shown, the upper surface of each second lower flange 61 is also provided with a lower flange inclined surface that is inclined so as to go down toward the outside of the container 1.

Further, as shown in FIG. 1, the first upper flange 50 and the second upper flange 60 are continuously formed. The boundary portion of each of the first upper flange 50 and each second upper flange 60 is formed in an arc shape bulging outward, and forms a corner portion of the container 1. Further, each of the first lower flange 51 and each second lower flange 61 is also continuously formed. Further, the boundary portions of the first lower flange 51 and the second lower flange 61 are each formed in an arc shape bulging outward, and form a corner portion of the container 1.

(Structure of connecting rib 70)
The connecting rib 70 is a rib that connects the upper flange and the lower flange in the vertical direction. One first upper flange 50 and one first lower flange 51 located below the first upper flange 50 are vertically connected by a plurality of connecting ribs 70. Further, the other first upper flange 50 and the other first lower flange 51 located below the first upper flange 50 are also vertically connected by a plurality of connecting ribs 70. Further, one second upper flange 60 and one second lower flange 61 located below the second upper flange 60 are vertically connected by a plurality of connecting ribs 70. Further, the other second upper flange 60 and the other second lower flange 61 located below the second upper flange 60 are also vertically connected by a plurality of connecting ribs 70. Further, the upper flange and the lower flange at each corner of the container 1 are vertically connected by connecting ribs 70, respectively. A predetermined interval is provided between the connecting ribs 70 adjacent to each other, and the interval varies depending on the forming position of the connecting ribs 70. In the present embodiment, each connecting rib 70 is formed in a substantially plate shape extending in the vertical direction, and serves to reinforce between the upper flange and the lower flange and to reinforce each side wall portion.

(Structure of support portion 80)
The support portion 80 is formed so as to project outward from the side wall portion, and is a portion supported by the upper flange of the lower container 1 in a stacking state (FIGS. 4, 7, and 8). Each support portion 80 is formed so as to project outward from the first side wall portions 30, 31 and the second side wall portions 40, 41, respectively. Two support portions 80 are formed on the first side wall portions 30, 31 respectively. Of the two support portions 80 formed on the first side wall portion, the left support portion 80 is formed so as to be adjacent to the left corner portion of the container 1, and the right support portion 80 is formed. It is formed at a position slightly to the left of the right corner of the container 1.
Further, two support portions 80 are formed on the second side wall portions 40 and 41, respectively. Of the two support portions 80 formed on the second side wall portion 40, the front support portion 80 is formed near the right front corner of the container 1, and the rear support portion 80 is on the right side of the container 1. It is formed near the rear corner. On the other hand, of the two support portions 80 formed on the second side wall portion 41, the front support portion 80 is formed at a position slightly rearward from the left front corner of the container 1, and is a rear support portion. 80 is formed at a position slightly forward from the left rear corner of the container 1. Each support portion 80 also serves as a rib formed so as to project from each side wall portion, and reinforces each side wall portion.

The support portion 80 includes a support portion outer wall 81 and support portion side walls 82 and 83. The support portion outer wall 81 projects outward from the side wall portion. Each support portion outer wall 81 of each support portion 80 is parallel to the side wall portion on which the support portion 80 is formed. Further, as shown in FIG. 3, a part 81a above the outer wall 81 of each support portion connects the upper flange and the lower flange.
One side wall of the support portion 82 projects vertically from the side wall portion and is continuously formed with the outer wall of the support portion 81. Further, as shown in FIG. 5, a part 82a above the side wall of the support portion 82 connects the upper flange and the lower flange. Further, the support side wall 82 is formed so as to hang from the upper flange to the lower flange and further to hang from the lower flange.
The other support side wall 83 projects vertically from the side wall portion and is formed in a reverse taper shape. Further, the support portion side wall 83 is continuously formed with the support portion outer wall 81. Further, as shown in FIG. 5, a part 83a above the side wall of the support portion 83 connects the upper flange and the lower flange. Then, as shown in FIG. 3, the first upper flange 50, the first lower flange 51, the connecting rib 70, a part 81a of the support portion outer wall 81, and a part 82a of the support portion side wall 82 (FIG. 5). The space S is formed in the region surrounded by the part 83a (FIG. 5) of the side wall 83 of the support portion. This space S is formed in each portion where the support portion 80 exists. A plurality of connecting ribs 70 are arranged between the upper flange and the lower flange, and there are a plurality of spaces surrounded by the upper flange, the lower flange, and the connecting rib 70, but the portion where the support portion 80 exists. The space S is particularly narrower than the other spaces due to the presence of the portions 81a, 82a, and 83a constituting the support portion 80.

As shown in FIG. 8, a support portion bottom wall 85 is formed in the lower portion of the support portion 80. A protruding portion 84 is formed so as to protrude from the lower portion of the support portion outer wall 81 of the support portion 80. The support bottom wall 85 of the support 80 is formed above the protrusion 84, and the slip prevention portion 86 extends toward the bottom wall 20 from the inner end of the support bottom wall 85. It is out. The slip prevention portion 86 is formed in a wall shape. The slip prevention portion 86 is connected to the bottom wall portion 20 by a wall-shaped connecting wall 88. When the container 1 is in the stacking state, the slip prevention portion 86 of the upper container 1 is formed between the first upper flange 50 and the first lower flange 51 of the first side wall portion 30 of the lower container 1. It is adjacent to the inside of the upper side portion 30a of the side wall portion. The misalignment prevention portion 86 formed in the support portion other than the support portion 80 shown in FIG. 8 and the upper portion of the side wall portion of the lower container 1 have the same arrangement relationship as the support portion 80 shown in FIG. ..
Further, as shown in FIGS. 1, 2 and 8, the connecting wall 88 is formed with a drain hole 87 for draining the water accumulated at the bottom of the container 1, respectively, in the vertical direction. The support bottom wall 85 and the protrusion 84 are examples of the lower part of the support of the present invention. Further, the slip prevention portion 86 and the connecting wall 88 are examples of the connecting portion of the present invention, and the drainage hole is an example of the communication hole of the present invention.

(Structure of Receptor 90)
The receiving portion 90 is formed by being recessed from the inside to the outside of the side wall portion, and is a portion that can receive the support portion 80 of the upper container 1 in the nesting state (FIG. 9). Each of the first side wall portions 30, 31 and the second side wall portions 40, 41 is formed with a receiving portion 90 for receiving each support portion 80 of the upper container 1 when the container 1 is nested. There is. Each receiving portion 90 is formed to be depressed from the inside to the outside of the side wall portion. That is, by forming each support portion 80 so as to project from the inside to the outside of each side wall portion, the portion formed by being depressed from the inside to the outside of each side wall portion forms the receiving portion 90. When viewed from the inside of the container 1, the support portion outer wall 81 of the support portion 80 corresponds to the concave bottom wall of the receiving portion 90, and the support portion side walls 82 and 83 of the support portion 80 correspond to both inner walls of the concave portion of the receiving portion 90.
The support portion 80 is for supporting the upper container 1 to the lower container 1 when stacking the containers 1, and the receiving portion 90 is for supporting the upper container 1 to the lower container 1 when nesting the container 1. It is for receiving each support portion 80. That is, the support portion 80 and the receiving portion 90 serve as the support portion 80 or the receiving portion 90 depending on whether the container 1 is in the stacking state or the nesting state.

Further, of the two receiving portions 90 formed on the first side wall portion 30, the distance L1 from the left end 90a of the opening of the receiving portion 90 on the left side to the left end 50a of the first upper flange 50 and the right side. Comparing the distance L2 from the right end 90b of the opening of the receiving portion 90 to the right end 50b of the first upper flange 50, the distance L1 is shorter than the distance L2. That is, the two receiving portions 90 (supporting portions 80) formed on the first side wall portion 30 are formed at different distances from the center in the longitudinal direction of the first side wall portion 30. The two receiving portions 90 formed on the first side wall portion 31 have the same positional relationship as the two receiving portions 90 formed on the first side wall portion 30.
Further, the distance between the two receiving portions 90 (supporting portions 80) formed on the second side wall portion 40 on the right side is the two receiving portions 90 (supporting portions 90) formed on the second side wall portion 41 on the left side. It is wider than the distance between the parts 80).
As described above, since the receiving portions 90 (supporting portions 80) formed on the side wall portions are not formed at symmetrical positions, when stacking the containers 1, for example, the lower container 1 is shown in FIG. When the upper container 1 is swiveled by 180 ° in a plan view from the posture shown in FIG. 1, each support portion 80 of the upper container 1 is not received by each receiving portion 90 of the lower container 1 and is lower. It is supported by each first step portion 52 and each second step portion 62 of the container 1 on the side. Further, if the lower container is in the posture shown in FIG. 1 and the upper container 1 is also in the posture shown in FIG. 1, the upper container 1 can be nested in the lower container 1.

(Structure of through hole 10)
As shown in FIG. 1, through holes 10 are vertically formed in each of the first stepped portions 52 constituting each first upper flange 50 and the second stepped portion 62 constituting each second upper flange 60. It is formed through. Each through hole 10 is formed at a position corresponding to each protrusion 84 provided on each support portion 80 of the upper container 1 when the container 1 is stacked. Further, each through hole 10 communicates with the space S, respectively. Further, as shown in FIG. 3, the upper end 71 of the connecting rib 70 is exposed from each through hole 10. In other words, among the plurality of connecting ribs 70, the same number of connecting ribs 70 as the through holes 10 are arranged at positions where the upper end 71 thereof is exposed from the through holes 10.
Further, as shown in FIGS. 6 and 8, each through hole 10 is formed to have a size in which the protruding portion 84 of the upper container 1 can be inserted. A gap D is formed between the protrusion 84 of the upper container 1 and the through hole 10 of the lower container 1. The gap D is a size that allows the washing water caught on the upper flange of the lower container 1 to be drained from the gap D when the container 1 is in a stacking state for cleaning. Each upper end 71 of each connecting rib 70 exposed from each through hole 10 is arranged at a position lower than the opening edge 11 on the upper side of the through hole 10, respectively. As shown in FIG. 6, in the stacking state, each protrusion 84 of each support portion 80 of the upper container 1 is supported by the upper end 71 of the connecting rib 70 exposed from the through hole 10 of the lower container 1. A through hole inclined portion 12 that descends to the through hole 10 is provided on the entire circumference of the opening edge 11 of each through hole 10.

(Other structures)
Further, as shown in FIG. 1, a grip portion 2 on the left side is provided between the second upper flange 60 on the left side and the second lower flange 61. The grip portion 2 is continuously formed from the second upper flange 60 to the second lower flange 61, and the upper surface is common to the second step portion 62 on the left side. Further, a grip portion (not shown) on the right side is provided in the region from the second step portion 62 on the right side to the outer wall surface of the second side wall portion 40 on the right side.

[Effect of embodiment]
(1) If the container 1 of the above-described embodiment is carried out, since the upper flange has a through hole 10 penetrating up and down, the container 1 is turned over after cleaning (the back surface of the bottom wall portion 20 is turned upward). ) Therefore, the washing water remaining between the upper flange and the lower flange can be drained from the through hole 10. That is, the through hole 10 serves as a drain hole.

(2) In particular, among a plurality of spaces surrounded by the upper flange, the lower flange, and the connecting rib 70, a part 81a of the support portion outer wall 81 constituting the support portion 80 or the receiving portion 90, and a side wall of the support portion. Since the space S in which the part 82a of the 82 and the part 83a of the side wall 83 of the support portion are present is narrower than the other spaces, the drainage is poor and the washing water tends to remain.
However, since the upper end 71 of the connecting rib 70 forming the space S is exposed from the through hole 10, the space is created by turning over the container 1 after cleaning (making the back surface of the bottom wall portion 20 face up). The washing water remaining in S can be drained from the through hole 10.

(3) Moreover, when the cleaning water is sprayed between the upper flange and the lower flange, the water containing the dirt removed by the cleaning does not remain between the upper flange and the lower flange, and the water does not remain between the upper flange and the lower flange. You can try to get out. That is, the through hole 10 acts as a water passage hole.
As described above, if the container 1 of the above-described embodiment is carried out, the cleaning efficiency of the container can be improved.

(4) Further, if the container 1 of the above-described embodiment is carried out, the protruding portion 84 of the upper container 1 is supported by the upper end 71 of the connecting rib 70 of the lower container 1 in the stacking state, so that the lower container 1 is lower. The load applied to the container 1 on the side can be distributed to the connecting rib 70.
Therefore, it is possible to prevent the side wall portion of the lower container 1 from swelling outward.

(5) Further, since the upper end 71 of the connecting rib 70 is arranged at a position lower than the opening edge 11 on the upper side of the through hole 10, the protruding portion 84 of the support portion 80 of the upper container 1 is in a stacking state. The position is lower than the opening edge 11 of the through hole 10. That is, the protruding portion 84 of the support portion 80 is surrounded by the opening edge 11 of the through hole 10.
Therefore, even when a force for moving the upper container 1 in the horizontal direction acts when the container 1 is transported in the stacking state, the protruding portion 84 of the upper container 1 is a through hole of the lower container 1. Since the protrusion 84 of the upper container 1 does not come off from the through hole 10 because it comes into contact with the opening edge 11 of 10, the stacking state can be maintained.

(6) Further, since the slip prevention portion 86 extends toward the bottom wall portion 20 from the inner end portion of the support portion bottom wall 85, the upper container is used when the container 1 is transported in a stacking state. Even when a force that moves 1 in the horizontal direction is applied, the displacement prevention portion 86 of the upper container 1 abuts on the upper portion of the side wall portion of the lower container 1, and the movement in the horizontal direction is restricted. Therefore, the stacking state can be maintained.

(7) Further, when the container 1 of the above-described embodiment is carried out, the lower surface of the upper flange is provided with the upper flange inclined surface 50c inclined so as to go down toward the inside of the container 1. When the container 1 is turned inside out (when the back surface of the bottom wall portion 20 faces upward), the upper flange inclined surface 50c changes to an inclined state so as to go down toward the outside of the container 1.
Therefore, when the container 1 is turned inside out for cleaning, the cleaning water applied to the lower surface of the upper flange flows down along the lower surface of the upper flange, so that the cleaning water is unlikely to remain on the lower surface of the upper flange.

(8) Further, when the container 1 of the above-described embodiment is carried out, the upper surface of the lower flange is provided with the lower flange inclined surface 51c inclined so as to go down toward the outside of the container 1. When cleaning the container 1, the cleaning water applied to the upper surface of the lower flange flows down along the upper surface of the lower flange, so that the cleaning water is unlikely to remain on the upper surface of the lower flange.

(9) Further, if the container 1 of the above-described embodiment is carried out, the upper flange is provided with the stepped portions 52 and 62, and the through holes 10 are provided with the stepped portions 52 and 62. When the container 1 is transported in a stacking state, a force that moves the upper container 1 in the horizontal direction acts, and the protruding portion 84 of the upper container 1 is exposed from the through hole 10 of the lower container 1. Even when the protrusion 84 deviates from the upper end 71 of the 70, the protruding portion 84 abuts on the stepped portions 52 and 62 of the lower container 1, so that the stacking state can be maintained.

(10) Further, when stacking the containers 1, the protruding portion 84 of the upper container 1 is brought into contact with the stepped portion 52 or the stepped portion 62 of the lower container 1 along the stepped portion 52 or the stepped portion 62. Can be slid and stacked. That is, the stepped portion 52 or the stepped portion 62 of the lower container 1 can be used like a rail for sliding the upper container 1.
Therefore, it is possible to shorten the walking distance while the upper container 1 is lifted during stacking, so that the labor of the operator can be reduced.

(11) Further, if the container 1 of the above-described embodiment is carried out, the edge of each through hole 10 is provided with a through hole inclined portion 12 that descends to the through hole 10, so that the edge of the through hole 10 is provided. It is easy to guide the washing water around the through hole 12 to the through hole inclined portion 12 and drain the washing water from the through hole 10.
Further, when the protrusion 84 of the upper container 1 is slid along the step portion 52 or the step portion 62 of the lower container 1, the protrusion 84 of the upper container 1 is a through hole on the through hole inclined portion 12. Since it slides down toward 10, it is easy to lure the protrusion 84 into the through hole 10. That is, stacking can be easily performed, and the upper container 1 can be easily positioned.

(12) Further, when the container 1 of the above-described embodiment is carried out, a drain hole 87 for draining the water accumulated in the bottom of the container 1 is formed in the support portion bottom wall 85 of each support portion 80, respectively. Therefore, the washing water collected at the bottom of the container 1 at the time of washing can be drained from the drain hole 87.

(13) Further, when the container 1 is turned inside out and dried after cleaning, the inside of the container 1 can be ventilated through each drain hole 87, so that the drying can be promoted.

(14) Further, in the nesting state, each of the drain holes 87 of the upper container 1 and each of the drain holes 87 of the lower container 1 are configured to be in a state of communicating with each other, so that the upper side is further connected. The wash water remaining inside the container 1 can be drained from each drain hole 87 of the upper container 1 to the outside through each drain hole 87 of the lower container 1.

(15) Further, in a state where the protruding portion 84 of the upper container 1 is supported by the upper end 71 of the connecting rib 70 of the lower container 1, the protruding portion 84 of the upper container 1 and the lower container 1 Since the gap D is formed between the through hole 10 and the through hole 10, the washing water on the upper flange can be drained through the gap D of the through hole 10 even when the cleaning is performed in the stacking state.
Moreover, the upper surface of the lower flange is provided with a lower flange inclined surface 51c that is inclined so as to go down toward the outside of the container 1, and the washing water drained from the gap D of the through hole 10 is the lower flange. Since it runs down the upper surface, it is difficult for the washing water to remain on the upper surface of the lower flange.

<Other embodiments>
(1) A fitting recess that fits into the upper end 71 of the connecting rib 70 can be formed in each lower portion of each support portion 80. By implementing this configuration, when the container 1 is transported in the stacking state, the upper container 1 is prevented from shifting in the horizontal direction even when a force for moving the upper container 1 in the horizontal direction is applied. be able to. In this configuration, the upper end 71 of the connecting rib 70 may protrude from the through hole 10.
(2) The lower container 1 and the upper container 1 are in a nesting state or a stacking state depending on whether the upper container 1 is swiveled by 180 ° in a plan view with respect to the lower container 1 and stacked without swirling. If possible, the shape, formation position and number of the support portion 80 and the receiving portion 90 are not limited to the shape, formation position and number described in the above-described embodiment. For example, the support side walls 82 and 83 of the support portion 80 may have the same shape, or three or more may be formed on each side wall.

(3) It is also possible to form a structure in which the bottom wall 85 of the support portion, the connecting wall 88, and the bottom wall portion 20 are continuous without forming the slip prevention portion 86, and the drain hole 87 is formed through the connecting wall 88. can.
(4) In the above-described embodiment, as the container of the present invention, the upper container can be stacked by swirling 180 ° in a plan view with respect to the lower container, and can be stacked without swirling. I explained the configuration that can be in the nesting state in. However, the present invention is not limited to the configuration thereof, and can be put into a nesting state by swirling the upper container 1 with respect to the lower container 1 by 180 ° in a plan view and stacking them, without swirling. It can also be applied to containers that can be stacked by stacking.

1 Container 10 Through hole 11 Opening edge 12 Through hole inclined portion 20 Bottom wall portion 21 First side side portion 22 Second side side portion 30, 31 First side wall portion 40, 41 Second side wall portion 50 First upper flange 50c Flange inclined surface 51 First lower flange 51c Lower flange inclined surface 52 First step portion 60 Second upper flange 61 Second lower flange 62 Second step portion 70 Connecting rib 71 Upper end 80 Support portion 81 Support portion Outer wall 82, 83 Support portion Side wall 84 Protruding part 85 Supporting part Bottom wall 86 Displacement prevention part 87 Drain hole 88 Connecting wall 90 Receiving part D Gap

Claims (6)

The bottom wall, which is approximately rectangular in plan view,
A side wall portion extending upward from the side side portion of the bottom wall portion and a side wall portion
The upper flange protruding from the upper side of the side wall portion to the outside,
The lower flange, which is located below the upper flange and projects outward from the side wall,
It is provided with a connecting rib that connects the upper flange and the lower flange in the vertical direction.
The lower container and the upper container can be in a nesting state or a stacking state depending on whether the upper container is swiveled by 180 ° in a plan view with respect to the lower container and stacked without swirling. And
A support portion that is formed so as to project outward from the side wall portion and is supported by the upper flange of the lower container in the stacking state.
A container having a recess formed from the inside to the outside of the side wall portion and having a receiving portion capable of receiving the support portion of the upper container in the nesting state.
At least a part of the wall portion constituting the support portion or the receiving portion is connected to the upper flange and the lower flange.
The upper flange is provided with through holes that penetrate vertically.
The upper end of the connecting rib is exposed from the through hole.
A container characterized in that, in the stacking state, the lower portion of the support portion of the upper container is supported by the upper end of the connecting rib exposed from the through hole of the lower container. .. The lower portion is provided with a downwardly projecting portion.
The upper end of the connecting rib is arranged at a position lower than the opening edge on the upper side of the through hole.
The container according to claim 1, wherein in the stacking state, the protruding portion of the upper container is supported by the upper end of the connecting rib of the lower container. Between the protrusion of the upper container and the through hole of the lower container while the protrusion of the upper container is supported by the upper end of the connecting rib of the lower container. The container according to claim 2, wherein a gap is formed in the container. On the lower surface of the upper flange,
It is equipped with an upper flange inclined surface that is inclined so as to go down toward the inside of the container.
On the upper surface of the lower flange,
The container according to any one of claims 1 to 3, wherein a lower flange inclined surface inclined so as to go down toward the outside of the container is provided. The upper flange is provided with a stepped portion.
The through hole is provided in the step portion, and the through hole is provided in the step portion.
The container according to any one of claims 1 to 4, wherein a through-hole inclined portion that descends to the through-hole is provided at the edge of the through-hole. The connecting portion that connects the lower portion and the bottom wall portion has a connecting portion.
A communication hole that communicates with the inside and outside of the container is formed.
Claims 1 to 5 are characterized in that, in the nesting state, the communication hole of the upper container and the communication hole of the lower container are configured to communicate with each other. The container according to any one of the above.

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